diff --git a/jscomponents/dist/eczsearch.js b/jscomponents/dist/eczsearch.js
index f2e6533..d00cc6a 100644
--- a/jscomponents/dist/eczsearch.js
+++ b/jscomponents/dist/eczsearch.js
@@ -1,121 +1,2 @@
-/*
- * ATTENTION: The "eval" devtool has been used (maybe by default in mode: "development").
- * This devtool is neither made for production nor for readable output files.
- * It uses "eval()" calls to create a separate source file in the browser devtools.
- * If you are trying to read the output file, select a different devtool (https://webpack.js.org/configuration/devtool/)
- * or disable the default devtool with "devtool: false".
- * If you are looking for production-ready output files, see mode: "production" (https://webpack.js.org/configuration/mode/).
- */
-var eczsearch;
-/******/ (() => { // webpackBootstrap
-/******/ var __webpack_modules__ = ({
-
-/***/ "./src/eczsearch/index.js":
-/*!********************************!*\
- !*** ./src/eczsearch/index.js ***!
- \********************************/
-/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {
-
-"use strict";
-eval("__webpack_require__.r(__webpack_exports__);\n/* harmony export */ __webpack_require__.d(__webpack_exports__, {\n/* harmony export */ \"EczooSearchWidget\": () => (/* reexport safe */ _searchwidget__WEBPACK_IMPORTED_MODULE_0__.EczooSearchWidget),\n/* harmony export */ \"default\": () => (__WEBPACK_DEFAULT_EXPORT__)\n/* harmony export */ });\n/* harmony import */ var _searchwidget__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./searchwidget */ \"./src/eczsearch/searchwidget.js\");\n\n\n/* harmony default export */ const __WEBPACK_DEFAULT_EXPORT__ = ({\n EczooSearchWidget: _searchwidget__WEBPACK_IMPORTED_MODULE_0__.EczooSearchWidget\n});\n\n//# sourceURL=webpack://%5Bname%5D/./src/eczsearch/index.js?");
-
-/***/ }),
-
-/***/ "./src/eczsearch/searchwidget.js":
-/*!***************************************!*\
- !*** ./src/eczsearch/searchwidget.js ***!
- \***************************************/
-/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {
-
-"use strict";
-eval("__webpack_require__.r(__webpack_exports__);\n/* harmony export */ __webpack_require__.d(__webpack_exports__, {\n/* harmony export */ \"EczooSearchWidget\": () => (/* binding */ EczooSearchWidget)\n/* harmony export */ });\n/* harmony import */ var lunr__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! lunr */ \"./node_modules/lunr/lunr.js\");\n/* harmony import */ var lunr__WEBPACK_IMPORTED_MODULE_0___default = /*#__PURE__*/__webpack_require__.n(lunr__WEBPACK_IMPORTED_MODULE_0__);\n\nconst default_context_length = 50; // chars\n\nconst max_num_results_for_mathjax = 100;\n\nfunction _escapeHTML(str) {\n var p = document.createElement(\"p\");\n p.appendChild(document.createTextNode(str));\n return p.innerHTML;\n}\n\nclass EczooSearchWidget {\n constructor(a) {\n this.search_widget_container = a.search_widget_container;\n this.fields = a.fields;\n this.ref_field = a.ref_field;\n this.title_field = a.title_field;\n this.href_field = a.href_field;\n this.context_length = a.context_length;\n\n if (typeof this.context_length == 'undefined') {\n this.context_length = default_context_length;\n }\n\n this.idx = a.idx;\n this.store_fetch_json = a.store_fetch_json;\n\n if (typeof this.store_fetch_json != 'undefined') {\n if (typeof this.store != 'undefined') {\n throw Error(\"EczooSearchFunction: don't specify both store: \" + \"and store_fetch_json: \");\n }\n\n fetch(this.store_fetch_json).then(response => response.json()).then(data => this._set_store_and_install(data));\n return;\n }\n\n this._set_store_and_install(a.store);\n } // private\n\n\n _set_store_and_install(store) {\n this.store = store;\n console.log('Got store. Store = ', store);\n\n if (typeof this.store == 'undefined') {\n throw Error(\"EczooSearchFunction: no store specified or none found\");\n } // maybe we might need to auto-detect the list of fields\n\n\n if (typeof this.fields == 'undefined' || this.fields.length == 0) {\n var fields = [];\n Object.keys(this.store).forEach(store_key => {\n var store_obj = this.store[store_key];\n Object.keys(store_obj).forEach(field_key => {\n if (fields.indexOf(field_key) == -1) {\n fields.push(field_key);\n }\n });\n });\n this.fields = fields;\n } // this.idx\n\n\n if (typeof this.idx == 'undefined') {\n var _this = this;\n\n const buildidx = function () {\n var obj = this;\n obj.ref(_this.ref_field);\n\n _this.fields.forEach(fldname => obj.field(fldname));\n\n obj.metadataWhitelist = ['position'];\n Object.keys(_this.store).forEach(function (k) {\n const doc = _this.store[k];\n obj.add(doc);\n }, obj);\n };\n\n this.idx = lunr__WEBPACK_IMPORTED_MODULE_0___default()(buildidx);\n } //console.log('store =', this.store);\n //console.log('index is = ', this.idx);\n\n\n this._do_install();\n } // private:\n\n\n _do_install() {\n console.log(\"Installing the search widget in the page.\"); // clear any existing content in the target app container\n\n this.search_widget_container.innerHTML = '';\n const inputbox = document.createElement('input');\n inputbox.setAttribute('type', \"text\");\n inputbox.classList.add(\"search-input\");\n inputbox.value = '';\n inputbox.placeholder = 'type & hit RETURN to search';\n this.search_widget_container.appendChild(inputbox);\n this.search_input = inputbox;\n const divresults = document.createElement('div');\n divresults.classList.add('search-results');\n this.search_widget_container.appendChild(divresults);\n this.search_results_container = divresults;\n this.search_input.addEventListener('change', event => this._do_search(event));\n }\n\n _do_search(event) {\n this.search_results_container.innerHTML = '';\n const value = event.target.value;\n\n if (!value || value.trim().length == 0) {\n this._display_search_no_query_string();\n\n return;\n }\n\n console.log(\"Searching! value =\", value);\n var results;\n\n try {\n results = this.idx.search(value);\n } catch (e) {\n if (e instanceof (lunr__WEBPACK_IMPORTED_MODULE_0___default().QueryParseError)) {\n this._display_search_error(value, e);\n\n return;\n } else {\n throw e;\n }\n }\n\n console.log('results =', results);\n\n this._display_search_results(value, results);\n }\n\n _display_search_no_query_string() {\n const p = document.createElement('p');\n p.classList.add('search-no-query-string');\n p.textContent = 'Type a few words above and hit “RETURN” to search the error correction zoo.';\n this.search_results_container.appendChild(p);\n }\n\n _display_search_error(search_str, error) {\n console.log(\"Error in search.\", error);\n const p = document.createElement('p');\n p.classList.add('search-results-error');\n const s1 = document.createElement('span');\n s1.textContent = 'Error in search query ‘' + search_str + '’: ';\n p.appendChild(s1);\n const s2 = document.createElement('span');\n s2.classList.add('search-results-error-message');\n s2.textContent = error.message;\n p.appendChild(s2);\n const a = document.createElement('a');\n a.classList.add('search-query-info');\n a.setAttribute(\"href\", \"https://lunrjs.com/guides/searching.html\");\n a.setAttribute(\"target\", \"_blank\");\n a.textContent = \"(more information on search syntax)\";\n p.appendChild(a);\n this.search_results_container.appendChild(p);\n }\n\n _display_search_results(search_str, results) {\n if (results.length == 0) {\n this._display_search_no_results(search_str);\n } else {\n results.forEach(r => this._add_display_result(r, this.search_results_container));\n\n if (results.length < max_num_results_for_mathjax && typeof MathJax != 'undefined') {\n MathJax.typeset();\n }\n }\n }\n\n _display_search_no_results(search_str) {\n const p = document.createElement('p');\n p.classList.add('search-no-results');\n p.textContent = 'Your search for ‘' + search_str + '’ did not yield any results.';\n const a = document.createElement('a');\n a.classList.add('search-query-info');\n a.setAttribute(\"href\", \"https://lunrjs.com/guides/searching.html\");\n a.setAttribute(\"target\", \"_blank\");\n a.textContent = \"(more information on search syntax)\";\n p.appendChild(a);\n this.search_results_container.appendChild(p);\n }\n\n _add_display_result(result, container) {\n //console.log('store =', this.store);\n //console.log('result =', result);\n const doc = this.store[result.ref];\n const div = document.createElement('div');\n div.classList.add(\"search-result\");\n var srt = document.createElement('div');\n srt.classList.add(\"search-result-title\");\n div.appendChild(srt);\n\n if (this.href_field) {\n var a = document.createElement('a');\n a.setAttribute('href', doc[this.href_field]);\n a.classList.add(\"search-result-link\");\n srt.appendChild(a);\n srt = a;\n }\n\n srt.innerText = doc[this.title_field];\n const hipos = {}; // hipos[field] = [ (list of highlight positions) ]\n\n Object.keys(result.matchData.metadata).forEach(word => {\n const wordmatches = result.matchData.metadata[word];\n Object.keys(wordmatches).forEach(fieldname => {\n const fieldmatches = wordmatches[fieldname];\n const poslist = fieldmatches.position; //console.log('word =', word, 'fieldname =', fieldname, 'poslist =', poslist);\n\n if (!hipos.hasOwnProperty(fieldname)) {\n hipos[fieldname] = [];\n }\n\n hipos[fieldname] = hipos[fieldname].concat(poslist);\n });\n });\n const context_length = this.context_length; // iterate over this.fields instead, to preserve field order\n\n for (const fieldname of this.fields) {\n if (!hipos.hasOwnProperty(fieldname)) {\n // no such field in match\n continue;\n }\n\n const poslist = hipos[fieldname]; // sort highlight positions by starting position\n\n poslist.sort((a, b) => a[0] - b[0]); // make sure that end position does not overstep another starting position\n\n poslist.forEach((x, index) => {\n if (index < poslist.length - 1 && x[0] + x[1] > poslist[index + 1][0]) {\n // oversteps onto next position; shorten\n return [x[0], poslist[index + 1][0] - x[0]];\n } else {\n return [x[0], x[1]]; // all ok\n }\n }); //console.log('fieldname =', fieldname, 'poslist =', poslist);\n\n const docfieldstr = doc[fieldname];\n var showhtml = '';\n var lastpos = 0;\n\n for (const pospair of poslist) {\n if (lastpos > 0 && pospair[0] - lastpos < 2 * context_length || lastpos == 0 && pospair[0] < context_length) {\n // close to previous match (or string start), do not elide\n showhtml += _escapeHTML(docfieldstr.substr(lastpos, pospair[0] - lastpos));\n } else {\n if (lastpos != 0) {\n showhtml += _escapeHTML(docfieldstr.substr(lastpos, context_length));\n showhtml += '…';\n }\n\n showhtml += ' …';\n showhtml += _escapeHTML(docfieldstr.substr(pospair[0] - context_length, context_length));\n }\n\n showhtml += '' + _escapeHTML(docfieldstr.substr(pospair[0], pospair[1])) + '';\n lastpos = pospair[0] + pospair[1];\n }\n\n if (docfieldstr.length > lastpos + context_length) {\n showhtml += _escapeHTML(docfieldstr.substr(lastpos, context_length)) + '…';\n } else {\n showhtml += _escapeHTML(docfieldstr.substr(lastpos));\n } // field name\n\n\n showhtml += '' + _escapeHTML(fieldname) + '';\n const p = document.createElement('div');\n p.classList.add('search-result-field-display');\n var fieldnameclsname = fieldname.replace(/[^a-zA-Z0-9_-]/g, \"\");\n p.classList.add('search-result-field-display--' + fieldnameclsname);\n p.innerHTML = showhtml;\n div.appendChild(p);\n }\n\n container.appendChild(div);\n }\n\n}\n; // -------------------------------------------------------------------\n// automatically install in the page, searching for the correct element by ID\n\nfunction init_search_widget() {\n console.log(\"Initialization code for possible search widget.\");\n const elem = document.getElementById('EczooSearchWidget');\n\n if (elem) {\n console.log(\"Initializing search widget.\");\n var fields = elem.dataset.searchWidgetFields;\n\n if (fields) {\n fields = fieldsval.split(',').map(s => s.trim());\n }\n\n var the_context_length = elem.dataset.searchWidgetContextLength;\n\n if (the_context_length) {\n the_context_length = Number.parseInt(the_context_length);\n }\n\n window.eczoo_search_widget = new EczooSearchWidget({\n search_widget_container: elem,\n store_fetch_json: elem.dataset.searchWidgetStoreFetchJson,\n fields: fields,\n ref_field: elem.dataset.searchWidgetRefField,\n title_field: elem.dataset.searchWidgetTitleField,\n href_field: elem.dataset.searchWidgetHrefField,\n context_length: the_context_length\n });\n }\n}\n\nif (document.readyState === \"complete\") {\n init_search_widget();\n} else {\n console.log('window = ', window);\n window.addEventListener('load', init_search_widget);\n}\n\n//# sourceURL=webpack://%5Bname%5D/./src/eczsearch/searchwidget.js?");
-
-/***/ }),
-
-/***/ "./node_modules/lunr/lunr.js":
-/*!***********************************!*\
- !*** ./node_modules/lunr/lunr.js ***!
- \***********************************/
-/***/ ((module, exports, __webpack_require__) => {
-
-eval("var __WEBPACK_AMD_DEFINE_FACTORY__, __WEBPACK_AMD_DEFINE_RESULT__;/**\n * lunr - http://lunrjs.com - A bit like Solr, but much smaller and not as bright - 2.3.9\n * Copyright (C) 2020 Oliver Nightingale\n * @license MIT\n */\n\n;(function(){\n\n/**\n * A convenience function for configuring and constructing\n * a new lunr Index.\n *\n * A lunr.Builder instance is created and the pipeline setup\n * with a trimmer, stop word filter and stemmer.\n *\n * This builder object is yielded to the configuration function\n * that is passed as a parameter, allowing the list of fields\n * and other builder parameters to be customised.\n *\n * All documents _must_ be added within the passed config function.\n *\n * @example\n * var idx = lunr(function () {\n * this.field('title')\n * this.field('body')\n * this.ref('id')\n *\n * documents.forEach(function (doc) {\n * this.add(doc)\n * }, this)\n * })\n *\n * @see {@link lunr.Builder}\n * @see {@link lunr.Pipeline}\n * @see {@link lunr.trimmer}\n * @see {@link lunr.stopWordFilter}\n * @see {@link lunr.stemmer}\n * @namespace {function} lunr\n */\nvar lunr = function (config) {\n var builder = new lunr.Builder\n\n builder.pipeline.add(\n lunr.trimmer,\n lunr.stopWordFilter,\n lunr.stemmer\n )\n\n builder.searchPipeline.add(\n lunr.stemmer\n )\n\n config.call(builder, builder)\n return builder.build()\n}\n\nlunr.version = \"2.3.9\"\n/*!\n * lunr.utils\n * Copyright (C) 2020 Oliver Nightingale\n */\n\n/**\n * A namespace containing utils for the rest of the lunr library\n * @namespace lunr.utils\n */\nlunr.utils = {}\n\n/**\n * Print a warning message to the console.\n *\n * @param {String} message The message to be printed.\n * @memberOf lunr.utils\n * @function\n */\nlunr.utils.warn = (function (global) {\n /* eslint-disable no-console */\n return function (message) {\n if (global.console && console.warn) {\n console.warn(message)\n }\n }\n /* eslint-enable no-console */\n})(this)\n\n/**\n * Convert an object to a string.\n *\n * In the case of `null` and `undefined` the function returns\n * the empty string, in all other cases the result of calling\n * `toString` on the passed object is returned.\n *\n * @param {Any} obj The object to convert to a string.\n * @return {String} string representation of the passed object.\n * @memberOf lunr.utils\n */\nlunr.utils.asString = function (obj) {\n if (obj === void 0 || obj === null) {\n return \"\"\n } else {\n return obj.toString()\n }\n}\n\n/**\n * Clones an object.\n *\n * Will create a copy of an existing object such that any mutations\n * on the copy cannot affect the original.\n *\n * Only shallow objects are supported, passing a nested object to this\n * function will cause a TypeError.\n *\n * Objects with primitives, and arrays of primitives are supported.\n *\n * @param {Object} obj The object to clone.\n * @return {Object} a clone of the passed object.\n * @throws {TypeError} when a nested object is passed.\n * @memberOf Utils\n */\nlunr.utils.clone = function (obj) {\n if (obj === null || obj === undefined) {\n return obj\n }\n\n var clone = Object.create(null),\n keys = Object.keys(obj)\n\n for (var i = 0; i < keys.length; i++) {\n var key = keys[i],\n val = obj[key]\n\n if (Array.isArray(val)) {\n clone[key] = val.slice()\n continue\n }\n\n if (typeof val === 'string' ||\n typeof val === 'number' ||\n typeof val === 'boolean') {\n clone[key] = val\n continue\n }\n\n throw new TypeError(\"clone is not deep and does not support nested objects\")\n }\n\n return clone\n}\nlunr.FieldRef = function (docRef, fieldName, stringValue) {\n this.docRef = docRef\n this.fieldName = fieldName\n this._stringValue = stringValue\n}\n\nlunr.FieldRef.joiner = \"/\"\n\nlunr.FieldRef.fromString = function (s) {\n var n = s.indexOf(lunr.FieldRef.joiner)\n\n if (n === -1) {\n throw \"malformed field ref string\"\n }\n\n var fieldRef = s.slice(0, n),\n docRef = s.slice(n + 1)\n\n return new lunr.FieldRef (docRef, fieldRef, s)\n}\n\nlunr.FieldRef.prototype.toString = function () {\n if (this._stringValue == undefined) {\n this._stringValue = this.fieldName + lunr.FieldRef.joiner + this.docRef\n }\n\n return this._stringValue\n}\n/*!\n * lunr.Set\n * Copyright (C) 2020 Oliver Nightingale\n */\n\n/**\n * A lunr set.\n *\n * @constructor\n */\nlunr.Set = function (elements) {\n this.elements = Object.create(null)\n\n if (elements) {\n this.length = elements.length\n\n for (var i = 0; i < this.length; i++) {\n this.elements[elements[i]] = true\n }\n } else {\n this.length = 0\n }\n}\n\n/**\n * A complete set that contains all elements.\n *\n * @static\n * @readonly\n * @type {lunr.Set}\n */\nlunr.Set.complete = {\n intersect: function (other) {\n return other\n },\n\n union: function () {\n return this\n },\n\n contains: function () {\n return true\n }\n}\n\n/**\n * An empty set that contains no elements.\n *\n * @static\n * @readonly\n * @type {lunr.Set}\n */\nlunr.Set.empty = {\n intersect: function () {\n return this\n },\n\n union: function (other) {\n return other\n },\n\n contains: function () {\n return false\n }\n}\n\n/**\n * Returns true if this set contains the specified object.\n *\n * @param {object} object - Object whose presence in this set is to be tested.\n * @returns {boolean} - True if this set contains the specified object.\n */\nlunr.Set.prototype.contains = function (object) {\n return !!this.elements[object]\n}\n\n/**\n * Returns a new set containing only the elements that are present in both\n * this set and the specified set.\n *\n * @param {lunr.Set} other - set to intersect with this set.\n * @returns {lunr.Set} a new set that is the intersection of this and the specified set.\n */\n\nlunr.Set.prototype.intersect = function (other) {\n var a, b, elements, intersection = []\n\n if (other === lunr.Set.complete) {\n return this\n }\n\n if (other === lunr.Set.empty) {\n return other\n }\n\n if (this.length < other.length) {\n a = this\n b = other\n } else {\n a = other\n b = this\n }\n\n elements = Object.keys(a.elements)\n\n for (var i = 0; i < elements.length; i++) {\n var element = elements[i]\n if (element in b.elements) {\n intersection.push(element)\n }\n }\n\n return new lunr.Set (intersection)\n}\n\n/**\n * Returns a new set combining the elements of this and the specified set.\n *\n * @param {lunr.Set} other - set to union with this set.\n * @return {lunr.Set} a new set that is the union of this and the specified set.\n */\n\nlunr.Set.prototype.union = function (other) {\n if (other === lunr.Set.complete) {\n return lunr.Set.complete\n }\n\n if (other === lunr.Set.empty) {\n return this\n }\n\n return new lunr.Set(Object.keys(this.elements).concat(Object.keys(other.elements)))\n}\n/**\n * A function to calculate the inverse document frequency for\n * a posting. This is shared between the builder and the index\n *\n * @private\n * @param {object} posting - The posting for a given term\n * @param {number} documentCount - The total number of documents.\n */\nlunr.idf = function (posting, documentCount) {\n var documentsWithTerm = 0\n\n for (var fieldName in posting) {\n if (fieldName == '_index') continue // Ignore the term index, its not a field\n documentsWithTerm += Object.keys(posting[fieldName]).length\n }\n\n var x = (documentCount - documentsWithTerm + 0.5) / (documentsWithTerm + 0.5)\n\n return Math.log(1 + Math.abs(x))\n}\n\n/**\n * A token wraps a string representation of a token\n * as it is passed through the text processing pipeline.\n *\n * @constructor\n * @param {string} [str=''] - The string token being wrapped.\n * @param {object} [metadata={}] - Metadata associated with this token.\n */\nlunr.Token = function (str, metadata) {\n this.str = str || \"\"\n this.metadata = metadata || {}\n}\n\n/**\n * Returns the token string that is being wrapped by this object.\n *\n * @returns {string}\n */\nlunr.Token.prototype.toString = function () {\n return this.str\n}\n\n/**\n * A token update function is used when updating or optionally\n * when cloning a token.\n *\n * @callback lunr.Token~updateFunction\n * @param {string} str - The string representation of the token.\n * @param {Object} metadata - All metadata associated with this token.\n */\n\n/**\n * Applies the given function to the wrapped string token.\n *\n * @example\n * token.update(function (str, metadata) {\n * return str.toUpperCase()\n * })\n *\n * @param {lunr.Token~updateFunction} fn - A function to apply to the token string.\n * @returns {lunr.Token}\n */\nlunr.Token.prototype.update = function (fn) {\n this.str = fn(this.str, this.metadata)\n return this\n}\n\n/**\n * Creates a clone of this token. Optionally a function can be\n * applied to the cloned token.\n *\n * @param {lunr.Token~updateFunction} [fn] - An optional function to apply to the cloned token.\n * @returns {lunr.Token}\n */\nlunr.Token.prototype.clone = function (fn) {\n fn = fn || function (s) { return s }\n return new lunr.Token (fn(this.str, this.metadata), this.metadata)\n}\n/*!\n * lunr.tokenizer\n * Copyright (C) 2020 Oliver Nightingale\n */\n\n/**\n * A function for splitting a string into tokens ready to be inserted into\n * the search index. Uses `lunr.tokenizer.separator` to split strings, change\n * the value of this property to change how strings are split into tokens.\n *\n * This tokenizer will convert its parameter to a string by calling `toString` and\n * then will split this string on the character in `lunr.tokenizer.separator`.\n * Arrays will have their elements converted to strings and wrapped in a lunr.Token.\n *\n * Optional metadata can be passed to the tokenizer, this metadata will be cloned and\n * added as metadata to every token that is created from the object to be tokenized.\n *\n * @static\n * @param {?(string|object|object[])} obj - The object to convert into tokens\n * @param {?object} metadata - Optional metadata to associate with every token\n * @returns {lunr.Token[]}\n * @see {@link lunr.Pipeline}\n */\nlunr.tokenizer = function (obj, metadata) {\n if (obj == null || obj == undefined) {\n return []\n }\n\n if (Array.isArray(obj)) {\n return obj.map(function (t) {\n return new lunr.Token(\n lunr.utils.asString(t).toLowerCase(),\n lunr.utils.clone(metadata)\n )\n })\n }\n\n var str = obj.toString().toLowerCase(),\n len = str.length,\n tokens = []\n\n for (var sliceEnd = 0, sliceStart = 0; sliceEnd <= len; sliceEnd++) {\n var char = str.charAt(sliceEnd),\n sliceLength = sliceEnd - sliceStart\n\n if ((char.match(lunr.tokenizer.separator) || sliceEnd == len)) {\n\n if (sliceLength > 0) {\n var tokenMetadata = lunr.utils.clone(metadata) || {}\n tokenMetadata[\"position\"] = [sliceStart, sliceLength]\n tokenMetadata[\"index\"] = tokens.length\n\n tokens.push(\n new lunr.Token (\n str.slice(sliceStart, sliceEnd),\n tokenMetadata\n )\n )\n }\n\n sliceStart = sliceEnd + 1\n }\n\n }\n\n return tokens\n}\n\n/**\n * The separator used to split a string into tokens. Override this property to change the behaviour of\n * `lunr.tokenizer` behaviour when tokenizing strings. By default this splits on whitespace and hyphens.