\r\n\r\n\r\n\r\n","import mod from \"-!../../../node_modules/cache-loader/dist/cjs.js??ref--12-0!../../../node_modules/thread-loader/dist/cjs.js!../../../node_modules/babel-loader/lib/index.js!../../../node_modules/cache-loader/dist/cjs.js??ref--0-0!../../../node_modules/vue-loader/lib/index.js??vue-loader-options!./Comment.vue?vue&type=script&lang=js&\"; export default mod; export * from \"-!../../../node_modules/cache-loader/dist/cjs.js??ref--12-0!../../../node_modules/thread-loader/dist/cjs.js!../../../node_modules/babel-loader/lib/index.js!../../../node_modules/cache-loader/dist/cjs.js??ref--0-0!../../../node_modules/vue-loader/lib/index.js??vue-loader-options!./Comment.vue?vue&type=script&lang=js&\"","import { render, staticRenderFns } from \"./Comment.vue?vue&type=template&id=454b813d&\"\nimport script from \"./Comment.vue?vue&type=script&lang=js&\"\nexport * from \"./Comment.vue?vue&type=script&lang=js&\"\n\n\n/* normalize component */\nimport normalizer from \"!../../../node_modules/vue-loader/lib/runtime/componentNormalizer.js\"\nvar component = normalizer(\n script,\n render,\n staticRenderFns,\n false,\n null,\n null,\n null\n \n)\n\nexport default component.exports","'use strict';\nvar DESCRIPTORS = require('../internals/descriptors');\nvar global = require('../internals/global');\nvar isForced = require('../internals/is-forced');\nvar redefine = require('../internals/redefine');\nvar has = require('../internals/has');\nvar classof = require('../internals/classof-raw');\nvar inheritIfRequired = require('../internals/inherit-if-required');\nvar toPrimitive = require('../internals/to-primitive');\nvar fails = require('../internals/fails');\nvar create = require('../internals/object-create');\nvar getOwnPropertyNames = require('../internals/object-get-own-property-names').f;\nvar getOwnPropertyDescriptor = require('../internals/object-get-own-property-descriptor').f;\nvar defineProperty = require('../internals/object-define-property').f;\nvar trim = require('../internals/string-trim').trim;\n\nvar NUMBER = 'Number';\nvar NativeNumber = global[NUMBER];\nvar NumberPrototype = NativeNumber.prototype;\n\n// Opera ~12 has broken Object#toString\nvar BROKEN_CLASSOF = classof(create(NumberPrototype)) == NUMBER;\n\n// `ToNumber` abstract operation\n// https://tc39.github.io/ecma262/#sec-tonumber\nvar toNumber = function (argument) {\n var it = toPrimitive(argument, false);\n var first, third, radix, maxCode, digits, length, index, code;\n if (typeof it == 'string' && it.length > 2) {\n it = trim(it);\n first = it.charCodeAt(0);\n if (first === 43 || first === 45) {\n third = it.charCodeAt(2);\n if (third === 88 || third === 120) return NaN; // Number('+0x1') should be NaN, old V8 fix\n } else if (first === 48) {\n switch (it.charCodeAt(1)) {\n case 66: case 98: radix = 2; maxCode = 49; break; // fast equal of /^0b[01]+$/i\n case 79: case 111: radix = 8; maxCode = 55; break; // fast equal of /^0o[0-7]+$/i\n default: return +it;\n }\n digits = it.slice(2);\n length = digits.length;\n for (index = 0; index < length; index++) {\n code = digits.charCodeAt(index);\n // parseInt parses a string to a first unavailable symbol\n // but ToNumber should return NaN if a string contains unavailable symbols\n if (code < 48 || code > maxCode) return NaN;\n } return parseInt(digits, radix);\n }\n } return +it;\n};\n\n// `Number` constructor\n// https://tc39.github.io/ecma262/#sec-number-constructor\nif (isForced(NUMBER, !NativeNumber(' 0o1') || !NativeNumber('0b1') || NativeNumber('+0x1'))) {\n var NumberWrapper = function Number(value) {\n var it = arguments.length < 1 ? 0 : value;\n var dummy = this;\n return dummy instanceof NumberWrapper\n // check on 1..constructor(foo) case\n && (BROKEN_CLASSOF ? fails(function () { NumberPrototype.valueOf.call(dummy); }) : classof(dummy) != NUMBER)\n ? inheritIfRequired(new NativeNumber(toNumber(it)), dummy, NumberWrapper) : toNumber(it);\n };\n for (var keys = DESCRIPTORS ? getOwnPropertyNames(NativeNumber) : (\n // ES3:\n 'MAX_VALUE,MIN_VALUE,NaN,NEGATIVE_INFINITY,POSITIVE_INFINITY,' +\n // ES2015 (in case, if modules with ES2015 Number statics required before):\n 'EPSILON,isFinite,isInteger,isNaN,isSafeInteger,MAX_SAFE_INTEGER,' +\n 'MIN_SAFE_INTEGER,parseFloat,parseInt,isInteger'\n ).split(','), j = 0, key; keys.length > j; j++) {\n if (has(NativeNumber, key = keys[j]) && !has(NumberWrapper, key)) {\n defineProperty(NumberWrapper, key, getOwnPropertyDescriptor(NativeNumber, key));\n }\n }\n NumberWrapper.prototype = NumberPrototype;\n NumberPrototype.constructor = NumberWrapper;\n redefine(global, NUMBER, NumberWrapper);\n}\n","var wellKnownSymbol = require('../internals/well-known-symbol');\n\nvar MATCH = wellKnownSymbol('match');\n\nmodule.exports = function (METHOD_NAME) {\n var regexp = /./;\n try {\n '/./'[METHOD_NAME](regexp);\n } catch (e) {\n try {\n regexp[MATCH] = false;\n return '/./'[METHOD_NAME](regexp);\n } catch (f) { /* empty */ }\n } return false;\n};\n","var render = function () {var _vm=this;var _h=_vm.$createElement;var _c=_vm._self._c||_h;return _c('div',{staticClass:\"textEditor\"},[_c('editor-menu-bar',{attrs:{\"editor\":_vm.editor},scopedSlots:_vm._u([{key:\"default\",fn:function(ref){\nvar commands = ref.commands;\nvar isActive = ref.isActive;\nreturn [_c('div',{staticClass:\"menubar\"},[_c('button',{staticClass:\"menubar__button\",class:{ 'is-active': isActive.bold() },on:{\"click\":commands.bold}},[_c('b-icon',{attrs:{\"icon\":\"format-bold\"}})],1),_c('button',{staticClass:\"menubar__button\",class:{ 'is-active': isActive.italic() },on:{\"click\":commands.italic}},[_c('b-icon',{attrs:{\"icon\":\"format-italic\"}})],1),_c('button',{staticClass:\"menubar__button\",class:{ 'is-active': isActive.underline() },on:{\"click\":commands.underline}},[_c('b-icon',{attrs:{\"icon\":\"format-underline\"}})],1),_c('button',{staticClass:\"menubar__button\",class:{ 'is-active': isActive.heading({ level: 1 }) },on:{\"click\":function($event){_vm.toggleCommand(isActive.heading({ level: 1 }), 'h1')}}},[_c('b-icon',{attrs:{\"icon\":\"format-header-1\"}})],1),_c('button',{staticClass:\"menubar__button\",class:{ 'is-active': isActive.heading({ level: 2 }) },on:{\"click\":function($event){_vm.toggleCommand(isActive.heading({ level: 2 }), 'h2')}}},[_c('b-icon',{attrs:{\"icon\":\"format-header-2\"}})],1),_c('button',{staticClass:\"menubar__button\",class:{ 'is-active': isActive.heading({ level: 3 }) },on:{\"click\":function($event){_vm.toggleCommand(isActive.heading({ level: 3 }), 'h3')}}},[_c('b-icon',{attrs:{\"icon\":\"format-header-3\"}})],1),_c('button',{staticClass:\"menubar__button\",on:{\"click\":commands.undo}},[_c('b-icon',{attrs:{\"icon\":\"undo\"}})],1),_c('button',{staticClass:\"menubar__button\",on:{\"click\":commands.redo}},[_c('b-icon',{attrs:{\"icon\":\"redo\"}})],1)])]}}])}),_c('editor-content',{staticClass:\"textEditor__content\",attrs:{\"editor\":_vm.editor}})],1)}\nvar staticRenderFns = []\n\nexport { render, staticRenderFns }","// ::- Persistent data structure representing an ordered mapping from\n// strings to values, with some convenient update methods.\nfunction OrderedMap(content) {\n this.content = content;\n}\n\nOrderedMap.prototype = {\n constructor: OrderedMap,\n\n find: function(key) {\n for (var i = 0; i < this.content.length; i += 2)\n if (this.content[i] === key) return i\n return -1\n },\n\n // :: (string) → ?any\n // Retrieve the value stored under `key`, or return undefined when\n // no such key exists.\n get: function(key) {\n var found = this.find(key);\n return found == -1 ? undefined : this.content[found + 1]\n },\n\n // :: (string, any, ?string) → OrderedMap\n // Create a new map by replacing the value of `key` with a new\n // value, or adding a binding to the end of the map. If `newKey` is\n // given, the key of the binding will be replaced with that key.\n update: function(key, value, newKey) {\n var self = newKey && newKey != key ? this.remove(newKey) : this;\n var found = self.find(key), content = self.content.slice();\n if (found == -1) {\n content.push(newKey || key, value);\n } else {\n content[found + 1] = value;\n if (newKey) content[found] = newKey;\n }\n return new OrderedMap(content)\n },\n\n // :: (string) → OrderedMap\n // Return a map with the given key removed, if it existed.\n remove: function(key) {\n var found = this.find(key);\n if (found == -1) return this\n var content = this.content.slice();\n content.splice(found, 2);\n return new OrderedMap(content)\n },\n\n // :: (string, any) → OrderedMap\n // Add a new key to the start of the map.\n addToStart: function(key, value) {\n return new OrderedMap([key, value].concat(this.remove(key).content))\n },\n\n // :: (string, any) → OrderedMap\n // Add a new key to the end of the map.\n addToEnd: function(key, value) {\n var content = this.remove(key).content.slice();\n content.push(key, value);\n return new OrderedMap(content)\n },\n\n // :: (string, string, any) → OrderedMap\n // Add a key after the given key. If `place` is not found, the new\n // key is added to the end.\n addBefore: function(place, key, value) {\n var without = this.remove(key), content = without.content.slice();\n var found = without.find(place);\n content.splice(found == -1 ? content.length : found, 0, key, value);\n return new OrderedMap(content)\n },\n\n // :: ((key: string, value: any))\n // Call the given function for each key/value pair in the map, in\n // order.\n forEach: function(f) {\n for (var i = 0; i < this.content.length; i += 2)\n f(this.content[i], this.content[i + 1]);\n },\n\n // :: (union) → OrderedMap\n // Create a new map by prepending the keys in this map that don't\n // appear in `map` before the keys in `map`.\n prepend: function(map) {\n map = OrderedMap.from(map);\n if (!map.size) return this\n return new OrderedMap(map.content.concat(this.subtract(map).content))\n },\n\n // :: (union) → OrderedMap\n // Create a new map by appending the keys in this map that don't\n // appear in `map` after the keys in `map`.\n append: function(map) {\n map = OrderedMap.from(map);\n if (!map.size) return this\n return new OrderedMap(this.subtract(map).content.concat(map.content))\n },\n\n // :: (union) → OrderedMap\n // Create a map containing all the keys in this map that don't\n // appear in `map`.\n subtract: function(map) {\n var result = this;\n map = OrderedMap.from(map);\n for (var i = 0; i < map.content.length; i += 2)\n result = result.remove(map.content[i]);\n return result\n },\n\n // :: number\n // The amount of keys in this map.\n get size() {\n return this.content.length >> 1\n }\n};\n\n// :: (?union) → OrderedMap\n// Return a map with the given content. If null, create an empty\n// map. If given an ordered map, return that map itself. If given an\n// object, create a map from the object's properties.\nOrderedMap.from = function(value) {\n if (value instanceof OrderedMap) return value\n var content = [];\n if (value) for (var prop in value) content.push(prop, value[prop]);\n return new OrderedMap(content)\n};\n\nvar orderedmap = OrderedMap;\n\nexport default orderedmap;\n","import OrderedMap from 'orderedmap';\n\nfunction findDiffStart(a, b, pos) {\n for (var i = 0;; i++) {\n if (i == a.childCount || i == b.childCount)\n { return a.childCount == b.childCount ? null : pos }\n\n var childA = a.child(i), childB = b.child(i);\n if (childA == childB) { pos += childA.nodeSize; continue }\n\n if (!childA.sameMarkup(childB)) { return pos }\n\n if (childA.isText && childA.text != childB.text) {\n for (var j = 0; childA.text[j] == childB.text[j]; j++)\n { pos++; }\n return pos\n }\n if (childA.content.size || childB.content.size) {\n var inner = findDiffStart(childA.content, childB.content, pos + 1);\n if (inner != null) { return inner }\n }\n pos += childA.nodeSize;\n }\n}\n\nfunction findDiffEnd(a, b, posA, posB) {\n for (var iA = a.childCount, iB = b.childCount;;) {\n if (iA == 0 || iB == 0)\n { return iA == iB ? null : {a: posA, b: posB} }\n\n var childA = a.child(--iA), childB = b.child(--iB), size = childA.nodeSize;\n if (childA == childB) {\n posA -= size; posB -= size;\n continue\n }\n\n if (!childA.sameMarkup(childB)) { return {a: posA, b: posB} }\n\n if (childA.isText && childA.text != childB.text) {\n var same = 0, minSize = Math.min(childA.text.length, childB.text.length);\n while (same < minSize && childA.text[childA.text.length - same - 1] == childB.text[childB.text.length - same - 1]) {\n same++; posA--; posB--;\n }\n return {a: posA, b: posB}\n }\n if (childA.content.size || childB.content.size) {\n var inner = findDiffEnd(childA.content, childB.content, posA - 1, posB - 1);\n if (inner) { return inner }\n }\n posA -= size; posB -= size;\n }\n}\n\n// ::- A fragment represents a node's collection of child nodes.\n//\n// Like nodes, fragments are persistent data structures, and you\n// should not mutate them or their content. Rather, you create new\n// instances whenever needed. The API tries to make this easy.\nvar Fragment = function Fragment(content, size) {\n this.content = content;\n // :: number\n // The size of the fragment, which is the total of the size of its\n // content nodes.\n this.size = size || 0;\n if (size == null) { for (var i = 0; i < content.length; i++)\n { this.size += content[i].nodeSize; } }\n};\n\nvar prototypeAccessors = { firstChild: { configurable: true },lastChild: { configurable: true },childCount: { configurable: true } };\n\n// :: (number, number, (node: Node, start: number, parent: Node, index: number) → ?bool, ?number)\n// Invoke a callback for all descendant nodes between the given two\n// positions (relative to start of this fragment). Doesn't descend\n// into a node when the callback returns `false`.\nFragment.prototype.nodesBetween = function nodesBetween (from, to, f, nodeStart, parent) {\n if ( nodeStart === void 0 ) nodeStart = 0;\n\n for (var i = 0, pos = 0; pos < to; i++) {\n var child = this.content[i], end = pos + child.nodeSize;\n if (end > from && f(child, nodeStart + pos, parent, i) !== false && child.content.size) {\n var start = pos + 1;\n child.nodesBetween(Math.max(0, from - start),\n Math.min(child.content.size, to - start),\n f, nodeStart + start);\n }\n pos = end;\n }\n};\n\n// :: ((node: Node, pos: number, parent: Node) → ?bool)\n// Call the given callback for every descendant node. The callback\n// may return `false` to prevent traversal of a given node's children.\nFragment.prototype.descendants = function descendants (f) {\n this.nodesBetween(0, this.size, f);\n};\n\n// : (number, number, ?string, ?string) → string\nFragment.prototype.textBetween = function textBetween (from, to, blockSeparator, leafText) {\n var text = \"\", separated = true;\n this.nodesBetween(from, to, function (node, pos) {\n if (node.isText) {\n text += node.text.slice(Math.max(from, pos) - pos, to - pos);\n separated = !blockSeparator;\n } else if (node.isLeaf && leafText) {\n text += leafText;\n separated = !blockSeparator;\n } else if (!separated && node.isBlock) {\n text += blockSeparator;\n separated = true;\n }\n }, 0);\n return text\n};\n\n// :: (Fragment) → Fragment\n// Create a new fragment containing the combined content of this\n// fragment and the other.\nFragment.prototype.append = function append (other) {\n if (!other.size) { return this }\n if (!this.size) { return other }\n var last = this.lastChild, first = other.firstChild, content = this.content.slice(), i = 0;\n if (last.isText && last.sameMarkup(first)) {\n content[content.length - 1] = last.withText(last.text + first.text);\n i = 1;\n }\n for (; i < other.content.length; i++) { content.push(other.content[i]); }\n return new Fragment(content, this.size + other.size)\n};\n\n// :: (number, ?number) → Fragment\n// Cut out the sub-fragment between the two given positions.\nFragment.prototype.cut = function cut (from, to) {\n if (to == null) { to = this.size; }\n if (from == 0 && to == this.size) { return this }\n var result = [], size = 0;\n if (to > from) { for (var i = 0, pos = 0; pos < to; i++) {\n var child = this.content[i], end = pos + child.nodeSize;\n if (end > from) {\n if (pos < from || end > to) {\n if (child.isText)\n { child = child.cut(Math.max(0, from - pos), Math.min(child.text.length, to - pos)); }\n else\n { child = child.cut(Math.max(0, from - pos - 1), Math.min(child.content.size, to - pos - 1)); }\n }\n result.push(child);\n size += child.nodeSize;\n }\n pos = end;\n } }\n return new Fragment(result, size)\n};\n\nFragment.prototype.cutByIndex = function cutByIndex (from, to) {\n if (from == to) { return Fragment.empty }\n if (from == 0 && to == this.content.length) { return this }\n return new Fragment(this.content.slice(from, to))\n};\n\n// :: (number, Node) → Fragment\n// Create a new fragment in which the node at the given index is\n// replaced by the given node.\nFragment.prototype.replaceChild = function replaceChild (index, node) {\n var current = this.content[index];\n if (current == node) { return this }\n var copy = this.content.slice();\n var size = this.size + node.nodeSize - current.nodeSize;\n copy[index] = node;\n return new Fragment(copy, size)\n};\n\n// : (Node) → Fragment\n// Create a new fragment by prepending the given node to this\n// fragment.\nFragment.prototype.addToStart = function addToStart (node) {\n return new Fragment([node].concat(this.content), this.size + node.nodeSize)\n};\n\n// : (Node) → Fragment\n// Create a new fragment by appending the given node to this\n// fragment.\nFragment.prototype.addToEnd = function addToEnd (node) {\n return new Fragment(this.content.concat(node), this.size + node.nodeSize)\n};\n\n// :: (Fragment) → bool\n// Compare this fragment to another one.\nFragment.prototype.eq = function eq (other) {\n if (this.content.length != other.content.length) { return false }\n for (var i = 0; i < this.content.length; i++)\n { if (!this.content[i].eq(other.content[i])) { return false } }\n return true\n};\n\n// :: ?Node\n// The first child of the fragment, or `null` if it is empty.\nprototypeAccessors.firstChild.get = function () { return this.content.length ? this.content[0] : null };\n\n// :: ?Node\n// The last child of the fragment, or `null` if it is empty.\nprototypeAccessors.lastChild.get = function () { return this.content.length ? this.content[this.content.length - 1] : null };\n\n// :: number\n// The number of child nodes in this fragment.\nprototypeAccessors.childCount.get = function () { return this.content.length };\n\n// :: (number) → Node\n// Get the child node at the given index. Raise an error when the\n// index is out of range.\nFragment.prototype.child = function child (index) {\n var found = this.content[index];\n if (!found) { throw new RangeError(\"Index \" + index + \" out of range for \" + this) }\n return found\n};\n\n// :: (number) → ?Node\n// Get the child node at the given index, if it exists.\nFragment.prototype.maybeChild = function maybeChild (index) {\n return this.content[index]\n};\n\n// :: ((node: Node, offset: number, index: number))\n// Call `f` for every child node, passing the node, its offset\n// into this parent node, and its index.\nFragment.prototype.forEach = function forEach (f) {\n for (var i = 0, p = 0; i < this.content.length; i++) {\n var child = this.content[i];\n f(child, p, i);\n p += child.nodeSize;\n }\n};\n\n// :: (Fragment) → ?number\n// Find the first position at which this fragment and another\n// fragment differ, or `null` if they are the same.\nFragment.prototype.findDiffStart = function findDiffStart$1 (other, pos) {\n if ( pos === void 0 ) pos = 0;\n\n return findDiffStart(this, other, pos)\n};\n\n// :: (Fragment) → ?{a: number, b: number}\n// Find the first position, searching from the end, at which this\n// fragment and the given fragment differ, or `null` if they are the\n// same. Since this position will not be the same in both nodes, an\n// object with two separate positions is returned.\nFragment.prototype.findDiffEnd = function findDiffEnd$1 (other, pos, otherPos) {\n if ( pos === void 0 ) pos = this.size;\n if ( otherPos === void 0 ) otherPos = other.size;\n\n return findDiffEnd(this, other, pos, otherPos)\n};\n\n// : (number, ?number) → {index: number, offset: number}\n// Find the index and inner offset corresponding to a given relative\n// position in this fragment. The result object will be reused\n// (overwritten) the next time the function is called. (Not public.)\nFragment.prototype.findIndex = function findIndex (pos, round) {\n if ( round === void 0 ) round = -1;\n\n if (pos == 0) { return retIndex(0, pos) }\n if (pos == this.size) { return retIndex(this.content.length, pos) }\n if (pos > this.size || pos < 0) { throw new RangeError((\"Position \" + pos + \" outside of fragment (\" + (this) + \")\")) }\n for (var i = 0, curPos = 0;; i++) {\n var cur = this.child(i), end = curPos + cur.nodeSize;\n if (end >= pos) {\n if (end == pos || round > 0) { return retIndex(i + 1, end) }\n return retIndex(i, curPos)\n }\n curPos = end;\n }\n};\n\n// :: () → string\n// Return a debugging string that describes this fragment.\nFragment.prototype.toString = function toString () { return \"<\" + this.toStringInner() + \">\" };\n\nFragment.prototype.toStringInner = function toStringInner () { return this.content.join(\", \") };\n\n// :: () → ?Object\n// Create a JSON-serializeable representation of this fragment.\nFragment.prototype.toJSON = function toJSON () {\n return this.content.length ? this.content.map(function (n) { return n.toJSON(); }) : null\n};\n\n// :: (Schema, ?Object) → Fragment\n// Deserialize a fragment from its JSON representation.\nFragment.fromJSON = function fromJSON (schema, value) {\n if (!value) { return Fragment.empty }\n if (!Array.isArray(value)) { throw new RangeError(\"Invalid input for Fragment.fromJSON\") }\n return new Fragment(value.map(schema.nodeFromJSON))\n};\n\n// :: ([Node]) → Fragment\n// Build a fragment from an array of nodes. Ensures that adjacent\n// text nodes with the same marks are joined together.\nFragment.fromArray = function fromArray (array) {\n if (!array.length) { return Fragment.empty }\n var joined, size = 0;\n for (var i = 0; i < array.length; i++) {\n var node = array[i];\n size += node.nodeSize;\n if (i && node.isText && array[i - 1].sameMarkup(node)) {\n if (!joined) { joined = array.slice(0, i); }\n joined[joined.length - 1] = node.withText(joined[joined.length - 1].text + node.text);\n } else if (joined) {\n joined.push(node);\n }\n }\n return new Fragment(joined || array, size)\n};\n\n// :: (?union) → Fragment\n// Create a fragment from something that can be interpreted as a set\n// of nodes. For `null`, it returns the empty fragment. For a\n// fragment, the fragment itself. For a node or array of nodes, a\n// fragment containing those nodes.\nFragment.from = function from (nodes) {\n if (!nodes) { return Fragment.empty }\n if (nodes instanceof Fragment) { return nodes }\n if (Array.isArray(nodes)) { return this.fromArray(nodes) }\n if (nodes.attrs) { return new Fragment([nodes], nodes.nodeSize) }\n throw new RangeError(\"Can not convert \" + nodes + \" to a Fragment\" +\n (nodes.nodesBetween ? \" (looks like multiple versions of prosemirror-model were loaded)\" : \"\"))\n};\n\nObject.defineProperties( Fragment.prototype, prototypeAccessors );\n\nvar found = {index: 0, offset: 0};\nfunction retIndex(index, offset) {\n found.index = index;\n found.offset = offset;\n return found\n}\n\n// :: Fragment\n// An empty fragment. Intended to be reused whenever a node doesn't\n// contain anything (rather than allocating a new empty fragment for\n// each leaf node).\nFragment.empty = new Fragment([], 0);\n\nfunction compareDeep(a, b) {\n if (a === b) { return true }\n if (!(a && typeof a == \"object\") ||\n !(b && typeof b == \"object\")) { return false }\n var array = Array.isArray(a);\n if (Array.isArray(b) != array) { return false }\n if (array) {\n if (a.length != b.length) { return false }\n for (var i = 0; i < a.length; i++) { if (!compareDeep(a[i], b[i])) { return false } }\n } else {\n for (var p in a) { if (!(p in b) || !compareDeep(a[p], b[p])) { return false } }\n for (var p$1 in b) { if (!(p$1 in a)) { return false } }\n }\n return true\n}\n\n// ::- A mark is a piece of information that can be attached to a node,\n// such as it being emphasized, in code font, or a link. It has a type\n// and optionally a set of attributes that provide further information\n// (such as the target of the link). Marks are created through a\n// `Schema`, which controls which types exist and which\n// attributes they have.\nvar Mark = function Mark(type, attrs) {\n // :: MarkType\n // The type of this mark.\n this.type = type;\n // :: Object\n // The attributes associated with this mark.\n this.attrs = attrs;\n};\n\n// :: ([Mark]) → [Mark]\n// Given a set of marks, create a new set which contains this one as\n// well, in the right position. If this mark is already in the set,\n// the set itself is returned. If any marks that are set to be\n// [exclusive](#model.MarkSpec.excludes) with this mark are present,\n// those are replaced by this one.\nMark.prototype.addToSet = function addToSet (set) {\n var copy, placed = false;\n for (var i = 0; i < set.length; i++) {\n var other = set[i];\n if (this.eq(other)) { return set }\n if (this.type.excludes(other.type)) {\n if (!copy) { copy = set.slice(0, i); }\n } else if (other.type.excludes(this.type)) {\n return set\n } else {\n if (!placed && other.type.rank > this.type.rank) {\n if (!copy) { copy = set.slice(0, i); }\n copy.push(this);\n placed = true;\n }\n if (copy) { copy.push(other); }\n }\n }\n if (!copy) { copy = set.slice(); }\n if (!placed) { copy.push(this); }\n return copy\n};\n\n// :: ([Mark]) → [Mark]\n// Remove this mark from the given set, returning a new set. If this\n// mark is not in the set, the set itself is returned.\nMark.prototype.removeFromSet = function removeFromSet (set) {\n for (var i = 0; i < set.length; i++)\n { if (this.eq(set[i]))\n { return set.slice(0, i).concat(set.slice(i + 1)) } }\n return set\n};\n\n// :: ([Mark]) → bool\n// Test whether this mark is in the given set of marks.\nMark.prototype.isInSet = function isInSet (set) {\n for (var i = 0; i < set.length; i++)\n { if (this.eq(set[i])) { return true } }\n return false\n};\n\n// :: (Mark) → bool\n// Test whether this mark has the same type and attributes as\n// another mark.\nMark.prototype.eq = function eq (other) {\n return this == other ||\n (this.type == other.type && compareDeep(this.attrs, other.attrs))\n};\n\n// :: () → Object\n// Convert this mark to a JSON-serializeable representation.\nMark.prototype.toJSON = function toJSON () {\n var obj = {type: this.type.name};\n for (var _ in this.attrs) {\n obj.attrs = this.attrs;\n break\n }\n return obj\n};\n\n// :: (Schema, Object) → Mark\nMark.fromJSON = function fromJSON (schema, json) {\n if (!json) { throw new RangeError(\"Invalid input for Mark.fromJSON\") }\n var type = schema.marks[json.type];\n if (!type) { throw new RangeError((\"There is no mark type \" + (json.type) + \" in this schema\")) }\n return type.create(json.attrs)\n};\n\n// :: ([Mark], [Mark]) → bool\n// Test whether two sets of marks are identical.\nMark.sameSet = function sameSet (a, b) {\n if (a == b) { return true }\n if (a.length != b.length) { return false }\n for (var i = 0; i < a.length; i++)\n { if (!a[i].eq(b[i])) { return false } }\n return true\n};\n\n// :: (?union) → [Mark]\n// Create a properly sorted mark set from null, a single mark, or an\n// unsorted array of marks.\nMark.setFrom = function setFrom (marks) {\n if (!marks || marks.length == 0) { return Mark.none }\n if (marks instanceof Mark) { return [marks] }\n var copy = marks.slice();\n copy.sort(function (a, b) { return a.type.rank - b.type.rank; });\n return copy\n};\n\n// :: [Mark] The empty set of marks.\nMark.none = [];\n\n// ReplaceError:: class extends Error\n// Error type raised by [`Node.replace`](#model.Node.replace) when\n// given an invalid replacement.\n\nfunction ReplaceError(message) {\n var err = Error.call(this, message);\n err.__proto__ = ReplaceError.prototype;\n return err\n}\n\nReplaceError.prototype = Object.create(Error.prototype);\nReplaceError.prototype.constructor = ReplaceError;\nReplaceError.prototype.name = \"ReplaceError\";\n\n// ::- A slice represents a piece cut out of a larger document. It\n// stores not only a fragment, but also the depth up to which nodes on\n// both side are ‘open’ (cut through).\nvar Slice = function Slice(content, openStart, openEnd) {\n // :: Fragment The slice's content.\n this.content = content;\n // :: number The open depth at the start.\n this.openStart = openStart;\n // :: number The open depth at the end.\n this.openEnd = openEnd;\n};\n\nvar prototypeAccessors$1 = { size: { configurable: true } };\n\n// :: number\n// The size this slice would add when inserted into a document.\nprototypeAccessors$1.size.get = function () {\n return this.content.size - this.openStart - this.openEnd\n};\n\nSlice.prototype.insertAt = function insertAt (pos, fragment) {\n var content = insertInto(this.content, pos + this.openStart, fragment, null);\n return content && new Slice(content, this.openStart, this.openEnd)\n};\n\nSlice.prototype.removeBetween = function removeBetween (from, to) {\n return new Slice(removeRange(this.content, from + this.openStart, to + this.openStart), this.openStart, this.openEnd)\n};\n\n// :: (Slice) → bool\n// Tests whether this slice is equal to another slice.\nSlice.prototype.eq = function eq (other) {\n return this.content.eq(other.content) && this.openStart == other.openStart && this.openEnd == other.openEnd\n};\n\nSlice.prototype.toString = function toString () {\n return this.content + \"(\" + this.openStart + \",\" + this.openEnd + \")\"\n};\n\n// :: () → ?Object\n// Convert a slice to a JSON-serializable representation.\nSlice.prototype.toJSON = function toJSON () {\n if (!this.content.size) { return null }\n var json = {content: this.content.toJSON()};\n if (this.openStart > 0) { json.openStart = this.openStart; }\n if (this.openEnd > 0) { json.openEnd = this.openEnd; }\n return json\n};\n\n// :: (Schema, ?Object) → Slice\n// Deserialize a slice from its JSON representation.\nSlice.fromJSON = function fromJSON (schema, json) {\n if (!json) { return Slice.empty }\n var openStart = json.openStart || 0, openEnd = json.openEnd || 0;\n if (typeof openStart != \"number\" || typeof openEnd != \"number\")\n { throw new RangeError(\"Invalid input for Slice.fromJSON\") }\n return new Slice(Fragment.fromJSON(schema, json.content), openStart, openEnd)\n};\n\n// :: (Fragment, ?bool) → Slice\n// Create a slice from a fragment by taking the maximum possible\n// open value on both side of the fragment.\nSlice.maxOpen = function maxOpen (fragment, openIsolating) {\n if ( openIsolating === void 0 ) openIsolating=true;\n\n var openStart = 0, openEnd = 0;\n for (var n = fragment.firstChild; n && !n.isLeaf && (openIsolating || !n.type.spec.isolating); n = n.firstChild) { openStart++; }\n for (var n$1 = fragment.lastChild; n$1 && !n$1.isLeaf && (openIsolating || !n$1.type.spec.isolating); n$1 = n$1.lastChild) { openEnd++; }\n return new Slice(fragment, openStart, openEnd)\n};\n\nObject.defineProperties( Slice.prototype, prototypeAccessors$1 );\n\nfunction removeRange(content, from, to) {\n var ref = content.findIndex(from);\n var index = ref.index;\n var offset = ref.offset;\n var child = content.maybeChild(index);\n var ref$1 = content.findIndex(to);\n var indexTo = ref$1.index;\n var offsetTo = ref$1.offset;\n if (offset == from || child.isText) {\n if (offsetTo != to && !content.child(indexTo).isText) { throw new RangeError(\"Removing non-flat range\") }\n return content.cut(0, from).append(content.cut(to))\n }\n if (index != indexTo) { throw new RangeError(\"Removing non-flat range\") }\n return content.replaceChild(index, child.copy(removeRange(child.content, from - offset - 1, to - offset - 1)))\n}\n\nfunction insertInto(content, dist, insert, parent) {\n var ref = content.findIndex(dist);\n var index = ref.index;\n var offset = ref.offset;\n var child = content.maybeChild(index);\n if (offset == dist || child.isText) {\n if (parent && !parent.canReplace(index, index, insert)) { return null }\n return content.cut(0, dist).append(insert).append(content.cut(dist))\n }\n var inner = insertInto(child.content, dist - offset - 1, insert);\n return inner && content.replaceChild(index, child.copy(inner))\n}\n\n// :: Slice\n// The empty slice.\nSlice.empty = new Slice(Fragment.empty, 0, 0);\n\nfunction replace($from, $to, slice) {\n if (slice.openStart > $from.depth)\n { throw new ReplaceError(\"Inserted content deeper than insertion position\") }\n if ($from.depth - slice.openStart != $to.depth - slice.openEnd)\n { throw new ReplaceError(\"Inconsistent open depths\") }\n return replaceOuter($from, $to, slice, 0)\n}\n\nfunction replaceOuter($from, $to, slice, depth) {\n var index = $from.index(depth), node = $from.node(depth);\n if (index == $to.index(depth) && depth < $from.depth - slice.openStart) {\n var inner = replaceOuter($from, $to, slice, depth + 1);\n return node.copy(node.content.replaceChild(index, inner))\n } else if (!slice.content.size) {\n return close(node, replaceTwoWay($from, $to, depth))\n } else if (!slice.openStart && !slice.openEnd && $from.depth == depth && $to.depth == depth) { // Simple, flat case\n var parent = $from.parent, content = parent.content;\n return close(parent, content.cut(0, $from.parentOffset).append(slice.content).append(content.cut($to.parentOffset)))\n } else {\n var ref = prepareSliceForReplace(slice, $from);\n var start = ref.start;\n var end = ref.end;\n return close(node, replaceThreeWay($from, start, end, $to, depth))\n }\n}\n\nfunction checkJoin(main, sub) {\n if (!sub.type.compatibleContent(main.type))\n { throw new ReplaceError(\"Cannot join \" + sub.type.name + \" onto \" + main.type.name) }\n}\n\nfunction joinable($before, $after, depth) {\n var node = $before.node(depth);\n checkJoin(node, $after.node(depth));\n return node\n}\n\nfunction addNode(child, target) {\n var last = target.length - 1;\n if (last >= 0 && child.isText && child.sameMarkup(target[last]))\n { target[last] = child.withText(target[last].text + child.text); }\n else\n { target.push(child); }\n}\n\nfunction addRange($start, $end, depth, target) {\n var node = ($end || $start).node(depth);\n var startIndex = 0, endIndex = $end ? $end.index(depth) : node.childCount;\n if ($start) {\n startIndex = $start.index(depth);\n if ($start.depth > depth) {\n startIndex++;\n } else if ($start.textOffset) {\n addNode($start.nodeAfter, target);\n startIndex++;\n }\n }\n for (var i = startIndex; i < endIndex; i++) { addNode(node.child(i), target); }\n if ($end && $end.depth == depth && $end.textOffset)\n { addNode($end.nodeBefore, target); }\n}\n\nfunction close(node, content) {\n if (!node.type.validContent(content))\n { throw new ReplaceError(\"Invalid content for node \" + node.type.name) }\n return node.copy(content)\n}\n\nfunction replaceThreeWay($from, $start, $end, $to, depth) {\n var openStart = $from.depth > depth && joinable($from, $start, depth + 1);\n var openEnd = $to.depth > depth && joinable($end, $to, depth + 1);\n\n var content = [];\n addRange(null, $from, depth, content);\n if (openStart && openEnd && $start.index(depth) == $end.index(depth)) {\n checkJoin(openStart, openEnd);\n addNode(close(openStart, replaceThreeWay($from, $start, $end, $to, depth + 1)), content);\n } else {\n if (openStart)\n { addNode(close(openStart, replaceTwoWay($from, $start, depth + 1)), content); }\n addRange($start, $end, depth, content);\n if (openEnd)\n { addNode(close(openEnd, replaceTwoWay($end, $to, depth + 1)), content); }\n }\n addRange($to, null, depth, content);\n return new Fragment(content)\n}\n\nfunction replaceTwoWay($from, $to, depth) {\n var content = [];\n addRange(null, $from, depth, content);\n if ($from.depth > depth) {\n var type = joinable($from, $to, depth + 1);\n addNode(close(type, replaceTwoWay($from, $to, depth + 1)), content);\n }\n addRange($to, null, depth, content);\n return new Fragment(content)\n}\n\nfunction prepareSliceForReplace(slice, $along) {\n var extra = $along.depth - slice.openStart, parent = $along.node(extra);\n var node = parent.copy(slice.content);\n for (var i = extra - 1; i >= 0; i--)\n { node = $along.node(i).copy(Fragment.from(node)); }\n return {start: node.resolveNoCache(slice.openStart + extra),\n end: node.resolveNoCache(node.content.size - slice.openEnd - extra)}\n}\n\n// ::- You can [_resolve_](#model.Node.resolve) a position to get more\n// information about it. Objects of this class represent such a\n// resolved position, providing various pieces of context information,\n// and some helper methods.\n//\n// Throughout this interface, methods that take an optional `depth`\n// parameter will interpret undefined as `this.depth` and negative\n// numbers as `this.depth + value`.\nvar ResolvedPos = function ResolvedPos(pos, path, parentOffset) {\n // :: number The position that was resolved.\n this.pos = pos;\n this.path = path;\n // :: number\n // The number of levels the parent node is from the root. If this\n // position points directly into the root node, it is 0. If it\n // points into a top-level paragraph, 1, and so on.\n this.depth = path.length / 3 - 1;\n // :: number The offset this position has into its parent node.\n this.parentOffset = parentOffset;\n};\n\nvar prototypeAccessors$2 = { parent: { configurable: true },doc: { configurable: true },textOffset: { configurable: true },nodeAfter: { configurable: true },nodeBefore: { configurable: true } };\n\nResolvedPos.prototype.resolveDepth = function resolveDepth (val) {\n if (val == null) { return this.depth }\n if (val < 0) { return this.depth + val }\n return val\n};\n\n// :: Node\n// The parent node that the position points into. Note that even if\n// a position points into a text node, that node is not considered\n// the parent—text nodes are ‘flat’ in this model, and have no content.\nprototypeAccessors$2.parent.get = function () { return this.node(this.depth) };\n\n// :: Node\n// The root node in which the position was resolved.\nprototypeAccessors$2.doc.get = function () { return this.node(0) };\n\n// :: (?number) → Node\n// The ancestor node at the given level. `p.node(p.depth)` is the\n// same as `p.parent`.\nResolvedPos.prototype.node = function node (depth) { return this.path[this.resolveDepth(depth) * 3] };\n\n// :: (?number) → number\n// The index into the ancestor at the given level. If this points at\n// the 3rd node in the 2nd paragraph on the top level, for example,\n// `p.index(0)` is 1 and `p.index(1)` is 2.\nResolvedPos.prototype.index = function index (depth) { return this.path[this.resolveDepth(depth) * 3 + 1] };\n\n// :: (?number) → number\n// The index pointing after this position into the ancestor at the\n// given level.\nResolvedPos.prototype.indexAfter = function indexAfter (depth) {\n depth = this.resolveDepth(depth);\n return this.index(depth) + (depth == this.depth && !this.textOffset ? 0 : 1)\n};\n\n// :: (?number) → number\n// The (absolute) position at the start of the node at the given\n// level.\nResolvedPos.prototype.start = function start (depth) {\n depth = this.resolveDepth(depth);\n return depth == 0 ? 0 : this.path[depth * 3 - 1] + 1\n};\n\n// :: (?number) → number\n// The (absolute) position at the end of the node at the given\n// level.\nResolvedPos.prototype.end = function end (depth) {\n depth = this.resolveDepth(depth);\n return this.start(depth) + this.node(depth).content.size\n};\n\n// :: (?number) → number\n// The (absolute) position directly before the wrapping node at the\n// given level, or, when `depth` is `this.depth + 1`, the original\n// position.\nResolvedPos.prototype.before = function before (depth) {\n depth = this.resolveDepth(depth);\n if (!depth) { throw new RangeError(\"There is no position before the top-level node\") }\n return depth == this.depth + 1 ? this.pos : this.path[depth * 3 - 1]\n};\n\n// :: (?number) → number\n// The (absolute) position directly after the wrapping node at the\n// given level, or the original position when `depth` is `this.depth + 1`.\nResolvedPos.prototype.after = function after (depth) {\n depth = this.resolveDepth(depth);\n if (!depth) { throw new RangeError(\"There is no position after the top-level node\") }\n return depth == this.depth + 1 ? this.pos : this.path[depth * 3 - 1] + this.path[depth * 3].nodeSize\n};\n\n// :: number\n// When this position points into a text node, this returns the\n// distance between the position and the start of the text node.\n// Will be zero for positions that point between nodes.\nprototypeAccessors$2.textOffset.get = function () { return this.pos - this.path[this.path.length - 1] };\n\n// :: ?Node\n// Get the node directly after the position, if any. If the position\n// points into a text node, only the part of that node after the\n// position is returned.\nprototypeAccessors$2.nodeAfter.get = function () {\n var parent = this.parent, index = this.index(this.depth);\n if (index == parent.childCount) { return null }\n var dOff = this.pos - this.path[this.path.length - 1], child = parent.child(index);\n return dOff ? parent.child(index).cut(dOff) : child\n};\n\n// :: ?Node\n// Get the node directly before the position, if any. If the\n// position points into a text node, only the part of that node\n// before the position is returned.\nprototypeAccessors$2.nodeBefore.get = function () {\n var index = this.index(this.depth);\n var dOff = this.pos - this.path[this.path.length - 1];\n if (dOff) { return this.parent.child(index).cut(0, dOff) }\n return index == 0 ? null : this.parent.child(index - 1)\n};\n\n// :: (number, ?number) → number\n// Get the position at the given index in the parent node at the\n// given depth (which defaults to `this.depth`).\nResolvedPos.prototype.posAtIndex = function posAtIndex (index, depth) {\n depth = this.resolveDepth(depth);\n var node = this.path[depth * 3], pos = depth == 0 ? 0 : this.path[depth * 3 - 1] + 1;\n for (var i = 0; i < index; i++) { pos += node.child(i).nodeSize; }\n return pos\n};\n\n// :: () → [Mark]\n// Get the marks at this position, factoring in the surrounding\n// marks' [`inclusive`](#model.MarkSpec.inclusive) property. If the\n// position is at the start of a non-empty node, the marks of the\n// node after it (if any) are returned.\nResolvedPos.prototype.marks = function marks () {\n var parent = this.parent, index = this.index();\n\n // In an empty parent, return the empty array\n if (parent.content.size == 0) { return Mark.none }\n\n // When inside a text node, just return the text node's marks\n if (this.textOffset) { return parent.child(index).marks }\n\n var main = parent.maybeChild(index - 1), other = parent.maybeChild(index);\n // If the `after` flag is true of there is no node before, make\n // the node after this position the main reference.\n if (!main) { var tmp = main; main = other; other = tmp; }\n\n // Use all marks in the main node, except those that have\n // `inclusive` set to false and are not present in the other node.\n var marks = main.marks;\n for (var i = 0; i < marks.length; i++)\n { if (marks[i].type.spec.inclusive === false && (!other || !marks[i].isInSet(other.marks)))\n { marks = marks[i--].removeFromSet(marks); } }\n\n return marks\n};\n\n// :: (ResolvedPos) → ?[Mark]\n// Get the marks after the current position, if any, except those\n// that are non-inclusive and not present at position `$end`. This\n// is mostly useful for getting the set of marks to preserve after a\n// deletion. Will return `null` if this position is at the end of\n// its parent node or its parent node isn't a textblock (in which\n// case no marks should be preserved).\nResolvedPos.prototype.marksAcross = function marksAcross ($end) {\n var after = this.parent.maybeChild(this.index());\n if (!after || !after.isInline) { return null }\n\n var marks = after.marks, next = $end.parent.maybeChild($end.index());\n for (var i = 0; i < marks.length; i++)\n { if (marks[i].type.spec.inclusive === false && (!next || !marks[i].isInSet(next.marks)))\n { marks = marks[i--].removeFromSet(marks); } }\n return marks\n};\n\n// :: (number) → number\n// The depth up to which this position and the given (non-resolved)\n// position share the same parent nodes.\nResolvedPos.prototype.sharedDepth = function sharedDepth (pos) {\n for (var depth = this.depth; depth > 0; depth--)\n { if (this.start(depth) <= pos && this.end(depth) >= pos) { return depth } }\n return 0\n};\n\n// :: (?ResolvedPos, ?(Node) → bool) → ?NodeRange\n// Returns a range based on the place where this position and the\n// given position diverge around block content. If both point into\n// the same textblock, for example, a range around that textblock\n// will be returned. If they point into different blocks, the range\n// around those blocks in their shared ancestor is returned. You can\n// pass in an optional predicate that will be called with a parent\n// node to see if a range into that parent is acceptable.\nResolvedPos.prototype.blockRange = function blockRange (other, pred) {\n if ( other === void 0 ) other = this;\n\n if (other.pos < this.pos) { return other.blockRange(this) }\n for (var d = this.depth - (this.parent.inlineContent || this.pos == other.pos ? 1 : 0); d >= 0; d--)\n { if (other.pos <= this.end(d) && (!pred || pred(this.node(d))))\n { return new NodeRange(this, other, d) } }\n};\n\n// :: (ResolvedPos) → bool\n// Query whether the given position shares the same parent node.\nResolvedPos.prototype.sameParent = function sameParent (other) {\n return this.pos - this.parentOffset == other.pos - other.parentOffset\n};\n\n// :: (ResolvedPos) → ResolvedPos\n// Return the greater of this and the given position.\nResolvedPos.prototype.max = function max (other) {\n return other.pos > this.pos ? other : this\n};\n\n// :: (ResolvedPos) → ResolvedPos\n// Return the smaller of this and the given position.