angelovcom.net

rich-text.js (137499B)

---

 this["wp"] = this["wp"] || {}; this["wp"]["richText"] =
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 /************************************************************************/
 /******/ ({
 
 /***/ "1ZqX":
 /***/ (function(module, exports) {
 
 (function() { module.exports = window["wp"]["data"]; }());
 
 /***/ }),
 
 /***/ "GRId":
 /***/ (function(module, exports) {
 
 (function() { module.exports = window["wp"]["element"]; }());
 
 /***/ }),
 
 /***/ "K9lf":
 /***/ (function(module, exports) {
 
 (function() { module.exports = window["wp"]["compose"]; }());
 
 /***/ }),
 
 /***/ "RxS6":
 /***/ (function(module, exports) {
 
 (function() { module.exports = window["wp"]["keycodes"]; }());
 
 /***/ }),
 
 /***/ "Vx3V":
 /***/ (function(module, exports) {
 
 (function() { module.exports = window["wp"]["escapeHtml"]; }());
 
 /***/ }),
 
 /***/ "YLtl":
 /***/ (function(module, exports) {
 
 (function() { module.exports = window["lodash"]; }());
 
 /***/ }),
 
 /***/ "pPDe":
 /***/ (function(module, __webpack_exports__, __webpack_require__) {
 
 "use strict";
 
 
 var LEAF_KEY, hasWeakMap;
 
 /**
  * Arbitrary value used as key for referencing cache object in WeakMap tree.
  *
  * @type {Object}
  */
 LEAF_KEY = {};
 
 /**
  * Whether environment supports WeakMap.
  *
  * @type {boolean}
  */
 hasWeakMap = typeof WeakMap !== 'undefined';
 
 /**
  * Returns the first argument as the sole entry in an array.
  *
  * @param {*} value Value to return.
  *
  * @return {Array} Value returned as entry in array.
  */
 function arrayOf( value ) {
 	return [ value ];
 }
 
 /**
  * Returns true if the value passed is object-like, or false otherwise. A value
  * is object-like if it can support property assignment, e.g. object or array.
  *
  * @param {*} value Value to test.
  *
  * @return {boolean} Whether value is object-like.
  */
 function isObjectLike( value ) {
 	return !! value && 'object' === typeof value;
 }
 
 /**
  * Creates and returns a new cache object.
  *
  * @return {Object} Cache object.
  */
 function createCache() {
 	var cache = {
 		clear: function() {
 			cache.head = null;
 		},
 	};
 
 	return cache;
 }
 
 /**
  * Returns true if entries within the two arrays are strictly equal by
  * reference from a starting index.
  *
  * @param {Array}  a         First array.
  * @param {Array}  b         Second array.
  * @param {number} fromIndex Index from which to start comparison.
  *
  * @return {boolean} Whether arrays are shallowly equal.
  */
 function isShallowEqual( a, b, fromIndex ) {
 	var i;
 
 	if ( a.length !== b.length ) {
 		return false;
 	}
 
 	for ( i = fromIndex; i < a.length; i++ ) {
 		if ( a[ i ] !== b[ i ] ) {
 			return false;
 		}
 	}
 
 	return true;
 }
 
 /**
  * Returns a memoized selector function. The getDependants function argument is
  * called before the memoized selector and is expected to return an immutable
  * reference or array of references on which the selector depends for computing
  * its own return value. The memoize cache is preserved only as long as those
  * dependant references remain the same. If getDependants returns a different
  * reference(s), the cache is cleared and the selector value regenerated.
  *
  * @param {Function} selector      Selector function.
  * @param {Function} getDependants Dependant getter returning an immutable
  *                                 reference or array of reference used in
  *                                 cache bust consideration.
  *
  * @return {Function} Memoized selector.
  */
 /* harmony default export */ __webpack_exports__["a"] = (function( selector, getDependants ) {
 	var rootCache, getCache;
 
 	// Use object source as dependant if getter not provided
 	if ( ! getDependants ) {
 		getDependants = arrayOf;
 	}
 
 	/**
 	 * Returns the root cache. If WeakMap is supported, this is assigned to the
 	 * root WeakMap cache set, otherwise it is a shared instance of the default
 	 * cache object.
 	 *
 	 * @return {(WeakMap|Object)} Root cache object.
 	 */
 	function getRootCache() {
 		return rootCache;
 	}
 
 	/**
 	 * Returns the cache for a given dependants array. When possible, a WeakMap
 	 * will be used to create a unique cache for each set of dependants. This
 	 * is feasible due to the nature of WeakMap in allowing garbage collection
 	 * to occur on entries where the key object is no longer referenced. Since
 	 * WeakMap requires the key to be an object, this is only possible when the
 	 * dependant is object-like. The root cache is created as a hierarchy where
 	 * each top-level key is the first entry in a dependants set, the value a
 	 * WeakMap where each key is the next dependant, and so on. This continues
 	 * so long as the dependants are object-like. If no dependants are object-
 	 * like, then the cache is shared across all invocations.
 	 *
 	 * @see isObjectLike
 	 *
 	 * @param {Array} dependants Selector dependants.
 	 *
 	 * @return {Object} Cache object.
 	 */
 	function getWeakMapCache( dependants ) {
 		var caches = rootCache,
 			isUniqueByDependants = true,
 			i, dependant, map, cache;
 
 		for ( i = 0; i < dependants.length; i++ ) {
 			dependant = dependants[ i ];
 
 			// Can only compose WeakMap from object-like key.
 			if ( ! isObjectLike( dependant ) ) {
 				isUniqueByDependants = false;
 				break;
 			}
 
 			// Does current segment of cache already have a WeakMap?
 			if ( caches.has( dependant ) ) {
 				// Traverse into nested WeakMap.
 				caches = caches.get( dependant );
 			} else {
 				// Create, set, and traverse into a new one.
 				map = new WeakMap();
 				caches.set( dependant, map );
 				caches = map;
 			}
 		}
 
 		// We use an arbitrary (but consistent) object as key for the last item
 		// in the WeakMap to serve as our running cache.
 		if ( ! caches.has( LEAF_KEY ) ) {
 			cache = createCache();
 			cache.isUniqueByDependants = isUniqueByDependants;
 			caches.set( LEAF_KEY, cache );
 		}
 
 		return caches.get( LEAF_KEY );
 	}
 
 	// Assign cache handler by availability of WeakMap
 	getCache = hasWeakMap ? getWeakMapCache : getRootCache;
 
 	/**
 	 * Resets root memoization cache.
 	 */
 	function clear() {
 		rootCache = hasWeakMap ? new WeakMap() : createCache();
 	}
 
 	// eslint-disable-next-line jsdoc/check-param-names
 	/**
 	 * The augmented selector call, considering first whether dependants have
 	 * changed before passing it to underlying memoize function.
 	 *
 	 * @param {Object} source    Source object for derivation.
 	 * @param {...*}   extraArgs Additional arguments to pass to selector.
 	 *
 	 * @return {*} Selector result.
 	 */
 	function callSelector( /* source, ...extraArgs */ ) {
 		var len = arguments.length,
 			cache, node, i, args, dependants;
 
 		// Create copy of arguments (avoid leaking deoptimization).
 		args = new Array( len );
 		for ( i = 0; i < len; i++ ) {
 			args[ i ] = arguments[ i ];
 		}
 
 		dependants = getDependants.apply( null, args );
 		cache = getCache( dependants );
 
 		// If not guaranteed uniqueness by dependants (primitive type or lack
 		// of WeakMap support), shallow compare against last dependants and, if
 		// references have changed, destroy cache to recalculate result.
 		if ( ! cache.isUniqueByDependants ) {
 			if ( cache.lastDependants && ! isShallowEqual( dependants, cache.lastDependants, 0 ) ) {
 				cache.clear();
 			}
 
 			cache.lastDependants = dependants;
 		}
 
 		node = cache.head;
 		while ( node ) {
 			// Check whether node arguments match arguments
 			if ( ! isShallowEqual( node.args, args, 1 ) ) {
 				node = node.next;
 				continue;
 			}
 
 			// At this point we can assume we've found a match
 
 			// Surface matched node to head if not already
 			if ( node !== cache.head ) {
 				// Adjust siblings to point to each other.
 				node.prev.next = node.next;
 				if ( node.next ) {
 					node.next.prev = node.prev;
 				}
 
 				node.next = cache.head;
 				node.prev = null;
 				cache.head.prev = node;
 				cache.head = node;
 			}
 
 			// Return immediately
 			return node.val;
 		}
 
 		// No cached value found. Continue to insertion phase:
 
 		node = {
 			// Generate the result from original function
 			val: selector.apply( null, args ),
 		};
 
 		// Avoid including the source object in the cache.
 		args[ 0 ] = null;
 		node.args = args;
 
 		// Don't need to check whether node is already head, since it would
 		// have been returned above already if it was
 
 		// Shift existing head down list
 		if ( cache.head ) {
 			cache.head.prev = node;
 			node.next = cache.head;
 		}
 
 		cache.head = node;
 
 		return node.val;
 	}
 
 	callSelector.getDependants = getDependants;
 	callSelector.clear = clear;
 	clear();
 
 	return callSelector;
 });
 
 
 /***/ }),
 
 /***/ "yyEc":
 /***/ (function(module, __webpack_exports__, __webpack_require__) {
 
 "use strict";
 // ESM COMPAT FLAG
 __webpack_require__.r(__webpack_exports__);
 
 // EXPORTS
 __webpack_require__.d(__webpack_exports__, "store", function() { return /* reexport */ store; });
 __webpack_require__.d(__webpack_exports__, "applyFormat", function() { return /* reexport */ applyFormat; });
 __webpack_require__.d(__webpack_exports__, "concat", function() { return /* reexport */ concat; });
 __webpack_require__.d(__webpack_exports__, "create", function() { return /* reexport */ create; });
 __webpack_require__.d(__webpack_exports__, "getActiveFormat", function() { return /* reexport */ getActiveFormat; });
 __webpack_require__.d(__webpack_exports__, "getActiveObject", function() { return /* reexport */ getActiveObject; });
 __webpack_require__.d(__webpack_exports__, "getTextContent", function() { return /* reexport */ getTextContent; });
 __webpack_require__.d(__webpack_exports__, "__unstableIsListRootSelected", function() { return /* reexport */ isListRootSelected; });
 __webpack_require__.d(__webpack_exports__, "__unstableIsActiveListType", function() { return /* reexport */ isActiveListType; });
 __webpack_require__.d(__webpack_exports__, "isCollapsed", function() { return /* reexport */ isCollapsed; });
 __webpack_require__.d(__webpack_exports__, "isEmpty", function() { return /* reexport */ isEmpty; });
 __webpack_require__.d(__webpack_exports__, "__unstableIsEmptyLine", function() { return /* reexport */ isEmptyLine; });
 __webpack_require__.d(__webpack_exports__, "join", function() { return /* reexport */ join; });
 __webpack_require__.d(__webpack_exports__, "registerFormatType", function() { return /* reexport */ registerFormatType; });
 __webpack_require__.d(__webpack_exports__, "removeFormat", function() { return /* reexport */ removeFormat; });
 __webpack_require__.d(__webpack_exports__, "remove", function() { return /* reexport */ remove_remove; });
 __webpack_require__.d(__webpack_exports__, "replace", function() { return /* reexport */ replace_replace; });
 __webpack_require__.d(__webpack_exports__, "insert", function() { return /* reexport */ insert; });
 __webpack_require__.d(__webpack_exports__, "__unstableInsertLineSeparator", function() { return /* reexport */ insertLineSeparator; });
 __webpack_require__.d(__webpack_exports__, "__unstableRemoveLineSeparator", function() { return /* reexport */ removeLineSeparator; });
 __webpack_require__.d(__webpack_exports__, "insertObject", function() { return /* reexport */ insertObject; });
 __webpack_require__.d(__webpack_exports__, "slice", function() { return /* reexport */ slice; });
 __webpack_require__.d(__webpack_exports__, "split", function() { return /* reexport */ split; });
 __webpack_require__.d(__webpack_exports__, "__unstableToDom", function() { return /* reexport */ toDom; });
 __webpack_require__.d(__webpack_exports__, "toHTMLString", function() { return /* reexport */ toHTMLString; });
 __webpack_require__.d(__webpack_exports__, "toggleFormat", function() { return /* reexport */ toggleFormat; });
 __webpack_require__.d(__webpack_exports__, "__UNSTABLE_LINE_SEPARATOR", function() { return /* reexport */ LINE_SEPARATOR; });
 __webpack_require__.d(__webpack_exports__, "unregisterFormatType", function() { return /* reexport */ unregisterFormatType; });
 __webpack_require__.d(__webpack_exports__, "__unstableCanIndentListItems", function() { return /* reexport */ canIndentListItems; });
 __webpack_require__.d(__webpack_exports__, "__unstableCanOutdentListItems", function() { return /* reexport */ canOutdentListItems; });
 __webpack_require__.d(__webpack_exports__, "__unstableIndentListItems", function() { return /* reexport */ indentListItems; });
 __webpack_require__.d(__webpack_exports__, "__unstableOutdentListItems", function() { return /* reexport */ outdentListItems; });
 __webpack_require__.d(__webpack_exports__, "__unstableChangeListType", function() { return /* reexport */ changeListType; });
 __webpack_require__.d(__webpack_exports__, "__unstableCreateElement", function() { return /* reexport */ createElement; });
 __webpack_require__.d(__webpack_exports__, "useAnchorRef", function() { return /* reexport */ useAnchorRef; });
 __webpack_require__.d(__webpack_exports__, "__experimentalRichText", function() { return /* reexport */ __experimentalRichText; });
 __webpack_require__.d(__webpack_exports__, "__unstableUseRichText", function() { return /* reexport */ useRichText; });
 __webpack_require__.d(__webpack_exports__, "__unstableFormatEdit", function() { return /* reexport */ FormatEdit; });
 
 // NAMESPACE OBJECT: ./node_modules/@wordpress/rich-text/build-module/store/selectors.js
 var selectors_namespaceObject = {};
 __webpack_require__.r(selectors_namespaceObject);
 __webpack_require__.d(selectors_namespaceObject, "getFormatTypes", function() { return getFormatTypes; });
 __webpack_require__.d(selectors_namespaceObject, "getFormatType", function() { return getFormatType; });
 __webpack_require__.d(selectors_namespaceObject, "getFormatTypeForBareElement", function() { return getFormatTypeForBareElement; });
 __webpack_require__.d(selectors_namespaceObject, "getFormatTypeForClassName", function() { return getFormatTypeForClassName; });
 
 // NAMESPACE OBJECT: ./node_modules/@wordpress/rich-text/build-module/store/actions.js
 var actions_namespaceObject = {};
 __webpack_require__.r(actions_namespaceObject);
 __webpack_require__.d(actions_namespaceObject, "addFormatTypes", function() { return addFormatTypes; });
 __webpack_require__.d(actions_namespaceObject, "removeFormatTypes", function() { return removeFormatTypes; });
 
 // EXTERNAL MODULE: external ["wp","data"]
 var external_wp_data_ = __webpack_require__("1ZqX");
 
 // EXTERNAL MODULE: external "lodash"
 var external_lodash_ = __webpack_require__("YLtl");
 
 // CONCATENATED MODULE: ./node_modules/@wordpress/rich-text/build-module/store/reducer.js
 /**
  * External dependencies
  */
 
 /**
  * WordPress dependencies
  */
 
 
 /**
  * Reducer managing the format types
  *
  * @param {Object} state  Current state.
  * @param {Object} action Dispatched action.
  *
  * @return {Object} Updated state.
  */
 
 function reducer_formatTypes(state = {}, action) {
   switch (action.type) {
     case 'ADD_FORMAT_TYPES':
       return { ...state,
         ...Object(external_lodash_["keyBy"])(action.formatTypes, 'name')
       };
 
     case 'REMOVE_FORMAT_TYPES':
       return Object(external_lodash_["omit"])(state, action.names);
   }
 
   return state;
 }
 /* harmony default export */ var reducer = (Object(external_wp_data_["combineReducers"])({
   formatTypes: reducer_formatTypes
 }));
 
 // EXTERNAL MODULE: ./node_modules/rememo/es/rememo.js
 var rememo = __webpack_require__("pPDe");
 
 // CONCATENATED MODULE: ./node_modules/@wordpress/rich-text/build-module/store/selectors.js
 /**
  * External dependencies
  */
 