\n *\n * @static\n * @see lunr.tokenizer\n */\nlunr.tokenizer.separator = /[\\s\\-]+/\n/*!\n * lunr.Pipeline\n * Copyright (C) 2020 Oliver Nightingale\n */\n\n/**\n * lunr.Pipelines maintain an ordered list of functions to be applied to all\n * tokens in documents entering the search index and queries being ran against\n * the index.\n *\n * An instance of lunr.Index created with the lunr shortcut will contain a\n * pipeline with a stop word filter and an English language stemmer. Extra\n * functions can be added before or after either of these functions or these\n * default functions can be removed.\n *\n * When run the pipeline will call each function in turn, passing a token, the\n * index of that token in the original list of all tokens and finally a list of\n * all the original tokens.\n *\n * The output of functions in the pipeline will be passed to the next function\n * in the pipeline. To exclude a token from entering the index the function\n * should return undefined, the rest of the pipeline will not be called with\n * this token.\n *\n * For serialisation of pipelines to work, all functions used in an instance of\n * a pipeline should be registered with lunr.Pipeline. Registered functions can\n * then be loaded. If trying to load a serialised pipeline that uses functions\n * that are not registered an error will be thrown.\n *\n * If not planning on serialising the pipeline then registering pipeline functions\n * is not necessary.\n *\n * @constructor\n */\nlunr.Pipeline = function () {\n this._stack = []\n}\n\nlunr.Pipeline.registeredFunctions = Object.create(null)\n\n/**\n * A pipeline function maps lunr.Token to lunr.Token. A lunr.Token contains the token\n * string as well as all known metadata. A pipeline function can mutate the token string\n * or mutate (or add) metadata for a given token.\n *\n * A pipeline function can indicate that the passed token should be discarded by returning\n * null, undefined or an empty string. This token will not be passed to any downstream pipeline\n * functions and will not be added to the index.\n *\n * Multiple tokens can be returned by returning an array of tokens. Each token will be passed\n * to any downstream pipeline functions and all will returned tokens will be added to the index.\n *\n * Any number of pipeline functions may be chained together using a lunr.Pipeline.\n *\n * @interface lunr.PipelineFunction\n * @param {lunr.Token} token - A token from the document being processed.\n * @param {number} i - The index of this token in the complete list of tokens for this document/field.\n * @param {lunr.Token[]} tokens - All tokens for this document/field.\n * @returns {(?lunr.Token|lunr.Token[])}\n */\n\n/**\n * Register a function with the pipeline.\n *\n * Functions that are used in the pipeline should be registered if the pipeline\n * needs to be serialised, or a serialised pipeline needs to be loaded.\n *\n * Registering a function does not add it to a pipeline, functions must still be\n * added to instances of the pipeline for them to be used when running a pipeline.\n *\n * @param {lunr.PipelineFunction} fn - The function to check for.\n * @param {String} label - The label to register this function with\n */\nlunr.Pipeline.registerFunction = function (fn, label) {\n if (label in this.registeredFunctions) {\n lunr.utils.warn('Overwriting existing registered function: ' + label)\n }\n\n fn.label = label\n lunr.Pipeline.registeredFunctions[fn.label] = fn\n}\n\n/**\n * Warns if the function is not registered as a Pipeline function.\n *\n * @param {lunr.PipelineFunction} fn - The function to check for.\n * @private\n */\nlunr.Pipeline.warnIfFunctionNotRegistered = function (fn) {\n var isRegistered = fn.label && (fn.label in this.registeredFunctions)\n\n if (!isRegistered) {\n lunr.utils.warn('Function is not registered with pipeline. This may cause problems when serialising the index.\\n', fn)\n }\n}\n\n/**\n * Loads a previously serialised pipeline.\n *\n * All functions to be loaded must already be registered with lunr.Pipeline.\n * If any function from the serialised data has not been registered then an\n * error will be thrown.\n *\n * @param {Object} serialised - The serialised pipeline to load.\n * @returns {lunr.Pipeline}\n */\nlunr.Pipeline.load = function (serialised) {\n var pipeline = new lunr.Pipeline\n\n serialised.forEach(function (fnName) {\n var fn = lunr.Pipeline.registeredFunctions[fnName]\n\n if (fn) {\n pipeline.add(fn)\n } else {\n throw new Error('Cannot load unregistered function: ' + fnName)\n }\n })\n\n return pipeline\n}\n\n/**\n * Adds new functions to the end of the pipeline.\n *\n * Logs a warning if the function has not been registered.\n *\n * @param {lunr.PipelineFunction[]} functions - Any number of functions to add to the pipeline.\n */\nlunr.Pipeline.prototype.add = function () {\n var fns = Array.prototype.slice.call(arguments)\n\n fns.forEach(function (fn) {\n lunr.Pipeline.warnIfFunctionNotRegistered(fn)\n this._stack.push(fn)\n }, this)\n}\n\n/**\n * Adds a single function after a function that already exists in the\n * pipeline.\n *\n * Logs a warning if the function has not been registered.\n *\n * @param {lunr.PipelineFunction} existingFn - A function that already exists in the pipeline.\n * @param {lunr.PipelineFunction} newFn - The new function to add to the pipeline.\n */\nlunr.Pipeline.prototype.after = function (existingFn, newFn) {\n lunr.Pipeline.warnIfFunctionNotRegistered(newFn)\n\n var pos = this._stack.indexOf(existingFn)\n if (pos == -1) {\n throw new Error('Cannot find existingFn')\n }\n\n pos = pos + 1\n this._stack.splice(pos, 0, newFn)\n}\n\n/**\n * Adds a single function before a function that already exists in the\n * pipeline.\n *\n * Logs a warning if the function has not been registered.\n *\n * @param {lunr.PipelineFunction} existingFn - A function that already exists in the pipeline.\n * @param {lunr.PipelineFunction} newFn - The new function to add to the pipeline.\n */\nlunr.Pipeline.prototype.before = function (existingFn, newFn) {\n lunr.Pipeline.warnIfFunctionNotRegistered(newFn)\n\n var pos = this._stack.indexOf(existingFn)\n if (pos == -1) {\n throw new Error('Cannot find existingFn')\n }\n\n this._stack.splice(pos, 0, newFn)\n}\n\n/**\n * Removes a function from the pipeline.\n *\n * @param {lunr.PipelineFunction} fn The function to remove from the pipeline.\n */\nlunr.Pipeline.prototype.remove = function (fn) {\n var pos = this._stack.indexOf(fn)\n if (pos == -1) {\n return\n }\n\n this._stack.splice(pos, 1)\n}\n\n/**\n * Runs the current list of functions that make up the pipeline against the\n * passed tokens.\n *\n * @param {Array} tokens The tokens to run through the pipeline.\n * @returns {Array}\n */\nlunr.Pipeline.prototype.run = function (tokens) {\n var stackLength = this._stack.length\n\n for (var i = 0; i < stackLength; i++) {\n var fn = this._stack[i]\n var memo = []\n\n for (var j = 0; j < tokens.length; j++) {\n var result = fn(tokens[j], j, tokens)\n\n if (result === null || result === void 0 || result === '') continue\n\n if (Array.isArray(result)) {\n for (var k = 0; k < result.length; k++) {\n memo.push(result[k])\n }\n } else {\n memo.push(result)\n }\n }\n\n tokens = memo\n }\n\n return tokens\n}\n\n/**\n * Convenience method for passing a string through a pipeline and getting\n * strings out. This method takes care of wrapping the passed string in a\n * token and mapping the resulting tokens back to strings.\n *\n * @param {string} str - The string to pass through the pipeline.\n * @param {?object} metadata - Optional metadata to associate with the token\n * passed to the pipeline.\n * @returns {string[]}\n */\nlunr.Pipeline.prototype.runString = function (str, metadata) {\n var token = new lunr.Token (str, metadata)\n\n return this.run([token]).map(function (t) {\n return t.toString()\n })\n}\n\n/**\n * Resets the pipeline by removing any existing processors.\n *\n */\nlunr.Pipeline.prototype.reset = function () {\n this._stack = []\n}\n\n/**\n * Returns a representation of the pipeline ready for serialisation.\n *\n * Logs a warning if the function has not been registered.\n *\n * @returns {Array}\n */\nlunr.Pipeline.prototype.toJSON = function () {\n return this._stack.map(function (fn) {\n lunr.Pipeline.warnIfFunctionNotRegistered(fn)\n\n return fn.label\n })\n}\n/*!\n * lunr.Vector\n * Copyright (C) 2020 Oliver Nightingale\n */\n\n/**\n * A vector is used to construct the vector space of documents and queries. These\n * vectors support operations to determine the similarity between two documents or\n * a document and a query.\n *\n * Normally no parameters are required for initializing a vector, but in the case of\n * loading a previously dumped vector the raw elements can be provided to the constructor.\n *\n * For performance reasons vectors are implemented with a flat array, where an elements\n * index is immediately followed by its value. E.g. [index, value, index, value]. This\n * allows the underlying array to be as sparse as possible and still offer decent\n * performance when being used for vector calculations.\n *\n * @constructor\n * @param {Number[]} [elements] - The flat list of element index and element value pairs.\n */\nlunr.Vector = function (elements) {\n this._magnitude = 0\n this.elements = elements || []\n}\n\n\n/**\n * Calculates the position within the vector to insert a given index.\n *\n * This is used internally by insert and upsert. If there are duplicate indexes then\n * the position is returned as if the value for that index were to be updated, but it\n * is the callers responsibility to check whether there is a duplicate at that index\n *\n * @param {Number} insertIdx - The index at which the element should be inserted.\n * @returns {Number}\n */\nlunr.Vector.prototype.positionForIndex = function (index) {\n // For an empty vector the tuple can be inserted at the beginning\n if (this.elements.length == 0) {\n return 0\n }\n\n var start = 0,\n end = this.elements.length / 2,\n sliceLength = end - start,\n pivotPoint = Math.floor(sliceLength / 2),\n pivotIndex = this.elements[pivotPoint * 2]\n\n while (sliceLength > 1) {\n if (pivotIndex < index) {\n start = pivotPoint\n }\n\n if (pivotIndex > index) {\n end = pivotPoint\n }\n\n if (pivotIndex == index) {\n break\n }\n\n sliceLength = end - start\n pivotPoint = start + Math.floor(sliceLength / 2)\n pivotIndex = this.elements[pivotPoint * 2]\n }\n\n if (pivotIndex == index) {\n return pivotPoint * 2\n }\n\n if (pivotIndex > index) {\n return pivotPoint * 2\n }\n\n if (pivotIndex < index) {\n return (pivotPoint + 1) * 2\n }\n}\n\n/**\n * Inserts an element at an index within the vector.\n *\n * Does not allow duplicates, will throw an error if there is already an entry\n * for this index.\n *\n * @param {Number} insertIdx - The index at which the element should be inserted.\n * @param {Number} val - The value to be inserted into the vector.\n */\nlunr.Vector.prototype.insert = function (insertIdx, val) {\n this.upsert(insertIdx, val, function () {\n throw \"duplicate index\"\n })\n}\n\n/**\n * Inserts or updates an existing index within the vector.\n *\n * @param {Number} insertIdx - The index at which the element should be inserted.\n * @param {Number} val - The value to be inserted into the vector.\n * @param {function} fn - A function that is called for updates, the existing value and the\n * requested value are passed as arguments\n */\nlunr.Vector.prototype.upsert = function (insertIdx, val, fn) {\n this._magnitude = 0\n var position = this.positionForIndex(insertIdx)\n\n if (this.elements[position] == insertIdx) {\n this.elements[position + 1] = fn(this.elements[position + 1], val)\n } else {\n this.elements.splice(position, 0, insertIdx, val)\n }\n}\n\n/**\n * Calculates the magnitude of this vector.\n *\n * @returns {Number}\n */\nlunr.Vector.prototype.magnitude = function () {\n if (this._magnitude) return this._magnitude\n\n var sumOfSquares = 0,\n elementsLength = this.elements.length\n\n for (var i = 1; i < elementsLength; i += 2) {\n var val = this.elements[i]\n sumOfSquares += val * val\n }\n\n return this._magnitude = Math.sqrt(sumOfSquares)\n}\n\n/**\n * Calculates the dot product of this vector and another vector.\n *\n * @param {lunr.Vector} otherVector - The vector to compute the dot product with.\n * @returns {Number}\n */\nlunr.Vector.prototype.dot = function (otherVector) {\n var dotProduct = 0,\n a = this.elements, b = otherVector.elements,\n aLen = a.length, bLen = b.length,\n aVal = 0, bVal = 0,\n i = 0, j = 0\n\n while (i < aLen && j < bLen) {\n aVal = a[i], bVal = b[j]\n if (aVal < bVal) {\n i += 2\n } else if (aVal > bVal) {\n j += 2\n } else if (aVal == bVal) {\n dotProduct += a[i + 1] * b[j + 1]\n i += 2\n j += 2\n }\n }\n\n return dotProduct\n}\n\n/**\n * Calculates the similarity between this vector and another vector.\n *\n * @param {lunr.Vector} otherVector - The other vector to calculate the\n * similarity with.\n * @returns {Number}\n */\nlunr.Vector.prototype.similarity = function (otherVector) {\n return this.dot(otherVector) / this.magnitude() || 0\n}\n\n/**\n * Converts the vector to an array of the elements within the vector.\n *\n * @returns {Number[]}\n */\nlunr.Vector.prototype.toArray = function () {\n var output = new Array (this.elements.length / 2)\n\n for (var i = 1, j = 0; i < this.elements.length; i += 2, j++) {\n output[j] = this.elements[i]\n }\n\n return output\n}\n\n/**\n * A JSON serializable representation of the vector.\n *\n * @returns {Number[]}\n */\nlunr.Vector.prototype.toJSON = function () {\n return this.elements\n}\n/* eslint-disable */\n/*!\n * lunr.stemmer\n * Copyright (C) 2020 Oliver Nightingale\n * Includes code from - http://tartarus.org/~martin/PorterStemmer/js.txt\n */\n\n/**\n * lunr.stemmer is an english language stemmer, this is a JavaScript\n * implementation of the PorterStemmer taken from http://tartarus.org/~martin\n *\n * @static\n * @implements {lunr.PipelineFunction}\n * @param {lunr.Token} token - The string to stem\n * @returns {lunr.Token}\n * @see {@link lunr.Pipeline}\n * @function\n */\nlunr.stemmer = (function(){\n var step2list = {\n \"ational\" : \"ate\",\n \"tional\" : \"tion\",\n \"enci\" : \"ence\",\n \"anci\" : \"ance\",\n \"izer\" : \"ize\",\n \"bli\" : \"ble\",\n \"alli\" : \"al\",\n \"entli\" : \"ent\",\n \"eli\" : \"e\",\n \"ousli\" : \"ous\",\n \"ization\" : \"ize\",\n \"ation\" : \"ate\",\n \"ator\" : \"ate\",\n \"alism\" : \"al\",\n \"iveness\" : \"ive\",\n \"fulness\" : \"ful\",\n \"ousness\" : \"ous\",\n \"aliti\" : \"al\",\n \"iviti\" : \"ive\",\n \"biliti\" : \"ble\",\n \"logi\" : \"log\"\n },\n\n step3list = {\n \"icate\" : \"ic\",\n \"ative\" : \"\",\n \"alize\" : \"al\",\n \"iciti\" : \"ic\",\n \"ical\" : \"ic\",\n \"ful\" : \"\",\n \"ness\" : \"\"\n },\n\n c = \"[^aeiou]\", // consonant\n v = \"[aeiouy]\", // vowel\n C = c + \"[^aeiouy]*\", // consonant sequence\n V = v + \"[aeiou]*\", // vowel sequence\n\n mgr0 = \"^(\" + C + \")?\" + V + C, // [C]VC... is m>0\n meq1 = \"^(\" + C + \")?\" + V + C + \"(\" + V + \")?$\", // [C]VC[V] is m=1\n mgr1 = \"^(\" + C + \")?\" + V + C + V + C, // [C]VCVC... is m>1\n s_v = \"^(\" + C + \")?\" + v; // vowel in stem\n\n var re_mgr0 = new RegExp(mgr0);\n var re_mgr1 = new RegExp(mgr1);\n var re_meq1 = new RegExp(meq1);\n var re_s_v = new RegExp(s_v);\n\n var re_1a = /^(.+?)(ss|i)es$/;\n var re2_1a = /^(.+?)([^s])s$/;\n var re_1b = /^(.+?)eed$/;\n var re2_1b = /^(.+?)(ed|ing)$/;\n var re_1b_2 = /.$/;\n var re2_1b_2 = /(at|bl|iz)$/;\n var re3_1b_2 = new RegExp(\"([^aeiouylsz])\\\\1$\");\n var re4_1b_2 = new RegExp(\"^\" + C + v + \"[^aeiouwxy]$\");\n\n var re_1c = /^(.+?[^aeiou])y$/;\n var re_2 = /^(.+?)(ational|tional|enci|anci|izer|bli|alli|entli|eli|ousli|ization|ation|ator|alism|iveness|fulness|ousness|aliti|iviti|biliti|logi)$/;\n\n var re_3 = /^(.+?)(icate|ative|alize|iciti|ical|ful|ness)$/;\n\n var re_4 = /^(.+?)(al|ance|ence|er|ic|able|ible|ant|ement|ment|ent|ou|ism|ate|iti|ous|ive|ize)$/;\n var re2_4 = /^(.+?)(s|t)(ion)$/;\n\n var re_5 = /^(.+?)e$/;\n var re_5_1 = /ll$/;\n var re3_5 = new RegExp(\"^\" + C + v + \"[^aeiouwxy]$\");\n\n var porterStemmer = function porterStemmer(w) {\n var stem,\n suffix,\n firstch,\n re,\n re2,\n re3,\n re4;\n\n if (w.length < 3) { return w; }\n\n firstch = w.substr(0,1);\n if (firstch == \"y\") {\n w = firstch.toUpperCase() + w.substr(1);\n }\n\n // Step 1a\n re = re_1a\n re2 = re2_1a;\n\n if (re.test(w)) { w = w.replace(re,\"$1$2\"); }\n else if (re2.test(w)) { w = w.replace(re2,\"$1$2\"); }\n\n // Step 1b\n re = re_1b;\n re2 = re2_1b;\n if (re.test(w)) {\n var fp = re.exec(w);\n re = re_mgr0;\n if (re.test(fp[1])) {\n re = re_1b_2;\n w = w.replace(re,\"\");\n }\n } else if (re2.test(w)) {\n var fp = re2.exec(w);\n stem = fp[1];\n re2 = re_s_v;\n if (re2.test(stem)) {\n w = stem;\n re2 = re2_1b_2;\n re3 = re3_1b_2;\n re4 = re4_1b_2;\n if (re2.test(w)) { w = w + \"e\"; }\n else if (re3.test(w)) { re = re_1b_2; w = w.replace(re,\"\"); }\n else if (re4.test(w)) { w = w + \"e\"; }\n }\n }\n\n // Step 1c - replace suffix y or Y by i if preceded by a non-vowel which is not the first letter of the word (so cry -> cri, by -> by, say -> say)\n re = re_1c;\n if (re.test(w)) {\n var fp = re.exec(w);\n stem = fp[1];\n w = stem + \"i\";\n }\n\n // Step 2\n re = re_2;\n if (re.test(w)) {\n var fp = re.exec(w);\n stem = fp[1];\n suffix = fp[2];\n re = re_mgr0;\n if (re.test(stem)) {\n w = stem + step2list[suffix];\n }\n }\n\n // Step 3\n re = re_3;\n if (re.test(w)) {\n var fp = re.exec(w);\n stem = fp[1];\n suffix = fp[2];\n re = re_mgr0;\n if (re.test(stem)) {\n w = stem + step3list[suffix];\n }\n }\n\n // Step 4\n re = re_4;\n re2 = re2_4;\n if (re.test(w)) {\n var fp = re.exec(w);\n stem = fp[1];\n re = re_mgr1;\n if (re.test(stem)) {\n w = stem;\n }\n } else if (re2.test(w)) {\n var fp = re2.exec(w);\n stem = fp[1] + fp[2];\n re2 = re_mgr1;\n if (re2.test(stem)) {\n w = stem;\n }\n }\n\n // Step 5\n re = re_5;\n if (re.test(w)) {\n var fp = re.exec(w);\n stem = fp[1];\n re = re_mgr1;\n re2 = re_meq1;\n re3 = re3_5;\n if (re.test(stem) || (re2.test(stem) && !(re3.test(stem)))) {\n w = stem;\n }\n }\n\n re = re_5_1;\n re2 = re_mgr1;\n if (re.test(w) && re2.test(w)) {\n re = re_1b_2;\n w = w.replace(re,\"\");\n }\n\n // and turn initial Y back to y\n\n if (firstch == \"y\") {\n w = firstch.toLowerCase() + w.substr(1);\n }\n\n return w;\n };\n\n return function (token) {\n return token.update(porterStemmer);\n }\n})();\n\nlunr.Pipeline.registerFunction(lunr.stemmer, 'stemmer')\n/*!\n * lunr.stopWordFilter\n * Copyright (C) 2020 Oliver Nightingale\n */\n\n/**\n * lunr.generateStopWordFilter builds a stopWordFilter function from the provided\n * list of stop words.\n *\n * The built in lunr.stopWordFilter is built using this generator and can be used\n * to generate custom stopWordFilters for applications or non English languages.\n *\n * @function\n * @param {Array} token The token to pass through the filter\n * @returns {lunr.PipelineFunction}\n * @see lunr.Pipeline\n * @see lunr.stopWordFilter\n */\nlunr.generateStopWordFilter = function (stopWords) {\n var words = stopWords.reduce(function (memo, stopWord) {\n memo[stopWord] = stopWord\n return memo\n }, {})\n\n return function (token) {\n if (token && words[token.toString()] !== token.toString()) return token\n }\n}\n\n/**\n * lunr.stopWordFilter is an English language stop word list filter, any words\n * contained in the list will not be passed through the filter.\n *\n * This is intended to be used in the Pipeline. If the token does not pass the\n * filter then undefined will be returned.\n *\n * @function\n * @implements {lunr.PipelineFunction}\n * @params {lunr.Token} token - A token to check for being a stop word.\n * @returns {lunr.Token}\n * @see {@link lunr.Pipeline}\n */\nlunr.stopWordFilter = lunr.generateStopWordFilter([\n 'a',\n 'able',\n 'about',\n 'across',\n 'after',\n 'all',\n 'almost',\n 'also',\n 'am',\n 'among',\n 'an',\n 'and',\n 'any',\n 'are',\n 'as',\n 'at',\n 'be',\n 'because',\n 'been',\n 'but',\n 'by',\n 'can',\n 'cannot',\n 'could',\n 'dear',\n 'did',\n 'do',\n 'does',\n 'either',\n 'else',\n 'ever',\n 'every',\n 'for',\n 'from',\n 'get',\n 'got',\n 'had',\n 'has',\n 'have',\n 'he',\n 'her',\n 'hers',\n 'him',\n 'his',\n 'how',\n 'however',\n 'i',\n 'if',\n 'in',\n 'into',\n 'is',\n 'it',\n 'its',\n 'just',\n 'least',\n 'let',\n 'like',\n 'likely',\n 'may',\n 'me',\n 'might',\n 'most',\n 'must',\n 'my',\n 'neither',\n 'no',\n 'nor',\n 'not',\n 'of',\n 'off',\n 'often',\n 'on',\n 'only',\n 'or',\n 'other',\n 'our',\n 'own',\n 'rather',\n 'said',\n 'say',\n 'says',\n 'she',\n 'should',\n 'since',\n 'so',\n 'some',\n 'than',\n 'that',\n 'the',\n 'their',\n 'them',\n 'then',\n 'there',\n 'these',\n 'they',\n 'this',\n 'tis',\n 'to',\n 'too',\n 'twas',\n 'us',\n 'wants',\n 'was',\n 'we',\n 'were',\n 'what',\n 'when',\n 'where',\n 'which',\n 'while',\n 'who',\n 'whom',\n 'why',\n 'will',\n 'with',\n 'would',\n 'yet',\n 'you',\n 'your'\n])\n\nlunr.Pipeline.registerFunction(lunr.stopWordFilter, 'stopWordFilter')\n/*!\n * lunr.trimmer\n * Copyright (C) 2020 Oliver Nightingale\n */\n\n/**\n * lunr.trimmer is a pipeline function for trimming non word\n * characters from the beginning and end of tokens before they\n * enter the index.\n *\n * This implementation may not work correctly for non latin\n * characters and should either be removed or adapted for use\n * with languages with non-latin characters.\n *\n * @static\n * @implements {lunr.PipelineFunction}\n * @param {lunr.Token} token The token to pass through the filter\n * @returns {lunr.Token}\n * @see lunr.Pipeline\n */\nlunr.trimmer = function (token) {\n return token.update(function (s) {\n return s.replace(/^\\W+/, '').replace(/\\W+$/, '')\n })\n}\n\nlunr.Pipeline.registerFunction(lunr.trimmer, 'trimmer')\n/*!\n * lunr.TokenSet\n * Copyright (C) 2020 Oliver Nightingale\n */\n\n/**\n * A token set is used to store the unique list of all tokens\n * within an index. Token sets are also used to represent an\n * incoming query to the index, this query token set and index\n * token set are then intersected to find which tokens to look\n * up in the inverted index.\n *\n * A token set can hold multiple tokens, as in the case of the\n * index token set, or it can hold a single token as in the\n * case of a simple query token set.\n *\n * Additionally token sets are used to perform wildcard matching.\n * Leading, contained and trailing wildcards are supported, and\n * from this edit distance matching can also be provided.\n *\n * Token sets are implemented as a minimal finite state automata,\n * where both common prefixes and suffixes are shared between tokens.\n * This helps to reduce the space used for storing the token set.\n *\n * @constructor\n */\nlunr.TokenSet = function () {\n this.final = false\n this.edges = {}\n this.id = lunr.TokenSet._nextId\n lunr.TokenSet._nextId += 1\n}\n\n/**\n * Keeps track of the next, auto increment, identifier to assign\n * to a new tokenSet.\n *\n * TokenSets require a unique identifier to be correctly minimised.\n *\n * @private\n */\nlunr.TokenSet._nextId = 1\n\n/**\n * Creates a TokenSet instance from the given sorted array of words.\n *\n * @param {String[]} arr - A sorted array of strings to create the set from.