\nResolvedPos.prototype.min = function min (other) {\n return other.pos < this.pos ? other : this\n};\n\nResolvedPos.prototype.toString = function toString () {\n var str = \"\";\n for (var i = 1; i <= this.depth; i++)\n { str += (str ? \"/\" : \"\") + this.node(i).type.name + \"_\" + this.index(i - 1); }\n return str + \":\" + this.parentOffset\n};\n\nResolvedPos.resolve = function resolve (doc, pos) {\n if (!(pos >= 0 && pos <= doc.content.size)) { throw new RangeError(\"Position \" + pos + \" out of range\") }\n var path = [];\n var start = 0, parentOffset = pos;\n for (var node = doc;;) {\n var ref = node.content.findIndex(parentOffset);\n var index = ref.index;\n var offset = ref.offset;\n var rem = parentOffset - offset;\n path.push(node, index, start + offset);\n if (!rem) { break }\n node = node.child(index);\n if (node.isText) { break }\n parentOffset = rem - 1;\n start += offset + 1;\n }\n return new ResolvedPos(pos, path, parentOffset)\n};\n\nResolvedPos.resolveCached = function resolveCached (doc, pos) {\n for (var i = 0; i < resolveCache.length; i++) {\n var cached = resolveCache[i];\n if (cached.pos == pos && cached.doc == doc) { return cached }\n }\n var result = resolveCache[resolveCachePos] = ResolvedPos.resolve(doc, pos);\n resolveCachePos = (resolveCachePos + 1) % resolveCacheSize;\n return result\n};\n\nObject.defineProperties( ResolvedPos.prototype, prototypeAccessors$2 );\n\nvar resolveCache = [], resolveCachePos = 0, resolveCacheSize = 12;\n\n// ::- Represents a flat range of content, i.e. one that starts and\n// ends in the same node.\nvar NodeRange = function NodeRange($from, $to, depth) {\n // :: ResolvedPos A resolved position along the start of the\n // content. May have a `depth` greater than this object's `depth`\n // property, since these are the positions that were used to\n // compute the range, not re-resolved positions directly at its\n // boundaries.\n this.$from = $from;\n // :: ResolvedPos A position along the end of the content. See\n // caveat for [`$from`](#model.NodeRange.$from).\n this.$to = $to;\n // :: number The depth of the node that this range points into.\n this.depth = depth;\n};\n\nvar prototypeAccessors$1$1 = { start: { configurable: true },end: { configurable: true },parent: { configurable: true },startIndex: { configurable: true },endIndex: { configurable: true } };\n\n// :: number The position at the start of the range.\nprototypeAccessors$1$1.start.get = function () { return this.$from.before(this.depth + 1) };\n// :: number The position at the end of the range.\nprototypeAccessors$1$1.end.get = function () { return this.$to.after(this.depth + 1) };\n\n// :: Node The parent node that the range points into.\nprototypeAccessors$1$1.parent.get = function () { return this.$from.node(this.depth) };\n// :: number The start index of the range in the parent node.\nprototypeAccessors$1$1.startIndex.get = function () { return this.$from.index(this.depth) };\n// :: number The end index of the range in the parent node.\nprototypeAccessors$1$1.endIndex.get = function () { return this.$to.indexAfter(this.depth) };\n\nObject.defineProperties( NodeRange.prototype, prototypeAccessors$1$1 );\n\nvar emptyAttrs = Object.create(null);\n\n// ::- This class represents a node in the tree that makes up a\n// ProseMirror document. So a document is an instance of `Node`, with\n// children that are also instances of `Node`.\n//\n// Nodes are persistent data structures. Instead of changing them, you\n// create new ones with the content you want. Old ones keep pointing\n// at the old document shape. This is made cheaper by sharing\n// structure between the old and new data as much as possible, which a\n// tree shape like this (without back pointers) makes easy.\n//\n// **Do not** directly mutate the properties of a `Node` object. See\n// [the guide](/docs/guide/#doc) for more information.\nvar Node = function Node(type, attrs, content, marks) {\n // :: NodeType\n // The type of node that this is.\n this.type = type;\n\n // :: Object\n // An object mapping attribute names to values. The kind of\n // attributes allowed and required are\n // [determined](#model.NodeSpec.attrs) by the node type.\n this.attrs = attrs;\n\n // :: Fragment\n // A container holding the node's children.\n this.content = content || Fragment.empty;\n\n // :: [Mark]\n // The marks (things like whether it is emphasized or part of a\n // link) applied to this node.\n this.marks = marks || Mark.none;\n};\n\nvar prototypeAccessors$3 = { nodeSize: { configurable: true },childCount: { configurable: true },textContent: { configurable: true },firstChild: { configurable: true },lastChild: { configurable: true },isBlock: { configurable: true },isTextblock: { configurable: true },inlineContent: { configurable: true },isInline: { configurable: true },isText: { configurable: true },isLeaf: { configurable: true },isAtom: { configurable: true } };\n\n// text:: ?string\n// For text nodes, this contains the node's text content.\n\n// :: number\n// The size of this node, as defined by the integer-based [indexing\n// scheme](/docs/guide/#doc.indexing). For text nodes, this is the\n// amount of characters. For other leaf nodes, it is one. For\n// non-leaf nodes, it is the size of the content plus two (the start\n// and end token).\nprototypeAccessors$3.nodeSize.get = function () { return this.isLeaf ? 1 : 2 + this.content.size };\n\n// :: number\n// The number of children that the node has.\nprototypeAccessors$3.childCount.get = function () { return this.content.childCount };\n\n// :: (number) → Node\n// Get the child node at the given index. Raises an error when the\n// index is out of range.\nNode.prototype.child = function child (index) { return this.content.child(index) };\n\n// :: (number) → ?Node\n// Get the child node at the given index, if it exists.\nNode.prototype.maybeChild = function maybeChild (index) { return this.content.maybeChild(index) };\n\n// :: ((node: Node, offset: number, index: number))\n// Call `f` for every child node, passing the node, its offset\n// into this parent node, and its index.\nNode.prototype.forEach = function forEach (f) { this.content.forEach(f); };\n\n// :: (number, number, (node: Node, pos: number, parent: Node, index: number) → ?bool, ?number)\n// Invoke a callback for all descendant nodes recursively between\n// the given two positions that are relative to start of this node's\n// content. The callback is invoked with the node, its\n// parent-relative position, its parent node, and its child index.\n// When the callback returns false for a given node, that node's\n// children will not be recursed over. The last parameter can be\n// used to specify a starting position to count from.\nNode.prototype.nodesBetween = function nodesBetween (from, to, f, startPos) {\n if ( startPos === void 0 ) startPos = 0;\n\n this.content.nodesBetween(from, to, f, startPos, this);\n};\n\n// :: ((node: Node, pos: number, parent: Node) → ?bool)\n// Call the given callback for every descendant node. Doesn't\n// descend into a node when the callback returns `false`.\nNode.prototype.descendants = function descendants (f) {\n this.nodesBetween(0, this.content.size, f);\n};\n\n// :: string\n// Concatenates all the text nodes found in this fragment and its\n// children.\nprototypeAccessors$3.textContent.get = function () { return this.textBetween(0, this.content.size, \"\") };\n\n// :: (number, number, ?string, ?string) → string\n// Get all text between positions `from` and `to`. When\n// `blockSeparator` is given, it will be inserted whenever a new\n// block node is started. When `leafText` is given, it'll be\n// inserted for every non-text leaf node encountered.\nNode.prototype.textBetween = function textBetween (from, to, blockSeparator, leafText) {\n return this.content.textBetween(from, to, blockSeparator, leafText)\n};\n\n// :: ?Node\n// Returns this node's first child, or `null` if there are no\n// children.\nprototypeAccessors$3.firstChild.get = function () { return this.content.firstChild };\n\n// :: ?Node\n// Returns this node's last child, or `null` if there are no\n// children.\nprototypeAccessors$3.lastChild.get = function () { return this.content.lastChild };\n\n// :: (Node) → bool\n// Test whether two nodes represent the same piece of document.\nNode.prototype.eq = function eq (other) {\n return this == other || (this.sameMarkup(other) && this.content.eq(other.content))\n};\n\n// :: (Node) → bool\n// Compare the markup (type, attributes, and marks) of this node to\n// those of another. Returns `true` if both have the same markup.\nNode.prototype.sameMarkup = function sameMarkup (other) {\n return this.hasMarkup(other.type, other.attrs, other.marks)\n};\n\n// :: (NodeType, ?Object, ?[Mark]) → bool\n// Check whether this node's markup correspond to the given type,\n// attributes, and marks.\nNode.prototype.hasMarkup = function hasMarkup (type, attrs, marks) {\n return this.type == type &&\n compareDeep(this.attrs, attrs || type.defaultAttrs || emptyAttrs) &&\n Mark.sameSet(this.marks, marks || Mark.none)\n};\n\n// :: (?Fragment) → Node\n// Create a new node with the same markup as this node, containing\n// the given content (or empty, if no content is given).\nNode.prototype.copy = function copy (content) {\n if ( content === void 0 ) content = null;\n\n if (content == this.content) { return this }\n return new this.constructor(this.type, this.attrs, content, this.marks)\n};\n\n// :: ([Mark]) → Node\n// Create a copy of this node, with the given set of marks instead\n// of the node's own marks.\nNode.prototype.mark = function mark (marks) {\n return marks == this.marks ? this : new this.constructor(this.type, this.attrs, this.content, marks)\n};\n\n// :: (number, ?number) → Node\n// Create a copy of this node with only the content between the\n// given positions. If `to` is not given, it defaults to the end of\n// the node.\nNode.prototype.cut = function cut (from, to) {\n if (from == 0 && to == this.content.size) { return this }\n return this.copy(this.content.cut(from, to))\n};\n\n// :: (number, ?number) → Slice\n// Cut out the part of the document between the given positions, and\n// return it as a `Slice` object.\nNode.prototype.slice = function slice (from, to, includeParents) {\n if ( to === void 0 ) to = this.content.size;\n if ( includeParents === void 0 ) includeParents = false;\n\n if (from == to) { return Slice.empty }\n\n var $from = this.resolve(from), $to = this.resolve(to);\n var depth = includeParents ? 0 : $from.sharedDepth(to);\n var start = $from.start(depth), node = $from.node(depth);\n var content = node.content.cut($from.pos - start, $to.pos - start);\n return new Slice(content, $from.depth - depth, $to.depth - depth)\n};\n\n// :: (number, number, Slice) → Node\n// Replace the part of the document between the given positions with\n// the given slice. The slice must 'fit', meaning its open sides\n// must be able to connect to the surrounding content, and its\n// content nodes must be valid children for the node they are placed\n// into. If any of this is violated, an error of type\n// [`ReplaceError`](#model.ReplaceError) is thrown.\nNode.prototype.replace = function replace$1 (from, to, slice) {\n return replace(this.resolve(from), this.resolve(to), slice)\n};\n\n// :: (number) → ?Node\n// Find the node directly after the given position.\nNode.prototype.nodeAt = function nodeAt (pos) {\n for (var node = this;;) {\n var ref = node.content.findIndex(pos);\n var index = ref.index;\n var offset = ref.offset;\n node = node.maybeChild(index);\n if (!node) { return null }\n if (offset == pos || node.isText) { return node }\n pos -= offset + 1;\n }\n};\n\n// :: (number) → {node: ?Node, index: number, offset: number}\n// Find the (direct) child node after the given offset, if any,\n// and return it along with its index and offset relative to this\n// node.\nNode.prototype.childAfter = function childAfter (pos) {\n var ref = this.content.findIndex(pos);\n var index = ref.index;\n var offset = ref.offset;\n return {node: this.content.maybeChild(index), index: index, offset: offset}\n};\n\n// :: (number) → {node: ?Node, index: number, offset: number}\n// Find the (direct) child node before the given offset, if any,\n// and return it along with its index and offset relative to this\n// node.\nNode.prototype.childBefore = function childBefore (pos) {\n if (pos == 0) { return {node: null, index: 0, offset: 0} }\n var ref = this.content.findIndex(pos);\n var index = ref.index;\n var offset = ref.offset;\n if (offset < pos) { return {node: this.content.child(index), index: index, offset: offset} }\n var node = this.content.child(index - 1);\n return {node: node, index: index - 1, offset: offset - node.nodeSize}\n};\n\n// :: (number) → ResolvedPos\n// Resolve the given position in the document, returning an\n// [object](#model.ResolvedPos) with information about its context.\nNode.prototype.resolve = function resolve (pos) { return ResolvedPos.resolveCached(this, pos) };\n\nNode.prototype.resolveNoCache = function resolveNoCache (pos) { return ResolvedPos.resolve(this, pos) };\n\n// :: (number, number, union) → bool\n// Test whether a given mark or mark type occurs in this document\n// between the two given positions.\nNode.prototype.rangeHasMark = function rangeHasMark (from, to, type) {\n var found = false;\n if (to > from) { this.nodesBetween(from, to, function (node) {\n if (type.isInSet(node.marks)) { found = true; }\n return !found\n }); }\n return found\n};\n\n// :: bool\n// True when this is a block (non-inline node)\nprototypeAccessors$3.isBlock.get = function () { return this.type.isBlock };\n\n// :: bool\n// True when this is a textblock node, a block node with inline\n// content.\nprototypeAccessors$3.isTextblock.get = function () { return this.type.isTextblock };\n\n// :: bool\n// True when this node allows inline content.\nprototypeAccessors$3.inlineContent.get = function () { return this.type.inlineContent };\n\n// :: bool\n// True when this is an inline node (a text node or a node that can\n// appear among text).\nprototypeAccessors$3.isInline.get = function () { return this.type.isInline };\n\n// :: bool\n// True when this is a text node.\nprototypeAccessors$3.isText.get = function () { return this.type.isText };\n\n// :: bool\n// True when this is a leaf node.\nprototypeAccessors$3.isLeaf.get = function () { return this.type.isLeaf };\n\n// :: bool\n// True when this is an atom, i.e. when it does not have directly\n// editable content. This is usually the same as `isLeaf`, but can\n// be configured with the [`atom` property](#model.NodeSpec.atom) on\n// a node's spec (typically used when the node is displayed as an\n// uneditable [node view](#view.NodeView)).\nprototypeAccessors$3.isAtom.get = function () { return this.type.isAtom };\n\n// :: () → string\n// Return a string representation of this node for debugging\n// purposes.\nNode.prototype.toString = function toString () {\n if (this.type.spec.toDebugString) { return this.type.spec.toDebugString(this) }\n var name = this.type.name;\n if (this.content.size)\n { name += \"(\" + this.content.toStringInner() + \")\"; }\n return wrapMarks(this.marks, name)\n};\n\n// :: (number) → ContentMatch\n// Get the content match in this node at the given index.\nNode.prototype.contentMatchAt = function contentMatchAt (index) {\n var match = this.type.contentMatch.matchFragment(this.content, 0, index);\n if (!match) { throw new Error(\"Called contentMatchAt on a node with invalid content\") }\n return match\n};\n\n// :: (number, number, ?Fragment, ?number, ?number) → bool\n// Test whether replacing the range between `from` and `to` (by\n// child index) with the given replacement fragment (which defaults\n// to the empty fragment) would leave the node's content valid. You\n// can optionally pass `start` and `end` indices into the\n// replacement fragment.\nNode.prototype.canReplace = function canReplace (from, to, replacement, start, end) {\n if ( replacement === void 0 ) replacement = Fragment.empty;\n if ( start === void 0 ) start = 0;\n if ( end === void 0 ) end = replacement.childCount;\n\n var one = this.contentMatchAt(from).matchFragment(replacement, start, end);\n var two = one && one.matchFragment(this.content, to);\n if (!two || !two.validEnd) { return false }\n for (var i = start; i < end; i++) { if (!this.type.allowsMarks(replacement.child(i).marks)) { return false } }\n return true\n};\n\n// :: (number, number, NodeType, ?[Mark]) → bool\n// Test whether replacing the range `from` to `to` (by index) with a\n// node of the given type would leave the node's content valid.\nNode.prototype.canReplaceWith = function canReplaceWith (from, to, type, marks) {\n if (marks && !this.type.allowsMarks(marks)) { return false }\n var start = this.contentMatchAt(from).matchType(type);\n var end = start && start.matchFragment(this.content, to);\n return end ? end.validEnd : false\n};\n\n// :: (Node) → bool\n// Test whether the given node's content could be appended to this\n// node. If that node is empty, this will only return true if there\n// is at least one node type that can appear in both nodes (to avoid\n// merging completely incompatible nodes).\nNode.prototype.canAppend = function canAppend (other) {\n if (other.content.size) { return this.canReplace(this.childCount, this.childCount, other.content) }\n else { return this.type.compatibleContent(other.type) }\n};\n\n// :: ()\n// Check whether this node and its descendants conform to the\n// schema, and raise error when they do not.\nNode.prototype.check = function check () {\n if (!this.type.validContent(this.content))\n { throw new RangeError((\"Invalid content for node \" + (this.type.name) + \": \" + (this.content.toString().slice(0, 50)))) }\n this.content.forEach(function (node) { return node.check(); });\n};\n\n// :: () → Object\n// Return a JSON-serializeable representation of this node.\nNode.prototype.toJSON = function toJSON () {\n var obj = {type: this.type.name};\n for (var _ in this.attrs) {\n obj.attrs = this.attrs;\n break\n }\n if (this.content.size)\n { obj.content = this.content.toJSON(); }\n if (this.marks.length)\n { obj.marks = this.marks.map(function (n) { return n.toJSON(); }); }\n return obj\n};\n\n// :: (Schema, Object) → Node\n// Deserialize a node from its JSON representation.\nNode.fromJSON = function fromJSON (schema, json) {\n if (!json) { throw new RangeError(\"Invalid input for Node.fromJSON\") }\n var marks = null;\n if (json.marks) {\n if (!Array.isArray(json.marks)) { throw new RangeError(\"Invalid mark data for Node.fromJSON\") }\n marks = json.marks.map(schema.markFromJSON);\n }\n if (json.type == \"text\") {\n if (typeof json.text != \"string\") { throw new RangeError(\"Invalid text node in JSON\") }\n return schema.text(json.text, marks)\n }\n var content = Fragment.fromJSON(schema, json.content);\n return schema.nodeType(json.type).create(json.attrs, content, marks)\n};\n\nObject.defineProperties( Node.prototype, prototypeAccessors$3 );\n\nvar TextNode = /*@__PURE__*/(function (Node) {\n function TextNode(type, attrs, content, marks) {\n Node.call(this, type, attrs, null, marks);\n\n if (!content) { throw new RangeError(\"Empty text nodes are not allowed\") }\n\n this.text = content;\n }\n\n if ( Node ) TextNode.__proto__ = Node;\n TextNode.prototype = Object.create( Node && Node.prototype );\n TextNode.prototype.constructor = TextNode;\n\n var prototypeAccessors$1 = { textContent: { configurable: true },nodeSize: { configurable: true } };\n\n TextNode.prototype.toString = function toString () {\n if (this.type.spec.toDebugString) { return this.type.spec.toDebugString(this) }\n return wrapMarks(this.marks, JSON.stringify(this.text))\n };\n\n prototypeAccessors$1.textContent.get = function () { return this.text };\n\n TextNode.prototype.textBetween = function textBetween (from, to) { return this.text.slice(from, to) };\n\n prototypeAccessors$1.nodeSize.get = function () { return this.text.length };\n\n TextNode.prototype.mark = function mark (marks) {\n return marks == this.marks ? this : new TextNode(this.type, this.attrs, this.text, marks)\n };\n\n TextNode.prototype.withText = function withText (text) {\n if (text == this.text) { return this }\n return new TextNode(this.type, this.attrs, text, this.marks)\n };\n\n TextNode.prototype.cut = function cut (from, to) {\n if ( from === void 0 ) from = 0;\n if ( to === void 0 ) to = this.text.length;\n\n if (from == 0 && to == this.text.length) { return this }\n return this.withText(this.text.slice(from, to))\n };\n\n TextNode.prototype.eq = function eq (other) {\n return this.sameMarkup(other) && this.text == other.text\n };\n\n TextNode.prototype.toJSON = function toJSON () {\n var base = Node.prototype.toJSON.call(this);\n base.text = this.text;\n return base\n };\n\n Object.defineProperties( TextNode.prototype, prototypeAccessors$1 );\n\n return TextNode;\n}(Node));\n\nfunction wrapMarks(marks, str) {\n for (var i = marks.length - 1; i >= 0; i--)\n { str = marks[i].type.name + \"(\" + str + \")\"; }\n return str\n}\n\n// ::- Instances of this class represent a match state of a node\n// type's [content expression](#model.NodeSpec.content), and can be\n// used to find out whether further content matches here, and whether\n// a given position is a valid end of the node.\nvar ContentMatch = function ContentMatch(validEnd) {\n // :: bool\n // True when this match state represents a valid end of the node.\n this.validEnd = validEnd;\n this.next = [];\n this.wrapCache = [];\n};\n\nvar prototypeAccessors$4 = { inlineContent: { configurable: true },defaultType: { configurable: true },edgeCount: { configurable: true } };\n\nContentMatch.parse = function parse (string, nodeTypes) {\n var stream = new TokenStream(string, nodeTypes);\n if (stream.next == null) { return ContentMatch.empty }\n var expr = parseExpr(stream);\n if (stream.next) { stream.err(\"Unexpected trailing text\"); }\n var match = dfa(nfa(expr));\n checkForDeadEnds(match, stream);\n return match\n};\n\n// :: (NodeType) → ?ContentMatch\n// Match a node type, returning a match after that node if\n// successful.\nContentMatch.prototype.matchType = function matchType (type) {\n for (var i = 0; i < this.next.length; i += 2)\n { if (this.next[i] == type) { return this.next[i + 1] } }\n return null\n};\n\n// :: (Fragment, ?number, ?number) → ?ContentMatch\n// Try to match a fragment. Returns the resulting match when\n// successful.\nContentMatch.prototype.matchFragment = function matchFragment (frag, start, end) {\n if ( start === void 0 ) start = 0;\n if ( end === void 0 ) end = frag.childCount;\n\n var cur = this;\n for (var i = start; cur && i < end; i++)\n { cur = cur.matchType(frag.child(i).type); }\n return cur\n};\n\nprototypeAccessors$4.inlineContent.get = function () {\n var first = this.next[0];\n return first ? first.isInline : false\n};\n\n// :: ?NodeType\n// Get the first matching node type at this match position that can\n// be generated.\nprototypeAccessors$4.defaultType.get = function () {\n for (var i = 0; i < this.next.length; i += 2) {\n var type = this.next[i];\n if (!(type.isText || type.hasRequiredAttrs())) { return type }\n }\n};\n\nContentMatch.prototype.compatible = function compatible (other) {\n for (var i = 0; i < this.next.length; i += 2)\n { for (var j = 0; j < other.next.length; j += 2)\n { if (this.next[i] == other.next[j]) { return true } } }\n return false\n};\n\n// :: (Fragment, bool, ?number) → ?Fragment\n// Try to match the given fragment, and if that fails, see if it can\n// be made to match by inserting nodes in front of it. When\n// successful, return a fragment of inserted nodes (which may be\n// empty if nothing had to be inserted). When `toEnd` is true, only\n// return a fragment if the resulting match goes to the end of the\n// content expression.\nContentMatch.prototype.fillBefore = function fillBefore (after, toEnd, startIndex) {\n if ( toEnd === void 0 ) toEnd = false;\n if ( startIndex === void 0 ) startIndex = 0;\n\n var seen = [this];\n function search(match, types) {\n var finished = match.matchFragment(after, startIndex);\n if (finished && (!toEnd || finished.validEnd))\n { return Fragment.from(types.map(function (tp) { return tp.createAndFill(); })) }\n\n for (var i = 0; i < match.next.length; i += 2) {\n var type = match.next[i], next = match.next[i + 1];\n if (!(type.isText || type.hasRequiredAttrs()) && seen.indexOf(next) == -1) {\n seen.push(next);\n var found = search(next, types.concat(type));\n if (found) { return found }\n }\n }\n }\n\n return search(this, [])\n};\n\n// :: (NodeType) → ?[NodeType]\n// Find a set of wrapping node types that would allow a node of the\n// given type to appear at this position. The result may be empty\n// (when it fits directly) and will be null when no such wrapping\n// exists.\nContentMatch.prototype.findWrapping = function findWrapping (target) {\n for (var i = 0; i < this.wrapCache.length; i += 2)\n { if (this.wrapCache[i] == target) { return this.wrapCache[i + 1] } }\n var computed = this.computeWrapping(target);\n this.wrapCache.push(target, computed);\n return computed\n};\n\nContentMatch.prototype.computeWrapping = function computeWrapping (target) {\n var seen = Object.create(null), active = [{match: this, type: null, via: null}];\n while (active.length) {\n var current = active.shift(), match = current.match;\n if (match.matchType(target)) {\n var result = [];\n for (var obj = current; obj.type; obj = obj.via)\n { result.push(obj.type); }\n return result.reverse()\n }\n for (var i = 0; i < match.next.length; i += 2) {\n var type = match.next[i];\n if (!type.isLeaf && !type.hasRequiredAttrs() && !(type.name in seen) && (!current.type || match.next[i + 1].validEnd)) {\n active.push({match: type.contentMatch, type: type, via: current});\n seen[type.name] = true;\n }\n }\n }\n};\n\n// :: number\n// The number of outgoing edges this node has in the finite\n// automaton that describes the content expression.\nprototypeAccessors$4.edgeCount.get = function () {\n return this.next.length >> 1\n};\n\n// :: (number) → {type: NodeType, next: ContentMatch}\n// Get the _n_th outgoing edge from this node in the finite\n// automaton that describes the content expression.\nContentMatch.prototype.edge = function edge (n) {\n var i = n << 1;\n if (i >= this.next.length) { throw new RangeError((\"There's no \" + n + \"th edge in this content match\")) }\n return {type: this.next[i], next: this.next[i + 1]}\n};\n\nContentMatch.prototype.toString = function toString () {\n var seen = [];\n function scan(m) {\n seen.push(m);\n for (var i = 1; i < m.next.length; i += 2)\n { if (seen.indexOf(m.next[i]) == -1) { scan(m.next[i]); } }\n }\n scan(this);\n return seen.map(function (m, i) {\n var out = i + (m.validEnd ? \"*\" : \" \") + \" \";\n for (var i$1 = 0; i$1 < m.next.length; i$1 += 2)\n { out += (i$1 ? \", \" : \"\") + m.next[i$1].name + \"->\" + seen.indexOf(m.next[i$1 + 1]); }\n return out\n }).join(\"\\n\")\n};\n\nObject.defineProperties( ContentMatch.prototype, prototypeAccessors$4 );\n\nContentMatch.empty = new ContentMatch(true);\n\nvar TokenStream = function TokenStream(string, nodeTypes) {\n this.string = string;\n this.nodeTypes = nodeTypes;\n this.inline = null;\n this.pos = 0;\n this.tokens = string.split(/\\s*(?=\\b|\\W|$)/);\n if (this.tokens[this.tokens.length - 1] == \"\") { this.tokens.pop(); }\n if (this.tokens[0] == \"\") { this.tokens.shift(); }\n};\n\nvar prototypeAccessors$1$2 = { next: { configurable: true } };\n\nprototypeAccessors$1$2.next.get = function () { return this.tokens[this.pos] };\n\nTokenStream.prototype.eat = function eat (tok) { return this.next == tok && (this.pos++ || true) };\n\nTokenStream.prototype.err = function err (str) { throw new SyntaxError(str + \" (in content expression '\" + this.string + \"')\") };\n\nObject.defineProperties( TokenStream.prototype, prototypeAccessors$1$2 );\n\nfunction parseExpr(stream) {\n var exprs = [];\n do { exprs.push(parseExprSeq(stream)); }\n while (stream.eat(\"|\"))\n return exprs.length == 1 ? exprs[0] : {type: \"choice\", exprs: exprs}\n}\n\nfunction parseExprSeq(stream) {\n var exprs = [];\n do { exprs.push(parseExprSubscript(stream)); }\n while (stream.next && stream.next != \")\" && stream.next != \"|\")\n return exprs.length == 1 ? exprs[0] : {type: \"seq\", exprs: exprs}\n}\n\nfunction parseExprSubscript(stream) {\n var expr = parseExprAtom(stream);\n for (;;) {\n if (stream.eat(\"+\"))\n { expr = {type: \"plus\", expr: expr}; }\n else if (stream.eat(\"*\"))\n { expr = {type: \"star\", expr: expr}; }\n else if (stream.eat(\"?\"))\n { expr = {type: \"opt\", expr: expr}; }\n else if (stream.eat(\"{\"))\n { expr = parseExprRange(stream, expr); }\n else { break }\n }\n return expr\n}\n\nfunction parseNum(stream) {\n if (/\\D/.test(stream.next)) { stream.err(\"Expected number, got '\" + stream.next + \"'\"); }\n var result = Number(stream.next);\n stream.pos++;\n return result\n}\n\nfunction parseExprRange(stream, expr) {\n var min = parseNum(stream), max = min;\n if (stream.eat(\",\")) {\n if (stream.next != \"}\") { max = parseNum(stream); }\n else { max = -1; }\n }\n if (!stream.eat(\"}\")) { stream.err(\"Unclosed braced range\"); }\n return {type: \"range\", min: min, max: max, expr: expr}\n}\n\nfunction resolveName(stream, name) {\n var types = stream.nodeTypes, type = types[name];\n if (type) { return [type] }\n var result = [];\n for (var typeName in types) {\n var type$1 = types[typeName];\n if (type$1.groups.indexOf(name) > -1) { result.push(type$1); }\n }\n if (result.length == 0) { stream.err(\"No node type or group '\" + name + \"' found\"); }\n return result\n}\n\nfunction parseExprAtom(stream) {\n if (stream.eat(\"(\")) {\n var expr = parseExpr(stream);\n if (!stream.eat(\")\")) { stream.err(\"Missing closing paren\"); }\n return expr\n } else if (!/\\W/.test(stream.next)) {\n var exprs = resolveName(stream, stream.next).map(function (type) {\n if (stream.inline == null) { stream.inline = type.isInline; }\n else if (stream.inline != type.isInline) { stream.err(\"Mixing inline and block content\"); }\n return {type: \"name\", value: type}\n });\n stream.pos++;\n return exprs.length == 1 ? exprs[0] : {type: \"choice\", exprs: exprs}\n } else {\n stream.err(\"Unexpected token '\" + stream.next + \"'\");\n }\n}\n\n// The code below helps compile a regular-expression-like language\n// into a deterministic finite automaton. For a good introduction to\n// these concepts, see https://swtch.com/~rsc/regexp/regexp1.html\n\n// : (Object) → [[{term: ?any, to: number}]]\n// Construct an NFA from an expression as returned by the parser. The\n// NFA is represented as an array of states, which are themselves\n// arrays of edges, which are `{term, to}` objects. The first state is\n// the entry state and the last node is the success state.\n//\n// Note that unlike typical NFAs, the edge ordering in this one is\n// significant, in that it is used to contruct filler content when\n// necessary.\nfunction nfa(expr) {\n var nfa = [[]];\n connect(compile(expr, 0), node());\n return nfa\n\n function node() { return nfa.push([]) - 1 }\n function edge(from, to, term) {\n var edge = {term: term, to: to};\n nfa[from].push(edge);\n return edge\n }\n function connect(edges, to) { edges.forEach(function (edge) { return edge.to = to; }); }\n\n function compile(expr, from) {\n if (expr.type == \"choice\") {\n return expr.exprs.reduce(function (out, expr) { return out.concat(compile(expr, from)); }, [])\n } else if (expr.type == \"seq\") {\n for (var i = 0;; i++) {\n var next = compile(expr.exprs[i], from);\n if (i == expr.exprs.length - 1) { return next }\n connect(next, from = node());\n }\n } else if (expr.type == \"star\") {\n var loop = node();\n edge(from, loop);\n connect(compile(expr.expr, loop), loop);\n return [edge(loop)]\n } else if (expr.type == \"plus\") {\n var loop$1 = node();\n connect(compile(expr.expr, from), loop$1);\n connect(compile(expr.expr, loop$1), loop$1);\n return [edge(loop$1)]\n } else if (expr.type == \"opt\") {\n return [edge(from)].concat(compile(expr.expr, from))\n } else if (expr.type == \"range\") {\n var cur = from;\n for (var i$1 = 0; i$1 < expr.min; i$1++) {\n var next$1 = node();\n connect(compile(expr.expr, cur), next$1);\n cur = next$1;\n }\n if (expr.max == -1) {\n connect(compile(expr.expr, cur), cur);\n } else {\n for (var i$2 = expr.min; i$2 < expr.max; i$2++) {\n var next$2 = node();\n edge(cur, next$2);\n connect(compile(expr.expr, cur), next$2);\n cur = next$2;\n }\n }\n return [edge(cur)]\n } else if (expr.type == \"name\") {\n return [edge(from, null, expr.value)]\n }\n }\n}\n\nfunction cmp(a, b) { return b - a }\n\n// Get the set of nodes reachable by null edges from `node`. Omit\n// nodes with only a single null-out-edge, since they may lead to\n// needless duplicated nodes.\nfunction nullFrom(nfa, node) {\n var result = [];\n scan(node);\n return result.sort(cmp)\n\n function scan(node) {\n var edges = nfa[node];\n if (edges.length == 1 && !edges[0].term) { return scan(edges[0].to) }\n result.push(node);\n for (var i = 0; i < edges.length; i++) {\n var ref = edges[i];\n var term = ref.term;\n var to = ref.to;\n if (!term && result.indexOf(to) == -1) { scan(to); }\n }\n }\n}\n\n// : ([[{term: ?any, to: number}]]) → ContentMatch\n// Compiles an NFA as produced by `nfa` into a DFA, modeled as a set\n// of state objects (`ContentMatch` instances) with transitions\n// between them.\nfunction dfa(nfa) {\n var labeled = Object.create(null);\n return explore(nullFrom(nfa, 0))\n\n function explore(states) {\n var out = [];\n states.forEach(function (node) {\n nfa[node].forEach(function (ref) {\n var term = ref.term;\n var to = ref.to;\n\n if (!term) { return }\n var known = out.indexOf(term), set = known > -1 && out[known + 1];\n nullFrom(nfa, to).forEach(function (node) {\n if (!set) { out.push(term, set = []); }\n if (set.indexOf(node) == -1) { set.push(node); }\n });\n });\n });\n var state = labeled[states.join(\",\")] = new ContentMatch(states.indexOf(nfa.length - 1) > -1);\n for (var i = 0; i < out.length; i += 2) {\n var states$1 = out[i + 1].sort(cmp);\n state.next.push(out[i], labeled[states$1.join(\",\")] || explore(states$1));\n }\n return state\n }\n}\n\nfunction checkForDeadEnds(match, stream) {\n for (var i = 0, work = [match]; i < work.length; i++) {\n var state = work[i], dead = !state.validEnd, nodes = [];\n for (var j = 0; j < state.next.length; j += 2) {\n var node = state.next[j], next = state.next[j + 1];\n nodes.push(node.name);\n if (dead && !(node.isText || node.hasRequiredAttrs())) { dead = false; }\n if (work.indexOf(next) == -1) { work.push(next); }\n }\n if (dead) { stream.err(\"Only non-generatable nodes (\" + nodes.join(\", \") + \") in a required position (see https://prosemirror.net/docs/guide/#generatable)\"); }\n }\n}\n\n// For node types where all attrs have a default value (or which don't\n// have any attributes), build up a single reusable default attribute\n// object, and use it for all nodes that don't specify specific\n// attributes.\nfunction defaultAttrs(attrs) {\n var defaults = Object.create(null);\n for (var attrName in attrs) {\n var attr = attrs[attrName];\n if (!attr.hasDefault) { return null }\n defaults[attrName] = attr.default;\n }\n return defaults\n}\n\nfunction computeAttrs(attrs, value) {\n var built = Object.create(null);\n for (var name in attrs) {\n var given = value && value[name];\n if (given === undefined) {\n var attr = attrs[name];\n if (attr.hasDefault) { given = attr.default; }\n else { throw new RangeError(\"No value supplied for attribute \" + name) }\n }\n built[name] = given;\n }\n return built\n}\n\nfunction initAttrs(attrs) {\n var result = Object.create(null);\n if (attrs) { for (var name in attrs) { result[name] = new Attribute(attrs[name]); } }\n return result\n}\n\n// ::- Node types are objects allocated once per `Schema` and used to\n// [tag](#model.Node.type) `Node` instances. They contain information\n// about the node type, such as its name and what kind of node it\n// represents.\nvar NodeType = function NodeType(name, schema, spec) {\n // :: string\n // The name the node type has in this schema.\n this.name = name;\n\n // :: Schema\n // A link back to the `Schema` the node type belongs to.\n this.schema = schema;\n\n // :: NodeSpec\n // The spec that this type is based on\n this.spec = spec;\n\n this.groups = spec.group ? spec.group.split(\" \") : [];\n this.attrs = initAttrs(spec.attrs);\n\n this.defaultAttrs = defaultAttrs(this.attrs);\n\n // :: ContentMatch\n // The starting match of the node type's content expression.\n this.contentMatch = null;\n\n // : ?[MarkType]\n // The set of marks allowed in this node. `null` means all marks\n // are allowed.\n this.markSet = null;\n\n // :: bool\n // True if this node type has inline content.\n this.inlineContent = null;\n\n // :: bool\n // True if this is a block type\n this.isBlock = !(spec.inline || name == \"text\");\n\n // :: bool\n // True if this is the text node type.\n this.isText = name == \"text\";\n};\n\nvar prototypeAccessors$5 = { isInline: { configurable: true },isTextblock: { configurable: true },isLeaf: { configurable: true },isAtom: { configurable: true } };\n\n// :: bool\n// True if this is an inline type.\nprototypeAccessors$5.isInline.get = function () { return !this.isBlock };\n\n// :: bool\n// True if this is a textblock type, a block that contains inline\n// content.\nprototypeAccessors$5.isTextblock.get = function () { return this.isBlock && this.inlineContent };\n\n// :: bool\n// True for node types that allow no content.\nprototypeAccessors$5.isLeaf.get = function () { return this.contentMatch == ContentMatch.empty };\n\n// :: bool\n// True when this node is an atom, i.e. when it does not have\n// directly editable content.\nprototypeAccessors$5.isAtom.get = function () { return this.isLeaf || this.spec.atom };\n\n// :: () → bool\n// Tells you whether this node type has any required attributes.\nNodeType.prototype.hasRequiredAttrs = function hasRequiredAttrs () {\n for (var n in this.attrs) { if (this.attrs[n].isRequired) { return true } }\n return false\n};\n\nNodeType.prototype.compatibleContent = function compatibleContent (other) {\n return this == other || this.contentMatch.compatible(other.contentMatch)\n};\n\nNodeType.prototype.computeAttrs = function computeAttrs$1 (attrs) {\n if (!attrs && this.defaultAttrs) { return this.defaultAttrs }\n else { return computeAttrs(this.attrs, attrs) }\n};\n\n// :: (?Object, ?union, ?[Mark]) → Node\n// Create a `Node` of this type. The given attributes are\n// checked and defaulted (you can pass `null` to use the type's\n// defaults entirely, if no required attributes exist). `content`\n// may be a `Fragment`, a node, an array of nodes, or\n// `null`. Similarly `marks` may be `null` to default to the empty\n// set of marks.\nNodeType.prototype.create = function create (attrs, content, marks) {\n if (this.isText) { throw new Error(\"NodeType.create can't construct text nodes\") }\n return new Node(this, this.computeAttrs(attrs), Fragment.from(content), Mark.setFrom(marks))\n};\n\n// :: (?Object, ?union, ?[Mark]) → Node\n// Like [`create`](#model.NodeType.create), but check the given content\n// against the node type's content restrictions, and throw an error\n// if it doesn't match.\nNodeType.prototype.createChecked = function createChecked (attrs, content, marks) {\n content = Fragment.from(content);\n if (!this.validContent(content))\n { throw new RangeError(\"Invalid content for node \" + this.name) }\n return new Node(this, this.computeAttrs(attrs), content, Mark.setFrom(marks))\n};\n\n// :: (?Object, ?union, ?[Mark]) → ?Node\n// Like [`create`](#model.NodeType.create), but see if it is necessary to\n// add nodes to the start or end of the given fragment to make it\n// fit the node. If no fitting wrapping can be found, return null.\n// Note that, due to the fact that required nodes can always be\n// created, this will always succeed if you pass null or\n// `Fragment.empty` as content.\nNodeType.prototype.createAndFill = function createAndFill (attrs, content, marks) {\n attrs = this.computeAttrs(attrs);\n content = Fragment.from(content);\n if (content.size) {\n var before = this.contentMatch.fillBefore(content);\n if (!before) { return null }\n content = before.append(content);\n }\n var after = this.contentMatch.matchFragment(content).fillBefore(Fragment.empty, true);\n if (!after) { return null }\n return new Node(this, attrs, content.append(after), Mark.setFrom(marks))\n};\n\n// :: (Fragment) → bool\n// Returns true if the given fragment is valid content for this node\n// type with the given attributes.\nNodeType.prototype.validContent = function validContent (content) {\n var result = this.contentMatch.matchFragment(content);\n if (!result || !result.validEnd) { return false }\n for (var i = 0; i < content.childCount; i++)\n { if (!this.allowsMarks(content.child(i).marks)) { return false } }\n return true\n};\n\n// :: (MarkType) → bool\n// Check whether the given mark type is allowed in this node.\nNodeType.prototype.allowsMarkType = function allowsMarkType (markType) {\n return this.markSet == null || this.markSet.indexOf(markType) > -1\n};\n\n// :: ([Mark]) → bool\n// Test whether the given set of marks are allowed in this node.\nNodeType.prototype.allowsMarks = function allowsMarks (marks) {\n if (this.markSet == null) { return true }\n for (var i = 0; i < marks.length; i++) { if (!this.allowsMarkType(marks[i].type)) { return false } }\n return true\n};\n\n// :: ([Mark]) → [Mark]\n// Removes the marks that are not allowed in this node from the given set.\nNodeType.prototype.allowedMarks = function allowedMarks (marks) {\n if (this.markSet == null) { return marks }\n var copy;\n for (var i = 0; i < marks.length; i++) {\n if (!this.allowsMarkType(marks[i].type)) {\n if (!copy) { copy = marks.slice(0, i); }\n } else if (copy) {\n copy.push(marks[i]);\n }\n }\n return !copy ? marks : copy.length ? copy : Mark.empty\n};\n\nNodeType.compile = function compile (nodes, schema) {\n var result = Object.create(null);\n nodes.forEach(function (name, spec) { return result[name] = new NodeType(name, schema, spec); });\n\n var topType = schema.spec.topNode || \"doc\";\n if (!result[topType]) { throw new RangeError(\"Schema is missing its top node type ('\" + topType + \"')\") }\n if (!result.text) { throw new RangeError(\"Every schema needs a 'text' type\") }\n for (var _ in result.text.attrs) { throw new RangeError(\"The text node type should not have attributes\") }\n\n return result\n};\n\nObject.defineProperties( NodeType.prototype, prototypeAccessors$5 );\n\n// Attribute descriptors\n\nvar Attribute = function Attribute(options) {\n this.hasDefault = Object.prototype.hasOwnProperty.call(options, \"default\");\n this.default = options.default;\n};\n\nvar prototypeAccessors$1$3 = { isRequired: { configurable: true } };\n\nprototypeAccessors$1$3.isRequired.get = function () {\n return !this.hasDefault\n};\n\nObject.defineProperties( Attribute.prototype, prototypeAccessors$1$3 );\n\n// Marks\n\n// ::- Like nodes, marks (which are associated with nodes to signify\n// things like emphasis or being part of a link) are\n// [tagged](#model.Mark.type) with type objects, which are\n// instantiated once per `Schema`.\nvar MarkType = function MarkType(name, rank, schema, spec) {\n // :: string\n // The name of the mark type.\n this.name = name;\n\n // :: Schema\n // The schema that this mark type instance is part of.\n this.schema = schema;\n\n // :: MarkSpec\n // The spec on which the type is based.\n this.spec = spec;\n\n this.attrs = initAttrs(spec.attrs);\n\n this.rank = rank;\n this.excluded = null;\n var defaults = defaultAttrs(this.attrs);\n this.instance = defaults && new Mark(this, defaults);\n};\n\n// :: (?Object) → Mark\n// Create a mark of this type. `attrs` may be `null` or an object\n// containing only some of the mark's attributes. The others, if\n// they have defaults, will be added.\nMarkType.prototype.create = function create (attrs) {\n if (!attrs && this.instance) { return this.instance }\n return new Mark(this, computeAttrs(this.attrs, attrs))\n};\n\nMarkType.compile = function compile (marks, schema) {\n var result = Object.create(null), rank = 0;\n marks.forEach(function (name, spec) { return result[name] = new MarkType(name, rank++, schema, spec); });\n return result\n};\n\n// :: ([Mark]) → [Mark]\n// When there is a mark of this type in the given set, a new set\n// without it is returned. Otherwise, the input set is returned.\nMarkType.prototype.removeFromSet = function removeFromSet (set) {\n for (var i = 0; i < set.length; i++) { if (set[i].type == this) {\n set = set.slice(0, i).concat(set.slice(i + 1));\n i--;\n } }\n return set\n};\n\n// :: ([Mark]) → ?Mark\n// Tests whether there is a mark of this type in the given set.\nMarkType.prototype.isInSet = function isInSet (set) {\n for (var i = 0; i < set.length; i++)\n { if (set[i].type == this) { return set[i] } }\n};\n\n// :: (MarkType) → bool\n// Queries whether a given mark type is\n// [excluded](#model.MarkSpec.excludes) by this one.\nMarkType.prototype.excludes = function excludes (other) {\n return this.excluded.indexOf(other) > -1\n};\n\n// SchemaSpec:: interface\n// An object describing a schema, as passed to the [`Schema`](#model.Schema)\n// constructor.\n//\n// nodes:: union, OrderedMap>\n// The node types in this schema. Maps names to\n// [`NodeSpec`](#model.NodeSpec) objects that describe the node type\n// associated with that name. Their order is significant—it\n// determines which [parse rules](#model.NodeSpec.parseDOM) take\n// precedence by default, and which nodes come first in a given\n// [group](#model.NodeSpec.group).\n//\n// marks:: ?union, OrderedMap>\n// The mark types that exist in this schema. The order in which they\n// are provided determines the order in which [mark\n// sets](#model.Mark.addToSet) are sorted and in which [parse\n// rules](#model.MarkSpec.parseDOM) are tried.\n//\n// topNode:: ?string\n// The name of the default top-level node for the schema. Defaults\n// to `\"doc\"`.\n\n// NodeSpec:: interface\n//\n// content:: ?string\n// The content expression for this node, as described in the [schema\n// guide](/docs/guide/#schema.content_expressions). When not given,\n// the node does not allow any content.