 
 /**
  * Returns all the available format types.
  *
  * @param {Object} state Data state.
  *
  * @return {Array} Format types.
  */
 
 const getFormatTypes = Object(rememo["a" /* default */])(state => Object.values(state.formatTypes), state => [state.formatTypes]);
 /**
  * Returns a format type by name.
  *
  * @param {Object} state Data state.
  * @param {string} name Format type name.
  *
  * @return {Object?} Format type.
  */
 
 function getFormatType(state, name) {
   return state.formatTypes[name];
 }
 /**
  * Gets the format type, if any, that can handle a bare element (without a
  * data-format-type attribute), given the tag name of this element.
  *
  * @param {Object} state              Data state.
  * @param {string} bareElementTagName The tag name of the element to find a
  *                                    format type for.
  * @return {?Object} Format type.
  */
 
 function getFormatTypeForBareElement(state, bareElementTagName) {
   return Object(external_lodash_["find"])(getFormatTypes(state), ({
     className,
     tagName
   }) => {
     return className === null && bareElementTagName === tagName;
   });
 }
 /**
  * Gets the format type, if any, that can handle an element, given its classes.
  *
  * @param {Object} state            Data state.
  * @param {string} elementClassName The classes of the element to find a format
  *                                  type for.
  * @return {?Object} Format type.
  */
 
 function getFormatTypeForClassName(state, elementClassName) {
   return Object(external_lodash_["find"])(getFormatTypes(state), ({
     className
   }) => {
     if (className === null) {
       return false;
     }
 
     return ` ${elementClassName} `.indexOf(` ${className} `) >= 0;
   });
 }
 
 // CONCATENATED MODULE: ./node_modules/@wordpress/rich-text/build-module/store/actions.js
 /**
  * External dependencies
  */
 
 /**
  * Returns an action object used in signalling that format types have been
  * added.
  *
  * @param {Array|Object} formatTypes Format types received.
  *
  * @return {Object} Action object.
  */
 
 function addFormatTypes(formatTypes) {
   return {
     type: 'ADD_FORMAT_TYPES',
     formatTypes: Object(external_lodash_["castArray"])(formatTypes)
   };
 }
 /**
  * Returns an action object used to remove a registered format type.
  *
  * @param {string|Array} names Format name.
  *
  * @return {Object} Action object.
  */
 
 function removeFormatTypes(names) {
   return {
     type: 'REMOVE_FORMAT_TYPES',
     names: Object(external_lodash_["castArray"])(names)
   };
 }
 
 // CONCATENATED MODULE: ./node_modules/@wordpress/rich-text/build-module/store/index.js
 /**
  * WordPress dependencies
  */
 
 /**
  * Internal dependencies
  */
 
 
 
 
 const STORE_NAME = 'core/rich-text';
 /**
  * Store definition for the rich-text namespace.
  *
  * @see https://github.com/WordPress/gutenberg/blob/HEAD/packages/data/README.md#createReduxStore
  *
  * @type {Object}
  */
 
 const store = Object(external_wp_data_["createReduxStore"])(STORE_NAME, {
   reducer: reducer,
   selectors: selectors_namespaceObject,
   actions: actions_namespaceObject
 });
 Object(external_wp_data_["register"])(store);
 
 // CONCATENATED MODULE: ./node_modules/@wordpress/rich-text/build-module/is-format-equal.js
 /** @typedef {import('./create').RichTextFormat} RichTextFormat */
 
 /**
  * Optimised equality check for format objects.
  *
  * @param {?RichTextFormat} format1 Format to compare.
  * @param {?RichTextFormat} format2 Format to compare.
  *
  * @return {boolean} True if formats are equal, false if not.
  */
 function isFormatEqual(format1, format2) {
   // Both not defined.
   if (format1 === format2) {
     return true;
   } // Either not defined.
 
 
   if (!format1 || !format2) {
     return false;
   }
 
   if (format1.type !== format2.type) {
     return false;
   }
 
   const attributes1 = format1.attributes;
   const attributes2 = format2.attributes; // Both not defined.
 
   if (attributes1 === attributes2) {
     return true;
   } // Either not defined.
 
 
   if (!attributes1 || !attributes2) {
     return false;
   }
 
   const keys1 = Object.keys(attributes1);
   const keys2 = Object.keys(attributes2);
 
   if (keys1.length !== keys2.length) {
     return false;
   }
 
   const length = keys1.length; // Optimise for speed.
 
   for (let i = 0; i < length; i++) {
     const name = keys1[i];
 
     if (attributes1[name] !== attributes2[name]) {
       return false;
     }
   }
 
   return true;
 }
 
 // CONCATENATED MODULE: ./node_modules/@wordpress/rich-text/build-module/normalise-formats.js
 /**
  * Internal dependencies
  */
 
 /** @typedef {import('./create').RichTextValue} RichTextValue */
 
 /**
  * Normalises formats: ensures subsequent adjacent equal formats have the same
  * reference.
  *
  * @param {RichTextValue} value Value to normalise formats of.
  *
  * @return {RichTextValue} New value with normalised formats.
  */
 
 function normaliseFormats(value) {
   const newFormats = value.formats.slice();
   newFormats.forEach((formatsAtIndex, index) => {
     const formatsAtPreviousIndex = newFormats[index - 1];
 
     if (formatsAtPreviousIndex) {
       const newFormatsAtIndex = formatsAtIndex.slice();
       newFormatsAtIndex.forEach((format, formatIndex) => {
         const previousFormat = formatsAtPreviousIndex[formatIndex];
 
         if (isFormatEqual(format, previousFormat)) {
           newFormatsAtIndex[formatIndex] = previousFormat;
         }
       });
       newFormats[index] = newFormatsAtIndex;
     }
   });
   return { ...value,
     formats: newFormats
   };
 }
 
 // CONCATENATED MODULE: ./node_modules/@wordpress/rich-text/build-module/apply-format.js
 /**
  * External dependencies
  */
 
 /**
  * Internal dependencies
  */
 
 
 /** @typedef {import('./create').RichTextValue} RichTextValue */
 
 /** @typedef {import('./create').RichTextFormat} RichTextFormat */
 
 function replace(array, index, value) {
   array = array.slice();
   array[index] = value;
   return array;
 }
 /**
  * Apply a format object to a Rich Text value from the given `startIndex` to the
  * given `endIndex`. Indices are retrieved from the selection if none are
  * provided.
  *
  * @param {RichTextValue}  value        Value to modify.
  * @param {RichTextFormat} format       Format to apply.
  * @param {number}         [startIndex] Start index.
  * @param {number}         [endIndex]   End index.
  *
  * @return {RichTextValue} A new value with the format applied.
  */
 
 
 function applyFormat(value, format, startIndex = value.start, endIndex = value.end) {
   const {
     formats,
     activeFormats
   } = value;
   const newFormats = formats.slice(); // The selection is collapsed.
 
   if (startIndex === endIndex) {
     const startFormat = Object(external_lodash_["find"])(newFormats[startIndex], {
       type: format.type
     }); // If the caret is at a format of the same type, expand start and end to
     // the edges of the format. This is useful to apply new attributes.
 
     if (startFormat) {
       const index = newFormats[startIndex].indexOf(startFormat);
 
       while (newFormats[startIndex] && newFormats[startIndex][index] === startFormat) {
         newFormats[startIndex] = replace(newFormats[startIndex], index, format);
         startIndex--;
       }
 
       endIndex++;
 
       while (newFormats[endIndex] && newFormats[endIndex][index] === startFormat) {
         newFormats[endIndex] = replace(newFormats[endIndex], index, format);
         endIndex++;
       }
     }
   } else {
     // Determine the highest position the new format can be inserted at.
     let position = +Infinity;
 
     for (let index = startIndex; index < endIndex; index++) {
       if (newFormats[index]) {
         newFormats[index] = newFormats[index].filter(({
           type
         }) => type !== format.type);
         const length = newFormats[index].length;
 
         if (length < position) {
           position = length;
         }
       } else {
         newFormats[index] = [];
         position = 0;
       }
     }
 
     for (let index = startIndex; index < endIndex; index++) {
       newFormats[index].splice(position, 0, format);
     }
   }
 
   return normaliseFormats({ ...value,
     formats: newFormats,
     // Always revise active formats. This serves as a placeholder for new
     // inputs with the format so new input appears with the format applied,
     // and ensures a format of the same type uses the latest values.
     activeFormats: [...Object(external_lodash_["reject"])(activeFormats, {
       type: format.type
     }), format]
   });
 }
 
 // CONCATENATED MODULE: ./node_modules/@wordpress/rich-text/build-module/create-element.js
 /**
  * Parse the given HTML into a body element.
  *
  * Note: The current implementation will return a shared reference, reset on
  * each call to `createElement`. Therefore, you should not hold a reference to
  * the value to operate upon asynchronously, as it may have unexpected results.
  *
  * @param {HTMLDocument} document The HTML document to use to parse.
  * @param {string}       html     The HTML to parse.
  *
  * @return {HTMLBodyElement} Body element with parsed HTML.
  */
 function createElement({
   implementation
 }, html) {
   // Because `createHTMLDocument` is an expensive operation, and with this
   // function being internal to `rich-text` (full control in avoiding a risk
   // of asynchronous operations on the shared reference), a single document
   // is reused and reset for each call to the function.
   if (!createElement.body) {
     createElement.body = implementation.createHTMLDocument('').body;
   }
 
   createElement.body.innerHTML = html;
   return createElement.body;
 }
 
 // CONCATENATED MODULE: ./node_modules/@wordpress/rich-text/build-module/special-characters.js
 /**
  * Line separator character, used for multiline text.
  */
 const LINE_SEPARATOR = '\u2028';
 /**
  * Object replacement character, used as a placeholder for objects.
  */
 
 const OBJECT_REPLACEMENT_CHARACTER = '\ufffc';
 /**
  * Zero width non-breaking space, used as padding in the editable DOM tree when
  * it is empty otherwise.
  */
 
 const ZWNBSP = '\ufeff';
 
 // CONCATENATED MODULE: ./node_modules/@wordpress/rich-text/build-module/create.js
 /**
  * WordPress dependencies
  */
 
 /**
  * Internal dependencies
  */
 
 
 
 
 
 /**
  * @typedef {Object} RichTextFormat
  *
  * @property {string} type Format type.
  */
 
 /**
  * @typedef {Array<RichTextFormat>} RichTextFormatList
  */
 
 /**
  * @typedef {Object} RichTextValue
  *
  * @property {string}                    text         Text.
  * @property {Array<RichTextFormatList>} formats      Formats.
  * @property {Array<RichTextFormat>}     replacements Replacements.
  * @property {number|undefined}          start        Selection start.
  * @property {number|undefined}          end          Selection end.
  */
 
 function createEmptyValue() {
   return {
     formats: [],
     replacements: [],
     text: ''
   };
 }
 
 function simpleFindKey(object, value) {
   for (const key in object) {
     if (object[key] === value) {
       return key;
     }
   }
 }
 
 function toFormat({
   type,
   attributes
 }) {
   let formatType;
 
   if (attributes && attributes.class) {
     formatType = Object(external_wp_data_["select"])('core/rich-text').getFormatTypeForClassName(attributes.class);
 
     if (formatType) {
       // Preserve any additional classes.
       attributes.class = ` ${attributes.class} `.replace(` ${formatType.className} `, ' ').trim();
 
       if (!attributes.class) {
         delete attributes.class;
       }
     }
   }
 
   if (!formatType) {
     formatType = Object(external_wp_data_["select"])('core/rich-text').getFormatTypeForBareElement(type);
   }
 
   if (!formatType) {
     return attributes ? {
       type,
       attributes
     } : {
       type
     };
   }
 
   if (formatType.__experimentalCreatePrepareEditableTree && !formatType.__experimentalCreateOnChangeEditableValue) {
     return null;
   }
 
   if (!attributes) {
     return {
       type: formatType.name
     };
   }
 
   const registeredAttributes = {};
   const unregisteredAttributes = {};
 
   for (const name in attributes) {
     const key = simpleFindKey(formatType.attributes, name);
 
     if (key) {
       registeredAttributes[key] = attributes[name];
     } else {
       unregisteredAttributes[name] = attributes[name];
     }
   }
 
   return {
     type: formatType.name,
     attributes: registeredAttributes,
     unregisteredAttributes
   };
 }
 /**
  * Create a RichText value from an `Element` tree (DOM), an HTML string or a
  * plain text string, with optionally a `Range` object to set the selection. If
  * called without any input, an empty value will be created. If
  * `multilineTag` is provided, any content of direct children whose type matches
  * `multilineTag` will be separated by two newlines. The optional functions can
  * be used to filter out content.
  *
  * A value will have the following shape, which you are strongly encouraged not
  * to modify without the use of helper functions:
  *
  * ```js
  * {
  *   text: string,
  *   formats: Array,
  *   replacements: Array,
  *   ?start: number,
  *   ?end: number,
  * }
  * ```
  *
  * As you can see, text and formatting are separated. `text` holds the text,
  * including any replacement characters for objects and lines. `formats`,
  * `objects` and `lines` are all sparse arrays of the same length as `text`. It
  * holds information about the formatting at the relevant text indices. Finally
  * `start` and `end` state which text indices are selected. They are only
  * provided if a `Range` was given.
  *
  * @param {Object}  [$1]                      Optional named arguments.
  * @param {Element} [$1.element]              Element to create value from.
  * @param {string}  [$1.text]                 Text to create value from.
  * @param {string}  [$1.html]                 HTML to create value from.
  * @param {Range}   [$1.range]                Range to create value from.
  * @param {string}  [$1.multilineTag]         Multiline tag if the structure is
  *                                            multiline.
  * @param {Array}   [$1.multilineWrapperTags] Tags where lines can be found if
  *                                            nesting is possible.
  * @param {boolean} [$1.preserveWhiteSpace]   Whether or not to collapse white
  *                                            space characters.
  * @param {boolean} [$1.__unstableIsEditableTree]
  *
  * @return {RichTextValue} A rich text value.
  */
 
 
 function create({
   element,
   text,
   html,
   range,
   multilineTag,
   multilineWrapperTags,
   __unstableIsEditableTree: isEditableTree,
   preserveWhiteSpace
 } = {}) {
   if (typeof text === 'string' && text.length > 0) {
     return {
       formats: Array(text.length),
       replacements: Array(text.length),
       text
     };
   }
 
   if (typeof html === 'string' && html.length > 0) {
     // It does not matter which document this is, we're just using it to
     // parse.
     element = createElement(document, html);
   }
 
   if (typeof element !== 'object') {
     return createEmptyValue();
   }
 
   if (!multilineTag) {
     return createFromElement({
       element,
       range,
       isEditableTree,
       preserveWhiteSpace
     });
   }
 
   return createFromMultilineElement({
     element,
     range,
     multilineTag,
     multilineWrapperTags,
     isEditableTree,
     preserveWhiteSpace
   });
 }
 /**
  * Helper to accumulate the value's selection start and end from the current
  * node and range.
  *
  * @param {Object} accumulator Object to accumulate into.
  * @param {Node}   node        Node to create value with.
  * @param {Range}  range       Range to create value with.
  * @param {Object} value       Value that is being accumulated.
  */
 
 function accumulateSelection(accumulator, node, range, value) {
   if (!range) {
     return;
   }
 
   const {
     parentNode
   } = node;
   const {
     startContainer,
     startOffset,
     endContainer,
     endOffset
   } = range;
   const currentLength = accumulator.text.length; // Selection can be extracted from value.
 
   if (value.start !== undefined) {
     accumulator.start = currentLength + value.start; // Range indicates that the current node has selection.
   } else if (node === startContainer && node.nodeType === node.TEXT_NODE) {
     accumulator.start = currentLength + startOffset; // Range indicates that the current node is selected.
   } else if (parentNode === startContainer && node === startContainer.childNodes[startOffset]) {
     accumulator.start = currentLength; // Range indicates that the selection is after the current node.
   } else if (parentNode === startContainer && node === startContainer.childNodes[startOffset - 1]) {
     accumulator.start = currentLength + value.text.length; // Fallback if no child inside handled the selection.
   } else if (node === startContainer) {
     accumulator.start = currentLength;
   } // Selection can be extracted from value.
 