\n * @returns {lunr.TokenSet}\n * @throws Will throw an error if the input array is not sorted.\n */\nlunr.TokenSet.fromArray = function (arr) {\n var builder = new lunr.TokenSet.Builder\n\n for (var i = 0, len = arr.length; i < len; i++) {\n builder.insert(arr[i])\n }\n\n builder.finish()\n return builder.root\n}\n\n/**\n * Creates a token set from a query clause.\n *\n * @private\n * @param {Object} clause - A single clause from lunr.Query.\n * @param {string} clause.term - The query clause term.\n * @param {number} [clause.editDistance] - The optional edit distance for the term.\n * @returns {lunr.TokenSet}\n */\nlunr.TokenSet.fromClause = function (clause) {\n if ('editDistance' in clause) {\n return lunr.TokenSet.fromFuzzyString(clause.term, clause.editDistance)\n } else {\n return lunr.TokenSet.fromString(clause.term)\n }\n}\n\n/**\n * Creates a token set representing a single string with a specified\n * edit distance.\n *\n * Insertions, deletions, substitutions and transpositions are each\n * treated as an edit distance of 1.\n *\n * Increasing the allowed edit distance will have a dramatic impact\n * on the performance of both creating and intersecting these TokenSets.\n * It is advised to keep the edit distance less than 3.\n *\n * @param {string} str - The string to create the token set from.\n * @param {number} editDistance - The allowed edit distance to match.\n * @returns {lunr.Vector}\n */\nlunr.TokenSet.fromFuzzyString = function (str, editDistance) {\n var root = new lunr.TokenSet\n\n var stack = [{\n node: root,\n editsRemaining: editDistance,\n str: str\n }]\n\n while (stack.length) {\n var frame = stack.pop()\n\n // no edit\n if (frame.str.length > 0) {\n var char = frame.str.charAt(0),\n noEditNode\n\n if (char in frame.node.edges) {\n noEditNode = frame.node.edges[char]\n } else {\n noEditNode = new lunr.TokenSet\n frame.node.edges[char] = noEditNode\n }\n\n if (frame.str.length == 1) {\n noEditNode.final = true\n }\n\n stack.push({\n node: noEditNode,\n editsRemaining: frame.editsRemaining,\n str: frame.str.slice(1)\n })\n }\n\n if (frame.editsRemaining == 0) {\n continue\n }\n\n // insertion\n if (\"*\" in frame.node.edges) {\n var insertionNode = frame.node.edges[\"*\"]\n } else {\n var insertionNode = new lunr.TokenSet\n frame.node.edges[\"*\"] = insertionNode\n }\n\n if (frame.str.length == 0) {\n insertionNode.final = true\n }\n\n stack.push({\n node: insertionNode,\n editsRemaining: frame.editsRemaining - 1,\n str: frame.str\n })\n\n // deletion\n // can only do a deletion if we have enough edits remaining\n // and if there are characters left to delete in the string\n if (frame.str.length > 1) {\n stack.push({\n node: frame.node,\n editsRemaining: frame.editsRemaining - 1,\n str: frame.str.slice(1)\n })\n }\n\n // deletion\n // just removing the last character from the str\n if (frame.str.length == 1) {\n frame.node.final = true\n }\n\n // substitution\n // can only do a substitution if we have enough edits remaining\n // and if there are characters left to substitute\n if (frame.str.length >= 1) {\n if (\"*\" in frame.node.edges) {\n var substitutionNode = frame.node.edges[\"*\"]\n } else {\n var substitutionNode = new lunr.TokenSet\n frame.node.edges[\"*\"] = substitutionNode\n }\n\n if (frame.str.length == 1) {\n substitutionNode.final = true\n }\n\n stack.push({\n node: substitutionNode,\n editsRemaining: frame.editsRemaining - 1,\n str: frame.str.slice(1)\n })\n }\n\n // transposition\n // can only do a transposition if there are edits remaining\n // and there are enough characters to transpose\n if (frame.str.length > 1) {\n var charA = frame.str.charAt(0),\n charB = frame.str.charAt(1),\n transposeNode\n\n if (charB in frame.node.edges) {\n transposeNode = frame.node.edges[charB]\n } else {\n transposeNode = new lunr.TokenSet\n frame.node.edges[charB] = transposeNode\n }\n\n if (frame.str.length == 1) {\n transposeNode.final = true\n }\n\n stack.push({\n node: transposeNode,\n editsRemaining: frame.editsRemaining - 1,\n str: charA + frame.str.slice(2)\n })\n }\n }\n\n return root\n}\n\n/**\n * Creates a TokenSet from a string.\n *\n * The string may contain one or more wildcard characters (*)\n * that will allow wildcard matching when intersecting with\n * another TokenSet.\n *\n * @param {string} str - The string to create a TokenSet from.\n * @returns {lunr.TokenSet}\n */\nlunr.TokenSet.fromString = function (str) {\n var node = new lunr.TokenSet,\n root = node\n\n /*\n * Iterates through all characters within the passed string\n * appending a node for each character.\n *\n * When a wildcard character is found then a self\n * referencing edge is introduced to continually match\n * any number of any characters.\n */\n for (var i = 0, len = str.length; i < len; i++) {\n var char = str[i],\n final = (i == len - 1)\n\n if (char == \"*\") {\n node.edges[char] = node\n node.final = final\n\n } else {\n var next = new lunr.TokenSet\n next.final = final\n\n node.edges[char] = next\n node = next\n }\n }\n\n return root\n}\n\n/**\n * Converts this TokenSet into an array of strings\n * contained within the TokenSet.\n *\n * This is not intended to be used on a TokenSet that\n * contains wildcards, in these cases the results are\n * undefined and are likely to cause an infinite loop.\n *\n * @returns {string[]}\n */\nlunr.TokenSet.prototype.toArray = function () {\n var words = []\n\n var stack = [{\n prefix: \"\",\n node: this\n }]\n\n while (stack.length) {\n var frame = stack.pop(),\n edges = Object.keys(frame.node.edges),\n len = edges.length\n\n if (frame.node.final) {\n /* In Safari, at this point the prefix is sometimes corrupted, see:\n * https://github.com/olivernn/lunr.js/issues/279 Calling any\n * String.prototype method forces Safari to \"cast\" this string to what\n * it's supposed to be, fixing the bug. */\n frame.prefix.charAt(0)\n words.push(frame.prefix)\n }\n\n for (var i = 0; i < len; i++) {\n var edge = edges[i]\n\n stack.push({\n prefix: frame.prefix.concat(edge),\n node: frame.node.edges[edge]\n })\n }\n }\n\n return words\n}\n\n/**\n * Generates a string representation of a TokenSet.\n *\n * This is intended to allow TokenSets to be used as keys\n * in objects, largely to aid the construction and minimisation\n * of a TokenSet. As such it is not designed to be a human\n * friendly representation of the TokenSet.\n *\n * @returns {string}\n */\nlunr.TokenSet.prototype.toString = function () {\n // NOTE: Using Object.keys here as this.edges is very likely\n // to enter 'hash-mode' with many keys being added\n //\n // avoiding a for-in loop here as it leads to the function\n // being de-optimised (at least in V8). From some simple\n // benchmarks the performance is comparable, but allowing\n // V8 to optimize may mean easy performance wins in the future.\n\n if (this._str) {\n return this._str\n }\n\n var str = this.final ? '1' : '0',\n labels = Object.keys(this.edges).sort(),\n len = labels.length\n\n for (var i = 0; i < len; i++) {\n var label = labels[i],\n node = this.edges[label]\n\n str = str + label + node.id\n }\n\n return str\n}\n\n/**\n * Returns a new TokenSet that is the intersection of\n * this TokenSet and the passed TokenSet.\n *\n * This intersection will take into account any wildcards\n * contained within the TokenSet.\n *\n * @param {lunr.TokenSet} b - An other TokenSet to intersect with.\n * @returns {lunr.TokenSet}\n */\nlunr.TokenSet.prototype.intersect = function (b) {\n var output = new lunr.TokenSet,\n frame = undefined\n\n var stack = [{\n qNode: b,\n output: output,\n node: this\n }]\n\n while (stack.length) {\n frame = stack.pop()\n\n // NOTE: As with the #toString method, we are using\n // Object.keys and a for loop instead of a for-in loop\n // as both of these objects enter 'hash' mode, causing\n // the function to be de-optimised in V8\n var qEdges = Object.keys(frame.qNode.edges),\n qLen = qEdges.length,\n nEdges = Object.keys(frame.node.edges),\n nLen = nEdges.length\n\n for (var q = 0; q < qLen; q++) {\n var qEdge = qEdges[q]\n\n for (var n = 0; n < nLen; n++) {\n var nEdge = nEdges[n]\n\n if (nEdge == qEdge || qEdge == '*') {\n var node = frame.node.edges[nEdge],\n qNode = frame.qNode.edges[qEdge],\n final = node.final && qNode.final,\n next = undefined\n\n if (nEdge in frame.output.edges) {\n // an edge already exists for this character\n // no need to create a new node, just set the finality\n // bit unless this node is already final\n next = frame.output.edges[nEdge]\n next.final = next.final || final\n\n } else {\n // no edge exists yet, must create one\n // set the finality bit and insert it\n // into the output\n next = new lunr.TokenSet\n next.final = final\n frame.output.edges[nEdge] = next\n }\n\n stack.push({\n qNode: qNode,\n output: next,\n node: node\n })\n }\n }\n }\n }\n\n return output\n}\nlunr.TokenSet.Builder = function () {\n this.previousWord = \"\"\n this.root = new lunr.TokenSet\n this.uncheckedNodes = []\n this.minimizedNodes = {}\n}\n\nlunr.TokenSet.Builder.prototype.insert = function (word) {\n var node,\n commonPrefix = 0\n\n if (word < this.previousWord) {\n throw new Error (\"Out of order word insertion\")\n }\n\n for (var i = 0; i < word.length && i < this.previousWord.length; i++) {\n if (word[i] != this.previousWord[i]) break\n commonPrefix++\n }\n\n this.minimize(commonPrefix)\n\n if (this.uncheckedNodes.length == 0) {\n node = this.root\n } else {\n node = this.uncheckedNodes[this.uncheckedNodes.length - 1].child\n }\n\n for (var i = commonPrefix; i < word.length; i++) {\n var nextNode = new lunr.TokenSet,\n char = word[i]\n\n node.edges[char] = nextNode\n\n this.uncheckedNodes.push({\n parent: node,\n char: char,\n child: nextNode\n })\n\n node = nextNode\n }\n\n node.final = true\n this.previousWord = word\n}\n\nlunr.TokenSet.Builder.prototype.finish = function () {\n this.minimize(0)\n}\n\nlunr.TokenSet.Builder.prototype.minimize = function (downTo) {\n for (var i = this.uncheckedNodes.length - 1; i >= downTo; i--) {\n var node = this.uncheckedNodes[i],\n childKey = node.child.toString()\n\n if (childKey in this.minimizedNodes) {\n node.parent.edges[node.char] = this.minimizedNodes[childKey]\n } else {\n // Cache the key for this node since\n // we know it can't change anymore\n node.child._str = childKey\n\n this.minimizedNodes[childKey] = node.child\n }\n\n this.uncheckedNodes.pop()\n }\n}\n/*!\n * lunr.Index\n * Copyright (C) 2020 Oliver Nightingale\n */\n\n/**\n * An index contains the built index of all documents and provides a query interface\n * to the index.\n *\n * Usually instances of lunr.Index will not be created using this constructor, instead\n * lunr.Builder should be used to construct new indexes, or lunr.Index.load should be\n * used to load previously built and serialized indexes.\n *\n * @constructor\n * @param {Object} attrs - The attributes of the built search index.\n * @param {Object} attrs.invertedIndex - An index of term/field to document reference.\n * @param {Object} attrs.fieldVectors - Field vectors\n * @param {lunr.TokenSet} attrs.tokenSet - An set of all corpus tokens.\n * @param {string[]} attrs.fields - The names of indexed document fields.\n * @param {lunr.Pipeline} attrs.pipeline - The pipeline to use for search terms.\n */\nlunr.Index = function (attrs) {\n this.invertedIndex = attrs.invertedIndex\n this.fieldVectors = attrs.fieldVectors\n this.tokenSet = attrs.tokenSet\n this.fields = attrs.fields\n this.pipeline = attrs.pipeline\n}\n\n/**\n * A result contains details of a document matching a search query.\n * @typedef {Object} lunr.Index~Result\n * @property {string} ref - The reference of the document this result represents.\n * @property {number} score - A number between 0 and 1 representing how similar this document is to the query.\n * @property {lunr.MatchData} matchData - Contains metadata about this match including which term(s) caused the match.\n */\n\n/**\n * Although lunr provides the ability to create queries using lunr.Query, it also provides a simple\n * query language which itself is parsed into an instance of lunr.Query.\n *\n * For programmatically building queries it is advised to directly use lunr.Query, the query language\n * is best used for human entered text rather than program generated text.\n *\n * At its simplest queries can just be a single term, e.g. `hello`, multiple terms are also supported\n * and will be combined with OR, e.g `hello world` will match documents that contain either 'hello'\n * or 'world', though those that contain both will rank higher in the results.\n *\n * Wildcards can be included in terms to match one or more unspecified characters, these wildcards can\n * be inserted anywhere within the term, and more than one wildcard can exist in a single term. Adding\n * wildcards will increase the number of documents that will be found but can also have a negative\n * impact on query performance, especially with wildcards at the beginning of a term.\n *\n * Terms can be restricted to specific fields, e.g. `title:hello`, only documents with the term\n * hello in the title field will match this query. Using a field not present in the index will lead\n * to an error being thrown.\n *\n * Modifiers can also be added to terms, lunr supports edit distance and boost modifiers on terms. A term\n * boost will make documents matching that term score higher, e.g. `foo^5`. Edit distance is also supported\n * to provide fuzzy matching, e.g. 'hello~2' will match documents with hello with an edit distance of 2.\n * Avoid large values for edit distance to improve query performance.\n *\n * Each term also supports a presence modifier. By default a term's presence in document is optional, however\n * this can be changed to either required or prohibited. For a term's presence to be required in a document the\n * term should be prefixed with a '+', e.g. `+foo bar` is a search for documents that must contain 'foo' and\n * optionally contain 'bar'. Conversely a leading '-' sets the terms presence to prohibited, i.e. it must not\n * appear in a document, e.g. `-foo bar` is a search for documents that do not contain 'foo' but may contain 'bar'.\n *\n * To escape special characters the backslash character '\\' can be used, this allows searches to include\n * characters that would normally be considered modifiers, e.g. `foo\\~2` will search for a term \"foo~2\" instead\n * of attempting to apply a boost of 2 to the search term \"foo\".\n *\n * @typedef {string} lunr.Index~QueryString\n * @example
Simple single term query
\n * hello\n * @example
Multiple term query
\n * hello world\n * @example
term scoped to a field
\n * title:hello\n * @example
term with a boost of 10
\n * hello^10\n * @example
term with an edit distance of 2
\n * hello~2\n * @example
terms with presence modifiers
\n * -foo +bar baz\n */\n\n/**\n * Performs a search against the index using lunr query syntax.\n *\n * Results will be returned sorted by their score, the most relevant results\n * will be returned first. For details on how the score is calculated, please see\n * the {@link https://lunrjs.com/guides/searching.html#scoring|guide}.\n *\n * For more programmatic querying use lunr.Index#query.\n *\n * @param {lunr.Index~QueryString} queryString - A string containing a lunr query.\n * @throws {lunr.QueryParseError} If the passed query string cannot be parsed.\n * @returns {lunr.Index~Result[]}\n */\nlunr.Index.prototype.search = function (queryString) {\n return this.query(function (query) {\n var parser = new lunr.QueryParser(queryString, query)\n parser.parse()\n })\n}\n\n/**\n * A query builder callback provides a query object to be used to express\n * the query to perform on the index.\n *\n * @callback lunr.Index~queryBuilder\n * @param {lunr.Query} query - The query object to build up.\n * @this lunr.Query\n */\n\n/**\n * Performs a query against the index using the yielded lunr.Query object.\n *\n * If performing programmatic queries against the index, this method is preferred\n * over lunr.Index#search so as to avoid the additional query parsing overhead.\n *\n * A query object is yielded to the supplied function which should be used to\n * express the query to be run against the index.\n *\n * Note that although this function takes a callback parameter it is _not_ an\n * asynchronous operation, the callback is just yielded a query object to be\n * customized.\n *\n * @param {lunr.Index~queryBuilder} fn - A function that is used to build the query.\n * @returns {lunr.Index~Result[]}\n */\nlunr.Index.prototype.query = function (fn) {\n // for each query clause\n // * process terms\n // * expand terms from token set\n // * find matching documents and metadata\n // * get document vectors\n // * score documents\n\n var query = new lunr.Query(this.fields),\n matchingFields = Object.create(null),\n queryVectors = Object.create(null),\n termFieldCache = Object.create(null),\n requiredMatches = Object.create(null),\n prohibitedMatches = Object.create(null)\n\n /*\n * To support field level boosts a query vector is created per\n * field. An empty vector is eagerly created to support negated\n * queries.\n */\n for (var i = 0; i < this.fields.length; i++) {\n queryVectors[this.fields[i]] = new lunr.Vector\n }\n\n fn.call(query, query)\n\n for (var i = 0; i < query.clauses.length; i++) {\n /*\n * Unless the pipeline has been disabled for this term, which is\n * the case for terms with wildcards, we need to pass the clause\n * term through the search pipeline. A pipeline returns an array\n * of processed terms. Pipeline functions may expand the passed\n * term, which means we may end up performing multiple index lookups\n * for a single query term.\n */\n var clause = query.clauses[i],\n terms = null,\n clauseMatches = lunr.Set.empty\n\n if (clause.usePipeline) {\n terms = this.pipeline.runString(clause.term, {\n fields: clause.fields\n })\n } else {\n terms = [clause.term]\n }\n\n for (var m = 0; m < terms.length; m++) {\n var term = terms[m]\n\n /*\n * Each term returned from the pipeline needs to use the same query\n * clause object, e.g. the same boost and or edit distance. The\n * simplest way to do this is to re-use the clause object but mutate\n * its term property.\n */\n clause.term = term\n\n /*\n * From the term in the clause we create a token set which will then\n * be used to intersect the indexes token set to get a list of terms\n * to lookup in the inverted index\n */\n var termTokenSet = lunr.TokenSet.fromClause(clause),\n expandedTerms = this.tokenSet.intersect(termTokenSet).toArray()\n\n /*\n * If a term marked as required does not exist in the tokenSet it is\n * impossible for the search to return any matches. We set all the field\n * scoped required matches set to empty and stop examining any further\n * clauses.\n */\n if (expandedTerms.length === 0 && clause.presence === lunr.Query.presence.REQUIRED) {\n for (var k = 0; k < clause.fields.length; k++) {\n var field = clause.fields[k]\n requiredMatches[field] = lunr.Set.empty\n }\n\n break\n }\n\n for (var j = 0; j < expandedTerms.length; j++) {\n /*\n * For each term get the posting and termIndex, this is required for\n * building the query vector.\n */\n var expandedTerm = expandedTerms[j],\n posting = this.invertedIndex[expandedTerm],\n termIndex = posting._index\n\n for (var k = 0; k < clause.fields.length; k++) {\n /*\n * For each field that this query term is scoped by (by default\n * all fields are in scope) we need to get all the document refs\n * that have this term in that field.\n *\n * The posting is the entry in the invertedIndex for the matching\n * term from above.\n */\n var field = clause.fields[k],\n fieldPosting = posting[field],\n matchingDocumentRefs = Object.keys(fieldPosting),\n termField = expandedTerm + \"/\" + field,\n matchingDocumentsSet = new lunr.Set(matchingDocumentRefs)\n\n /*\n * if the presence of this term is required ensure that the matching\n * documents are added to the set of required matches for this clause.\n *\n */\n if (clause.presence == lunr.Query.presence.REQUIRED) {\n clauseMatches = clauseMatches.union(matchingDocumentsSet)\n\n if (requiredMatches[field] === undefined) {\n requiredMatches[field] = lunr.Set.complete\n }\n }\n\n /*\n * if the presence of this term is prohibited ensure that the matching\n * documents are added to the set of prohibited matches for this field,\n * creating that set if it does not yet exist.\n */\n if (clause.presence == lunr.Query.presence.PROHIBITED) {\n if (prohibitedMatches[field] === undefined) {\n prohibitedMatches[field] = lunr.Set.empty\n }\n\n prohibitedMatches[field] = prohibitedMatches[field].union(matchingDocumentsSet)\n\n /*\n * Prohibited matches should not be part of the query vector used for\n * similarity scoring and no metadata should be extracted so we continue\n * to the next field\n */\n continue\n }\n\n /*\n * The query field vector is populated using the termIndex found for\n * the term and a unit value with the appropriate boost applied.\n * Using upsert because there could already be an entry in the vector\n * for the term we are working with. In that case we just add the scores\n * together.\n */\n queryVectors[field].upsert(termIndex, clause.boost, function (a, b) { return a + b })\n\n /**\n * If we've already seen this term, field combo then we've already collected\n * the matching documents and metadata, no need to go through all that again\n */\n if (termFieldCache[termField]) {\n continue\n }\n\n for (var l = 0; l < matchingDocumentRefs.length; l++) {\n /*\n * All metadata for this term/field/document triple\n * are then extracted and collected into an instance\n * of lunr.MatchData ready to be returned in the query\n * results\n */\n var matchingDocumentRef = matchingDocumentRefs[l],\n matchingFieldRef = new lunr.FieldRef (matchingDocumentRef, field),\n metadata = fieldPosting[matchingDocumentRef],\n fieldMatch\n\n if ((fieldMatch = matchingFields[matchingFieldRef]) === undefined) {\n matchingFields[matchingFieldRef] = new lunr.MatchData (expandedTerm, field, metadata)\n } else {\n fieldMatch.add(expandedTerm, field, metadata)\n }\n\n }\n\n termFieldCache[termField] = true\n }\n }\n }\n\n /**\n * If the presence was required we need to update the requiredMatches field sets.\n * We do this after all fields for the term have collected their matches because\n * the clause terms presence is required in _any_ of the fields not _all_ of the\n * fields.\n */\n if (clause.presence === lunr.Query.presence.REQUIRED) {\n for (var k = 0; k < clause.fields.length; k++) {\n var field = clause.fields[k]\n requiredMatches[field] = requiredMatches[field].intersect(clauseMatches)\n }\n }\n }\n\n /**\n * Need to combine the field scoped required and prohibited\n * matching documents into a global set of required and prohibited\n * matches\n */\n var allRequiredMatches = lunr.Set.complete,\n allProhibitedMatches = lunr.Set.empty\n\n for (var i = 0; i < this.fields.length; i++) {\n var field = this.fields[i]\n\n if (requiredMatches[field]) {\n allRequiredMatches = allRequiredMatches.intersect(requiredMatches[field])\n }\n\n if (prohibitedMatches[field]) {\n allProhibitedMatches = allProhibitedMatches.union(prohibitedMatches[field])\n }\n }\n\n var matchingFieldRefs = Object.keys(matchingFields),\n results = [],\n matches = Object.create(null)\n\n /*\n * If the query is negated (contains only prohibited terms)\n * we need to get _all_ fieldRefs currently existing in the\n * index. This is only done when we know that the query is\n * entirely prohibited terms to avoid any cost of getting all\n * fieldRefs unnecessarily.