\n//\n// marks:: ?string\n// The marks that are allowed inside of this node. May be a\n// space-separated string referring to mark names or groups, `\"_\"`\n// to explicitly allow all marks, or `\"\"` to disallow marks. When\n// not given, nodes with inline content default to allowing all\n// marks, other nodes default to not allowing marks.\n//\n// group:: ?string\n// The group or space-separated groups to which this node belongs,\n// which can be referred to in the content expressions for the\n// schema.\n//\n// inline:: ?bool\n// Should be set to true for inline nodes. (Implied for text nodes.)\n//\n// atom:: ?bool\n// Can be set to true to indicate that, though this isn't a [leaf\n// node](#model.NodeType.isLeaf), it doesn't have directly editable\n// content and should be treated as a single unit in the view.\n//\n// attrs:: ?Object\n// The attributes that nodes of this type get.\n//\n// selectable:: ?bool\n// Controls whether nodes of this type can be selected as a [node\n// selection](#state.NodeSelection). Defaults to true for non-text\n// nodes.\n//\n// draggable:: ?bool\n// Determines whether nodes of this type can be dragged without\n// being selected. Defaults to false.\n//\n// code:: ?bool\n// Can be used to indicate that this node contains code, which\n// causes some commands to behave differently.\n//\n// defining:: ?bool\n// Determines whether this node is considered an important parent\n// node during replace operations (such as paste). Non-defining (the\n// default) nodes get dropped when their entire content is replaced,\n// whereas defining nodes persist and wrap the inserted content.\n// Likewise, in _inserted_ content the defining parents of the\n// content are preserved when possible. Typically,\n// non-default-paragraph textblock types, and possibly list items,\n// are marked as defining.\n//\n// isolating:: ?bool\n// When enabled (default is false), the sides of nodes of this type\n// count as boundaries that regular editing operations, like\n// backspacing or lifting, won't cross. An example of a node that\n// should probably have this enabled is a table cell.\n//\n// toDOM:: ?(node: Node) → DOMOutputSpec\n// Defines the default way a node of this type should be serialized\n// to DOM/HTML (as used by\n// [`DOMSerializer.fromSchema`](#model.DOMSerializer^fromSchema)).\n// Should return a DOM node or an [array\n// structure](#model.DOMOutputSpec) that describes one, with an\n// optional number zero (“hole”) in it to indicate where the node's\n// content should be inserted.\n//\n// For text nodes, the default is to create a text DOM node. Though\n// it is possible to create a serializer where text is rendered\n// differently, this is not supported inside the editor, so you\n// shouldn't override that in your text node spec.\n//\n// parseDOM:: ?[ParseRule]\n// Associates DOM parser information with this node, which can be\n// used by [`DOMParser.fromSchema`](#model.DOMParser^fromSchema) to\n// automatically derive a parser. The `node` field in the rules is\n// implied (the name of this node will be filled in automatically).\n// If you supply your own parser, you do not need to also specify\n// parsing rules in your schema.\n//\n// toDebugString:: ?(node: Node) -> string\n// Defines the default way a node of this type should be serialized\n// to a string representation for debugging (e.g. in error messages).\n\n// MarkSpec:: interface\n//\n// attrs:: ?Object\n// The attributes that marks of this type get.\n//\n// inclusive:: ?bool\n// Whether this mark should be active when the cursor is positioned\n// at its end (or at its start when that is also the start of the\n// parent node). Defaults to true.\n//\n// excludes:: ?string\n// Determines which other marks this mark can coexist with. Should\n// be a space-separated strings naming other marks or groups of marks.\n// When a mark is [added](#model.Mark.addToSet) to a set, all marks\n// that it excludes are removed in the process. If the set contains\n// any mark that excludes the new mark but is not, itself, excluded\n// by the new mark, the mark can not be added an the set. You can\n// use the value `\"_\"` to indicate that the mark excludes all\n// marks in the schema.\n//\n// Defaults to only being exclusive with marks of the same type. You\n// can set it to an empty string (or any string not containing the\n// mark's own name) to allow multiple marks of a given type to\n// coexist (as long as they have different attributes).\n//\n// group:: ?string\n// The group or space-separated groups to which this mark belongs.\n//\n// spanning:: ?bool\n// Determines whether marks of this type can span multiple adjacent\n// nodes when serialized to DOM/HTML. Defaults to true.\n//\n// toDOM:: ?(mark: Mark, inline: bool) → DOMOutputSpec\n// Defines the default way marks of this type should be serialized\n// to DOM/HTML. When the resulting spec contains a hole, that is\n// where the marked content is placed. Otherwise, it is appended to\n// the top node.\n//\n// parseDOM:: ?[ParseRule]\n// Associates DOM parser information with this mark (see the\n// corresponding [node spec field](#model.NodeSpec.parseDOM)). The\n// `mark` field in the rules is implied.\n\n// AttributeSpec:: interface\n//\n// Used to [define](#model.NodeSpec.attrs) attributes on nodes or\n// marks.\n//\n// default:: ?any\n// The default value for this attribute, to use when no explicit\n// value is provided. Attributes that have no default must be\n// provided whenever a node or mark of a type that has them is\n// created.\n\n// ::- A document schema. Holds [node](#model.NodeType) and [mark\n// type](#model.MarkType) objects for the nodes and marks that may\n// occur in conforming documents, and provides functionality for\n// creating and deserializing such documents.\nvar Schema = function Schema(spec) {\n // :: SchemaSpec\n // The [spec](#model.SchemaSpec) on which the schema is based,\n // with the added guarantee that its `nodes` and `marks`\n // properties are\n // [`OrderedMap`](https://github.com/marijnh/orderedmap) instances\n // (not raw objects).\n this.spec = {};\n for (var prop in spec) { this.spec[prop] = spec[prop]; }\n this.spec.nodes = OrderedMap.from(spec.nodes);\n this.spec.marks = OrderedMap.from(spec.marks);\n\n // :: Object\n // An object mapping the schema's node names to node type objects.\n this.nodes = NodeType.compile(this.spec.nodes, this);\n\n // :: Object\n // A map from mark names to mark type objects.\n this.marks = MarkType.compile(this.spec.marks, this);\n\n var contentExprCache = Object.create(null);\n for (var prop$1 in this.nodes) {\n if (prop$1 in this.marks)\n { throw new RangeError(prop$1 + \" can not be both a node and a mark\") }\n var type = this.nodes[prop$1], contentExpr = type.spec.content || \"\", markExpr = type.spec.marks;\n type.contentMatch = contentExprCache[contentExpr] ||\n (contentExprCache[contentExpr] = ContentMatch.parse(contentExpr, this.nodes));\n type.inlineContent = type.contentMatch.inlineContent;\n type.markSet = markExpr == \"_\" ? null :\n markExpr ? gatherMarks(this, markExpr.split(\" \")) :\n markExpr == \"\" || !type.inlineContent ? [] : null;\n }\n for (var prop$2 in this.marks) {\n var type$1 = this.marks[prop$2], excl = type$1.spec.excludes;\n type$1.excluded = excl == null ? [type$1] : excl == \"\" ? [] : gatherMarks(this, excl.split(\" \"));\n }\n\n this.nodeFromJSON = this.nodeFromJSON.bind(this);\n this.markFromJSON = this.markFromJSON.bind(this);\n\n // :: NodeType\n // The type of the [default top node](#model.SchemaSpec.topNode)\n // for this schema.\n this.topNodeType = this.nodes[this.spec.topNode || \"doc\"];\n\n // :: Object\n // An object for storing whatever values modules may want to\n // compute and cache per schema. (If you want to store something\n // in it, try to use property names unlikely to clash.)\n this.cached = Object.create(null);\n this.cached.wrappings = Object.create(null);\n};\n\n// :: (union, ?Object, ?union, ?[Mark]) → Node\n// Create a node in this schema. The `type` may be a string or a\n// `NodeType` instance. Attributes will be extended\n// with defaults, `content` may be a `Fragment`,\n// `null`, a `Node`, or an array of nodes.\nSchema.prototype.node = function node (type, attrs, content, marks) {\n if (typeof type == \"string\")\n { type = this.nodeType(type); }\n else if (!(type instanceof NodeType))\n { throw new RangeError(\"Invalid node type: \" + type) }\n else if (type.schema != this)\n { throw new RangeError(\"Node type from different schema used (\" + type.name + \")\") }\n\n return type.createChecked(attrs, content, marks)\n};\n\n// :: (string, ?[Mark]) → Node\n// Create a text node in the schema. Empty text nodes are not\n// allowed.\nSchema.prototype.text = function text (text$1, marks) {\n var type = this.nodes.text;\n return new TextNode(type, type.defaultAttrs, text$1, Mark.setFrom(marks))\n};\n\n// :: (union, ?Object) → Mark\n// Create a mark with the given type and attributes.\nSchema.prototype.mark = function mark (type, attrs) {\n if (typeof type == \"string\") { type = this.marks[type]; }\n return type.create(attrs)\n};\n\n// :: (Object) → Node\n// Deserialize a node from its JSON representation. This method is\n// bound.\nSchema.prototype.nodeFromJSON = function nodeFromJSON (json) {\n return Node.fromJSON(this, json)\n};\n\n// :: (Object) → Mark\n// Deserialize a mark from its JSON representation. This method is\n// bound.\nSchema.prototype.markFromJSON = function markFromJSON (json) {\n return Mark.fromJSON(this, json)\n};\n\nSchema.prototype.nodeType = function nodeType (name) {\n var found = this.nodes[name];\n if (!found) { throw new RangeError(\"Unknown node type: \" + name) }\n return found\n};\n\nfunction gatherMarks(schema, marks) {\n var found = [];\n for (var i = 0; i < marks.length; i++) {\n var name = marks[i], mark = schema.marks[name], ok = mark;\n if (mark) {\n found.push(mark);\n } else {\n for (var prop in schema.marks) {\n var mark$1 = schema.marks[prop];\n if (name == \"_\" || (mark$1.spec.group && mark$1.spec.group.split(\" \").indexOf(name) > -1))\n { found.push(ok = mark$1); }\n }\n }\n if (!ok) { throw new SyntaxError(\"Unknown mark type: '\" + marks[i] + \"'\") }\n }\n return found\n}\n\n// ParseOptions:: interface\n// These are the options recognized by the\n// [`parse`](#model.DOMParser.parse) and\n// [`parseSlice`](#model.DOMParser.parseSlice) methods.\n//\n// preserveWhitespace:: ?union\n// By default, whitespace is collapsed as per HTML's rules. Pass\n// `true` to preserve whitespace, but normalize newlines to\n// spaces, and `\"full\"` to preserve whitespace entirely.\n//\n// findPositions:: ?[{node: dom.Node, offset: number}]\n// When given, the parser will, beside parsing the content,\n// record the document positions of the given DOM positions. It\n// will do so by writing to the objects, adding a `pos` property\n// that holds the document position. DOM positions that are not\n// in the parsed content will not be written to.\n//\n// from:: ?number\n// The child node index to start parsing from.\n//\n// to:: ?number\n// The child node index to stop parsing at.\n//\n// topNode:: ?Node\n// By default, the content is parsed into the schema's default\n// [top node type](#model.Schema.topNodeType). You can pass this\n// option to use the type and attributes from a different node\n// as the top container.\n//\n// topMatch:: ?ContentMatch\n// Provide the starting content match that content parsed into the\n// top node is matched against.\n//\n// context:: ?ResolvedPos\n// A set of additional nodes to count as\n// [context](#model.ParseRule.context) when parsing, above the\n// given [top node](#model.ParseOptions.topNode).\n\n// ParseRule:: interface\n// A value that describes how to parse a given DOM node or inline\n// style as a ProseMirror node or mark.\n//\n// tag:: ?string\n// A CSS selector describing the kind of DOM elements to match. A\n// single rule should have _either_ a `tag` or a `style` property.\n//\n// namespace:: ?string\n// The namespace to match. This should be used with `tag`.\n// Nodes are only matched when the namespace matches or this property\n// is null.\n//\n// style:: ?string\n// A CSS property name to match. When given, this rule matches\n// inline styles that list that property. May also have the form\n// `\"property=value\"`, in which case the rule only matches if the\n// property's value exactly matches the given value. (For more\n// complicated filters, use [`getAttrs`](#model.ParseRule.getAttrs)\n// and return false to indicate that the match failed.) Rules\n// matching styles may only produce [marks](#model.ParseRule.mark),\n// not nodes.\n//\n// priority:: ?number\n// Can be used to change the order in which the parse rules in a\n// schema are tried. Those with higher priority come first. Rules\n// without a priority are counted as having priority 50. This\n// property is only meaningful in a schema—when directly\n// constructing a parser, the order of the rule array is used.\n//\n// consuming:: ?boolean\n// By default, when a rule matches an element or style, no further\n// rules get a chance to match it. By setting this to `false`, you\n// indicate that even when this rule matches, other rules that come\n// after it should also run.\n//\n// context:: ?string\n// When given, restricts this rule to only match when the current\n// context—the parent nodes into which the content is being\n// parsed—matches this expression. Should contain one or more node\n// names or node group names followed by single or double slashes.\n// For example `\"paragraph/\"` means the rule only matches when the\n// parent node is a paragraph, `\"blockquote/paragraph/\"` restricts\n// it to be in a paragraph that is inside a blockquote, and\n// `\"section//\"` matches any position inside a section—a double\n// slash matches any sequence of ancestor nodes. To allow multiple\n// different contexts, they can be separated by a pipe (`|`)\n// character, as in `\"blockquote/|list_item/\"`.\n//\n// node:: ?string\n// The name of the node type to create when this rule matches. Only\n// valid for rules with a `tag` property, not for style rules. Each\n// rule should have one of a `node`, `mark`, or `ignore` property\n// (except when it appears in a [node](#model.NodeSpec.parseDOM) or\n// [mark spec](#model.MarkSpec.parseDOM), in which case the `node`\n// or `mark` property will be derived from its position).\n//\n// mark:: ?string\n// The name of the mark type to wrap the matched content in.\n//\n// ignore:: ?bool\n// When true, ignore content that matches this rule.\n//\n// closeParent:: ?bool\n// When true, finding an element that matches this rule will close\n// the current node.\n//\n// skip:: ?bool\n// When true, ignore the node that matches this rule, but do parse\n// its content.\n//\n// attrs:: ?Object\n// Attributes for the node or mark created by this rule. When\n// `getAttrs` is provided, it takes precedence.\n//\n// getAttrs:: ?(union) → ?union\n// A function used to compute the attributes for the node or mark\n// created by this rule. Can also be used to describe further\n// conditions the DOM element or style must match. When it returns\n// `false`, the rule won't match. When it returns null or undefined,\n// that is interpreted as an empty/default set of attributes.\n//\n// Called with a DOM Element for `tag` rules, and with a string (the\n// style's value) for `style` rules.\n//\n// contentElement:: ?union\n// For `tag` rules that produce non-leaf nodes or marks, by default\n// the content of the DOM element is parsed as content of the mark\n// or node. If the child nodes are in a descendent node, this may be\n// a CSS selector string that the parser must use to find the actual\n// content element, or a function that returns the actual content\n// element to the parser.\n//\n// getContent:: ?(dom.Node, schema: Schema) → Fragment\n// Can be used to override the content of a matched node. When\n// present, instead of parsing the node's child nodes, the result of\n// this function is used.\n//\n// preserveWhitespace:: ?union\n// Controls whether whitespace should be preserved when parsing the\n// content inside the matched element. `false` means whitespace may\n// be collapsed, `true` means that whitespace should be preserved\n// but newlines normalized to spaces, and `\"full\"` means that\n// newlines should also be preserved.\n\n// ::- A DOM parser represents a strategy for parsing DOM content into\n// a ProseMirror document conforming to a given schema. Its behavior\n// is defined by an array of [rules](#model.ParseRule).\nvar DOMParser = function DOMParser(schema, rules) {\n var this$1 = this;\n\n // :: Schema\n // The schema into which the parser parses.\n this.schema = schema;\n // :: [ParseRule]\n // The set of [parse rules](#model.ParseRule) that the parser\n // uses, in order of precedence.\n this.rules = rules;\n this.tags = [];\n this.styles = [];\n\n rules.forEach(function (rule) {\n if (rule.tag) { this$1.tags.push(rule); }\n else if (rule.style) { this$1.styles.push(rule); }\n });\n\n // Only normalize list elements when lists in the schema can't directly contain themselves\n this.normalizeLists = !this.tags.some(function (r) {\n if (!/^(ul|ol)\\b/.test(r.tag) || !r.node) { return false }\n var node = schema.nodes[r.node];\n return node.contentMatch.matchType(node)\n });\n};\n\n// :: (dom.Node, ?ParseOptions) → Node\n// Parse a document from the content of a DOM node.\nDOMParser.prototype.parse = function parse (dom, options) {\n if ( options === void 0 ) options = {};\n\n var context = new ParseContext(this, options, false);\n context.addAll(dom, null, options.from, options.to);\n return context.finish()\n};\n\n// :: (dom.Node, ?ParseOptions) → Slice\n// Parses the content of the given DOM node, like\n// [`parse`](#model.DOMParser.parse), and takes the same set of\n// options. But unlike that method, which produces a whole node,\n// this one returns a slice that is open at the sides, meaning that\n// the schema constraints aren't applied to the start of nodes to\n// the left of the input and the end of nodes at the end.\nDOMParser.prototype.parseSlice = function parseSlice (dom, options) {\n if ( options === void 0 ) options = {};\n\n var context = new ParseContext(this, options, true);\n context.addAll(dom, null, options.from, options.to);\n return Slice.maxOpen(context.finish())\n};\n\nDOMParser.prototype.matchTag = function matchTag (dom, context, after) {\n for (var i = after ? this.tags.indexOf(after) + 1 : 0; i < this.tags.length; i++) {\n var rule = this.tags[i];\n if (matches(dom, rule.tag) &&\n (rule.namespace === undefined || dom.namespaceURI == rule.namespace) &&\n (!rule.context || context.matchesContext(rule.context))) {\n if (rule.getAttrs) {\n var result = rule.getAttrs(dom);\n if (result === false) { continue }\n rule.attrs = result;\n }\n return rule\n }\n }\n};\n\nDOMParser.prototype.matchStyle = function matchStyle (prop, value, context, after) {\n for (var i = after ? this.styles.indexOf(after) + 1 : 0; i < this.styles.length; i++) {\n var rule = this.styles[i];\n if (rule.style.indexOf(prop) != 0 ||\n rule.context && !context.matchesContext(rule.context) ||\n // Test that the style string either precisely matches the prop,\n // or has an '=' sign after the prop, followed by the given\n // value.\n rule.style.length > prop.length &&\n (rule.style.charCodeAt(prop.length) != 61 || rule.style.slice(prop.length + 1) != value))\n { continue }\n if (rule.getAttrs) {\n var result = rule.getAttrs(value);\n if (result === false) { continue }\n rule.attrs = result;\n }\n return rule\n }\n};\n\n// : (Schema) → [ParseRule]\nDOMParser.schemaRules = function schemaRules (schema) {\n var result = [];\n function insert(rule) {\n var priority = rule.priority == null ? 50 : rule.priority, i = 0;\n for (; i < result.length; i++) {\n var next = result[i], nextPriority = next.priority == null ? 50 : next.priority;\n if (nextPriority < priority) { break }\n }\n result.splice(i, 0, rule);\n }\n\n var loop = function ( name ) {\n var rules = schema.marks[name].spec.parseDOM;\n if (rules) { rules.forEach(function (rule) {\n insert(rule = copy(rule));\n rule.mark = name;\n }); }\n };\n\n for (var name in schema.marks) loop( name );\n var loop$1 = function ( name ) {\n var rules$1 = schema.nodes[name$1].spec.parseDOM;\n if (rules$1) { rules$1.forEach(function (rule) {\n insert(rule = copy(rule));\n rule.node = name$1;\n }); }\n };\n\n for (var name$1 in schema.nodes) loop$1();\n return result\n};\n\n// :: (Schema) → DOMParser\n// Construct a DOM parser using the parsing rules listed in a\n// schema's [node specs](#model.NodeSpec.parseDOM), reordered by\n// [priority](#model.ParseRule.priority).\nDOMParser.fromSchema = function fromSchema (schema) {\n return schema.cached.domParser ||\n (schema.cached.domParser = new DOMParser(schema, DOMParser.schemaRules(schema)))\n};\n\n// : Object The block-level tags in HTML5\nvar blockTags = {\n address: true, article: true, aside: true, blockquote: true, canvas: true,\n dd: true, div: true, dl: true, fieldset: true, figcaption: true, figure: true,\n footer: true, form: true, h1: true, h2: true, h3: true, h4: true, h5: true,\n h6: true, header: true, hgroup: true, hr: true, li: true, noscript: true, ol: true,\n output: true, p: true, pre: true, section: true, table: true, tfoot: true, ul: true\n};\n\n// : Object The tags that we normally ignore.\nvar ignoreTags = {\n head: true, noscript: true, object: true, script: true, style: true, title: true\n};\n\n// : Object List tags.\nvar listTags = {ol: true, ul: true};\n\n// Using a bitfield for node context options\nvar OPT_PRESERVE_WS = 1, OPT_PRESERVE_WS_FULL = 2, OPT_OPEN_LEFT = 4;\n\nfunction wsOptionsFor(preserveWhitespace) {\n return (preserveWhitespace ? OPT_PRESERVE_WS : 0) | (preserveWhitespace === \"full\" ? OPT_PRESERVE_WS_FULL : 0)\n}\n\nvar NodeContext = function NodeContext(type, attrs, marks, pendingMarks, solid, match, options) {\n this.type = type;\n this.attrs = attrs;\n this.solid = solid;\n this.match = match || (options & OPT_OPEN_LEFT ? null : type.contentMatch);\n this.options = options;\n this.content = [];\n // Marks applied to this node itself\n this.marks = marks;\n // Marks applied to its children\n this.activeMarks = Mark.none;\n // Marks that can't apply here, but will be used in children if possible\n this.pendingMarks = pendingMarks;\n // Nested Marks with same type\n this.stashMarks = [];\n};\n\nNodeContext.prototype.findWrapping = function findWrapping (node) {\n if (!this.match) {\n if (!this.type) { return [] }\n var fill = this.type.contentMatch.fillBefore(Fragment.from(node));\n if (fill) {\n this.match = this.type.contentMatch.matchFragment(fill);\n } else {\n var start = this.type.contentMatch, wrap;\n if (wrap = start.findWrapping(node.type)) {\n this.match = start;\n return wrap\n } else {\n return null\n }\n }\n }\n return this.match.findWrapping(node.type)\n};\n\nNodeContext.prototype.finish = function finish (openEnd) {\n if (!(this.options & OPT_PRESERVE_WS)) { // Strip trailing whitespace\n var last = this.content[this.content.length - 1], m;\n if (last && last.isText && (m = /[ \\t\\r\\n\\u000c]+$/.exec(last.text))) {\n if (last.text.length == m[0].length) { this.content.pop(); }\n else { this.content[this.content.length - 1] = last.withText(last.text.slice(0, last.text.length - m[0].length)); }\n }\n }\n var content = Fragment.from(this.content);\n if (!openEnd && this.match)\n { content = content.append(this.match.fillBefore(Fragment.empty, true)); }\n return this.type ? this.type.create(this.attrs, content, this.marks) : content\n};\n\nNodeContext.prototype.popFromStashMark = function popFromStashMark (mark) {\n for (var i = this.stashMarks.length - 1; i >= 0; i--)\n { if (mark.eq(this.stashMarks[i])) { return this.stashMarks.splice(i, 1)[0] } }\n};\n\nNodeContext.prototype.applyPending = function applyPending (nextType) {\n for (var i = 0, pending = this.pendingMarks; i < pending.length; i++) {\n var mark = pending[i];\n if ((this.type ? this.type.allowsMarkType(mark.type) : markMayApply(mark.type, nextType)) &&\n !mark.isInSet(this.activeMarks)) {\n this.activeMarks = mark.addToSet(this.activeMarks);\n this.pendingMarks = mark.removeFromSet(this.pendingMarks);\n }\n }\n};\n\nvar ParseContext = function ParseContext(parser, options, open) {\n // : DOMParser The parser we are using.\n this.parser = parser;\n // : Object The options passed to this parse.\n this.options = options;\n this.isOpen = open;\n var topNode = options.topNode, topContext;\n var topOptions = wsOptionsFor(options.preserveWhitespace) | (open ? OPT_OPEN_LEFT : 0);\n if (topNode)\n { topContext = new NodeContext(topNode.type, topNode.attrs, Mark.none, Mark.none, true,\n options.topMatch || topNode.type.contentMatch, topOptions); }\n else if (open)\n { topContext = new NodeContext(null, null, Mark.none, Mark.none, true, null, topOptions); }\n else\n { topContext = new NodeContext(parser.schema.topNodeType, null, Mark.none, Mark.none, true, null, topOptions); }\n this.nodes = [topContext];\n // : [Mark] The current set of marks\n this.open = 0;\n this.find = options.findPositions;\n this.needsBlock = false;\n};\n\nvar prototypeAccessors$6 = { top: { configurable: true },currentPos: { configurable: true } };\n\nprototypeAccessors$6.top.get = function () {\n return this.nodes[this.open]\n};\n\n// : (dom.Node)\n// Add a DOM node to the content. Text is inserted as text node,\n// otherwise, the node is passed to `addElement` or, if it has a\n// `style` attribute, `addElementWithStyles`.\nParseContext.prototype.addDOM = function addDOM (dom) {\n if (dom.nodeType == 3) {\n this.addTextNode(dom);\n } else if (dom.nodeType == 1) {\n var style = dom.getAttribute(\"style\");\n var marks = style ? this.readStyles(parseStyles(style)) : null, top = this.top;\n if (marks != null) { for (var i = 0; i < marks.length; i++) { this.addPendingMark(marks[i]); } }\n this.addElement(dom);\n if (marks != null) { for (var i$1 = 0; i$1 < marks.length; i$1++) { this.removePendingMark(marks[i$1], top); } }\n }\n};\n\nParseContext.prototype.addTextNode = function addTextNode (dom) {\n var value = dom.nodeValue;\n var top = this.top;\n if ((top.type ? top.type.inlineContent : top.content.length && top.content[0].isInline) || /[^ \\t\\r\\n\\u000c]/.test(value)) {\n if (!(top.options & OPT_PRESERVE_WS)) {\n value = value.replace(/[ \\t\\r\\n\\u000c]+/g, \" \");\n // If this starts with whitespace, and there is no node before it, or\n // a hard break, or a text node that ends with whitespace, strip the\n // leading space.\n if (/^[ \\t\\r\\n\\u000c]/.test(value) && this.open == this.nodes.length - 1) {\n var nodeBefore = top.content[top.content.length - 1];\n var domNodeBefore = dom.previousSibling;\n if (!nodeBefore ||\n (domNodeBefore && domNodeBefore.nodeName == 'BR') ||\n (nodeBefore.isText && /[ \\t\\r\\n\\u000c]$/.test(nodeBefore.text)))\n { value = value.slice(1); }\n }\n } else if (!(top.options & OPT_PRESERVE_WS_FULL)) {\n value = value.replace(/\\r?\\n|\\r/g, \" \");\n }\n if (value) { this.insertNode(this.parser.schema.text(value)); }\n this.findInText(dom);\n } else {\n this.findInside(dom);\n }\n};\n\n// : (dom.Element, ?ParseRule)\n// Try to find a handler for the given tag and use that to parse. If\n// none is found, the element's content nodes are added directly.\nParseContext.prototype.addElement = function addElement (dom, matchAfter) {\n var name = dom.nodeName.toLowerCase(), ruleID;\n if (listTags.hasOwnProperty(name) && this.parser.normalizeLists) { normalizeList(dom); }\n var rule = (this.options.ruleFromNode && this.options.ruleFromNode(dom)) ||\n (ruleID = this.parser.matchTag(dom, this, matchAfter));\n if (rule ? rule.ignore : ignoreTags.hasOwnProperty(name)) {\n this.findInside(dom);\n } else if (!rule || rule.skip || rule.closeParent) {\n if (rule && rule.closeParent) { this.open = Math.max(0, this.open - 1); }\n else if (rule && rule.skip.nodeType) { dom = rule.skip; }\n var sync, top = this.top, oldNeedsBlock = this.needsBlock;\n if (blockTags.hasOwnProperty(name)) {\n sync = true;\n if (!top.type) { this.needsBlock = true; }\n } else if (!dom.firstChild) {\n this.leafFallback(dom);\n return\n }\n this.addAll(dom);\n if (sync) { this.sync(top); }\n this.needsBlock = oldNeedsBlock;\n } else {\n this.addElementByRule(dom, rule, rule.consuming === false ? ruleID : null);\n }\n};\n\n// Called for leaf DOM nodes that would otherwise be ignored\nParseContext.prototype.leafFallback = function leafFallback (dom) {\n if (dom.nodeName == \"BR\" && this.top.type && this.top.type.inlineContent)\n { this.addTextNode(dom.ownerDocument.createTextNode(\"\\n\")); }\n};\n\n// Run any style parser associated with the node's styles. Either\n// return an array of marks, or null to indicate some of the styles\n// had a rule with `ignore` set.\nParseContext.prototype.readStyles = function readStyles (styles) {\n var marks = Mark.none;\n style: for (var i = 0; i < styles.length; i += 2) {\n for (var after = null;;) {\n var rule = this.parser.matchStyle(styles[i], styles[i + 1], this, after);\n if (!rule) { continue style }\n if (rule.ignore) { return null }\n marks = this.parser.schema.marks[rule.mark].create(rule.attrs).addToSet(marks);\n if (rule.consuming === false) { after = rule; }\n else { break }\n }\n }\n return marks\n};\n\n// : (dom.Element, ParseRule) → bool\n// Look up a handler for the given node. If none are found, return\n// false. Otherwise, apply it, use its return value to drive the way\n// the node's content is wrapped, and return true.\nParseContext.prototype.addElementByRule = function addElementByRule (dom, rule, continueAfter) {\n var this$1 = this;\n\n var sync, nodeType, markType, mark;\n if (rule.node) {\n nodeType = this.parser.schema.nodes[rule.node];\n if (!nodeType.isLeaf) {\n sync = this.enter(nodeType, rule.attrs, rule.preserveWhitespace);\n } else if (!this.insertNode(nodeType.create(rule.attrs))) {\n this.leafFallback(dom);\n }\n } else {\n markType = this.parser.schema.marks[rule.mark];\n mark = markType.create(rule.attrs);\n this.addPendingMark(mark);\n }\n var startIn = this.top;\n\n if (nodeType && nodeType.isLeaf) {\n this.findInside(dom);\n } else if (continueAfter) {\n this.addElement(dom, continueAfter);\n } else if (rule.getContent) {\n this.findInside(dom);\n rule.getContent(dom, this.parser.schema).forEach(function (node) { return this$1.insertNode(node); });\n } else {\n var contentDOM = rule.contentElement;\n if (typeof contentDOM == \"string\") { contentDOM = dom.querySelector(contentDOM); }\n else if (typeof contentDOM == \"function\") { contentDOM = contentDOM(dom); }\n if (!contentDOM) { contentDOM = dom; }\n this.findAround(dom, contentDOM, true);\n this.addAll(contentDOM, sync);\n }\n if (sync) { this.sync(startIn); this.open--; }\n if (mark) { this.removePendingMark(mark, startIn); }\n};\n\n// : (dom.Node, ?NodeBuilder, ?number, ?number)\n// Add all child nodes between `startIndex` and `endIndex` (or the\n// whole node, if not given). If `sync` is passed, use it to\n// synchronize after every block element.\nParseContext.prototype.addAll = function addAll (parent, sync, startIndex, endIndex) {\n var index = startIndex || 0;\n for (var dom = startIndex ? parent.childNodes[startIndex] : parent.firstChild,\n end = endIndex == null ? null : parent.childNodes[endIndex];\n dom != end; dom = dom.nextSibling, ++index) {\n this.findAtPoint(parent, index);\n this.addDOM(dom);\n if (sync && blockTags.hasOwnProperty(dom.nodeName.toLowerCase()))\n { this.sync(sync); }\n }\n this.findAtPoint(parent, index);\n};\n\n// Try to find a way to fit the given node type into the current\n// context. May add intermediate wrappers and/or leave non-solid\n// nodes that we're in.\nParseContext.prototype.findPlace = function findPlace (node) {\n var route, sync;\n for (var depth = this.open; depth >= 0; depth--) {\n var cx = this.nodes[depth];\n var found = cx.findWrapping(node);\n if (found && (!route || route.length > found.length)) {\n route = found;\n sync = cx;\n if (!found.length) { break }\n }\n if (cx.solid) { break }\n }\n if (!route) { return false }\n this.sync(sync);\n for (var i = 0; i < route.length; i++)\n { this.enterInner(route[i], null, false); }\n return true\n};\n\n// : (Node) → ?Node\n// Try to insert the given node, adjusting the context when needed.\nParseContext.prototype.insertNode = function insertNode (node) {\n if (node.isInline && this.needsBlock && !this.top.type) {\n var block = this.textblockFromContext();\n if (block) { this.enterInner(block); }\n }\n if (this.findPlace(node)) {\n this.closeExtra();\n var top = this.top;\n top.applyPending(node.type);\n if (top.match) { top.match = top.match.matchType(node.type); }\n var marks = top.activeMarks;\n for (var i = 0; i < node.marks.length; i++)\n { if (!top.type || top.type.allowsMarkType(node.marks[i].type))\n { marks = node.marks[i].addToSet(marks); } }\n top.content.push(node.mark(marks));\n return true\n }\n return false\n};\n\n// : (NodeType, ?Object) → bool\n// Try to start a node of the given type, adjusting the context when\n// necessary.\nParseContext.prototype.enter = function enter (type, attrs, preserveWS) {\n var ok = this.findPlace(type.create(attrs));\n if (ok) { this.enterInner(type, attrs, true, preserveWS); }\n return ok\n};\n\n// Open a node of the given type\nParseContext.prototype.enterInner = function enterInner (type, attrs, solid, preserveWS) {\n this.closeExtra();\n var top = this.top;\n top.applyPending(type);\n top.match = top.match && top.match.matchType(type, attrs);\n var options = preserveWS == null ? top.options & ~OPT_OPEN_LEFT : wsOptionsFor(preserveWS);\n if ((top.options & OPT_OPEN_LEFT) && top.content.length == 0) { options |= OPT_OPEN_LEFT; }\n this.nodes.push(new NodeContext(type, attrs, top.activeMarks, top.pendingMarks, solid, null, options));\n this.open++;\n};\n\n// Make sure all nodes above this.open are finished and added to\n// their parents\nParseContext.prototype.closeExtra = function closeExtra (openEnd) {\n var i = this.nodes.length - 1;\n if (i > this.open) {\n for (; i > this.open; i--) { this.nodes[i - 1].content.push(this.nodes[i].finish(openEnd)); }\n this.nodes.length = this.open + 1;\n }\n};\n\nParseContext.prototype.finish = function finish () {\n this.open = 0;\n this.closeExtra(this.isOpen);\n return this.nodes[0].finish(this.isOpen || this.options.topOpen)\n};\n\nParseContext.prototype.sync = function sync (to) {\n for (var i = this.open; i >= 0; i--) { if (this.nodes[i] == to) {\n this.open = i;\n return\n } }\n};\n\nprototypeAccessors$6.currentPos.get = function () {\n this.closeExtra();\n var pos = 0;\n for (var i = this.open; i >= 0; i--) {\n var content = this.nodes[i].content;\n for (var j = content.length - 1; j >= 0; j--)\n { pos += content[j].nodeSize; }\n if (i) { pos++; }\n }\n return pos\n};\n\nParseContext.prototype.findAtPoint = function findAtPoint (parent, offset) {\n if (this.find) { for (var i = 0; i < this.find.length; i++) {\n if (this.find[i].node == parent && this.find[i].offset == offset)\n { this.find[i].pos = this.currentPos; }\n } }\n};\n\nParseContext.prototype.findInside = function findInside (parent) {\n if (this.find) { for (var i = 0; i < this.find.length; i++) {\n if (this.find[i].pos == null && parent.nodeType == 1 && parent.contains(this.find[i].node))\n { this.find[i].pos = this.currentPos; }\n } }\n};\n\nParseContext.prototype.findAround = function findAround (parent, content, before) {\n if (parent != content && this.find) { for (var i = 0; i < this.find.length; i++) {\n if (this.find[i].pos == null && parent.nodeType == 1 && parent.contains(this.find[i].node)) {\n var pos = content.compareDocumentPosition(this.find[i].node);\n if (pos & (before ? 2 : 4))\n { this.find[i].pos = this.currentPos; }\n }\n } }\n};\n\nParseContext.prototype.findInText = function findInText (textNode) {\n if (this.find) { for (var i = 0; i < this.find.length; i++) {\n if (this.find[i].node == textNode)\n { this.find[i].pos = this.currentPos - (textNode.nodeValue.length - this.find[i].offset); }\n } }\n};\n\n// : (string) → bool\n// Determines whether the given [context\n// string](#ParseRule.context) matches this context.\nParseContext.prototype.matchesContext = function matchesContext (context) {\n var this$1 = this;\n\n if (context.indexOf(\"|\") > -1)\n { return context.split(/\\s*\\|\\s*/).some(this.matchesContext, this) }\n\n var parts = context.split(\"/\");\n var option = this.options.context;\n var useRoot = !this.isOpen && (!option || option.parent.type == this.nodes[0].type);\n var minDepth = -(option ? option.depth + 1 : 0) + (useRoot ? 0 : 1);\n var match = function (i, depth) {\n for (; i >= 0; i--) {\n var part = parts[i];\n if (part == \"\") {\n if (i == parts.length - 1 || i == 0) { continue }\n for (; depth >= minDepth; depth--)\n { if (match(i - 1, depth)) { return true } }\n return false\n } else {\n var next = depth > 0 || (depth == 0 && useRoot) ? this$1.nodes[depth].type\n : option && depth >= minDepth ? option.node(depth - minDepth).type\n : null;\n if (!next || (next.name != part && next.groups.indexOf(part) == -1))\n { return false }\n depth--;\n }\n }\n return true\n };\n return match(parts.length - 1, this.open)\n};\n\nParseContext.prototype.textblockFromContext = function textblockFromContext () {\n var $context = this.options.context;\n if ($context) { for (var d = $context.depth; d >= 0; d--) {\n var deflt = $context.node(d).contentMatchAt($context.indexAfter(d)).defaultType;\n if (deflt && deflt.isTextblock && deflt.defaultAttrs) { return deflt }\n } }\n for (var name in this.parser.schema.nodes) {\n var type = this.parser.schema.nodes[name];\n if (type.isTextblock && type.defaultAttrs) { return type }\n }\n};\n\nParseContext.prototype.addPendingMark = function addPendingMark (mark) {\n var found = findSameMarkInSet(mark, this.top.pendingMarks);\n if (found) { this.top.stashMarks.push(found); }\n this.top.pendingMarks = mark.addToSet(this.top.pendingMarks);\n};\n\nParseContext.prototype.removePendingMark = function removePendingMark (mark, upto) {\n for (var depth = this.open; depth >= 0; depth--) {\n var level = this.nodes[depth];\n var found = level.pendingMarks.lastIndexOf(mark);\n if (found > -1) {\n level.pendingMarks = mark.removeFromSet(level.pendingMarks);\n } else {\n level.activeMarks = mark.removeFromSet(level.activeMarks);\n var stashMark = level.popFromStashMark(mark);\n if (stashMark && level.type && level.type.allowsMarkType(stashMark.type))\n { level.activeMarks = stashMark.addToSet(level.activeMarks); }\n }\n if (level == upto) { break }\n }\n};\n\nObject.defineProperties( ParseContext.prototype, prototypeAccessors$6 );\n\n// Kludge to work around directly nested list nodes produced by some\n// tools and allowed by browsers to mean that the nested list is\n// actually part of the list item above it.\nfunction normalizeList(dom) {\n for (var child = dom.firstChild, prevItem = null; child; child = child.nextSibling) {\n var name = child.nodeType == 1 ? child.nodeName.toLowerCase() : null;\n if (name && listTags.hasOwnProperty(name) && prevItem) {\n prevItem.appendChild(child);\n child = prevItem;\n } else if (name == \"li\") {\n prevItem = child;\n } else if (name) {\n prevItem = null;\n }\n }\n}\n\n// Apply a CSS selector.\nfunction matches(dom, selector) {\n return (dom.matches || dom.msMatchesSelector || dom.webkitMatchesSelector || dom.mozMatchesSelector).call(dom, selector)\n}\n\n// : (string) → [string]\n// Tokenize a style attribute into property/value pairs.\nfunction parseStyles(style) {\n var re = /\\s*([\\w-]+)\\s*:\\s*([^;]+)/g, m, result = [];\n while (m = re.exec(style)) { result.push(m[1], m[2].trim()); }\n return result\n}\n\nfunction copy(obj) {\n var copy = {};\n for (var prop in obj) { copy[prop] = obj[prop]; }\n return copy\n}\n\n// Used when finding a mark at the top level of a fragment parse.\n// Checks whether it would be reasonable to apply a given mark type to\n// a given node, by looking at the way the mark occurs in the schema.\nfunction markMayApply(markType, nodeType) {\n var nodes = nodeType.schema.nodes;\n var loop = function ( name ) {\n var parent = nodes[name];\n if (!parent.allowsMarkType(markType)) { return }\n var seen = [], scan = function (match) {\n seen.push(match);\n for (var i = 0; i < match.edgeCount; i++) {\n var ref = match.edge(i);\n var type = ref.type;\n var next = ref.next;\n if (type == nodeType) { return true }\n if (seen.indexOf(next) < 0 && scan(next)) { return true }\n }\n };\n if (scan(parent.contentMatch)) { return { v: true } }\n };\n\n for (var name in nodes) {\n var returned = loop( name );\n\n if ( returned ) return returned.v;\n }\n}\n\nfunction findSameMarkInSet(mark, set) {\n for (var i = 0; i < set.length; i++) {\n if (mark.eq(set[i])) { return set[i] }\n }\n}\n\n// DOMOutputSpec:: interface\n// A description of a DOM structure. Can be either a string, which is\n// interpreted as a text node, a DOM node, which is interpreted as\n// itself, a `{dom: Node, contentDOM: ?Node}` object, or an array.\n//\n// An array describes a DOM element. The first value in the array\n// should be a string—the name of the DOM element, optionally prefixed\n// by a namespace URL and a space. If the second element is plain\n// object, it is interpreted as a set of attributes for the element.\n// Any elements after that (including the 2nd if it's not an attribute\n// object) are interpreted as children of the DOM elements, and must\n// either be valid `DOMOutputSpec` values, or the number zero.\n//\n// The number zero (pronounced “hole”) is used to indicate the place\n// where a node's child nodes should be inserted. If it occurs in an\n// output spec, it should be the only child element in its parent\n// node.\n\n// ::- A DOM serializer knows how to convert ProseMirror nodes and\n// marks of various types to DOM nodes.\nvar DOMSerializer = function DOMSerializer(nodes, marks) {\n // :: Object<(node: Node) → DOMOutputSpec>\n // The node serialization functions.\n this.nodes = nodes || {};\n // :: Object\n // The mark serialization functions.\n this.marks = marks || {};\n};\n\n// :: (Fragment, ?Object) → dom.DocumentFragment\n// Serialize the content of this fragment to a DOM fragment. When\n// not in the browser, the `document` option, containing a DOM\n// document, should be passed so that the serializer can create\n// nodes.\nDOMSerializer.prototype.serializeFragment = function serializeFragment (fragment, options, target) {\n var this$1 = this;\n if ( options === void 0 ) options = {};\n\n if (!target) { target = doc(options).createDocumentFragment(); }\n\n var top = target, active = null;\n fragment.forEach(function (node) {\n if (active || node.marks.length) {\n if (!active) { active = []; }\n var keep = 0, rendered = 0;\n while (keep < active.length && rendered < node.marks.length) {\n var next = node.marks[rendered];\n if (!this$1.marks[next.type.name]) { rendered++; continue }\n if (!next.eq(active[keep]) || next.type.spec.spanning === false) { break }\n keep += 2; rendered++;\n }\n while (keep < active.length) {\n top = active.pop();\n active.pop();\n }\n while (rendered < node.marks.length) {\n var add = node.marks[rendered++];\n var markDOM = this$1.serializeMark(add, node.isInline, options);\n if (markDOM) {\n active.push(add, top);\n top.appendChild(markDOM.dom);\n top = markDOM.contentDOM || markDOM.dom;\n }\n }\n }\n top.appendChild(this$1.serializeNode(node, options));\n });\n\n return target\n};\n\n// :: (Node, ?Object) → dom.Node\n// Serialize this node to a DOM node. This can be useful when you\n// need to serialize a part of a document, as opposed to the whole\n// document. To serialize a whole document, use\n// [`serializeFragment`](#model.DOMSerializer.serializeFragment) on\n// its [content](#model.Node.content).\nDOMSerializer.prototype.serializeNode = function serializeNode (node, options) {\n if ( options === void 0 ) options = {};\n\n var ref =\n DOMSerializer.renderSpec(doc(options), this.nodes[node.type.name](node));\n var dom = ref.dom;\n var contentDOM = ref.contentDOM;\n if (contentDOM) {\n if (node.isLeaf)\n { throw new RangeError(\"Content hole not allowed in a leaf node spec\") }\n if (options.onContent)\n { options.onContent(node, contentDOM, options); }\n else\n { this.serializeFragment(node.content, options, contentDOM); }\n }\n return dom\n};\n\nDOMSerializer.prototype.serializeNodeAndMarks = function serializeNodeAndMarks (node, options) {\n if ( options === void 0 ) options = {};\n\n var dom = this.serializeNode(node, options);\n for (var i = node.marks.length - 1; i >= 0; i--) {\n var wrap = this.serializeMark(node.marks[i], node.isInline, options);\n if (wrap) {\n(wrap.contentDOM || wrap.dom).appendChild(dom);\n dom = wrap.dom;\n }\n }\n return dom\n};\n\nDOMSerializer.prototype.serializeMark = function serializeMark (mark, inline, options) {\n if ( options === void 0 ) options = {};\n\n var toDOM = this.marks[mark.type.name];\n return toDOM && DOMSerializer.renderSpec(doc(options), toDOM(mark, inline))\n};\n\n// :: (dom.Document, DOMOutputSpec) → {dom: dom.Node, contentDOM: ?dom.Node}\n// Render an [output spec](#model.DOMOutputSpec) to a DOM node. If\n// the spec has a hole (zero) in it, `contentDOM` will point at the\n// node with the hole.