 
   if (value.end !== undefined) {
     accumulator.end = currentLength + value.end; // Range indicates that the current node has selection.
   } else if (node === endContainer && node.nodeType === node.TEXT_NODE) {
     accumulator.end = currentLength + endOffset; // Range indicates that the current node is selected.
   } else if (parentNode === endContainer && node === endContainer.childNodes[endOffset - 1]) {
     accumulator.end = currentLength + value.text.length; // Range indicates that the selection is before the current node.
   } else if (parentNode === endContainer && node === endContainer.childNodes[endOffset]) {
     accumulator.end = currentLength; // Fallback if no child inside handled the selection.
   } else if (node === endContainer) {
     accumulator.end = currentLength + endOffset;
   }
 }
 /**
  * Adjusts the start and end offsets from a range based on a text filter.
  *
  * @param {Node}     node   Node of which the text should be filtered.
  * @param {Range}    range  The range to filter.
  * @param {Function} filter Function to use to filter the text.
  *
  * @return {Object|void} Object containing range properties.
  */
 
 
 function filterRange(node, range, filter) {
   if (!range) {
     return;
   }
 
   const {
     startContainer,
     endContainer
   } = range;
   let {
     startOffset,
     endOffset
   } = range;
 
   if (node === startContainer) {
     startOffset = filter(node.nodeValue.slice(0, startOffset)).length;
   }
 
   if (node === endContainer) {
     endOffset = filter(node.nodeValue.slice(0, endOffset)).length;
   }
 
   return {
     startContainer,
     startOffset,
     endContainer,
     endOffset
   };
 }
 /**
  * Collapse any whitespace used for HTML formatting to one space character,
  * because it will also be displayed as such by the browser.
  *
  * @param {string} string
  */
 
 
 function collapseWhiteSpace(string) {
   return string.replace(/[\n\r\t]+/g, ' ');
 }
 
 const ZWNBSPRegExp = new RegExp(ZWNBSP, 'g');
 /**
  * Removes padding (zero width non breaking spaces) added by `toTree`.
  *
  * @param {string} string
  */
 
 function removePadding(string) {
   return string.replace(ZWNBSPRegExp, '');
 }
 /**
  * Creates a Rich Text value from a DOM element and range.
  *
  * @param {Object}  $1                        Named argements.
  * @param {Element} [$1.element]              Element to create value from.
  * @param {Range}   [$1.range]                Range to create value from.
  * @param {string}  [$1.multilineTag]         Multiline tag if the structure is
  *                                            multiline.
  * @param {Array}   [$1.multilineWrapperTags] Tags where lines can be found if
  *                                            nesting is possible.
  * @param {boolean} [$1.preserveWhiteSpace]   Whether or not to collapse white
  *                                            space characters.
  * @param {Array}   [$1.currentWrapperTags]
  * @param {boolean} [$1.isEditableTree]
  *
  * @return {RichTextValue} A rich text value.
  */
 
 
 function createFromElement({
   element,
   range,
   multilineTag,
   multilineWrapperTags,
   currentWrapperTags = [],
   isEditableTree,
   preserveWhiteSpace
 }) {
   const accumulator = createEmptyValue();
 
   if (!element) {
     return accumulator;
   }
 
   if (!element.hasChildNodes()) {
     accumulateSelection(accumulator, element, range, createEmptyValue());
     return accumulator;
   }
 
   const length = element.childNodes.length; // Optimise for speed.
 
   for (let index = 0; index < length; index++) {
     const node = element.childNodes[index];
     const type = node.nodeName.toLowerCase();
 
     if (node.nodeType === node.TEXT_NODE) {
       let filter = removePadding;
 
       if (!preserveWhiteSpace) {
         filter = string => removePadding(collapseWhiteSpace(string));
       }
 
       const text = filter(node.nodeValue);
       range = filterRange(node, range, filter);
       accumulateSelection(accumulator, node, range, {
         text
       }); // Create a sparse array of the same length as `text`, in which
       // formats can be added.
 
       accumulator.formats.length += text.length;
       accumulator.replacements.length += text.length;
       accumulator.text += text;
       continue;
     }
 
     if (node.nodeType !== node.ELEMENT_NODE) {
       continue;
     }
 
     if (isEditableTree && ( // Ignore any placeholders.
     node.getAttribute('data-rich-text-placeholder') || // Ignore any line breaks that are not inserted by us.
     type === 'br' && !node.getAttribute('data-rich-text-line-break'))) {
       accumulateSelection(accumulator, node, range, createEmptyValue());
       continue;
     }
 
     if (type === 'script') {
       const value = {
         formats: [,],
         replacements: [{
           type,
           attributes: {
             'data-rich-text-script': node.getAttribute('data-rich-text-script') || encodeURIComponent(node.innerHTML)
           }
         }],
         text: OBJECT_REPLACEMENT_CHARACTER
       };
       accumulateSelection(accumulator, node, range, value);
       mergePair(accumulator, value);
       continue;
     }
 
     if (type === 'br') {
       accumulateSelection(accumulator, node, range, createEmptyValue());
       mergePair(accumulator, create({
         text: '\n'
       }));
       continue;
     }
 
     const lastFormats = accumulator.formats[accumulator.formats.length - 1];
     const lastFormat = lastFormats && lastFormats[lastFormats.length - 1];
     const newFormat = toFormat({
       type,
       attributes: getAttributes({
         element: node
       })
     });
     const format = isFormatEqual(newFormat, lastFormat) ? lastFormat : newFormat;
 
     if (multilineWrapperTags && multilineWrapperTags.indexOf(type) !== -1) {
       const value = createFromMultilineElement({
         element: node,
         range,
         multilineTag,
         multilineWrapperTags,
         currentWrapperTags: [...currentWrapperTags, format],
         isEditableTree,
         preserveWhiteSpace
       });
       accumulateSelection(accumulator, node, range, value);
       mergePair(accumulator, value);
       continue;
     }
 
     const value = createFromElement({
       element: node,
       range,
       multilineTag,
       multilineWrapperTags,
       isEditableTree,
       preserveWhiteSpace
     });
     accumulateSelection(accumulator, node, range, value);
 
     if (!format) {
       mergePair(accumulator, value);
     } else if (value.text.length === 0) {
       if (format.attributes) {
         mergePair(accumulator, {
           formats: [,],
           replacements: [format],
           text: OBJECT_REPLACEMENT_CHARACTER
         });
       }
     } else {
       // Indices should share a reference to the same formats array.
       // Only create a new reference if `formats` changes.
       function mergeFormats(formats) {
         if (mergeFormats.formats === formats) {
           return mergeFormats.newFormats;
         }
 
         const newFormats = formats ? [format, ...formats] : [format];
         mergeFormats.formats = formats;
         mergeFormats.newFormats = newFormats;
         return newFormats;
       } // Since the formats parameter can be `undefined`, preset
       // `mergeFormats` with a new reference.
 
 
       mergeFormats.newFormats = [format];
       mergePair(accumulator, { ...value,
         formats: Array.from(value.formats, mergeFormats)
       });
     }
   }
 
   return accumulator;
 }
 /**
  * Creates a rich text value from a DOM element and range that should be
  * multiline.
  *
  * @param {Object}  $1                        Named argements.
  * @param {Element} [$1.element]              Element to create value from.
  * @param {Range}   [$1.range]                Range to create value from.
  * @param {string}  [$1.multilineTag]         Multiline tag if the structure is
  *                                            multiline.
  * @param {Array}   [$1.multilineWrapperTags] Tags where lines can be found if
  *                                            nesting is possible.
  * @param {boolean} [$1.currentWrapperTags]   Whether to prepend a line
  *                                            separator.
  * @param {boolean} [$1.preserveWhiteSpace]   Whether or not to collapse white
  *                                            space characters.
  * @param {boolean} [$1.isEditableTree]
  *
  * @return {RichTextValue} A rich text value.
  */
 
 
 function createFromMultilineElement({
   element,
   range,
   multilineTag,
   multilineWrapperTags,
   currentWrapperTags = [],
   isEditableTree,
   preserveWhiteSpace
 }) {
   const accumulator = createEmptyValue();
 
   if (!element || !element.hasChildNodes()) {
     return accumulator;
   }
 
   const length = element.children.length; // Optimise for speed.
 
   for (let index = 0; index < length; index++) {
     const node = element.children[index];
 
     if (node.nodeName.toLowerCase() !== multilineTag) {
       continue;
     }
 
     const value = createFromElement({
       element: node,
       range,
       multilineTag,
       multilineWrapperTags,
       currentWrapperTags,
       isEditableTree,
       preserveWhiteSpace
     }); // Multiline value text should be separated by a line separator.
 
     if (index !== 0 || currentWrapperTags.length > 0) {
       mergePair(accumulator, {
         formats: [,],
         replacements: currentWrapperTags.length > 0 ? [currentWrapperTags] : [,],
         text: LINE_SEPARATOR
       });
     }
 
     accumulateSelection(accumulator, node, range, value);
     mergePair(accumulator, value);
   }
 
   return accumulator;
 }
 /**
  * Gets the attributes of an element in object shape.
  *
  * @param {Object}  $1         Named argements.
  * @param {Element} $1.element Element to get attributes from.
  *
  * @return {Object|void} Attribute object or `undefined` if the element has no
  *                       attributes.
  */
 
 
 function getAttributes({
   element
 }) {
   if (!element.hasAttributes()) {
     return;
   }
 
   const length = element.attributes.length;
   let accumulator; // Optimise for speed.
 
   for (let i = 0; i < length; i++) {
     const {
       name,
       value
     } = element.attributes[i];
 
     if (name.indexOf('data-rich-text-') === 0) {
       continue;
     }
 
     const safeName = /^on/i.test(name) ? 'data-disable-rich-text-' + name : name;
     accumulator = accumulator || {};
     accumulator[safeName] = value;
   }
 
   return accumulator;
 }
 
 // CONCATENATED MODULE: ./node_modules/@wordpress/rich-text/build-module/concat.js
 /**
  * Internal dependencies
  */
 
 
 /** @typedef {import('./create').RichTextValue} RichTextValue */
 
 /**
  * Concats a pair of rich text values. Not that this mutates `a` and does NOT
  * normalise formats!
  *
  * @param {Object} a Value to mutate.
  * @param {Object} b Value to add read from.
  *
  * @return {Object} `a`, mutated.
  */
 
 function mergePair(a, b) {
   a.formats = a.formats.concat(b.formats);
   a.replacements = a.replacements.concat(b.replacements);
   a.text += b.text;
   return a;
 }
 /**
  * Combine all Rich Text values into one. This is similar to
  * `String.prototype.concat`.
  *
  * @param {...RichTextValue} values Objects to combine.
  *
  * @return {RichTextValue} A new value combining all given records.
  */
 
 function concat(...values) {
   return normaliseFormats(values.reduce(mergePair, create()));
 }
 
 // CONCATENATED MODULE: ./node_modules/@wordpress/rich-text/build-module/get-active-formats.js
 /** @typedef {import('./create').RichTextValue} RichTextValue */
 
 /** @typedef {import('./create').RichTextFormatList} RichTextFormatList */
 
 /**
  * Gets the all format objects at the start of the selection.
  *
  * @param {RichTextValue} value                Value to inspect.
  * @param {Array}         EMPTY_ACTIVE_FORMATS Array to return if there are no
  *                                             active formats.
  *
  * @return {RichTextFormatList} Active format objects.
  */
 function getActiveFormats({
   formats,
   start,
   end,
   activeFormats
 }, EMPTY_ACTIVE_FORMATS = []) {
   if (start === undefined) {
     return EMPTY_ACTIVE_FORMATS;
   }
 
   if (start === end) {
     // For a collapsed caret, it is possible to override the active formats.
     if (activeFormats) {
       return activeFormats;
     }
 
     const formatsBefore = formats[start - 1] || EMPTY_ACTIVE_FORMATS;
     const formatsAfter = formats[start] || EMPTY_ACTIVE_FORMATS; // By default, select the lowest amount of formats possible (which means
     // the caret is positioned outside the format boundary). The user can
     // then use arrow keys to define `activeFormats`.
 
     if (formatsBefore.length < formatsAfter.length) {
       return formatsBefore;
     }
 
     return formatsAfter;
   }
 
   return formats[start] || EMPTY_ACTIVE_FORMATS;
 }
 
 // CONCATENATED MODULE: ./node_modules/@wordpress/rich-text/build-module/get-active-format.js
 /**
  * External dependencies
  */
 
 /**
  * Internal dependencies
  */
 
 
 /** @typedef {import('./create').RichTextValue} RichTextValue */
 
 /** @typedef {import('./create').RichTextFormat} RichTextFormat */
 
 /**
  * Gets the format object by type at the start of the selection. This can be
  * used to get e.g. the URL of a link format at the current selection, but also
  * to check if a format is active at the selection. Returns undefined if there
  * is no format at the selection.
  *
  * @param {RichTextValue} value      Value to inspect.
  * @param {string}        formatType Format type to look for.
  *
  * @return {RichTextFormat|undefined} Active format object of the specified
  *                                    type, or undefined.
  */
 
 function getActiveFormat(value, formatType) {
   return Object(external_lodash_["find"])(getActiveFormats(value), {
     type: formatType
   });
 }
 
 // CONCATENATED MODULE: ./node_modules/@wordpress/rich-text/build-module/get-active-object.js
 /**
  * Internal dependencies
  */
 
 /** @typedef {import('./create').RichTextValue} RichTextValue */
 
 /** @typedef {import('./create').RichTextFormat} RichTextFormat */
 
 /**
  * Gets the active object, if there is any.
  *
  * @param {RichTextValue} value Value to inspect.
  *
  * @return {RichTextFormat|void} Active object, or undefined.
  */
 
 function getActiveObject({
   start,
   end,
   replacements,
   text
 }) {
   if (start + 1 !== end || text[start] !== OBJECT_REPLACEMENT_CHARACTER) {
     return;
   }
 
   return replacements[start];
 }
 
 // CONCATENATED MODULE: ./node_modules/@wordpress/rich-text/build-module/get-text-content.js
 /**
  * Internal dependencies
  */
 
 /** @typedef {import('./create').RichTextValue} RichTextValue */
 
 /**
  * Get the textual content of a Rich Text value. This is similar to
  * `Element.textContent`.
  *
  * @param {RichTextValue} value Value to use.
  *
  * @return {string} The text content.
  */
 
 function getTextContent({
   text
 }) {
   return text.replace(new RegExp(OBJECT_REPLACEMENT_CHARACTER, 'g'), '').replace(new RegExp(LINE_SEPARATOR, 'g'), '\n');
 }
 
 // CONCATENATED MODULE: ./node_modules/@wordpress/rich-text/build-module/get-line-index.js
 /**
  * Internal dependencies
  */
 
 /** @typedef {import('./create').RichTextValue} RichTextValue */
 
 /**
  * Gets the currently selected line index, or the first line index if the
  * selection spans over multiple items.
  *
  * @param {RichTextValue}  value      Value to get the line index from.
  * @param {boolean}        startIndex Optional index that should be contained by
  *                                    the line. Defaults to the selection start
  *                                    of the value.
  *
  * @return {number|void} The line index. Undefined if not found.
  */
 
 function getLineIndex({
   start,
   text
 }, startIndex = start) {
   let index = startIndex;
 
   while (index--) {
     if (text[index] === LINE_SEPARATOR) {
       return index;
     }
   }
 }
 
 // CONCATENATED MODULE: ./node_modules/@wordpress/rich-text/build-module/is-list-root-selected.js
 /**
  * Internal dependencies
  */
 
 /** @typedef {import('./create').RichTextValue} RichTextValue */
 
 /**
  * Whether or not the root list is selected.
  *
  * @param {RichTextValue} value The value to check.
  *
  * @return {boolean} True if the root list or nothing is selected, false if an
  *                   inner list is selected.
  */
 
 function isListRootSelected(value) {
   const {
     replacements,
     start
   } = value;
   const lineIndex = getLineIndex(value, start);
   const replacement = replacements[lineIndex];
   return !replacement || replacement.length < 1;
 }
 
 // CONCATENATED MODULE: ./node_modules/@wordpress/rich-text/build-module/is-active-list-type.js
 /**
  * Internal dependencies
  */
 
 /** @typedef {import('./create').RichTextValue} RichTextValue */
 
 /**
  * Whether or not the selected list has the given tag name.
  *
  * @param {RichTextValue} value    The value to check.
  * @param {string}        type     The tag name the list should have.
  * @param {string}        rootType The current root tag name, to compare with in
  *                                 case nothing is selected.
  *
  * @return {boolean} True if the current list type matches `type`, false if not.
  */
 
 function isActiveListType(value, type, rootType) {
   const {
     replacements,
     start
   } = value;
   const lineIndex = getLineIndex(value, start);
   const replacement = replacements[lineIndex];
 
   if (!replacement || replacement.length === 0) {
     return type === rootType;
   }
 
   const lastFormat = replacement[replacement.length - 1];
   return lastFormat.type === type;
 }
 
 // CONCATENATED MODULE: ./node_modules/@wordpress/rich-text/build-module/is-collapsed.js
 /** @typedef {import('./create').RichTextValue} RichTextValue */
 