\n *\n * Additionally, blank MatchData must be created to correctly\n * populate the results.\n */\n if (query.isNegated()) {\n matchingFieldRefs = Object.keys(this.fieldVectors)\n\n for (var i = 0; i < matchingFieldRefs.length; i++) {\n var matchingFieldRef = matchingFieldRefs[i]\n var fieldRef = lunr.FieldRef.fromString(matchingFieldRef)\n matchingFields[matchingFieldRef] = new lunr.MatchData\n }\n }\n\n for (var i = 0; i < matchingFieldRefs.length; i++) {\n /*\n * Currently we have document fields that match the query, but we\n * need to return documents. The matchData and scores are combined\n * from multiple fields belonging to the same document.\n *\n * Scores are calculated by field, using the query vectors created\n * above, and combined into a final document score using addition.\n */\n var fieldRef = lunr.FieldRef.fromString(matchingFieldRefs[i]),\n docRef = fieldRef.docRef\n\n if (!allRequiredMatches.contains(docRef)) {\n continue\n }\n\n if (allProhibitedMatches.contains(docRef)) {\n continue\n }\n\n var fieldVector = this.fieldVectors[fieldRef],\n score = queryVectors[fieldRef.fieldName].similarity(fieldVector),\n docMatch\n\n if ((docMatch = matches[docRef]) !== undefined) {\n docMatch.score += score\n docMatch.matchData.combine(matchingFields[fieldRef])\n } else {\n var match = {\n ref: docRef,\n score: score,\n matchData: matchingFields[fieldRef]\n }\n matches[docRef] = match\n results.push(match)\n }\n }\n\n /*\n * Sort the results objects by score, highest first.\n */\n return results.sort(function (a, b) {\n return b.score - a.score\n })\n}\n\n/**\n * Prepares the index for JSON serialization.\n *\n * The schema for this JSON blob will be described in a\n * separate JSON schema file.\n *\n * @returns {Object}\n */\nlunr.Index.prototype.toJSON = function () {\n var invertedIndex = Object.keys(this.invertedIndex)\n .sort()\n .map(function (term) {\n return [term, this.invertedIndex[term]]\n }, this)\n\n var fieldVectors = Object.keys(this.fieldVectors)\n .map(function (ref) {\n return [ref, this.fieldVectors[ref].toJSON()]\n }, this)\n\n return {\n version: lunr.version,\n fields: this.fields,\n fieldVectors: fieldVectors,\n invertedIndex: invertedIndex,\n pipeline: this.pipeline.toJSON()\n }\n}\n\n/**\n * Loads a previously serialized lunr.Index\n *\n * @param {Object} serializedIndex - A previously serialized lunr.Index\n * @returns {lunr.Index}\n */\nlunr.Index.load = function (serializedIndex) {\n var attrs = {},\n fieldVectors = {},\n serializedVectors = serializedIndex.fieldVectors,\n invertedIndex = Object.create(null),\n serializedInvertedIndex = serializedIndex.invertedIndex,\n tokenSetBuilder = new lunr.TokenSet.Builder,\n pipeline = lunr.Pipeline.load(serializedIndex.pipeline)\n\n if (serializedIndex.version != lunr.version) {\n lunr.utils.warn(\"Version mismatch when loading serialised index. Current version of lunr '\" + lunr.version + \"' does not match serialized index '\" + serializedIndex.version + \"'\")\n }\n\n for (var i = 0; i < serializedVectors.length; i++) {\n var tuple = serializedVectors[i],\n ref = tuple[0],\n elements = tuple[1]\n\n fieldVectors[ref] = new lunr.Vector(elements)\n }\n\n for (var i = 0; i < serializedInvertedIndex.length; i++) {\n var tuple = serializedInvertedIndex[i],\n term = tuple[0],\n posting = tuple[1]\n\n tokenSetBuilder.insert(term)\n invertedIndex[term] = posting\n }\n\n tokenSetBuilder.finish()\n\n attrs.fields = serializedIndex.fields\n\n attrs.fieldVectors = fieldVectors\n attrs.invertedIndex = invertedIndex\n attrs.tokenSet = tokenSetBuilder.root\n attrs.pipeline = pipeline\n\n return new lunr.Index(attrs)\n}\n/*!\n * lunr.Builder\n * Copyright (C) 2020 Oliver Nightingale\n */\n\n/**\n * lunr.Builder performs indexing on a set of documents and\n * returns instances of lunr.Index ready for querying.\n *\n * All configuration of the index is done via the builder, the\n * fields to index, the document reference, the text processing\n * pipeline and document scoring parameters are all set on the\n * builder before indexing.\n *\n * @constructor\n * @property {string} _ref - Internal reference to the document reference field.\n * @property {string[]} _fields - Internal reference to the document fields to index.\n * @property {object} invertedIndex - The inverted index maps terms to document fields.\n * @property {object} documentTermFrequencies - Keeps track of document term frequencies.\n * @property {object} documentLengths - Keeps track of the length of documents added to the index.\n * @property {lunr.tokenizer} tokenizer - Function for splitting strings into tokens for indexing.\n * @property {lunr.Pipeline} pipeline - The pipeline performs text processing on tokens before indexing.\n * @property {lunr.Pipeline} searchPipeline - A pipeline for processing search terms before querying the index.\n * @property {number} documentCount - Keeps track of the total number of documents indexed.\n * @property {number} _b - A parameter to control field length normalization, setting this to 0 disabled normalization, 1 fully normalizes field lengths, the default value is 0.75.\n * @property {number} _k1 - A parameter to control how quickly an increase in term frequency results in term frequency saturation, the default value is 1.2.\n * @property {number} termIndex - A counter incremented for each unique term, used to identify a terms position in the vector space.\n * @property {array} metadataWhitelist - A list of metadata keys that have been whitelisted for entry in the index.\n */\nlunr.Builder = function () {\n this._ref = \"id\"\n this._fields = Object.create(null)\n this._documents = Object.create(null)\n this.invertedIndex = Object.create(null)\n this.fieldTermFrequencies = {}\n this.fieldLengths = {}\n this.tokenizer = lunr.tokenizer\n this.pipeline = new lunr.Pipeline\n this.searchPipeline = new lunr.Pipeline\n this.documentCount = 0\n this._b = 0.75\n this._k1 = 1.2\n this.termIndex = 0\n this.metadataWhitelist = []\n}\n\n/**\n * Sets the document field used as the document reference. Every document must have this field.\n * The type of this field in the document should be a string, if it is not a string it will be\n * coerced into a string by calling toString.\n *\n * The default ref is 'id'.\n *\n * The ref should _not_ be changed during indexing, it should be set before any documents are\n * added to the index. Changing it during indexing can lead to inconsistent results.\n *\n * @param {string} ref - The name of the reference field in the document.\n */\nlunr.Builder.prototype.ref = function (ref) {\n this._ref = ref\n}\n\n/**\n * A function that is used to extract a field from a document.\n *\n * Lunr expects a field to be at the top level of a document, if however the field\n * is deeply nested within a document an extractor function can be used to extract\n * the right field for indexing.\n *\n * @callback fieldExtractor\n * @param {object} doc - The document being added to the index.\n * @returns {?(string|object|object[])} obj - The object that will be indexed for this field.\n * @example
Extracting a nested field
\n * function (doc) { return doc.nested.field }\n */\n\n/**\n * Adds a field to the list of document fields that will be indexed. Every document being\n * indexed should have this field. Null values for this field in indexed documents will\n * not cause errors but will limit the chance of that document being retrieved by searches.\n *\n * All fields should be added before adding documents to the index. Adding fields after\n * a document has been indexed will have no effect on already indexed documents.\n *\n * Fields can be boosted at build time. This allows terms within that field to have more\n * importance when ranking search results. Use a field boost to specify that matches within\n * one field are more important than other fields.\n *\n * @param {string} fieldName - The name of a field to index in all documents.\n * @param {object} attributes - Optional attributes associated with this field.\n * @param {number} [attributes.boost=1] - Boost applied to all terms within this field.\n * @param {fieldExtractor} [attributes.extractor] - Function to extract a field from a document.\n * @throws {RangeError} fieldName cannot contain unsupported characters '/'\n */\nlunr.Builder.prototype.field = function (fieldName, attributes) {\n if (/\\//.test(fieldName)) {\n throw new RangeError (\"Field '\" + fieldName + \"' contains illegal character '/'\")\n }\n\n this._fields[fieldName] = attributes || {}\n}\n\n/**\n * A parameter to tune the amount of field length normalisation that is applied when\n * calculating relevance scores. A value of 0 will completely disable any normalisation\n * and a value of 1 will fully normalise field lengths. The default is 0.75. Values of b\n * will be clamped to the range 0 - 1.\n *\n * @param {number} number - The value to set for this tuning parameter.\n */\nlunr.Builder.prototype.b = function (number) {\n if (number < 0) {\n this._b = 0\n } else if (number > 1) {\n this._b = 1\n } else {\n this._b = number\n }\n}\n\n/**\n * A parameter that controls the speed at which a rise in term frequency results in term\n * frequency saturation. The default value is 1.2. Setting this to a higher value will give\n * slower saturation levels, a lower value will result in quicker saturation.\n *\n * @param {number} number - The value to set for this tuning parameter.\n */\nlunr.Builder.prototype.k1 = function (number) {\n this._k1 = number\n}\n\n/**\n * Adds a document to the index.\n *\n * Before adding fields to the index the index should have been fully setup, with the document\n * ref and all fields to index already having been specified.\n *\n * The document must have a field name as specified by the ref (by default this is 'id') and\n * it should have all fields defined for indexing, though null or undefined values will not\n * cause errors.\n *\n * Entire documents can be boosted at build time. Applying a boost to a document indicates that\n * this document should rank higher in search results than other documents.\n *\n * @param {object} doc - The document to add to the index.\n * @param {object} attributes - Optional attributes associated with this document.\n * @param {number} [attributes.boost=1] - Boost applied to all terms within this document.\n */\nlunr.Builder.prototype.add = function (doc, attributes) {\n var docRef = doc[this._ref],\n fields = Object.keys(this._fields)\n\n this._documents[docRef] = attributes || {}\n this.documentCount += 1\n\n for (var i = 0; i < fields.length; i++) {\n var fieldName = fields[i],\n extractor = this._fields[fieldName].extractor,\n field = extractor ? extractor(doc) : doc[fieldName],\n tokens = this.tokenizer(field, {\n fields: [fieldName]\n }),\n terms = this.pipeline.run(tokens),\n fieldRef = new lunr.FieldRef (docRef, fieldName),\n fieldTerms = Object.create(null)\n\n this.fieldTermFrequencies[fieldRef] = fieldTerms\n this.fieldLengths[fieldRef] = 0\n\n // store the length of this field for this document\n this.fieldLengths[fieldRef] += terms.length\n\n // calculate term frequencies for this field\n for (var j = 0; j < terms.length; j++) {\n var term = terms[j]\n\n if (fieldTerms[term] == undefined) {\n fieldTerms[term] = 0\n }\n\n fieldTerms[term] += 1\n\n // add to inverted index\n // create an initial posting if one doesn't exist\n if (this.invertedIndex[term] == undefined) {\n var posting = Object.create(null)\n posting[\"_index\"] = this.termIndex\n this.termIndex += 1\n\n for (var k = 0; k < fields.length; k++) {\n posting[fields[k]] = Object.create(null)\n }\n\n this.invertedIndex[term] = posting\n }\n\n // add an entry for this term/fieldName/docRef to the invertedIndex\n if (this.invertedIndex[term][fieldName][docRef] == undefined) {\n this.invertedIndex[term][fieldName][docRef] = Object.create(null)\n }\n\n // store all whitelisted metadata about this token in the\n // inverted index\n for (var l = 0; l < this.metadataWhitelist.length; l++) {\n var metadataKey = this.metadataWhitelist[l],\n metadata = term.metadata[metadataKey]\n\n if (this.invertedIndex[term][fieldName][docRef][metadataKey] == undefined) {\n this.invertedIndex[term][fieldName][docRef][metadataKey] = []\n }\n\n this.invertedIndex[term][fieldName][docRef][metadataKey].push(metadata)\n }\n }\n\n }\n}\n\n/**\n * Calculates the average document length for this index\n *\n * @private\n */\nlunr.Builder.prototype.calculateAverageFieldLengths = function () {\n\n var fieldRefs = Object.keys(this.fieldLengths),\n numberOfFields = fieldRefs.length,\n accumulator = {},\n documentsWithField = {}\n\n for (var i = 0; i < numberOfFields; i++) {\n var fieldRef = lunr.FieldRef.fromString(fieldRefs[i]),\n field = fieldRef.fieldName\n\n documentsWithField[field] || (documentsWithField[field] = 0)\n documentsWithField[field] += 1\n\n accumulator[field] || (accumulator[field] = 0)\n accumulator[field] += this.fieldLengths[fieldRef]\n }\n\n var fields = Object.keys(this._fields)\n\n for (var i = 0; i < fields.length; i++) {\n var fieldName = fields[i]\n accumulator[fieldName] = accumulator[fieldName] / documentsWithField[fieldName]\n }\n\n this.averageFieldLength = accumulator\n}\n\n/**\n * Builds a vector space model of every document using lunr.Vector\n *\n * @private\n */\nlunr.Builder.prototype.createFieldVectors = function () {\n var fieldVectors = {},\n fieldRefs = Object.keys(this.fieldTermFrequencies),\n fieldRefsLength = fieldRefs.length,\n termIdfCache = Object.create(null)\n\n for (var i = 0; i < fieldRefsLength; i++) {\n var fieldRef = lunr.FieldRef.fromString(fieldRefs[i]),\n fieldName = fieldRef.fieldName,\n fieldLength = this.fieldLengths[fieldRef],\n fieldVector = new lunr.Vector,\n termFrequencies = this.fieldTermFrequencies[fieldRef],\n terms = Object.keys(termFrequencies),\n termsLength = terms.length\n\n\n var fieldBoost = this._fields[fieldName].boost || 1,\n docBoost = this._documents[fieldRef.docRef].boost || 1\n\n for (var j = 0; j < termsLength; j++) {\n var term = terms[j],\n tf = termFrequencies[term],\n termIndex = this.invertedIndex[term]._index,\n idf, score, scoreWithPrecision\n\n if (termIdfCache[term] === undefined) {\n idf = lunr.idf(this.invertedIndex[term], this.documentCount)\n termIdfCache[term] = idf\n } else {\n idf = termIdfCache[term]\n }\n\n score = idf * ((this._k1 + 1) * tf) / (this._k1 * (1 - this._b + this._b * (fieldLength / this.averageFieldLength[fieldName])) + tf)\n score *= fieldBoost\n score *= docBoost\n scoreWithPrecision = Math.round(score * 1000) / 1000\n // Converts 1.23456789 to 1.234.\n // Reducing the precision so that the vectors take up less\n // space when serialised. Doing it now so that they behave\n // the same before and after serialisation. Also, this is\n // the fastest approach to reducing a number's precision in\n // JavaScript.\n\n fieldVector.insert(termIndex, scoreWithPrecision)\n }\n\n fieldVectors[fieldRef] = fieldVector\n }\n\n this.fieldVectors = fieldVectors\n}\n\n/**\n * Creates a token set of all tokens in the index using lunr.TokenSet\n *\n * @private\n */\nlunr.Builder.prototype.createTokenSet = function () {\n this.tokenSet = lunr.TokenSet.fromArray(\n Object.keys(this.invertedIndex).sort()\n )\n}\n\n/**\n * Builds the index, creating an instance of lunr.Index.\n *\n * This completes the indexing process and should only be called\n * once all documents have been added to the index.\n *\n * @returns {lunr.Index}\n */\nlunr.Builder.prototype.build = function () {\n this.calculateAverageFieldLengths()\n this.createFieldVectors()\n this.createTokenSet()\n\n return new lunr.Index({\n invertedIndex: this.invertedIndex,\n fieldVectors: this.fieldVectors,\n tokenSet: this.tokenSet,\n fields: Object.keys(this._fields),\n pipeline: this.searchPipeline\n })\n}\n\n/**\n * Applies a plugin to the index builder.\n *\n * A plugin is a function that is called with the index builder as its context.\n * Plugins can be used to customise or extend the behaviour of the index\n * in some way. A plugin is just a function, that encapsulated the custom\n * behaviour that should be applied when building the index.\n *\n * The plugin function will be called with the index builder as its argument, additional\n * arguments can also be passed when calling use. The function will be called\n * with the index builder as its context.\n *\n * @param {Function} plugin The plugin to apply.\n */\nlunr.Builder.prototype.use = function (fn) {\n var args = Array.prototype.slice.call(arguments, 1)\n args.unshift(this)\n fn.apply(this, args)\n}\n/**\n * Contains and collects metadata about a matching document.\n * A single instance of lunr.MatchData is returned as part of every\n * lunr.Index~Result.\n *\n * @constructor\n * @param {string} term - The term this match data is associated with\n * @param {string} field - The field in which the term was found\n * @param {object} metadata - The metadata recorded about this term in this field\n * @property {object} metadata - A cloned collection of metadata associated with this document.\n * @see {@link lunr.Index~Result}\n */\nlunr.MatchData = function (term, field, metadata) {\n var clonedMetadata = Object.create(null),\n metadataKeys = Object.keys(metadata || {})\n\n // Cloning the metadata to prevent the original\n // being mutated during match data combination.\n // Metadata is kept in an array within the inverted\n // index so cloning the data can be done with\n // Array#slice\n for (var i = 0; i < metadataKeys.length; i++) {\n var key = metadataKeys[i]\n clonedMetadata[key] = metadata[key].slice()\n }\n\n this.metadata = Object.create(null)\n\n if (term !== undefined) {\n this.metadata[term] = Object.create(null)\n this.metadata[term][field] = clonedMetadata\n }\n}\n\n/**\n * An instance of lunr.MatchData will be created for every term that matches a\n * document. However only one instance is required in a lunr.Index~Result. This\n * method combines metadata from another instance of lunr.MatchData with this\n * objects metadata.\n *\n * @param {lunr.MatchData} otherMatchData - Another instance of match data to merge with this one.\n * @see {@link lunr.Index~Result}\n */\nlunr.MatchData.prototype.combine = function (otherMatchData) {\n var terms = Object.keys(otherMatchData.metadata)\n\n for (var i = 0; i < terms.length; i++) {\n var term = terms[i],\n fields = Object.keys(otherMatchData.metadata[term])\n\n if (this.metadata[term] == undefined) {\n this.metadata[term] = Object.create(null)\n }\n\n for (var j = 0; j < fields.length; j++) {\n var field = fields[j],\n keys = Object.keys(otherMatchData.metadata[term][field])\n\n if (this.metadata[term][field] == undefined) {\n this.metadata[term][field] = Object.create(null)\n }\n\n for (var k = 0; k < keys.length; k++) {\n var key = keys[k]\n\n if (this.metadata[term][field][key] == undefined) {\n this.metadata[term][field][key] = otherMatchData.metadata[term][field][key]\n } else {\n this.metadata[term][field][key] = this.metadata[term][field][key].concat(otherMatchData.metadata[term][field][key])\n }\n\n }\n }\n }\n}\n\n/**\n * Add metadata for a term/field pair to this instance of match data.\n *\n * @param {string} term - The term this match data is associated with\n * @param {string} field - The field in which the term was found\n * @param {object} metadata - The metadata recorded about this term in this field\n */\nlunr.MatchData.prototype.add = function (term, field, metadata) {\n if (!(term in this.metadata)) {\n this.metadata[term] = Object.create(null)\n this.metadata[term][field] = metadata\n return\n }\n\n if (!(field in this.metadata[term])) {\n this.metadata[term][field] = metadata\n return\n }\n\n var metadataKeys = Object.keys(metadata)\n\n for (var i = 0; i < metadataKeys.length; i++) {\n var key = metadataKeys[i]\n\n if (key in this.metadata[term][field]) {\n this.metadata[term][field][key] = this.metadata[term][field][key].concat(metadata[key])\n } else {\n this.metadata[term][field][key] = metadata[key]\n }\n }\n}\n/**\n * A lunr.Query provides a programmatic way of defining queries to be performed\n * against a {@link lunr.Index}.\n *\n * Prefer constructing a lunr.Query using the {@link lunr.Index#query} method\n * so the query object is pre-initialized with the right index fields.\n *\n * @constructor\n * @property {lunr.Query~Clause[]} clauses - An array of query clauses.\n * @property {string[]} allFields - An array of all available fields in a lunr.Index.\n */\nlunr.Query = function (allFields) {\n this.clauses = []\n this.allFields = allFields\n}\n\n/**\n * Constants for indicating what kind of automatic wildcard insertion will be used when constructing a query clause.\n *\n * This allows wildcards to be added to the beginning and end of a term without having to manually do any string\n * concatenation.\n *\n * The wildcard constants can be bitwise combined to select both leading and trailing wildcards.\n *\n * @constant\n * @default\n * @property {number} wildcard.NONE - The term will have no wildcards inserted, this is the default behaviour\n * @property {number} wildcard.LEADING - Prepend the term with a wildcard, unless a leading wildcard already exists\n * @property {number} wildcard.TRAILING - Append a wildcard to the term, unless a trailing wildcard already exists\n * @see lunr.Query~Clause\n * @see lunr.Query#clause\n * @see lunr.Query#term\n * @example
\n * query.term('foo', {\n * wildcard: lunr.Query.wildcard.LEADING | lunr.Query.wildcard.TRAILING\n * })\n */\n\nlunr.Query.wildcard = new String (\"*\")\nlunr.Query.wildcard.NONE = 0\nlunr.Query.wildcard.LEADING = 1\nlunr.Query.wildcard.TRAILING = 2\n\n/**\n * Constants for indicating what kind of presence a term must have in matching documents.\n *\n * @constant\n * @enum {number}\n * @see lunr.Query~Clause\n * @see lunr.Query#clause\n * @see lunr.Query#term\n * @example
query term with required presence