\nDOMSerializer.renderSpec = function renderSpec (doc, structure, xmlNS) {\n if ( xmlNS === void 0 ) xmlNS = null;\n\n if (typeof structure == \"string\")\n { return {dom: doc.createTextNode(structure)} }\n if (structure.nodeType != null)\n { return {dom: structure} }\n if (structure.dom && structure.dom.nodeType != null)\n { return structure }\n var tagName = structure[0], space = tagName.indexOf(\" \");\n if (space > 0) {\n xmlNS = tagName.slice(0, space);\n tagName = tagName.slice(space + 1);\n }\n var contentDOM = null, dom = xmlNS ? doc.createElementNS(xmlNS, tagName) : doc.createElement(tagName);\n var attrs = structure[1], start = 1;\n if (attrs && typeof attrs == \"object\" && attrs.nodeType == null && !Array.isArray(attrs)) {\n start = 2;\n for (var name in attrs) { if (attrs[name] != null) {\n var space$1 = name.indexOf(\" \");\n if (space$1 > 0) { dom.setAttributeNS(name.slice(0, space$1), name.slice(space$1 + 1), attrs[name]); }\n else { dom.setAttribute(name, attrs[name]); }\n } }\n }\n for (var i = start; i < structure.length; i++) {\n var child = structure[i];\n if (child === 0) {\n if (i < structure.length - 1 || i > start)\n { throw new RangeError(\"Content hole must be the only child of its parent node\") }\n return {dom: dom, contentDOM: dom}\n } else {\n var ref = DOMSerializer.renderSpec(doc, child, xmlNS);\n var inner = ref.dom;\n var innerContent = ref.contentDOM;\n dom.appendChild(inner);\n if (innerContent) {\n if (contentDOM) { throw new RangeError(\"Multiple content holes\") }\n contentDOM = innerContent;\n }\n }\n }\n return {dom: dom, contentDOM: contentDOM}\n};\n\n// :: (Schema) → DOMSerializer\n// Build a serializer using the [`toDOM`](#model.NodeSpec.toDOM)\n// properties in a schema's node and mark specs.\nDOMSerializer.fromSchema = function fromSchema (schema) {\n return schema.cached.domSerializer ||\n (schema.cached.domSerializer = new DOMSerializer(this.nodesFromSchema(schema), this.marksFromSchema(schema)))\n};\n\n// : (Schema) → Object<(node: Node) → DOMOutputSpec>\n// Gather the serializers in a schema's node specs into an object.\n// This can be useful as a base to build a custom serializer from.\nDOMSerializer.nodesFromSchema = function nodesFromSchema (schema) {\n var result = gatherToDOM(schema.nodes);\n if (!result.text) { result.text = function (node) { return node.text; }; }\n return result\n};\n\n// : (Schema) → Object<(mark: Mark) → DOMOutputSpec>\n// Gather the serializers in a schema's mark specs into an object.\nDOMSerializer.marksFromSchema = function marksFromSchema (schema) {\n return gatherToDOM(schema.marks)\n};\n\nfunction gatherToDOM(obj) {\n var result = {};\n for (var name in obj) {\n var toDOM = obj[name].spec.toDOM;\n if (toDOM) { result[name] = toDOM; }\n }\n return result\n}\n\nfunction doc(options) {\n // declare global: window\n return options.document || window.document\n}\n\nexport { ContentMatch, DOMParser, DOMSerializer, Fragment, Mark, MarkType, Node, NodeRange, NodeType, ReplaceError, ResolvedPos, Schema, Slice };\n//# sourceMappingURL=index.es.js.map\n","import { ReplaceError, Slice, Fragment, MarkType } from 'prosemirror-model';\n\n// Mappable:: interface\n// There are several things that positions can be mapped through.\n// Such objects conform to this interface.\n//\n// map:: (pos: number, assoc: ?number) → number\n// Map a position through this object. When given, `assoc` (should\n// be -1 or 1, defaults to 1) determines with which side the\n// position is associated, which determines in which direction to\n// move when a chunk of content is inserted at the mapped position.\n//\n// mapResult:: (pos: number, assoc: ?number) → MapResult\n// Map a position, and return an object containing additional\n// information about the mapping. The result's `deleted` field tells\n// you whether the position was deleted (completely enclosed in a\n// replaced range) during the mapping. When content on only one side\n// is deleted, the position itself is only considered deleted when\n// `assoc` points in the direction of the deleted content.\n\n// Recovery values encode a range index and an offset. They are\n// represented as numbers, because tons of them will be created when\n// mapping, for example, a large number of decorations. The number's\n// lower 16 bits provide the index, the remaining bits the offset.\n//\n// Note: We intentionally don't use bit shift operators to en- and\n// decode these, since those clip to 32 bits, which we might in rare\n// cases want to overflow. A 64-bit float can represent 48-bit\n// integers precisely.\n\nvar lower16 = 0xffff;\nvar factor16 = Math.pow(2, 16);\n\nfunction makeRecover(index, offset) { return index + offset * factor16 }\nfunction recoverIndex(value) { return value & lower16 }\nfunction recoverOffset(value) { return (value - (value & lower16)) / factor16 }\n\n// ::- An object representing a mapped position with extra\n// information.\nvar MapResult = function MapResult(pos, deleted, recover) {\n if ( deleted === void 0 ) deleted = false;\n if ( recover === void 0 ) recover = null;\n\n // :: number The mapped version of the position.\n this.pos = pos;\n // :: bool Tells you whether the position was deleted, that is,\n // whether the step removed its surroundings from the document.\n this.deleted = deleted;\n this.recover = recover;\n};\n\n// :: class extends Mappable\n// A map describing the deletions and insertions made by a step, which\n// can be used to find the correspondence between positions in the\n// pre-step version of a document and the same position in the\n// post-step version.\nvar StepMap = function StepMap(ranges, inverted) {\n if ( inverted === void 0 ) inverted = false;\n\n this.ranges = ranges;\n this.inverted = inverted;\n};\n\nStepMap.prototype.recover = function recover (value) {\n var diff = 0, index = recoverIndex(value);\n if (!this.inverted) { for (var i = 0; i < index; i++)\n { diff += this.ranges[i * 3 + 2] - this.ranges[i * 3 + 1]; } }\n return this.ranges[index * 3] + diff + recoverOffset(value)\n};\n\n// : (number, ?number) → MapResult\nStepMap.prototype.mapResult = function mapResult (pos, assoc) {\n if ( assoc === void 0 ) assoc = 1;\n return this._map(pos, assoc, false) };\n\n// : (number, ?number) → number\nStepMap.prototype.map = function map (pos, assoc) {\n if ( assoc === void 0 ) assoc = 1;\n return this._map(pos, assoc, true) };\n\nStepMap.prototype._map = function _map (pos, assoc, simple) {\n var diff = 0, oldIndex = this.inverted ? 2 : 1, newIndex = this.inverted ? 1 : 2;\n for (var i = 0; i < this.ranges.length; i += 3) {\n var start = this.ranges[i] - (this.inverted ? diff : 0);\n if (start > pos) { break }\n var oldSize = this.ranges[i + oldIndex], newSize = this.ranges[i + newIndex], end = start + oldSize;\n if (pos <= end) {\n var side = !oldSize ? assoc : pos == start ? -1 : pos == end ? 1 : assoc;\n var result = start + diff + (side < 0 ? 0 : newSize);\n if (simple) { return result }\n var recover = pos == (assoc < 0 ? start : end) ? null : makeRecover(i / 3, pos - start);\n return new MapResult(result, assoc < 0 ? pos != start : pos != end, recover)\n }\n diff += newSize - oldSize;\n }\n return simple ? pos + diff : new MapResult(pos + diff)\n};\n\nStepMap.prototype.touches = function touches (pos, recover) {\n var diff = 0, index = recoverIndex(recover);\n var oldIndex = this.inverted ? 2 : 1, newIndex = this.inverted ? 1 : 2;\n for (var i = 0; i < this.ranges.length; i += 3) {\n var start = this.ranges[i] - (this.inverted ? diff : 0);\n if (start > pos) { break }\n var oldSize = this.ranges[i + oldIndex], end = start + oldSize;\n if (pos <= end && i == index * 3) { return true }\n diff += this.ranges[i + newIndex] - oldSize;\n }\n return false\n};\n\n// :: ((oldStart: number, oldEnd: number, newStart: number, newEnd: number))\n// Calls the given function on each of the changed ranges included in\n// this map.\nStepMap.prototype.forEach = function forEach (f) {\n var oldIndex = this.inverted ? 2 : 1, newIndex = this.inverted ? 1 : 2;\n for (var i = 0, diff = 0; i < this.ranges.length; i += 3) {\n var start = this.ranges[i], oldStart = start - (this.inverted ? diff : 0), newStart = start + (this.inverted ? 0 : diff);\n var oldSize = this.ranges[i + oldIndex], newSize = this.ranges[i + newIndex];\n f(oldStart, oldStart + oldSize, newStart, newStart + newSize);\n diff += newSize - oldSize;\n }\n};\n\n// :: () → StepMap\n// Create an inverted version of this map. The result can be used to\n// map positions in the post-step document to the pre-step document.\nStepMap.prototype.invert = function invert () {\n return new StepMap(this.ranges, !this.inverted)\n};\n\nStepMap.prototype.toString = function toString () {\n return (this.inverted ? \"-\" : \"\") + JSON.stringify(this.ranges)\n};\n\n// :: (n: number) → StepMap\n// Create a map that moves all positions by offset `n` (which may be\n// negative). This can be useful when applying steps meant for a\n// sub-document to a larger document, or vice-versa.\nStepMap.offset = function offset (n) {\n return n == 0 ? StepMap.empty : new StepMap(n < 0 ? [0, -n, 0] : [0, 0, n])\n};\n\nStepMap.empty = new StepMap([]);\n\n// :: class extends Mappable\n// A mapping represents a pipeline of zero or more [step\n// maps](#transform.StepMap). It has special provisions for losslessly\n// handling mapping positions through a series of steps in which some\n// steps are inverted versions of earlier steps. (This comes up when\n// ‘[rebasing](/docs/guide/#transform.rebasing)’ steps for\n// collaboration or history management.)\nvar Mapping = function Mapping(maps, mirror, from, to) {\n // :: [StepMap]\n // The step maps in this mapping.\n this.maps = maps || [];\n // :: number\n // The starting position in the `maps` array, used when `map` or\n // `mapResult` is called.\n this.from = from || 0;\n // :: number\n // The end position in the `maps` array.\n this.to = to == null ? this.maps.length : to;\n this.mirror = mirror;\n};\n\n// :: (?number, ?number) → Mapping\n// Create a mapping that maps only through a part of this one.\nMapping.prototype.slice = function slice (from, to) {\n if ( from === void 0 ) from = 0;\n if ( to === void 0 ) to = this.maps.length;\n\n return new Mapping(this.maps, this.mirror, from, to)\n};\n\nMapping.prototype.copy = function copy () {\n return new Mapping(this.maps.slice(), this.mirror && this.mirror.slice(), this.from, this.to)\n};\n\n// :: (StepMap, ?number)\n// Add a step map to the end of this mapping. If `mirrors` is\n// given, it should be the index of the step map that is the mirror\n// image of this one.\nMapping.prototype.appendMap = function appendMap (map, mirrors) {\n this.to = this.maps.push(map);\n if (mirrors != null) { this.setMirror(this.maps.length - 1, mirrors); }\n};\n\n// :: (Mapping)\n// Add all the step maps in a given mapping to this one (preserving\n// mirroring information).\nMapping.prototype.appendMapping = function appendMapping (mapping) {\n for (var i = 0, startSize = this.maps.length; i < mapping.maps.length; i++) {\n var mirr = mapping.getMirror(i);\n this.appendMap(mapping.maps[i], mirr != null && mirr < i ? startSize + mirr : null);\n }\n};\n\n// :: (number) → ?number\n// Finds the offset of the step map that mirrors the map at the\n// given offset, in this mapping (as per the second argument to\n// `appendMap`).\nMapping.prototype.getMirror = function getMirror (n) {\n if (this.mirror) { for (var i = 0; i < this.mirror.length; i++)\n { if (this.mirror[i] == n) { return this.mirror[i + (i % 2 ? -1 : 1)] } } }\n};\n\nMapping.prototype.setMirror = function setMirror (n, m) {\n if (!this.mirror) { this.mirror = []; }\n this.mirror.push(n, m);\n};\n\n// :: (Mapping)\n// Append the inverse of the given mapping to this one.\nMapping.prototype.appendMappingInverted = function appendMappingInverted (mapping) {\n for (var i = mapping.maps.length - 1, totalSize = this.maps.length + mapping.maps.length; i >= 0; i--) {\n var mirr = mapping.getMirror(i);\n this.appendMap(mapping.maps[i].invert(), mirr != null && mirr > i ? totalSize - mirr - 1 : null);\n }\n};\n\n// :: () → Mapping\n// Create an inverted version of this mapping.\nMapping.prototype.invert = function invert () {\n var inverse = new Mapping;\n inverse.appendMappingInverted(this);\n return inverse\n};\n\n// : (number, ?number) → number\n// Map a position through this mapping.\nMapping.prototype.map = function map (pos, assoc) {\n if ( assoc === void 0 ) assoc = 1;\n\n if (this.mirror) { return this._map(pos, assoc, true) }\n for (var i = this.from; i < this.to; i++)\n { pos = this.maps[i].map(pos, assoc); }\n return pos\n};\n\n// : (number, ?number) → MapResult\n// Map a position through this mapping, returning a mapping\n// result.\nMapping.prototype.mapResult = function mapResult (pos, assoc) {\n if ( assoc === void 0 ) assoc = 1;\n return this._map(pos, assoc, false) };\n\nMapping.prototype._map = function _map (pos, assoc, simple) {\n var deleted = false;\n\n for (var i = this.from; i < this.to; i++) {\n var map = this.maps[i], result = map.mapResult(pos, assoc);\n if (result.recover != null) {\n var corr = this.getMirror(i);\n if (corr != null && corr > i && corr < this.to) {\n i = corr;\n pos = this.maps[corr].recover(result.recover);\n continue\n }\n }\n\n if (result.deleted) { deleted = true; }\n pos = result.pos;\n }\n\n return simple ? pos : new MapResult(pos, deleted)\n};\n\nfunction TransformError(message) {\n var err = Error.call(this, message);\n err.__proto__ = TransformError.prototype;\n return err\n}\n\nTransformError.prototype = Object.create(Error.prototype);\nTransformError.prototype.constructor = TransformError;\nTransformError.prototype.name = \"TransformError\";\n\n// ::- Abstraction to build up and track an array of\n// [steps](#transform.Step) representing a document transformation.\n//\n// Most transforming methods return the `Transform` object itself, so\n// that they can be chained.\nvar Transform = function Transform(doc) {\n // :: Node\n // The current document (the result of applying the steps in the\n // transform).\n this.doc = doc;\n // :: [Step]\n // The steps in this transform.\n this.steps = [];\n // :: [Node]\n // The documents before each of the steps.\n this.docs = [];\n // :: Mapping\n // A mapping with the maps for each of the steps in this transform.\n this.mapping = new Mapping;\n};\n\nvar prototypeAccessors = { before: { configurable: true },docChanged: { configurable: true } };\n\n// :: Node The starting document.\nprototypeAccessors.before.get = function () { return this.docs.length ? this.docs[0] : this.doc };\n\n// :: (step: Step) → this\n// Apply a new step in this transform, saving the result. Throws an\n// error when the step fails.\nTransform.prototype.step = function step (object) {\n var result = this.maybeStep(object);\n if (result.failed) { throw new TransformError(result.failed) }\n return this\n};\n\n// :: (Step) → StepResult\n// Try to apply a step in this transformation, ignoring it if it\n// fails. Returns the step result.\nTransform.prototype.maybeStep = function maybeStep (step) {\n var result = step.apply(this.doc);\n if (!result.failed) { this.addStep(step, result.doc); }\n return result\n};\n\n// :: bool\n// True when the document has been changed (when there are any\n// steps).\nprototypeAccessors.docChanged.get = function () {\n return this.steps.length > 0\n};\n\nTransform.prototype.addStep = function addStep (step, doc) {\n this.docs.push(this.doc);\n this.steps.push(step);\n this.mapping.appendMap(step.getMap());\n this.doc = doc;\n};\n\nObject.defineProperties( Transform.prototype, prototypeAccessors );\n\nfunction mustOverride() { throw new Error(\"Override me\") }\n\nvar stepsByID = Object.create(null);\n\n// ::- A step object represents an atomic change. It generally applies\n// only to the document it was created for, since the positions\n// stored in it will only make sense for that document.\n//\n// New steps are defined by creating classes that extend `Step`,\n// overriding the `apply`, `invert`, `map`, `getMap` and `fromJSON`\n// methods, and registering your class with a unique\n// JSON-serialization identifier using\n// [`Step.jsonID`](#transform.Step^jsonID).\nvar Step = function Step () {};\n\nStep.prototype.apply = function apply (_doc) { return mustOverride() };\n\n// :: () → StepMap\n// Get the step map that represents the changes made by this step,\n// and which can be used to transform between positions in the old\n// and the new document.\nStep.prototype.getMap = function getMap () { return StepMap.empty };\n\n// :: (doc: Node) → Step\n// Create an inverted version of this step. Needs the document as it\n// was before the step as argument.\nStep.prototype.invert = function invert (_doc) { return mustOverride() };\n\n// :: (mapping: Mappable) → ?Step\n// Map this step through a mappable thing, returning either a\n// version of that step with its positions adjusted, or `null` if\n// the step was entirely deleted by the mapping.\nStep.prototype.map = function map (_mapping) { return mustOverride() };\n\n// :: (other: Step) → ?Step\n// Try to merge this step with another one, to be applied directly\n// after it. Returns the merged step when possible, null if the\n// steps can't be merged.\nStep.prototype.merge = function merge (_other) { return null };\n\n// :: () → Object\n// Create a JSON-serializeable representation of this step. When\n// defining this for a custom subclass, make sure the result object\n// includes the step type's [JSON id](#transform.Step^jsonID) under\n// the `stepType` property.\nStep.prototype.toJSON = function toJSON () { return mustOverride() };\n\n// :: (Schema, Object) → Step\n// Deserialize a step from its JSON representation. Will call\n// through to the step class' own implementation of this method.\nStep.fromJSON = function fromJSON (schema, json) {\n if (!json || !json.stepType) { throw new RangeError(\"Invalid input for Step.fromJSON\") }\n var type = stepsByID[json.stepType];\n if (!type) { throw new RangeError((\"No step type \" + (json.stepType) + \" defined\")) }\n return type.fromJSON(schema, json)\n};\n\n// :: (string, constructor)\n// To be able to serialize steps to JSON, each step needs a string\n// ID to attach to its JSON representation. Use this method to\n// register an ID for your step classes. Try to pick something\n// that's unlikely to clash with steps from other modules.\nStep.jsonID = function jsonID (id, stepClass) {\n if (id in stepsByID) { throw new RangeError(\"Duplicate use of step JSON ID \" + id) }\n stepsByID[id] = stepClass;\n stepClass.prototype.jsonID = id;\n return stepClass\n};\n\n// ::- The result of [applying](#transform.Step.apply) a step. Contains either a\n// new document or a failure value.\nvar StepResult = function StepResult(doc, failed) {\n // :: ?Node The transformed document.\n this.doc = doc;\n // :: ?string Text providing information about a failed step.\n this.failed = failed;\n};\n\n// :: (Node) → StepResult\n// Create a successful step result.\nStepResult.ok = function ok (doc) { return new StepResult(doc, null) };\n\n// :: (string) → StepResult\n// Create a failed step result.\nStepResult.fail = function fail (message) { return new StepResult(null, message) };\n\n// :: (Node, number, number, Slice) → StepResult\n// Call [`Node.replace`](#model.Node.replace) with the given\n// arguments. Create a successful result if it succeeds, and a\n// failed one if it throws a `ReplaceError`.\nStepResult.fromReplace = function fromReplace (doc, from, to, slice) {\n try {\n return StepResult.ok(doc.replace(from, to, slice))\n } catch (e) {\n if (e instanceof ReplaceError) { return StepResult.fail(e.message) }\n throw e\n }\n};\n\n// ::- Replace a part of the document with a slice of new content.\nvar ReplaceStep = /*@__PURE__*/(function (Step) {\n function ReplaceStep(from, to, slice, structure) {\n Step.call(this);\n this.from = from;\n this.to = to;\n this.slice = slice;\n this.structure = !!structure;\n }\n\n if ( Step ) ReplaceStep.__proto__ = Step;\n ReplaceStep.prototype = Object.create( Step && Step.prototype );\n ReplaceStep.prototype.constructor = ReplaceStep;\n\n ReplaceStep.prototype.apply = function apply (doc) {\n if (this.structure && contentBetween(doc, this.from, this.to))\n { return StepResult.fail(\"Structure replace would overwrite content\") }\n return StepResult.fromReplace(doc, this.from, this.to, this.slice)\n };\n\n ReplaceStep.prototype.getMap = function getMap () {\n return new StepMap([this.from, this.to - this.from, this.slice.size])\n };\n\n ReplaceStep.prototype.invert = function invert (doc) {\n return new ReplaceStep(this.from, this.from + this.slice.size, doc.slice(this.from, this.to))\n };\n\n ReplaceStep.prototype.map = function map (mapping) {\n var from = mapping.mapResult(this.from, 1), to = mapping.mapResult(this.to, -1);\n if (from.deleted && to.deleted) { return null }\n return new ReplaceStep(from.pos, Math.max(from.pos, to.pos), this.slice)\n };\n\n ReplaceStep.prototype.merge = function merge (other) {\n if (!(other instanceof ReplaceStep) || other.structure || this.structure) { return null }\n\n if (this.from + this.slice.size == other.from && !this.slice.openEnd && !other.slice.openStart) {\n var slice = this.slice.size + other.slice.size == 0 ? Slice.empty\n : new Slice(this.slice.content.append(other.slice.content), this.slice.openStart, other.slice.openEnd);\n return new ReplaceStep(this.from, this.to + (other.to - other.from), slice, this.structure)\n } else if (other.to == this.from && !this.slice.openStart && !other.slice.openEnd) {\n var slice$1 = this.slice.size + other.slice.size == 0 ? Slice.empty\n : new Slice(other.slice.content.append(this.slice.content), other.slice.openStart, this.slice.openEnd);\n return new ReplaceStep(other.from, this.to, slice$1, this.structure)\n } else {\n return null\n }\n };\n\n ReplaceStep.prototype.toJSON = function toJSON () {\n var json = {stepType: \"replace\", from: this.from, to: this.to};\n if (this.slice.size) { json.slice = this.slice.toJSON(); }\n if (this.structure) { json.structure = true; }\n return json\n };\n\n ReplaceStep.fromJSON = function fromJSON (schema, json) {\n if (typeof json.from != \"number\" || typeof json.to != \"number\")\n { throw new RangeError(\"Invalid input for ReplaceStep.fromJSON\") }\n return new ReplaceStep(json.from, json.to, Slice.fromJSON(schema, json.slice), !!json.structure)\n };\n\n return ReplaceStep;\n}(Step));\n\nStep.jsonID(\"replace\", ReplaceStep);\n\n// ::- Replace a part of the document with a slice of content, but\n// preserve a range of the replaced content by moving it into the\n// slice.\nvar ReplaceAroundStep = /*@__PURE__*/(function (Step) {\n function ReplaceAroundStep(from, to, gapFrom, gapTo, slice, insert, structure) {\n Step.call(this);\n this.from = from;\n this.to = to;\n this.gapFrom = gapFrom;\n this.gapTo = gapTo;\n this.slice = slice;\n this.insert = insert;\n this.structure = !!structure;\n }\n\n if ( Step ) ReplaceAroundStep.__proto__ = Step;\n ReplaceAroundStep.prototype = Object.create( Step && Step.prototype );\n ReplaceAroundStep.prototype.constructor = ReplaceAroundStep;\n\n ReplaceAroundStep.prototype.apply = function apply (doc) {\n if (this.structure && (contentBetween(doc, this.from, this.gapFrom) ||\n contentBetween(doc, this.gapTo, this.to)))\n { return StepResult.fail(\"Structure gap-replace would overwrite content\") }\n\n var gap = doc.slice(this.gapFrom, this.gapTo);\n if (gap.openStart || gap.openEnd)\n { return StepResult.fail(\"Gap is not a flat range\") }\n var inserted = this.slice.insertAt(this.insert, gap.content);\n if (!inserted) { return StepResult.fail(\"Content does not fit in gap\") }\n return StepResult.fromReplace(doc, this.from, this.to, inserted)\n };\n\n ReplaceAroundStep.prototype.getMap = function getMap () {\n return new StepMap([this.from, this.gapFrom - this.from, this.insert,\n this.gapTo, this.to - this.gapTo, this.slice.size - this.insert])\n };\n\n ReplaceAroundStep.prototype.invert = function invert (doc) {\n var gap = this.gapTo - this.gapFrom;\n return new ReplaceAroundStep(this.from, this.from + this.slice.size + gap,\n this.from + this.insert, this.from + this.insert + gap,\n doc.slice(this.from, this.to).removeBetween(this.gapFrom - this.from, this.gapTo - this.from),\n this.gapFrom - this.from, this.structure)\n };\n\n ReplaceAroundStep.prototype.map = function map (mapping) {\n var from = mapping.mapResult(this.from, 1), to = mapping.mapResult(this.to, -1);\n var gapFrom = mapping.map(this.gapFrom, -1), gapTo = mapping.map(this.gapTo, 1);\n if ((from.deleted && to.deleted) || gapFrom < from.pos || gapTo > to.pos) { return null }\n return new ReplaceAroundStep(from.pos, to.pos, gapFrom, gapTo, this.slice, this.insert, this.structure)\n };\n\n ReplaceAroundStep.prototype.toJSON = function toJSON () {\n var json = {stepType: \"replaceAround\", from: this.from, to: this.to,\n gapFrom: this.gapFrom, gapTo: this.gapTo, insert: this.insert};\n if (this.slice.size) { json.slice = this.slice.toJSON(); }\n if (this.structure) { json.structure = true; }\n return json\n };\n\n ReplaceAroundStep.fromJSON = function fromJSON (schema, json) {\n if (typeof json.from != \"number\" || typeof json.to != \"number\" ||\n typeof json.gapFrom != \"number\" || typeof json.gapTo != \"number\" || typeof json.insert != \"number\")\n { throw new RangeError(\"Invalid input for ReplaceAroundStep.fromJSON\") }\n return new ReplaceAroundStep(json.from, json.to, json.gapFrom, json.gapTo,\n Slice.fromJSON(schema, json.slice), json.insert, !!json.structure)\n };\n\n return ReplaceAroundStep;\n}(Step));\n\nStep.jsonID(\"replaceAround\", ReplaceAroundStep);\n\nfunction contentBetween(doc, from, to) {\n var $from = doc.resolve(from), dist = to - from, depth = $from.depth;\n while (dist > 0 && depth > 0 && $from.indexAfter(depth) == $from.node(depth).childCount) {\n depth--;\n dist--;\n }\n if (dist > 0) {\n var next = $from.node(depth).maybeChild($from.indexAfter(depth));\n while (dist > 0) {\n if (!next || next.isLeaf) { return true }\n next = next.firstChild;\n dist--;\n }\n }\n return false\n}\n\nfunction canCut(node, start, end) {\n return (start == 0 || node.canReplace(start, node.childCount)) &&\n (end == node.childCount || node.canReplace(0, end))\n}\n\n// :: (NodeRange) → ?number\n// Try to find a target depth to which the content in the given range\n// can be lifted. Will not go across\n// [isolating](#model.NodeSpec.isolating) parent nodes.\nfunction liftTarget(range) {\n var parent = range.parent;\n var content = parent.content.cutByIndex(range.startIndex, range.endIndex);\n for (var depth = range.depth;; --depth) {\n var node = range.$from.node(depth);\n var index = range.$from.index(depth), endIndex = range.$to.indexAfter(depth);\n if (depth < range.depth && node.canReplace(index, endIndex, content))\n { return depth }\n if (depth == 0 || node.type.spec.isolating || !canCut(node, index, endIndex)) { break }\n }\n}\n\n// :: (NodeRange, number) → this\n// Split the content in the given range off from its parent, if there\n// is sibling content before or after it, and move it up the tree to\n// the depth specified by `target`. You'll probably want to use\n// [`liftTarget`](#transform.liftTarget) to compute `target`, to make\n// sure the lift is valid.\nTransform.prototype.lift = function(range, target) {\n var $from = range.$from;\n var $to = range.$to;\n var depth = range.depth;\n\n var gapStart = $from.before(depth + 1), gapEnd = $to.after(depth + 1);\n var start = gapStart, end = gapEnd;\n\n var before = Fragment.empty, openStart = 0;\n for (var d = depth, splitting = false; d > target; d--)\n { if (splitting || $from.index(d) > 0) {\n splitting = true;\n before = Fragment.from($from.node(d).copy(before));\n openStart++;\n } else {\n start--;\n } }\n var after = Fragment.empty, openEnd = 0;\n for (var d$1 = depth, splitting$1 = false; d$1 > target; d$1--)\n { if (splitting$1 || $to.after(d$1 + 1) < $to.end(d$1)) {\n splitting$1 = true;\n after = Fragment.from($to.node(d$1).copy(after));\n openEnd++;\n } else {\n end++;\n } }\n\n return this.step(new ReplaceAroundStep(start, end, gapStart, gapEnd,\n new Slice(before.append(after), openStart, openEnd),\n before.size - openStart, true))\n};\n\n// :: (NodeRange, NodeType, ?Object, ?NodeRange) → ?[{type: NodeType, attrs: ?Object}]\n// Try to find a valid way to wrap the content in the given range in a\n// node of the given type. May introduce extra nodes around and inside\n// the wrapper node, if necessary. Returns null if no valid wrapping\n// could be found. When `innerRange` is given, that range's content is\n// used as the content to fit into the wrapping, instead of the\n// content of `range`.\nfunction findWrapping(range, nodeType, attrs, innerRange) {\n if ( innerRange === void 0 ) innerRange = range;\n\n var around = findWrappingOutside(range, nodeType);\n var inner = around && findWrappingInside(innerRange, nodeType);\n if (!inner) { return null }\n return around.map(withAttrs).concat({type: nodeType, attrs: attrs}).concat(inner.map(withAttrs))\n}\n\nfunction withAttrs(type) { return {type: type, attrs: null} }\n\nfunction findWrappingOutside(range, type) {\n var parent = range.parent;\n var startIndex = range.startIndex;\n var endIndex = range.endIndex;\n var around = parent.contentMatchAt(startIndex).findWrapping(type);\n if (!around) { return null }\n var outer = around.length ? around[0] : type;\n return parent.canReplaceWith(startIndex, endIndex, outer) ? around : null\n}\n\nfunction findWrappingInside(range, type) {\n var parent = range.parent;\n var startIndex = range.startIndex;\n var endIndex = range.endIndex;\n var inner = parent.child(startIndex);\n var inside = type.contentMatch.findWrapping(inner.type);\n if (!inside) { return null }\n var lastType = inside.length ? inside[inside.length - 1] : type;\n var innerMatch = lastType.contentMatch;\n for (var i = startIndex; innerMatch && i < endIndex; i++)\n { innerMatch = innerMatch.matchType(parent.child(i).type); }\n if (!innerMatch || !innerMatch.validEnd) { return null }\n return inside\n}\n\n// :: (NodeRange, [{type: NodeType, attrs: ?Object}]) → this\n// Wrap the given [range](#model.NodeRange) in the given set of wrappers.\n// The wrappers are assumed to be valid in this position, and should\n// probably be computed with [`findWrapping`](#transform.findWrapping).\nTransform.prototype.wrap = function(range, wrappers) {\n var content = Fragment.empty;\n for (var i = wrappers.length - 1; i >= 0; i--)\n { content = Fragment.from(wrappers[i].type.create(wrappers[i].attrs, content)); }\n\n var start = range.start, end = range.end;\n return this.step(new ReplaceAroundStep(start, end, start, end, new Slice(content, 0, 0), wrappers.length, true))\n};\n\n// :: (number, ?number, NodeType, ?Object) → this\n// Set the type of all textblocks (partly) between `from` and `to` to\n// the given node type with the given attributes.\nTransform.prototype.setBlockType = function(from, to, type, attrs) {\n var this$1 = this;\n if ( to === void 0 ) to = from;\n\n if (!type.isTextblock) { throw new RangeError(\"Type given to setBlockType should be a textblock\") }\n var mapFrom = this.steps.length;\n this.doc.nodesBetween(from, to, function (node, pos) {\n if (node.isTextblock && !node.hasMarkup(type, attrs) && canChangeType(this$1.doc, this$1.mapping.slice(mapFrom).map(pos), type)) {\n // Ensure all markup that isn't allowed in the new node type is cleared\n this$1.clearIncompatible(this$1.mapping.slice(mapFrom).map(pos, 1), type);\n var mapping = this$1.mapping.slice(mapFrom);\n var startM = mapping.map(pos, 1), endM = mapping.map(pos + node.nodeSize, 1);\n this$1.step(new ReplaceAroundStep(startM, endM, startM + 1, endM - 1,\n new Slice(Fragment.from(type.create(attrs, null, node.marks)), 0, 0), 1, true));\n return false\n }\n });\n return this\n};\n\nfunction canChangeType(doc, pos, type) {\n var $pos = doc.resolve(pos), index = $pos.index();\n return $pos.parent.canReplaceWith(index, index + 1, type)\n}\n\n// :: (number, ?NodeType, ?Object, ?[Mark]) → this\n// Change the type, attributes, and/or marks of the node at `pos`.\n// When `type` isn't given, the existing node type is preserved,\nTransform.prototype.setNodeMarkup = function(pos, type, attrs, marks) {\n var node = this.doc.nodeAt(pos);\n if (!node) { throw new RangeError(\"No node at given position\") }\n if (!type) { type = node.type; }\n var newNode = type.create(attrs, null, marks || node.marks);\n if (node.isLeaf)\n { return this.replaceWith(pos, pos + node.nodeSize, newNode) }\n\n if (!type.validContent(node.content))\n { throw new RangeError(\"Invalid content for node type \" + type.name) }\n\n return this.step(new ReplaceAroundStep(pos, pos + node.nodeSize, pos + 1, pos + node.nodeSize - 1,\n new Slice(Fragment.from(newNode), 0, 0), 1, true))\n};\n\n// :: (Node, number, number, ?[?{type: NodeType, attrs: ?Object}]) → bool\n// Check whether splitting at the given position is allowed.\nfunction canSplit(doc, pos, depth, typesAfter) {\n if ( depth === void 0 ) depth = 1;\n\n var $pos = doc.resolve(pos), base = $pos.depth - depth;\n var innerType = (typesAfter && typesAfter[typesAfter.length - 1]) || $pos.parent;\n if (base < 0 || $pos.parent.type.spec.isolating ||\n !$pos.parent.canReplace($pos.index(), $pos.parent.childCount) ||\n !innerType.type.validContent($pos.parent.content.cutByIndex($pos.index(), $pos.parent.childCount)))\n { return false }\n for (var d = $pos.depth - 1, i = depth - 2; d > base; d--, i--) {\n var node = $pos.node(d), index$1 = $pos.index(d);\n if (node.type.spec.isolating) { return false }\n var rest = node.content.cutByIndex(index$1, node.childCount);\n var after = (typesAfter && typesAfter[i]) || node;\n if (after != node) { rest = rest.replaceChild(0, after.type.create(after.attrs)); }\n if (!node.canReplace(index$1 + 1, node.childCount) || !after.type.validContent(rest))\n { return false }\n }\n var index = $pos.indexAfter(base);\n var baseType = typesAfter && typesAfter[0];\n return $pos.node(base).canReplaceWith(index, index, baseType ? baseType.type : $pos.node(base + 1).type)\n}\n\n// :: (number, ?number, ?[?{type: NodeType, attrs: ?Object}]) → this\n// Split the node at the given position, and optionally, if `depth` is\n// greater than one, any number of nodes above that. By default, the\n// parts split off will inherit the node type of the original node.\n// This can be changed by passing an array of types and attributes to\n// use after the split.\nTransform.prototype.split = function(pos, depth, typesAfter) {\n if ( depth === void 0 ) depth = 1;\n\n var $pos = this.doc.resolve(pos), before = Fragment.empty, after = Fragment.empty;\n for (var d = $pos.depth, e = $pos.depth - depth, i = depth - 1; d > e; d--, i--) {\n before = Fragment.from($pos.node(d).copy(before));\n var typeAfter = typesAfter && typesAfter[i];\n after = Fragment.from(typeAfter ? typeAfter.type.create(typeAfter.attrs, after) : $pos.node(d).copy(after));\n }\n return this.step(new ReplaceStep(pos, pos, new Slice(before.append(after), depth, depth), true))\n};\n\n// :: (Node, number) → bool\n// Test whether the blocks before and after a given position can be\n// joined.\nfunction canJoin(doc, pos) {\n var $pos = doc.resolve(pos), index = $pos.index();\n return joinable($pos.nodeBefore, $pos.nodeAfter) &&\n $pos.parent.canReplace(index, index + 1)\n}\n\nfunction joinable(a, b) {\n return a && b && !a.isLeaf && a.canAppend(b)\n}\n\n// :: (Node, number, ?number) → ?number\n// Find an ancestor of the given position that can be joined to the\n// block before (or after if `dir` is positive). Returns the joinable\n// point, if any.\nfunction joinPoint(doc, pos, dir) {\n if ( dir === void 0 ) dir = -1;\n\n var $pos = doc.resolve(pos);\n for (var d = $pos.depth;; d--) {\n var before = (void 0), after = (void 0), index = $pos.index(d);\n if (d == $pos.depth) {\n before = $pos.nodeBefore;\n after = $pos.nodeAfter;\n } else if (dir > 0) {\n before = $pos.node(d + 1);\n index++;\n after = $pos.node(d).maybeChild(index);\n } else {\n before = $pos.node(d).maybeChild(index - 1);\n after = $pos.node(d + 1);\n }\n if (before && !before.isTextblock && joinable(before, after) &&\n $pos.node(d).canReplace(index, index + 1)) { return pos }\n if (d == 0) { break }\n pos = dir < 0 ? $pos.before(d) : $pos.after(d);\n }\n}\n\n// :: (number, ?number) → this\n// Join the blocks around the given position. If depth is 2, their\n// last and first siblings are also joined, and so on.\nTransform.prototype.join = function(pos, depth) {\n if ( depth === void 0 ) depth = 1;\n\n var step = new ReplaceStep(pos - depth, pos + depth, Slice.empty, true);\n return this.step(step)\n};\n\n// :: (Node, number, NodeType) → ?number\n// Try to find a point where a node of the given type can be inserted\n// near `pos`, by searching up the node hierarchy when `pos` itself\n// isn't a valid place but is at the start or end of a node. Return\n// null if no position was found.\nfunction insertPoint(doc, pos, nodeType) {\n var $pos = doc.resolve(pos);\n if ($pos.parent.canReplaceWith($pos.index(), $pos.index(), nodeType)) { return pos }\n\n if ($pos.parentOffset == 0)\n { for (var d = $pos.depth - 1; d >= 0; d--) {\n var index = $pos.index(d);\n if ($pos.node(d).canReplaceWith(index, index, nodeType)) { return $pos.before(d + 1) }\n if (index > 0) { return null }\n } }\n if ($pos.parentOffset == $pos.parent.content.size)\n { for (var d$1 = $pos.depth - 1; d$1 >= 0; d$1--) {\n var index$1 = $pos.indexAfter(d$1);\n if ($pos.node(d$1).canReplaceWith(index$1, index$1, nodeType)) { return $pos.after(d$1 + 1) }\n if (index$1 < $pos.node(d$1).childCount) { return null }\n } }\n}\n\n// :: (Node, number, Slice) → ?number\n// Finds a position at or around the given position where the given\n// slice can be inserted. Will look at parent nodes' nearest boundary\n// and try there, even if the original position wasn't directly at the\n// start or end of that node. Returns null when no position was found.\nfunction dropPoint(doc, pos, slice) {\n var $pos = doc.resolve(pos);\n if (!slice.content.size) { return pos }\n var content = slice.content;\n for (var i = 0; i < slice.openStart; i++) { content = content.firstChild.content; }\n for (var pass = 1; pass <= (slice.openStart == 0 && slice.size ? 2 : 1); pass++) {\n for (var d = $pos.depth; d >= 0; d--) {\n var bias = d == $pos.depth ? 0 : $pos.pos <= ($pos.start(d + 1) + $pos.end(d + 1)) / 2 ? -1 : 1;\n var insertPos = $pos.index(d) + (bias > 0 ? 1 : 0);\n if (pass == 1\n ? $pos.node(d).canReplace(insertPos, insertPos, content)\n : $pos.node(d).contentMatchAt(insertPos).findWrapping(content.firstChild.type))\n { return bias == 0 ? $pos.pos : bias < 0 ? $pos.before(d + 1) : $pos.after(d + 1) }\n }\n }\n return null\n}\n\nfunction mapFragment(fragment, f, parent) {\n var mapped = [];\n for (var i = 0; i < fragment.childCount; i++) {\n var child = fragment.child(i);\n if (child.content.size) { child = child.copy(mapFragment(child.content, f, child)); }\n if (child.isInline) { child = f(child, parent, i); }\n mapped.push(child);\n }\n return Fragment.fromArray(mapped)\n}\n\n// ::- Add a mark to all inline content between two positions.\nvar AddMarkStep = /*@__PURE__*/(function (Step) {\n function AddMarkStep(from, to, mark) {\n Step.call(this);\n this.from = from;\n this.to = to;\n this.mark = mark;\n }\n\n if ( Step ) AddMarkStep.__proto__ = Step;\n AddMarkStep.prototype = Object.create( Step && Step.prototype );\n AddMarkStep.prototype.constructor = AddMarkStep;\n\n AddMarkStep.prototype.apply = function apply (doc) {\n var this$1 = this;\n\n var oldSlice = doc.slice(this.from, this.to), $from = doc.resolve(this.from);\n var parent = $from.node($from.sharedDepth(this.to));\n var slice = new Slice(mapFragment(oldSlice.content, function (node, parent) {\n if (!node.isAtom || !parent.type.allowsMarkType(this$1.mark.type)) { return node }\n return node.mark(this$1.mark.addToSet(node.marks))\n }, parent), oldSlice.openStart, oldSlice.openEnd);\n return StepResult.fromReplace(doc, this.from, this.to, slice)\n };\n\n AddMarkStep.prototype.invert = function invert () {\n return new RemoveMarkStep(this.from, this.to, this.mark)\n };\n\n AddMarkStep.prototype.map = function map (mapping) {\n var from = mapping.mapResult(this.from, 1), to = mapping.mapResult(this.to, -1);\n if (from.deleted && to.deleted || from.pos >= to.pos) { return null }\n return new AddMarkStep(from.pos, to.pos, this.mark)\n };\n\n AddMarkStep.prototype.merge = function merge (other) {\n if (other instanceof AddMarkStep &&\n other.mark.eq(this.mark) &&\n this.from <= other.to && this.to >= other.from)\n { return new AddMarkStep(Math.min(this.from, other.from),\n Math.max(this.to, other.to), this.mark) }\n };\n\n AddMarkStep.prototype.toJSON = function toJSON () {\n return {stepType: \"addMark\", mark: this.mark.toJSON(),\n from: this.from, to: this.to}\n };\n\n AddMarkStep.fromJSON = function fromJSON (schema, json) {\n if (typeof json.from != \"number\" || typeof json.to != \"number\")\n { throw new RangeError(\"Invalid input for AddMarkStep.fromJSON\") }\n return new AddMarkStep(json.from, json.to, schema.markFromJSON(json.mark))\n };\n\n return AddMarkStep;\n}(Step));\n\nStep.jsonID(\"addMark\", AddMarkStep);\n\n// ::- Remove a mark from all inline content between two positions.\nvar RemoveMarkStep = /*@__PURE__*/(function (Step) {\n function RemoveMarkStep(from, to, mark) {\n Step.call(this);\n this.from = from;\n this.to = to;\n this.mark = mark;\n }\n\n if ( Step ) RemoveMarkStep.__proto__ = Step;\n RemoveMarkStep.prototype = Object.create( Step && Step.prototype );\n RemoveMarkStep.prototype.constructor = RemoveMarkStep;\n\n RemoveMarkStep.prototype.apply = function apply (doc) {\n var this$1 = this;\n\n var oldSlice = doc.slice(this.from, this.to);\n var slice = new Slice(mapFragment(oldSlice.content, function (node) {\n return node.mark(this$1.mark.removeFromSet(node.marks))\n }), oldSlice.openStart, oldSlice.openEnd);\n return StepResult.fromReplace(doc, this.from, this.to, slice)\n };\n\n RemoveMarkStep.prototype.invert = function invert () {\n return new AddMarkStep(this.from, this.to, this.mark)\n };\n\n RemoveMarkStep.prototype.map = function map (mapping) {\n var from = mapping.mapResult(this.from, 1), to = mapping.mapResult(this.to, -1);\n if (from.deleted && to.deleted || from.pos >= to.pos) { return null }\n return new RemoveMarkStep(from.pos, to.pos, this.mark)\n };\n\n RemoveMarkStep.prototype.merge = function merge (other) {\n if (other instanceof RemoveMarkStep &&\n other.mark.eq(this.mark) &&\n this.from <= other.to && this.to >= other.from)\n { return new RemoveMarkStep(Math.min(this.from, other.from),\n Math.max(this.to, other.to), this.mark) }\n };\n\n RemoveMarkStep.prototype.toJSON = function toJSON () {\n return {stepType: \"removeMark\", mark: this.mark.toJSON(),\n from: this.from, to: this.to}\n };\n\n RemoveMarkStep.fromJSON = function fromJSON (schema, json) {\n if (typeof json.from != \"number\" || typeof json.to != \"number\")\n { throw new RangeError(\"Invalid input for RemoveMarkStep.fromJSON\") }\n return new RemoveMarkStep(json.from, json.to, schema.markFromJSON(json.mark))\n };\n\n return RemoveMarkStep;\n}(Step));\n\nStep.jsonID(\"removeMark\", RemoveMarkStep);\n\n// :: (number, number, Mark) → this\n// Add the given mark to the inline content between `from` and `to`.\nTransform.prototype.addMark = function(from, to, mark) {\n var this$1 = this;\n\n var removed = [], added = [], removing = null, adding = null;\n this.doc.nodesBetween(from, to, function (node, pos, parent) {\n if (!node.isInline) { return }\n var marks = node.marks;\n if (!mark.isInSet(marks) && parent.type.allowsMarkType(mark.type)) {\n var start = Math.max(pos, from), end = Math.min(pos + node.nodeSize, to);\n var newSet = mark.addToSet(marks);\n\n for (var i = 0; i < marks.length; i++) {\n if (!marks[i].isInSet(newSet)) {\n if (removing && removing.to == start && removing.mark.eq(marks[i]))\n { removing.to = end; }\n else\n { removed.push(removing = new RemoveMarkStep(start, end, marks[i])); }\n }\n }\n\n if (adding && adding.to == start)\n { adding.to = end; }\n else\n { added.push(adding = new AddMarkStep(start, end, mark)); }\n }\n });\n\n removed.forEach(function (s) { return this$1.step(s); });\n added.forEach(function (s) { return this$1.step(s); });\n return this\n};\n\n// :: (number, number, ?union) → this\n// Remove marks from inline nodes between `from` and `to`. When `mark`\n// is a single mark, remove precisely that mark. When it is a mark type,\n// remove all marks of that type. When it is null, remove all marks of\n// any type.\nTransform.prototype.removeMark = function(from, to, mark) {\n var this$1 = this;\n if ( mark === void 0 ) mark = null;\n\n var matched = [], step = 0;\n this.doc.nodesBetween(from, to, function (node, pos) {\n if (!node.isInline) { return }\n step++;\n var toRemove = null;\n if (mark instanceof MarkType) {\n var set = node.marks, found;\n while (found = mark.isInSet(set)) {\n(toRemove || (toRemove = [])).push(found);\n set = found.removeFromSet(set);\n }\n } else if (mark) {\n if (mark.isInSet(node.marks)) { toRemove = [mark]; }\n } else {\n toRemove = node.marks;\n }\n if (toRemove && toRemove.length) {\n var end = Math.min(pos + node.nodeSize, to);\n for (var i = 0; i < toRemove.length; i++) {\n var style = toRemove[i], found$1 = (void 0);\n for (var j = 0; j < matched.length; j++) {\n var m = matched[j];\n if (m.step == step - 1 && style.eq(matched[j].style)) { found$1 = m; }\n }\n if (found$1) {\n found$1.to = end;\n found$1.step = step;\n } else {\n matched.push({style: style, from: Math.max(pos, from), to: end, step: step});\n }\n }\n }\n });\n matched.forEach(function (m) { return this$1.step(new RemoveMarkStep(m.from, m.to, m.style)); });\n return this\n};\n\n// :: (number, NodeType, ?ContentMatch) → this\n// Removes all marks and nodes from the content of the node at `pos`\n// that don't match the given new parent node type. Accepts an\n// optional starting [content match](#model.ContentMatch) as third\n// argument.\nTransform.prototype.clearIncompatible = function(pos, parentType, match) {\n if ( match === void 0 ) match = parentType.contentMatch;\n\n var node = this.doc.nodeAt(pos);\n var delSteps = [], cur = pos + 1;\n for (var i = 0; i < node.childCount; i++) {\n var child = node.child(i), end = cur + child.nodeSize;\n var allowed = match.matchType(child.type, child.attrs);\n if (!allowed) {\n delSteps.push(new ReplaceStep(cur, end, Slice.empty));\n } else {\n match = allowed;\n for (var j = 0; j < child.marks.length; j++) { if (!parentType.allowsMarkType(child.marks[j].type))\n { this.step(new RemoveMarkStep(cur, end, child.marks[j])); } }\n }\n cur = end;\n }\n if (!match.validEnd) {\n var fill = match.fillBefore(Fragment.empty, true);\n this.replace(cur, cur, new Slice(fill, 0, 0));\n }\n for (var i$1 = delSteps.length - 1; i$1 >= 0; i$1--) { this.step(delSteps[i$1]); }\n return this\n};\n\n// :: (Node, number, ?number, ?Slice) → ?Step\n// ‘Fit’ a slice into a given position in the document, producing a\n// [step](#transform.Step) that inserts it. Will return null if\n// there's no meaningful way to insert the slice here, or inserting it\n// would be a no-op (an empty slice over an empty range).