 /**
  * Check if the selection of a Rich Text value is collapsed or not. Collapsed
  * means that no characters are selected, but there is a caret present. If there
  * is no selection, `undefined` will be returned. This is similar to
  * `window.getSelection().isCollapsed()`.
  *
  * @param {RichTextValue} value The rich text value to check.
  *
  * @return {boolean|undefined} True if the selection is collapsed, false if not,
  *                             undefined if there is no selection.
  */
 function isCollapsed({
   start,
   end
 }) {
   if (start === undefined || end === undefined) {
     return;
   }
 
   return start === end;
 }
 
 // CONCATENATED MODULE: ./node_modules/@wordpress/rich-text/build-module/is-empty.js
 /**
  * Internal dependencies
  */
 
 /** @typedef {import('./create').RichTextValue} RichTextValue */
 
 /**
  * Check if a Rich Text value is Empty, meaning it contains no text or any
  * objects (such as images).
  *
  * @param {RichTextValue} value Value to use.
  *
  * @return {boolean} True if the value is empty, false if not.
  */
 
 function isEmpty({
   text
 }) {
   return text.length === 0;
 }
 /**
  * Check if the current collapsed selection is on an empty line in case of a
  * multiline value.
  *
  * @param  {RichTextValue} value Value te check.
  *
  * @return {boolean} True if the line is empty, false if not.
  */
 
 function isEmptyLine({
   text,
   start,
   end
 }) {
   if (start !== end) {
     return false;
   }
 
   if (text.length === 0) {
     return true;
   }
 
   if (start === 0 && text.slice(0, 1) === LINE_SEPARATOR) {
     return true;
   }
 
   if (start === text.length && text.slice(-1) === LINE_SEPARATOR) {
     return true;
   }
 
   return text.slice(start - 1, end + 1) === `${LINE_SEPARATOR}${LINE_SEPARATOR}`;
 }
 
 // CONCATENATED MODULE: ./node_modules/@wordpress/rich-text/build-module/join.js
 /**
  * Internal dependencies
  */
 
 
 /** @typedef {import('./create').RichTextValue} RichTextValue */
 
 /**
  * Combine an array of Rich Text values into one, optionally separated by
  * `separator`, which can be a Rich Text value, HTML string, or plain text
  * string. This is similar to `Array.prototype.join`.
  *
  * @param {Array<RichTextValue>} values      An array of values to join.
  * @param {string|RichTextValue} [separator] Separator string or value.
  *
  * @return {RichTextValue} A new combined value.
  */
 
 function join(values, separator = '') {
   if (typeof separator === 'string') {
     separator = create({
       text: separator
     });
   }
 
   return normaliseFormats(values.reduce((accumlator, {
     formats,
     replacements,
     text
   }) => ({
     formats: accumlator.formats.concat(separator.formats, formats),
     replacements: accumlator.replacements.concat(separator.replacements, replacements),
     text: accumlator.text + separator.text + text
   })));
 }
 
 // CONCATENATED MODULE: ./node_modules/@wordpress/rich-text/build-module/register-format-type.js
 /**
  * WordPress dependencies
  */
 
 /**
  * Internal dependencies
  */
 
 
 /**
  * @typedef {Object} WPFormat
  *
  * @property {string}   name        A string identifying the format. Must be
  *                                  unique across all registered formats.
  * @property {string}   tagName     The HTML tag this format will wrap the
  *                                  selection with.
  * @property {string}   [className] A class to match the format.
  * @property {string}   title       Name of the format.
  * @property {Function} edit        Should return a component for the user to
  *                                  interact with the new registered format.
  */
 
 /**
  * Registers a new format provided a unique name and an object defining its
  * behavior.
  *
  * @param {string}   name                 Format name.
  * @param {WPFormat} settings             Format settings.
  *
  * @return {WPFormat|undefined} The format, if it has been successfully
  *                              registered; otherwise `undefined`.
  */
 
 function registerFormatType(name, settings) {
   settings = {
     name,
     ...settings
   };
 
   if (typeof settings.name !== 'string') {
     window.console.error('Format names must be strings.');
     return;
   }
 
   if (!/^[a-z][a-z0-9-]*\/[a-z][a-z0-9-]*$/.test(settings.name)) {
     window.console.error('Format names must contain a namespace prefix, include only lowercase alphanumeric characters or dashes, and start with a letter. Example: my-plugin/my-custom-format');
     return;
   }
 
   if (Object(external_wp_data_["select"])(store).getFormatType(settings.name)) {
     window.console.error('Format "' + settings.name + '" is already registered.');
     return;
   }
 
   if (typeof settings.tagName !== 'string' || settings.tagName === '') {
     window.console.error('Format tag names must be a string.');
     return;
   }
 
   if ((typeof settings.className !== 'string' || settings.className === '') && settings.className !== null) {
     window.console.error('Format class names must be a string, or null to handle bare elements.');
     return;
   }
 
   if (!/^[_a-zA-Z]+[a-zA-Z0-9-]*$/.test(settings.className)) {
     window.console.error('A class name must begin with a letter, followed by any number of hyphens, letters, or numbers.');
     return;
   }
 
   if (settings.className === null) {
     const formatTypeForBareElement = Object(external_wp_data_["select"])(store).getFormatTypeForBareElement(settings.tagName);
 
     if (formatTypeForBareElement) {
       window.console.error(`Format "${formatTypeForBareElement.name}" is already registered to handle bare tag name "${settings.tagName}".`);
       return;
     }
   } else {
     const formatTypeForClassName = Object(external_wp_data_["select"])(store).getFormatTypeForClassName(settings.className);
 
     if (formatTypeForClassName) {
       window.console.error(`Format "${formatTypeForClassName.name}" is already registered to handle class name "${settings.className}".`);
       return;
     }
   }
 
   if (!('title' in settings) || settings.title === '') {
     window.console.error('The format "' + settings.name + '" must have a title.');
     return;
   }
 
   if ('keywords' in settings && settings.keywords.length > 3) {
     window.console.error('The format "' + settings.name + '" can have a maximum of 3 keywords.');
     return;
   }
 
   if (typeof settings.title !== 'string') {
     window.console.error('Format titles must be strings.');
     return;
   }
 
   Object(external_wp_data_["dispatch"])(store).addFormatTypes(settings);
   return settings;
 }
 
 // CONCATENATED MODULE: ./node_modules/@wordpress/rich-text/build-module/remove-format.js
 /**
  * External dependencies
  */
 
 /**
  * Internal dependencies
  */
 
 
 /** @typedef {import('./create').RichTextValue} RichTextValue */
 
 /**
  * Remove any format object from a Rich Text value by type from the given
  * `startIndex` to the given `endIndex`. Indices are retrieved from the
  * selection if none are provided.
  *
  * @param {RichTextValue} value        Value to modify.
  * @param {string}        formatType   Format type to remove.
  * @param {number}        [startIndex] Start index.
  * @param {number}        [endIndex]   End index.
  *
  * @return {RichTextValue} A new value with the format applied.
  */
 
 function removeFormat(value, formatType, startIndex = value.start, endIndex = value.end) {
   const {
     formats,
     activeFormats
   } = value;
   const newFormats = formats.slice(); // If the selection is collapsed, expand start and end to the edges of the
   // format.
 
   if (startIndex === endIndex) {
     const format = Object(external_lodash_["find"])(newFormats[startIndex], {
       type: formatType
     });
 
     if (format) {
       while (Object(external_lodash_["find"])(newFormats[startIndex], format)) {
         filterFormats(newFormats, startIndex, formatType);
         startIndex--;
       }
 
       endIndex++;
 
       while (Object(external_lodash_["find"])(newFormats[endIndex], format)) {
         filterFormats(newFormats, endIndex, formatType);
         endIndex++;
       }
     }
   } else {
     for (let i = startIndex; i < endIndex; i++) {
       if (newFormats[i]) {
         filterFormats(newFormats, i, formatType);
       }
     }
   }
 
   return normaliseFormats({ ...value,
     formats: newFormats,
     activeFormats: Object(external_lodash_["reject"])(activeFormats, {
       type: formatType
     })
   });
 }
 
 function filterFormats(formats, index, formatType) {
   const newFormats = formats[index].filter(({
     type
   }) => type !== formatType);
 
   if (newFormats.length) {
     formats[index] = newFormats;
   } else {
     delete formats[index];
   }
 }
 
 // CONCATENATED MODULE: ./node_modules/@wordpress/rich-text/build-module/insert.js
 /**
  * Internal dependencies
  */
 
 
 /** @typedef {import('./create').RichTextValue} RichTextValue */
 
 /**
  * Insert a Rich Text value, an HTML string, or a plain text string, into a
  * Rich Text value at the given `startIndex`. Any content between `startIndex`
  * and `endIndex` will be removed. Indices are retrieved from the selection if
  * none are provided.
  *
  * @param {RichTextValue}        value         Value to modify.
  * @param {RichTextValue|string} valueToInsert Value to insert.
  * @param {number}               [startIndex]  Start index.
  * @param {number}               [endIndex]    End index.
  *
  * @return {RichTextValue} A new value with the value inserted.
  */
 
 function insert(value, valueToInsert, startIndex = value.start, endIndex = value.end) {
   const {
     formats,
     replacements,
     text
   } = value;
 
   if (typeof valueToInsert === 'string') {
     valueToInsert = create({
       text: valueToInsert
     });
   }
 
   const index = startIndex + valueToInsert.text.length;
   return normaliseFormats({
     formats: formats.slice(0, startIndex).concat(valueToInsert.formats, formats.slice(endIndex)),
     replacements: replacements.slice(0, startIndex).concat(valueToInsert.replacements, replacements.slice(endIndex)),
     text: text.slice(0, startIndex) + valueToInsert.text + text.slice(endIndex),
     start: index,
     end: index
   });
 }
 
 // CONCATENATED MODULE: ./node_modules/@wordpress/rich-text/build-module/remove.js
 /**
  * Internal dependencies
  */
 
 
 /** @typedef {import('./create').RichTextValue} RichTextValue */
 
 /**
  * Remove content from a Rich Text value between the given `startIndex` and
  * `endIndex`. Indices are retrieved from the selection if none are provided.
  *
  * @param {RichTextValue} value        Value to modify.
  * @param {number}        [startIndex] Start index.
  * @param {number}        [endIndex]   End index.
  *
  * @return {RichTextValue} A new value with the content removed.
  */
 
 function remove_remove(value, startIndex, endIndex) {
   return insert(value, create(), startIndex, endIndex);
 }
 
 // CONCATENATED MODULE: ./node_modules/@wordpress/rich-text/build-module/replace.js
 /**
  * Internal dependencies
  */
 
 /** @typedef {import('./create').RichTextValue} RichTextValue */
 
 /**
  * Search a Rich Text value and replace the match(es) with `replacement`. This
  * is similar to `String.prototype.replace`.
  *
  * @param {RichTextValue}  value        The value to modify.
  * @param {RegExp|string}  pattern      A RegExp object or literal. Can also be
  *                                      a string. It is treated as a verbatim
  *                                      string and is not interpreted as a
  *                                      regular expression. Only the first
  *                                      occurrence will be replaced.
  * @param {Function|string} replacement The match or matches are replaced with
  *                                      the specified or the value returned by
  *                                      the specified function.
  *
  * @return {RichTextValue} A new value with replacements applied.
  */
 
 function replace_replace({
   formats,
   replacements,
   text,
   start,
   end
 }, pattern, replacement) {
   text = text.replace(pattern, (match, ...rest) => {
     const offset = rest[rest.length - 2];
     let newText = replacement;
     let newFormats;
     let newReplacements;
 
     if (typeof newText === 'function') {
       newText = replacement(match, ...rest);
     }
 
     if (typeof newText === 'object') {
       newFormats = newText.formats;
       newReplacements = newText.replacements;
       newText = newText.text;
     } else {
       newFormats = Array(newText.length);
       newReplacements = Array(newText.length);
 
       if (formats[offset]) {
         newFormats = newFormats.fill(formats[offset]);
       }
     }
 
     formats = formats.slice(0, offset).concat(newFormats, formats.slice(offset + match.length));
     replacements = replacements.slice(0, offset).concat(newReplacements, replacements.slice(offset + match.length));
 
     if (start) {
       start = end = offset + newText.length;
     }
 
     return newText;
   });
   return normaliseFormats({
     formats,
     replacements,
     text,
     start,
     end
   });
 }
 
 // CONCATENATED MODULE: ./node_modules/@wordpress/rich-text/build-module/insert-line-separator.js
 /**
  * Internal dependencies
  */
 
 
 /** @typedef {import('./create').RichTextValue} RichTextValue */
 
 /**
  * Insert a line break character into a Rich Text value at the given
  * `startIndex`. Any content between `startIndex` and `endIndex` will be
  * removed. Indices are retrieved from the selection if none are provided.
  *
  * @param {RichTextValue} value        Value to modify.
  * @param {number}        [startIndex] Start index.
  * @param {number}        [endIndex]   End index.
  *
  * @return {RichTextValue} A new value with the value inserted.
  */
 
 function insertLineSeparator(value, startIndex = value.start, endIndex = value.end) {
   const beforeText = value.text.slice(0, startIndex);
   const previousLineSeparatorIndex = beforeText.lastIndexOf(LINE_SEPARATOR);
   const previousLineSeparatorFormats = value.replacements[previousLineSeparatorIndex];
   let replacements = [,];
 
   if (previousLineSeparatorFormats) {
     replacements = [previousLineSeparatorFormats];
   }
 
   const valueToInsert = {
     formats: [,],
     replacements,
     text: LINE_SEPARATOR
   };
   return insert(value, valueToInsert, startIndex, endIndex);
 }
 
 // CONCATENATED MODULE: ./node_modules/@wordpress/rich-text/build-module/remove-line-separator.js
 /**
  * Internal dependencies
  */
 
 
 
 /** @typedef {import('./create').RichTextValue} RichTextValue */
 
 /**
  * Removes a line separator character, if existing, from a Rich Text value at
  * the current indices. If no line separator exists on the indices it will
  * return undefined.
  *
  * @param {RichTextValue} value    Value to modify.
  * @param {boolean}       backward Indicates if are removing from the start
  *                                 index or the end index.
  *
  * @return {RichTextValue|undefined} A new value with the line separator
  *                                   removed. Or undefined if no line separator
  *                                   is found on the position.
  */
 
 function removeLineSeparator(value, backward = true) {
   const {
     replacements,
     text,
     start,
     end
   } = value;
   const collapsed = isCollapsed(value);
   let index = start - 1;
   let removeStart = collapsed ? start - 1 : start;
   let removeEnd = end;
 
   if (!backward) {
     index = end;
     removeStart = start;
     removeEnd = collapsed ? end + 1 : end;
   }
 
   if (text[index] !== LINE_SEPARATOR) {
     return;
   }
 
   let newValue; // If the line separator that is about te be removed
   // contains wrappers, remove the wrappers first.
 
   if (collapsed && replacements[index] && replacements[index].length) {
     const newReplacements = replacements.slice();
     newReplacements[index] = replacements[index].slice(0, -1);
     newValue = { ...value,
       replacements: newReplacements
     };
   } else {
     newValue = remove_remove(value, removeStart, removeEnd);
   }
 
   return newValue;
 }
 
 // CONCATENATED MODULE: ./node_modules/@wordpress/rich-text/build-module/insert-object.js
 /**
  * Internal dependencies
  */
 
 
 /** @typedef {import('./create').RichTextValue} RichTextValue */
 
 /** @typedef {import('./create').RichTextFormat} RichTextFormat */
 
 /**
  * Insert a format as an object into a Rich Text value at the given
  * `startIndex`. Any content between `startIndex` and `endIndex` will be
  * removed. Indices are retrieved from the selection if none are provided.
  *
  * @param {RichTextValue}  value          Value to modify.
  * @param {RichTextFormat} formatToInsert Format to insert as object.
  * @param {number}         [startIndex]   Start index.
  * @param {number}         [endIndex]     End index.
  *
  * @return {RichTextValue} A new value with the object inserted.
  */
 
 function insertObject(value, formatToInsert, startIndex, endIndex) {
   const valueToInsert = {
     formats: [,],
     replacements: [formatToInsert],
     text: OBJECT_REPLACEMENT_CHARACTER
   };
   return insert(value, valueToInsert, startIndex, endIndex);
 }
 
 // CONCATENATED MODULE: ./node_modules/@wordpress/rich-text/build-module/slice.js
 /** @typedef {import('./create').RichTextValue} RichTextValue */
 