\n * query.term('foo', { presence: lunr.Query.presence.REQUIRED })\n */\nlunr.Query.presence = {\n /**\n * Term's presence in a document is optional, this is the default value.\n */\n OPTIONAL: 1,\n\n /**\n * Term's presence in a document is required, documents that do not contain\n * this term will not be returned.\n */\n REQUIRED: 2,\n\n /**\n * Term's presence in a document is prohibited, documents that do contain\n * this term will not be returned.\n */\n PROHIBITED: 3\n}\n\n/**\n * A single clause in a {@link lunr.Query} contains a term and details on how to\n * match that term against a {@link lunr.Index}.\n *\n * @typedef {Object} lunr.Query~Clause\n * @property {string[]} fields - The fields in an index this clause should be matched against.\n * @property {number} [boost=1] - Any boost that should be applied when matching this clause.\n * @property {number} [editDistance] - Whether the term should have fuzzy matching applied, and how fuzzy the match should be.\n * @property {boolean} [usePipeline] - Whether the term should be passed through the search pipeline.\n * @property {number} [wildcard=lunr.Query.wildcard.NONE] - Whether the term should have wildcards appended or prepended.\n * @property {number} [presence=lunr.Query.presence.OPTIONAL] - The terms presence in any matching documents.\n */\n\n/**\n * Adds a {@link lunr.Query~Clause} to this query.\n *\n * Unless the clause contains the fields to be matched all fields will be matched. In addition\n * a default boost of 1 is applied to the clause.\n *\n * @param {lunr.Query~Clause} clause - The clause to add to this query.\n * @see lunr.Query~Clause\n * @returns {lunr.Query}\n */\nlunr.Query.prototype.clause = function (clause) {\n if (!('fields' in clause)) {\n clause.fields = this.allFields\n }\n\n if (!('boost' in clause)) {\n clause.boost = 1\n }\n\n if (!('usePipeline' in clause)) {\n clause.usePipeline = true\n }\n\n if (!('wildcard' in clause)) {\n clause.wildcard = lunr.Query.wildcard.NONE\n }\n\n if ((clause.wildcard & lunr.Query.wildcard.LEADING) && (clause.term.charAt(0) != lunr.Query.wildcard)) {\n clause.term = \"*\" + clause.term\n }\n\n if ((clause.wildcard & lunr.Query.wildcard.TRAILING) && (clause.term.slice(-1) != lunr.Query.wildcard)) {\n clause.term = \"\" + clause.term + \"*\"\n }\n\n if (!('presence' in clause)) {\n clause.presence = lunr.Query.presence.OPTIONAL\n }\n\n this.clauses.push(clause)\n\n return this\n}\n\n/**\n * A negated query is one in which every clause has a presence of\n * prohibited. These queries require some special processing to return\n * the expected results.\n *\n * @returns boolean\n */\nlunr.Query.prototype.isNegated = function () {\n for (var i = 0; i < this.clauses.length; i++) {\n if (this.clauses[i].presence != lunr.Query.presence.PROHIBITED) {\n return false\n }\n }\n\n return true\n}\n\n/**\n * Adds a term to the current query, under the covers this will create a {@link lunr.Query~Clause}\n * to the list of clauses that make up this query.\n *\n * The term is used as is, i.e. no tokenization will be performed by this method. Instead conversion\n * to a token or token-like string should be done before calling this method.\n *\n * The term will be converted to a string by calling `toString`. Multiple terms can be passed as an\n * array, each term in the array will share the same options.\n *\n * @param {object|object[]} term - The term(s) to add to the query.\n * @param {object} [options] - Any additional properties to add to the query clause.\n * @returns {lunr.Query}\n * @see lunr.Query#clause\n * @see lunr.Query~Clause\n * @example
adding a single term to a query
\n * query.term(\"foo\")\n * @example
adding a single term to a query and specifying search fields, term boost and automatic trailing wildcard
using lunr.tokenizer to convert a string to tokens before using them as terms
\n * query.term(lunr.tokenizer(\"foo bar\"))\n */\nlunr.Query.prototype.term = function (term, options) {\n if (Array.isArray(term)) {\n term.forEach(function (t) { this.term(t, lunr.utils.clone(options)) }, this)\n return this\n }\n\n var clause = options || {}\n clause.term = term.toString()\n\n this.clause(clause)\n\n return this\n}\nlunr.QueryParseError = function (message, start, end) {\n this.name = \"QueryParseError\"\n this.message = message\n this.start = start\n this.end = end\n}\n\nlunr.QueryParseError.prototype = new Error\nlunr.QueryLexer = function (str) {\n this.lexemes = []\n this.str = str\n this.length = str.length\n this.pos = 0\n this.start = 0\n this.escapeCharPositions = []\n}\n\nlunr.QueryLexer.prototype.run = function () {\n var state = lunr.QueryLexer.lexText\n\n while (state) {\n state = state(this)\n }\n}\n\nlunr.QueryLexer.prototype.sliceString = function () {\n var subSlices = [],\n sliceStart = this.start,\n sliceEnd = this.pos\n\n for (var i = 0; i < this.escapeCharPositions.length; i++) {\n sliceEnd = this.escapeCharPositions[i]\n subSlices.push(this.str.slice(sliceStart, sliceEnd))\n sliceStart = sliceEnd + 1\n }\n\n subSlices.push(this.str.slice(sliceStart, this.pos))\n this.escapeCharPositions.length = 0\n\n return subSlices.join('')\n}\n\nlunr.QueryLexer.prototype.emit = function (type) {\n this.lexemes.push({\n type: type,\n str: this.sliceString(),\n start: this.start,\n end: this.pos\n })\n\n this.start = this.pos\n}\n\nlunr.QueryLexer.prototype.escapeCharacter = function () {\n this.escapeCharPositions.push(this.pos - 1)\n this.pos += 1\n}\n\nlunr.QueryLexer.prototype.next = function () {\n if (this.pos >= this.length) {\n return lunr.QueryLexer.EOS\n }\n\n var char = this.str.charAt(this.pos)\n this.pos += 1\n return char\n}\n\nlunr.QueryLexer.prototype.width = function () {\n return this.pos - this.start\n}\n\nlunr.QueryLexer.prototype.ignore = function () {\n if (this.start == this.pos) {\n this.pos += 1\n }\n\n this.start = this.pos\n}\n\nlunr.QueryLexer.prototype.backup = function () {\n this.pos -= 1\n}\n\nlunr.QueryLexer.prototype.acceptDigitRun = function () {\n var char, charCode\n\n do {\n char = this.next()\n charCode = char.charCodeAt(0)\n } while (charCode > 47 && charCode < 58)\n\n if (char != lunr.QueryLexer.EOS) {\n this.backup()\n }\n}\n\nlunr.QueryLexer.prototype.more = function () {\n return this.pos < this.length\n}\n\nlunr.QueryLexer.EOS = 'EOS'\nlunr.QueryLexer.FIELD = 'FIELD'\nlunr.QueryLexer.TERM = 'TERM'\nlunr.QueryLexer.EDIT_DISTANCE = 'EDIT_DISTANCE'\nlunr.QueryLexer.BOOST = 'BOOST'\nlunr.QueryLexer.PRESENCE = 'PRESENCE'\n\nlunr.QueryLexer.lexField = function (lexer) {\n lexer.backup()\n lexer.emit(lunr.QueryLexer.FIELD)\n lexer.ignore()\n return lunr.QueryLexer.lexText\n}\n\nlunr.QueryLexer.lexTerm = function (lexer) {\n if (lexer.width() > 1) {\n lexer.backup()\n lexer.emit(lunr.QueryLexer.TERM)\n }\n\n lexer.ignore()\n\n if (lexer.more()) {\n return lunr.QueryLexer.lexText\n }\n}\n\nlunr.QueryLexer.lexEditDistance = function (lexer) {\n lexer.ignore()\n lexer.acceptDigitRun()\n lexer.emit(lunr.QueryLexer.EDIT_DISTANCE)\n return lunr.QueryLexer.lexText\n}\n\nlunr.QueryLexer.lexBoost = function (lexer) {\n lexer.ignore()\n lexer.acceptDigitRun()\n lexer.emit(lunr.QueryLexer.BOOST)\n return lunr.QueryLexer.lexText\n}\n\nlunr.QueryLexer.lexEOS = function (lexer) {\n if (lexer.width() > 0) {\n lexer.emit(lunr.QueryLexer.TERM)\n }\n}\n\n// This matches the separator used when tokenising fields\n// within a document. These should match otherwise it is\n// not possible to search for some tokens within a document.\n//\n// It is possible for the user to change the separator on the\n// tokenizer so it _might_ clash with any other of the special\n// characters already used within the search string, e.g. :.\n//\n// This means that it is possible to change the separator in\n// such a way that makes some words unsearchable using a search\n// string.\nlunr.QueryLexer.termSeparator = lunr.tokenizer.separator\n\nlunr.QueryLexer.lexText = function (lexer) {\n while (true) {\n var char = lexer.next()\n\n if (char == lunr.QueryLexer.EOS) {\n return lunr.QueryLexer.lexEOS\n }\n\n // Escape character is '\\'\n if (char.charCodeAt(0) == 92) {\n lexer.escapeCharacter()\n continue\n }\n\n if (char == \":\") {\n return lunr.QueryLexer.lexField\n }\n\n if (char == \"~\") {\n lexer.backup()\n if (lexer.width() > 0) {\n lexer.emit(lunr.QueryLexer.TERM)\n }\n return lunr.QueryLexer.lexEditDistance\n }\n\n if (char == \"^\") {\n lexer.backup()\n if (lexer.width() > 0) {\n lexer.emit(lunr.QueryLexer.TERM)\n }\n return lunr.QueryLexer.lexBoost\n }\n\n // \"+\" indicates term presence is required\n // checking for length to ensure that only\n // leading \"+\" are considered\n if (char == \"+\" && lexer.width() === 1) {\n lexer.emit(lunr.QueryLexer.PRESENCE)\n return lunr.QueryLexer.lexText\n }\n\n // \"-\" indicates term presence is prohibited\n // checking for length to ensure that only\n // leading \"-\" are considered\n if (char == \"-\" && lexer.width() === 1) {\n lexer.emit(lunr.QueryLexer.PRESENCE)\n return lunr.QueryLexer.lexText\n }\n\n if (char.match(lunr.QueryLexer.termSeparator)) {\n return lunr.QueryLexer.lexTerm\n }\n }\n}\n\nlunr.QueryParser = function (str, query) {\n this.lexer = new lunr.QueryLexer (str)\n this.query = query\n this.currentClause = {}\n this.lexemeIdx = 0\n}\n\nlunr.QueryParser.prototype.parse = function () {\n this.lexer.run()\n this.lexemes = this.lexer.lexemes\n\n var state = lunr.QueryParser.parseClause\n\n while (state) {\n state = state(this)\n }\n\n return this.query\n}\n\nlunr.QueryParser.prototype.peekLexeme = function () {\n return this.lexemes[this.lexemeIdx]\n}\n\nlunr.QueryParser.prototype.consumeLexeme = function () {\n var lexeme = this.peekLexeme()\n this.lexemeIdx += 1\n return lexeme\n}\n\nlunr.QueryParser.prototype.nextClause = function () {\n var completedClause = this.currentClause\n this.query.clause(completedClause)\n this.currentClause = {}\n}\n\nlunr.QueryParser.parseClause = function (parser) {\n var lexeme = parser.peekLexeme()\n\n if (lexeme == undefined) {\n return\n }\n\n switch (lexeme.type) {\n case lunr.QueryLexer.PRESENCE:\n return lunr.QueryParser.parsePresence\n case lunr.QueryLexer.FIELD:\n return lunr.QueryParser.parseField\n case lunr.QueryLexer.TERM:\n return lunr.QueryParser.parseTerm\n default:\n var errorMessage = \"expected either a field or a term, found \" + lexeme.type\n\n if (lexeme.str.length >= 1) {\n errorMessage += \" with value '\" + lexeme.str + \"'\"\n }\n\n throw new lunr.QueryParseError (errorMessage, lexeme.start, lexeme.end)\n }\n}\n\nlunr.QueryParser.parsePresence = function (parser) {\n var lexeme = parser.consumeLexeme()\n\n if (lexeme == undefined) {\n return\n }\n\n switch (lexeme.str) {\n case \"-\":\n parser.currentClause.presence = lunr.Query.presence.PROHIBITED\n break\n case \"+\":\n parser.currentClause.presence = lunr.Query.presence.REQUIRED\n break\n default:\n var errorMessage = \"unrecognised presence operator'\" + lexeme.str + \"'\"\n throw new lunr.QueryParseError (errorMessage, lexeme.start, lexeme.end)\n }\n\n var nextLexeme = parser.peekLexeme()\n\n if (nextLexeme == undefined) {\n var errorMessage = \"expecting term or field, found nothing\"\n throw new lunr.QueryParseError (errorMessage, lexeme.start, lexeme.end)\n }\n\n switch (nextLexeme.type) {\n case lunr.QueryLexer.FIELD:\n return lunr.QueryParser.parseField\n case lunr.QueryLexer.TERM:\n return lunr.QueryParser.parseTerm\n default:\n var errorMessage = \"expecting term or field, found '\" + nextLexeme.type + \"'\"\n throw new lunr.QueryParseError (errorMessage, nextLexeme.start, nextLexeme.end)\n }\n}\n\nlunr.QueryParser.parseField = function (parser) {\n var lexeme = parser.consumeLexeme()\n\n if (lexeme == undefined) {\n return\n }\n\n if (parser.query.allFields.indexOf(lexeme.str) == -1) {\n var possibleFields = parser.query.allFields.map(function (f) { return \"'\" + f + \"'\" }).join(', '),\n errorMessage = \"unrecognised field '\" + lexeme.str + \"', possible fields: \" + possibleFields\n\n throw new lunr.QueryParseError (errorMessage, lexeme.start, lexeme.end)\n }\n\n parser.currentClause.fields = [lexeme.str]\n\n var nextLexeme = parser.peekLexeme()\n\n if (nextLexeme == undefined) {\n var errorMessage = \"expecting term, found nothing\"\n throw new lunr.QueryParseError (errorMessage, lexeme.start, lexeme.end)\n }\n\n switch (nextLexeme.type) {\n case lunr.QueryLexer.TERM:\n return lunr.QueryParser.parseTerm\n default:\n var errorMessage = \"expecting term, found '\" + nextLexeme.type + \"'\"\n throw new lunr.QueryParseError (errorMessage, nextLexeme.start, nextLexeme.end)\n }\n}\n\nlunr.QueryParser.parseTerm = function (parser) {\n var lexeme = parser.consumeLexeme()\n\n if (lexeme == undefined) {\n return\n }\n\n parser.currentClause.term = lexeme.str.toLowerCase()\n\n if (lexeme.str.indexOf(\"*\") != -1) {\n parser.currentClause.usePipeline = false\n }\n\n var nextLexeme = parser.peekLexeme()\n\n if (nextLexeme == undefined) {\n parser.nextClause()\n return\n }\n\n switch (nextLexeme.type) {\n case lunr.QueryLexer.TERM:\n parser.nextClause()\n return lunr.QueryParser.parseTerm\n case lunr.QueryLexer.FIELD:\n parser.nextClause()\n return lunr.QueryParser.parseField\n case lunr.QueryLexer.EDIT_DISTANCE:\n return lunr.QueryParser.parseEditDistance\n case lunr.QueryLexer.BOOST:\n return lunr.QueryParser.parseBoost\n case lunr.QueryLexer.PRESENCE:\n parser.nextClause()\n return lunr.QueryParser.parsePresence\n default:\n var errorMessage = \"Unexpected lexeme type '\" + nextLexeme.type + \"'\"\n throw new lunr.QueryParseError (errorMessage, nextLexeme.start, nextLexeme.end)\n }\n}\n\nlunr.QueryParser.parseEditDistance = function (parser) {\n var lexeme = parser.consumeLexeme()\n\n if (lexeme == undefined) {\n return\n }\n\n var editDistance = parseInt(lexeme.str, 10)\n\n if (isNaN(editDistance)) {\n var errorMessage = \"edit distance must be numeric\"\n throw new lunr.QueryParseError (errorMessage, lexeme.start, lexeme.end)\n }\n\n parser.currentClause.editDistance = editDistance\n\n var nextLexeme = parser.peekLexeme()\n\n if (nextLexeme == undefined) {\n parser.nextClause()\n return\n }\n\n switch (nextLexeme.type) {\n case lunr.QueryLexer.TERM:\n parser.nextClause()\n return lunr.QueryParser.parseTerm\n case lunr.QueryLexer.FIELD:\n parser.nextClause()\n return lunr.QueryParser.parseField\n case lunr.QueryLexer.EDIT_DISTANCE:\n return lunr.QueryParser.parseEditDistance\n case lunr.QueryLexer.BOOST:\n return lunr.QueryParser.parseBoost\n case lunr.QueryLexer.PRESENCE:\n parser.nextClause()\n return lunr.QueryParser.parsePresence\n default:\n var errorMessage = \"Unexpected lexeme type '\" + nextLexeme.type + \"'\"\n throw new lunr.QueryParseError (errorMessage, nextLexeme.start, nextLexeme.end)\n }\n}\n\nlunr.QueryParser.parseBoost = function (parser) {\n var lexeme = parser.consumeLexeme()\n\n if (lexeme == undefined) {\n return\n }\n\n var boost = parseInt(lexeme.str, 10)\n\n if (isNaN(boost)) {\n var errorMessage = \"boost must be numeric\"\n throw new lunr.QueryParseError (errorMessage, lexeme.start, lexeme.end)\n }\n\n parser.currentClause.boost = boost\n\n var nextLexeme = parser.peekLexeme()\n\n if (nextLexeme == undefined) {\n parser.nextClause()\n return\n }\n\n switch (nextLexeme.type) {\n case lunr.QueryLexer.TERM:\n parser.nextClause()\n return lunr.QueryParser.parseTerm\n case lunr.QueryLexer.FIELD:\n parser.nextClause()\n return lunr.QueryParser.parseField\n case lunr.QueryLexer.EDIT_DISTANCE:\n return lunr.QueryParser.parseEditDistance\n case lunr.QueryLexer.BOOST:\n return lunr.QueryParser.parseBoost\n case lunr.QueryLexer.PRESENCE:\n parser.nextClause()\n return lunr.QueryParser.parsePresence\n default:\n var errorMessage = \"Unexpected lexeme type '\" + nextLexeme.type + \"'\"\n throw new lunr.QueryParseError (errorMessage, nextLexeme.start, nextLexeme.end)\n }\n}\n\n /**\n * export the module via AMD, CommonJS or as a browser global\n * Export code from https://github.com/umdjs/umd/blob/master/returnExports.js\n */\n ;(function (root, factory) {\n if (true) {\n // AMD. Register as an anonymous module.\n !(__WEBPACK_AMD_DEFINE_FACTORY__ = (factory),\n\t\t__WEBPACK_AMD_DEFINE_RESULT__ = (typeof __WEBPACK_AMD_DEFINE_FACTORY__ === 'function' ?\n\t\t(__WEBPACK_AMD_DEFINE_FACTORY__.call(exports, __webpack_require__, exports, module)) :\n\t\t__WEBPACK_AMD_DEFINE_FACTORY__),\n\t\t__WEBPACK_AMD_DEFINE_RESULT__ !== undefined && (module.exports = __WEBPACK_AMD_DEFINE_RESULT__))\n } else {}\n }(this, function () {\n /**\n * Just return a value to define the module export.\n * This example returns an object, but the module\n * can return a function as the exported value.\n */\n return lunr\n }))\n})();\n\n\n//# sourceURL=webpack://%5Bname%5D/./node_modules/lunr/lunr.js?");
-
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+/*! For license information please see eczsearch.js.LICENSE.txt */
+var eczsearch;(()=>{var e={336:(e,t,r)=>{var i,n;!function(){var s,o,a,l,u,c,h,d,f,p,y,m,g,x,v,w,_,E,Q,b,S,k,L,T,P,O,I=function(e){var t=new I.Builder;return t.pipeline.add(I.trimmer,I.stopWordFilter,I.stemmer),t.searchPipeline.add(I.stemmer),e.call(t,t),t.build()};I.version="2.3.9",I.utils={},I.utils.warn=(s=this,function(e){s.console&&console.warn&&console.warn(e)}),I.utils.asString=function(e){return null==e?"":e.toString()},I.utils.clone=function(e){if(null==e)return e;for(var t=Object.create(null),r=Object.keys(e),i=0;i0){var l=I.utils.clone(t)||{};l.position=[o,a],l.index=n.length,n.push(new I.Token(r.slice(o,s),l))}o=s+1}}return n},I.tokenizer.separator=/[\s\-]+/,I.Pipeline=function(){this._stack=[]},I.Pipeline.registeredFunctions=Object.create(null),I.Pipeline.registerFunction=function(e,t){t in this.registeredFunctions&&I.utils.warn("Overwriting existing registered function: "+t),e.label=t,I.Pipeline.registeredFunctions[e.label]=e},I.Pipeline.warnIfFunctionNotRegistered=function(e){e.label&&e.label in this.registeredFunctions||I.utils.warn("Function is not registered with pipeline. This may cause problems when serialising the index.\n",e)},I.Pipeline.load=function(e){var t=new I.Pipeline;return e.forEach((function(e){var r=I.Pipeline.registeredFunctions[e];if(!r)throw new Error("Cannot load unregistered function: "+e);t.add(r)})),t},I.Pipeline.prototype.add=function(){var e=Array.prototype.slice.call(arguments);e.forEach((function(e){I.Pipeline.warnIfFunctionNotRegistered(e),this._stack.push(e)}),this)},I.Pipeline.prototype.after=function(e,t){I.Pipeline.warnIfFunctionNotRegistered(t);var r=this._stack.indexOf(e);if(-1==r)throw new Error("Cannot find existingFn");r+=1,this._stack.splice(r,0,t)},I.Pipeline.prototype.before=function(e,t){I.Pipeline.warnIfFunctionNotRegistered(t);var r=this._stack.indexOf(e);if(-1==r)throw new Error("Cannot find existingFn");this._stack.splice(r,0,t)},I.Pipeline.prototype.remove=function(e){var t=this._stack.indexOf(e);-1!=t&&this._stack.splice(t,1)},I.Pipeline.prototype.run=function(e){for(var 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I.Query(this.fields),r=Object.create(null),i=Object.create(null),n=Object.create(null),s=Object.create(null),o=Object.create(null),a=0;a1?1:e},I.Builder.prototype.k1=function(e){this._k1=e},I.Builder.prototype.add=function(e,t){var r=e[this._ref],i=Object.keys(this._fields);this._documents[r]=t||{},this.documentCount+=1;for(var n=0;n=this.length)return I.QueryLexer.EOS;var e=this.str.charAt(this.pos);return this.pos+=1,e},I.QueryLexer.prototype.width=function(){return this.pos-this.start},I.QueryLexer.prototype.ignore=function(){this.start==this.pos&&(this.pos+=1),this.start=this.pos},I.QueryLexer.prototype.backup=function(){this.pos-=1},I.QueryLexer.prototype.acceptDigitRun=function(){var e,t;do{t=(e=this.next()).charCodeAt(0)}while(t>47&&t<58);e!=I.QueryLexer.EOS&&this.backup()},I.QueryLexer.prototype.more=function(){return this.pos1&&(e.backup(),e.emit(I.QueryLexer.TERM)),e.ignore(),e.more())return I.QueryLexer.lexText},I.QueryLexer.lexEditDistance=function(e){return e.ignore(),e.acceptDigitRun(),e.emit(I.QueryLexer.EDIT_DISTANCE),I.QueryLexer.lexText},I.QueryLexer.lexBoost=function(e){return e.ignore(),e.acceptDigitRun(),e.emit(I.QueryLexer.BOOST),I.QueryLexer.lexText},I.QueryLexer.lexEOS=function(e){e.width()>0&&e.emit(I.QueryLexer.TERM)},I.QueryLexer.termSeparator=I.tokenizer.separator,I.QueryLexer.lexText=function(e){for(;;){var t=e.next();if(t==I.QueryLexer.EOS)return I.QueryLexer.lexEOS;if(92!=t.charCodeAt(0)){if(":"==t)return I.QueryLexer.lexField;if("~"==t)return e.backup(),e.width()>0&&e.emit(I.QueryLexer.TERM),I.QueryLexer.lexEditDistance;if("^"==t)return e.backup(),e.width()>0&&e.emit(I.QueryLexer.TERM),I.QueryLexer.lexBoost;if("+"==t&&1===e.width())return e.emit(I.QueryLexer.PRESENCE),I.QueryLexer.lexText;if("-"==t&&1===e.width())return e.emit(I.QueryLexer.PRESENCE),I.QueryLexer.lexText;if(t.match(I.QueryLexer.termSeparator))return I.QueryLexer.lexTerm}else e.escapeCharacter()}},I.QueryParser=function(e,t){this.lexer=new I.QueryLexer(e),this.query=t,this.currentClause={},this.lexemeIdx=0},I.QueryParser.prototype.parse=function(){this.lexer.run(),this.lexemes=this.lexer.lexemes;for(var e=I.QueryParser.parseClause;e;)e=e(this);return this.query},I.QueryParser.prototype.peekLexeme=function(){return this.lexemes[this.lexemeIdx]},I.QueryParser.prototype.consumeLexeme=function(){var e=this.peekLexeme();return this.lexemeIdx+=1,e},I.QueryParser.prototype.nextClause=function(){var e=this.currentClause;this.query.clause(e),this.currentClause={}},I.QueryParser.parseClause=function(e){var t=e.peekLexeme();if(null!=t)switch(t.type){case I.QueryLexer.PRESENCE:return I.QueryParser.parsePresence;case I.QueryLexer.FIELD:return I.QueryParser.parseField;case I.QueryLexer.TERM:return I.QueryParser.parseTerm;default:var r="expected either a field or a term, found "+t.type;throw t.str.length>=1&&(r+=" with value '"+t.str+"'"),new I.QueryParseError(r,t.start,t.end)}},I.QueryParser.parsePresence=function(e){var t=e.consumeLexeme();if(null!=t){switch(t.str){case"-":e.currentClause.presence=I.Query.presence.PROHIBITED;break;case"+":e.currentClause.presence=I.Query.presence.REQUIRED;break;default:var r="unrecognised presence operator'"+t.str+"'";throw new I.QueryParseError(r,t.start,t.end)}var i=e.peekLexeme();if(null==i)throw r="expecting term or field, found nothing",new I.QueryParseError(r,t.start,t.end);switch(i.type){case I.QueryLexer.FIELD:return I.QueryParser.parseField;case I.QueryLexer.TERM:return I.QueryParser.parseTerm;default:throw r="expecting term or field, found '"+i.type+"'",new I.QueryParseError(r,i.start,i.end)}}},I.QueryParser.parseField=function(e){var t=e.consumeLexeme();if(null!=t){if(-1==e.query.allFields.indexOf(t.str)){var r=e.query.allFields.map((function(e){return"'"+e+"'"})).join(", "),i="unrecognised field '"+t.str+"', possible fields: "+r;throw new I.QueryParseError(i,t.start,t.end)}e.currentClause.fields=[t.str];var n=e.peekLexeme();if(null==n)throw i="expecting term, found nothing",new I.QueryParseError(i,t.start,t.end);if(n.type===I.QueryLexer.TERM)return I.QueryParser.parseTerm;throw i="expecting term, found '"+n.type+"'",new I.QueryParseError(i,n.start,n.end)}},I.QueryParser.parseTerm=function(e){var t=e.consumeLexeme();if(null!=t){e.currentClause.term=t.str.toLowerCase(),-1!=t.str.indexOf("*")&&(e.currentClause.usePipeline=!1);var r=e.peekLexeme();if(null!=r)switch(r.type){case I.QueryLexer.TERM:return e.nextClause(),I.QueryParser.parseTerm;case I.QueryLexer.FIELD:return e.nextClause(),I.QueryParser.parseField;case I.QueryLexer.EDIT_DISTANCE:return I.QueryParser.parseEditDistance;case I.QueryLexer.BOOST:return I.QueryParser.parseBoost;case I.QueryLexer.PRESENCE:return e.nextClause(),I.QueryParser.parsePresence;default:var i="Unexpected lexeme type '"+r.type+"'";throw new I.QueryParseError(i,r.start,r.end)}else e.nextClause()}},I.QueryParser.parseEditDistance=function(e){var t=e.consumeLexeme();if(null!=t){var r=parseInt(t.str,10);if(isNaN(r)){var i="edit distance must be numeric";throw new I.QueryParseError(i,t.start,t.end)}e.currentClause.editDistance=r;var n=e.peekLexeme();if(null!=n)switch(n.type){case I.QueryLexer.TERM:return e.nextClause(),I.QueryParser.parseTerm;case I.QueryLexer.FIELD:return e.nextClause(),I.QueryParser.parseField;case I.QueryLexer.EDIT_DISTANCE:return I.QueryParser.parseEditDistance;case I.QueryLexer.BOOST:return I.QueryParser.parseBoost;case I.QueryLexer.PRESENCE:return e.nextClause(),I.QueryParser.parsePresence;default:throw i="Unexpected lexeme type '"+n.type+"'",new I.QueryParseError(i,n.start,n.end)}else e.nextClause()}},I.QueryParser.parseBoost=function(e){var t=e.consumeLexeme();if(null!=t){var r=parseInt(t.str,10);if(isNaN(r)){var i="boost must be numeric";throw new I.QueryParseError(i,t.start,t.end)}e.currentClause.boost=r;var n=e.peekLexeme();if(null!=n)switch(n.type){case I.QueryLexer.TERM:return e.nextClause(),I.QueryParser.parseTerm;case I.QueryLexer.FIELD:return e.nextClause(),I.QueryParser.parseField;case I.QueryLexer.EDIT_DISTANCE:return I.QueryParser.parseEditDistance;case I.QueryLexer.BOOST:return I.QueryParser.parseBoost;case I.QueryLexer.PRESENCE:return e.nextClause(),I.QueryParser.parsePresence;default:throw i="Unexpected lexeme type '"+n.type+"'",new I.QueryParseError(i,n.start,n.end)}else e.nextClause()}},void 0===(n="function"==typeof(i=function(){return I})?i.call(t,r,t,e):i)||(e.exports=n)}()}},t={};function r(i){var n=t[i];if(void 0!