\nfunction replaceStep(doc, from, to, slice) {\n if ( to === void 0 ) to = from;\n if ( slice === void 0 ) slice = Slice.empty;\n\n if (from == to && !slice.size) { return null }\n\n var $from = doc.resolve(from), $to = doc.resolve(to);\n // Optimization -- avoid work if it's obvious that it's not needed.\n if (fitsTrivially($from, $to, slice)) { return new ReplaceStep(from, to, slice) }\n return new Fitter($from, $to, slice).fit()\n}\n\n// :: (number, ?number, ?Slice) → this\n// Replace the part of the document between `from` and `to` with the\n// given `slice`.\nTransform.prototype.replace = function(from, to, slice) {\n if ( to === void 0 ) to = from;\n if ( slice === void 0 ) slice = Slice.empty;\n\n var step = replaceStep(this.doc, from, to, slice);\n if (step) { this.step(step); }\n return this\n};\n\n// :: (number, number, union) → this\n// Replace the given range with the given content, which may be a\n// fragment, node, or array of nodes.\nTransform.prototype.replaceWith = function(from, to, content) {\n return this.replace(from, to, new Slice(Fragment.from(content), 0, 0))\n};\n\n// :: (number, number) → this\n// Delete the content between the given positions.\nTransform.prototype.delete = function(from, to) {\n return this.replace(from, to, Slice.empty)\n};\n\n// :: (number, union) → this\n// Insert the given content at the given position.\nTransform.prototype.insert = function(pos, content) {\n return this.replaceWith(pos, pos, content)\n};\n\nfunction fitsTrivially($from, $to, slice) {\n return !slice.openStart && !slice.openEnd && $from.start() == $to.start() &&\n $from.parent.canReplace($from.index(), $to.index(), slice.content)\n}\n\n// Algorithm for 'placing' the elements of a slice into a gap:\n//\n// We consider the content of each node that is open to the left to be\n// independently placeable. I.e. in , when the\n// paragraph on the left is open, \"foo\" can be placed (somewhere on\n// the left side of the replacement gap) independently from p(\"bar\").\n//\n// This class tracks the state of the placement progress in the\n// following properties:\n//\n// - `frontier` holds a stack of `{type, match}` objects that\n// represent the open side of the replacement. It starts at\n// `$from`, then moves forward as content is placed, and is finally\n// reconciled with `$to`.\n//\n// - `unplaced` is a slice that represents the content that hasn't\n// been placed yet.\n//\n// - `placed` is a fragment of placed content. Its open-start value\n// is implicit in `$from`, and its open-end value in `frontier`.\nvar Fitter = function Fitter($from, $to, slice) {\n this.$to = $to;\n this.$from = $from;\n this.unplaced = slice;\n\n this.frontier = [];\n for (var i = 0; i <= $from.depth; i++) {\n var node = $from.node(i);\n this.frontier.push({\n type: node.type,\n match: node.contentMatchAt($from.indexAfter(i))\n });\n }\n\n this.placed = Fragment.empty;\n for (var i$1 = $from.depth; i$1 > 0; i$1--)\n { this.placed = Fragment.from($from.node(i$1).copy(this.placed)); }\n};\n\nvar prototypeAccessors$1 = { depth: { configurable: true } };\n\nprototypeAccessors$1.depth.get = function () { return this.frontier.length - 1 };\n\nFitter.prototype.fit = function fit () {\n // As long as there's unplaced content, try to place some of it.\n // If that fails, either increase the open score of the unplaced\n // slice, or drop nodes from it, and then try again.\n while (this.unplaced.size) {\n var fit = this.findFittable();\n if (fit) { this.placeNodes(fit); }\n else { this.openMore() || this.dropNode(); }\n }\n // When there's inline content directly after the frontier _and_\n // directly after `this.$to`, we must generate a `ReplaceAround`\n // step that pulls that content into the node after the frontier.\n // That means the fitting must be done to the end of the textblock\n // node after `this.$to`, not `this.$to` itself.\n var moveInline = this.mustMoveInline(), placedSize = this.placed.size - this.depth - this.$from.depth;\n var $from = this.$from, $to = this.close(moveInline < 0 ? this.$to : $from.doc.resolve(moveInline));\n if (!$to) { return null }\n\n // If closing to `$to` succeeded, create a step\n var content = this.placed, openStart = $from.depth, openEnd = $to.depth;\n while (openStart && openEnd && content.childCount == 1) { // Normalize by dropping open parent nodes\n content = content.firstChild.content;\n openStart--; openEnd--;\n }\n var slice = new Slice(content, openStart, openEnd);\n if (moveInline > -1)\n { return new ReplaceAroundStep($from.pos, moveInline, this.$to.pos, this.$to.end(), slice, placedSize) }\n if (slice.size || $from.pos != this.$to.pos) // Don't generate no-op steps\n { return new ReplaceStep($from.pos, $to.pos, slice) }\n};\n\n// Find a position on the start spine of `this.unplaced` that has\n// content that can be moved somewhere on the frontier. Returns two\n// depths, one for the slice and one for the frontier.\nFitter.prototype.findFittable = function findFittable () {\n // Only try wrapping nodes (pass 2) after finding a place without\n // wrapping failed.\n for (var pass = 1; pass <= 2; pass++) {\n for (var sliceDepth = this.unplaced.openStart; sliceDepth >= 0; sliceDepth--) {\n var fragment = (void 0), parent = (void 0);\n if (sliceDepth) {\n parent = contentAt(this.unplaced.content, sliceDepth - 1).firstChild;\n fragment = parent.content;\n } else {\n fragment = this.unplaced.content;\n }\n var first = fragment.firstChild;\n for (var frontierDepth = this.depth; frontierDepth >= 0; frontierDepth--) {\n var ref = this.frontier[frontierDepth];\n var type = ref.type;\n var match = ref.match;\n var wrap = (void 0), inject = (void 0);\n // In pass 1, if the next node matches, or there is no next\n // node but the parents look compatible, we've found a\n // place.\n if (pass == 1 && (first ? match.matchType(first.type) || (inject = match.fillBefore(Fragment.from(first), false))\n : type.compatibleContent(parent.type)))\n { return {sliceDepth: sliceDepth, frontierDepth: frontierDepth, parent: parent, inject: inject} }\n // In pass 2, look for a set of wrapping nodes that make\n // `first` fit here.\n else if (pass == 2 && first && (wrap = match.findWrapping(first.type)))\n { return {sliceDepth: sliceDepth, frontierDepth: frontierDepth, parent: parent, wrap: wrap} }\n // Don't continue looking further up if the parent node\n // would fit here.\n if (parent && match.matchType(parent.type)) { break }\n }\n }\n }\n};\n\nFitter.prototype.openMore = function openMore () {\n var ref = this.unplaced;\n var content = ref.content;\n var openStart = ref.openStart;\n var openEnd = ref.openEnd;\n var inner = contentAt(content, openStart);\n if (!inner.childCount || inner.firstChild.isLeaf) { return false }\n this.unplaced = new Slice(content, openStart + 1,\n Math.max(openEnd, inner.size + openStart >= content.size - openEnd ? openStart + 1 : 0));\n return true\n};\n\nFitter.prototype.dropNode = function dropNode () {\n var ref = this.unplaced;\n var content = ref.content;\n var openStart = ref.openStart;\n var openEnd = ref.openEnd;\n var inner = contentAt(content, openStart);\n if (inner.childCount <= 1 && openStart > 0) {\n var openAtEnd = content.size - openStart <= openStart + inner.size;\n this.unplaced = new Slice(dropFromFragment(content, openStart - 1, 1), openStart - 1,\n openAtEnd ? openStart - 1 : openEnd);\n } else {\n this.unplaced = new Slice(dropFromFragment(content, openStart, 1), openStart, openEnd);\n }\n};\n\n// : ({sliceDepth: number, frontierDepth: number, parent: ?Node, wrap: ?[NodeType], inject: ?Fragment})\n// Move content from the unplaced slice at `sliceDepth` to the\n// frontier node at `frontierDepth`. Close that frontier node when\n// applicable.\nFitter.prototype.placeNodes = function placeNodes (ref) {\n var sliceDepth = ref.sliceDepth;\n var frontierDepth = ref.frontierDepth;\n var parent = ref.parent;\n var inject = ref.inject;\n var wrap = ref.wrap;\n\n while (this.depth > frontierDepth) { this.closeFrontierNode(); }\n if (wrap) { for (var i = 0; i < wrap.length; i++) { this.openFrontierNode(wrap[i]); } }\n\n var slice = this.unplaced, fragment = parent ? parent.content : slice.content;\n var openStart = slice.openStart - sliceDepth;\n var taken = 0, add = [];\n var ref$1 = this.frontier[frontierDepth];\n var match = ref$1.match;\n var type = ref$1.type;\n if (inject) {\n for (var i$1 = 0; i$1 < inject.childCount; i$1++) { add.push(inject.child(i$1)); }\n match = match.matchFragment(inject);\n }\n // Computes the amount of (end) open nodes at the end of the\n // fragment. When 0, the parent is open, but no more. When\n // negative, nothing is open.\n var openEndCount = (fragment.size + sliceDepth) - (slice.content.size - slice.openEnd);\n // Scan over the fragment, fitting as many child nodes as\n // possible.\n while (taken < fragment.childCount) {\n var next = fragment.child(taken), matches = match.matchType(next.type);\n if (!matches) { break }\n taken++;\n if (taken > 1 || openStart == 0 || next.content.size) { // Drop empty open nodes\n match = matches;\n add.push(closeNodeStart(next.mark(type.allowedMarks(next.marks)), taken == 1 ? openStart : 0,\n taken == fragment.childCount ? openEndCount : -1));\n }\n }\n var toEnd = taken == fragment.childCount;\n if (!toEnd) { openEndCount = -1; }\n\n this.placed = addToFragment(this.placed, frontierDepth, Fragment.from(add));\n this.frontier[frontierDepth].match = match;\n\n // If the parent types match, and the entire node was moved, and\n // it's not open, close this frontier node right away.\n if (toEnd && openEndCount < 0 && parent && parent.type == this.frontier[this.depth].type && this.frontier.length > 1)\n { this.closeFrontierNode(); }\n\n // Add new frontier nodes for any open nodes at the end.\n for (var i$2 = 0, cur = fragment; i$2 < openEndCount; i$2++) {\n var node = cur.lastChild;\n this.frontier.push({type: node.type, match: node.contentMatchAt(node.childCount)});\n cur = node.content;\n }\n\n // Update `this.unplaced`. Drop the entire node from which we\n // placed it we got to its end, otherwise just drop the placed\n // nodes.\n this.unplaced = !toEnd ? new Slice(dropFromFragment(slice.content, sliceDepth, taken), slice.openStart, slice.openEnd)\n : sliceDepth == 0 ? Slice.empty\n : new Slice(dropFromFragment(slice.content, sliceDepth - 1, 1),\n sliceDepth - 1, openEndCount < 0 ? slice.openEnd : sliceDepth - 1);\n};\n\nFitter.prototype.mustMoveInline = function mustMoveInline () {\n if (!this.$to.parent.isTextblock || this.$to.end() == this.$to.pos) { return -1 }\n var top = this.frontier[this.depth], level;\n if (!top.type.isTextblock || !contentAfterFits(this.$to, this.$to.depth, top.type, top.match, false) ||\n (this.$to.depth == this.depth && (level = this.findCloseLevel(this.$to)) && level.depth == this.depth)) { return -1 }\n\n var ref = this.$to;\n var depth = ref.depth;\n var after = this.$to.after(depth);\n while (depth > 1 && after == this.$to.end(--depth)) { ++after; }\n return after\n};\n\nFitter.prototype.findCloseLevel = function findCloseLevel ($to) {\n scan: for (var i = Math.min(this.depth, $to.depth); i >= 0; i--) {\n var ref = this.frontier[i];\n var match = ref.match;\n var type = ref.type;\n var dropInner = i < $to.depth && $to.end(i + 1) == $to.pos + ($to.depth - (i + 1));\n var fit = contentAfterFits($to, i, type, match, dropInner);\n if (!fit) { continue }\n for (var d = i - 1; d >= 0; d--) {\n var ref$1 = this.frontier[d];\n var match$1 = ref$1.match;\n var type$1 = ref$1.type;\n var matches = contentAfterFits($to, d, type$1, match$1, true);\n if (!matches || matches.childCount) { continue scan }\n }\n return {depth: i, fit: fit, move: dropInner ? $to.doc.resolve($to.after(i + 1)) : $to}\n }\n};\n\nFitter.prototype.close = function close ($to) {\n var close = this.findCloseLevel($to);\n if (!close) { return null }\n\n while (this.depth > close.depth) { this.closeFrontierNode(); }\n if (close.fit.childCount) { this.placed = addToFragment(this.placed, close.depth, close.fit); }\n $to = close.move;\n for (var d = close.depth + 1; d <= $to.depth; d++) {\n var node = $to.node(d), add = node.type.contentMatch.fillBefore(node.content, true, $to.index(d));\n this.openFrontierNode(node.type, node.attrs, add);\n }\n return $to\n};\n\nFitter.prototype.openFrontierNode = function openFrontierNode (type, attrs, content) {\n var top = this.frontier[this.depth];\n top.match = top.match.matchType(type);\n this.placed = addToFragment(this.placed, this.depth, Fragment.from(type.create(attrs, content)));\n this.frontier.push({type: type, match: type.contentMatch});\n};\n\nFitter.prototype.closeFrontierNode = function closeFrontierNode () {\n var open = this.frontier.pop();\n var add = open.match.fillBefore(Fragment.empty, true);\n if (add.childCount) { this.placed = addToFragment(this.placed, this.frontier.length, add); }\n};\n\nObject.defineProperties( Fitter.prototype, prototypeAccessors$1 );\n\nfunction dropFromFragment(fragment, depth, count) {\n if (depth == 0) { return fragment.cutByIndex(count) }\n return fragment.replaceChild(0, fragment.firstChild.copy(dropFromFragment(fragment.firstChild.content, depth - 1, count)))\n}\n\nfunction addToFragment(fragment, depth, content) {\n if (depth == 0) { return fragment.append(content) }\n return fragment.replaceChild(fragment.childCount - 1,\n fragment.lastChild.copy(addToFragment(fragment.lastChild.content, depth - 1, content)))\n}\n\nfunction contentAt(fragment, depth) {\n for (var i = 0; i < depth; i++) { fragment = fragment.firstChild.content; }\n return fragment\n}\n\nfunction closeNodeStart(node, openStart, openEnd) {\n if (openStart <= 0) { return node }\n var frag = node.content;\n if (openStart > 1)\n { frag = frag.replaceChild(0, closeNodeStart(frag.firstChild, openStart - 1, frag.childCount == 1 ? openEnd - 1 : 0)); }\n if (openStart > 0) {\n frag = node.type.contentMatch.fillBefore(frag).append(frag);\n if (openEnd <= 0) { frag = frag.append(node.type.contentMatch.matchFragment(frag).fillBefore(Fragment.empty, true)); }\n }\n return node.copy(frag)\n}\n\nfunction contentAfterFits($to, depth, type, match, open) {\n var node = $to.node(depth), index = open ? $to.indexAfter(depth) : $to.index(depth);\n if (index == node.childCount && !type.compatibleContent(node.type)) { return null }\n var fit = match.fillBefore(node.content, true, index);\n return fit && !invalidMarks(type, node.content, index) ? fit : null\n}\n\nfunction invalidMarks(type, fragment, start) {\n for (var i = start; i < fragment.childCount; i++)\n { if (!type.allowsMarks(fragment.child(i).marks)) { return true } }\n return false\n}\n\n// :: (number, number, Slice) → this\n// Replace a range of the document with a given slice, using `from`,\n// `to`, and the slice's [`openStart`](#model.Slice.openStart) property\n// as hints, rather than fixed start and end points. This method may\n// grow the replaced area or close open nodes in the slice in order to\n// get a fit that is more in line with WYSIWYG expectations, by\n// dropping fully covered parent nodes of the replaced region when\n// they are marked [non-defining](#model.NodeSpec.defining), or\n// including an open parent node from the slice that _is_ marked as\n// [defining](#model.NodeSpec.defining).\n//\n// This is the method, for example, to handle paste. The similar\n// [`replace`](#transform.Transform.replace) method is a more\n// primitive tool which will _not_ move the start and end of its given\n// range, and is useful in situations where you need more precise\n// control over what happens.\nTransform.prototype.replaceRange = function(from, to, slice) {\n if (!slice.size) { return this.deleteRange(from, to) }\n\n var $from = this.doc.resolve(from), $to = this.doc.resolve(to);\n if (fitsTrivially($from, $to, slice))\n { return this.step(new ReplaceStep(from, to, slice)) }\n\n var targetDepths = coveredDepths($from, this.doc.resolve(to));\n // Can't replace the whole document, so remove 0 if it's present\n if (targetDepths[targetDepths.length - 1] == 0) { targetDepths.pop(); }\n // Negative numbers represent not expansion over the whole node at\n // that depth, but replacing from $from.before(-D) to $to.pos.\n var preferredTarget = -($from.depth + 1);\n targetDepths.unshift(preferredTarget);\n // This loop picks a preferred target depth, if one of the covering\n // depths is not outside of a defining node, and adds negative\n // depths for any depth that has $from at its start and does not\n // cross a defining node.\n for (var d = $from.depth, pos = $from.pos - 1; d > 0; d--, pos--) {\n var spec = $from.node(d).type.spec;\n if (spec.defining || spec.isolating) { break }\n if (targetDepths.indexOf(d) > -1) { preferredTarget = d; }\n else if ($from.before(d) == pos) { targetDepths.splice(1, 0, -d); }\n }\n // Try to fit each possible depth of the slice into each possible\n // target depth, starting with the preferred depths.\n var preferredTargetIndex = targetDepths.indexOf(preferredTarget);\n\n var leftNodes = [], preferredDepth = slice.openStart;\n for (var content = slice.content, i = 0;; i++) {\n var node = content.firstChild;\n leftNodes.push(node);\n if (i == slice.openStart) { break }\n content = node.content;\n }\n // Back up if the node directly above openStart, or the node above\n // that separated only by a non-defining textblock node, is defining.\n if (preferredDepth > 0 && leftNodes[preferredDepth - 1].type.spec.defining &&\n $from.node(preferredTargetIndex).type != leftNodes[preferredDepth - 1].type)\n { preferredDepth -= 1; }\n else if (preferredDepth >= 2 && leftNodes[preferredDepth - 1].isTextblock && leftNodes[preferredDepth - 2].type.spec.defining &&\n $from.node(preferredTargetIndex).type != leftNodes[preferredDepth - 2].type)\n { preferredDepth -= 2; }\n\n for (var j = slice.openStart; j >= 0; j--) {\n var openDepth = (j + preferredDepth + 1) % (slice.openStart + 1);\n var insert = leftNodes[openDepth];\n if (!insert) { continue }\n for (var i$1 = 0; i$1 < targetDepths.length; i$1++) {\n // Loop over possible expansion levels, starting with the\n // preferred one\n var targetDepth = targetDepths[(i$1 + preferredTargetIndex) % targetDepths.length], expand = true;\n if (targetDepth < 0) { expand = false; targetDepth = -targetDepth; }\n var parent = $from.node(targetDepth - 1), index = $from.index(targetDepth - 1);\n if (parent.canReplaceWith(index, index, insert.type, insert.marks))\n { return this.replace($from.before(targetDepth), expand ? $to.after(targetDepth) : to,\n new Slice(closeFragment(slice.content, 0, slice.openStart, openDepth),\n openDepth, slice.openEnd)) }\n }\n }\n\n var startSteps = this.steps.length;\n for (var i$2 = targetDepths.length - 1; i$2 >= 0; i$2--) {\n this.replace(from, to, slice);\n if (this.steps.length > startSteps) { break }\n var depth = targetDepths[i$2];\n if (i$2 < 0) { continue }\n from = $from.before(depth); to = $to.after(depth);\n }\n return this\n};\n\nfunction closeFragment(fragment, depth, oldOpen, newOpen, parent) {\n if (depth < oldOpen) {\n var first = fragment.firstChild;\n fragment = fragment.replaceChild(0, first.copy(closeFragment(first.content, depth + 1, oldOpen, newOpen, first)));\n }\n if (depth > newOpen) {\n var match = parent.contentMatchAt(0);\n var start = match.fillBefore(fragment).append(fragment);\n fragment = start.append(match.matchFragment(start).fillBefore(Fragment.empty, true));\n }\n return fragment\n}\n\n// :: (number, number, Node) → this\n// Replace the given range with a node, but use `from` and `to` as\n// hints, rather than precise positions. When from and to are the same\n// and are at the start or end of a parent node in which the given\n// node doesn't fit, this method may _move_ them out towards a parent\n// that does allow the given node to be placed. When the given range\n// completely covers a parent node, this method may completely replace\n// that parent node.\nTransform.prototype.replaceRangeWith = function(from, to, node) {\n if (!node.isInline && from == to && this.doc.resolve(from).parent.content.size) {\n var point = insertPoint(this.doc, from, node.type);\n if (point != null) { from = to = point; }\n }\n return this.replaceRange(from, to, new Slice(Fragment.from(node), 0, 0))\n};\n\n// :: (number, number) → this\n// Delete the given range, expanding it to cover fully covered\n// parent nodes until a valid replace is found.\nTransform.prototype.deleteRange = function(from, to) {\n var $from = this.doc.resolve(from), $to = this.doc.resolve(to);\n var covered = coveredDepths($from, $to);\n for (var i = 0; i < covered.length; i++) {\n var depth = covered[i], last = i == covered.length - 1;\n if ((last && depth == 0) || $from.node(depth).type.contentMatch.validEnd)\n { return this.delete($from.start(depth), $to.end(depth)) }\n if (depth > 0 && (last || $from.node(depth - 1).canReplace($from.index(depth - 1), $to.indexAfter(depth - 1))))\n { return this.delete($from.before(depth), $to.after(depth)) }\n }\n for (var d = 1; d <= $from.depth && d <= $to.depth; d++) {\n if (from - $from.start(d) == $from.depth - d && to > $from.end(d) && $to.end(d) - to != $to.depth - d)\n { return this.delete($from.before(d), to) }\n }\n return this.delete(from, to)\n};\n\n// : (ResolvedPos, ResolvedPos) → [number]\n// Returns an array of all depths for which $from - $to spans the\n// whole content of the nodes at that depth.\nfunction coveredDepths($from, $to) {\n var result = [], minDepth = Math.min($from.depth, $to.depth);\n for (var d = minDepth; d >= 0; d--) {\n var start = $from.start(d);\n if (start < $from.pos - ($from.depth - d) ||\n $to.end(d) > $to.pos + ($to.depth - d) ||\n $from.node(d).type.spec.isolating ||\n $to.node(d).type.spec.isolating) { break }\n if (start == $to.start(d)) { result.push(d); }\n }\n return result\n}\n\nexport { AddMarkStep, MapResult, Mapping, RemoveMarkStep, ReplaceAroundStep, ReplaceStep, Step, StepMap, StepResult, Transform, TransformError, canJoin, canSplit, dropPoint, findWrapping, insertPoint, joinPoint, liftTarget, replaceStep };\n//# sourceMappingURL=index.es.js.map\n","import { Slice, Fragment, Mark, Node } from 'prosemirror-model';\nimport { ReplaceStep, ReplaceAroundStep, Transform } from 'prosemirror-transform';\n\nvar classesById = Object.create(null);\n\n// ::- Superclass for editor selections. Every selection type should\n// extend this. Should not be instantiated directly.\nvar Selection = function Selection($anchor, $head, ranges) {\n // :: [SelectionRange]\n // The ranges covered by the selection.\n this.ranges = ranges || [new SelectionRange($anchor.min($head), $anchor.max($head))];\n // :: ResolvedPos\n // The resolved anchor of the selection (the side that stays in\n // place when the selection is modified).\n this.$anchor = $anchor;\n // :: ResolvedPos\n // The resolved head of the selection (the side that moves when\n // the selection is modified).\n this.$head = $head;\n};\n\nvar prototypeAccessors = { anchor: { configurable: true },head: { configurable: true },from: { configurable: true },to: { configurable: true },$from: { configurable: true },$to: { configurable: true },empty: { configurable: true } };\n\n// :: number\n// The selection's anchor, as an unresolved position.\nprototypeAccessors.anchor.get = function () { return this.$anchor.pos };\n\n// :: number\n// The selection's head.\nprototypeAccessors.head.get = function () { return this.$head.pos };\n\n// :: number\n// The lower bound of the selection's main range.\nprototypeAccessors.from.get = function () { return this.$from.pos };\n\n// :: number\n// The upper bound of the selection's main range.\nprototypeAccessors.to.get = function () { return this.$to.pos };\n\n// :: ResolvedPos\n// The resolved lowerbound of the selection's main range.\nprototypeAccessors.$from.get = function () {\n return this.ranges[0].$from\n};\n\n// :: ResolvedPos\n// The resolved upper bound of the selection's main range.\nprototypeAccessors.$to.get = function () {\n return this.ranges[0].$to\n};\n\n// :: bool\n// Indicates whether the selection contains any content.\nprototypeAccessors.empty.get = function () {\n var ranges = this.ranges;\n for (var i = 0; i < ranges.length; i++)\n { if (ranges[i].$from.pos != ranges[i].$to.pos) { return false } }\n return true\n};\n\n// eq:: (Selection) → bool\n// Test whether the selection is the same as another selection.\n\n// map:: (doc: Node, mapping: Mappable) → Selection\n// Map this selection through a [mappable](#transform.Mappable) thing. `doc`\n// should be the new document to which we are mapping.\n\n// :: () → Slice\n// Get the content of this selection as a slice.\nSelection.prototype.content = function content () {\n return this.$from.node(0).slice(this.from, this.to, true)\n};\n\n// :: (Transaction, ?Slice)\n// Replace the selection with a slice or, if no slice is given,\n// delete the selection. Will append to the given transaction.\nSelection.prototype.replace = function replace (tr, content) {\n if ( content === void 0 ) content = Slice.empty;\n\n // Put the new selection at the position after the inserted\n // content. When that ended in an inline node, search backwards,\n // to get the position after that node. If not, search forward.\n var lastNode = content.content.lastChild, lastParent = null;\n for (var i = 0; i < content.openEnd; i++) {\n lastParent = lastNode;\n lastNode = lastNode.lastChild;\n }\n\n var mapFrom = tr.steps.length, ranges = this.ranges;\n for (var i$1 = 0; i$1 < ranges.length; i$1++) {\n var ref = ranges[i$1];\n var $from = ref.$from;\n var $to = ref.$to;\n var mapping = tr.mapping.slice(mapFrom);\n tr.replaceRange(mapping.map($from.pos), mapping.map($to.pos), i$1 ? Slice.empty : content);\n if (i$1 == 0)\n { selectionToInsertionEnd(tr, mapFrom, (lastNode ? lastNode.isInline : lastParent && lastParent.isTextblock) ? -1 : 1); }\n }\n};\n\n// :: (Transaction, Node)\n// Replace the selection with the given node, appending the changes\n// to the given transaction.\nSelection.prototype.replaceWith = function replaceWith (tr, node) {\n var mapFrom = tr.steps.length, ranges = this.ranges;\n for (var i = 0; i < ranges.length; i++) {\n var ref = ranges[i];\n var $from = ref.$from;\n var $to = ref.$to;\n var mapping = tr.mapping.slice(mapFrom);\n var from = mapping.map($from.pos), to = mapping.map($to.pos);\n if (i) {\n tr.deleteRange(from, to);\n } else {\n tr.replaceRangeWith(from, to, node);\n selectionToInsertionEnd(tr, mapFrom, node.isInline ? -1 : 1);\n }\n }\n};\n\n// toJSON:: () → Object\n// Convert the selection to a JSON representation. When implementing\n// this for a custom selection class, make sure to give the object a\n// `type` property whose value matches the ID under which you\n// [registered](#state.Selection^jsonID) your class.\n\n// :: (ResolvedPos, number, ?bool) → ?Selection\n// Find a valid cursor or leaf node selection starting at the given\n// position and searching back if `dir` is negative, and forward if\n// positive. When `textOnly` is true, only consider cursor\n// selections. Will return null when no valid selection position is\n// found.\nSelection.findFrom = function findFrom ($pos, dir, textOnly) {\n var inner = $pos.parent.inlineContent ? new TextSelection($pos)\n : findSelectionIn($pos.node(0), $pos.parent, $pos.pos, $pos.index(), dir, textOnly);\n if (inner) { return inner }\n\n for (var depth = $pos.depth - 1; depth >= 0; depth--) {\n var found = dir < 0\n ? findSelectionIn($pos.node(0), $pos.node(depth), $pos.before(depth + 1), $pos.index(depth), dir, textOnly)\n : findSelectionIn($pos.node(0), $pos.node(depth), $pos.after(depth + 1), $pos.index(depth) + 1, dir, textOnly);\n if (found) { return found }\n }\n};\n\n// :: (ResolvedPos, ?number) → Selection\n// Find a valid cursor or leaf node selection near the given\n// position. Searches forward first by default, but if `bias` is\n// negative, it will search backwards first.\nSelection.near = function near ($pos, bias) {\n if ( bias === void 0 ) bias = 1;\n\n return this.findFrom($pos, bias) || this.findFrom($pos, -bias) || new AllSelection($pos.node(0))\n};\n\n// :: (Node) → Selection\n// Find the cursor or leaf node selection closest to the start of\n// the given document. Will return an\n// [`AllSelection`](#state.AllSelection) if no valid position\n// exists.\nSelection.atStart = function atStart (doc) {\n return findSelectionIn(doc, doc, 0, 0, 1) || new AllSelection(doc)\n};\n\n// :: (Node) → Selection\n// Find the cursor or leaf node selection closest to the end of the\n// given document.\nSelection.atEnd = function atEnd (doc) {\n return findSelectionIn(doc, doc, doc.content.size, doc.childCount, -1) || new AllSelection(doc)\n};\n\n// :: (Node, Object) → Selection\n// Deserialize the JSON representation of a selection. Must be\n// implemented for custom classes (as a static class method).\nSelection.fromJSON = function fromJSON (doc, json) {\n if (!json || !json.type) { throw new RangeError(\"Invalid input for Selection.fromJSON\") }\n var cls = classesById[json.type];\n if (!cls) { throw new RangeError((\"No selection type \" + (json.type) + \" defined\")) }\n return cls.fromJSON(doc, json)\n};\n\n// :: (string, constructor)\n// To be able to deserialize selections from JSON, custom selection\n// classes must register themselves with an ID string, so that they\n// can be disambiguated. Try to pick something that's unlikely to\n// clash with classes from other modules.\nSelection.jsonID = function jsonID (id, selectionClass) {\n if (id in classesById) { throw new RangeError(\"Duplicate use of selection JSON ID \" + id) }\n classesById[id] = selectionClass;\n selectionClass.prototype.jsonID = id;\n return selectionClass\n};\n\n// :: () → SelectionBookmark\n// Get a [bookmark](#state.SelectionBookmark) for this selection,\n// which is a value that can be mapped without having access to a\n// current document, and later resolved to a real selection for a\n// given document again. (This is used mostly by the history to\n// track and restore old selections.) The default implementation of\n// this method just converts the selection to a text selection and\n// returns the bookmark for that.\nSelection.prototype.getBookmark = function getBookmark () {\n return TextSelection.between(this.$anchor, this.$head).getBookmark()\n};\n\nObject.defineProperties( Selection.prototype, prototypeAccessors );\n\n// :: bool\n// Controls whether, when a selection of this type is active in the\n// browser, the selected range should be visible to the user. Defaults\n// to `true`.\nSelection.prototype.visible = true;\n\n// SelectionBookmark:: interface\n// A lightweight, document-independent representation of a selection.\n// You can define a custom bookmark type for a custom selection class\n// to make the history handle it well.\n//\n// map:: (mapping: Mapping) → SelectionBookmark\n// Map the bookmark through a set of changes.\n//\n// resolve:: (doc: Node) → Selection\n// Resolve the bookmark to a real selection again. This may need to\n// do some error checking and may fall back to a default (usually\n// [`TextSelection.between`](#state.TextSelection^between)) if\n// mapping made the bookmark invalid.\n\n// ::- Represents a selected range in a document.\nvar SelectionRange = function SelectionRange($from, $to) {\n // :: ResolvedPos\n // The lower bound of the range.\n this.$from = $from;\n // :: ResolvedPos\n // The upper bound of the range.\n this.$to = $to;\n};\n\n// ::- A text selection represents a classical editor selection, with\n// a head (the moving side) and anchor (immobile side), both of which\n// point into textblock nodes. It can be empty (a regular cursor\n// position).\nvar TextSelection = /*@__PURE__*/(function (Selection) {\n function TextSelection($anchor, $head) {\n if ( $head === void 0 ) $head = $anchor;\n\n Selection.call(this, $anchor, $head);\n }\n\n if ( Selection ) TextSelection.__proto__ = Selection;\n TextSelection.prototype = Object.create( Selection && Selection.prototype );\n TextSelection.prototype.constructor = TextSelection;\n\n var prototypeAccessors$1 = { $cursor: { configurable: true } };\n\n // :: ?ResolvedPos\n // Returns a resolved position if this is a cursor selection (an\n // empty text selection), and null otherwise.\n prototypeAccessors$1.$cursor.get = function () { return this.$anchor.pos == this.$head.pos ? this.$head : null };\n\n TextSelection.prototype.map = function map (doc, mapping) {\n var $head = doc.resolve(mapping.map(this.head));\n if (!$head.parent.inlineContent) { return Selection.near($head) }\n var $anchor = doc.resolve(mapping.map(this.anchor));\n return new TextSelection($anchor.parent.inlineContent ? $anchor : $head, $head)\n };\n\n TextSelection.prototype.replace = function replace (tr, content) {\n if ( content === void 0 ) content = Slice.empty;\n\n Selection.prototype.replace.call(this, tr, content);\n if (content == Slice.empty) {\n var marks = this.$from.marksAcross(this.$to);\n if (marks) { tr.ensureMarks(marks); }\n }\n };\n\n TextSelection.prototype.eq = function eq (other) {\n return other instanceof TextSelection && other.anchor == this.anchor && other.head == this.head\n };\n\n TextSelection.prototype.getBookmark = function getBookmark () {\n return new TextBookmark(this.anchor, this.head)\n };\n\n TextSelection.prototype.toJSON = function toJSON () {\n return {type: \"text\", anchor: this.anchor, head: this.head}\n };\n\n TextSelection.fromJSON = function fromJSON (doc, json) {\n if (typeof json.anchor != \"number\" || typeof json.head != \"number\")\n { throw new RangeError(\"Invalid input for TextSelection.fromJSON\") }\n return new TextSelection(doc.resolve(json.anchor), doc.resolve(json.head))\n };\n\n // :: (Node, number, ?number) → TextSelection\n // Create a text selection from non-resolved positions.\n TextSelection.create = function create (doc, anchor, head) {\n if ( head === void 0 ) head = anchor;\n\n var $anchor = doc.resolve(anchor);\n return new this($anchor, head == anchor ? $anchor : doc.resolve(head))\n };\n\n // :: (ResolvedPos, ResolvedPos, ?number) → Selection\n // Return a text selection that spans the given positions or, if\n // they aren't text positions, find a text selection near them.\n // `bias` determines whether the method searches forward (default)\n // or backwards (negative number) first. Will fall back to calling\n // [`Selection.near`](#state.Selection^near) when the document\n // doesn't contain a valid text position.\n TextSelection.between = function between ($anchor, $head, bias) {\n var dPos = $anchor.pos - $head.pos;\n if (!bias || dPos) { bias = dPos >= 0 ? 1 : -1; }\n if (!$head.parent.inlineContent) {\n var found = Selection.findFrom($head, bias, true) || Selection.findFrom($head, -bias, true);\n if (found) { $head = found.$head; }\n else { return Selection.near($head, bias) }\n }\n if (!$anchor.parent.inlineContent) {\n if (dPos == 0) {\n $anchor = $head;\n } else {\n $anchor = (Selection.findFrom($anchor, -bias, true) || Selection.findFrom($anchor, bias, true)).$anchor;\n if (($anchor.pos < $head.pos) != (dPos < 0)) { $anchor = $head; }\n }\n }\n return new TextSelection($anchor, $head)\n };\n\n Object.defineProperties( TextSelection.prototype, prototypeAccessors$1 );\n\n return TextSelection;\n}(Selection));\n\nSelection.jsonID(\"text\", TextSelection);\n\nvar TextBookmark = function TextBookmark(anchor, head) {\n this.anchor = anchor;\n this.head = head;\n};\nTextBookmark.prototype.map = function map (mapping) {\n return new TextBookmark(mapping.map(this.anchor), mapping.map(this.head))\n};\nTextBookmark.prototype.resolve = function resolve (doc) {\n return TextSelection.between(doc.resolve(this.anchor), doc.resolve(this.head))\n};\n\n// ::- A node selection is a selection that points at a single node.\n// All nodes marked [selectable](#model.NodeSpec.selectable) can be\n// the target of a node selection. In such a selection, `from` and\n// `to` point directly before and after the selected node, `anchor`\n// equals `from`, and `head` equals `to`..\nvar NodeSelection = /*@__PURE__*/(function (Selection) {\n function NodeSelection($pos) {\n var node = $pos.nodeAfter;\n var $end = $pos.node(0).resolve($pos.pos + node.nodeSize);\n Selection.call(this, $pos, $end);\n // :: Node The selected node.\n this.node = node;\n }\n\n if ( Selection ) NodeSelection.__proto__ = Selection;\n NodeSelection.prototype = Object.create( Selection && Selection.prototype );\n NodeSelection.prototype.constructor = NodeSelection;\n\n NodeSelection.prototype.map = function map (doc, mapping) {\n var ref = mapping.mapResult(this.anchor);\n var deleted = ref.deleted;\n var pos = ref.pos;\n var $pos = doc.resolve(pos);\n if (deleted) { return Selection.near($pos) }\n return new NodeSelection($pos)\n };\n\n NodeSelection.prototype.content = function content () {\n return new Slice(Fragment.from(this.node), 0, 0)\n };\n\n NodeSelection.prototype.eq = function eq (other) {\n return other instanceof NodeSelection && other.anchor == this.anchor\n };\n\n NodeSelection.prototype.toJSON = function toJSON () {\n return {type: \"node\", anchor: this.anchor}\n };\n\n NodeSelection.prototype.getBookmark = function getBookmark () { return new NodeBookmark(this.anchor) };\n\n NodeSelection.fromJSON = function fromJSON (doc, json) {\n if (typeof json.anchor != \"number\")\n { throw new RangeError(\"Invalid input for NodeSelection.fromJSON\") }\n return new NodeSelection(doc.resolve(json.anchor))\n };\n\n // :: (Node, number) → NodeSelection\n // Create a node selection from non-resolved positions.\n NodeSelection.create = function create (doc, from) {\n return new this(doc.resolve(from))\n };\n\n // :: (Node) → bool\n // Determines whether the given node may be selected as a node\n // selection.\n NodeSelection.isSelectable = function isSelectable (node) {\n return !node.isText && node.type.spec.selectable !== false\n };\n\n return NodeSelection;\n}(Selection));\n\nNodeSelection.prototype.visible = false;\n\nSelection.jsonID(\"node\", NodeSelection);\n\nvar NodeBookmark = function NodeBookmark(anchor) {\n this.anchor = anchor;\n};\nNodeBookmark.prototype.map = function map (mapping) {\n var ref = mapping.mapResult(this.anchor);\n var deleted = ref.deleted;\n var pos = ref.pos;\n return deleted ? new TextBookmark(pos, pos) : new NodeBookmark(pos)\n};\nNodeBookmark.prototype.resolve = function resolve (doc) {\n var $pos = doc.resolve(this.anchor), node = $pos.nodeAfter;\n if (node && NodeSelection.isSelectable(node)) { return new NodeSelection($pos) }\n return Selection.near($pos)\n};\n\n// ::- A selection type that represents selecting the whole document\n// (which can not necessarily be expressed with a text selection, when\n// there are for example leaf block nodes at the start or end of the\n// document).\nvar AllSelection = /*@__PURE__*/(function (Selection) {\n function AllSelection(doc) {\n Selection.call(this, doc.resolve(0), doc.resolve(doc.content.size));\n }\n\n if ( Selection ) AllSelection.__proto__ = Selection;\n AllSelection.prototype = Object.create( Selection && Selection.prototype );\n AllSelection.prototype.constructor = AllSelection;\n\n AllSelection.prototype.replace = function replace (tr, content) {\n if ( content === void 0 ) content = Slice.empty;\n\n if (content == Slice.empty) {\n tr.delete(0, tr.doc.content.size);\n var sel = Selection.atStart(tr.doc);\n if (!sel.eq(tr.selection)) { tr.setSelection(sel); }\n } else {\n Selection.prototype.replace.call(this, tr, content);\n }\n };\n\n AllSelection.prototype.toJSON = function toJSON () { return {type: \"all\"} };\n\n AllSelection.fromJSON = function fromJSON (doc) { return new AllSelection(doc) };\n\n AllSelection.prototype.map = function map (doc) { return new AllSelection(doc) };\n\n AllSelection.prototype.eq = function eq (other) { return other instanceof AllSelection };\n\n AllSelection.prototype.getBookmark = function getBookmark () { return AllBookmark };\n\n return AllSelection;\n}(Selection));\n\nSelection.jsonID(\"all\", AllSelection);\n\nvar AllBookmark = {\n map: function map() { return this },\n resolve: function resolve(doc) { return new AllSelection(doc) }\n};\n\n// FIXME we'll need some awareness of text direction when scanning for selections\n\n// Try to find a selection inside the given node. `pos` points at the\n// position where the search starts. When `text` is true, only return\n// text selections.\nfunction findSelectionIn(doc, node, pos, index, dir, text) {\n if (node.inlineContent) { return TextSelection.create(doc, pos) }\n for (var i = index - (dir > 0 ? 0 : 1); dir > 0 ? i < node.childCount : i >= 0; i += dir) {\n var child = node.child(i);\n if (!child.isAtom) {\n var inner = findSelectionIn(doc, child, pos + dir, dir < 0 ? child.childCount : 0, dir, text);\n if (inner) { return inner }\n } else if (!text && NodeSelection.isSelectable(child)) {\n return NodeSelection.create(doc, pos - (dir < 0 ? child.nodeSize : 0))\n }\n pos += child.nodeSize * dir;\n }\n}\n\nfunction selectionToInsertionEnd(tr, startLen, bias) {\n var last = tr.steps.length - 1;\n if (last < startLen) { return }\n var step = tr.steps[last];\n if (!(step instanceof ReplaceStep || step instanceof ReplaceAroundStep)) { return }\n var map = tr.mapping.maps[last], end;\n map.forEach(function (_from, _to, _newFrom, newTo) { if (end == null) { end = newTo; } });\n tr.setSelection(Selection.near(tr.doc.resolve(end), bias));\n}\n\nvar UPDATED_SEL = 1, UPDATED_MARKS = 2, UPDATED_SCROLL = 4;\n\n// ::- An editor state transaction, which can be applied to a state to\n// create an updated state. Use\n// [`EditorState.tr`](#state.EditorState.tr) to create an instance.\n//\n// Transactions track changes to the document (they are a subclass of\n// [`Transform`](#transform.Transform)), but also other state changes,\n// like selection updates and adjustments of the set of [stored\n// marks](#state.EditorState.storedMarks). In addition, you can store\n// metadata properties in a transaction, which are extra pieces of\n// information that client code or plugins can use to describe what a\n// transacion represents, so that they can update their [own\n// state](#state.StateField) accordingly.\n//\n// The [editor view](#view.EditorView) uses a few metadata properties:\n// it will attach a property `\"pointer\"` with the value `true` to\n// selection transactions directly caused by mouse or touch input, and\n// a `\"uiEvent\"` property of that may be `\"paste\"`, `\"cut\"`, or `\"drop\"`.\nvar Transaction = /*@__PURE__*/(function (Transform) {\n function Transaction(state) {\n Transform.call(this, state.doc);\n // :: number\n // The timestamp associated with this transaction, in the same\n // format as `Date.now()`.\n this.time = Date.now();\n this.curSelection = state.selection;\n // The step count for which the current selection is valid.\n this.curSelectionFor = 0;\n // :: ?[Mark]\n // The stored marks set by this transaction, if any.\n this.storedMarks = state.storedMarks;\n // Bitfield to track which aspects of the state were updated by\n // this transaction.\n this.updated = 0;\n // Object used to store metadata properties for the transaction.\n this.meta = Object.create(null);\n }\n\n if ( Transform ) Transaction.__proto__ = Transform;\n Transaction.prototype = Object.create( Transform && Transform.prototype );\n Transaction.prototype.constructor = Transaction;\n\n var prototypeAccessors = { selection: { configurable: true },selectionSet: { configurable: true },storedMarksSet: { configurable: true },isGeneric: { configurable: true },scrolledIntoView: { configurable: true } };\n\n // :: Selection\n // The transaction's current selection. This defaults to the editor\n // selection [mapped](#state.Selection.map) through the steps in the\n // transaction, but can be overwritten with\n // [`setSelection`](#state.Transaction.setSelection).\n prototypeAccessors.selection.get = function () {\n if (this.curSelectionFor < this.steps.length) {\n this.curSelection = this.curSelection.map(this.doc, this.mapping.slice(this.curSelectionFor));\n this.curSelectionFor = this.steps.length;\n }\n return this.curSelection\n };\n\n // :: (Selection) → Transaction\n // Update the transaction's current selection. Will determine the\n // selection that the editor gets when the transaction is applied.\n Transaction.prototype.setSelection = function setSelection (selection) {\n if (selection.$from.doc != this.doc)\n { throw new RangeError(\"Selection passed to setSelection must point at the current document\") }\n this.curSelection = selection;\n this.curSelectionFor = this.steps.length;\n this.updated = (this.updated | UPDATED_SEL) & ~UPDATED_MARKS;\n this.storedMarks = null;\n return this\n };\n\n // :: bool\n // Whether the selection was explicitly updated by this transaction.\n prototypeAccessors.selectionSet.get = function () {\n return (this.updated & UPDATED_SEL) > 0\n };\n\n // :: (?[Mark]) → Transaction\n // Set the current stored marks.\n Transaction.prototype.setStoredMarks = function setStoredMarks (marks) {\n this.storedMarks = marks;\n this.updated |= UPDATED_MARKS;\n return this\n };\n\n // :: ([Mark]) → Transaction\n // Make sure the current stored marks or, if that is null, the marks\n // at the selection, match the given set of marks. Does nothing if\n // this is already the case.\n Transaction.prototype.ensureMarks = function ensureMarks (marks) {\n if (!Mark.sameSet(this.storedMarks || this.selection.$from.marks(), marks))\n { this.setStoredMarks(marks); }\n return this\n };\n\n // :: (Mark) → Transaction\n // Add a mark to the set of stored marks.\n Transaction.prototype.addStoredMark = function addStoredMark (mark) {\n return this.ensureMarks(mark.addToSet(this.storedMarks || this.selection.