 /**
  * Slice a Rich Text value from `startIndex` to `endIndex`. Indices are
  * retrieved from the selection if none are provided. This is similar to
  * `String.prototype.slice`.
  *
  * @param {RichTextValue} value        Value to modify.
  * @param {number}        [startIndex] Start index.
  * @param {number}        [endIndex]   End index.
  *
  * @return {RichTextValue} A new extracted value.
  */
 function slice(value, startIndex = value.start, endIndex = value.end) {
   const {
     formats,
     replacements,
     text
   } = value;
 
   if (startIndex === undefined || endIndex === undefined) {
     return { ...value
     };
   }
 
   return {
     formats: formats.slice(startIndex, endIndex),
     replacements: replacements.slice(startIndex, endIndex),
     text: text.slice(startIndex, endIndex)
   };
 }
 
 // CONCATENATED MODULE: ./node_modules/@wordpress/rich-text/build-module/split.js
 /**
  * Internal dependencies
  */
 
 /** @typedef {import('./create').RichTextValue} RichTextValue */
 
 /**
  * Split a Rich Text value in two at the given `startIndex` and `endIndex`, or
  * split at the given separator. This is similar to `String.prototype.split`.
  * Indices are retrieved from the selection if none are provided.
  *
  * @param {RichTextValue} value
  * @param {number|string} [string] Start index, or string at which to split.
  *
  * @return {Array<RichTextValue>|undefined} An array of new values.
  */
 
 function split({
   formats,
   replacements,
   text,
   start,
   end
 }, string) {
   if (typeof string !== 'string') {
     return splitAtSelection(...arguments);
   }
 
   let nextStart = 0;
   return text.split(string).map(substring => {
     const startIndex = nextStart;
     const value = {
       formats: formats.slice(startIndex, startIndex + substring.length),
       replacements: replacements.slice(startIndex, startIndex + substring.length),
       text: substring
     };
     nextStart += string.length + substring.length;
 
     if (start !== undefined && end !== undefined) {
       if (start >= startIndex && start < nextStart) {
         value.start = start - startIndex;
       } else if (start < startIndex && end > startIndex) {
         value.start = 0;
       }
 
       if (end >= startIndex && end < nextStart) {
         value.end = end - startIndex;
       } else if (start < nextStart && end > nextStart) {
         value.end = substring.length;
       }
     }
 
     return value;
   });
 }
 
 function splitAtSelection({
   formats,
   replacements,
   text,
   start,
   end
 }, startIndex = start, endIndex = end) {
   if (start === undefined || end === undefined) {
     return;
   }
 
   const before = {
     formats: formats.slice(0, startIndex),
     replacements: replacements.slice(0, startIndex),
     text: text.slice(0, startIndex)
   };
   const after = {
     formats: formats.slice(endIndex),
     replacements: replacements.slice(endIndex),
     text: text.slice(endIndex),
     start: 0,
     end: 0
   };
   return [// Ensure newlines are trimmed.
   replace_replace(before, /\u2028+$/, ''), replace_replace(after, /^\u2028+/, '')];
 }
 
 // CONCATENATED MODULE: ./node_modules/@wordpress/rich-text/build-module/get-format-type.js
 /**
  * WordPress dependencies
  */
 
 /**
  * Internal dependencies
  */
 
 
 /** @typedef {import('./register-format-type').RichTextFormatType} RichTextFormatType */
 
 /**
  * Returns a registered format type.
  *
  * @param {string} name Format name.
  *
  * @return {RichTextFormatType|undefined} Format type.
  */
 
 function get_format_type_getFormatType(name) {
   return Object(external_wp_data_["select"])(store).getFormatType(name);
 }
 
 // CONCATENATED MODULE: ./node_modules/@wordpress/rich-text/build-module/to-tree.js
 /**
  * Internal dependencies
  */
 
 
 
 
 function restoreOnAttributes(attributes, isEditableTree) {
   if (isEditableTree) {
     return attributes;
   }
 
   const newAttributes = {};
 
   for (const key in attributes) {
     let newKey = key;
 
     if (key.startsWith('data-disable-rich-text-')) {
       newKey = key.slice('data-disable-rich-text-'.length);
     }
 
     newAttributes[newKey] = attributes[key];
   }
 
   return newAttributes;
 }
 /**
  * Converts a format object to information that can be used to create an element
  * from (type, attributes and object).
  *
  * @param  {Object}  $1                        Named parameters.
  * @param  {string}  $1.type                   The format type.
  * @param  {Object}  $1.attributes             The format attributes.
  * @param  {Object}  $1.unregisteredAttributes The unregistered format
  *                                             attributes.
  * @param  {boolean} $1.object                 Whether or not it is an object
  *                                             format.
  * @param  {boolean} $1.boundaryClass          Whether or not to apply a boundary
  *                                             class.
  * @param  {boolean} $1.isEditableTree
  *
  * @return {Object}                            Information to be used for
  *                                             element creation.
  */
 
 
 function fromFormat({
   type,
   attributes,
   unregisteredAttributes,
   object,
   boundaryClass,
   isEditableTree
 }) {
   const formatType = get_format_type_getFormatType(type);
   let elementAttributes = {};
 
   if (boundaryClass) {
     elementAttributes['data-rich-text-format-boundary'] = 'true';
   }
 
   if (!formatType) {
     if (attributes) {
       elementAttributes = { ...attributes,
         ...elementAttributes
       };
     }
 
     return {
       type,
       attributes: restoreOnAttributes(elementAttributes, isEditableTree),
       object
     };
   }
 
   elementAttributes = { ...unregisteredAttributes,
     ...elementAttributes
   };
 
   for (const name in attributes) {
     const key = formatType.attributes ? formatType.attributes[name] : false;
 
     if (key) {
       elementAttributes[key] = attributes[name];
     } else {
       elementAttributes[name] = attributes[name];
     }
   }
 
   if (formatType.className) {
     if (elementAttributes.class) {
       elementAttributes.class = `${formatType.className} ${elementAttributes.class}`;
     } else {
       elementAttributes.class = formatType.className;
     }
   }
 
   return {
     type: formatType.tagName,
     object: formatType.object,
     attributes: restoreOnAttributes(elementAttributes, isEditableTree)
   };
 }
 /**
  * Checks if both arrays of formats up until a certain index are equal.
  *
  * @param {Array}  a     Array of formats to compare.
  * @param {Array}  b     Array of formats to compare.
  * @param {number} index Index to check until.
  */
 
 
 function isEqualUntil(a, b, index) {
   do {
     if (a[index] !== b[index]) {
       return false;
     }
   } while (index--);
 
   return true;
 }
 
 function toTree({
   value,
   multilineTag,
   preserveWhiteSpace,
   createEmpty,
   append,
   getLastChild,
   getParent,
   isText,
   getText,
   remove,
   appendText,
   onStartIndex,
   onEndIndex,
   isEditableTree,
   placeholder
 }) {
   const {
     formats,
     replacements,
     text,
     start,
     end
   } = value;
   const formatsLength = formats.length + 1;
   const tree = createEmpty();
   const multilineFormat = {
     type: multilineTag
   };
   const activeFormats = getActiveFormats(value);
   const deepestActiveFormat = activeFormats[activeFormats.length - 1];
   let lastSeparatorFormats;
   let lastCharacterFormats;
   let lastCharacter; // If we're building a multiline tree, start off with a multiline element.
 
   if (multilineTag) {
     append(append(tree, {
       type: multilineTag
     }), '');
     lastCharacterFormats = lastSeparatorFormats = [multilineFormat];
   } else {
     append(tree, '');
   }
 
   for (let i = 0; i < formatsLength; i++) {
     const character = text.charAt(i);
     const shouldInsertPadding = isEditableTree && ( // Pad the line if the line is empty.
     !lastCharacter || lastCharacter === LINE_SEPARATOR || // Pad the line if the previous character is a line break, otherwise
     // the line break won't be visible.
     lastCharacter === '\n');
     let characterFormats = formats[i]; // Set multiline tags in queue for building the tree.
 
     if (multilineTag) {
       if (character === LINE_SEPARATOR) {
         characterFormats = lastSeparatorFormats = (replacements[i] || []).reduce((accumulator, format) => {
           accumulator.push(format, multilineFormat);
           return accumulator;
         }, [multilineFormat]);
       } else {
         characterFormats = [...lastSeparatorFormats, ...(characterFormats || [])];
       }
     }
 
     let pointer = getLastChild(tree);
 
     if (shouldInsertPadding && character === LINE_SEPARATOR) {
       let node = pointer;
 
       while (!isText(node)) {
         node = getLastChild(node);
       }
 
       append(getParent(node), ZWNBSP);
     } // Set selection for the start of line.
 
 
     if (lastCharacter === LINE_SEPARATOR) {
       let node = pointer;
 
       while (!isText(node)) {
         node = getLastChild(node);
       }
 
       if (onStartIndex && start === i) {
         onStartIndex(tree, node);
       }
 
       if (onEndIndex && end === i) {
         onEndIndex(tree, node);
       }
     }
 
     if (characterFormats) {
       characterFormats.forEach((format, formatIndex) => {
         if (pointer && lastCharacterFormats && // Reuse the last element if all formats remain the same.
         isEqualUntil(characterFormats, lastCharacterFormats, formatIndex) && ( // Do not reuse the last element if the character is a
         // line separator.
         character !== LINE_SEPARATOR || characterFormats.length - 1 !== formatIndex)) {
           pointer = getLastChild(pointer);
           return;
         }
 
         const {
           type,
           attributes,
           unregisteredAttributes
         } = format;
         const boundaryClass = isEditableTree && character !== LINE_SEPARATOR && format === deepestActiveFormat;
         const parent = getParent(pointer);
         const newNode = append(parent, fromFormat({
           type,
           attributes,
           unregisteredAttributes,
           boundaryClass,
           isEditableTree
         }));
 
         if (isText(pointer) && getText(pointer).length === 0) {
           remove(pointer);
         }
 
         pointer = append(newNode, '');
       });
     } // No need for further processing if the character is a line separator.
 
 
     if (character === LINE_SEPARATOR) {
       lastCharacterFormats = characterFormats;
       lastCharacter = character;
       continue;
     } // If there is selection at 0, handle it before characters are inserted.
 
 
     if (i === 0) {
       if (onStartIndex && start === 0) {
         onStartIndex(tree, pointer);
       }
 
       if (onEndIndex && end === 0) {
         onEndIndex(tree, pointer);
       }
     }
 
     if (character === OBJECT_REPLACEMENT_CHARACTER) {
       if (!isEditableTree && replacements[i].type === 'script') {
         pointer = append(getParent(pointer), fromFormat({
           type: 'script',
           isEditableTree
         }));
         append(pointer, {
           html: decodeURIComponent(replacements[i].attributes['data-rich-text-script'])
         });
       } else {
         pointer = append(getParent(pointer), fromFormat({ ...replacements[i],
           object: true,
           isEditableTree
         }));
       } // Ensure pointer is text node.
 
 
       pointer = append(getParent(pointer), '');
     } else if (!preserveWhiteSpace && character === '\n') {
       pointer = append(getParent(pointer), {
         type: 'br',
         attributes: isEditableTree ? {
           'data-rich-text-line-break': 'true'
         } : undefined,
         object: true
       }); // Ensure pointer is text node.
 
       pointer = append(getParent(pointer), '');
     } else if (!isText(pointer)) {
       pointer = append(getParent(pointer), character);
     } else {
       appendText(pointer, character);
     }
 
     if (onStartIndex && start === i + 1) {
       onStartIndex(tree, pointer);
     }
 
     if (onEndIndex && end === i + 1) {
       onEndIndex(tree, pointer);
     }
 
     if (shouldInsertPadding && i === text.length) {
       append(getParent(pointer), ZWNBSP);
 
       if (placeholder && text.length === 0) {
         append(getParent(pointer), {
           type: 'span',
           attributes: {
             'data-rich-text-placeholder': placeholder,
             // Necessary to prevent the placeholder from catching
             // selection. The placeholder is also not editable after
             // all.
             contenteditable: 'false',
             style: 'pointer-events:none;user-select:none;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;'
           }
         });
       }
     }
 
     lastCharacterFormats = characterFormats;
     lastCharacter = character;
   }
 
   return tree;
 }
 
 // CONCATENATED MODULE: ./node_modules/@wordpress/rich-text/build-module/to-dom.js
 /**
  * Internal dependencies
  */
 
 
 /** @typedef {import('./create').RichTextValue} RichTextValue */
 
 /**
  * Creates a path as an array of indices from the given root node to the given
  * node.
  *
  * @param {Node}        node     Node to find the path of.
  * @param {HTMLElement} rootNode Root node to find the path from.
  * @param {Array}       path     Initial path to build on.
  *
  * @return {Array} The path from the root node to the node.
  */
 
 function createPathToNode(node, rootNode, path) {
   const parentNode = node.parentNode;
   let i = 0;
 
   while (node = node.previousSibling) {
     i++;
   }
 
   path = [i, ...path];
 
   if (parentNode !== rootNode) {
     path = createPathToNode(parentNode, rootNode, path);
   }
 
   return path;
 }
 /**
  * Gets a node given a path (array of indices) from the given node.
  *
  * @param {HTMLElement} node Root node to find the wanted node in.
  * @param {Array}       path Path (indices) to the wanted node.
  *
  * @return {Object} Object with the found node and the remaining offset (if any).
  */
 
 
 function getNodeByPath(node, path) {
   path = [...path];
 
   while (node && path.length > 1) {
     node = node.childNodes[path.shift()];
   }
 
   return {
     node,
     offset: path[0]
   };
 }
 
 function to_dom_append(element, child) {
   if (typeof child === 'string') {
     child = element.ownerDocument.createTextNode(child);
   }
 
   const {
     type,
     attributes
   } = child;
 
   if (type) {
     child = element.ownerDocument.createElement(type);
 
     for (const key in attributes) {
       child.setAttribute(key, attributes[key]);
     }
   }
 
   return element.appendChild(child);
 }
 
 function to_dom_appendText(node, text) {
   node.appendData(text);
 }
 
 function to_dom_getLastChild({
   lastChild
 }) {
   return lastChild;
 }
 
 function to_dom_getParent({
   parentNode
 }) {
   return parentNode;
 }
 
 function to_dom_isText(node) {
   return node.nodeType === node.TEXT_NODE;
 }
 
 function to_dom_getText({
   nodeValue
 }) {
   return nodeValue;
 }
 
 function to_dom_remove(node) {
   return node.parentNode.removeChild(node);
 }
 
 function toDom({
   value,
   multilineTag,
   prepareEditableTree,
   isEditableTree = true,
   placeholder,
   doc = document
 }) {
   let startPath = [];
   let endPath = [];
 
   if (prepareEditableTree) {
     value = { ...value,
       formats: prepareEditableTree(value)
     };
   }
   /**
    * Returns a new instance of a DOM tree upon which RichText operations can be
    * applied.
    *
    * Note: The current implementation will return a shared reference, reset on
    * each call to `createEmpty`. Therefore, you should not hold a reference to
    * the value to operate upon asynchronously, as it may have unexpected results.
    *
    * @return {Object} RichText tree.
    */
 
 
   const createEmpty = () => createElement(doc, '');
 
   const tree = toTree({
     value,
     multilineTag,
     createEmpty,
     append: to_dom_append,
     getLastChild: to_dom_getLastChild,
     getParent: to_dom_getParent,
     isText: to_dom_isText,
     getText: to_dom_getText,
     remove: to_dom_remove,
     appendText: to_dom_appendText,
 
     onStartIndex(body, pointer) {
       startPath = createPathToNode(pointer, body, [pointer.nodeValue.length]);
     },
 
     onEndIndex(body, pointer) {
       endPath = createPathToNode(pointer, body, [pointer.nodeValue.length]);
     },
 
     isEditableTree,
     placeholder
   });
   return {
     body: tree,
     selection: {
       startPath,
       endPath
     }
   };
 }
 /**
  * Create an `Element` tree from a Rich Text value and applies the difference to
  * the `Element` tree contained by `current`. If a `multilineTag` is provided,
  * text separated by two new lines will be wrapped in an `Element` of that type.
  *
  * @param {Object}        $1                       Named arguments.
  * @param {RichTextValue} $1.value                 Value to apply.
  * @param {HTMLElement}   $1.current               The live root node to apply the element tree to.
  * @param {string}        [$1.multilineTag]        Multiline tag.
  * @param {Function}      [$1.prepareEditableTree] Function to filter editorable formats.
  * @param {boolean}       [$1.__unstableDomOnly]   Only apply elements, no selection.
  * @param {string}        [$1.placeholder]         Placeholder text.
  */
 
 function apply({
   value,
   current,
   multilineTag,
   prepareEditableTree,
   __unstableDomOnly,
   placeholder
 }) {
   // Construct a new element tree in memory.
   const {
     body,
     selection
   } = toDom({
     value,
     multilineTag,
     prepareEditableTree,
     placeholder,
     doc: current.ownerDocument
   });
   applyValue(body, current);
 
   if (value.start !== undefined && !__unstableDomOnly) {
     applySelection(selection, current);
   }
 }
 function applyValue(future, current) {
   let i = 0;
   let futureChild;
 
   while (futureChild = future.firstChild) {
     const currentChild = current.childNodes[i];
 
     if (!currentChild) {
       current.appendChild(futureChild);
     } else if (!currentChild.isEqualNode(futureChild)) {
       if (currentChild.nodeName !== futureChild.nodeName || currentChild.nodeType === currentChild.TEXT_NODE && currentChild.data !== futureChild.data) {
         current.replaceChild(futureChild, currentChild);
       } else {
         const currentAttributes = currentChild.attributes;
         const futureAttributes = futureChild.attributes;
 
         if (currentAttributes) {
           let ii = currentAttributes.length; // Reverse loop because `removeAttribute` on `currentChild`
           // changes `currentAttributes`.
 