==n)return n.exports;var s=t[i]={exports:{}};return e[i](s,s.exports,r),s.exports}r.n=e=>{var t=e&&e.__esModule?()=>e.default:()=>e;return r.d(t,{a:t}),t},r.d=(e,t)=>{for(var i in t)r.o(t,i)&&!r.o(e,i)&&Object.defineProperty(e,i,{enumerable:!0,get:t[i]})},r.o=(e,t)=>Object.prototype.hasOwnProperty.call(e,t),r.r=e=>{"undefined"!=typeof Symbol&&Symbol.toStringTag&&Object.defineProperty(e,Symbol.toStringTag,{value:"Module"}),Object.defineProperty(e,"__esModule",{value:!0})};var i={};(()=>{"use strict";r.r(i),r.d(i,{EczooSearchWidget:()=>s,default:()=>a});var e=r(336),t=r.n(e);function n(e){var t=document.createElement("p");return t.appendChild(document.createTextNode(e)),t.innerHTML}class s{constructor(e){if(this.search_widget_container=e.search_widget_container,this.fields=e.fields,this.ref_field=e.ref_field,this.title_field=e.title_field,this.href_field=e.href_field,this.context_length=e.context_length,void 0===this.context_length&&(this.context_length=50),this.idx=e.idx,this.store_fetch_json=e.store_fetch_json,void 0===this.store_fetch_json)this._set_store_and_install(e.store);else{if(void 0!==this.store)throw Error("EczooSearchFunction: don't specify both store: and store_fetch_json: ");fetch(this.store_fetch_json).then((e=>e.json())).then((e=>this._set_store_and_install(e)))}}_set_store_and_install(e){if(this.store=e,console.log("Got store. Store = ",e),void 0===this.store)throw Error("EczooSearchFunction: no store specified or none found");if(void 0===this.fields||0==this.fields.length){var r=[];Object.keys(this.store).forEach((e=>{var t=this.store[e];Object.keys(t).forEach((e=>{-1==r.indexOf(e)&&r.push(e)}))})),this.fields=r}if(void 0===this.idx){var i=this;const e=function(){var e=this;e.ref(i.ref_field),i.fields.forEach((t=>e.field(t))),e.metadataWhitelist=["position"],Object.keys(i.store).forEach((function(t){const r=i.store[t];e.add(r)}),e)};this.idx=t()(e)}this._do_install()}_do_install(){console.log("Installing the search widget in the page."),this.search_widget_container.innerHTML="";const e=document.createElement("input");e.setAttribute("type","text"),e.classList.add("search-input"),e.value="",e.placeholder="type & hit RETURN to search",this.search_widget_container.appendChild(e),this.search_input=e;const t=document.createElement("div");t.classList.add("search-results"),this.search_widget_container.appendChild(t),this.search_results_container=t,this.search_input.addEventListener("change",(e=>this._do_search(e)))}_do_search(e){this.search_results_container.innerHTML="";const r=e.target.value;if(r&&0!=r.trim().length){var i;console.log("Searching! value =",r);try{i=this.idx.search(r)}catch(e){if(e instanceof t().QueryParseError)return void this._display_search_error(r,e);throw e}console.log("results =",i),this._display_search_results(r,i)}else this._display_search_no_query_string()}_display_search_no_query_string(){const e=document.createElement("p");e.classList.add("search-no-query-string"),e.textContent="Type a few words above and hit “RETURN” to search the error correction zoo.",this.search_results_container.appendChild(e)}_display_search_error(e,t){console.log("Error in search.",t);const r=document.createElement("p");r.classList.add("search-results-error");const i=document.createElement("span");i.textContent="Error in search query ‘"+e+"’: ",r.appendChild(i);const n=document.createElement("span");n.classList.add("search-results-error-message"),n.textContent=t.message,r.appendChild(n);const s=document.createElement("a");s.classList.add("search-query-info"),s.setAttribute("href","https://lunrjs.com/guides/searching.html"),s.setAttribute("target","_blank"),s.textContent="(more information on search syntax)",r.appendChild(s),this.search_results_container.appendChild(r)}_display_search_results(e,t){0==t.length?this._display_search_no_results(e):(t.forEach((e=>this._add_display_result(e,this.search_results_container))),t.length<100&&"undefined"!=typeof MathJax&&MathJax.typeset())}_display_search_no_results(e){const t=document.createElement("p");t.classList.add("search-no-results"),t.textContent="Your search for ‘"+e+"’ did not yield any results.";const r=document.createElement("a");r.classList.add("search-query-info"),r.setAttribute("href","https://lunrjs.com/guides/searching.html"),r.setAttribute("target","_blank"),r.textContent="(more information on search syntax)",t.appendChild(r),this.search_results_container.appendChild(t)}_add_display_result(e,t){const r=this.store[e.ref],i=document.createElement("div");i.classList.add("search-result");var s=document.createElement("div");if(s.classList.add("search-result-title"),i.appendChild(s),this.href_field){var o=document.createElement("a");o.setAttribute("href",r[this.href_field]),o.classList.add("search-result-link"),s.appendChild(o),s=o}s.innerText=r[this.title_field];const a={};Object.keys(e.matchData.metadata).forEach((t=>{const r=e.matchData.metadata[t];Object.keys(r).forEach((e=>{const t=r[e].position;a.hasOwnProperty(e)||(a[e]=[]),a[e]=a[e].concat(t)}))}));const l=this.context_length;for(const e of this.fields){if(!a.hasOwnProperty(e))continue;const t=a[e];t.sort(((e,t)=>e[0]-t[0])),t.forEach(((e,r)=>rt[r+1][0]?[e[0],t[r+1][0]-e[0]]:[e[0],e[1]]));const s=r[e];var u="",c=0;for(const e of t)c>0&&e[0]-c<2*l||0==c&&e[0]'+n(s.substr(e[0],e[1]))+"",c=e[0]+e[1];s.length>c+l?u+=n(s.substr(c,l))+"…":u+=n(s.substr(c)),u+=''+n(e)+"";const o=document.createElement("div");o.classList.add("search-result-field-display");var h=e.replace(/[^a-zA-Z0-9_-]/g,"");o.classList.add("search-result-field-display--"+h),o.innerHTML=u,i.appendChild(o)}t.appendChild(i)}}function o(){console.log("Initialization code for possible search widget.");const e=document.getElementById("EczooSearchWidget");if(e){console.log("Initializing search widget.");var t=e.dataset.searchWidgetFields;t&&(t=fieldsval.split(",").map((e=>e.trim())));var r=e.dataset.searchWidgetContextLength;r&&(r=Number.parseInt(r)),window.eczoo_search_widget=new s({search_widget_container:e,store_fetch_json:e.dataset.searchWidgetStoreFetchJson,fields:t,ref_field:e.dataset.searchWidgetRefField,title_field:e.dataset.searchWidgetTitleField,href_field:e.dataset.searchWidgetHrefField,context_length:r})}}"complete"===document.readyState?o():(console.log("window = ",window),window.addEventListener("load",o));const a={EczooSearchWidget:s}})(),eczsearch=i})();
\ No newline at end of file
diff --git a/jscomponents/dist/ecztooldecodesubmittedjson.js b/jscomponents/dist/ecztooldecodesubmittedjson.js
index 0b72839..7bed638 100644
--- a/jscomponents/dist/ecztooldecodesubmittedjson.js
+++ b/jscomponents/dist/ecztooldecodesubmittedjson.js
@@ -1,898 +1,2 @@
-/*
- * ATTENTION: The "eval" devtool has been used (maybe by default in mode: "development").
- * This devtool is neither made for production nor for readable output files.
- * It uses "eval()" calls to create a separate source file in the browser devtools.
- * If you are trying to read the output file, select a different devtool (https://webpack.js.org/configuration/devtool/)
- * or disable the default devtool with "devtool: false".
- * If you are looking for production-ready output files, see mode: "production" (https://webpack.js.org/configuration/mode/).
- */
-var ecztooldecodesubmittedjson;
-/******/ (() => { // webpackBootstrap
-/******/ "use strict";
-/******/ var __webpack_modules__ = ({
-
-/***/ "./src/ecztooldecodesubmittedjson/EczToolDecodeSubmittedJsonCode.jsx":
-/*!***************************************************************************!*\
- !*** ./src/ecztooldecodesubmittedjson/EczToolDecodeSubmittedJsonCode.jsx ***!
- \***************************************************************************/
-/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {
-
-eval("__webpack_require__.r(__webpack_exports__);\n/* harmony export */ __webpack_require__.d(__webpack_exports__, {\n/* harmony export */ \"default\": () => (/* binding */ EczToolDecodeSubmittedJsonCode)\n/* harmony export */ });\n/* harmony import */ var react__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! react */ \"./node_modules/react/index.js\");\n/* harmony import */ var yaml__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! yaml */ \"./node_modules/yaml/browser/index.js\");\n\n\nclass EczToolDecodeSubmittedJsonCode extends react__WEBPACK_IMPORTED_MODULE_0__.Component {\n render() {\n var output_yaml_code = '';\n\n if (this.state) {\n output_yaml_code = this.state.output_yaml_code;\n }\n\n return /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0__.createElement(\"div\", {\n className: \"EczToolDecodeSubmittedJsonCode\"\n }, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0__.createElement(\"input\", {\n type: \"file\",\n onChange: event => this.set_file_input(event)\n }), /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0__.createElement(\"textarea\", {\n className: \"output-yaml-code\",\n defaultValue: output_yaml_code\n }));\n }\n\n set_file_input(event) {\n const elem = event.target;\n const file = elem.files[0];\n\n if (!file) {\n this.setState({\n output_yaml_code: ''\n });\n return;\n }\n\n file.text().then(text_content => this.set_json_content(text_content));\n }\n\n set_json_content(json) {\n console.log(\"Got JSON = \", json);\n const d = JSON.parse(json);\n const yamldoc = new yaml__WEBPACK_IMPORTED_MODULE_1__[\"default\"].Document(d);\n yaml__WEBPACK_IMPORTED_MODULE_1__[\"default\"].visit(yamldoc, {\n Scalar(key, node) {\n console.log('string; key =', key, ' node =', node);\n\n if (key == 'key') {\n node.type = 'PLAIN';\n } else if (typeof node.value === 'string') {\n if (node.value.indexOf('\\n') == -1) {\n node.type = 'QUOTE_SINGLE';\n } else {\n node.type = 'BLOCK_LITERAL';\n }\n }\n }\n\n });\n const yamlcode = yamldoc.toString();\n console.log(\"Got YaML = \", yamlcode);\n this.setState({\n output_yaml_code: yamlcode\n });\n }\n\n}\n;\n\n//# sourceURL=webpack://%5Bname%5D/./src/ecztooldecodesubmittedjson/EczToolDecodeSubmittedJsonCode.jsx?");
-
-/***/ }),
-
-/***/ "./src/ecztooldecodesubmittedjson/index.js":
-/*!*************************************************!*\
- !*** ./src/ecztooldecodesubmittedjson/index.js ***!
- \*************************************************/
-/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {
-
-eval("__webpack_require__.r(__webpack_exports__);\n/* harmony export */ __webpack_require__.d(__webpack_exports__, {\n/* harmony export */ \"default\": () => (__WEBPACK_DEFAULT_EXPORT__)\n/* harmony export */ });\n/* harmony import */ var react__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! react */ \"./node_modules/react/index.js\");\n/* harmony import */ var react_dom__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! react-dom */ \"./node_modules/react-dom/index.js\");\n/* harmony import */ var _EczToolDecodeSubmittedJsonCode_jsx__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ./EczToolDecodeSubmittedJsonCode.jsx */ \"./src/ecztooldecodesubmittedjson/EczToolDecodeSubmittedJsonCode.jsx\");\n\n\n\n/* harmony default export */ const __WEBPACK_DEFAULT_EXPORT__ = (_EczToolDecodeSubmittedJsonCode_jsx__WEBPACK_IMPORTED_MODULE_2__[\"default\"]);\nwindow.addEventListener('load', () => {\n react_dom__WEBPACK_IMPORTED_MODULE_1__.render( /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0__.createElement(_EczToolDecodeSubmittedJsonCode_jsx__WEBPACK_IMPORTED_MODULE_2__[\"default\"], null), document.getElementById(\"EczToolDecodeSubmittedJsonCode\"));\n});\n\n//# sourceURL=webpack://%5Bname%5D/./src/ecztooldecodesubmittedjson/index.js?");
-
-/***/ }),
-
-/***/ "./node_modules/object-assign/index.js":
-/*!*********************************************!*\
- !*** ./node_modules/object-assign/index.js ***!
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-/***/ ((module) => {
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-eval("/*\nobject-assign\n(c) Sindre Sorhus\n@license MIT\n*/\n\n\n/* eslint-disable no-unused-vars */\nvar getOwnPropertySymbols = Object.getOwnPropertySymbols;\nvar hasOwnProperty = Object.prototype.hasOwnProperty;\nvar propIsEnumerable = Object.prototype.propertyIsEnumerable;\n\nfunction toObject(val) {\n\tif (val === null || val === undefined) {\n\t\tthrow new TypeError('Object.assign cannot be called with null or undefined');\n\t}\n\n\treturn Object(val);\n}\n\nfunction shouldUseNative() {\n\ttry {\n\t\tif (!Object.assign) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// Detect buggy property enumeration order in older V8 versions.\n\n\t\t// https://bugs.chromium.org/p/v8/issues/detail?id=4118\n\t\tvar test1 = new String('abc'); // eslint-disable-line no-new-wrappers\n\t\ttest1[5] = 'de';\n\t\tif (Object.getOwnPropertyNames(test1)[0] === '5') {\n\t\t\treturn false;\n\t\t}\n\n\t\t// https://bugs.chromium.org/p/v8/issues/detail?id=3056\n\t\tvar test2 = {};\n\t\tfor (var i = 0; i < 10; i++) {\n\t\t\ttest2['_' + String.fromCharCode(i)] = i;\n\t\t}\n\t\tvar order2 = Object.getOwnPropertyNames(test2).map(function (n) {\n\t\t\treturn test2[n];\n\t\t});\n\t\tif (order2.join('') !== '0123456789') {\n\t\t\treturn false;\n\t\t}\n\n\t\t// https://bugs.chromium.org/p/v8/issues/detail?id=3056\n\t\tvar test3 = {};\n\t\t'abcdefghijklmnopqrst'.split('').forEach(function (letter) {\n\t\t\ttest3[letter] = letter;\n\t\t});\n\t\tif (Object.keys(Object.assign({}, test3)).join('') !==\n\t\t\t\t'abcdefghijklmnopqrst') {\n\t\t\treturn false;\n\t\t}\n\n\t\treturn true;\n\t} catch (err) {\n\t\t// We don't expect any of the above to throw, but better to be safe.\n\t\treturn false;\n\t}\n}\n\nmodule.exports = shouldUseNative() ? Object.assign : function (target, source) {\n\tvar from;\n\tvar to = toObject(target);\n\tvar symbols;\n\n\tfor (var s = 1; s < arguments.length; s++) {\n\t\tfrom = Object(arguments[s]);\n\n\t\tfor (var key in from) {\n\t\t\tif (hasOwnProperty.call(from, key)) {\n\t\t\t\tto[key] = from[key];\n\t\t\t}\n\t\t}\n\n\t\tif (getOwnPropertySymbols) {\n\t\t\tsymbols = getOwnPropertySymbols(from);\n\t\t\tfor (var i = 0; i < symbols.length; i++) {\n\t\t\t\tif (propIsEnumerable.call(from, symbols[i])) {\n\t\t\t\t\tto[symbols[i]] = from[symbols[i]];\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\n\treturn to;\n};\n\n\n//# sourceURL=webpack://%5Bname%5D/./node_modules/object-assign/index.js?");
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-/***/ }),
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-/***/ "./node_modules/react-dom/cjs/react-dom.development.js":
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- !*** ./node_modules/react-dom/cjs/react-dom.development.js ***!
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-/***/ ((__unused_webpack_module, exports, __webpack_require__) => {
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-eval("/** @license React v17.0.2\n * react-dom.development.js\n *\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n */\n\n\n\nif (true) {\n (function() {\n'use strict';\n\nvar React = __webpack_require__(/*! react */ \"./node_modules/react/index.js\");\nvar _assign = __webpack_require__(/*! object-assign */ \"./node_modules/object-assign/index.js\");\nvar Scheduler = __webpack_require__(/*! scheduler */ \"./node_modules/scheduler/index.js\");\nvar tracing = __webpack_require__(/*! scheduler/tracing */ \"./node_modules/scheduler/tracing.js\");\n\nvar ReactSharedInternals = React.__SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED;\n\n// by calls to these methods by a Babel plugin.\n//\n// In PROD (or in packages without access to React internals),\n// they are left as they are instead.\n\nfunction warn(format) {\n {\n for (var _len = arguments.length, args = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {\n args[_key - 1] = arguments[_key];\n }\n\n printWarning('warn', format, args);\n }\n}\nfunction error(format) {\n {\n for (var _len2 = arguments.length, args = new Array(_len2 > 1 ? _len2 - 1 : 0), _key2 = 1; _key2 < _len2; _key2++) {\n args[_key2 - 1] = arguments[_key2];\n }\n\n printWarning('error', format, args);\n }\n}\n\nfunction printWarning(level, format, args) {\n // When changing this logic, you might want to also\n // update consoleWithStackDev.www.js as well.\n {\n var ReactDebugCurrentFrame = ReactSharedInternals.ReactDebugCurrentFrame;\n var stack = ReactDebugCurrentFrame.getStackAddendum();\n\n if (stack !== '') {\n format += '%s';\n args = args.concat([stack]);\n }\n\n var argsWithFormat = args.map(function (item) {\n return '' + item;\n }); // Careful: RN currently depends on this prefix\n\n argsWithFormat.unshift('Warning: ' + format); // We intentionally don't use spread (or .apply) directly because it\n // breaks IE9: https://github.com/facebook/react/issues/13610\n // eslint-disable-next-line react-internal/no-production-logging\n\n Function.prototype.apply.call(console[level], console, argsWithFormat);\n }\n}\n\nif (!React) {\n {\n throw Error( \"ReactDOM was loaded before React. Make sure you load the React package before loading ReactDOM.\" );\n }\n}\n\nvar FunctionComponent = 0;\nvar ClassComponent = 1;\nvar IndeterminateComponent = 2; // Before we know whether it is function or class\n\nvar HostRoot = 3; // Root of a host tree. Could be nested inside another node.\n\nvar HostPortal = 4; // A subtree. Could be an entry point to a different renderer.\n\nvar HostComponent = 5;\nvar HostText = 6;\nvar Fragment = 7;\nvar Mode = 8;\nvar ContextConsumer = 9;\nvar ContextProvider = 10;\nvar ForwardRef = 11;\nvar Profiler = 12;\nvar SuspenseComponent = 13;\nvar MemoComponent = 14;\nvar SimpleMemoComponent = 15;\nvar LazyComponent = 16;\nvar IncompleteClassComponent = 17;\nvar DehydratedFragment = 18;\nvar SuspenseListComponent = 19;\nvar FundamentalComponent = 20;\nvar ScopeComponent = 21;\nvar Block = 22;\nvar OffscreenComponent = 23;\nvar LegacyHiddenComponent = 24;\n\n// Filter certain DOM attributes (e.g. src, href) if their values are empty strings.\n\nvar enableProfilerTimer = true; // Record durations for commit and passive effects phases.\n\nvar enableFundamentalAPI = false; // Experimental Scope support.\nvar enableNewReconciler = false; // Errors that are thrown while unmounting (or after in the case of passive effects)\nvar warnAboutStringRefs = false;\n\nvar allNativeEvents = new Set();\n/**\n * Mapping from registration name to event name\n */\n\n\nvar registrationNameDependencies = {};\n/**\n * Mapping from lowercase registration names to the properly cased version,\n * used to warn in the case of missing event handlers. Available\n * only in true.\n * @type {Object}\n */\n\nvar possibleRegistrationNames = {} ; // Trust the developer to only use possibleRegistrationNames in true\n\nfunction registerTwoPhaseEvent(registrationName, dependencies) {\n registerDirectEvent(registrationName, dependencies);\n registerDirectEvent(registrationName + 'Capture', dependencies);\n}\nfunction registerDirectEvent(registrationName, dependencies) {\n {\n if (registrationNameDependencies[registrationName]) {\n error('EventRegistry: More than one plugin attempted to publish the same ' + 'registration name, `%s`.', registrationName);\n }\n }\n\n registrationNameDependencies[registrationName] = dependencies;\n\n {\n var lowerCasedName = registrationName.toLowerCase();\n possibleRegistrationNames[lowerCasedName] = registrationName;\n\n if (registrationName === 'onDoubleClick') {\n possibleRegistrationNames.ondblclick = registrationName;\n }\n }\n\n for (var i = 0; i < dependencies.length; i++) {\n allNativeEvents.add(dependencies[i]);\n }\n}\n\nvar canUseDOM = !!(typeof window !== 'undefined' && typeof window.document !== 'undefined' && typeof window.document.createElement !== 'undefined');\n\n// A reserved attribute.\n// It is handled by React separately and shouldn't be written to the DOM.\nvar RESERVED = 0; // A simple string attribute.\n// Attributes that aren't in the filter are presumed to have this type.\n\nvar STRING = 1; // A string attribute that accepts booleans in React. In HTML, these are called\n// \"enumerated\" attributes with \"true\" and \"false\" as possible values.\n// When true, it should be set to a \"true\" string.\n// When false, it should be set to a \"false\" string.\n\nvar BOOLEANISH_STRING = 2; // A real boolean attribute.\n// When true, it should be present (set either to an empty string or its name).\n// When false, it should be omitted.\n\nvar BOOLEAN = 3; // An attribute that can be used as a flag as well as with a value.\n// When true, it should be present (set either to an empty string or its name).\n// When false, it should be omitted.\n// For any other value, should be present with that value.\n\nvar OVERLOADED_BOOLEAN = 4; // An attribute that must be numeric or parse as a numeric.\n// When falsy, it should be removed.\n\nvar NUMERIC = 5; // An attribute that must be positive numeric or parse as a positive numeric.\n// When falsy, it should be removed.\n\nvar POSITIVE_NUMERIC = 6;\n\n/* eslint-disable max-len */\nvar ATTRIBUTE_NAME_START_CHAR = \":A-Z_a-z\\\\u00C0-\\\\u00D6\\\\u00D8-\\\\u00F6\\\\u00F8-\\\\u02FF\\\\u0370-\\\\u037D\\\\u037F-\\\\u1FFF\\\\u200C-\\\\u200D\\\\u2070-\\\\u218F\\\\u2C00-\\\\u2FEF\\\\u3001-\\\\uD7FF\\\\uF900-\\\\uFDCF\\\\uFDF0-\\\\uFFFD\";\n/* eslint-enable max-len */\n\nvar ATTRIBUTE_NAME_CHAR = ATTRIBUTE_NAME_START_CHAR + \"\\\\-.0-9\\\\u00B7\\\\u0300-\\\\u036F\\\\u203F-\\\\u2040\";\nvar ROOT_ATTRIBUTE_NAME = 'data-reactroot';\nvar VALID_ATTRIBUTE_NAME_REGEX = new RegExp('^[' + ATTRIBUTE_NAME_START_CHAR + '][' + ATTRIBUTE_NAME_CHAR + ']*$');\nvar hasOwnProperty = Object.prototype.hasOwnProperty;\nvar illegalAttributeNameCache = {};\nvar validatedAttributeNameCache = {};\nfunction isAttributeNameSafe(attributeName) {\n if (hasOwnProperty.call(validatedAttributeNameCache, attributeName)) {\n return true;\n }\n\n if (hasOwnProperty.call(illegalAttributeNameCache, attributeName)) {\n return false;\n }\n\n if (VALID_ATTRIBUTE_NAME_REGEX.test(attributeName)) {\n validatedAttributeNameCache[attributeName] = true;\n return true;\n }\n\n illegalAttributeNameCache[attributeName] = true;\n\n {\n error('Invalid attribute name: `%s`', attributeName);\n }\n\n return false;\n}\nfunction shouldIgnoreAttribute(name, propertyInfo, isCustomComponentTag) {\n if (propertyInfo !== null) {\n return propertyInfo.type === RESERVED;\n }\n\n if (isCustomComponentTag) {\n return false;\n }\n\n if (name.length > 2 && (name[0] === 'o' || name[0] === 'O') && (name[1] === 'n' || name[1] === 'N')) {\n return true;\n }\n\n return false;\n}\nfunction shouldRemoveAttributeWithWarning(name, value, propertyInfo, isCustomComponentTag) {\n if (propertyInfo !== null && propertyInfo.type === RESERVED) {\n return false;\n }\n\n switch (typeof value) {\n case 'function': // $FlowIssue symbol is perfectly valid here\n\n case 'symbol':\n // eslint-disable-line\n return true;\n\n case 'boolean':\n {\n if (isCustomComponentTag) {\n return false;\n }\n\n if (propertyInfo !== null) {\n return !propertyInfo.acceptsBooleans;\n } else {\n var prefix = name.toLowerCase().slice(0, 5);\n return prefix !== 'data-' && prefix !== 'aria-';\n }\n }\n\n default:\n return false;\n }\n}\nfunction shouldRemoveAttribute(name, value, propertyInfo, isCustomComponentTag) {\n if (value === null || typeof value === 'undefined') {\n return true;\n }\n\n if (shouldRemoveAttributeWithWarning(name, value, propertyInfo, isCustomComponentTag)) {\n return true;\n }\n\n if (isCustomComponentTag) {\n return false;\n }\n\n if (propertyInfo !