$head.marks()))\n };\n\n // :: (union) → Transaction\n // Remove a mark or mark type from the set of stored marks.\n Transaction.prototype.removeStoredMark = function removeStoredMark (mark) {\n return this.ensureMarks(mark.removeFromSet(this.storedMarks || this.selection.$head.marks()))\n };\n\n // :: bool\n // Whether the stored marks were explicitly set for this transaction.\n prototypeAccessors.storedMarksSet.get = function () {\n return (this.updated & UPDATED_MARKS) > 0\n };\n\n Transaction.prototype.addStep = function addStep (step, doc) {\n Transform.prototype.addStep.call(this, step, doc);\n this.updated = this.updated & ~UPDATED_MARKS;\n this.storedMarks = null;\n };\n\n // :: (number) → Transaction\n // Update the timestamp for the transaction.\n Transaction.prototype.setTime = function setTime (time) {\n this.time = time;\n return this\n };\n\n // :: (Slice) → Transaction\n // Replace the current selection with the given slice.\n Transaction.prototype.replaceSelection = function replaceSelection (slice) {\n this.selection.replace(this, slice);\n return this\n };\n\n // :: (Node, ?bool) → Transaction\n // Replace the selection with the given node. When `inheritMarks` is\n // true and the content is inline, it inherits the marks from the\n // place where it is inserted.\n Transaction.prototype.replaceSelectionWith = function replaceSelectionWith (node, inheritMarks) {\n var selection = this.selection;\n if (inheritMarks !== false)\n { node = node.mark(this.storedMarks || (selection.empty ? selection.$from.marks() : (selection.$from.marksAcross(selection.$to) || Mark.none))); }\n selection.replaceWith(this, node);\n return this\n };\n\n // :: () → Transaction\n // Delete the selection.\n Transaction.prototype.deleteSelection = function deleteSelection () {\n this.selection.replace(this);\n return this\n };\n\n // :: (string, from: ?number, to: ?number) → Transaction\n // Replace the given range, or the selection if no range is given,\n // with a text node containing the given string.\n Transaction.prototype.insertText = function insertText (text, from, to) {\n if ( to === void 0 ) to = from;\n\n var schema = this.doc.type.schema;\n if (from == null) {\n if (!text) { return this.deleteSelection() }\n return this.replaceSelectionWith(schema.text(text), true)\n } else {\n if (!text) { return this.deleteRange(from, to) }\n var marks = this.storedMarks;\n if (!marks) {\n var $from = this.doc.resolve(from);\n marks = to == from ? $from.marks() : $from.marksAcross(this.doc.resolve(to));\n }\n this.replaceRangeWith(from, to, schema.text(text, marks));\n if (!this.selection.empty) { this.setSelection(Selection.near(this.selection.$to)); }\n return this\n }\n };\n\n // :: (union, any) → Transaction\n // Store a metadata property in this transaction, keyed either by\n // name or by plugin.\n Transaction.prototype.setMeta = function setMeta (key, value) {\n this.meta[typeof key == \"string\" ? key : key.key] = value;\n return this\n };\n\n // :: (union) → any\n // Retrieve a metadata property for a given name or plugin.\n Transaction.prototype.getMeta = function getMeta (key) {\n return this.meta[typeof key == \"string\" ? key : key.key]\n };\n\n // :: bool\n // Returns true if this transaction doesn't contain any metadata,\n // and can thus safely be extended.\n prototypeAccessors.isGeneric.get = function () {\n for (var _ in this.meta) { return false }\n return true\n };\n\n // :: () → Transaction\n // Indicate that the editor should scroll the selection into view\n // when updated to the state produced by this transaction.\n Transaction.prototype.scrollIntoView = function scrollIntoView () {\n this.updated |= UPDATED_SCROLL;\n return this\n };\n\n prototypeAccessors.scrolledIntoView.get = function () {\n return (this.updated & UPDATED_SCROLL) > 0\n };\n\n Object.defineProperties( Transaction.prototype, prototypeAccessors );\n\n return Transaction;\n}(Transform));\n\nfunction bind(f, self) {\n return !self || !f ? f : f.bind(self)\n}\n\nvar FieldDesc = function FieldDesc(name, desc, self) {\n this.name = name;\n this.init = bind(desc.init, self);\n this.apply = bind(desc.apply, self);\n};\n\nvar baseFields = [\n new FieldDesc(\"doc\", {\n init: function init(config) { return config.doc || config.schema.topNodeType.createAndFill() },\n apply: function apply(tr) { return tr.doc }\n }),\n\n new FieldDesc(\"selection\", {\n init: function init(config, instance) { return config.selection || Selection.atStart(instance.doc) },\n apply: function apply(tr) { return tr.selection }\n }),\n\n new FieldDesc(\"storedMarks\", {\n init: function init(config) { return config.storedMarks || null },\n apply: function apply(tr, _marks, _old, state) { return state.selection.$cursor ? tr.storedMarks : null }\n }),\n\n new FieldDesc(\"scrollToSelection\", {\n init: function init() { return 0 },\n apply: function apply(tr, prev) { return tr.scrolledIntoView ? prev + 1 : prev }\n })\n];\n\n// Object wrapping the part of a state object that stays the same\n// across transactions. Stored in the state's `config` property.\nvar Configuration = function Configuration(schema, plugins) {\n var this$1 = this;\n\n this.schema = schema;\n this.fields = baseFields.concat();\n this.plugins = [];\n this.pluginsByKey = Object.create(null);\n if (plugins) { plugins.forEach(function (plugin) {\n if (this$1.pluginsByKey[plugin.key])\n { throw new RangeError(\"Adding different instances of a keyed plugin (\" + plugin.key + \")\") }\n this$1.plugins.push(plugin);\n this$1.pluginsByKey[plugin.key] = plugin;\n if (plugin.spec.state)\n { this$1.fields.push(new FieldDesc(plugin.key, plugin.spec.state, plugin)); }\n }); }\n};\n\n// ::- The state of a ProseMirror editor is represented by an object\n// of this type. A state is a persistent data structure—it isn't\n// updated, but rather a new state value is computed from an old one\n// using the [`apply`](#state.EditorState.apply) method.\n//\n// A state holds a number of built-in fields, and plugins can\n// [define](#state.PluginSpec.state) additional fields.\nvar EditorState = function EditorState(config) {\n this.config = config;\n};\n\nvar prototypeAccessors$1 = { schema: { configurable: true },plugins: { configurable: true },tr: { configurable: true } };\n\n// doc:: Node\n// The current document.\n\n// selection:: Selection\n// The selection.\n\n// storedMarks:: ?[Mark]\n// A set of marks to apply to the next input. Will be null when\n// no explicit marks have been set.\n\n// :: Schema\n// The schema of the state's document.\nprototypeAccessors$1.schema.get = function () {\n return this.config.schema\n};\n\n// :: [Plugin]\n// The plugins that are active in this state.\nprototypeAccessors$1.plugins.get = function () {\n return this.config.plugins\n};\n\n// :: (Transaction) → EditorState\n// Apply the given transaction to produce a new state.\nEditorState.prototype.apply = function apply (tr) {\n return this.applyTransaction(tr).state\n};\n\n// : (Transaction) → bool\nEditorState.prototype.filterTransaction = function filterTransaction (tr, ignore) {\n if ( ignore === void 0 ) ignore = -1;\n\n for (var i = 0; i < this.config.plugins.length; i++) { if (i != ignore) {\n var plugin = this.config.plugins[i];\n if (plugin.spec.filterTransaction && !plugin.spec.filterTransaction.call(plugin, tr, this))\n { return false }\n } }\n return true\n};\n\n// :: (Transaction) → {state: EditorState, transactions: [Transaction]}\n// Verbose variant of [`apply`](#state.EditorState.apply) that\n// returns the precise transactions that were applied (which might\n// be influenced by the [transaction\n// hooks](#state.PluginSpec.filterTransaction) of\n// plugins) along with the new state.\nEditorState.prototype.applyTransaction = function applyTransaction (rootTr) {\n if (!this.filterTransaction(rootTr)) { return {state: this, transactions: []} }\n\n var trs = [rootTr], newState = this.applyInner(rootTr), seen = null;\n // This loop repeatedly gives plugins a chance to respond to\n // transactions as new transactions are added, making sure to only\n // pass the transactions the plugin did not see before.\n for (;;) {\n var haveNew = false;\n for (var i = 0; i < this.config.plugins.length; i++) {\n var plugin = this.config.plugins[i];\n if (plugin.spec.appendTransaction) {\n var n = seen ? seen[i].n : 0, oldState = seen ? seen[i].state : this;\n var tr = n < trs.length &&\n plugin.spec.appendTransaction.call(plugin, n ? trs.slice(n) : trs, oldState, newState);\n if (tr && newState.filterTransaction(tr, i)) {\n tr.setMeta(\"appendedTransaction\", rootTr);\n if (!seen) {\n seen = [];\n for (var j = 0; j < this.config.plugins.length; j++)\n { seen.push(j < i ? {state: newState, n: trs.length} : {state: this, n: 0}); }\n }\n trs.push(tr);\n newState = newState.applyInner(tr);\n haveNew = true;\n }\n if (seen) { seen[i] = {state: newState, n: trs.length}; }\n }\n }\n if (!haveNew) { return {state: newState, transactions: trs} }\n }\n};\n\n// : (Transaction) → EditorState\nEditorState.prototype.applyInner = function applyInner (tr) {\n if (!tr.before.eq(this.doc)) { throw new RangeError(\"Applying a mismatched transaction\") }\n var newInstance = new EditorState(this.config), fields = this.config.fields;\n for (var i = 0; i < fields.length; i++) {\n var field = fields[i];\n newInstance[field.name] = field.apply(tr, this[field.name], this, newInstance);\n }\n for (var i$1 = 0; i$1 < applyListeners.length; i$1++) { applyListeners[i$1](this, tr, newInstance); }\n return newInstance\n};\n\n// :: Transaction\n// Start a [transaction](#state.Transaction) from this state.\nprototypeAccessors$1.tr.get = function () { return new Transaction(this) };\n\n// :: (Object) → EditorState\n// Create a new state.\n//\n// config::- Configuration options. Must contain `schema` or `doc` (or both).\n//\n// schema:: ?Schema\n// The schema to use (only relevant if no `doc` is specified).\n//\n// doc:: ?Node\n// The starting document.\n//\n// selection:: ?Selection\n// A valid selection in the document.\n//\n// storedMarks:: ?[Mark]\n// The initial set of [stored marks](#state.EditorState.storedMarks).\n//\n// plugins:: ?[Plugin]\n// The plugins that should be active in this state.\nEditorState.create = function create (config) {\n var $config = new Configuration(config.doc ? config.doc.type.schema : config.schema, config.plugins);\n var instance = new EditorState($config);\n for (var i = 0; i < $config.fields.length; i++)\n { instance[$config.fields[i].name] = $config.fields[i].init(config, instance); }\n return instance\n};\n\n// :: (Object) → EditorState\n// Create a new state based on this one, but with an adjusted set of\n// active plugins. State fields that exist in both sets of plugins\n// are kept unchanged. Those that no longer exist are dropped, and\n// those that are new are initialized using their\n// [`init`](#state.StateField.init) method, passing in the new\n// configuration object..\n//\n// config::- configuration options\n//\n// plugins:: [Plugin]\n// New set of active plugins.\nEditorState.prototype.reconfigure = function reconfigure (config) {\n var $config = new Configuration(this.schema, config.plugins);\n var fields = $config.fields, instance = new EditorState($config);\n for (var i = 0; i < fields.length; i++) {\n var name = fields[i].name;\n instance[name] = this.hasOwnProperty(name) ? this[name] : fields[i].init(config, instance);\n }\n return instance\n};\n\n// :: (?union, string, number>) → Object\n// Serialize this state to JSON. If you want to serialize the state\n// of plugins, pass an object mapping property names to use in the\n// resulting JSON object to plugin objects. The argument may also be\n// a string or number, in which case it is ignored, to support the\n// way `JSON.stringify` calls `toString` methods.\nEditorState.prototype.toJSON = function toJSON (pluginFields) {\n var result = {doc: this.doc.toJSON(), selection: this.selection.toJSON()};\n if (this.storedMarks) { result.storedMarks = this.storedMarks.map(function (m) { return m.toJSON(); }); }\n if (pluginFields && typeof pluginFields == 'object') { for (var prop in pluginFields) {\n if (prop == \"doc\" || prop == \"selection\")\n { throw new RangeError(\"The JSON fields `doc` and `selection` are reserved\") }\n var plugin = pluginFields[prop], state = plugin.spec.state;\n if (state && state.toJSON) { result[prop] = state.toJSON.call(plugin, this[plugin.key]); }\n } }\n return result\n};\n\n// :: (Object, Object, ?Object) → EditorState\n// Deserialize a JSON representation of a state. `config` should\n// have at least a `schema` field, and should contain array of\n// plugins to initialize the state with. `pluginFields` can be used\n// to deserialize the state of plugins, by associating plugin\n// instances with the property names they use in the JSON object.\n//\n// config::- configuration options\n//\n// schema:: Schema\n// The schema to use.\n//\n// plugins:: ?[Plugin]\n// The set of active plugins.\nEditorState.fromJSON = function fromJSON (config, json, pluginFields) {\n if (!json) { throw new RangeError(\"Invalid input for EditorState.fromJSON\") }\n if (!config.schema) { throw new RangeError(\"Required config field 'schema' missing\") }\n var $config = new Configuration(config.schema, config.plugins);\n var instance = new EditorState($config);\n $config.fields.forEach(function (field) {\n if (field.name == \"doc\") {\n instance.doc = Node.fromJSON(config.schema, json.doc);\n } else if (field.name == \"selection\") {\n instance.selection = Selection.fromJSON(instance.doc, json.selection);\n } else if (field.name == \"storedMarks\") {\n if (json.storedMarks) { instance.storedMarks = json.storedMarks.map(config.schema.markFromJSON); }\n } else {\n if (pluginFields) { for (var prop in pluginFields) {\n var plugin = pluginFields[prop], state = plugin.spec.state;\n if (plugin.key == field.name && state && state.fromJSON &&\n Object.prototype.hasOwnProperty.call(json, prop)) {\n // This field belongs to a plugin mapped to a JSON field, read it from there.\n instance[field.name] = state.fromJSON.call(plugin, config, json[prop], instance);\n return\n }\n } }\n instance[field.name] = field.init(config, instance);\n }\n });\n return instance\n};\n\n// Kludge to allow the view to track mappings between different\n// instances of a state.\n//\n// FIXME this is no longer needed as of prosemirror-view 1.9.0,\n// though due to backwards-compat we should probably keep it around\n// for a while (if only as a no-op)\nEditorState.addApplyListener = function addApplyListener (f) {\n applyListeners.push(f);\n};\nEditorState.removeApplyListener = function removeApplyListener (f) {\n var found = applyListeners.indexOf(f);\n if (found > -1) { applyListeners.splice(found, 1); }\n};\n\nObject.defineProperties( EditorState.prototype, prototypeAccessors$1 );\n\nvar applyListeners = [];\n\n// PluginSpec:: interface\n//\n// This is the type passed to the [`Plugin`](#state.Plugin)\n// constructor. It provides a definition for a plugin.\n//\n// props:: ?EditorProps\n// The [view props](#view.EditorProps) added by this plugin. Props\n// that are functions will be bound to have the plugin instance as\n// their `this` binding.\n//\n// state:: ?StateField\n// Allows a plugin to define a [state field](#state.StateField), an\n// extra slot in the state object in which it can keep its own data.\n//\n// key:: ?PluginKey\n// Can be used to make this a keyed plugin. You can have only one\n// plugin with a given key in a given state, but it is possible to\n// access the plugin's configuration and state through the key,\n// without having access to the plugin instance object.\n//\n// view:: ?(EditorView) → Object\n// When the plugin needs to interact with the editor view, or\n// set something up in the DOM, use this field. The function\n// will be called when the plugin's state is associated with an\n// editor view.\n//\n// return::-\n// Should return an object with the following optional\n// properties:\n//\n// update:: ?(view: EditorView, prevState: EditorState)\n// Called whenever the view's state is updated.\n//\n// destroy:: ?()\n// Called when the view is destroyed or receives a state\n// with different plugins.\n//\n// filterTransaction:: ?(Transaction, EditorState) → bool\n// When present, this will be called before a transaction is\n// applied by the state, allowing the plugin to cancel it (by\n// returning false).\n//\n// appendTransaction:: ?(transactions: [Transaction], oldState: EditorState, newState: EditorState) → ?Transaction\n// Allows the plugin to append another transaction to be applied\n// after the given array of transactions. When another plugin\n// appends a transaction after this was called, it is called again\n// with the new state and new transactions—but only the new\n// transactions, i.e. it won't be passed transactions that it\n// already saw.\n\nfunction bindProps(obj, self, target) {\n for (var prop in obj) {\n var val = obj[prop];\n if (val instanceof Function) { val = val.bind(self); }\n else if (prop == \"handleDOMEvents\") { val = bindProps(val, self, {}); }\n target[prop] = val;\n }\n return target\n}\n\n// ::- Plugins bundle functionality that can be added to an editor.\n// They are part of the [editor state](#state.EditorState) and\n// may influence that state and the view that contains it.\nvar Plugin = function Plugin(spec) {\n // :: EditorProps\n // The [props](#view.EditorProps) exported by this plugin.\n this.props = {};\n if (spec.props) { bindProps(spec.props, this, this.props); }\n // :: Object\n // The plugin's [spec object](#state.PluginSpec).\n this.spec = spec;\n this.key = spec.key ? spec.key.key : createKey(\"plugin\");\n};\n\n// :: (EditorState) → any\n// Extract the plugin's state field from an editor state.\nPlugin.prototype.getState = function getState (state) { return state[this.key] };\n\n// StateField:: interface\n// A plugin spec may provide a state field (under its\n// [`state`](#state.PluginSpec.state) property) of this type, which\n// describes the state it wants to keep. Functions provided here are\n// always called with the plugin instance as their `this` binding.\n//\n// init:: (config: Object, instance: EditorState) → T\n// Initialize the value of the field. `config` will be the object\n// passed to [`EditorState.create`](#state.EditorState^create). Note\n// that `instance` is a half-initialized state instance, and will\n// not have values for plugin fields initialized after this one.\n//\n// apply:: (tr: Transaction, value: T, oldState: EditorState, newState: EditorState) → T\n// Apply the given transaction to this state field, producing a new\n// field value. Note that the `newState` argument is again a partially\n// constructed state does not yet contain the state from plugins\n// coming after this one.\n//\n// toJSON:: ?(value: T) → *\n// Convert this field to JSON. Optional, can be left off to disable\n// JSON serialization for the field.\n//\n// fromJSON:: ?(config: Object, value: *, state: EditorState) → T\n// Deserialize the JSON representation of this field. Note that the\n// `state` argument is again a half-initialized state.\n\nvar keys = Object.create(null);\n\nfunction createKey(name) {\n if (name in keys) { return name + \"$\" + ++keys[name] }\n keys[name] = 0;\n return name + \"$\"\n}\n\n// ::- A key is used to [tag](#state.PluginSpec.key)\n// plugins in a way that makes it possible to find them, given an\n// editor state. Assigning a key does mean only one plugin of that\n// type can be active in a state.\nvar PluginKey = function PluginKey(name) {\nif ( name === void 0 ) name = \"key\";\n this.key = createKey(name); };\n\n// :: (EditorState) → ?Plugin\n// Get the active plugin with this key, if any, from an editor\n// state.\nPluginKey.prototype.get = function get (state) { return state.config.pluginsByKey[this.key] };\n\n// :: (EditorState) → ?any\n// Get the plugin's state from an editor state.\nPluginKey.prototype.getState = function getState (state) { return state[this.key] };\n\nexport { AllSelection, EditorState, NodeSelection, Plugin, PluginKey, Selection, SelectionRange, TextSelection, Transaction };\n//# sourceMappingURL=index.es.js.map\n","import { TextSelection, NodeSelection, Selection, AllSelection } from 'prosemirror-state';\nimport { DOMSerializer, Fragment, Mark, DOMParser, Slice } from 'prosemirror-model';\nimport { dropPoint } from 'prosemirror-transform';\n\nvar result = {};\n\nif (typeof navigator != \"undefined\" && typeof document != \"undefined\") {\n var ie_edge = /Edge\\/(\\d+)/.exec(navigator.userAgent);\n var ie_upto10 = /MSIE \\d/.test(navigator.userAgent);\n var ie_11up = /Trident\\/(?:[7-9]|\\d{2,})\\..*rv:(\\d+)/.exec(navigator.userAgent);\n\n result.mac = /Mac/.test(navigator.platform);\n var ie = result.ie = !!(ie_upto10 || ie_11up || ie_edge);\n result.ie_version = ie_upto10 ? document.documentMode || 6 : ie_11up ? +ie_11up[1] : ie_edge ? +ie_edge[1] : null;\n result.gecko = !ie && /gecko\\/(\\d+)/i.test(navigator.userAgent);\n result.gecko_version = result.gecko && +(/Firefox\\/(\\d+)/.exec(navigator.userAgent) || [0, 0])[1];\n var chrome = !ie && /Chrome\\/(\\d+)/.exec(navigator.userAgent);\n result.chrome = !!chrome;\n result.chrome_version = chrome && +chrome[1];\n // Is true for both iOS and iPadOS for convenience\n result.safari = !ie && /Apple Computer/.test(navigator.vendor);\n result.ios = result.safari && (/Mobile\\/\\w+/.test(navigator.userAgent) || navigator.maxTouchPoints > 2);\n result.android = /Android \\d/.test(navigator.userAgent);\n result.webkit = \"webkitFontSmoothing\" in document.documentElement.style;\n result.webkit_version = result.webkit && +(/\\bAppleWebKit\\/(\\d+)/.exec(navigator.userAgent) || [0, 0])[1];\n}\n\nvar domIndex = function(node) {\n for (var index = 0;; index++) {\n node = node.previousSibling;\n if (!node) { return index }\n }\n};\n\nvar parentNode = function(node) {\n var parent = node.parentNode;\n return parent && parent.nodeType == 11 ? parent.host : parent\n};\n\nvar reusedRange = null;\n\n// Note that this will always return the same range, because DOM range\n// objects are every expensive, and keep slowing down subsequent DOM\n// updates, for some reason.\nvar textRange = function(node, from, to) {\n var range = reusedRange || (reusedRange = document.createRange());\n range.setEnd(node, to == null ? node.nodeValue.length : to);\n range.setStart(node, from || 0);\n return range\n};\n\n// Scans forward and backward through DOM positions equivalent to the\n// given one to see if the two are in the same place (i.e. after a\n// text node vs at the end of that text node)\nvar isEquivalentPosition = function(node, off, targetNode, targetOff) {\n return targetNode && (scanFor(node, off, targetNode, targetOff, -1) ||\n scanFor(node, off, targetNode, targetOff, 1))\n};\n\nvar atomElements = /^(img|br|input|textarea|hr)$/i;\n\nfunction scanFor(node, off, targetNode, targetOff, dir) {\n for (;;) {\n if (node == targetNode && off == targetOff) { return true }\n if (off == (dir < 0 ? 0 : nodeSize(node))) {\n var parent = node.parentNode;\n if (parent.nodeType != 1 || hasBlockDesc(node) || atomElements.test(node.nodeName) || node.contentEditable == \"false\")\n { return false }\n off = domIndex(node) + (dir < 0 ? 0 : 1);\n node = parent;\n } else if (node.nodeType == 1) {\n node = node.childNodes[off + (dir < 0 ? -1 : 0)];\n if (node.contentEditable == \"false\") { return false }\n off = dir < 0 ? nodeSize(node) : 0;\n } else {\n return false\n }\n }\n}\n\nfunction nodeSize(node) {\n return node.nodeType == 3 ? node.nodeValue.length : node.childNodes.length\n}\n\nfunction isOnEdge(node, offset, parent) {\n for (var atStart = offset == 0, atEnd = offset == nodeSize(node); atStart || atEnd;) {\n if (node == parent) { return true }\n var index = domIndex(node);\n node = node.parentNode;\n if (!node) { return false }\n atStart = atStart && index == 0;\n atEnd = atEnd && index == nodeSize(node);\n }\n}\n\nfunction hasBlockDesc(dom) {\n var desc;\n for (var cur = dom; cur; cur = cur.parentNode) { if (desc = cur.pmViewDesc) { break } }\n return desc && desc.node && desc.node.isBlock && (desc.dom == dom || desc.contentDOM == dom)\n}\n\n// Work around Chrome issue https://bugs.chromium.org/p/chromium/issues/detail?id=447523\n// (isCollapsed inappropriately returns true in shadow dom)\nvar selectionCollapsed = function(domSel) {\n var collapsed = domSel.isCollapsed;\n if (collapsed && result.chrome && domSel.rangeCount && !domSel.getRangeAt(0).collapsed)\n { collapsed = false; }\n return collapsed\n};\n\nfunction keyEvent(keyCode, key) {\n var event = document.createEvent(\"Event\");\n event.initEvent(\"keydown\", true, true);\n event.keyCode = keyCode;\n event.key = event.code = key;\n return event\n}\n\nfunction windowRect(doc) {\n return {left: 0, right: doc.documentElement.clientWidth,\n top: 0, bottom: doc.documentElement.clientHeight}\n}\n\nfunction getSide(value, side) {\n return typeof value == \"number\" ? value : value[side]\n}\n\nfunction clientRect(node) {\n var rect = node.getBoundingClientRect();\n // Make sure scrollbar width isn't included in the rectangle\n return {left: rect.left, right: rect.left + node.clientWidth,\n top: rect.top, bottom: rect.top + node.clientHeight}\n}\n\nfunction scrollRectIntoView(view, rect, startDOM) {\n var scrollThreshold = view.someProp(\"scrollThreshold\") || 0, scrollMargin = view.someProp(\"scrollMargin\") || 5;\n var doc = view.dom.ownerDocument;\n for (var parent = startDOM || view.dom;; parent = parentNode(parent)) {\n if (!parent) { break }\n if (parent.nodeType != 1) { continue }\n var atTop = parent == doc.body || parent.nodeType != 1;\n var bounding = atTop ? windowRect(doc) : clientRect(parent);\n var moveX = 0, moveY = 0;\n if (rect.top < bounding.top + getSide(scrollThreshold, \"top\"))\n { moveY = -(bounding.top - rect.top + getSide(scrollMargin, \"top\")); }\n else if (rect.bottom > bounding.bottom - getSide(scrollThreshold, \"bottom\"))\n { moveY = rect.bottom - bounding.bottom + getSide(scrollMargin, \"bottom\"); }\n if (rect.left < bounding.left + getSide(scrollThreshold, \"left\"))\n { moveX = -(bounding.left - rect.left + getSide(scrollMargin, \"left\")); }\n else if (rect.right > bounding.right - getSide(scrollThreshold, \"right\"))\n { moveX = rect.right - bounding.right + getSide(scrollMargin, \"right\"); }\n if (moveX || moveY) {\n if (atTop) {\n doc.defaultView.scrollBy(moveX, moveY);\n } else {\n var startX = parent.scrollLeft, startY = parent.scrollTop;\n if (moveY) { parent.scrollTop += moveY; }\n if (moveX) { parent.scrollLeft += moveX; }\n var dX = parent.scrollLeft - startX, dY = parent.scrollTop - startY;\n rect = {left: rect.left - dX, top: rect.top - dY, right: rect.right - dX, bottom: rect.bottom - dY};\n }\n }\n if (atTop) { break }\n }\n}\n\n// Store the scroll position of the editor's parent nodes, along with\n// the top position of an element near the top of the editor, which\n// will be used to make sure the visible viewport remains stable even\n// when the size of the content above changes.\nfunction storeScrollPos(view) {\n var rect = view.dom.getBoundingClientRect(), startY = Math.max(0, rect.top);\n var refDOM, refTop;\n for (var x = (rect.left + rect.right) / 2, y = startY + 1;\n y < Math.min(innerHeight, rect.bottom); y += 5) {\n var dom = view.root.elementFromPoint(x, y);\n if (dom == view.dom || !view.dom.contains(dom)) { continue }\n var localRect = dom.getBoundingClientRect();\n if (localRect.top >= startY - 20) {\n refDOM = dom;\n refTop = localRect.top;\n break\n }\n }\n return {refDOM: refDOM, refTop: refTop, stack: scrollStack(view.dom)}\n}\n\nfunction scrollStack(dom) {\n var stack = [], doc = dom.ownerDocument;\n for (; dom; dom = parentNode(dom)) {\n stack.push({dom: dom, top: dom.scrollTop, left: dom.scrollLeft});\n if (dom == doc) { break }\n }\n return stack\n}\n\n// Reset the scroll position of the editor's parent nodes to that what\n// it was before, when storeScrollPos was called.\nfunction resetScrollPos(ref) {\n var refDOM = ref.refDOM;\n var refTop = ref.refTop;\n var stack = ref.stack;\n\n var newRefTop = refDOM ? refDOM.getBoundingClientRect().top : 0;\n restoreScrollStack(stack, newRefTop == 0 ? 0 : newRefTop - refTop);\n}\n\nfunction restoreScrollStack(stack, dTop) {\n for (var i = 0; i < stack.length; i++) {\n var ref = stack[i];\n var dom = ref.dom;\n var top = ref.top;\n var left = ref.left;\n if (dom.scrollTop != top + dTop) { dom.scrollTop = top + dTop; }\n if (dom.scrollLeft != left) { dom.scrollLeft = left; }\n }\n}\n\nvar preventScrollSupported = null;\n// Feature-detects support for .focus({preventScroll: true}), and uses\n// a fallback kludge when not supported.\nfunction focusPreventScroll(dom) {\n if (dom.setActive) { return dom.setActive() } // in IE\n if (preventScrollSupported) { return dom.focus(preventScrollSupported) }\n\n var stored = scrollStack(dom);\n dom.focus(preventScrollSupported == null ? {\n get preventScroll() {\n preventScrollSupported = {preventScroll: true};\n return true\n }\n } : undefined);\n if (!preventScrollSupported) {\n preventScrollSupported = false;\n restoreScrollStack(stored, 0);\n }\n}\n\nfunction findOffsetInNode(node, coords) {\n var closest, dxClosest = 2e8, coordsClosest, offset = 0;\n var rowBot = coords.top, rowTop = coords.top;\n for (var child = node.firstChild, childIndex = 0; child; child = child.nextSibling, childIndex++) {\n var rects = (void 0);\n if (child.nodeType == 1) { rects = child.getClientRects(); }\n else if (child.nodeType == 3) { rects = textRange(child).getClientRects(); }\n else { continue }\n\n for (var i = 0; i < rects.length; i++) {\n var rect = rects[i];\n if (rect.top <= rowBot && rect.bottom >= rowTop) {\n rowBot = Math.max(rect.bottom, rowBot);\n rowTop = Math.min(rect.top, rowTop);\n var dx = rect.left > coords.left ? rect.left - coords.left\n : rect.right < coords.left ? coords.left - rect.right : 0;\n if (dx < dxClosest) {\n closest = child;\n dxClosest = dx;\n coordsClosest = dx && closest.nodeType == 3 ? {left: rect.right < coords.left ? rect.right : rect.left, top: coords.top} : coords;\n if (child.nodeType == 1 && dx)\n { offset = childIndex + (coords.left >= (rect.left + rect.right) / 2 ? 1 : 0); }\n continue\n }\n }\n if (!closest && (coords.left >= rect.right && coords.top >= rect.top ||\n coords.left >= rect.left && coords.top >= rect.bottom))\n { offset = childIndex + 1; }\n }\n }\n if (closest && closest.nodeType == 3) { return findOffsetInText(closest, coordsClosest) }\n if (!closest || (dxClosest && closest.nodeType == 1)) { return {node: node, offset: offset} }\n return findOffsetInNode(closest, coordsClosest)\n}\n\nfunction findOffsetInText(node, coords) {\n var len = node.nodeValue.length;\n var range = document.createRange();\n for (var i = 0; i < len; i++) {\n range.setEnd(node, i + 1);\n range.setStart(node, i);\n var rect = singleRect(range, 1);\n if (rect.top == rect.bottom) { continue }\n if (inRect(coords, rect))\n { return {node: node, offset: i + (coords.left >= (rect.left + rect.right) / 2 ? 1 : 0)} }\n }\n return {node: node, offset: 0}\n}\n\nfunction inRect(coords, rect) {\n return coords.left >= rect.left - 1 && coords.left <= rect.right + 1&&\n coords.top >= rect.top - 1 && coords.top <= rect.bottom + 1\n}\n\nfunction targetKludge(dom, coords) {\n var parent = dom.parentNode;\n if (parent && /^li$/i.test(parent.nodeName) && coords.left < dom.getBoundingClientRect().left)\n { return parent }\n return dom\n}\n\nfunction posFromElement(view, elt, coords) {\n var ref = findOffsetInNode(elt, coords);\n var node = ref.node;\n var offset = ref.offset;\n var bias = -1;\n if (node.nodeType == 1 && !node.firstChild) {\n var rect = node.getBoundingClientRect();\n bias = rect.left != rect.right && coords.left > (rect.left + rect.right) / 2 ? 1 : -1;\n }\n return view.docView.posFromDOM(node, offset, bias)\n}\n\nfunction posFromCaret(view, node, offset, coords) {\n // Browser (in caretPosition/RangeFromPoint) will agressively\n // normalize towards nearby inline nodes. Since we are interested in\n // positions between block nodes too, we first walk up the hierarchy\n // of nodes to see if there are block nodes that the coordinates\n // fall outside of. If so, we take the position before/after that\n // block. If not, we call `posFromDOM` on the raw node/offset.\n var outside = -1;\n for (var cur = node;;) {\n if (cur == view.dom) { break }\n var desc = view.docView.nearestDesc(cur, true);\n if (!desc) { return null }\n if (desc.node.isBlock && desc.parent) {\n var rect = desc.dom.getBoundingClientRect();\n if (rect.left > coords.left || rect.top > coords.top) { outside = desc.posBefore; }\n else if (rect.right < coords.left || rect.bottom < coords.top) { outside = desc.posAfter; }\n else { break }\n }\n cur = desc.dom.parentNode;\n }\n return outside > -1 ? outside : view.docView.posFromDOM(node, offset)\n}\n\nfunction elementFromPoint(element, coords, box) {\n var len = element.childNodes.length;\n if (len && box.top < box.bottom) {\n for (var startI = Math.max(0, Math.min(len - 1, Math.floor(len * (coords.top - box.top) / (box.bottom - box.top)) - 2)), i = startI;;) {\n var child = element.childNodes[i];\n if (child.nodeType == 1) {\n var rects = child.getClientRects();\n for (var j = 0; j < rects.length; j++) {\n var rect = rects[j];\n if (inRect(coords, rect)) { return elementFromPoint(child, coords, rect) }\n }\n }\n if ((i = (i + 1) % len) == startI) { break }\n }\n }\n return element\n}\n\n// Given an x,y position on the editor, get the position in the document.\nfunction posAtCoords(view, coords) {\n var assign, assign$1;\n\n var root = view.root, node, offset;\n if (root.caretPositionFromPoint) {\n try { // Firefox throws for this call in hard-to-predict circumstances (#994)\n var pos$1 = root.caretPositionFromPoint(coords.left, coords.top);\n if (pos$1) { ((assign = pos$1, node = assign.offsetNode, offset = assign.offset)); }\n } catch (_) {}\n }\n if (!node && root.caretRangeFromPoint) {\n var range = root.caretRangeFromPoint(coords.left, coords.top);\n if (range) { ((assign$1 = range, node = assign$1.startContainer, offset = assign$1.startOffset)); }\n }\n\n var elt = root.elementFromPoint(coords.left, coords.top + 1), pos;\n if (!elt || !view.dom.contains(elt.nodeType != 1 ? elt.parentNode : elt)) {\n var box = view.dom.getBoundingClientRect();\n if (!inRect(coords, box)) { return null }\n elt = elementFromPoint(view.dom, coords, box);\n if (!elt) { return null }\n }\n // Safari's caretRangeFromPoint returns nonsense when on a draggable element\n if (result.safari && elt.draggable) { node = offset = null; }\n elt = targetKludge(elt, coords);\n if (node) {\n if (result.gecko && node.nodeType == 1) {\n // Firefox will sometimes return offsets into nodes, which\n // have no actual children, from caretPositionFromPoint (#953)\n offset = Math.min(offset, node.childNodes.length);\n // It'll also move the returned position before image nodes,\n // even if those are behind it.\n if (offset < node.childNodes.length) {\n var next = node.childNodes[offset], box$1;\n if (next.nodeName == \"IMG\" && (box$1 = next.getBoundingClientRect()).right <= coords.left &&\n box$1.bottom > coords.top)\n { offset++; }\n }\n }\n // Suspiciously specific kludge to work around caret*FromPoint\n // never returning a position at the end of the document\n if (node == view.dom && offset == node.childNodes.length - 1 && node.lastChild.nodeType == 1 &&\n coords.top > node.lastChild.getBoundingClientRect().bottom)\n { pos = view.state.doc.content.size; }\n // Ignore positions directly after a BR, since caret*FromPoint\n // 'round up' positions that would be more accurately placed\n // before the BR node.\n else if (offset == 0 || node.nodeType != 1 || node.childNodes[offset - 1].nodeName != \"BR\")\n { pos = posFromCaret(view, node, offset, coords); }\n }\n if (pos == null) { pos = posFromElement(view, elt, coords); }\n\n var desc = view.docView.nearestDesc(elt, true);\n return {pos: pos, inside: desc ? desc.posAtStart - desc.border : -1}\n}\n\nfunction singleRect(object, bias) {\n var rects = object.getClientRects();\n return !rects.length ? object.getBoundingClientRect() : rects[bias < 0 ? 0 : rects.length - 1]\n}\n\nvar BIDI = /[\\u0590-\\u05f4\\u0600-\\u06ff\\u0700-\\u08ac]/;\n\n// : (EditorView, number, number) → {left: number, top: number, right: number, bottom: number}\n// Given a position in the document model, get a bounding box of the\n// character at that position, relative to the window.\nfunction coordsAtPos(view, pos, side) {\n var ref = view.docView.domFromPos(pos, side < 0 ? -1 : 1);\n var node = ref.node;\n var offset = ref.offset;\n\n var supportEmptyRange = result.webkit || result.gecko;\n if (node.nodeType == 3) {\n // These browsers support querying empty text ranges. Prefer that in\n // bidi context or when at the end of a node.\n if (supportEmptyRange && (BIDI.test(node.nodeValue) || (side < 0 ? !offset : offset == node.nodeValue.length))) {\n var rect = singleRect(textRange(node, offset, offset), side);\n // Firefox returns bad results (the position before the space)\n // when querying a position directly after line-broken\n // whitespace. Detect this situation and and kludge around it\n if (result.gecko && offset && /\\s/.test(node.nodeValue[offset - 1]) && offset < node.nodeValue.length) {\n var rectBefore = singleRect(textRange(node, offset - 1, offset - 1), -1);\n if (rectBefore.top == rect.top) {\n var rectAfter = singleRect(textRange(node, offset, offset + 1), -1);\n if (rectAfter.top != rect.top)\n { return flattenV(rectAfter, rectAfter.left < rectBefore.left) }\n }\n }\n return rect\n } else {\n var from = offset, to = offset, takeSide = side < 0 ? 1 : -1;\n if (side < 0 && !offset) { to++; takeSide = -1; }\n else if (side >= 0 && offset == node.nodeValue.length) { from--; takeSide = 1; }\n else if (side < 0) { from--; }\n else { to ++; }\n return flattenV(singleRect(textRange(node, from, to), takeSide), takeSide < 0)\n }\n }\n\n // Return a horizontal line in block context\n if (!view.state.doc.resolve(pos).parent.inlineContent) {\n if (offset && (side < 0 || offset == nodeSize(node))) {\n var before = node.childNodes[offset - 1];\n if (before.nodeType == 1) { return flattenH(before.getBoundingClientRect(), false) }\n }\n if (offset < nodeSize(node)) {\n var after = node.childNodes[offset];\n if (after.nodeType == 1) { return flattenH(after.getBoundingClientRect(), true) }\n }\n return flattenH(node.getBoundingClientRect(), side >= 0)\n }\n\n // Inline, not in text node (this is not Bidi-safe)\n if (offset && (side < 0 || offset == nodeSize(node))) {\n var before$1 = node.childNodes[offset - 1];\n var target = before$1.nodeType == 3 ? textRange(before$1, nodeSize(before$1) - (supportEmptyRange ? 0 : 1))\n // BR nodes tend to only return the rectangle before them.\n // Only use them if they are the last element in their parent\n : before$1.nodeType == 1 && (before$1.nodeName != \"BR\" || !before$1.nextSibling) ? before$1 : null;\n if (target) { return flattenV(singleRect(target, 1), false) }\n }\n if (offset < nodeSize(node)) {\n var after$1 = node.childNodes[offset];\n var target$1 = after$1.nodeType == 3 ? textRange(after$1, 0, (supportEmptyRange ? 0 : 1))\n : after$1.nodeType == 1 ? after$1 : null;\n if (target$1) { return flattenV(singleRect(target$1, -1), true) }\n }\n // All else failed, just try to get a rectangle for the target node\n return flattenV(singleRect(node.nodeType == 3 ? textRange(node) : node, -side), side >= 0)\n}\n\nfunction flattenV(rect, left) {\n if (rect.width == 0) { return rect }\n var x = left ? rect.left : rect.right;\n return {top: rect.top, bottom: rect.bottom, left: x, right: x}\n}\n\nfunction flattenH(rect, top) {\n if (rect.height == 0) { return rect }\n var y = top ? rect.top : rect.bottom;\n return {top: y, bottom: y, left: rect.left, right: rect.right}\n}\n\nfunction withFlushedState(view, state, f) {\n var viewState = view.state, active = view.root.activeElement;\n if (viewState != state) { view.updateState(state); }\n if (active != view.dom) { view.focus(); }\n try {\n return f()\n } finally {\n if (viewState != state) { view.updateState(viewState); }\n if (active != view.dom && active) { active.focus(); }\n }\n}\n\n// : (EditorView, number, number)\n// Whether vertical position motion in a given direction\n// from a position would leave a text block.\nfunction endOfTextblockVertical(view, state, dir) {\n var sel = state.selection;\n var $pos = dir == \"up\" ? sel.$from : sel.$to;\n return withFlushedState(view, state, function () {\n var ref = view.docView.domFromPos($pos.pos, dir == \"up\" ? -1 : 1);\n var dom = ref.node;\n for (;;) {\n var nearest = view.docView.nearestDesc(dom, true);\n if (!nearest) { break }\n if (nearest.node.isBlock) { dom = nearest.dom; break }\n dom = nearest.dom.parentNode;\n }\n var coords = coordsAtPos(view, $pos.pos, 1);\n for (var child = dom.firstChild; child; child = child.nextSibling) {\n var boxes = (void 0);\n if (child.nodeType == 1) { boxes = child.getClientRects(); }\n else if (child.nodeType == 3) { boxes = textRange(child, 0, child.nodeValue.length).getClientRects(); }\n else { continue }\n for (var i = 0; i < boxes.length; i++) {\n var box = boxes[i];\n if (box.bottom > box.top && (dir == \"up\" ? box.bottom < coords.top + 1 : box.top > coords.bottom - 1))\n { return false }\n }\n }\n return true\n })\n}\n\nvar maybeRTL = /[\\u0590-\\u08ac]/;\n\nfunction endOfTextblockHorizontal(view, state, dir) {\n var ref = state.selection;\n var $head = ref.$head;\n if (!$head.parent.isTextblock) { return false }\n var offset = $head.parentOffset, atStart = !offset, atEnd = offset == $head.parent.content.size;\n var sel = getSelection();\n // If the textblock is all LTR, or the browser doesn't support\n // Selection.modify (Edge), fall back to a primitive approach\n if (!maybeRTL.test($head.parent.textContent) || !sel.modify)\n { return dir == \"left\" || dir == \"backward\" ? atStart : atEnd }\n\n return withFlushedState(view, state, function () {\n // This is a huge hack, but appears to be the best we can\n // currently do: use `Selection.modify` to move the selection by\n // one character, and see if that moves the cursor out of the\n // textblock (or doesn't move it at all, when at the start/end of\n // the document).\n var oldRange = sel.getRangeAt(0), oldNode = sel.focusNode, oldOff = sel.focusOffset;\n var oldBidiLevel = sel.caretBidiLevel; // Only for Firefox\n sel.modify(\"move\", dir, \"character\");\n var parentDOM = $head.depth ? view.docView.domAfterPos($head.before()) : view.dom;\n var result = !parentDOM.contains(sel.focusNode.nodeType == 1 ? sel.focusNode : sel.focusNode.parentNode) ||\n (oldNode == sel.focusNode && oldOff == sel.focusOffset);\n // Restore the previous selection\n sel.removeAllRanges();\n sel.addRange(oldRange);\n if (oldBidiLevel != null) { sel.caretBidiLevel = oldBidiLevel; }\n return result\n })\n}\n\nvar cachedState = null, cachedDir = null, cachedResult = false;\nfunction endOfTextblock(view, state, dir) {\n if (cachedState == state && cachedDir == dir) { return cachedResult }\n cachedState = state; cachedDir = dir;\n return cachedResult = dir == \"up\" || dir == \"down\"\n ? endOfTextblockVertical(view, state, dir)\n : endOfTextblockHorizontal(view, state, dir)\n}\n\n// NodeView:: interface\n//\n// By default, document nodes are rendered using the result of the\n// [`toDOM`](#model.NodeSpec.toDOM) method of their spec, and managed\n// entirely by the editor. For some use cases, such as embedded\n// node-specific editing interfaces, you want more control over\n// the behavior of a node's in-editor representation, and need to\n// [define](#view.EditorProps.nodeViews) a custom node view.\n//\n// Mark views only support `dom` and `contentDOM`, and don't support\n// any of the node view methods.\n//\n// Objects returned as node views must conform to this interface.\n//\n// dom:: ?dom.Node\n// The outer DOM node that represents the document node. When not\n// given, the default strategy is used to create a DOM node.\n//\n// contentDOM:: ?dom.Node\n// The DOM node that should hold the node's content. Only meaningful\n// if the node view also defines a `dom` property and if its node\n// type is not a leaf node type. When this is present, ProseMirror\n// will take care of rendering the node's children into it. When it\n// is not present, the node view itself is responsible for rendering\n// (or deciding not to render) its child nodes.\n//\n// update:: ?(node: Node, decorations: [Decoration], innerDecorations: DecorationSource) → bool\n// When given, this will be called when the view is updating itself.\n// It will be given a node (possibly of a different type), an array\n// of active decorations around the node (which are automatically\n// drawn, and the node view may ignore if it isn't interested in\n// them), and a [decoration source](#view.DecorationSource) that\n// represents any decorations that apply to the content of the node\n// (which again may be ignored). It should return true if it was\n// able to update to that node, and false otherwise. If the node\n// view has a `contentDOM` property (or no `dom` property), updating\n// its child nodes will be handled by ProseMirror.\n//\n// selectNode:: ?()\n// Can be used to override the way the node's selected status (as a\n// node selection) is displayed.\n//\n// deselectNode:: ?()\n// When defining a `selectNode` method, you should also provide a\n// `deselectNode` method to remove the effect again.\n//\n// setSelection:: ?(anchor: number, head: number, root: dom.Document)\n// This will be called to handle setting the selection inside the\n// node. The `anchor` and `head` positions are relative to the start\n// of the node. By default, a DOM selection will be created between\n// the DOM positions corresponding to those positions, but if you\n// override it you can do something else.\n//\n// stopEvent:: ?(event: dom.Event) → bool\n// Can be used to prevent the editor view from trying to handle some\n// or all DOM events that bubble up from the node view. Events for\n// which this returns true are not handled by the editor.