           while (ii--) {
             const {
               name
             } = currentAttributes[ii];
 
             if (!futureChild.getAttribute(name)) {
               currentChild.removeAttribute(name);
             }
           }
         }
 
         if (futureAttributes) {
           for (let ii = 0; ii < futureAttributes.length; ii++) {
             const {
               name,
               value
             } = futureAttributes[ii];
 
             if (currentChild.getAttribute(name) !== value) {
               currentChild.setAttribute(name, value);
             }
           }
         }
 
         applyValue(futureChild, currentChild);
         future.removeChild(futureChild);
       }
     } else {
       future.removeChild(futureChild);
     }
 
     i++;
   }
 
   while (current.childNodes[i]) {
     current.removeChild(current.childNodes[i]);
   }
 }
 /**
  * Returns true if two ranges are equal, or false otherwise. Ranges are
  * considered equal if their start and end occur in the same container and
  * offset.
  *
  * @param {Range} a First range object to test.
  * @param {Range} b First range object to test.
  *
  * @return {boolean} Whether the two ranges are equal.
  */
 
 function isRangeEqual(a, b) {
   return a.startContainer === b.startContainer && a.startOffset === b.startOffset && a.endContainer === b.endContainer && a.endOffset === b.endOffset;
 }
 
 function applySelection({
   startPath,
   endPath
 }, current) {
   const {
     node: startContainer,
     offset: startOffset
   } = getNodeByPath(current, startPath);
   const {
     node: endContainer,
     offset: endOffset
   } = getNodeByPath(current, endPath);
   const {
     ownerDocument
   } = current;
   const {
     defaultView
   } = ownerDocument;
   const selection = defaultView.getSelection();
   const range = ownerDocument.createRange();
   range.setStart(startContainer, startOffset);
   range.setEnd(endContainer, endOffset);
   const {
     activeElement
   } = ownerDocument;
 
   if (selection.rangeCount > 0) {
     // If the to be added range and the live range are the same, there's no
     // need to remove the live range and add the equivalent range.
     if (isRangeEqual(range, selection.getRangeAt(0))) {
       return;
     }
 
     selection.removeAllRanges();
   }
 
   selection.addRange(range); // This function is not intended to cause a shift in focus. Since the above
   // selection manipulations may shift focus, ensure that focus is restored to
   // its previous state.
 
   if (activeElement !== ownerDocument.activeElement) {
     // The `instanceof` checks protect against edge cases where the focused
     // element is not of the interface HTMLElement (does not have a `focus`
     // or `blur` property).
     //
     // See: https://github.com/Microsoft/TypeScript/issues/5901#issuecomment-431649653
     if (activeElement instanceof defaultView.HTMLElement) {
       activeElement.focus();
     }
   }
 }
 
 // EXTERNAL MODULE: external ["wp","escapeHtml"]
 var external_wp_escapeHtml_ = __webpack_require__("Vx3V");
 
 // CONCATENATED MODULE: ./node_modules/@wordpress/rich-text/build-module/to-html-string.js
 /**
  * WordPress dependencies
  */
 
 /**
  * Internal dependencies
  */
 
 
 /** @typedef {import('./create').RichTextValue} RichTextValue */
 
 /**
  * Create an HTML string from a Rich Text value. If a `multilineTag` is
  * provided, text separated by a line separator will be wrapped in it.
  *
  * @param {Object}        $1                      Named argements.
  * @param {RichTextValue} $1.value                Rich text value.
  * @param {string}        [$1.multilineTag]       Multiline tag.
  * @param {boolean}       [$1.preserveWhiteSpace] Whether or not to use newline
  *                                                characters for line breaks.
  *
  * @return {string} HTML string.
  */
 
 function toHTMLString({
   value,
   multilineTag,
   preserveWhiteSpace
 }) {
   const tree = toTree({
     value,
     multilineTag,
     preserveWhiteSpace,
     createEmpty: to_html_string_createEmpty,
     append: to_html_string_append,
     getLastChild: to_html_string_getLastChild,
     getParent: to_html_string_getParent,
     isText: to_html_string_isText,
     getText: to_html_string_getText,
     remove: to_html_string_remove,
     appendText: to_html_string_appendText
   });
   return createChildrenHTML(tree.children);
 }
 
 function to_html_string_createEmpty() {
   return {};
 }
 
 function to_html_string_getLastChild({
   children
 }) {
   return children && children[children.length - 1];
 }
 
 function to_html_string_append(parent, object) {
   if (typeof object === 'string') {
     object = {
       text: object
     };
   }
 
   object.parent = parent;
   parent.children = parent.children || [];
   parent.children.push(object);
   return object;
 }
 
 function to_html_string_appendText(object, text) {
   object.text += text;
 }
 
 function to_html_string_getParent({
   parent
 }) {
   return parent;
 }
 
 function to_html_string_isText({
   text
 }) {
   return typeof text === 'string';
 }
 
 function to_html_string_getText({
   text
 }) {
   return text;
 }
 
 function to_html_string_remove(object) {
   const index = object.parent.children.indexOf(object);
 
   if (index !== -1) {
     object.parent.children.splice(index, 1);
   }
 
   return object;
 }
 
 function createElementHTML({
   type,
   attributes,
   object,
   children
 }) {
   let attributeString = '';
 
   for (const key in attributes) {
     if (!Object(external_wp_escapeHtml_["isValidAttributeName"])(key)) {
       continue;
     }
 
     attributeString += ` ${key}="${Object(external_wp_escapeHtml_["escapeAttribute"])(attributes[key])}"`;
   }
 
   if (object) {
     return `<${type}${attributeString}>`;
   }
 
   return `<${type}${attributeString}>${createChildrenHTML(children)}</${type}>`;
 }
 
 function createChildrenHTML(children = []) {
   return children.map(child => {
     if (child.html !== undefined) {
       return child.html;
     }
 
     return child.text === undefined ? createElementHTML(child) : Object(external_wp_escapeHtml_["escapeEditableHTML"])(child.text);
   }).join('');
 }
 
 // CONCATENATED MODULE: ./node_modules/@wordpress/rich-text/build-module/toggle-format.js
 /**
  * Internal dependencies
  */
 
 
 
 /** @typedef {import('./create').RichTextValue} RichTextValue */
 
 /** @typedef {import('./create').RichTextFormat} RichTextFormat */
 
 /**
  * Toggles a format object to a Rich Text value at the current selection.
  *
  * @param {RichTextValue}  value  Value to modify.
  * @param {RichTextFormat} format Format to apply or remove.
  *
  * @return {RichTextValue} A new value with the format applied or removed.
  */
 
 function toggleFormat(value, format) {
   if (getActiveFormat(value, format.type)) {
     return removeFormat(value, format.type);
   }
 
   return applyFormat(value, format);
 }
 
 // CONCATENATED MODULE: ./node_modules/@wordpress/rich-text/build-module/unregister-format-type.js
 /**
  * WordPress dependencies
  */
 
 /**
  * Internal dependencies
  */
 
 
 /** @typedef {import('./register-format-type').RichTextFormatType} RichTextFormatType */
 
 /**
  * Unregisters a format.
  *
  * @param {string} name Format name.
  *
  * @return {RichTextFormatType|undefined} The previous format value, if it has
  *                                        been successfully unregistered;
  *                                        otherwise `undefined`.
  */
 
 function unregisterFormatType(name) {
   const oldFormat = Object(external_wp_data_["select"])(store).getFormatType(name);
 
   if (!oldFormat) {
     window.console.error(`Format ${name} is not registered.`);
     return;
   }
 
   Object(external_wp_data_["dispatch"])(store).removeFormatTypes(name);
   return oldFormat;
 }
 
 // CONCATENATED MODULE: ./node_modules/@wordpress/rich-text/build-module/can-indent-list-items.js
 /**
  * Internal dependencies
  */
 
 /** @typedef {import('./create').RichTextValue} RichTextValue */
 
 /**
  * Checks if the selected list item can be indented.
  *
  * @param {RichTextValue} value Value to check.
  *
  * @return {boolean} Whether or not the selected list item can be indented.
  */
 
 function canIndentListItems(value) {
   const lineIndex = getLineIndex(value); // There is only one line, so the line cannot be indented.
 
   if (lineIndex === undefined) {
     return false;
   }
 
   const {
     replacements
   } = value;
   const previousLineIndex = getLineIndex(value, lineIndex);
   const formatsAtLineIndex = replacements[lineIndex] || [];
   const formatsAtPreviousLineIndex = replacements[previousLineIndex] || []; // If the indentation of the current line is greater than previous line,
   // then the line cannot be furter indented.
 
   return formatsAtLineIndex.length <= formatsAtPreviousLineIndex.length;
 }
 
 // CONCATENATED MODULE: ./node_modules/@wordpress/rich-text/build-module/can-outdent-list-items.js
 /**
  * Internal dependencies
  */
 
 /** @typedef {import('./create').RichTextValue} RichTextValue */
 
 /**
  * Checks if the selected list item can be outdented.
  *
  * @param {RichTextValue} value Value to check.
  *
  * @return {boolean} Whether or not the selected list item can be outdented.
  */
 
 function canOutdentListItems(value) {
   const {
     replacements,
     start
   } = value;
   const startingLineIndex = getLineIndex(value, start);
   return replacements[startingLineIndex] !== undefined;
 }
 
 // CONCATENATED MODULE: ./node_modules/@wordpress/rich-text/build-module/indent-list-items.js
 /**
  * Internal dependencies
  */
 
 
 
 /** @typedef {import('./create').RichTextValue} RichTextValue */
 
 /** @typedef {import('./create').RichTextFormat} RichTextFormat */
 
 /**
  * Gets the line index of the first previous list item with higher indentation.
  *
  * @param {RichTextValue} value      Value to search.
  * @param {number}        lineIndex  Line index of the list item to compare
  *                                   with.
  *
  * @return {number|void} The line index.
  */
 
 function getTargetLevelLineIndex({
   text,
   replacements
 }, lineIndex) {
   const startFormats = replacements[lineIndex] || [];
   let index = lineIndex;
 
   while (index-- >= 0) {
     if (text[index] !== LINE_SEPARATOR) {
       continue;
     }
 
     const formatsAtIndex = replacements[index] || []; // Return the first line index that is one level higher. If the level is
     // lower or equal, there is no result.
 
     if (formatsAtIndex.length === startFormats.length + 1) {
       return index;
     } else if (formatsAtIndex.length <= startFormats.length) {
       return;
     }
   }
 }
 /**
  * Indents any selected list items if possible.
  *
  * @param {RichTextValue}  value      Value to change.
  * @param {RichTextFormat} rootFormat Root format.
  *
  * @return {RichTextValue} The changed value.
  */
 
 
 function indentListItems(value, rootFormat) {
   if (!canIndentListItems(value)) {
     return value;
   }
 
   const lineIndex = getLineIndex(value);
   const previousLineIndex = getLineIndex(value, lineIndex);
   const {
     text,
     replacements,
     end
   } = value;
   const newFormats = replacements.slice();
   const targetLevelLineIndex = getTargetLevelLineIndex(value, lineIndex);
 
   for (let index = lineIndex; index < end; index++) {
     if (text[index] !== LINE_SEPARATOR) {
       continue;
     } // Get the previous list, and if there's a child list, take over the
     // formats. If not, duplicate the last level and create a new level.
 
 
     if (targetLevelLineIndex) {
       const targetFormats = replacements[targetLevelLineIndex] || [];
       newFormats[index] = targetFormats.concat((newFormats[index] || []).slice(targetFormats.length - 1));
     } else {
       const targetFormats = replacements[previousLineIndex] || [];
       const lastformat = targetFormats[targetFormats.length - 1] || rootFormat;
       newFormats[index] = targetFormats.concat([lastformat], (newFormats[index] || []).slice(targetFormats.length));
     }
   }
 
   return { ...value,
     replacements: newFormats
   };
 }
 
 // CONCATENATED MODULE: ./node_modules/@wordpress/rich-text/build-module/get-parent-line-index.js
 /**
  * Internal dependencies
  */
 
 /** @typedef {import('./create').RichTextValue} RichTextValue */
 
 /**
  * Gets the index of the first parent list. To get the parent list formats, we
  * go through every list item until we find one with exactly one format type
  * less.
  *
  * @param {RichTextValue} value     Value to search.
  * @param {number}        lineIndex Line index of a child list item.
  *
  * @return {number|void} The parent list line index.
  */
 
 function getParentLineIndex({
   text,
   replacements
 }, lineIndex) {
   const startFormats = replacements[lineIndex] || [];
   let index = lineIndex;
 
   while (index-- >= 0) {
     if (text[index] !== LINE_SEPARATOR) {
       continue;
     }
 
     const formatsAtIndex = replacements[index] || [];
 
     if (formatsAtIndex.length === startFormats.length - 1) {
       return index;
     }
   }
 }
 
 // CONCATENATED MODULE: ./node_modules/@wordpress/rich-text/build-module/get-last-child-index.js
 /**
  * Internal dependencies
  */
 
 /** @typedef {import('./create').RichTextValue} RichTextValue */
 
 /**
  * Gets the line index of the last child in the list.
  *
  * @param {RichTextValue} value     Value to search.
  * @param {number}        lineIndex Line index of a list item in the list.
  *
  * @return {number} The index of the last child.
  */
 
 function getLastChildIndex({
   text,
   replacements
 }, lineIndex) {
   const lineFormats = replacements[lineIndex] || []; // Use the given line index in case there are no next children.
 
   let childIndex = lineIndex; // `lineIndex` could be `undefined` if it's the first line.
 
   for (let index = lineIndex || 0; index < text.length; index++) {
     // We're only interested in line indices.
     if (text[index] !== LINE_SEPARATOR) {
       continue;
     }
 
     const formatsAtIndex = replacements[index] || []; // If the amout of formats is equal or more, store it, then return the
     // last one if the amount of formats is less.
 
     if (formatsAtIndex.length >= lineFormats.length) {
       childIndex = index;
     } else {
       return childIndex;
     }
   } // If the end of the text is reached, return the last child index.
 
 
   return childIndex;
 }
 
 // CONCATENATED MODULE: ./node_modules/@wordpress/rich-text/build-module/outdent-list-items.js
 /**
  * Internal dependencies
  */
 
 
 
 
 
 /** @typedef {import('./create').RichTextValue} RichTextValue */
 
 /**
  * Outdents any selected list items if possible.
  *
  * @param {RichTextValue} value Value to change.
  *
  * @return {RichTextValue} The changed value.
  */
 
 function outdentListItems(value) {
   if (!canOutdentListItems(value)) {
     return value;
   }
 
   const {
     text,
     replacements,
     start,
     end
   } = value;
   const startingLineIndex = getLineIndex(value, start);
   const newFormats = replacements.slice(0);
   const parentFormats = replacements[getParentLineIndex(value, startingLineIndex)] || [];
   const endingLineIndex = getLineIndex(value, end);
   const lastChildIndex = getLastChildIndex(value, endingLineIndex); // Outdent all list items from the starting line index until the last child
   // index of the ending list. All children of the ending list need to be
   // outdented, otherwise they'll be orphaned.
 
   for (let index = startingLineIndex; index <= lastChildIndex; index++) {
     // Skip indices that are not line separators.
     if (text[index] !== LINE_SEPARATOR) {
       continue;
     } // In the case of level 0, the formats at the index are undefined.
 
 
     const currentFormats = newFormats[index] || []; // Omit the indentation level where the selection starts.
 