== null) {\n\n switch (propertyInfo.type) {\n case BOOLEAN:\n return !value;\n\n case OVERLOADED_BOOLEAN:\n return value === false;\n\n case NUMERIC:\n return isNaN(value);\n\n case POSITIVE_NUMERIC:\n return isNaN(value) || value < 1;\n }\n }\n\n return false;\n}\nfunction getPropertyInfo(name) {\n return properties.hasOwnProperty(name) ? properties[name] : null;\n}\n\nfunction PropertyInfoRecord(name, type, mustUseProperty, attributeName, attributeNamespace, sanitizeURL, removeEmptyString) {\n this.acceptsBooleans = type === BOOLEANISH_STRING || type === BOOLEAN || type === OVERLOADED_BOOLEAN;\n this.attributeName = attributeName;\n this.attributeNamespace = attributeNamespace;\n this.mustUseProperty = mustUseProperty;\n this.propertyName = name;\n this.type = type;\n this.sanitizeURL = sanitizeURL;\n this.removeEmptyString = removeEmptyString;\n} // When adding attributes to this list, be sure to also add them to\n// the `possibleStandardNames` module to ensure casing and incorrect\n// name warnings.\n\n\nvar properties = {}; // These props are reserved by React. They shouldn't be written to the DOM.\n\nvar reservedProps = ['children', 'dangerouslySetInnerHTML', // TODO: This prevents the assignment of defaultValue to regular\n// elements (not just inputs). Now that ReactDOMInput assigns to the\n// defaultValue property -- do we need this?\n'defaultValue', 'defaultChecked', 'innerHTML', 'suppressContentEditableWarning', 'suppressHydrationWarning', 'style'];\nreservedProps.forEach(function (name) {\n properties[name] = new PropertyInfoRecord(name, RESERVED, false, // mustUseProperty\n name, // attributeName\n null, // attributeNamespace\n false, // sanitizeURL\n false);\n}); // A few React string attributes have a different name.\n// This is a mapping from React prop names to the attribute names.\n\n[['acceptCharset', 'accept-charset'], ['className', 'class'], ['htmlFor', 'for'], ['httpEquiv', 'http-equiv']].forEach(function (_ref) {\n var name = _ref[0],\n attributeName = _ref[1];\n properties[name] = new PropertyInfoRecord(name, STRING, false, // mustUseProperty\n attributeName, // attributeName\n null, // attributeNamespace\n false, // sanitizeURL\n false);\n}); // These are \"enumerated\" HTML attributes that accept \"true\" and \"false\".\n// In React, we let users pass `true` and `false` even though technically\n// these aren't boolean attributes (they are coerced to strings).\n\n['contentEditable', 'draggable', 'spellCheck', 'value'].forEach(function (name) {\n properties[name] = new PropertyInfoRecord(name, BOOLEANISH_STRING, false, // mustUseProperty\n name.toLowerCase(), // attributeName\n null, // attributeNamespace\n false, // sanitizeURL\n false);\n}); // These are \"enumerated\" SVG attributes that accept \"true\" and \"false\".\n// In React, we let users pass `true` and `false` even though technically\n// these aren't boolean attributes (they are coerced to strings).\n// Since these are SVG attributes, their attribute names are case-sensitive.\n\n['autoReverse', 'externalResourcesRequired', 'focusable', 'preserveAlpha'].forEach(function (name) {\n properties[name] = new PropertyInfoRecord(name, BOOLEANISH_STRING, false, // mustUseProperty\n name, // attributeName\n null, // attributeNamespace\n false, // sanitizeURL\n false);\n}); // These are HTML boolean attributes.\n\n['allowFullScreen', 'async', // Note: there is a special case that prevents it from being written to the DOM\n// on the client side because the browsers are inconsistent. Instead we call focus().\n'autoFocus', 'autoPlay', 'controls', 'default', 'defer', 'disabled', 'disablePictureInPicture', 'disableRemotePlayback', 'formNoValidate', 'hidden', 'loop', 'noModule', 'noValidate', 'open', 'playsInline', 'readOnly', 'required', 'reversed', 'scoped', 'seamless', // Microdata\n'itemScope'].forEach(function (name) {\n properties[name] = new PropertyInfoRecord(name, BOOLEAN, false, // mustUseProperty\n name.toLowerCase(), // attributeName\n null, // attributeNamespace\n false, // sanitizeURL\n false);\n}); // These are the few React props that we set as DOM properties\n// rather than attributes. These are all booleans.\n\n['checked', // Note: `option.selected` is not updated if `select.multiple` is\n// disabled with `removeAttribute`. We have special logic for handling this.\n'multiple', 'muted', 'selected' // NOTE: if you add a camelCased prop to this list,\n// you'll need to set attributeName to name.toLowerCase()\n// instead in the assignment below.\n].forEach(function (name) {\n properties[name] = new PropertyInfoRecord(name, BOOLEAN, true, // mustUseProperty\n name, // attributeName\n null, // attributeNamespace\n false, // sanitizeURL\n false);\n}); // These are HTML attributes that are \"overloaded booleans\": they behave like\n// booleans, but can also accept a string value.\n\n['capture', 'download' // NOTE: if you add a camelCased prop to this list,\n// you'll need to set attributeName to name.toLowerCase()\n// instead in the assignment below.\n].forEach(function (name) {\n properties[name] = new PropertyInfoRecord(name, OVERLOADED_BOOLEAN, false, // mustUseProperty\n name, // attributeName\n null, // attributeNamespace\n false, // sanitizeURL\n false);\n}); // These are HTML attributes that must be positive numbers.\n\n['cols', 'rows', 'size', 'span' // NOTE: if you add a camelCased prop to this list,\n// you'll need to set attributeName to name.toLowerCase()\n// instead in the assignment below.\n].forEach(function (name) {\n properties[name] = new PropertyInfoRecord(name, POSITIVE_NUMERIC, false, // mustUseProperty\n name, // attributeName\n null, // attributeNamespace\n false, // sanitizeURL\n false);\n}); // These are HTML attributes that must be numbers.\n\n['rowSpan', 'start'].forEach(function (name) {\n properties[name] = new PropertyInfoRecord(name, NUMERIC, false, // mustUseProperty\n name.toLowerCase(), // attributeName\n null, // attributeNamespace\n false, // sanitizeURL\n false);\n});\nvar CAMELIZE = /[\\-\\:]([a-z])/g;\n\nvar capitalize = function (token) {\n return token[1].toUpperCase();\n}; // This is a list of all SVG attributes that need special casing, namespacing,\n// or boolean value assignment. Regular attributes that just accept strings\n// and have the same names are omitted, just like in the HTML attribute filter.\n// Some of these attributes can be hard to find. This list was created by\n// scraping the MDN documentation.\n\n\n['accent-height', 'alignment-baseline', 'arabic-form', 'baseline-shift', 'cap-height', 'clip-path', 'clip-rule', 'color-interpolation', 'color-interpolation-filters', 'color-profile', 'color-rendering', 'dominant-baseline', 'enable-background', 'fill-opacity', 'fill-rule', 'flood-color', 'flood-opacity', 'font-family', 'font-size', 'font-size-adjust', 'font-stretch', 'font-style', 'font-variant', 'font-weight', 'glyph-name', 'glyph-orientation-horizontal', 'glyph-orientation-vertical', 'horiz-adv-x', 'horiz-origin-x', 'image-rendering', 'letter-spacing', 'lighting-color', 'marker-end', 'marker-mid', 'marker-start', 'overline-position', 'overline-thickness', 'paint-order', 'panose-1', 'pointer-events', 'rendering-intent', 'shape-rendering', 'stop-color', 'stop-opacity', 'strikethrough-position', 'strikethrough-thickness', 'stroke-dasharray', 'stroke-dashoffset', 'stroke-linecap', 'stroke-linejoin', 'stroke-miterlimit', 'stroke-opacity', 'stroke-width', 'text-anchor', 'text-decoration', 'text-rendering', 'underline-position', 'underline-thickness', 'unicode-bidi', 'unicode-range', 'units-per-em', 'v-alphabetic', 'v-hanging', 'v-ideographic', 'v-mathematical', 'vector-effect', 'vert-adv-y', 'vert-origin-x', 'vert-origin-y', 'word-spacing', 'writing-mode', 'xmlns:xlink', 'x-height' // NOTE: if you add a camelCased prop to this list,\n// you'll need to set attributeName to name.toLowerCase()\n// instead in the assignment below.\n].forEach(function (attributeName) {\n var name = attributeName.replace(CAMELIZE, capitalize);\n properties[name] = new PropertyInfoRecord(name, STRING, false, // mustUseProperty\n attributeName, null, // attributeNamespace\n false, // sanitizeURL\n false);\n}); // String SVG attributes with the xlink namespace.\n\n['xlink:actuate', 'xlink:arcrole', 'xlink:role', 'xlink:show', 'xlink:title', 'xlink:type' // NOTE: if you add a camelCased prop to this list,\n// you'll need to set attributeName to name.toLowerCase()\n// instead in the assignment below.\n].forEach(function (attributeName) {\n var name = attributeName.replace(CAMELIZE, capitalize);\n properties[name] = new PropertyInfoRecord(name, STRING, false, // mustUseProperty\n attributeName, 'http://www.w3.org/1999/xlink', false, // sanitizeURL\n false);\n}); // String SVG attributes with the xml namespace.\n\n['xml:base', 'xml:lang', 'xml:space' // NOTE: if you add a camelCased prop to this list,\n// you'll need to set attributeName to name.toLowerCase()\n// instead in the assignment below.\n].forEach(function (attributeName) {\n var name = attributeName.replace(CAMELIZE, capitalize);\n properties[name] = new PropertyInfoRecord(name, STRING, false, // mustUseProperty\n attributeName, 'http://www.w3.org/XML/1998/namespace', false, // sanitizeURL\n false);\n}); // These attribute exists both in HTML and SVG.\n// The attribute name is case-sensitive in SVG so we can't just use\n// the React name like we do for attributes that exist only in HTML.\n\n['tabIndex', 'crossOrigin'].forEach(function (attributeName) {\n properties[attributeName] = new PropertyInfoRecord(attributeName, STRING, false, // mustUseProperty\n attributeName.toLowerCase(), // attributeName\n null, // attributeNamespace\n false, // sanitizeURL\n false);\n}); // These attributes accept URLs. These must not allow javascript: URLS.\n// These will also need to accept Trusted Types object in the future.\n\nvar xlinkHref = 'xlinkHref';\nproperties[xlinkHref] = new PropertyInfoRecord('xlinkHref', STRING, false, // mustUseProperty\n'xlink:href', 'http://www.w3.org/1999/xlink', true, // sanitizeURL\nfalse);\n['src', 'href', 'action', 'formAction'].forEach(function (attributeName) {\n properties[attributeName] = new PropertyInfoRecord(attributeName, STRING, false, // mustUseProperty\n attributeName.toLowerCase(), // attributeName\n null, // attributeNamespace\n true, // sanitizeURL\n true);\n});\n\n// and any newline or tab are filtered out as if they're not part of the URL.\n// https://url.spec.whatwg.org/#url-parsing\n// Tab or newline are defined as \\r\\n\\t:\n// https://infra.spec.whatwg.org/#ascii-tab-or-newline\n// A C0 control is a code point in the range \\u0000 NULL to \\u001F\n// INFORMATION SEPARATOR ONE, inclusive:\n// https://infra.spec.whatwg.org/#c0-control-or-space\n\n/* eslint-disable max-len */\n\nvar isJavaScriptProtocol = /^[\\u0000-\\u001F ]*j[\\r\\n\\t]*a[\\r\\n\\t]*v[\\r\\n\\t]*a[\\r\\n\\t]*s[\\r\\n\\t]*c[\\r\\n\\t]*r[\\r\\n\\t]*i[\\r\\n\\t]*p[\\r\\n\\t]*t[\\r\\n\\t]*\\:/i;\nvar didWarn = false;\n\nfunction sanitizeURL(url) {\n {\n if (!didWarn && isJavaScriptProtocol.test(url)) {\n didWarn = true;\n\n error('A future version of React will block javascript: URLs as a security precaution. ' + 'Use event handlers instead if you can. If you need to generate unsafe HTML try ' + 'using dangerouslySetInnerHTML instead. React was passed %s.', JSON.stringify(url));\n }\n }\n}\n\n/**\n * Get the value for a property on a node. Only used in DEV for SSR validation.\n * The \"expected\" argument is used as a hint of what the expected value is.\n * Some properties have multiple equivalent values.\n */\nfunction getValueForProperty(node, name, expected, propertyInfo) {\n {\n if (propertyInfo.mustUseProperty) {\n var propertyName = propertyInfo.propertyName;\n return node[propertyName];\n } else {\n if ( propertyInfo.sanitizeURL) {\n // If we haven't fully disabled javascript: URLs, and if\n // the hydration is successful of a javascript: URL, we\n // still want to warn on the client.\n sanitizeURL('' + expected);\n }\n\n var attributeName = propertyInfo.attributeName;\n var stringValue = null;\n\n if (propertyInfo.type === OVERLOADED_BOOLEAN) {\n if (node.hasAttribute(attributeName)) {\n var value = node.getAttribute(attributeName);\n\n if (value === '') {\n return true;\n }\n\n if (shouldRemoveAttribute(name, expected, propertyInfo, false)) {\n return value;\n }\n\n if (value === '' + expected) {\n return expected;\n }\n\n return value;\n }\n } else if (node.hasAttribute(attributeName)) {\n if (shouldRemoveAttribute(name, expected, propertyInfo, false)) {\n // We had an attribute but shouldn't have had one, so read it\n // for the error message.\n return node.getAttribute(attributeName);\n }\n\n if (propertyInfo.type === BOOLEAN) {\n // If this was a boolean, it doesn't matter what the value is\n // the fact that we have it is the same as the expected.\n return expected;\n } // Even if this property uses a namespace we use getAttribute\n // because we assume its namespaced name is the same as our config.\n // To use getAttributeNS we need the local name which we don't have\n // in our config atm.\n\n\n stringValue = node.getAttribute(attributeName);\n }\n\n if (shouldRemoveAttribute(name, expected, propertyInfo, false)) {\n return stringValue === null ? expected : stringValue;\n } else if (stringValue === '' + expected) {\n return expected;\n } else {\n return stringValue;\n }\n }\n }\n}\n/**\n * Get the value for a attribute on a node. Only used in DEV for SSR validation.\n * The third argument is used as a hint of what the expected value is. Some\n * attributes have multiple equivalent values.\n */\n\nfunction getValueForAttribute(node, name, expected) {\n {\n if (!isAttributeNameSafe(name)) {\n return;\n } // If the object is an opaque reference ID, it's expected that\n // the next prop is different than the server value, so just return\n // expected\n\n\n if (isOpaqueHydratingObject(expected)) {\n return expected;\n }\n\n if (!node.hasAttribute(name)) {\n return expected === undefined ? undefined : null;\n }\n\n var value = node.getAttribute(name);\n\n if (value === '' + expected) {\n return expected;\n }\n\n return value;\n }\n}\n/**\n * Sets the value for a property on a node.\n *\n * @param {DOMElement} node\n * @param {string} name\n * @param {*} value\n */\n\nfunction setValueForProperty(node, name, value, isCustomComponentTag) {\n var propertyInfo = getPropertyInfo(name);\n\n if (shouldIgnoreAttribute(name, propertyInfo, isCustomComponentTag)) {\n return;\n }\n\n if (shouldRemoveAttribute(name, value, propertyInfo, isCustomComponentTag)) {\n value = null;\n } // If the prop isn't in the special list, treat it as a simple attribute.\n\n\n if (isCustomComponentTag || propertyInfo === null) {\n if (isAttributeNameSafe(name)) {\n var _attributeName = name;\n\n if (value === null) {\n node.removeAttribute(_attributeName);\n } else {\n node.setAttribute(_attributeName, '' + value);\n }\n }\n\n return;\n }\n\n var mustUseProperty = propertyInfo.mustUseProperty;\n\n if (mustUseProperty) {\n var propertyName = propertyInfo.propertyName;\n\n if (value === null) {\n var type = propertyInfo.type;\n node[propertyName] = type === BOOLEAN ? false : '';\n } else {\n // Contrary to `setAttribute`, object properties are properly\n // `toString`ed by IE8/9.\n node[propertyName] = value;\n }\n\n return;\n } // The rest are treated as attributes with special cases.\n\n\n var attributeName = propertyInfo.attributeName,\n attributeNamespace = propertyInfo.attributeNamespace;\n\n if (value === null) {\n node.removeAttribute(attributeName);\n } else {\n var _type = propertyInfo.type;\n var attributeValue;\n\n if (_type === BOOLEAN || _type === OVERLOADED_BOOLEAN && value === true) {\n // If attribute type is boolean, we know for sure it won't be an execution sink\n // and we won't require Trusted Type here.\n attributeValue = '';\n } else {\n // `setAttribute` with objects becomes only `[object]` in IE8/9,\n // ('' + value) makes it output the correct toString()-value.\n {\n attributeValue = '' + value;\n }\n\n if (propertyInfo.sanitizeURL) {\n sanitizeURL(attributeValue.toString());\n }\n }\n\n if (attributeNamespace) {\n node.setAttributeNS(attributeNamespace, attributeName, attributeValue);\n } else {\n node.setAttribute(attributeName, attributeValue);\n }\n }\n}\n\n// ATTENTION\n// When adding new symbols to this file,\n// Please consider also adding to 'react-devtools-shared/src/backend/ReactSymbols'\n// The Symbol used to tag the ReactElement-like types. If there is no native Symbol\n// nor polyfill, then a plain number is used for performance.\nvar REACT_ELEMENT_TYPE = 0xeac7;\nvar REACT_PORTAL_TYPE = 0xeaca;\nvar REACT_FRAGMENT_TYPE = 0xeacb;\nvar REACT_STRICT_MODE_TYPE = 0xeacc;\nvar REACT_PROFILER_TYPE = 0xead2;\nvar REACT_PROVIDER_TYPE = 0xeacd;\nvar REACT_CONTEXT_TYPE = 0xeace;\nvar REACT_FORWARD_REF_TYPE = 0xead0;\nvar REACT_SUSPENSE_TYPE = 0xead1;\nvar REACT_SUSPENSE_LIST_TYPE = 0xead8;\nvar REACT_MEMO_TYPE = 0xead3;\nvar REACT_LAZY_TYPE = 0xead4;\nvar REACT_BLOCK_TYPE = 0xead9;\nvar REACT_SERVER_BLOCK_TYPE = 0xeada;\nvar REACT_FUNDAMENTAL_TYPE = 0xead5;\nvar REACT_SCOPE_TYPE = 0xead7;\nvar REACT_OPAQUE_ID_TYPE = 0xeae0;\nvar REACT_DEBUG_TRACING_MODE_TYPE = 0xeae1;\nvar REACT_OFFSCREEN_TYPE = 0xeae2;\nvar REACT_LEGACY_HIDDEN_TYPE = 0xeae3;\n\nif (typeof Symbol === 'function' && Symbol.for) {\n var symbolFor = Symbol.for;\n REACT_ELEMENT_TYPE = symbolFor('react.element');\n REACT_PORTAL_TYPE = symbolFor('react.portal');\n REACT_FRAGMENT_TYPE = symbolFor('react.fragment');\n REACT_STRICT_MODE_TYPE = symbolFor('react.strict_mode');\n REACT_PROFILER_TYPE = symbolFor('react.profiler');\n REACT_PROVIDER_TYPE = symbolFor('react.provider');\n REACT_CONTEXT_TYPE = symbolFor('react.context');\n REACT_FORWARD_REF_TYPE = symbolFor('react.forward_ref');\n REACT_SUSPENSE_TYPE = symbolFor('react.suspense');\n REACT_SUSPENSE_LIST_TYPE = symbolFor('react.suspense_list');\n REACT_MEMO_TYPE = symbolFor('react.memo');\n REACT_LAZY_TYPE = symbolFor('react.lazy');\n REACT_BLOCK_TYPE = symbolFor('react.block');\n REACT_SERVER_BLOCK_TYPE = symbolFor('react.server.block');\n REACT_FUNDAMENTAL_TYPE = symbolFor('react.fundamental');\n REACT_SCOPE_TYPE = symbolFor('react.scope');\n REACT_OPAQUE_ID_TYPE = symbolFor('react.opaque.id');\n REACT_DEBUG_TRACING_MODE_TYPE = symbolFor('react.debug_trace_mode');\n REACT_OFFSCREEN_TYPE = symbolFor('react.offscreen');\n REACT_LEGACY_HIDDEN_TYPE = symbolFor('react.legacy_hidden');\n}\n\nvar MAYBE_ITERATOR_SYMBOL = typeof Symbol === 'function' && Symbol.iterator;\nvar FAUX_ITERATOR_SYMBOL = '@@iterator';\nfunction getIteratorFn(maybeIterable) {\n if (maybeIterable === null || typeof maybeIterable !== 'object') {\n return null;\n }\n\n var maybeIterator = MAYBE_ITERATOR_SYMBOL && maybeIterable[MAYBE_ITERATOR_SYMBOL] || maybeIterable[FAUX_ITERATOR_SYMBOL];\n\n if (typeof maybeIterator === 'function') {\n return maybeIterator;\n }\n\n return null;\n}\n\n// Helpers to patch console.logs to avoid logging during side-effect free\n// replaying on render function. This currently only patches the object\n// lazily which won't cover if the log function was extracted eagerly.\n// We could also eagerly patch the method.\nvar disabledDepth = 0;\nvar prevLog;\nvar prevInfo;\nvar prevWarn;\nvar prevError;\nvar prevGroup;\nvar prevGroupCollapsed;\nvar prevGroupEnd;\n\nfunction disabledLog() {}\n\ndisabledLog.__reactDisabledLog = true;\nfunction disableLogs() {\n {\n if (disabledDepth === 0) {\n /* eslint-disable react-internal/no-production-logging */\n prevLog = console.log;\n prevInfo = console.info;\n prevWarn = console.warn;\n prevError = console.error;\n prevGroup = console.group;\n prevGroupCollapsed = console.groupCollapsed;\n prevGroupEnd = console.groupEnd; // https://github.com/facebook/react/issues/19099\n\n var props = {\n configurable: true,\n enumerable: true,\n value: disabledLog,\n writable: true\n }; // $FlowFixMe Flow thinks console is immutable.\n\n Object.defineProperties(console, {\n info: props,\n log: props,\n warn: props,\n error: props,\n group: props,\n groupCollapsed: props,\n groupEnd: props\n });\n /* eslint-enable react-internal/no-production-logging */\n }\n\n disabledDepth++;\n }\n}\nfunction reenableLogs() {\n {\n disabledDepth--;\n\n if (disabledDepth === 0) {\n /* eslint-disable react-internal/no-production-logging */\n var props = {\n configurable: true,\n enumerable: true,\n writable: true\n }; // $FlowFixMe Flow thinks console is immutable.\n\n Object.defineProperties(console, {\n log: _assign({}, props, {\n value: prevLog\n }),\n info: _assign({}, props, {\n value: prevInfo\n }),\n warn: _assign({}, props, {\n value: prevWarn\n }),\n error: _assign({}, props, {\n value: prevError\n }),\n group: _assign({}, props, {\n value: prevGroup\n }),\n groupCollapsed: _assign({}, props, {\n value: prevGroupCollapsed\n }),\n groupEnd: _assign({}, props, {\n value: prevGroupEnd\n })\n });\n /* eslint-enable react-internal/no-production-logging */\n }\n\n if (disabledDepth < 0) {\n error('disabledDepth fell below zero. ' + 'This is a bug in React. Please file an issue.');\n }\n }\n}\n\nvar ReactCurrentDispatcher = ReactSharedInternals.ReactCurrentDispatcher;\nvar prefix;\nfunction describeBuiltInComponentFrame(name, source, ownerFn) {\n {\n if (prefix === undefined) {\n // Extract the VM specific prefix used by each line.\n try {\n throw Error();\n } catch (x) {\n var match = x.stack.trim().match(/\\n( *(at )?)/);\n prefix = match && match[1] || '';\n }\n } // We use the prefix to ensure our stacks line up with native stack frames.\n\n\n return '\\n' + prefix + name;\n }\n}\nvar reentry = false;\nvar componentFrameCache;\n\n{\n var PossiblyWeakMap = typeof WeakMap === 'function' ? WeakMap : Map;\n componentFrameCache = new PossiblyWeakMap();\n}\n\nfunction describeNativeComponentFrame(fn, construct) {\n // If something asked for a stack inside a fake render, it should get ignored.\n if (!fn || reentry) {\n return '';\n }\n\n {\n var frame = componentFrameCache.get(fn);\n\n if (frame !== undefined) {\n return frame;\n }\n }\n\n var control;\n reentry = true;\n var previousPrepareStackTrace = Error.prepareStackTrace; // $FlowFixMe It does accept undefined.\n\n Error.prepareStackTrace = undefined;\n var previousDispatcher;\n\n {\n previousDispatcher = ReactCurrentDispatcher.current; // Set the dispatcher in DEV because this might be call in the render function\n // for warnings.\n\n ReactCurrentDispatcher.current = null;\n disableLogs();\n }\n\n try {\n // This should throw.\n if (construct) {\n // Something should be setting the props in the constructor.\n var Fake = function () {\n throw Error();\n }; // $FlowFixMe\n\n\n Object.defineProperty(Fake.prototype, 'props', {\n set: function () {\n // We use a throwing setter instead of frozen or non-writable props\n // because that won't throw in a non-strict mode function.\n throw Error();\n }\n });\n\n if (typeof Reflect === 'object' && Reflect.construct) {\n // We construct a different control for this case to include any extra\n // frames added by the construct call.\n try {\n Reflect.construct(Fake, []);\n } catch (x) {\n control = x;\n }\n\n Reflect.construct(fn, [], Fake);\n } else {\n try {\n Fake.call();\n } catch (x) {\n control = x;\n }\n\n fn.call(Fake.prototype);\n }\n } else {\n try {\n throw Error();\n } catch (x) {\n control = x;\n }\n\n fn();\n }\n } catch (sample) {\n // This is inlined manually because closure doesn't do it for us.\n if (sample && control && typeof sample.stack === 'string') {\n // This extracts the first frame from the sample that isn't also in the control.\n // Skipping one frame that we assume is the frame that calls the two.\n var sampleLines = sample.stack.split('\\n');\n var controlLines = control.stack.split('\\n');\n var s = sampleLines.length - 1;\n var c = controlLines.length - 1;\n\n while (s >= 1 && c >= 0 && sampleLines[s] !