\n//\n// ignoreMutation:: ?(dom.MutationRecord) → bool\n// Called when a DOM\n// [mutation](https://developer.mozilla.org/en-US/docs/Web/API/MutationObserver)\n// or a selection change happens within the view. When the change is\n// a selection change, the record will have a `type` property of\n// `\"selection\"` (which doesn't occur for native mutation records).\n// Return false if the editor should re-read the selection or\n// re-parse the range around the mutation, true if it can safely be\n// ignored.\n//\n// destroy:: ?()\n// Called when the node view is removed from the editor or the whole\n// editor is destroyed. (Not available for marks.)\n\n// View descriptions are data structures that describe the DOM that is\n// used to represent the editor's content. They are used for:\n//\n// - Incremental redrawing when the document changes\n//\n// - Figuring out what part of the document a given DOM position\n// corresponds to\n//\n// - Wiring in custom implementations of the editing interface for a\n// given node\n//\n// They form a doubly-linked mutable tree, starting at `view.docView`.\n\nvar NOT_DIRTY = 0, CHILD_DIRTY = 1, CONTENT_DIRTY = 2, NODE_DIRTY = 3;\n\n// Superclass for the various kinds of descriptions. Defines their\n// basic structure and shared methods.\nvar ViewDesc = function ViewDesc(parent, children, dom, contentDOM) {\n this.parent = parent;\n this.children = children;\n this.dom = dom;\n // An expando property on the DOM node provides a link back to its\n // description.\n dom.pmViewDesc = this;\n // This is the node that holds the child views. It may be null for\n // descs that don't have children.\n this.contentDOM = contentDOM;\n this.dirty = NOT_DIRTY;\n};\n\nvar prototypeAccessors = { beforePosition: { configurable: true },size: { configurable: true },border: { configurable: true },posBefore: { configurable: true },posAtStart: { configurable: true },posAfter: { configurable: true },posAtEnd: { configurable: true },contentLost: { configurable: true },domAtom: { configurable: true } };\n\n// Used to check whether a given description corresponds to a\n// widget/mark/node.\nViewDesc.prototype.matchesWidget = function matchesWidget () { return false };\nViewDesc.prototype.matchesMark = function matchesMark () { return false };\nViewDesc.prototype.matchesNode = function matchesNode () { return false };\nViewDesc.prototype.matchesHack = function matchesHack () { return false };\n\nprototypeAccessors.beforePosition.get = function () { return false };\n\n// : () → ?ParseRule\n// When parsing in-editor content (in domchange.js), we allow\n// descriptions to determine the parse rules that should be used to\n// parse them.\nViewDesc.prototype.parseRule = function parseRule () { return null };\n\n// : (dom.Event) → bool\n// Used by the editor's event handler to ignore events that come\n// from certain descs.\nViewDesc.prototype.stopEvent = function stopEvent () { return false };\n\n// The size of the content represented by this desc.\nprototypeAccessors.size.get = function () {\n var size = 0;\n for (var i = 0; i < this.children.length; i++) { size += this.children[i].size; }\n return size\n};\n\n// For block nodes, this represents the space taken up by their\n// start/end tokens.\nprototypeAccessors.border.get = function () { return 0 };\n\nViewDesc.prototype.destroy = function destroy () {\n this.parent = null;\n if (this.dom.pmViewDesc == this) { this.dom.pmViewDesc = null; }\n for (var i = 0; i < this.children.length; i++)\n { this.children[i].destroy(); }\n};\n\nViewDesc.prototype.posBeforeChild = function posBeforeChild (child) {\n for (var i = 0, pos = this.posAtStart; i < this.children.length; i++) {\n var cur = this.children[i];\n if (cur == child) { return pos }\n pos += cur.size;\n }\n};\n\nprototypeAccessors.posBefore.get = function () {\n return this.parent.posBeforeChild(this)\n};\n\nprototypeAccessors.posAtStart.get = function () {\n return this.parent ? this.parent.posBeforeChild(this) + this.border : 0\n};\n\nprototypeAccessors.posAfter.get = function () {\n return this.posBefore + this.size\n};\n\nprototypeAccessors.posAtEnd.get = function () {\n return this.posAtStart + this.size - 2 * this.border\n};\n\n// : (dom.Node, number, ?number) → number\nViewDesc.prototype.localPosFromDOM = function localPosFromDOM (dom, offset, bias) {\n // If the DOM position is in the content, use the child desc after\n // it to figure out a position.\n if (this.contentDOM && this.contentDOM.contains(dom.nodeType == 1 ? dom : dom.parentNode)) {\n if (bias < 0) {\n var domBefore, desc;\n if (dom == this.contentDOM) {\n domBefore = dom.childNodes[offset - 1];\n } else {\n while (dom.parentNode != this.contentDOM) { dom = dom.parentNode; }\n domBefore = dom.previousSibling;\n }\n while (domBefore && !((desc = domBefore.pmViewDesc) && desc.parent == this)) { domBefore = domBefore.previousSibling; }\n return domBefore ? this.posBeforeChild(desc) + desc.size : this.posAtStart\n } else {\n var domAfter, desc$1;\n if (dom == this.contentDOM) {\n domAfter = dom.childNodes[offset];\n } else {\n while (dom.parentNode != this.contentDOM) { dom = dom.parentNode; }\n domAfter = dom.nextSibling;\n }\n while (domAfter && !((desc$1 = domAfter.pmViewDesc) && desc$1.parent == this)) { domAfter = domAfter.nextSibling; }\n return domAfter ? this.posBeforeChild(desc$1) : this.posAtEnd\n }\n }\n // Otherwise, use various heuristics, falling back on the bias\n // parameter, to determine whether to return the position at the\n // start or at the end of this view desc.\n var atEnd;\n if (dom == this.dom && this.contentDOM) {\n atEnd = offset > domIndex(this.contentDOM);\n } else if (this.contentDOM && this.contentDOM != this.dom && this.dom.contains(this.contentDOM)) {\n atEnd = dom.compareDocumentPosition(this.contentDOM) & 2;\n } else if (this.dom.firstChild) {\n if (offset == 0) { for (var search = dom;; search = search.parentNode) {\n if (search == this.dom) { atEnd = false; break }\n if (search.parentNode.firstChild != search) { break }\n } }\n if (atEnd == null && offset == dom.childNodes.length) { for (var search$1 = dom;; search$1 = search$1.parentNode) {\n if (search$1 == this.dom) { atEnd = true; break }\n if (search$1.parentNode.lastChild != search$1) { break }\n } }\n }\n return (atEnd == null ? bias > 0 : atEnd) ? this.posAtEnd : this.posAtStart\n};\n\n// Scan up the dom finding the first desc that is a descendant of\n// this one.\nViewDesc.prototype.nearestDesc = function nearestDesc (dom, onlyNodes) {\n for (var first = true, cur = dom; cur; cur = cur.parentNode) {\n var desc = this.getDesc(cur);\n if (desc && (!onlyNodes || desc.node)) {\n // If dom is outside of this desc's nodeDOM, don't count it.\n if (first && desc.nodeDOM &&\n !(desc.nodeDOM.nodeType == 1 ? desc.nodeDOM.contains(dom.nodeType == 1 ? dom : dom.parentNode) : desc.nodeDOM == dom))\n { first = false; }\n else\n { return desc }\n }\n }\n};\n\nViewDesc.prototype.getDesc = function getDesc (dom) {\n var desc = dom.pmViewDesc;\n for (var cur = desc; cur; cur = cur.parent) { if (cur == this) { return desc } }\n};\n\nViewDesc.prototype.posFromDOM = function posFromDOM (dom, offset, bias) {\n for (var scan = dom; scan; scan = scan.parentNode) {\n var desc = this.getDesc(scan);\n if (desc) { return desc.localPosFromDOM(dom, offset, bias) }\n }\n return -1\n};\n\n// : (number) → ?NodeViewDesc\n// Find the desc for the node after the given pos, if any. (When a\n// parent node overrode rendering, there might not be one.)\nViewDesc.prototype.descAt = function descAt (pos) {\n for (var i = 0, offset = 0; i < this.children.length; i++) {\n var child = this.children[i], end = offset + child.size;\n if (offset == pos && end != offset) {\n while (!child.border && child.children.length) { child = child.children[0]; }\n return child\n }\n if (pos < end) { return child.descAt(pos - offset - child.border) }\n offset = end;\n }\n};\n\n// : (number, number) → {node: dom.Node, offset: number}\nViewDesc.prototype.domFromPos = function domFromPos (pos, side) {\n if (!this.contentDOM) { return {node: this.dom, offset: 0} }\n for (var offset = 0, i = 0, first = true;; i++, first = false) {\n // Skip removed or always-before children\n while (i < this.children.length && (this.children[i].beforePosition ||\n this.children[i].dom.parentNode != this.contentDOM))\n { offset += this.children[i++].size; }\n var child = i == this.children.length ? null : this.children[i];\n if (offset == pos && (side == 0 || !child || !child.size || child.border || (side < 0 && first)) ||\n child && child.domAtom && pos < offset + child.size) { return {\n node: this.contentDOM,\n offset: child ? domIndex(child.dom) : this.contentDOM.childNodes.length\n } }\n if (!child) { throw new Error(\"Invalid position \" + pos) }\n var end = offset + child.size;\n if (!child.domAtom && (side < 0 && !child.border ? end >= pos : end > pos) &&\n (end > pos || i + 1 >= this.children.length || !this.children[i + 1].beforePosition))\n { return child.domFromPos(pos - offset - child.border, side) }\n offset = end;\n }\n};\n\n// Used to find a DOM range in a single parent for a given changed\n// range.\nViewDesc.prototype.parseRange = function parseRange (from, to, base) {\n if ( base === void 0 ) base = 0;\n\n if (this.children.length == 0)\n { return {node: this.contentDOM, from: from, to: to, fromOffset: 0, toOffset: this.contentDOM.childNodes.length} }\n\n var fromOffset = -1, toOffset = -1;\n for (var offset = base, i = 0;; i++) {\n var child = this.children[i], end = offset + child.size;\n if (fromOffset == -1 && from <= end) {\n var childBase = offset + child.border;\n // FIXME maybe descend mark views to parse a narrower range?\n if (from >= childBase && to <= end - child.border && child.node &&\n child.contentDOM && this.contentDOM.contains(child.contentDOM))\n { return child.parseRange(from, to, childBase) }\n\n from = offset;\n for (var j = i; j > 0; j--) {\n var prev = this.children[j - 1];\n if (prev.size && prev.dom.parentNode == this.contentDOM && !prev.emptyChildAt(1)) {\n fromOffset = domIndex(prev.dom) + 1;\n break\n }\n from -= prev.size;\n }\n if (fromOffset == -1) { fromOffset = 0; }\n }\n if (fromOffset > -1 && (end > to || i == this.children.length - 1)) {\n to = end;\n for (var j$1 = i + 1; j$1 < this.children.length; j$1++) {\n var next = this.children[j$1];\n if (next.size && next.dom.parentNode == this.contentDOM && !next.emptyChildAt(-1)) {\n toOffset = domIndex(next.dom);\n break\n }\n to += next.size;\n }\n if (toOffset == -1) { toOffset = this.contentDOM.childNodes.length; }\n break\n }\n offset = end;\n }\n return {node: this.contentDOM, from: from, to: to, fromOffset: fromOffset, toOffset: toOffset}\n};\n\nViewDesc.prototype.emptyChildAt = function emptyChildAt (side) {\n if (this.border || !this.contentDOM || !this.children.length) { return false }\n var child = this.children[side < 0 ? 0 : this.children.length - 1];\n return child.size == 0 || child.emptyChildAt(side)\n};\n\n// : (number) → dom.Node\nViewDesc.prototype.domAfterPos = function domAfterPos (pos) {\n var ref = this.domFromPos(pos, 0);\n var node = ref.node;\n var offset = ref.offset;\n if (node.nodeType != 1 || offset == node.childNodes.length)\n { throw new RangeError(\"No node after pos \" + pos) }\n return node.childNodes[offset]\n};\n\n// : (number, number, dom.Document)\n// View descs are responsible for setting any selection that falls\n// entirely inside of them, so that custom implementations can do\n// custom things with the selection. Note that this falls apart when\n// a selection starts in such a node and ends in another, in which\n// case we just use whatever domFromPos produces as a best effort.\nViewDesc.prototype.setSelection = function setSelection (anchor, head, root, force) {\n // If the selection falls entirely in a child, give it to that child\n var from = Math.min(anchor, head), to = Math.max(anchor, head);\n for (var i = 0, offset = 0; i < this.children.length; i++) {\n var child = this.children[i], end = offset + child.size;\n if (from > offset && to < end)\n { return child.setSelection(anchor - offset - child.border, head - offset - child.border, root, force) }\n offset = end;\n }\n\n var anchorDOM = this.domFromPos(anchor, anchor ? -1 : 1);\n var headDOM = head == anchor ? anchorDOM : this.domFromPos(head, head ? -1 : 1);\n var domSel = root.getSelection();\n\n var brKludge = false;\n // On Firefox, using Selection.collapse to put the cursor after a\n // BR node for some reason doesn't always work (#1073). On Safari,\n // the cursor sometimes inexplicable visually lags behind its\n // reported position in such situations (#1092).\n if ((result.gecko || result.safari) && anchor == head) {\n var node = anchorDOM.node;\n var offset$1 = anchorDOM.offset;\n if (node.nodeType == 3) {\n brKludge = offset$1 && node.nodeValue[offset$1 - 1] == \"\\n\";\n // Issue #1128\n if (brKludge && offset$1 == node.nodeValue.length &&\n node.nextSibling && node.nextSibling.nodeName == \"BR\")\n { anchorDOM = headDOM = {node: node.parentNode, offset: domIndex(node) + 1}; }\n } else {\n var prev = node.childNodes[offset$1 - 1];\n brKludge = prev && (prev.nodeName == \"BR\" || prev.contentEditable == \"false\");\n }\n }\n\n if (!(force || brKludge && result.safari) &&\n isEquivalentPosition(anchorDOM.node, anchorDOM.offset, domSel.anchorNode, domSel.anchorOffset) &&\n isEquivalentPosition(headDOM.node, headDOM.offset, domSel.focusNode, domSel.focusOffset))\n { return }\n\n // Selection.extend can be used to create an 'inverted' selection\n // (one where the focus is before the anchor), but not all\n // browsers support it yet.\n var domSelExtended = false;\n if ((domSel.extend || anchor == head) && !brKludge) {\n domSel.collapse(anchorDOM.node, anchorDOM.offset);\n try {\n if (anchor != head) { domSel.extend(headDOM.node, headDOM.offset); }\n domSelExtended = true;\n } catch (err) {\n // In some cases with Chrome the selection is empty after calling\n // collapse, even when it should be valid. This appears to be a bug, but\n // it is difficult to isolate. If this happens fallback to the old path\n // without using extend.\n if (!(err instanceof DOMException)) { throw err }\n // declare global: DOMException\n }\n }\n if (!domSelExtended) {\n if (anchor > head) { var tmp = anchorDOM; anchorDOM = headDOM; headDOM = tmp; }\n var range = document.createRange();\n range.setEnd(headDOM.node, headDOM.offset);\n range.setStart(anchorDOM.node, anchorDOM.offset);\n domSel.removeAllRanges();\n domSel.addRange(range);\n }\n};\n\n// : (dom.MutationRecord) → bool\nViewDesc.prototype.ignoreMutation = function ignoreMutation (mutation) {\n return !this.contentDOM && mutation.type != \"selection\"\n};\n\nprototypeAccessors.contentLost.get = function () {\n return this.contentDOM && this.contentDOM != this.dom && !this.dom.contains(this.contentDOM)\n};\n\n// Remove a subtree of the element tree that has been touched\n// by a DOM change, so that the next update will redraw it.\nViewDesc.prototype.markDirty = function markDirty (from, to) {\n for (var offset = 0, i = 0; i < this.children.length; i++) {\n var child = this.children[i], end = offset + child.size;\n if (offset == end ? from <= end && to >= offset : from < end && to > offset) {\n var startInside = offset + child.border, endInside = end - child.border;\n if (from >= startInside && to <= endInside) {\n this.dirty = from == offset || to == end ? CONTENT_DIRTY : CHILD_DIRTY;\n if (from == startInside && to == endInside &&\n (child.contentLost || child.dom.parentNode != this.contentDOM)) { child.dirty = NODE_DIRTY; }\n else { child.markDirty(from - startInside, to - startInside); }\n return\n } else {\n child.dirty = NODE_DIRTY;\n }\n }\n offset = end;\n }\n this.dirty = CONTENT_DIRTY;\n};\n\nViewDesc.prototype.markParentsDirty = function markParentsDirty () {\n var level = 1;\n for (var node = this.parent; node; node = node.parent, level++) {\n var dirty = level == 1 ? CONTENT_DIRTY : CHILD_DIRTY;\n if (node.dirty < dirty) { node.dirty = dirty; }\n }\n};\n\nprototypeAccessors.domAtom.get = function () { return false };\n\nObject.defineProperties( ViewDesc.prototype, prototypeAccessors );\n\n// Reused array to avoid allocating fresh arrays for things that will\n// stay empty anyway.\nvar nothing = [];\n\n// A widget desc represents a widget decoration, which is a DOM node\n// drawn between the document nodes.\nvar WidgetViewDesc = /*@__PURE__*/(function (ViewDesc) {\n function WidgetViewDesc(parent, widget, view, pos) {\n var self, dom = widget.type.toDOM;\n if (typeof dom == \"function\") { dom = dom(view, function () {\n if (!self) { return pos }\n if (self.parent) { return self.parent.posBeforeChild(self) }\n }); }\n if (!widget.type.spec.raw) {\n if (dom.nodeType != 1) {\n var wrap = document.createElement(\"span\");\n wrap.appendChild(dom);\n dom = wrap;\n }\n dom.contentEditable = false;\n dom.classList.add(\"ProseMirror-widget\");\n }\n ViewDesc.call(this, parent, nothing, dom, null);\n this.widget = widget;\n self = this;\n }\n\n if ( ViewDesc ) WidgetViewDesc.__proto__ = ViewDesc;\n WidgetViewDesc.prototype = Object.create( ViewDesc && ViewDesc.prototype );\n WidgetViewDesc.prototype.constructor = WidgetViewDesc;\n\n var prototypeAccessors$1 = { beforePosition: { configurable: true },domAtom: { configurable: true } };\n\n prototypeAccessors$1.beforePosition.get = function () {\n return this.widget.type.side < 0\n };\n\n WidgetViewDesc.prototype.matchesWidget = function matchesWidget (widget) {\n return this.dirty == NOT_DIRTY && widget.type.eq(this.widget.type)\n };\n\n WidgetViewDesc.prototype.parseRule = function parseRule () { return {ignore: true} };\n\n WidgetViewDesc.prototype.stopEvent = function stopEvent (event) {\n var stop = this.widget.spec.stopEvent;\n return stop ? stop(event) : false\n };\n\n WidgetViewDesc.prototype.ignoreMutation = function ignoreMutation (mutation) {\n return mutation.type != \"selection\" || this.widget.spec.ignoreSelection\n };\n\n prototypeAccessors$1.domAtom.get = function () { return true };\n\n Object.defineProperties( WidgetViewDesc.prototype, prototypeAccessors$1 );\n\n return WidgetViewDesc;\n}(ViewDesc));\n\nvar CompositionViewDesc = /*@__PURE__*/(function (ViewDesc) {\n function CompositionViewDesc(parent, dom, textDOM, text) {\n ViewDesc.call(this, parent, nothing, dom, null);\n this.textDOM = textDOM;\n this.text = text;\n }\n\n if ( ViewDesc ) CompositionViewDesc.__proto__ = ViewDesc;\n CompositionViewDesc.prototype = Object.create( ViewDesc && ViewDesc.prototype );\n CompositionViewDesc.prototype.constructor = CompositionViewDesc;\n\n var prototypeAccessors$2 = { size: { configurable: true } };\n\n prototypeAccessors$2.size.get = function () { return this.text.length };\n\n CompositionViewDesc.prototype.localPosFromDOM = function localPosFromDOM (dom, offset) {\n if (dom != this.textDOM) { return this.posAtStart + (offset ? this.size : 0) }\n return this.posAtStart + offset\n };\n\n CompositionViewDesc.prototype.domFromPos = function domFromPos (pos) {\n return {node: this.textDOM, offset: pos}\n };\n\n CompositionViewDesc.prototype.ignoreMutation = function ignoreMutation (mut) {\n return mut.type === 'characterData' && mut.target.nodeValue == mut.oldValue\n };\n\n Object.defineProperties( CompositionViewDesc.prototype, prototypeAccessors$2 );\n\n return CompositionViewDesc;\n}(ViewDesc));\n\n// A mark desc represents a mark. May have multiple children,\n// depending on how the mark is split. Note that marks are drawn using\n// a fixed nesting order, for simplicity and predictability, so in\n// some cases they will be split more often than would appear\n// necessary.\nvar MarkViewDesc = /*@__PURE__*/(function (ViewDesc) {\n function MarkViewDesc(parent, mark, dom, contentDOM) {\n ViewDesc.call(this, parent, [], dom, contentDOM);\n this.mark = mark;\n }\n\n if ( ViewDesc ) MarkViewDesc.__proto__ = ViewDesc;\n MarkViewDesc.prototype = Object.create( ViewDesc && ViewDesc.prototype );\n MarkViewDesc.prototype.constructor = MarkViewDesc;\n\n MarkViewDesc.create = function create (parent, mark, inline, view) {\n var custom = view.nodeViews[mark.type.name];\n var spec = custom && custom(mark, view, inline);\n if (!spec || !spec.dom)\n { spec = DOMSerializer.renderSpec(document, mark.type.spec.toDOM(mark, inline)); }\n return new MarkViewDesc(parent, mark, spec.dom, spec.contentDOM || spec.dom)\n };\n\n MarkViewDesc.prototype.parseRule = function parseRule () { return {mark: this.mark.type.name, attrs: this.mark.attrs, contentElement: this.contentDOM} };\n\n MarkViewDesc.prototype.matchesMark = function matchesMark (mark) { return this.dirty != NODE_DIRTY && this.mark.eq(mark) };\n\n MarkViewDesc.prototype.markDirty = function markDirty (from, to) {\n ViewDesc.prototype.markDirty.call(this, from, to);\n // Move dirty info to nearest node view\n if (this.dirty != NOT_DIRTY) {\n var parent = this.parent;\n while (!parent.node) { parent = parent.parent; }\n if (parent.dirty < this.dirty) { parent.dirty = this.dirty; }\n this.dirty = NOT_DIRTY;\n }\n };\n\n MarkViewDesc.prototype.slice = function slice (from, to, view) {\n var copy = MarkViewDesc.create(this.parent, this.mark, true, view);\n var nodes = this.children, size = this.size;\n if (to < size) { nodes = replaceNodes(nodes, to, size, view); }\n if (from > 0) { nodes = replaceNodes(nodes, 0, from, view); }\n for (var i = 0; i < nodes.length; i++) { nodes[i].parent = copy; }\n copy.children = nodes;\n return copy\n };\n\n return MarkViewDesc;\n}(ViewDesc));\n\n// Node view descs are the main, most common type of view desc, and\n// correspond to an actual node in the document. Unlike mark descs,\n// they populate their child array themselves.\nvar NodeViewDesc = /*@__PURE__*/(function (ViewDesc) {\n function NodeViewDesc(parent, node, outerDeco, innerDeco, dom, contentDOM, nodeDOM, view, pos) {\n ViewDesc.call(this, parent, node.isLeaf ? nothing : [], dom, contentDOM);\n this.nodeDOM = nodeDOM;\n this.node = node;\n this.outerDeco = outerDeco;\n this.innerDeco = innerDeco;\n if (contentDOM) { this.updateChildren(view, pos); }\n }\n\n if ( ViewDesc ) NodeViewDesc.__proto__ = ViewDesc;\n NodeViewDesc.prototype = Object.create( ViewDesc && ViewDesc.prototype );\n NodeViewDesc.prototype.constructor = NodeViewDesc;\n\n var prototypeAccessors$3 = { size: { configurable: true },border: { configurable: true },domAtom: { configurable: true } };\n\n // By default, a node is rendered using the `toDOM` method from the\n // node type spec. But client code can use the `nodeViews` spec to\n // supply a custom node view, which can influence various aspects of\n // the way the node works.\n //\n // (Using subclassing for this was intentionally decided against,\n // since it'd require exposing a whole slew of finnicky\n // implementation details to the user code that they probably will\n // never need.)\n NodeViewDesc.create = function create (parent, node, outerDeco, innerDeco, view, pos) {\n var assign;\n\n var custom = view.nodeViews[node.type.name], descObj;\n var spec = custom && custom(node, view, function () {\n // (This is a function that allows the custom view to find its\n // own position)\n if (!descObj) { return pos }\n if (descObj.parent) { return descObj.parent.posBeforeChild(descObj) }\n }, outerDeco, innerDeco);\n\n var dom = spec && spec.dom, contentDOM = spec && spec.contentDOM;\n if (node.isText) {\n if (!dom) { dom = document.createTextNode(node.text); }\n else if (dom.nodeType != 3) { throw new RangeError(\"Text must be rendered as a DOM text node\") }\n } else if (!dom) {\n((assign = DOMSerializer.renderSpec(document, node.type.spec.toDOM(node)), dom = assign.dom, contentDOM = assign.contentDOM));\n }\n if (!contentDOM && !node.isText && dom.nodeName != \"BR\") { // Chrome gets confused by \n if (!dom.hasAttribute(\"contenteditable\")) { dom.contentEditable = false; }\n if (node.type.spec.draggable) { dom.draggable = true; }\n }\n\n var nodeDOM = dom;\n dom = applyOuterDeco(dom, outerDeco, node);\n\n if (spec)\n { return descObj = new CustomNodeViewDesc(parent, node, outerDeco, innerDeco, dom, contentDOM, nodeDOM,\n spec, view, pos + 1) }\n else if (node.isText)\n { return new TextViewDesc(parent, node, outerDeco, innerDeco, dom, nodeDOM, view) }\n else\n { return new NodeViewDesc(parent, node, outerDeco, innerDeco, dom, contentDOM, nodeDOM, view, pos + 1) }\n };\n\n NodeViewDesc.prototype.parseRule = function parseRule () {\n var this$1 = this;\n\n // Experimental kludge to allow opt-in re-parsing of nodes\n if (this.node.type.spec.reparseInView) { return null }\n // FIXME the assumption that this can always return the current\n // attrs means that if the user somehow manages to change the\n // attrs in the dom, that won't be picked up. Not entirely sure\n // whether this is a problem\n var rule = {node: this.node.type.name, attrs: this.node.attrs};\n if (this.node.type.spec.code) { rule.preserveWhitespace = \"full\"; }\n if (this.contentDOM && !this.contentLost) { rule.contentElement = this.contentDOM; }\n else { rule.getContent = function () { return this$1.contentDOM ? Fragment.empty : this$1.node.content; }; }\n return rule\n };\n\n NodeViewDesc.prototype.matchesNode = function matchesNode (node, outerDeco, innerDeco) {\n return this.dirty == NOT_DIRTY && node.eq(this.node) &&\n sameOuterDeco(outerDeco, this.outerDeco) && innerDeco.eq(this.innerDeco)\n };\n\n prototypeAccessors$3.size.get = function () { return this.node.nodeSize };\n\n prototypeAccessors$3.border.get = function () { return this.node.isLeaf ? 0 : 1 };\n\n // Syncs `this.children` to match `this.node.content` and the local\n // decorations, possibly introducing nesting for marks. Then, in a\n // separate step, syncs the DOM inside `this.contentDOM` to\n // `this.children`.\n NodeViewDesc.prototype.updateChildren = function updateChildren (view, pos) {\n var this$1 = this;\n\n var inline = this.node.inlineContent, off = pos;\n var composition = inline && view.composing && this.localCompositionNode(view, pos);\n var updater = new ViewTreeUpdater(this, composition && composition.node);\n iterDeco(this.node, this.innerDeco, function (widget, i, insideNode) {\n if (widget.spec.marks)\n { updater.syncToMarks(widget.spec.marks, inline, view); }\n else if (widget.type.side >= 0 && !insideNode)\n { updater.syncToMarks(i == this$1.node.childCount ? Mark.none : this$1.node.child(i).marks, inline, view); }\n // If the next node is a desc matching this widget, reuse it,\n // otherwise insert the widget as a new view desc.\n updater.placeWidget(widget, view, off);\n }, function (child, outerDeco, innerDeco, i) {\n // Make sure the wrapping mark descs match the node's marks.\n updater.syncToMarks(child.marks, inline, view);\n // Either find an existing desc that exactly matches this node,\n // and drop the descs before it.\n updater.findNodeMatch(child, outerDeco, innerDeco, i) ||\n // Or try updating the next desc to reflect this node.\n updater.updateNextNode(child, outerDeco, innerDeco, view, i) ||\n // Or just add it as a new desc.\n updater.addNode(child, outerDeco, innerDeco, view, off);\n off += child.nodeSize;\n });\n // Drop all remaining descs after the current position.\n updater.syncToMarks(nothing, inline, view);\n if (this.node.isTextblock) { updater.addTextblockHacks(); }\n updater.destroyRest();\n\n // Sync the DOM if anything changed\n if (updater.changed || this.dirty == CONTENT_DIRTY) {\n // May have to protect focused DOM from being changed if a composition is active\n if (composition) { this.protectLocalComposition(view, composition); }\n renderDescs(this.contentDOM, this.children, view);\n if (result.ios) { iosHacks(this.dom); }\n }\n };\n\n NodeViewDesc.prototype.localCompositionNode = function localCompositionNode (view, pos) {\n // Only do something if both the selection and a focused text node\n // are inside of this node, and the node isn't already part of a\n // view that's a child of this view\n var ref = view.state.selection;\n var from = ref.from;\n var to = ref.to;\n if (!(view.state.selection instanceof TextSelection) || from < pos || to > pos + this.node.content.size) { return }\n var sel = view.root.getSelection();\n var textNode = nearbyTextNode(sel.focusNode, sel.focusOffset);\n if (!textNode || !this.dom.contains(textNode.parentNode)) { return }\n\n // Find the text in the focused node in the node, stop if it's not\n // there (may have been modified through other means, in which\n // case it should overwritten)\n var text = textNode.nodeValue;\n var textPos = findTextInFragment(this.node.content, text, from - pos, to - pos);\n\n return textPos < 0 ? null : {node: textNode, pos: textPos, text: text}\n };\n\n NodeViewDesc.prototype.protectLocalComposition = function protectLocalComposition (view, ref) {\n var node = ref.node;\n var pos = ref.pos;\n var text = ref.text;\n\n // The node is already part of a local view desc, leave it there\n if (this.getDesc(node)) { return }\n\n // Create a composition view for the orphaned nodes\n var topNode = node;\n for (;; topNode = topNode.parentNode) {\n if (topNode.parentNode == this.contentDOM) { break }\n while (topNode.previousSibling) { topNode.parentNode.removeChild(topNode.previousSibling); }\n while (topNode.nextSibling) { topNode.parentNode.removeChild(topNode.nextSibling); }\n if (topNode.pmViewDesc) { topNode.pmViewDesc = null; }\n }\n var desc = new CompositionViewDesc(this, topNode, node, text);\n view.compositionNodes.push(desc);\n\n // Patch up this.children to contain the composition view\n this.children = replaceNodes(this.children, pos, pos + text.length, view, desc);\n };\n\n // : (Node, [Decoration], DecorationSource, EditorView) → bool\n // If this desc be updated to match the given node decoration,\n // do so and return true.\n NodeViewDesc.prototype.update = function update (node, outerDeco, innerDeco, view) {\n if (this.dirty == NODE_DIRTY ||\n !node.sameMarkup(this.node)) { return false }\n this.updateInner(node, outerDeco, innerDeco, view);\n return true\n };\n\n NodeViewDesc.prototype.updateInner = function updateInner (node, outerDeco, innerDeco, view) {\n this.updateOuterDeco(outerDeco);\n this.node = node;\n this.innerDeco = innerDeco;\n if (this.contentDOM) { this.updateChildren(view, this.posAtStart); }\n this.dirty = NOT_DIRTY;\n };\n\n NodeViewDesc.prototype.updateOuterDeco = function updateOuterDeco (outerDeco) {\n if (sameOuterDeco(outerDeco, this.outerDeco)) { return }\n var needsWrap = this.nodeDOM.nodeType != 1;\n var oldDOM = this.dom;\n this.dom = patchOuterDeco(this.dom, this.nodeDOM,\n computeOuterDeco(this.outerDeco, this.node, needsWrap),\n computeOuterDeco(outerDeco, this.node, needsWrap));\n if (this.dom != oldDOM) {\n oldDOM.pmViewDesc = null;\n this.dom.pmViewDesc = this;\n }\n this.outerDeco = outerDeco;\n };\n\n // Mark this node as being the selected node.\n NodeViewDesc.prototype.selectNode = function selectNode () {\n this.nodeDOM.classList.add(\"ProseMirror-selectednode\");\n if (this.contentDOM || !this.node.type.spec.draggable) { this.dom.draggable = true; }\n };\n\n // Remove selected node marking from this node.\n NodeViewDesc.prototype.deselectNode = function deselectNode () {\n this.nodeDOM.classList.remove(\"ProseMirror-selectednode\");\n if (this.contentDOM || !this.node.type.spec.draggable) { this.dom.removeAttribute(\"draggable\"); }\n };\n\n prototypeAccessors$3.domAtom.get = function () { return this.node.isAtom };\n\n Object.defineProperties( NodeViewDesc.prototype, prototypeAccessors$3 );\n\n return NodeViewDesc;\n}(ViewDesc));\n\n// Create a view desc for the top-level document node, to be exported\n// and used by the view class.\nfunction docViewDesc(doc, outerDeco, innerDeco, dom, view) {\n applyOuterDeco(dom, outerDeco, doc);\n return new NodeViewDesc(null, doc, outerDeco, innerDeco, dom, dom, dom, view, 0)\n}\n\nvar TextViewDesc = /*@__PURE__*/(function (NodeViewDesc) {\n function TextViewDesc(parent, node, outerDeco, innerDeco, dom, nodeDOM, view) {\n NodeViewDesc.call(this, parent, node, outerDeco, innerDeco, dom, null, nodeDOM, view);\n }\n\n if ( NodeViewDesc ) TextViewDesc.__proto__ = NodeViewDesc;\n TextViewDesc.prototype = Object.create( NodeViewDesc && NodeViewDesc.prototype );\n TextViewDesc.prototype.constructor = TextViewDesc;\n\n var prototypeAccessors$4 = { domAtom: { configurable: true } };\n\n TextViewDesc.prototype.parseRule = function parseRule () {\n var skip = this.nodeDOM.parentNode;\n while (skip && skip != this.dom && !skip.pmIsDeco) { skip = skip.parentNode; }\n return {skip: skip || true}\n };\n\n TextViewDesc.prototype.update = function update (node, outerDeco, _, view) {\n if (this.dirty == NODE_DIRTY || (this.dirty != NOT_DIRTY && !this.inParent()) ||\n !node.sameMarkup(this.node)) { return false }\n this.updateOuterDeco(outerDeco);\n if ((this.dirty != NOT_DIRTY || node.text != this.node.text) && node.text != this.nodeDOM.nodeValue) {\n this.nodeDOM.nodeValue = node.text;\n if (view.trackWrites == this.nodeDOM) { view.trackWrites = null; }\n }\n this.node = node;\n this.dirty = NOT_DIRTY;\n return true\n };\n\n TextViewDesc.prototype.inParent = function inParent () {\n var parentDOM = this.parent.contentDOM;\n for (var n = this.nodeDOM; n; n = n.parentNode) { if (n == parentDOM) { return true } }\n return false\n };\n\n TextViewDesc.prototype.domFromPos = function domFromPos (pos) {\n return {node: this.nodeDOM, offset: pos}\n };\n\n TextViewDesc.prototype.localPosFromDOM = function localPosFromDOM (dom, offset, bias) {\n if (dom == this.nodeDOM) { return this.posAtStart + Math.min(offset, this.node.text.length) }\n return NodeViewDesc.prototype.localPosFromDOM.call(this, dom, offset, bias)\n };\n\n TextViewDesc.prototype.ignoreMutation = function ignoreMutation (mutation) {\n return mutation.type != \"characterData\" && mutation.type != \"selection\"\n };\n\n TextViewDesc.prototype.slice = function slice (from, to, view) {\n var node = this.node.cut(from, to), dom = document.createTextNode(node.text);\n return new TextViewDesc(this.parent, node, this.outerDeco, this.innerDeco, dom, dom, view)\n };\n\n prototypeAccessors$4.domAtom.get = function () { return false };\n\n Object.defineProperties( TextViewDesc.prototype, prototypeAccessors$4 );\n\n return TextViewDesc;\n}(NodeViewDesc));\n\n// A dummy desc used to tag trailing BR or span nodes created to work\n// around contentEditable terribleness.\nvar BRHackViewDesc = /*@__PURE__*/(function (ViewDesc) {\n function BRHackViewDesc () {\n ViewDesc.apply(this, arguments);\n }\n\n if ( ViewDesc ) BRHackViewDesc.__proto__ = ViewDesc;\n BRHackViewDesc.prototype = Object.create( ViewDesc && ViewDesc.prototype );\n BRHackViewDesc.prototype.constructor = BRHackViewDesc;\n\n var prototypeAccessors$5 = { domAtom: { configurable: true } };\n\n BRHackViewDesc.prototype.parseRule = function parseRule () { return {ignore: true} };\n BRHackViewDesc.prototype.matchesHack = function matchesHack () { return this.dirty == NOT_DIRTY };\n prototypeAccessors$5.domAtom.get = function () { return true };\n\n Object.defineProperties( BRHackViewDesc.prototype, prototypeAccessors$5 );\n\n return BRHackViewDesc;\n}(ViewDesc));\n\n// A separate subclass is used for customized node views, so that the\n// extra checks only have to be made for nodes that are actually\n// customized.\nvar CustomNodeViewDesc = /*@__PURE__*/(function (NodeViewDesc) {\n function CustomNodeViewDesc(parent, node, outerDeco, innerDeco, dom, contentDOM, nodeDOM, spec, view, pos) {\n NodeViewDesc.call(this, parent, node, outerDeco, innerDeco, dom, contentDOM, nodeDOM, view, pos);\n this.spec = spec;\n }\n\n if ( NodeViewDesc ) CustomNodeViewDesc.__proto__ = NodeViewDesc;\n CustomNodeViewDesc.prototype = Object.create( NodeViewDesc && NodeViewDesc.prototype );\n CustomNodeViewDesc.prototype.constructor = CustomNodeViewDesc;\n\n // A custom `update` method gets to decide whether the update goes\n // through. If it does, and there's a `contentDOM` node, our logic\n // updates the children.\n CustomNodeViewDesc.prototype.update = function update (node, outerDeco, innerDeco, view) {\n if (this.dirty == NODE_DIRTY) { return false }\n if (this.spec.update) {\n var result = this.spec.update(node, outerDeco, innerDeco);\n if (result) { this.updateInner(node, outerDeco, innerDeco, view); }\n return result\n } else if (!this.contentDOM && !node.isLeaf) {\n return false\n } else {\n return NodeViewDesc.prototype.update.call(this, node, outerDeco, innerDeco, view)\n }\n };\n\n CustomNodeViewDesc.prototype.selectNode = function selectNode () {\n this.spec.selectNode ? this.spec.selectNode() : NodeViewDesc.prototype.selectNode.call(this);\n };\n\n CustomNodeViewDesc.prototype.deselectNode = function deselectNode () {\n this.spec.deselectNode ? this.spec.deselectNode() : NodeViewDesc.prototype.deselectNode.call(this);\n };\n\n CustomNodeViewDesc.prototype.setSelection = function setSelection (anchor, head, root, force) {\n this.spec.setSelection ? this.spec.setSelection(anchor, head, root)\n : NodeViewDesc.prototype.setSelection.call(this, anchor, head, root, force);\n };\n\n CustomNodeViewDesc.prototype.destroy = function destroy () {\n if (this.spec.destroy) { this.spec.destroy(); }\n NodeViewDesc.prototype.destroy.call(this);\n };\n\n CustomNodeViewDesc.prototype.stopEvent = function stopEvent (event) {\n return this.spec.stopEvent ? this.spec.stopEvent(event) : false\n };\n\n CustomNodeViewDesc.prototype.ignoreMutation = function ignoreMutation (mutation) {\n return this.spec.ignoreMutation ? this.spec.ignoreMutation(mutation) : NodeViewDesc.prototype.ignoreMutation.call(this, mutation)\n };\n\n return CustomNodeViewDesc;\n}(NodeViewDesc));\n\n// : (dom.Node, [ViewDesc])\n// Sync the content of the given DOM node with the nodes associated\n// with the given array of view descs, recursing into mark descs\n// because this should sync the subtree for a whole node at a time.\nfunction renderDescs(parentDOM, descs, view) {\n var dom = parentDOM.firstChild, written = false;\n for (var i = 0; i < descs.length; i++) {\n var desc = descs[i], childDOM = desc.dom;\n if (childDOM.parentNode == parentDOM) {\n while (childDOM != dom) { dom = rm(dom); written = true; }\n dom = dom.nextSibling;\n } else {\n written = true;\n parentDOM.insertBefore(childDOM, dom);\n }\n if (desc instanceof MarkViewDesc) {\n var pos = dom ? dom.previousSibling : parentDOM.lastChild;\n renderDescs(desc.contentDOM, desc.children, view);\n dom = pos ? pos.nextSibling : parentDOM.firstChild;\n }\n }\n while (dom) { dom = rm(dom); written = true; }\n if (written && view.trackWrites == parentDOM) { view.trackWrites = null; }\n}\n\nfunction OuterDecoLevel(nodeName) {\n if (nodeName) { this.nodeName = nodeName; }\n}\nOuterDecoLevel.prototype = Object.create(null);\n\nvar noDeco = [new OuterDecoLevel];\n\nfunction computeOuterDeco(outerDeco, node, needsWrap) {\n if (outerDeco.length == 0) { return noDeco }\n\n var top = needsWrap ? noDeco[0] : new OuterDecoLevel, result = [top];\n\n for (var i = 0; i < outerDeco.length; i++) {\n var attrs = outerDeco[i].type.attrs;\n if (!attrs) { continue }\n if (attrs.nodeName)\n { result.push(top = new OuterDecoLevel(attrs.nodeName)); }\n\n for (var name in attrs) {\n var val = attrs[name];\n if (val == null) { continue }\n if (needsWrap && result.length == 1)\n { result.push(top = new OuterDecoLevel(node.isInline ? \"span\" : \"div\")); }\n if (name == \"class\") { top.class = (top.class ? top.class + \" \" : \"\") + val; }\n else if (name == \"style\") { top.style = (top.style ? top.style + \";\" : \"\") + val; }\n else if (name != \"nodeName\") { top[name] = val; }\n }\n }\n\n return result\n}\n\nfunction patchOuterDeco(outerDOM, nodeDOM, prevComputed, curComputed) {\n // Shortcut for trivial case\n if (prevComputed == noDeco && curComputed == noDeco) { return nodeDOM }\n\n var curDOM = nodeDOM;\n for (var i = 0; i < curComputed.length; i++) {\n var deco = curComputed[i], prev = prevComputed[i];\n if (i) {\n var parent = (void 0);\n if (prev && prev.nodeName == deco.nodeName && curDOM != outerDOM &&\n (parent = curDOM.parentNode) && parent.tagName.toLowerCase() == deco.nodeName) {\n curDOM = parent;\n } else {\n parent = document.createElement(deco.nodeName);\n parent.pmIsDeco = true;\n parent.appendChild(curDOM);\n prev = noDeco[0];\n curDOM = parent;\n }\n }\n patchAttributes(curDOM, prev || noDeco[0], deco);\n }\n return curDOM\n}\n\nfunction patchAttributes(dom, prev, cur) {\n for (var name in prev)\n { if (name != \"class\" && name != \"style\" && name != \"nodeName\" && !(name in cur))\n { dom.removeAttribute(name); } }\n for (var name$1 in cur)\n { if (name$1 != \"class\" && name$1 != \"style\" && name$1 != \"nodeName\" && cur[name$1] != prev[name$1])\n { dom.setAttribute(name$1, cur[name$1]); } }\n if (prev.class != cur.class) {\n var prevList = prev.class ? prev.class.split(\" \") : nothing;\n var curList = cur.class ? cur.class.split(\" \") : nothing;\n for (var i = 0; i < prevList.length; i++) { if (curList.indexOf(prevList[i]) == -1)\n { dom.classList.remove(prevList[i]); } }\n for (var i$1 = 0; i$1 < curList.length; i$1++) { if (prevList.indexOf(curList[i$1]) == -1)\n { dom.classList.add(curList[i$1]); } }\n }\n if (prev.style != cur.style) {\n if (prev.style) {\n var prop = /\\s*([\\w\\-\\xa1-\\uffff]+)\\s*:(?:\"(?:\\\\.|[^\"])*\"|'(?:\\\\.|[^'])*'|\\(.*?\\)|[^;])*/g, m;\n while (m = prop.exec(prev.style))\n { dom.style.removeProperty(m[1]); }\n }\n if (cur.style)\n { dom.style.cssText += cur.style; }\n }\n}\n\nfunction applyOuterDeco(dom, deco, node) {\n return patchOuterDeco(dom, dom, noDeco, computeOuterDeco(deco, node, dom.nodeType != 1))\n}\n\n// : ([Decoration], [Decoration]) → bool\nfunction sameOuterDeco(a, b) {\n if (a.length != b.length) { return false }\n for (var i = 0; i < a.length; i++) { if (!a[i].type.eq(b[i].type)) { return false } }\n return true\n}\n\n// Remove a DOM node and return its next sibling.\nfunction rm(dom) {\n var next = dom.nextSibling;\n dom.parentNode.removeChild(dom);\n return next\n}\n\n// Helper class for incrementally updating a tree of mark descs and\n// the widget and node descs inside of them.\nvar ViewTreeUpdater = function ViewTreeUpdater(top, lockedNode) {\n this.top = top;\n this.lock = lockedNode;\n // Index into `this.top`'s child array, represents the current\n // update position.\n this.index = 0;\n // When entering a mark, the current top and index are pushed\n // onto this.\n this.stack = [];\n // Tracks whether anything was changed\n this.changed = false;\n\n var pre = preMatch(top.node.content, top.children);\n this.preMatched = pre.nodes;\n this.preMatchOffset = pre.offset;\n};\n\nViewTreeUpdater.prototype.getPreMatch = function getPreMatch (index) {\n return index >= this.preMatchOffset ? this.preMatched[index - this.preMatchOffset] : null\n};\n\n// Destroy and remove the children between the given indices in\n// `this.top`.\nViewTreeUpdater.prototype.destroyBetween = function destroyBetween (start, end) {\n if (start == end) { return }\n for (var i = start; i < end; i++) { this.top.children[i].destroy(); }\n this.top.children.splice(start, end - start);\n this.changed = true;\n};\n\n// Destroy all remaining children in `this.top`.\nViewTreeUpdater.prototype.destroyRest = function destroyRest () {\n this.destroyBetween(this.index, this.top.children.length);\n};\n\n// : ([Mark], EditorView)\n// Sync the current stack of mark descs with the given array of\n// marks, reusing existing mark descs when possible.\nViewTreeUpdater.prototype.syncToMarks = function syncToMarks (marks, inline, view) {\n var keep = 0, depth = this.stack.length >> 1;\n var maxKeep = Math.min(depth, marks.length);\n while (keep < maxKeep &&\n (keep == depth - 1 ? this.top : this.stack[(keep + 1) << 1]).matchesMark(marks[keep]) && marks[keep].type.spec.spanning !== false)\n { keep++; }\n\n while (keep < depth) {\n this.destroyRest();\n this.top.dirty = NOT_DIRTY;\n this.index = this.stack.pop();\n this.top = this.stack.pop();\n depth--;\n }\n while (depth < marks.length) {\n this.stack.push(this.top, this.index + 1);\n var found = -1;\n for (var i = this.index; i < Math.min(this.index + 3, this.top.children.length); i++) {\n if (this.top.children[i].matchesMark(marks[depth])) { found = i; break }\n }\n if (found > -1) {\n if (found > this.index) {\n this.changed = true;\n this.destroyBetween(this.index, found);\n }\n this.top = this.top.children[this.index];\n } else {\n var markDesc = MarkViewDesc.create(this.top, marks[depth], inline, view);\n this.top.children.splice(this.index, 0, markDesc);\n this.top = markDesc;\n this.changed = true;\n }\n this.index = 0;\n depth++;\n }\n};\n\n// : (Node, [Decoration], DecorationSource) → bool\n// Try to find a node desc matching the given data. Skip over it and\n// return true when successful.\nViewTreeUpdater.prototype.findNodeMatch = function findNodeMatch (node, outerDeco, innerDeco, index) {\n var found = -1, preMatch = index < 0 ? undefined : this.getPreMatch(index), children = this.top.children;\n if (preMatch && preMatch.matchesNode(node, outerDeco, innerDeco)) {\n found = children.indexOf(preMatch);\n } else {\n for (var i = this.index, e = Math.min(children.length, i + 5); i < e; i++) {\n var child = children[i];\n if (child.matchesNode(node, outerDeco, innerDeco) && this.preMatched.indexOf(child) < 0) {\n found = i;\n break\n }\n }\n }\n if (found < 0) { return false }\n this.destroyBetween(this.index, found);\n this.index++;\n return true\n};\n\n// : (Node, [Decoration], DecorationSource, EditorView, Fragment, number) → bool\n// Try to update the next node, if any, to the given data. Checks\n// pre-matches to avoid overwriting nodes that could still be used.\nViewTreeUpdater.prototype.updateNextNode = function updateNextNode (node, outerDeco, innerDeco, view, index) {\n for (var i = this.index; i < this.top.children.length; i++) {\n var next = this.top.children[i];\n if (next instanceof NodeViewDesc) {\n var preMatch = this.preMatched.indexOf(next);\n if (preMatch > -1 && preMatch + this.preMatchOffset != index) { return false }\n var nextDOM = next.dom;\n\n // Can't update if nextDOM is or contains this.lock, except if\n // it's a text node whose content already matches the new text\n // and whose decorations match the new ones.