     newFormats[index] = parentFormats.concat(currentFormats.slice(parentFormats.length + 1));
 
     if (newFormats[index].length === 0) {
       delete newFormats[index];
     }
   }
 
   return { ...value,
     replacements: newFormats
   };
 }
 
 // CONCATENATED MODULE: ./node_modules/@wordpress/rich-text/build-module/change-list-type.js
 /**
  * Internal dependencies
  */
 
 
 
 /** @typedef {import('./create').RichTextValue} RichTextValue */
 
 /** @typedef {import('./create').RichTextFormat} RichTextFormat */
 
 /**
  * Changes the list type of the selected indented list, if any. Looks at the
  * currently selected list item and takes the parent list, then changes the list
  * type of this list. When multiple lines are selected, the parent lists are
  * takes and changed.
  *
  * @param {RichTextValue}  value     Value to change.
  * @param {RichTextFormat} newFormat The new list format object. Choose between
  *                                   `{ type: 'ol' }` and `{ type: 'ul' }`.
  *
  * @return {RichTextValue} The changed value.
  */
 
 function changeListType(value, newFormat) {
   const {
     text,
     replacements,
     start,
     end
   } = value;
   const startingLineIndex = getLineIndex(value, start);
   const startLineFormats = replacements[startingLineIndex] || [];
   const endLineFormats = replacements[getLineIndex(value, end)] || [];
   const startIndex = getParentLineIndex(value, startingLineIndex);
   const newReplacements = replacements.slice();
   const startCount = startLineFormats.length - 1;
   const endCount = endLineFormats.length - 1;
   let changed;
 
   for (let index = startIndex + 1 || 0; index < text.length; index++) {
     if (text[index] !== LINE_SEPARATOR) {
       continue;
     }
 
     if ((newReplacements[index] || []).length <= startCount) {
       break;
     }
 
     if (!newReplacements[index]) {
       continue;
     }
 
     changed = true;
     newReplacements[index] = newReplacements[index].map((format, i) => {
       return i < startCount || i > endCount ? format : newFormat;
     });
   }
 
   if (!changed) {
     return value;
   }
 
   return { ...value,
     replacements: newReplacements
   };
 }
 
 // EXTERNAL MODULE: external ["wp","element"]
 var external_wp_element_ = __webpack_require__("GRId");
 
 // CONCATENATED MODULE: ./node_modules/@wordpress/rich-text/build-module/component/use-anchor-ref.js
 /**
  * WordPress dependencies
  */
 
 /**
  * Internal dependencies
  */
 
 
 /** @typedef {import('@wordpress/element').RefObject} RefObject */
 
 /** @typedef {import('../register-format-type').RichTextFormatType} RichTextFormatType */
 
 /** @typedef {import('../create').RichTextValue} RichTextValue */
 
 /**
  * This hook, to be used in a format type's Edit component, returns the active
  * element that is formatted, or the selection range if no format is active.
  * The returned value is meant to be used for positioning UI, e.g. by passing it
  * to the `Popover` component.
  *
  * @param {Object}                 $1          Named parameters.
  * @param {RefObject<HTMLElement>} $1.ref      React ref of the element
  *                                             containing  the editable content.
  * @param {RichTextValue}          $1.value    Value to check for selection.
  * @param {RichTextFormatType}     $1.settings The format type's settings.
  *
  * @return {Element|Range} The active element or selection range.
  */
 
 function useAnchorRef({
   ref,
   value,
   settings = {}
 }) {
   const {
     tagName,
     className,
     name
   } = settings;
   const activeFormat = name ? getActiveFormat(value, name) : undefined;
   return Object(external_wp_element_["useMemo"])(() => {
     if (!ref.current) return;
     const {
       ownerDocument: {
         defaultView
       }
     } = ref.current;
     const selection = defaultView.getSelection();
 
     if (!selection.rangeCount) {
       return;
     }
 
     const range = selection.getRangeAt(0);
 
     if (!activeFormat) {
       return range;
     }
 
     let element = range.startContainer; // If the caret is right before the element, select the next element.
 
     element = element.nextElementSibling || element;
 
     while (element.nodeType !== element.ELEMENT_NODE) {
       element = element.parentNode;
     }
 
     return element.closest(tagName + (className ? '.' + className : ''));
   }, [activeFormat, value.start, value.end, tagName, className]);
 }
 
 // EXTERNAL MODULE: external ["wp","compose"]
 var external_wp_compose_ = __webpack_require__("K9lf");
 
 // CONCATENATED MODULE: ./node_modules/@wordpress/rich-text/build-module/component/use-default-style.js
 /**
  * WordPress dependencies
  */
 
 /**
  * In HTML, leading and trailing spaces are not visible, and multiple spaces
  * elsewhere are visually reduced to one space. This rule prevents spaces from
  * collapsing so all space is visible in the editor and can be removed. It also
  * prevents some browsers from inserting non-breaking spaces at the end of a
  * line to prevent the space from visually disappearing. Sometimes these non
  * breaking spaces can linger in the editor causing unwanted non breaking spaces
  * in between words. If also prevent Firefox from inserting a trailing `br` node
  * to visualise any trailing space, causing the element to be saved.
  *
  * > Authors are encouraged to set the 'white-space' property on editing hosts
  * > and on markup that was originally created through these editing mechanisms
  * > to the value 'pre-wrap'. Default HTML whitespace handling is not well
  * > suited to WYSIWYG editing, and line wrapping will not work correctly in
  * > some corner cases if 'white-space' is left at its default value.
  *
  * https://html.spec.whatwg.org/multipage/interaction.html#best-practices-for-in-page-editors
  *
  * @type {string}
  */
 
 const whiteSpace = 'pre-wrap';
 /**
  * A minimum width of 1px will prevent the rich text container from collapsing
  * to 0 width and hiding the caret. This is useful for inline containers.
  */
 
 const minWidth = '1px';
 function useDefaultStyle() {
   return Object(external_wp_element_["useCallback"])(element => {
     if (!element) return;
     element.style.whiteSpace = whiteSpace;
     element.style.minWidth = minWidth;
   }, []);
 }
 
 // CONCATENATED MODULE: ./node_modules/@wordpress/rich-text/build-module/component/use-boundary-style.js
 /**
  * WordPress dependencies
  */
 
 /*
  * Calculates and renders the format boundary style when the active formats
  * change.
  */
 
 function useBoundaryStyle({
   record
 }) {
   const ref = Object(external_wp_element_["useRef"])();
   const {
     activeFormats = []
   } = record.current;
   Object(external_wp_element_["useEffect"])(() => {
     // There's no need to recalculate the boundary styles if no formats are
     // active, because no boundary styles will be visible.
     if (!activeFormats || !activeFormats.length) {
       return;
     }
 
     const boundarySelector = '*[data-rich-text-format-boundary]';
     const element = ref.current.querySelector(boundarySelector);
 
     if (!element) {
       return;
     }
 
     const {
       ownerDocument
     } = element;
     const {
       defaultView
     } = ownerDocument;
     const computedStyle = defaultView.getComputedStyle(element);
     const newColor = computedStyle.color.replace(')', ', 0.2)').replace('rgb', 'rgba');
     const selector = `.rich-text:focus ${boundarySelector}`;
     const rule = `background-color: ${newColor}`;
     const style = `${selector} {${rule}}`;
     const globalStyleId = 'rich-text-boundary-style';
     let globalStyle = ownerDocument.getElementById(globalStyleId);
 
     if (!globalStyle) {
       globalStyle = ownerDocument.createElement('style');
       globalStyle.id = globalStyleId;
       ownerDocument.head.appendChild(globalStyle);
     }
 
     if (globalStyle.innerHTML !== style) {
       globalStyle.innerHTML = style;
     }
   }, [activeFormats]);
   return ref;
 }
 
 // CONCATENATED MODULE: ./node_modules/@wordpress/rich-text/build-module/component/use-inline-warning.js
 /**
  * WordPress dependencies
  */
 
 const message = 'RichText cannot be used with an inline container. Please use a different display property.';
 function useInlineWarning() {
   const ref = Object(external_wp_element_["useRef"])();
   Object(external_wp_element_["useEffect"])(() => {
     if (false) {}
   }, []);
   return ref;
 }
 
 // CONCATENATED MODULE: ./node_modules/@wordpress/rich-text/build-module/component/use-copy-handler.js
 /**
  * WordPress dependencies
  */
 
 
 /**
  * Internal dependencies
  */
 
 
 
 
 
 function useCopyHandler(props) {
   const propsRef = Object(external_wp_element_["useRef"])(props);
   propsRef.current = props;
   return Object(external_wp_compose_["useRefEffect"])(element => {
     function onCopy(event) {
       const {
         record,
         multilineTag,
         preserveWhiteSpace
       } = propsRef.current;
 
       if (isCollapsed(record.current) || !element.contains(element.ownerDocument.activeElement)) {
         return;
       }
 
       const selectedRecord = slice(record.current);
       const plainText = getTextContent(selectedRecord);
       const html = toHTMLString({
         value: selectedRecord,
         multilineTag,
         preserveWhiteSpace
       });
       event.clipboardData.setData('text/plain', plainText);
       event.clipboardData.setData('text/html', html);
       event.clipboardData.setData('rich-text', 'true');
       event.preventDefault();
     }
 
     element.addEventListener('copy', onCopy);
     return () => {
       element.removeEventListener('copy', onCopy);
     };
   }, []);
 }
 
 // EXTERNAL MODULE: external ["wp","keycodes"]
 var external_wp_keycodes_ = __webpack_require__("RxS6");
 
 // CONCATENATED MODULE: ./node_modules/@wordpress/rich-text/build-module/component/use-format-boundaries.js
 /**
  * WordPress dependencies
  */
 
 
 
 /**
  * Internal dependencies
  */
 
 
 const EMPTY_ACTIVE_FORMATS = [];
 function useFormatBoundaries(props) {
   const [, forceRender] = Object(external_wp_element_["useReducer"])(() => ({}));
   const propsRef = Object(external_wp_element_["useRef"])(props);
   propsRef.current = props;
   return Object(external_wp_compose_["useRefEffect"])(element => {
     function onKeyDown(event) {
       const {
         keyCode,
         shiftKey,
         altKey,
         metaKey,
         ctrlKey
       } = event;
 
       if ( // Only override left and right keys without modifiers pressed.
       shiftKey || altKey || metaKey || ctrlKey || keyCode !== external_wp_keycodes_["LEFT"] && keyCode !== external_wp_keycodes_["RIGHT"]) {
         return;
       }
 
       const {
         record,
         applyRecord
       } = propsRef.current;
       const {
         text,
         formats,
         start,
         end,
         activeFormats: currentActiveFormats = []
       } = record.current;
       const collapsed = isCollapsed(record.current);
       const {
         ownerDocument
       } = element;
       const {
         defaultView
       } = ownerDocument; // To do: ideally, we should look at visual position instead.
 
       const {
         direction
       } = defaultView.getComputedStyle(element);
       const reverseKey = direction === 'rtl' ? external_wp_keycodes_["RIGHT"] : external_wp_keycodes_["LEFT"];
       const isReverse = event.keyCode === reverseKey; // If the selection is collapsed and at the very start, do nothing if
       // navigating backward.
       // If the selection is collapsed and at the very end, do nothing if
       // navigating forward.
 
       if (collapsed && currentActiveFormats.length === 0) {
         if (start === 0 && isReverse) {
           return;
         }
 
         if (end === text.length && !isReverse) {
           return;
         }
       } // If the selection is not collapsed, let the browser handle collapsing
       // the selection for now. Later we could expand this logic to set
       // boundary positions if needed.
 
 
       if (!collapsed) {
         return;
       }
 
       const formatsBefore = formats[start - 1] || EMPTY_ACTIVE_FORMATS;
       const formatsAfter = formats[start] || EMPTY_ACTIVE_FORMATS;
       let newActiveFormatsLength = currentActiveFormats.length;
       let source = formatsAfter;
 
       if (formatsBefore.length > formatsAfter.length) {
         source = formatsBefore;
       } // If the amount of formats before the caret and after the caret is
       // different, the caret is at a format boundary.
 
 
       if (formatsBefore.length < formatsAfter.length) {
         if (!isReverse && currentActiveFormats.length < formatsAfter.length) {
           newActiveFormatsLength++;
         }
 
         if (isReverse && currentActiveFormats.length > formatsBefore.length) {
           newActiveFormatsLength--;
         }
       } else if (formatsBefore.length > formatsAfter.length) {
         if (!isReverse && currentActiveFormats.length > formatsAfter.length) {
           newActiveFormatsLength--;
         }
 
         if (isReverse && currentActiveFormats.length < formatsBefore.length) {
           newActiveFormatsLength++;
         }
       }
 
       if (newActiveFormatsLength === currentActiveFormats.length) {
         record.current._newActiveFormats = isReverse ? formatsBefore : formatsAfter;
         return;
       }
 
       event.preventDefault();
       const newActiveFormats = source.slice(0, newActiveFormatsLength);
       const newValue = { ...record.current,
         activeFormats: newActiveFormats
       };
       record.current = newValue;
       applyRecord(newValue);
       forceRender();
     }
 
     element.addEventListener('keydown', onKeyDown);
     return () => {
       element.removeEventListener('keydown', onKeyDown);
     };
   }, []);
 }
 
 // CONCATENATED MODULE: ./node_modules/@wordpress/rich-text/build-module/component/use-select-object.js
 /**
  * WordPress dependencies
  */
 
 function useSelectObject() {
   return Object(external_wp_compose_["useRefEffect"])(element => {
     function onClick(event) {
       const {
         target
       } = event; // If the child element has no text content, it must be an object.
 
       if (target === element || target.textContent) {
         return;
       }
 
       const {
         ownerDocument
       } = target;
       const {
         defaultView
       } = ownerDocument;
       const range = ownerDocument.createRange();
       const selection = defaultView.getSelection();
       range.selectNode(target);
       selection.removeAllRanges();
       selection.addRange(range);
     }
 
     element.addEventListener('click', onClick);
     return () => {
       element.removeEventListener('click', onClick);
     };
   }, []);
 }
 
 // CONCATENATED MODULE: ./node_modules/@wordpress/rich-text/build-module/component/use-indent-list-item-on-space.js
 /**
  * WordPress dependencies
  */
 
 
 
 /**
  * Internal dependencies
  */
 
 
 
 
 function useIndentListItemOnSpace(props) {
   const propsRef = Object(external_wp_element_["useRef"])(props);
   propsRef.current = props;
   return Object(external_wp_compose_["useRefEffect"])(element => {
     function onKeyDown(event) {
       const {
         keyCode,
         shiftKey,
         altKey,
         metaKey,
         ctrlKey
       } = event;
       const {
         multilineTag,
         createRecord,
         handleChange
       } = propsRef.current;
 
       if ( // Only override when no modifiers are pressed.
       shiftKey || altKey || metaKey || ctrlKey || keyCode !== external_wp_keycodes_["SPACE"] || multilineTag !== 'li') {
         return;
       }
 
       const currentValue = createRecord();
 
       if (!isCollapsed(currentValue)) {
         return;
       }
 
       const {
         text,
         start
       } = currentValue;
       const characterBefore = text[start - 1]; // The caret must be at the start of a line.
 
       if (characterBefore && characterBefore !== LINE_SEPARATOR) {
         return;
       }
 
       handleChange(indentListItems(currentValue, {
         type: element.tagName.toLowerCase()
       }));
       event.preventDefault();
     }
 
     element.addEventListener('keydown', onKeyDown);
     return () => {
       element.removeEventListener('keydown', onKeyDown);
     };
   }, []);
 }
 
 // CONCATENATED MODULE: ./node_modules/@wordpress/rich-text/build-module/update-formats.js
 /**
  * Internal dependencies
  */
 
 /** @typedef {import('./create').RichTextValue} RichTextValue */
 
 /**
  * Efficiently updates all the formats from `start` (including) until `end`
  * (excluding) with the active formats. Mutates `value`.
  *
  * @param  {Object}        $1         Named paramentes.
  * @param  {RichTextValue} $1.value   Value te update.
  * @param  {number}        $1.start   Index to update from.
  * @param  {number}        $1.end     Index to update until.
  * @param  {Array}         $1.formats Replacement formats.
  *
  * @return {RichTextValue} Mutated value.
  */
 
 function updateFormats({
   value,
   start,
   end,
   formats
 }) {
   const formatsBefore = value.formats[start - 1] || [];
   const formatsAfter = value.formats[end] || []; // First, fix the references. If any format right before or after are
   // equal, the replacement format should use the same reference.
 