== controlLines[c]) {\n // We expect at least one stack frame to be shared.\n // Typically this will be the root most one. However, stack frames may be\n // cut off due to maximum stack limits. In this case, one maybe cut off\n // earlier than the other. We assume that the sample is longer or the same\n // and there for cut off earlier. So we should find the root most frame in\n // the sample somewhere in the control.\n c--;\n }\n\n for (; s >= 1 && c >= 0; s--, c--) {\n // Next we find the first one that isn't the same which should be the\n // frame that called our sample function and the control.\n if (sampleLines[s] !== controlLines[c]) {\n // In V8, the first line is describing the message but other VMs don't.\n // If we're about to return the first line, and the control is also on the same\n // line, that's a pretty good indicator that our sample threw at same line as\n // the control. I.e. before we entered the sample frame. So we ignore this result.\n // This can happen if you passed a class to function component, or non-function.\n if (s !== 1 || c !== 1) {\n do {\n s--;\n c--; // We may still have similar intermediate frames from the construct call.\n // The next one that isn't the same should be our match though.\n\n if (c < 0 || sampleLines[s] !== controlLines[c]) {\n // V8 adds a \"new\" prefix for native classes. Let's remove it to make it prettier.\n var _frame = '\\n' + sampleLines[s].replace(' at new ', ' at ');\n\n {\n if (typeof fn === 'function') {\n componentFrameCache.set(fn, _frame);\n }\n } // Return the line we found.\n\n\n return _frame;\n }\n } while (s >= 1 && c >= 0);\n }\n\n break;\n }\n }\n }\n } finally {\n reentry = false;\n\n {\n ReactCurrentDispatcher.current = previousDispatcher;\n reenableLogs();\n }\n\n Error.prepareStackTrace = previousPrepareStackTrace;\n } // Fallback to just using the name if we couldn't make it throw.\n\n\n var name = fn ? fn.displayName || fn.name : '';\n var syntheticFrame = name ? describeBuiltInComponentFrame(name) : '';\n\n {\n if (typeof fn === 'function') {\n componentFrameCache.set(fn, syntheticFrame);\n }\n }\n\n return syntheticFrame;\n}\n\nfunction describeClassComponentFrame(ctor, source, ownerFn) {\n {\n return describeNativeComponentFrame(ctor, true);\n }\n}\nfunction describeFunctionComponentFrame(fn, source, ownerFn) {\n {\n return describeNativeComponentFrame(fn, false);\n }\n}\n\nfunction shouldConstruct(Component) {\n var prototype = Component.prototype;\n return !!(prototype && prototype.isReactComponent);\n}\n\nfunction describeUnknownElementTypeFrameInDEV(type, source, ownerFn) {\n\n if (type == null) {\n return '';\n }\n\n if (typeof type === 'function') {\n {\n return describeNativeComponentFrame(type, shouldConstruct(type));\n }\n }\n\n if (typeof type === 'string') {\n return describeBuiltInComponentFrame(type);\n }\n\n switch (type) {\n case REACT_SUSPENSE_TYPE:\n return describeBuiltInComponentFrame('Suspense');\n\n case REACT_SUSPENSE_LIST_TYPE:\n return describeBuiltInComponentFrame('SuspenseList');\n }\n\n if (typeof type === 'object') {\n switch (type.$$typeof) {\n case REACT_FORWARD_REF_TYPE:\n return describeFunctionComponentFrame(type.render);\n\n case REACT_MEMO_TYPE:\n // Memo may contain any component type so we recursively resolve it.\n return describeUnknownElementTypeFrameInDEV(type.type, source, ownerFn);\n\n case REACT_BLOCK_TYPE:\n return describeFunctionComponentFrame(type._render);\n\n case REACT_LAZY_TYPE:\n {\n var lazyComponent = type;\n var payload = lazyComponent._payload;\n var init = lazyComponent._init;\n\n try {\n // Lazy may contain any component type so we recursively resolve it.\n return describeUnknownElementTypeFrameInDEV(init(payload), source, ownerFn);\n } catch (x) {}\n }\n }\n }\n\n return '';\n}\n\nfunction describeFiber(fiber) {\n var owner = fiber._debugOwner ? fiber._debugOwner.type : null ;\n var source = fiber._debugSource ;\n\n switch (fiber.tag) {\n case HostComponent:\n return describeBuiltInComponentFrame(fiber.type);\n\n case LazyComponent:\n return describeBuiltInComponentFrame('Lazy');\n\n case SuspenseComponent:\n return describeBuiltInComponentFrame('Suspense');\n\n case SuspenseListComponent:\n return describeBuiltInComponentFrame('SuspenseList');\n\n case FunctionComponent:\n case IndeterminateComponent:\n case SimpleMemoComponent:\n return describeFunctionComponentFrame(fiber.type);\n\n case ForwardRef:\n return describeFunctionComponentFrame(fiber.type.render);\n\n case Block:\n return describeFunctionComponentFrame(fiber.type._render);\n\n case ClassComponent:\n return describeClassComponentFrame(fiber.type);\n\n default:\n return '';\n }\n}\n\nfunction getStackByFiberInDevAndProd(workInProgress) {\n try {\n var info = '';\n var node = workInProgress;\n\n do {\n info += describeFiber(node);\n node = node.return;\n } while (node);\n\n return info;\n } catch (x) {\n return '\\nError generating stack: ' + x.message + '\\n' + x.stack;\n }\n}\n\nfunction getWrappedName(outerType, innerType, wrapperName) {\n var functionName = innerType.displayName || innerType.name || '';\n return outerType.displayName || (functionName !== '' ? wrapperName + \"(\" + functionName + \")\" : wrapperName);\n}\n\nfunction getContextName(type) {\n return type.displayName || 'Context';\n}\n\nfunction getComponentName(type) {\n if (type == null) {\n // Host root, text node or just invalid type.\n return null;\n }\n\n {\n if (typeof type.tag === 'number') {\n error('Received an unexpected object in getComponentName(). ' + 'This is likely a bug in React. Please file an issue.');\n }\n }\n\n if (typeof type === 'function') {\n return type.displayName || type.name || null;\n }\n\n if (typeof type === 'string') {\n return type;\n }\n\n switch (type) {\n case REACT_FRAGMENT_TYPE:\n return 'Fragment';\n\n case REACT_PORTAL_TYPE:\n return 'Portal';\n\n case REACT_PROFILER_TYPE:\n return 'Profiler';\n\n case REACT_STRICT_MODE_TYPE:\n return 'StrictMode';\n\n case REACT_SUSPENSE_TYPE:\n return 'Suspense';\n\n case REACT_SUSPENSE_LIST_TYPE:\n return 'SuspenseList';\n }\n\n if (typeof type === 'object') {\n switch (type.$$typeof) {\n case REACT_CONTEXT_TYPE:\n var context = type;\n return getContextName(context) + '.Consumer';\n\n case REACT_PROVIDER_TYPE:\n var provider = type;\n return getContextName(provider._context) + '.Provider';\n\n case REACT_FORWARD_REF_TYPE:\n return getWrappedName(type, type.render, 'ForwardRef');\n\n case REACT_MEMO_TYPE:\n return getComponentName(type.type);\n\n case REACT_BLOCK_TYPE:\n return getComponentName(type._render);\n\n case REACT_LAZY_TYPE:\n {\n var lazyComponent = type;\n var payload = lazyComponent._payload;\n var init = lazyComponent._init;\n\n try {\n return getComponentName(init(payload));\n } catch (x) {\n return null;\n }\n }\n }\n }\n\n return null;\n}\n\nvar ReactDebugCurrentFrame = ReactSharedInternals.ReactDebugCurrentFrame;\nvar current = null;\nvar isRendering = false;\nfunction getCurrentFiberOwnerNameInDevOrNull() {\n {\n if (current === null) {\n return null;\n }\n\n var owner = current._debugOwner;\n\n if (owner !== null && typeof owner !== 'undefined') {\n return getComponentName(owner.type);\n }\n }\n\n return null;\n}\n\nfunction getCurrentFiberStackInDev() {\n {\n if (current === null) {\n return '';\n } // Safe because if current fiber exists, we are reconciling,\n // and it is guaranteed to be the work-in-progress version.\n\n\n return getStackByFiberInDevAndProd(current);\n }\n}\n\nfunction resetCurrentFiber() {\n {\n ReactDebugCurrentFrame.getCurrentStack = null;\n current = null;\n isRendering = false;\n }\n}\nfunction setCurrentFiber(fiber) {\n {\n ReactDebugCurrentFrame.getCurrentStack = getCurrentFiberStackInDev;\n current = fiber;\n isRendering = false;\n }\n}\nfunction setIsRendering(rendering) {\n {\n isRendering = rendering;\n }\n}\nfunction getIsRendering() {\n {\n return isRendering;\n }\n}\n\n// Flow does not allow string concatenation of most non-string types. To work\n// around this limitation, we use an opaque type that can only be obtained by\n// passing the value through getToStringValue first.\nfunction toString(value) {\n return '' + value;\n}\nfunction getToStringValue(value) {\n switch (typeof value) {\n case 'boolean':\n case 'number':\n case 'object':\n case 'string':\n case 'undefined':\n return value;\n\n default:\n // function, symbol are assigned as empty strings\n return '';\n }\n}\n\nvar hasReadOnlyValue = {\n button: true,\n checkbox: true,\n image: true,\n hidden: true,\n radio: true,\n reset: true,\n submit: true\n};\nfunction checkControlledValueProps(tagName, props) {\n {\n if (!(hasReadOnlyValue[props.type] || props.onChange || props.onInput || props.readOnly || props.disabled || props.value == null)) {\n error('You provided a `value` prop to a form field without an ' + '`onChange` handler. This will render a read-only field. If ' + 'the field should be mutable use `defaultValue`. Otherwise, ' + 'set either `onChange` or `readOnly`.');\n }\n\n if (!(props.onChange || props.readOnly || props.disabled || props.checked == null)) {\n error('You provided a `checked` prop to a form field without an ' + '`onChange` handler. This will render a read-only field. If ' + 'the field should be mutable use `defaultChecked`. Otherwise, ' + 'set either `onChange` or `readOnly`.');\n }\n }\n}\n\nfunction isCheckable(elem) {\n var type = elem.type;\n var nodeName = elem.nodeName;\n return nodeName && nodeName.toLowerCase() === 'input' && (type === 'checkbox' || type === 'radio');\n}\n\nfunction getTracker(node) {\n return node._valueTracker;\n}\n\nfunction detachTracker(node) {\n node._valueTracker = null;\n}\n\nfunction getValueFromNode(node) {\n var value = '';\n\n if (!node) {\n return value;\n }\n\n if (isCheckable(node)) {\n value = node.checked ? 'true' : 'false';\n } else {\n value = node.value;\n }\n\n return value;\n}\n\nfunction trackValueOnNode(node) {\n var valueField = isCheckable(node) ? 'checked' : 'value';\n var descriptor = Object.getOwnPropertyDescriptor(node.constructor.prototype, valueField);\n var currentValue = '' + node[valueField]; // if someone has already defined a value or Safari, then bail\n // and don't track value will cause over reporting of changes,\n // but it's better then a hard failure\n // (needed for certain tests that spyOn input values and Safari)\n\n if (node.hasOwnProperty(valueField) || typeof descriptor === 'undefined' || typeof descriptor.get !== 'function' || typeof descriptor.set !== 'function') {\n return;\n }\n\n var get = descriptor.get,\n set = descriptor.set;\n Object.defineProperty(node, valueField, {\n configurable: true,\n get: function () {\n return get.call(this);\n },\n set: function (value) {\n currentValue = '' + value;\n set.call(this, value);\n }\n }); // We could've passed this the first time\n // but it triggers a bug in IE11 and Edge 14/15.\n // Calling defineProperty() again should be equivalent.\n // https://github.com/facebook/react/issues/11768\n\n Object.defineProperty(node, valueField, {\n enumerable: descriptor.enumerable\n });\n var tracker = {\n getValue: function () {\n return currentValue;\n },\n setValue: function (value) {\n currentValue = '' + value;\n },\n stopTracking: function () {\n detachTracker(node);\n delete node[valueField];\n }\n };\n return tracker;\n}\n\nfunction track(node) {\n if (getTracker(node)) {\n return;\n } // TODO: Once it's just Fiber we can move this to node._wrapperState\n\n\n node._valueTracker = trackValueOnNode(node);\n}\nfunction updateValueIfChanged(node) {\n if (!node) {\n return false;\n }\n\n var tracker = getTracker(node); // if there is no tracker at this point it's unlikely\n // that trying again will succeed\n\n if (!tracker) {\n return true;\n }\n\n var lastValue = tracker.getValue();\n var nextValue = getValueFromNode(node);\n\n if (nextValue !== lastValue) {\n tracker.setValue(nextValue);\n return true;\n }\n\n return false;\n}\n\nfunction getActiveElement(doc) {\n doc = doc || (typeof document !== 'undefined' ? document : undefined);\n\n if (typeof doc === 'undefined') {\n return null;\n }\n\n try {\n return doc.activeElement || doc.body;\n } catch (e) {\n return doc.body;\n }\n}\n\nvar didWarnValueDefaultValue = false;\nvar didWarnCheckedDefaultChecked = false;\nvar didWarnControlledToUncontrolled = false;\nvar didWarnUncontrolledToControlled = false;\n\nfunction isControlled(props) {\n var usesChecked = props.type === 'checkbox' || props.type === 'radio';\n return usesChecked ? props.checked != null : props.value != null;\n}\n/**\n * Implements an host component that allows setting these optional\n * props: `checked`, `value`, `defaultChecked`, and `defaultValue`.\n *\n * If `checked` or `value` are not supplied (or null/undefined), user actions\n * that affect the checked state or value will trigger updates to the element.\n *\n * If they are supplied (and not null/undefined), the rendered element will not\n * trigger updates to the element. Instead, the props must change in order for\n * the rendered element to be updated.\n *\n * The rendered element will be initialized as unchecked (or `defaultChecked`)\n * with an empty value (or `defaultValue`).\n *\n * See http://www.w3.org/TR/2012/WD-html5-20121025/the-input-element.html\n */\n\n\nfunction getHostProps(element, props) {\n var node = element;\n var checked = props.checked;\n\n var hostProps = _assign({}, props, {\n defaultChecked: undefined,\n defaultValue: undefined,\n value: undefined,\n checked: checked != null ? checked : node._wrapperState.initialChecked\n });\n\n return hostProps;\n}\nfunction initWrapperState(element, props) {\n {\n checkControlledValueProps('input', props);\n\n if (props.checked !== undefined && props.defaultChecked !== undefined && !didWarnCheckedDefaultChecked) {\n error('%s contains an input of type %s with both checked and defaultChecked props. ' + 'Input elements must be either controlled or uncontrolled ' + '(specify either the checked prop, or the defaultChecked prop, but not ' + 'both). Decide between using a controlled or uncontrolled input ' + 'element and remove one of these props. More info: ' + 'https://reactjs.org/link/controlled-components', getCurrentFiberOwnerNameInDevOrNull() || 'A component', props.type);\n\n didWarnCheckedDefaultChecked = true;\n }\n\n if (props.value !== undefined && props.defaultValue !== undefined && !didWarnValueDefaultValue) {\n error('%s contains an input of type %s with both value and defaultValue props. ' + 'Input elements must be either controlled or uncontrolled ' + '(specify either the value prop, or the defaultValue prop, but not ' + 'both). Decide between using a controlled or uncontrolled input ' + 'element and remove one of these props. More info: ' + 'https://reactjs.org/link/controlled-components', getCurrentFiberOwnerNameInDevOrNull() || 'A component', props.type);\n\n didWarnValueDefaultValue = true;\n }\n }\n\n var node = element;\n var defaultValue = props.defaultValue == null ? '' : props.defaultValue;\n node._wrapperState = {\n initialChecked: props.checked != null ? props.checked : props.defaultChecked,\n initialValue: getToStringValue(props.value != null ? props.value : defaultValue),\n controlled: isControlled(props)\n };\n}\nfunction updateChecked(element, props) {\n var node = element;\n var checked = props.checked;\n\n if (checked != null) {\n setValueForProperty(node, 'checked', checked, false);\n }\n}\nfunction updateWrapper(element, props) {\n var node = element;\n\n {\n var controlled = isControlled(props);\n\n if (!node._wrapperState.controlled && controlled && !didWarnUncontrolledToControlled) {\n error('A component is changing an uncontrolled input to be controlled. ' + 'This is likely caused by the value changing from undefined to ' + 'a defined value, which should not happen. ' + 'Decide between using a controlled or uncontrolled input ' + 'element for the lifetime of the component. More info: https://reactjs.org/link/controlled-components');\n\n didWarnUncontrolledToControlled = true;\n }\n\n if (node._wrapperState.controlled && !controlled && !didWarnControlledToUncontrolled) {\n error('A component is changing a controlled input to be uncontrolled. ' + 'This is likely caused by the value changing from a defined to ' + 'undefined, which should not happen. ' + 'Decide between using a controlled or uncontrolled input ' + 'element for the lifetime of the component. More info: https://reactjs.org/link/controlled-components');\n\n didWarnControlledToUncontrolled = true;\n }\n }\n\n updateChecked(element, props);\n var value = getToStringValue(props.value);\n var type = props.type;\n\n if (value != null) {\n if (type === 'number') {\n if (value === 0 && node.value === '' || // We explicitly want to coerce to number here if possible.\n // eslint-disable-next-line\n node.value != value) {\n node.value = toString(value);\n }\n } else if (node.value !== toString(value)) {\n node.value = toString(value);\n }\n } else if (type === 'submit' || type === 'reset') {\n // Submit/reset inputs need the attribute removed completely to avoid\n // blank-text buttons.\n node.removeAttribute('value');\n return;\n }\n\n {\n // When syncing the value attribute, the value comes from a cascade of\n // properties:\n // 1. The value React property\n // 2. The defaultValue React property\n // 3. Otherwise there should be no change\n if (props.hasOwnProperty('value')) {\n setDefaultValue(node, props.type, value);\n } else if (props.hasOwnProperty('defaultValue')) {\n setDefaultValue(node, props.type, getToStringValue(props.defaultValue));\n }\n }\n\n {\n // When syncing the checked attribute, it only changes when it needs\n // to be removed, such as transitioning from a checkbox into a text input\n if (props.checked == null && props.defaultChecked != null) {\n node.defaultChecked = !!props.defaultChecked;\n }\n }\n}\nfunction postMountWrapper(element, props, isHydrating) {\n var node = element; // Do not assign value if it is already set. This prevents user text input\n // from being lost during SSR hydration.\n\n if (props.hasOwnProperty('value') || props.hasOwnProperty('defaultValue')) {\n var type = props.type;\n var isButton = type === 'submit' || type === 'reset'; // Avoid setting value attribute on submit/reset inputs as it overrides the\n // default value provided by the browser. See: #12872\n\n if (isButton && (props.value === undefined || props.value === null)) {\n return;\n }\n\n var initialValue = toString(node._wrapperState.initialValue); // Do not assign value if it is already set. This prevents user text input\n // from being lost during SSR hydration.\n\n if (!isHydrating) {\n {\n // When syncing the value attribute, the value property should use\n // the wrapperState._initialValue property. This uses:\n //\n // 1. The value React property when present\n // 2. The defaultValue React property when present\n // 3. An empty string\n if (initialValue !== node.value) {\n node.value = initialValue;\n }\n }\n }\n\n {\n // Otherwise, the value attribute is synchronized to the property,\n // so we assign defaultValue to the same thing as the value property\n // assignment step above.\n node.defaultValue = initialValue;\n }\n } // Normally, we'd just do `node.checked = node.checked` upon initial mount, less this bug\n // this is needed to work around a chrome bug where setting defaultChecked\n // will sometimes influence the value of checked (even after detachment).\n // Reference: https://bugs.chromium.org/p/chromium/issues/detail?id=608416\n // We need to temporarily unset name to avoid disrupting radio button groups.\n\n\n var name = node.name;\n\n if (name !== '') {\n node.name = '';\n }\n\n {\n // When syncing the checked attribute, both the checked property and\n // attribute are assigned at the same time using defaultChecked. This uses:\n //\n // 1. The checked React property when present\n // 2. The defaultChecked React property when present\n // 3. Otherwise, false\n node.defaultChecked = !node.defaultChecked;\n node.defaultChecked = !!node._wrapperState.initialChecked;\n }\n\n if (name !== '') {\n node.name = name;\n }\n}\nfunction restoreControlledState(element, props) {\n var node = element;\n updateWrapper(node, props);\n updateNamedCousins(node, props);\n}\n\nfunction updateNamedCousins(rootNode, props) {\n var name = props.name;\n\n if (props.type === 'radio' && name != null) {\n var queryRoot = rootNode;\n\n while (queryRoot.parentNode) {\n queryRoot = queryRoot.parentNode;\n } // If `rootNode.form` was non-null, then we could try `form.elements`,\n // but that sometimes behaves strangely in IE8. We could also try using\n // `form.getElementsByName`, but that will only return direct children\n // and won't include inputs that use the HTML5 `form=` attribute. Since\n // the input might not even be in a form. It might not even be in the\n // document. Let's just use the local `querySelectorAll` to ensure we don't\n // miss anything.\n\n\n var group = queryRoot.querySelectorAll('input[name=' + JSON.stringify('' + name) + '][type=\"radio\"]');\n\n for (var i = 0; i < group.length; i++) {\n var otherNode = group[i];\n\n if (otherNode === rootNode || otherNode.form !== rootNode.form) {\n continue;\n } // This will throw if radio buttons rendered by different copies of React\n // and the same name are rendered into the same form (same as #1939).\n // That's probably okay; we don't support it just as we don't support\n // mixing React radio buttons with non-React ones.\n\n\n var otherProps = getFiberCurrentPropsFromNode(otherNode);\n\n if (!otherProps) {\n {\n throw Error( \"ReactDOMInput: Mixing React and non-React radio inputs with the same `name` is not supported.\" );\n }\n } // We need update the tracked value on the named cousin since the value\n // was changed but the input saw no event or value set\n\n\n updateValueIfChanged(otherNode); // If this is a controlled radio button group, forcing the input that\n // was previously checked to update will cause it to be come re-checked\n // as appropriate.\n\n updateWrapper(otherNode, otherProps);\n }\n }\n} // In Chrome, assigning defaultValue to certain input types triggers input validation.\n// For number inputs, the display value loses trailing decimal points. For email inputs,\n// Chrome raises \"The specified value is not a valid email address\".\n//\n// Here we check to see if the defaultValue has actually changed, avoiding these problems\n// when the user is inputting text\n//\n// https://github.com/facebook/react/issues/7253\n\n\nfunction setDefaultValue(node, type, value) {\n if ( // Focused number inputs synchronize on blur. See ChangeEventPlugin.js\n type !== 'number' || getActiveElement(node.ownerDocument) !== node) {\n if (value == null) {\n node.defaultValue = toString(node._wrapperState.initialValue);\n } else if (node.defaultValue !== toString(value)) {\n node.defaultValue = toString(value);\n }\n }\n}\n\nvar didWarnSelectedSetOnOption = false;\nvar didWarnInvalidChild = false;\n\nfunction flattenChildren(children) {\n var content = ''; // Flatten children. We'll warn if they are invalid\n // during validateProps() which runs for hydration too.\n // Note that this would throw on non-element objects.\n // Elements are stringified (which is normally irrelevant\n // but matters for ).\n\n React.Children.forEach(children, function (child) {\n if (child == null) {\n return;\n }\n\n content += child; // Note: we don't warn about invalid children here.\n // Instead, this is done separately below so that\n // it happens during the hydration code path too.\n });\n return content;\n}\n/**\n * Implements an