\n var locked = this.lock && (nextDOM == this.lock || nextDOM.nodeType == 1 && nextDOM.contains(this.lock.parentNode)) &&\n !(node.isText && next.node && next.node.isText && next.nodeDOM.nodeValue == node.text &&\n next.dirty != NODE_DIRTY && sameOuterDeco(outerDeco, next.outerDeco));\n if (!locked && next.update(node, outerDeco, innerDeco, view)) {\n this.destroyBetween(this.index, i);\n if (next.dom != nextDOM) { this.changed = true; }\n this.index++;\n return true\n }\n break\n }\n }\n return false\n};\n\n// : (Node, [Decoration], DecorationSource, EditorView)\n// Insert the node as a newly created node desc.\nViewTreeUpdater.prototype.addNode = function addNode (node, outerDeco, innerDeco, view, pos) {\n this.top.children.splice(this.index++, 0, NodeViewDesc.create(this.top, node, outerDeco, innerDeco, view, pos));\n this.changed = true;\n};\n\nViewTreeUpdater.prototype.placeWidget = function placeWidget (widget, view, pos) {\n var next = this.index < this.top.children.length ? this.top.children[this.index] : null;\n if (next && next.matchesWidget(widget) && (widget == next.widget || !next.widget.type.toDOM.parentNode)) {\n this.index++;\n } else {\n var desc = new WidgetViewDesc(this.top, widget, view, pos);\n this.top.children.splice(this.index++, 0, desc);\n this.changed = true;\n }\n};\n\n// Make sure a textblock looks and behaves correctly in\n// contentEditable.\nViewTreeUpdater.prototype.addTextblockHacks = function addTextblockHacks () {\n var lastChild = this.top.children[this.index - 1];\n while (lastChild instanceof MarkViewDesc) { lastChild = lastChild.children[lastChild.children.length - 1]; }\n\n if (!lastChild || // Empty textblock\n !(lastChild instanceof TextViewDesc) ||\n /\\n$/.test(lastChild.node.text)) {\n if (this.index < this.top.children.length && this.top.children[this.index].matchesHack()) {\n this.index++;\n } else {\n var dom = document.createElement(\"br\");\n this.top.children.splice(this.index++, 0, new BRHackViewDesc(this.top, nothing, dom, null));\n this.changed = true;\n }\n }\n};\n\n// : (Fragment, [ViewDesc]) → [ViewDesc]\n// Iterate from the end of the fragment and array of descs to find\n// directly matching ones, in order to avoid overeagerly reusing\n// those for other nodes. Returns an array whose positions correspond\n// to node positions in the fragment, and whose elements are either\n// descs matched to the child at that index, or empty.\nfunction preMatch(frag, descs) {\n var result = [], end = frag.childCount;\n for (var i = descs.length - 1; end > 0 && i >= 0; i--) {\n var desc = descs[i], node = desc.node;\n if (!node) { continue }\n if (node != frag.child(end - 1)) { break }\n result.push(desc);\n --end;\n }\n return {nodes: result.reverse(), offset: end}\n}\n\nfunction compareSide(a, b) { return a.type.side - b.type.side }\n\n// : (ViewDesc, DecorationSource, (Decoration, number), (Node, [Decoration], DecorationSource, number))\n// This function abstracts iterating over the nodes and decorations in\n// a fragment. Calls `onNode` for each node, with its local and child\n// decorations. Splits text nodes when there is a decoration starting\n// or ending inside of them. Calls `onWidget` for each widget.\nfunction iterDeco(parent, deco, onWidget, onNode) {\n var locals = deco.locals(parent), offset = 0;\n // Simple, cheap variant for when there are no local decorations\n if (locals.length == 0) {\n for (var i = 0; i < parent.childCount; i++) {\n var child = parent.child(i);\n onNode(child, locals, deco.forChild(offset, child), i);\n offset += child.nodeSize;\n }\n return\n }\n\n var decoIndex = 0, active = [], restNode = null;\n for (var parentIndex = 0;;) {\n if (decoIndex < locals.length && locals[decoIndex].to == offset) {\n var widget = locals[decoIndex++], widgets = (void 0);\n while (decoIndex < locals.length && locals[decoIndex].to == offset)\n { (widgets || (widgets = [widget])).push(locals[decoIndex++]); }\n if (widgets) {\n widgets.sort(compareSide);\n for (var i$1 = 0; i$1 < widgets.length; i$1++) { onWidget(widgets[i$1], parentIndex, !!restNode); }\n } else {\n onWidget(widget, parentIndex, !!restNode);\n }\n }\n\n var child$1 = (void 0), index = (void 0);\n if (restNode) {\n index = -1;\n child$1 = restNode;\n restNode = null;\n } else if (parentIndex < parent.childCount) {\n index = parentIndex;\n child$1 = parent.child(parentIndex++);\n } else {\n break\n }\n\n for (var i$2 = 0; i$2 < active.length; i$2++) { if (active[i$2].to <= offset) { active.splice(i$2--, 1); } }\n while (decoIndex < locals.length && locals[decoIndex].from <= offset && locals[decoIndex].to > offset)\n { active.push(locals[decoIndex++]); }\n\n var end = offset + child$1.nodeSize;\n if (child$1.isText) {\n var cutAt = end;\n if (decoIndex < locals.length && locals[decoIndex].from < cutAt) { cutAt = locals[decoIndex].from; }\n for (var i$3 = 0; i$3 < active.length; i$3++) { if (active[i$3].to < cutAt) { cutAt = active[i$3].to; } }\n if (cutAt < end) {\n restNode = child$1.cut(cutAt - offset);\n child$1 = child$1.cut(0, cutAt - offset);\n end = cutAt;\n index = -1;\n }\n }\n\n var outerDeco = !active.length ? nothing\n : child$1.isInline && !child$1.isLeaf ? active.filter(function (d) { return !d.inline; })\n : active.slice();\n onNode(child$1, outerDeco, deco.forChild(offset, child$1), index);\n offset = end;\n }\n}\n\n// List markers in Mobile Safari will mysteriously disappear\n// sometimes. This works around that.\nfunction iosHacks(dom) {\n if (dom.nodeName == \"UL\" || dom.nodeName == \"OL\") {\n var oldCSS = dom.style.cssText;\n dom.style.cssText = oldCSS + \"; list-style: square !important\";\n window.getComputedStyle(dom).listStyle;\n dom.style.cssText = oldCSS;\n }\n}\n\nfunction nearbyTextNode(node, offset) {\n for (;;) {\n if (node.nodeType == 3) { return node }\n if (node.nodeType == 1 && offset > 0) {\n if (node.childNodes.length > offset && node.childNodes[offset].nodeType == 3)\n { return node.childNodes[offset] }\n node = node.childNodes[offset - 1];\n offset = nodeSize(node);\n } else if (node.nodeType == 1 && offset < node.childNodes.length) {\n node = node.childNodes[offset];\n offset = 0;\n } else {\n return null\n }\n }\n}\n\n// Find a piece of text in an inline fragment, overlapping from-to\nfunction findTextInFragment(frag, text, from, to) {\n for (var i = 0, pos = 0; i < frag.childCount && pos <= to;) {\n var child = frag.child(i++), childStart = pos;\n pos += child.nodeSize;\n if (!child.isText) { continue }\n var str = child.text;\n while (i < frag.childCount) {\n var next = frag.child(i++);\n pos += next.nodeSize;\n if (!next.isText) { break }\n str += next.text;\n }\n if (pos >= from) {\n var found = str.lastIndexOf(text, to - childStart);\n if (found >= 0 && found + text.length + childStart >= from)\n { return childStart + found }\n }\n }\n return -1\n}\n\n// Replace range from-to in an array of view descs with replacement\n// (may be null to just delete). This goes very much against the grain\n// of the rest of this code, which tends to create nodes with the\n// right shape in one go, rather than messing with them after\n// creation, but is necessary in the composition hack.\nfunction replaceNodes(nodes, from, to, view, replacement) {\n var result = [];\n for (var i = 0, off = 0; i < nodes.length; i++) {\n var child = nodes[i], start = off, end = off += child.size;\n if (start >= to || end <= from) {\n result.push(child);\n } else {\n if (start < from) { result.push(child.slice(0, from - start, view)); }\n if (replacement) {\n result.push(replacement);\n replacement = null;\n }\n if (end > to) { result.push(child.slice(to - start, child.size, view)); }\n }\n }\n return result\n}\n\nfunction selectionFromDOM(view, origin) {\n var domSel = view.root.getSelection(), doc = view.state.doc;\n if (!domSel.focusNode) { return null }\n var nearestDesc = view.docView.nearestDesc(domSel.focusNode), inWidget = nearestDesc && nearestDesc.size == 0;\n var head = view.docView.posFromDOM(domSel.focusNode, domSel.focusOffset);\n if (head < 0) { return null }\n var $head = doc.resolve(head), $anchor, selection;\n if (selectionCollapsed(domSel)) {\n $anchor = $head;\n while (nearestDesc && !nearestDesc.node) { nearestDesc = nearestDesc.parent; }\n if (nearestDesc && nearestDesc.node.isAtom && NodeSelection.isSelectable(nearestDesc.node) && nearestDesc.parent\n && !(nearestDesc.node.isInline && isOnEdge(domSel.focusNode, domSel.focusOffset, nearestDesc.dom))) {\n var pos = nearestDesc.posBefore;\n selection = new NodeSelection(head == pos ? $head : doc.resolve(pos));\n }\n } else {\n var anchor = view.docView.posFromDOM(domSel.anchorNode, domSel.anchorOffset);\n if (anchor < 0) { return null }\n $anchor = doc.resolve(anchor);\n }\n\n if (!selection) {\n var bias = origin == \"pointer\" || (view.state.selection.head < $head.pos && !inWidget) ? 1 : -1;\n selection = selectionBetween(view, $anchor, $head, bias);\n }\n return selection\n}\n\nfunction editorOwnsSelection(view) {\n return view.editable ? view.hasFocus() :\n hasSelection(view) && document.activeElement && document.activeElement.contains(view.dom)\n}\n\nfunction selectionToDOM(view, force) {\n var sel = view.state.selection;\n syncNodeSelection(view, sel);\n\n if (!editorOwnsSelection(view)) { return }\n\n view.domObserver.disconnectSelection();\n\n if (view.cursorWrapper) {\n selectCursorWrapper(view);\n } else {\n var anchor = sel.anchor;\n var head = sel.head;\n var resetEditableFrom, resetEditableTo;\n if (brokenSelectBetweenUneditable && !(sel instanceof TextSelection)) {\n if (!sel.$from.parent.inlineContent)\n { resetEditableFrom = temporarilyEditableNear(view, sel.from); }\n if (!sel.empty && !sel.$from.parent.inlineContent)\n { resetEditableTo = temporarilyEditableNear(view, sel.to); }\n }\n view.docView.setSelection(anchor, head, view.root, force);\n if (brokenSelectBetweenUneditable) {\n if (resetEditableFrom) { resetEditable(resetEditableFrom); }\n if (resetEditableTo) { resetEditable(resetEditableTo); }\n }\n if (sel.visible) {\n view.dom.classList.remove(\"ProseMirror-hideselection\");\n } else {\n view.dom.classList.add(\"ProseMirror-hideselection\");\n if (\"onselectionchange\" in document) { removeClassOnSelectionChange(view); }\n }\n }\n\n view.domObserver.setCurSelection();\n view.domObserver.connectSelection();\n}\n\n// Kludge to work around Webkit not allowing a selection to start/end\n// between non-editable block nodes. We briefly make something\n// editable, set the selection, then set it uneditable again.\n\nvar brokenSelectBetweenUneditable = result.safari || result.chrome && result.chrome_version < 63;\n\nfunction temporarilyEditableNear(view, pos) {\n var ref = view.docView.domFromPos(pos, 0);\n var node = ref.node;\n var offset = ref.offset;\n var after = offset < node.childNodes.length ? node.childNodes[offset] : null;\n var before = offset ? node.childNodes[offset - 1] : null;\n if (result.safari && after && after.contentEditable == \"false\") { return setEditable(after) }\n if ((!after || after.contentEditable == \"false\") && (!before || before.contentEditable == \"false\")) {\n if (after) { return setEditable(after) }\n else if (before) { return setEditable(before) }\n }\n}\n\nfunction setEditable(element) {\n element.contentEditable = \"true\";\n if (result.safari && element.draggable) { element.draggable = false; element.wasDraggable = true; }\n return element\n}\n\nfunction resetEditable(element) {\n element.contentEditable = \"false\";\n if (element.wasDraggable) { element.draggable = true; element.wasDraggable = null; }\n}\n\nfunction removeClassOnSelectionChange(view) {\n var doc = view.dom.ownerDocument;\n doc.removeEventListener(\"selectionchange\", view.hideSelectionGuard);\n var domSel = view.root.getSelection();\n var node = domSel.anchorNode, offset = domSel.anchorOffset;\n doc.addEventListener(\"selectionchange\", view.hideSelectionGuard = function () {\n if (domSel.anchorNode != node || domSel.anchorOffset != offset) {\n doc.removeEventListener(\"selectionchange\", view.hideSelectionGuard);\n setTimeout(function () {\n if (!editorOwnsSelection(view) || view.state.selection.visible)\n { view.dom.classList.remove(\"ProseMirror-hideselection\"); }\n }, 20);\n }\n });\n}\n\nfunction selectCursorWrapper(view) {\n var domSel = view.root.getSelection(), range = document.createRange();\n var node = view.cursorWrapper.dom, img = node.nodeName == \"IMG\";\n if (img) { range.setEnd(node.parentNode, domIndex(node) + 1); }\n else { range.setEnd(node, 0); }\n range.collapse(false);\n domSel.removeAllRanges();\n domSel.addRange(range);\n // Kludge to kill 'control selection' in IE11 when selecting an\n // invisible cursor wrapper, since that would result in those weird\n // resize handles and a selection that considers the absolutely\n // positioned wrapper, rather than the root editable node, the\n // focused element.\n if (!img && !view.state.selection.visible && result.ie && result.ie_version <= 11) {\n node.disabled = true;\n node.disabled = false;\n }\n}\n\nfunction syncNodeSelection(view, sel) {\n if (sel instanceof NodeSelection) {\n var desc = view.docView.descAt(sel.from);\n if (desc != view.lastSelectedViewDesc) {\n clearNodeSelection(view);\n if (desc) { desc.selectNode(); }\n view.lastSelectedViewDesc = desc;\n }\n } else {\n clearNodeSelection(view);\n }\n}\n\n// Clear all DOM statefulness of the last node selection.\nfunction clearNodeSelection(view) {\n if (view.lastSelectedViewDesc) {\n if (view.lastSelectedViewDesc.parent)\n { view.lastSelectedViewDesc.deselectNode(); }\n view.lastSelectedViewDesc = null;\n }\n}\n\nfunction selectionBetween(view, $anchor, $head, bias) {\n return view.someProp(\"createSelectionBetween\", function (f) { return f(view, $anchor, $head); })\n || TextSelection.between($anchor, $head, bias)\n}\n\nfunction hasFocusAndSelection(view) {\n if (view.editable && view.root.activeElement != view.dom) { return false }\n return hasSelection(view)\n}\n\nfunction hasSelection(view) {\n var sel = view.root.getSelection();\n if (!sel.anchorNode) { return false }\n try {\n // Firefox will raise 'permission denied' errors when accessing\n // properties of `sel.anchorNode` when it's in a generated CSS\n // element.\n return view.dom.contains(sel.anchorNode.nodeType == 3 ? sel.anchorNode.parentNode : sel.anchorNode) &&\n (view.editable || view.dom.contains(sel.focusNode.nodeType == 3 ? sel.focusNode.parentNode : sel.focusNode))\n } catch(_) {\n return false\n }\n}\n\nfunction anchorInRightPlace(view) {\n var anchorDOM = view.docView.domFromPos(view.state.selection.anchor, 0);\n var domSel = view.root.getSelection();\n return isEquivalentPosition(anchorDOM.node, anchorDOM.offset, domSel.anchorNode, domSel.anchorOffset)\n}\n\nfunction moveSelectionBlock(state, dir) {\n var ref = state.selection;\n var $anchor = ref.$anchor;\n var $head = ref.$head;\n var $side = dir > 0 ? $anchor.max($head) : $anchor.min($head);\n var $start = !$side.parent.inlineContent ? $side : $side.depth ? state.doc.resolve(dir > 0 ? $side.after() : $side.before()) : null;\n return $start && Selection.findFrom($start, dir)\n}\n\nfunction apply(view, sel) {\n view.dispatch(view.state.tr.setSelection(sel).scrollIntoView());\n return true\n}\n\nfunction selectHorizontally(view, dir, mods) {\n var sel = view.state.selection;\n if (sel instanceof TextSelection) {\n if (!sel.empty || mods.indexOf(\"s\") > -1) {\n return false\n } else if (view.endOfTextblock(dir > 0 ? \"right\" : \"left\")) {\n var next = moveSelectionBlock(view.state, dir);\n if (next && (next instanceof NodeSelection)) { return apply(view, next) }\n return false\n } else if (!(result.mac && mods.indexOf(\"m\") > -1)) {\n var $head = sel.$head, node = $head.textOffset ? null : dir < 0 ? $head.nodeBefore : $head.nodeAfter, desc;\n if (!node || node.isText) { return false }\n var nodePos = dir < 0 ? $head.pos - node.nodeSize : $head.pos;\n if (!(node.isAtom || (desc = view.docView.descAt(nodePos)) && !desc.contentDOM)) { return false }\n if (NodeSelection.isSelectable(node)) {\n return apply(view, new NodeSelection(dir < 0 ? view.state.doc.resolve($head.pos - node.nodeSize) : $head))\n } else if (result.webkit) {\n // Chrome and Safari will introduce extra pointless cursor\n // positions around inline uneditable nodes, so we have to\n // take over and move the cursor past them (#937)\n return apply(view, new TextSelection(view.state.doc.resolve(dir < 0 ? nodePos : nodePos + node.nodeSize)))\n } else {\n return false\n }\n }\n } else if (sel instanceof NodeSelection && sel.node.isInline) {\n return apply(view, new TextSelection(dir > 0 ? sel.$to : sel.$from))\n } else {\n var next$1 = moveSelectionBlock(view.state, dir);\n if (next$1) { return apply(view, next$1) }\n return false\n }\n}\n\nfunction nodeLen(node) {\n return node.nodeType == 3 ? node.nodeValue.length : node.childNodes.length\n}\n\nfunction isIgnorable(dom) {\n var desc = dom.pmViewDesc;\n return desc && desc.size == 0 && (dom.nextSibling || dom.nodeName != \"BR\")\n}\n\n// Make sure the cursor isn't directly after one or more ignored\n// nodes, which will confuse the browser's cursor motion logic.\nfunction skipIgnoredNodesLeft(view) {\n var sel = view.root.getSelection();\n var node = sel.focusNode, offset = sel.focusOffset;\n if (!node) { return }\n var moveNode, moveOffset, force = false;\n // Gecko will do odd things when the selection is directly in front\n // of a non-editable node, so in that case, move it into the next\n // node if possible. Issue prosemirror/prosemirror#832.\n if (result.gecko && node.nodeType == 1 && offset < nodeLen(node) && isIgnorable(node.childNodes[offset])) { force = true; }\n for (;;) {\n if (offset > 0) {\n if (node.nodeType != 1) {\n break\n } else {\n var before = node.childNodes[offset - 1];\n if (isIgnorable(before)) {\n moveNode = node;\n moveOffset = --offset;\n } else if (before.nodeType == 3) {\n node = before;\n offset = node.nodeValue.length;\n } else { break }\n }\n } else if (isBlockNode(node)) {\n break\n } else {\n var prev = node.previousSibling;\n while (prev && isIgnorable(prev)) {\n moveNode = node.parentNode;\n moveOffset = domIndex(prev);\n prev = prev.previousSibling;\n }\n if (!prev) {\n node = node.parentNode;\n if (node == view.dom) { break }\n offset = 0;\n } else {\n node = prev;\n offset = nodeLen(node);\n }\n }\n }\n if (force) { setSelFocus(view, sel, node, offset); }\n else if (moveNode) { setSelFocus(view, sel, moveNode, moveOffset); }\n}\n\n// Make sure the cursor isn't directly before one or more ignored\n// nodes.\nfunction skipIgnoredNodesRight(view) {\n var sel = view.root.getSelection();\n var node = sel.focusNode, offset = sel.focusOffset;\n if (!node) { return }\n var len = nodeLen(node);\n var moveNode, moveOffset;\n for (;;) {\n if (offset < len) {\n if (node.nodeType != 1) { break }\n var after = node.childNodes[offset];\n if (isIgnorable(after)) {\n moveNode = node;\n moveOffset = ++offset;\n }\n else { break }\n } else if (isBlockNode(node)) {\n break\n } else {\n var next = node.nextSibling;\n while (next && isIgnorable(next)) {\n moveNode = next.parentNode;\n moveOffset = domIndex(next) + 1;\n next = next.nextSibling;\n }\n if (!next) {\n node = node.parentNode;\n if (node == view.dom) { break }\n offset = len = 0;\n } else {\n node = next;\n offset = 0;\n len = nodeLen(node);\n }\n }\n }\n if (moveNode) { setSelFocus(view, sel, moveNode, moveOffset); }\n}\n\nfunction isBlockNode(dom) {\n var desc = dom.pmViewDesc;\n return desc && desc.node && desc.node.isBlock\n}\n\nfunction setSelFocus(view, sel, node, offset) {\n if (selectionCollapsed(sel)) {\n var range = document.createRange();\n range.setEnd(node, offset);\n range.setStart(node, offset);\n sel.removeAllRanges();\n sel.addRange(range);\n } else if (sel.extend) {\n sel.extend(node, offset);\n }\n view.domObserver.setCurSelection();\n var state = view.state;\n // If no state update ends up happening, reset the selection.\n setTimeout(function () {\n if (view.state == state) { selectionToDOM(view); }\n }, 50);\n}\n\n// : (EditorState, number)\n// Check whether vertical selection motion would involve node\n// selections. If so, apply it (if not, the result is left to the\n// browser)\nfunction selectVertically(view, dir, mods) {\n var sel = view.state.selection;\n if (sel instanceof TextSelection && !sel.empty || mods.indexOf(\"s\") > -1) { return false }\n if (result.mac && mods.indexOf(\"m\") > -1) { return false }\n var $from = sel.$from;\n var $to = sel.$to;\n\n if (!$from.parent.inlineContent || view.endOfTextblock(dir < 0 ? \"up\" : \"down\")) {\n var next = moveSelectionBlock(view.state, dir);\n if (next && (next instanceof NodeSelection))\n { return apply(view, next) }\n }\n if (!$from.parent.inlineContent) {\n var side = dir < 0 ? $from : $to;\n var beyond = sel instanceof AllSelection ? Selection.near(side, dir) : Selection.findFrom(side, dir);\n return beyond ? apply(view, beyond) : false\n }\n return false\n}\n\nfunction stopNativeHorizontalDelete(view, dir) {\n if (!(view.state.selection instanceof TextSelection)) { return true }\n var ref = view.state.selection;\n var $head = ref.$head;\n var $anchor = ref.$anchor;\n var empty = ref.empty;\n if (!$head.sameParent($anchor)) { return true }\n if (!empty) { return false }\n if (view.endOfTextblock(dir > 0 ? \"forward\" : \"backward\")) { return true }\n var nextNode = !$head.textOffset && (dir < 0 ? $head.nodeBefore : $head.nodeAfter);\n if (nextNode && !nextNode.isText) {\n var tr = view.state.tr;\n if (dir < 0) { tr.delete($head.pos - nextNode.nodeSize, $head.pos); }\n else { tr.delete($head.pos, $head.pos + nextNode.nodeSize); }\n view.dispatch(tr);\n return true\n }\n return false\n}\n\nfunction switchEditable(view, node, state) {\n view.domObserver.stop();\n node.contentEditable = state;\n view.domObserver.start();\n}\n\n// Issue #867 / #1090 / https://bugs.chromium.org/p/chromium/issues/detail?id=903821\n// In which Safari (and at some point in the past, Chrome) does really\n// wrong things when the down arrow is pressed when the cursor is\n// directly at the start of a textblock and has an uneditable node\n// after it\nfunction safariDownArrowBug(view) {\n if (!result.safari || view.state.selection.$head.parentOffset > 0) { return }\n var ref = view.root.getSelection();\n var focusNode = ref.focusNode;\n var focusOffset = ref.focusOffset;\n if (focusNode && focusNode.nodeType == 1 && focusOffset == 0 &&\n focusNode.firstChild && focusNode.firstChild.contentEditable == \"false\") {\n var child = focusNode.firstChild;\n switchEditable(view, child, true);\n setTimeout(function () { return switchEditable(view, child, false); }, 20);\n }\n}\n\n// A backdrop key mapping used to make sure we always suppress keys\n// that have a dangerous default effect, even if the commands they are\n// bound to return false, and to make sure that cursor-motion keys\n// find a cursor (as opposed to a node selection) when pressed. For\n// cursor-motion keys, the code in the handlers also takes care of\n// block selections.\n\nfunction getMods(event) {\n var result = \"\";\n if (event.ctrlKey) { result += \"c\"; }\n if (event.metaKey) { result += \"m\"; }\n if (event.altKey) { result += \"a\"; }\n if (event.shiftKey) { result += \"s\"; }\n return result\n}\n\nfunction captureKeyDown(view, event) {\n var code = event.keyCode, mods = getMods(event);\n if (code == 8 || (result.mac && code == 72 && mods == \"c\")) { // Backspace, Ctrl-h on Mac\n return stopNativeHorizontalDelete(view, -1) || skipIgnoredNodesLeft(view)\n } else if (code == 46 || (result.mac && code == 68 && mods == \"c\")) { // Delete, Ctrl-d on Mac\n return stopNativeHorizontalDelete(view, 1) || skipIgnoredNodesRight(view)\n } else if (code == 13 || code == 27) { // Enter, Esc\n return true\n } else if (code == 37) { // Left arrow\n return selectHorizontally(view, -1, mods) || skipIgnoredNodesLeft(view)\n } else if (code == 39) { // Right arrow\n return selectHorizontally(view, 1, mods) || skipIgnoredNodesRight(view)\n } else if (code == 38) { // Up arrow\n return selectVertically(view, -1, mods) || skipIgnoredNodesLeft(view)\n } else if (code == 40) { // Down arrow\n return safariDownArrowBug(view) || selectVertically(view, 1, mods) || skipIgnoredNodesRight(view)\n } else if (mods == (result.mac ? \"m\" : \"c\") &&\n (code == 66 || code == 73 || code == 89 || code == 90)) { // Mod-[biyz]\n return true\n }\n return false\n}\n\n// Note that all referencing and parsing is done with the\n// start-of-operation selection and document, since that's the one\n// that the DOM represents. If any changes came in in the meantime,\n// the modification is mapped over those before it is applied, in\n// readDOMChange.\n\nfunction parseBetween(view, from_, to_) {\n var ref = view.docView.parseRange(from_, to_);\n var parent = ref.node;\n var fromOffset = ref.fromOffset;\n var toOffset = ref.toOffset;\n var from = ref.from;\n var to = ref.to;\n\n var domSel = view.root.getSelection(), find = null, anchor = domSel.anchorNode;\n if (anchor && view.dom.contains(anchor.nodeType == 1 ? anchor : anchor.parentNode)) {\n find = [{node: anchor, offset: domSel.anchorOffset}];\n if (!selectionCollapsed(domSel))\n { find.push({node: domSel.focusNode, offset: domSel.focusOffset}); }\n }\n // Work around issue in Chrome where backspacing sometimes replaces\n // the deleted content with a random BR node (issues #799, #831)\n if (result.chrome && view.lastKeyCode === 8) {\n for (var off = toOffset; off > fromOffset; off--) {\n var node = parent.childNodes[off - 1], desc = node.pmViewDesc;\n if (node.nodeType == \"BR\" && !desc) { toOffset = off; break }\n if (!desc || desc.size) { break }\n }\n }\n var startDoc = view.state.doc;\n var parser = view.someProp(\"domParser\") || DOMParser.fromSchema(view.state.schema);\n var $from = startDoc.resolve(from);\n\n var sel = null, doc = parser.parse(parent, {\n topNode: $from.parent,\n topMatch: $from.parent.contentMatchAt($from.index()),\n topOpen: true,\n from: fromOffset,\n to: toOffset,\n preserveWhitespace: $from.parent.type.spec.code ? \"full\" : true,\n editableContent: true,\n findPositions: find,\n ruleFromNode: ruleFromNode,\n context: $from\n });\n if (find && find[0].pos != null) {\n var anchor$1 = find[0].pos, head = find[1] && find[1].pos;\n if (head == null) { head = anchor$1; }\n sel = {anchor: anchor$1 + from, head: head + from};\n }\n return {doc: doc, sel: sel, from: from, to: to}\n}\n\nfunction ruleFromNode(dom) {\n var desc = dom.pmViewDesc;\n if (desc) {\n return desc.parseRule()\n } else if (dom.nodeName == \"BR\" && dom.parentNode) {\n // Safari replaces the list item or table cell with a BR\n // directly in the list node (?!) if you delete the last\n // character in a list item or table cell (#708, #862)\n if (result.safari && /^(ul|ol)$/i.test(dom.parentNode.nodeName)) {\n var skip = document.createElement(\"div\");\n skip.appendChild(document.createElement(\"li\"));\n return {skip: skip}\n } else if (dom.parentNode.lastChild == dom || result.safari && /^(tr|table)$/i.test(dom.parentNode.nodeName)) {\n return {ignore: true}\n }\n } else if (dom.nodeName == \"IMG\" && dom.getAttribute(\"mark-placeholder\")) {\n return {ignore: true}\n }\n}\n\nfunction readDOMChange(view, from, to, typeOver, addedNodes) {\n if (from < 0) {\n var origin = view.lastSelectionTime > Date.now() - 50 ? view.lastSelectionOrigin : null;\n var newSel = selectionFromDOM(view, origin);\n if (newSel && !view.state.selection.eq(newSel)) {\n var tr$1 = view.state.tr.setSelection(newSel);\n if (origin == \"pointer\") { tr$1.setMeta(\"pointer\", true); }\n else if (origin == \"key\") { tr$1.scrollIntoView(); }\n view.dispatch(tr$1);\n }\n return\n }\n\n var $before = view.state.doc.resolve(from);\n var shared = $before.sharedDepth(to);\n from = $before.before(shared + 1);\n to = view.state.doc.resolve(to).after(shared + 1);\n\n var sel = view.state.selection;\n var parse = parseBetween(view, from, to);\n // Chrome sometimes leaves the cursor before the inserted text when\n // composing after a cursor wrapper. This moves it forward.\n if (result.chrome && view.cursorWrapper && parse.sel && parse.sel.anchor == view.cursorWrapper.deco.from) {\n var text = view.cursorWrapper.deco.type.toDOM.nextSibling;\n var size = text && text.nodeValue ? text.nodeValue.length : 1;\n parse.sel = {anchor: parse.sel.anchor + size, head: parse.sel.anchor + size};\n }\n\n var doc = view.state.doc, compare = doc.slice(parse.from, parse.to);\n var preferredPos, preferredSide;\n // Prefer anchoring to end when Backspace is pressed\n if (view.lastKeyCode === 8 && Date.now() - 100 < view.lastKeyCodeTime) {\n preferredPos = view.state.selection.to;\n preferredSide = \"end\";\n } else {\n preferredPos = view.state.selection.from;\n preferredSide = \"start\";\n }\n view.lastKeyCode = null;\n\n var change = findDiff(compare.content, parse.doc.content, parse.from, preferredPos, preferredSide);\n if (!change) {\n if (typeOver && sel instanceof TextSelection && !sel.empty && sel.$head.sameParent(sel.$anchor) &&\n !view.composing && !(parse.sel && parse.sel.anchor != parse.sel.head)) {\n change = {start: sel.from, endA: sel.to, endB: sel.to};\n } else if (result.ios && view.lastIOSEnter > Date.now() - 225 &&\n addedNodes.some(function (n) { return n.nodeName == \"DIV\" || n.nodeName == \"P\"; }) &&\n view.someProp(\"handleKeyDown\", function (f) { return f(view, keyEvent(13, \"Enter\")); })) {\n view.lastIOSEnter = 0;\n return\n } else {\n if (parse.sel) {\n var sel$1 = resolveSelection(view, view.state.doc, parse.sel);\n if (sel$1 && !sel$1.eq(view.state.selection)) { view.dispatch(view.state.tr.setSelection(sel$1)); }\n }\n return\n }\n }\n view.domChangeCount++;\n // Handle the case where overwriting a selection by typing matches\n // the start or end of the selected content, creating a change\n // that's smaller than what was actually overwritten.\n if (view.state.selection.from < view.state.selection.to &&\n change.start == change.endB &&\n view.state.selection instanceof TextSelection) {\n if (change.start > view.state.selection.from && change.start <= view.state.selection.from + 2) {\n change.start = view.state.selection.from;\n } else if (change.endA < view.state.selection.to && change.endA >= view.state.selection.to - 2) {\n change.endB += (view.state.selection.to - change.endA);\n change.endA = view.state.selection.to;\n }\n }\n\n // IE11 will insert a non-breaking space _ahead_ of the space after\n // the cursor space when adding a space before another space. When\n // that happened, adjust the change to cover the space instead.\n if (result.ie && result.ie_version <= 11 && change.endB == change.start + 1 &&\n change.endA == change.start && change.start > parse.from &&\n parse.doc.textBetween(change.start - parse.from - 1, change.start - parse.from + 1) == \" \\u00a0\") {\n change.start--;\n change.endA--;\n change.endB--;\n }\n\n var $from = parse.doc.resolveNoCache(change.start - parse.from);\n var $to = parse.doc.resolveNoCache(change.endB - parse.from);\n var inlineChange = $from.sameParent($to) && $from.parent.inlineContent;\n var nextSel;\n // If this looks like the effect of pressing Enter (or was recorded\n // as being an iOS enter press), just dispatch an Enter key instead.\n if (((result.ios && view.lastIOSEnter > Date.now() - 225 &&\n (!inlineChange || addedNodes.some(function (n) { return n.nodeName == \"DIV\" || n.nodeName == \"P\"; }))) ||\n (!inlineChange && $from.pos < parse.doc.content.size &&\n (nextSel = Selection.findFrom(parse.doc.resolve($from.pos + 1), 1, true)) &&\n nextSel.head == $to.pos)) &&\n view.someProp(\"handleKeyDown\", function (f) { return f(view, keyEvent(13, \"Enter\")); })) {\n view.lastIOSEnter = 0;\n return\n }\n // Same for backspace\n if (view.state.selection.anchor > change.start &&\n looksLikeJoin(doc, change.start, change.endA, $from, $to) &&\n view.someProp(\"handleKeyDown\", function (f) { return f(view, keyEvent(8, \"Backspace\")); })) {\n if (result.android && result.chrome) { view.domObserver.suppressSelectionUpdates(); } // #820\n return\n }\n\n // This tries to detect Android virtual keyboard\n // enter-and-pick-suggestion action. That sometimes (see issue\n // #1059) first fires a DOM mutation, before moving the selection to\n // the newly created block. And then, because ProseMirror cleans up\n // the DOM selection, it gives up moving the selection entirely,\n // leaving the cursor in the wrong place. When that happens, we drop\n // the new paragraph from the initial change, and fire a simulated\n // enter key afterwards.\n if (result.android && !inlineChange && $from.start() != $to.start() && $to.parentOffset == 0 && $from.depth == $to.depth &&\n parse.sel && parse.sel.anchor == parse.sel.head && parse.sel.head == change.endA) {\n change.endB -= 2;\n $to = parse.doc.resolveNoCache(change.endB - parse.from);\n setTimeout(function () {\n view.someProp(\"handleKeyDown\", function (f) { return f(view, keyEvent(13, \"Enter\")); });\n }, 20);\n }\n\n var chFrom = change.start, chTo = change.endA;\n\n var tr, storedMarks, markChange, $from1;\n if (inlineChange) {\n if ($from.pos == $to.pos) { // Deletion\n // IE11 sometimes weirdly moves the DOM selection around after\n // backspacing out the first element in a textblock\n if (result.ie && result.ie_version <= 11 && $from.parentOffset == 0) {\n view.domObserver.suppressSelectionUpdates();\n setTimeout(function () { return selectionToDOM(view); }, 20);\n }\n tr = view.state.tr.delete(chFrom, chTo);\n storedMarks = doc.resolve(change.start).marksAcross(doc.resolve(change.endA));\n } else if ( // Adding or removing a mark\n change.endA == change.endB && ($from1 = doc.resolve(change.start)) &&\n (markChange = isMarkChange($from.parent.content.cut($from.parentOffset, $to.parentOffset),\n $from1.parent.content.cut($from1.parentOffset, change.endA - $from1.start())))\n ) {\n tr = view.state.tr;\n if (markChange.type == \"add\") { tr.addMark(chFrom, chTo, markChange.mark); }\n else { tr.removeMark(chFrom, chTo, markChange.mark); }\n } else if ($from.parent.child($from.index()).isText && $from.index() == $to.index() - ($to.textOffset ? 0 : 1)) {\n // Both positions in the same text node -- simply insert text\n var text$1 = $from.parent.textBetween($from.parentOffset, $to.parentOffset);\n if (view.someProp(\"handleTextInput\", function (f) { return f(view, chFrom, chTo, text$1); })) { return }\n tr = view.state.tr.insertText(text$1, chFrom, chTo);\n }\n }\n\n if (!tr)\n { tr = view.state.tr.replace(chFrom, chTo, parse.doc.slice(change.start - parse.from, change.endB - parse.from)); }\n if (parse.sel) {\n var sel$2 = resolveSelection(view, tr.doc, parse.sel);\n // Chrome Android will sometimes, during composition, report the\n // selection in the wrong place. If it looks like that is\n // happening, don't update the selection.\n // Edge just doesn't move the cursor forward when you start typing\n // in an empty block or between br nodes.\n if (sel$2 && !(result.chrome && result.android && view.composing && sel$2.empty &&\n (sel$2.head == chFrom || sel$2.head == tr.mapping.map(chTo) - 1) ||\n result.ie && sel$2.empty && sel$2.head == chFrom))\n { tr.setSelection(sel$2); }\n }\n if (storedMarks) { tr.ensureMarks(storedMarks); }\n view.dispatch(tr.scrollIntoView());\n}\n\nfunction resolveSelection(view, doc, parsedSel) {\n if (Math.max(parsedSel.anchor, parsedSel.head) > doc.content.size) { return null }\n return selectionBetween(view, doc.resolve(parsedSel.anchor), doc.resolve(parsedSel.head))\n}\n\n// : (Fragment, Fragment) → ?{mark: Mark, type: string}\n// Given two same-length, non-empty fragments of inline content,\n// determine whether the first could be created from the second by\n// removing or adding a single mark type.\nfunction isMarkChange(cur, prev) {\n var curMarks = cur.firstChild.marks, prevMarks = prev.firstChild.marks;\n var added = curMarks, removed = prevMarks, type, mark, update;\n for (var i = 0; i < prevMarks.length; i++) { added = prevMarks[i].removeFromSet(added); }\n for (var i$1 = 0; i$1 < curMarks.length; i$1++) { removed = curMarks[i$1].removeFromSet(removed); }\n if (added.length == 1 && removed.length == 0) {\n mark = added[0];\n type = \"add\";\n update = function (node) { return node.mark(mark.addToSet(node.marks)); };\n } else if (added.length == 0 && removed.length == 1) {\n mark = removed[0];\n type = \"remove\";\n update = function (node) { return node.mark(mark.removeFromSet(node.marks)); };\n } else {\n return null\n }\n var updated = [];\n for (var i$2 = 0; i$2 < prev.childCount; i$2++) { updated.push(update(prev.child(i$2))); }\n if (Fragment.from(updated).eq(cur)) { return {mark: mark, type: type} }\n}\n\nfunction looksLikeJoin(old, start, end, $newStart, $newEnd) {\n if (!$newStart.parent.isTextblock ||\n // The content must have shrunk\n end - start <= $newEnd.pos - $newStart.pos ||\n // newEnd must point directly at or after the end of the block that newStart points into\n skipClosingAndOpening($newStart, true, false) < $newEnd.pos)\n { return false }\n\n var $start = old.resolve(start);\n // Start must be at the end of a block\n if ($start.parentOffset < $start.parent.content.size || !$start.parent.isTextblock)\n { return false }\n var $next = old.resolve(skipClosingAndOpening($start, true, true));\n // The next textblock must start before end and end near it\n if (!$next.parent.isTextblock || $next.pos > end ||\n skipClosingAndOpening($next, true, false) < end)\n { return false }\n\n // The fragments after the join point must match\n return $newStart.parent.content.cut($newStart.parentOffset).eq($next.parent.content)\n}\n\nfunction skipClosingAndOpening($pos, fromEnd, mayOpen) {\n var depth = $pos.depth, end = fromEnd ? $pos.end() : $pos.pos;\n while (depth > 0 && (fromEnd || $pos.indexAfter(depth) == $pos.node(depth).childCount)) {\n depth--;\n end++;\n fromEnd = false;\n }\n if (mayOpen) {\n var next = $pos.node(depth).maybeChild($pos.indexAfter(depth));\n while (next && !next.isLeaf) {\n next = next.firstChild;\n end++;\n }\n }\n return end\n}\n\nfunction findDiff(a, b, pos, preferredPos, preferredSide) {\n var start = a.findDiffStart(b, pos);\n if (start == null) { return null }\n var ref = a.findDiffEnd(b, pos + a.size, pos + b.size);\n var endA = ref.a;\n var endB = ref.b;\n if (preferredSide == \"end\") {\n var adjust = Math.max(0, start - Math.min(endA, endB));\n preferredPos -= endA + adjust - start;\n }\n if (endA < start && a.size < b.size) {\n var move = preferredPos <= start && preferredPos >= endA ? start - preferredPos : 0;\n start -= move;\n endB = start + (endB - endA);\n endA = start;\n } else if (endB < start) {\n var move$1 = preferredPos <= start && preferredPos >= endB ? start - preferredPos : 0;\n start -= move$1;\n endA = start + (endA - endB);\n endB = start;\n }\n return {start: start, endA: endA, endB: endB}\n}\n\nfunction serializeForClipboard(view, slice) {\n var context = [];\n var content = slice.content;\n var openStart = slice.openStart;\n var openEnd = slice.openEnd;\n while (openStart > 1 && openEnd > 1 && content.childCount == 1 && content.firstChild.childCount == 1) {\n openStart--;\n openEnd--;\n var node = content.firstChild;\n context.push(node.type.name, node.attrs != node.type.defaultAttrs ? node.attrs : null);\n content = node.content;\n }\n\n var serializer = view.someProp(\"clipboardSerializer\") || DOMSerializer.fromSchema(view.state.schema);\n var doc = detachedDoc(), wrap = doc.createElement(\"div\");\n wrap.appendChild(serializer.serializeFragment(content, {document: doc}));\n\n var firstChild = wrap.firstChild, needsWrap;\n while (firstChild && firstChild.nodeType == 1 && (needsWrap = wrapMap[firstChild.nodeName.toLowerCase()])) {\n for (var i = needsWrap.length - 1; i >= 0; i--) {\n var wrapper = doc.createElement(needsWrap[i]);\n while (wrap.firstChild) { wrapper.appendChild(wrap.firstChild); }\n wrap.appendChild(wrapper);\n }\n firstChild = wrap.firstChild;\n }\n\n if (firstChild && firstChild.nodeType == 1)\n { firstChild.setAttribute(\"data-pm-slice\", (openStart + \" \" + openEnd + \" \" + (JSON.stringify(context)))); }\n\n var text = view.someProp(\"clipboardTextSerializer\", function (f) { return f(slice); }) ||\n slice.content.textBetween(0, slice.content.size, \"\\n\\n\");\n\n return {dom: wrap, text: text}\n}\n\n// : (EditorView, string, string, ?bool, ResolvedPos) → ?Slice\n// Read a slice of content from the clipboard (or drop data).\nfunction parseFromClipboard(view, text, html, plainText, $context) {\n var dom, inCode = $context.parent.type.spec.code, slice;\n if (!html && !text) { return null }\n var asText = text && (plainText || inCode || !html);\n if (asText) {\n view.someProp(\"transformPastedText\", function (f) { text = f(text, inCode || plainText); });\n if (inCode) { return new Slice(Fragment.from(view.state.schema.text(text)), 0, 0) }\n var parsed = view.someProp(\"clipboardTextParser\", function (f) { return f(text, $context, plainText); });\n if (parsed) {\n slice = parsed;\n } else {\n dom = document.createElement(\"div\");\n text.trim().split(/(?:\\r\\n?|\\n)+/).forEach(function (block) {\n dom.appendChild(document.createElement(\"p\")).textContent = block;\n });\n }\n } else {\n view.someProp(\"transformPastedHTML\", function (f) { html = f(html); });\n dom = readHTML(html);\n }\n\n var contextNode = dom && dom.querySelector(\"[data-pm-slice]\");\n var sliceData = contextNode && /^(\\d+) (\\d+) (.*)/.exec(contextNode.getAttribute(\"data-pm-slice\"));\n if (!slice) {\n var parser = view.someProp(\"clipboardParser\") || view.someProp(\"domParser\") || DOMParser.fromSchema(view.state.schema);\n slice = parser.parseSlice(dom, {preserveWhitespace: !!(asText || sliceData), context: $context});\n }\n if (sliceData)\n { slice = addContext(closeSlice(slice, +sliceData[1], +sliceData[2]), sliceData[3]); }\n else // HTML wasn't created by ProseMirror. Make sure top-level siblings are coherent\n { slice = Slice.maxOpen(normalizeSiblings(slice.content, $context), false); }\n\n view.someProp(\"transformPasted\", function (f) { slice = f(slice); });\n return slice\n}\n\n// Takes a slice parsed with parseSlice, which means there hasn't been\n// any content-expression checking done on the top nodes, tries to\n// find a parent node in the current context that might fit the nodes,\n// and if successful, rebuilds the slice so that it fits into that parent.\n//\n// This addresses the problem that Transform.replace expects a\n// coherent slice, and will fail to place a set of siblings that don't\n// fit anywhere in the schema.\nfunction normalizeSiblings(fragment, $context) {\n if (fragment.childCount < 2) { return fragment }\n var loop = function ( d ) {\n var parent = $context.node(d);\n var match = parent.contentMatchAt($context.index(d));\n var lastWrap = (void 0), result = [];\n fragment.forEach(function (node) {\n if (!result) { return }\n var wrap = match.findWrapping(node.type), inLast;\n if (!wrap) { return result = null }\n if (inLast = result.length && lastWrap.length && addToSibling(wrap, lastWrap, node, result[result.length - 1], 0)) {\n result[result.length - 1] = inLast;\n } else {\n if (result.length) { result[result.length - 1] = closeRight(result[result.length - 1], lastWrap.length); }\n var wrapped = withWrappers(node, wrap);\n result.push(wrapped);\n match = match.matchType(wrapped.type, wrapped.attrs);\n lastWrap = wrap;\n }\n });\n if (result) { return { v: Fragment.from(result) } }\n };\n\n for (var d = $context.depth; d >= 0; d--) {\n var returned = loop( d );\n\n if ( returned ) return returned.v;\n }\n return fragment\n}\n\nfunction withWrappers(node, wrap, from) {\n if ( from === void 0 ) from = 0;\n\n for (var i = wrap.length - 1; i >= from; i--)\n { node = wrap[i].create(null, Fragment.from(node)); }\n return node\n}\n\n// Used to group adjacent nodes wrapped in similar parents by\n// normalizeSiblings into the same parent node\nfunction addToSibling(wrap, lastWrap, node, sibling, depth) {\n if (depth < wrap.length && depth < lastWrap.length && wrap[depth] == lastWrap[depth]) {\n var inner = addToSibling(wrap, lastWrap, node, sibling.lastChild, depth + 1);\n if (inner) { return sibling.copy(sibling.content.replaceChild(sibling.childCount - 1, inner)) }\n var match = sibling.contentMatchAt(sibling.childCount);\n if (match.matchType(depth == wrap.length - 1 ? node.type : wrap[depth + 1]))\n { return sibling.copy(sibling.content.append(Fragment.from(withWrappers(node, wrap, depth + 1)))) }\n }\n}\n\nfunction closeRight(node, depth) {\n if (depth == 0) { return node }\n var fragment = node.content.replaceChild(node.childCount - 1, closeRight(node.lastChild, depth - 1));\n var fill = node.contentMatchAt(node.childCount).fillBefore(Fragment.empty, true);\n return node.copy(fragment.append(fill))\n}\n\nfunction closeRange(fragment, side, from, to, depth, openEnd) {\n var node = side < 0 ? fragment.firstChild : fragment.lastChild, inner = node.content;\n if (depth < to - 1) { inner = closeRange(inner, side, from, to, depth + 1, openEnd); }\n if (depth >= from)\n { inner = side < 0 ? node.contentMatchAt(0).fillBefore(inner, fragment.childCount > 1 || openEnd <= depth).append(inner)\n : inner.append(node.contentMatchAt(node.childCount).fillBefore(Fragment.empty, true)); }\n return fragment.replaceChild(side < 0 ? 0 : fragment.childCount - 1, node.copy(inner))\n}\n\nfunction closeSlice(slice, openStart, openEnd) {\n if (openStart < slice.openStart)\n { slice = new Slice(closeRange(slice.content, -1, openStart, slice.openStart, 0, slice.openEnd), openStart, slice.openEnd); }\n if (openEnd < slice.openEnd)\n { slice = new Slice(closeRange(slice.content, 1, openEnd, slice.openEnd, 0, 0), slice.openStart, openEnd); }\n return slice\n}\n\n// Trick from jQuery -- some elements must be wrapped in other\n// elements for innerHTML to work. I.e. if you do `div.innerHTML =\n// \"
{{ `${getTime(comment)}` }}
\r\n