   value.activeFormats = formats.map((format, index) => {
     if (formatsBefore[index]) {
       if (isFormatEqual(format, formatsBefore[index])) {
         return formatsBefore[index];
       }
     } else if (formatsAfter[index]) {
       if (isFormatEqual(format, formatsAfter[index])) {
         return formatsAfter[index];
       }
     }
 
     return format;
   });
 
   while (--end >= start) {
     if (value.activeFormats.length > 0) {
       value.formats[end] = value.activeFormats;
     } else {
       delete value.formats[end];
     }
   }
 
   return value;
 }
 
 // CONCATENATED MODULE: ./node_modules/@wordpress/rich-text/build-module/component/use-input-and-selection.js
 /**
  * WordPress dependencies
  */
 
 
 /**
  * Internal dependencies
  */
 
 
 
 /**
  * All inserting input types that would insert HTML into the DOM.
  *
  * @see https://www.w3.org/TR/input-events-2/#interface-InputEvent-Attributes
  *
  * @type {Set}
  */
 
 const INSERTION_INPUT_TYPES_TO_IGNORE = new Set(['insertParagraph', 'insertOrderedList', 'insertUnorderedList', 'insertHorizontalRule', 'insertLink']);
 const use_input_and_selection_EMPTY_ACTIVE_FORMATS = [];
 /**
  * If the selection is set on the placeholder element, collapse the selection to
  * the start (before the placeholder).
  *
  * @param {Window} defaultView
  */
 
 function fixPlaceholderSelection(defaultView) {
   const selection = defaultView.getSelection();
   const {
     anchorNode,
     anchorOffset
   } = selection;
 
   if (anchorNode.nodeType !== anchorNode.ELEMENT_NODE) {
     return;
   }
 
   const targetNode = anchorNode.childNodes[anchorOffset];
 
   if (!targetNode || targetNode.nodeType !== targetNode.ELEMENT_NODE || !targetNode.getAttribute('data-rich-text-placeholder')) {
     return;
   }
 
   selection.collapseToStart();
 }
 
 function useInputAndSelection(props) {
   const propsRef = Object(external_wp_element_["useRef"])(props);
   propsRef.current = props;
   return Object(external_wp_compose_["useRefEffect"])(element => {
     const {
       ownerDocument
     } = element;
     const {
       defaultView
     } = ownerDocument;
     let isComposing = false;
     let rafId;
 
     function onInput(event) {
       // Do not trigger a change if characters are being composed.
       // Browsers  will usually emit a final `input` event when the
       // characters are composed.
       // As of December 2019, Safari doesn't support
       // nativeEvent.isComposing.
       if (isComposing) {
         return;
       }
 
       let inputType;
 
       if (event) {
         inputType = event.inputType;
       }
 
       const {
         record,
         applyRecord,
         createRecord,
         handleChange
       } = propsRef.current; // The browser formatted something or tried to insert HTML.
       // Overwrite it. It will be handled later by the format library if
       // needed.
 
       if (inputType && (inputType.indexOf('format') === 0 || INSERTION_INPUT_TYPES_TO_IGNORE.has(inputType))) {
         applyRecord(record.current);
         return;
       }
 
       const currentValue = createRecord();
       const {
         start,
         activeFormats: oldActiveFormats = []
       } = record.current; // Update the formats between the last and new caret position.
 
       const change = updateFormats({
         value: currentValue,
         start,
         end: currentValue.start,
         formats: oldActiveFormats
       });
       handleChange(change);
     }
     /**
      * Syncs the selection to local state. A callback for the `selectionchange`
      * native events, `keyup`, `mouseup` and `touchend` synthetic events, and
      * animation frames after the `focus` event.
      *
      * @param {Event|DOMHighResTimeStamp} event
      */
 
 
     function handleSelectionChange(event) {
       if (ownerDocument.activeElement !== element) {
         return;
       }
 
       const {
         record,
         applyRecord,
         createRecord,
         isSelected,
         onSelectionChange
       } = propsRef.current;
 
       if (event.type !== 'selectionchange' && !isSelected) {
         return;
       } // Check if the implementor disabled editing. `contentEditable`
       // does disable input, but not text selection, so we must ignore
       // selection changes.
 
 
       if (element.contentEditable !== 'true') {
         return;
       } // In case of a keyboard event, ignore selection changes during
       // composition.
 
 
       if (isComposing) {
         return;
       }
 
       const {
         start,
         end,
         text
       } = createRecord();
       const oldRecord = record.current; // Fallback mechanism for IE11, which doesn't support the input event.
       // Any input results in a selection change.
 
       if (text !== oldRecord.text) {
         onInput();
         return;
       }
 
       if (start === oldRecord.start && end === oldRecord.end) {
         // Sometimes the browser may set the selection on the placeholder
         // element, in which case the caret is not visible. We need to set
         // the caret before the placeholder if that's the case.
         if (oldRecord.text.length === 0 && start === 0) {
           fixPlaceholderSelection(defaultView);
         }
 
         return;
       }
 
       const newValue = { ...oldRecord,
         start,
         end,
         // _newActiveFormats may be set on arrow key navigation to control
         // the right boundary position. If undefined, getActiveFormats will
         // give the active formats according to the browser.
         activeFormats: oldRecord._newActiveFormats,
         _newActiveFormats: undefined
       };
       const newActiveFormats = getActiveFormats(newValue, use_input_and_selection_EMPTY_ACTIVE_FORMATS); // Update the value with the new active formats.
 
       newValue.activeFormats = newActiveFormats; // It is important that the internal value is updated first,
       // otherwise the value will be wrong on render!
 
       record.current = newValue;
       applyRecord(newValue, {
         domOnly: true
       });
       onSelectionChange(start, end);
     }
 
     function onCompositionStart() {
       isComposing = true; // Do not update the selection when characters are being composed as
       // this rerenders the component and might distroy internal browser
       // editing state.
 
       ownerDocument.removeEventListener('selectionchange', handleSelectionChange);
     }
 
     function onCompositionEnd() {
       isComposing = false; // Ensure the value is up-to-date for browsers that don't emit a final
       // input event after composition.
 
       onInput({
         inputType: 'insertText'
       }); // Tracking selection changes can be resumed.
 
       ownerDocument.addEventListener('selectionchange', handleSelectionChange);
     }
 
     function onFocus() {
       const {
         record,
         isSelected,
         onSelectionChange
       } = propsRef.current;
 
       if (!isSelected) {
         // We know for certain that on focus, the old selection is invalid.
         // It will be recalculated on the next mouseup, keyup, or touchend
         // event.
         const index = undefined;
         record.current = { ...record.current,
           start: index,
           end: index,
           activeFormats: use_input_and_selection_EMPTY_ACTIVE_FORMATS
         };
         onSelectionChange(index, index);
       } else {
         onSelectionChange(record.current.start, record.current.end);
       } // Update selection as soon as possible, which is at the next animation
       // frame. The event listener for selection changes may be added too late
       // at this point, but this focus event is still too early to calculate
       // the selection.
 
 
       rafId = defaultView.requestAnimationFrame(handleSelectionChange);
       ownerDocument.addEventListener('selectionchange', handleSelectionChange);
     }
 
     function onBlur() {
       ownerDocument.removeEventListener('selectionchange', handleSelectionChange);
     }
 
     element.addEventListener('input', onInput);
     element.addEventListener('compositionstart', onCompositionStart);
     element.addEventListener('compositionend', onCompositionEnd);
     element.addEventListener('focus', onFocus);
     element.addEventListener('blur', onBlur); // Selection updates must be done at these events as they
     // happen before the `selectionchange` event. In some cases,
     // the `selectionchange` event may not even fire, for
     // example when the window receives focus again on click.
 
     element.addEventListener('keyup', handleSelectionChange);
     element.addEventListener('mouseup', handleSelectionChange);
     element.addEventListener('touchend', handleSelectionChange);
     return () => {
       element.removeEventListener('input', onInput);
       element.removeEventListener('compositionstart', onCompositionStart);
       element.removeEventListener('compositionend', onCompositionEnd);
       element.removeEventListener('focus', onFocus);
       element.removeEventListener('blur', onBlur);
       element.removeEventListener('keyup', handleSelectionChange);
       element.removeEventListener('mouseup', handleSelectionChange);
       element.removeEventListener('touchend', handleSelectionChange);
       ownerDocument.removeEventListener('selectionchange', handleSelectionChange);
       defaultView.cancelAnimationFrame(rafId);
     };
   }, []);
 }
 
 // CONCATENATED MODULE: ./node_modules/@wordpress/rich-text/build-module/component/use-delete.js
 /**
  * WordPress dependencies
  */
 
 
 
 /**
  * Internal dependencies
  */
 
 
 
 
 function useDelete(props) {
   const propsRef = Object(external_wp_element_["useRef"])(props);
   propsRef.current = props;
   return Object(external_wp_compose_["useRefEffect"])(element => {
     function onKeyDown(event) {
       const {
         keyCode
       } = event;
       const {
         createRecord,
         handleChange,
         multilineTag
       } = propsRef.current;
 
       if (event.defaultPrevented) {
         return;
       }
 
       if (keyCode !== external_wp_keycodes_["DELETE"] && keyCode !== external_wp_keycodes_["BACKSPACE"]) {
         return;
       }
 
       const currentValue = createRecord();
       const {
         start,
         end,
         text
       } = currentValue;
       const isReverse = keyCode === external_wp_keycodes_["BACKSPACE"]; // Always handle full content deletion ourselves.
 
       if (start === 0 && end !== 0 && end === text.length) {
         handleChange(remove_remove(currentValue));
         event.preventDefault();
         return;
       }
 
       if (multilineTag) {
         let newValue; // Check to see if we should remove the first item if empty.
 
         if (isReverse && currentValue.start === 0 && currentValue.end === 0 && isEmptyLine(currentValue)) {
           newValue = removeLineSeparator(currentValue, !isReverse);
         } else {
           newValue = removeLineSeparator(currentValue, isReverse);
         }
 
         if (newValue) {
           handleChange(newValue);
           event.preventDefault();
         }
       }
     }
 
     element.addEventListener('keydown', onKeyDown);
     return () => {
       element.removeEventListener('keydown', onKeyDown);
     };
   }, []);
 }
 
 // CONCATENATED MODULE: ./node_modules/@wordpress/rich-text/build-module/component/index.js
 /**
  * WordPress dependencies
  */
 
 
 /**
  * Internal dependencies
  */
 
 
 
 
 
 
 
 
 
 
 
 
 
 function useRichText({
   value = '',
   selectionStart,
   selectionEnd,
   placeholder,
   preserveWhiteSpace,
   onSelectionChange,
   onChange,
   __unstableMultilineTag: multilineTag,
   __unstableDisableFormats: disableFormats,
   __unstableIsSelected: isSelected,
   __unstableDependencies,
   __unstableAfterParse,
   __unstableBeforeSerialize,
   __unstableAddInvisibleFormats
 }) {
   const [, forceRender] = Object(external_wp_element_["useReducer"])(() => ({}));
   const ref = Object(external_wp_element_["useRef"])();
 
   function createRecord() {
     const {
       ownerDocument: {
         defaultView
       }
     } = ref.current;
     const selection = defaultView.getSelection();
     const range = selection.rangeCount > 0 ? selection.getRangeAt(0) : null;
     return create({
       element: ref.current,
       range,
       multilineTag,
       multilineWrapperTags: multilineTag === 'li' ? ['ul', 'ol'] : undefined,
       __unstableIsEditableTree: true,
       preserveWhiteSpace
     });
   }
 
   function applyRecord(newRecord, {
     domOnly
   } = {}) {
     apply({
       value: newRecord,
       current: ref.current,
       multilineTag,
       multilineWrapperTags: multilineTag === 'li' ? ['ul', 'ol'] : undefined,
       prepareEditableTree: __unstableAddInvisibleFormats,
       __unstableDomOnly: domOnly,
       placeholder
     });
   } // Internal values are updated synchronously, unlike props and state.
 
 
   const _value = Object(external_wp_element_["useRef"])(value);
 
   const record = Object(external_wp_element_["useRef"])();
 
   function setRecordFromProps() {
     _value.current = value;
     record.current = create({
       html: value,
       multilineTag,
       multilineWrapperTags: multilineTag === 'li' ? ['ul', 'ol'] : undefined,
       preserveWhiteSpace
     });
 
     if (disableFormats) {
       record.current.formats = Array(value.length);
       record.current.replacements = Array(value.length);
     }
 
     record.current.formats = __unstableAfterParse(record.current);
     record.current.start = selectionStart;
     record.current.end = selectionEnd;
   }
 
   const hadSelectionUpdate = Object(external_wp_element_["useRef"])(false);
 
   if (!record.current) {
     setRecordFromProps();
   } else if (selectionStart !== record.current.start || selectionEnd !== record.current.end) {
     hadSelectionUpdate.current = isSelected;
     record.current = { ...record.current,
       start: selectionStart,
       end: selectionEnd
     };
   }
   /**
    * Sync the value to global state. The node tree and selection will also be
    * updated if differences are found.
    *
    * @param {Object} newRecord The record to sync and apply.
    */
 
 
   function handleChange(newRecord) {
     applyRecord(newRecord);
 
     if (disableFormats) {
       _value.current = newRecord.text;
     } else {
       _value.current = toHTMLString({
         value: { ...newRecord,
           formats: __unstableBeforeSerialize(newRecord)
         },
         multilineTag,
         preserveWhiteSpace
       });
     }
 
     record.current = newRecord;
     const {
       start,
       end,
       formats,
       text
     } = newRecord; // Selection must be updated first, so it is recorded in history when
     // the content change happens.
 
     onSelectionChange(start, end);
     onChange(_value.current, {
       __unstableFormats: formats,
       __unstableText: text
     });
     forceRender();
   }
 
   function applyFromProps() {
     setRecordFromProps();
     applyRecord(record.current);
   }
 
   const didMount = Object(external_wp_element_["useRef"])(false); // Value updates must happen synchonously to avoid overwriting newer values.
 
   Object(external_wp_element_["useLayoutEffect"])(() => {
     if (didMount.current && value !== _value.current) {
       applyFromProps();
     }
   }, [value]); // Value updates must happen synchonously to avoid overwriting newer values.
 
   Object(external_wp_element_["useLayoutEffect"])(() => {
     if (!hadSelectionUpdate.current) {
       return;
     }
 
     applyFromProps();
     hadSelectionUpdate.current = false;
   }, [hadSelectionUpdate.current]);
 
   function focus() {
     ref.current.focus();
     applyRecord(record.current);
   }
 
   const mergedRefs = Object(external_wp_compose_["useMergeRefs"])([ref, useDefaultStyle(), useBoundaryStyle({
     record
   }), useInlineWarning(), useCopyHandler({
     record,
     multilineTag,
     preserveWhiteSpace
   }), useSelectObject(), useFormatBoundaries({
     record,
     applyRecord
   }), useDelete({
     createRecord,
     handleChange,
     multilineTag
   }), useIndentListItemOnSpace({
     multilineTag,
     createRecord,
     handleChange
   }), useInputAndSelection({
     record,
     applyRecord,
     createRecord,
     handleChange,
     isSelected,
     onSelectionChange
   }), Object(external_wp_compose_["useRefEffect"])(() => {
     applyFromProps();
     didMount.current = true;
   }, [placeholder, ...__unstableDependencies])]);
   return {
     value: record.current,
     onChange: handleChange,
     onFocus: focus,
     ref: mergedRefs
   };
 }
 function __experimentalRichText() {}
 
 // CONCATENATED MODULE: ./node_modules/@wordpress/rich-text/build-module/component/format-edit.js
 
 
 /**
  * Internal dependencies
  */
 
 
 function FormatEdit({
   formatTypes,
   onChange,
   onFocus,
   value,
   forwardedRef
 }) {
   return formatTypes.map(settings => {
     const {
       name,
       edit: Edit
     } = settings;
 
     if (!Edit) {
       return null;
     }
 
     const activeFormat = getActiveFormat(value, name);
     const isActive = activeFormat !== undefined;
     const activeObject = getActiveObject(value);
     const isObjectActive = activeObject !== undefined && activeObject.type === name;
     return Object(external_wp_element_["createElement"])(Edit, {
       key: name,
       isActive: isActive,
       activeAttributes: isActive ? activeFormat.attributes || {} : {},
       isObjectActive: isObjectActive,
       activeObjectAttributes: isObjectActive ? activeObject.attributes || {} : {},
       value: value,
       onChange: onChange,
       onFocus: onFocus,
       contentRef: forwardedRef
     });
   });
 }
 
 // CONCATENATED MODULE: ./node_modules/@wordpress/rich-text/build-module/index.js
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 /***/ })
 
 /******/ });