mirror of
https://github.com/zhenxun-org/zhenxun_bot.git
synced 2025-12-15 14:22:55 +08:00
4400 lines
144 KiB
JavaScript
4400 lines
144 KiB
JavaScript
/******/ (() => { // webpackBootstrap
|
||
/******/ var __webpack_modules__ = ({
|
||
|
||
/***/ 3397:
|
||
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {
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||
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||
"use strict";
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||
|
||
// EXPORTS
|
||
__webpack_require__.d(__webpack_exports__, {
|
||
A: () => (/* binding */ lunrLanguageZh)
|
||
});
|
||
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||
;// CONCATENATED MODULE: ./node_modules/@easyops-cn/docusaurus-search-local/dist/client/shared/generateTrimmer.js
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function generateTrimmer(wordCharacters){const startRegex=new RegExp("^[^"+wordCharacters+"]+","u");const endRegex=new RegExp("[^"+wordCharacters+"]+$","u");return function(token){return token.update(function(str){return str.replace(startRegex,"").replace(endRegex,"");});};}
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||
;// CONCATENATED MODULE: ./node_modules/@easyops-cn/docusaurus-search-local/dist/client/shared/lunrLanguageZh.js
|
||
// `lunr-languages/lunr.stemmer.support` is required.
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function lunrLanguageZh(lunr,tokenizer){lunr.trimmerSupport.generateTrimmer=generateTrimmer;lunr.zh=function(){this.pipeline.reset();this.pipeline.add(lunr.zh.trimmer,lunr.zh.stopWordFilter);if(tokenizer){this.tokenizer=tokenizer;}};if(tokenizer){lunr.zh.tokenizer=tokenizer;}// https://zhuanlan.zhihu.com/p/33335629
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// https://mothereff.in/regexpu#input=const+regex+%3D+/%5Cp%7BUnified_Ideograph%7D/u%3B&unicodePropertyEscape=1
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lunr.zh.wordCharacters="\\u3400-\\u4DBF\\u4E00-\\u9FFC\\uFA0E\\uFA0F\\uFA11\\uFA13\\uFA14\\uFA1F\\uFA21\\uFA23\\uFA24\\uFA27-\\uFA29\\u{20000}-\\u{2A6DD}\\u{2A700}-\\u{2B734}\\u{2B740}-\\u{2B81D}\\u{2B820}-\\u{2CEA1}\\u{2CEB0}-\\u{2EBE0}\\u{30000}-\\u{3134A}";lunr.zh.trimmer=lunr.trimmerSupport.generateTrimmer(lunr.zh.wordCharacters);lunr.Pipeline.registerFunction(lunr.zh.trimmer,"trimmer-zh");/* lunr stop word filter. see https://www.ranks.nl/stopwords/chinese-stopwords */lunr.zh.stopWordFilter=lunr.generateStopWordFilter("的 一 不 在 人 有 是 为 以 于 上 他 而 后 之 来 及 了 因 下 可 到 由 这 与 也 此 但 并 个 其 已 无 小 我 们 起 最 再 今 去 好 只 又 或 很 亦 某 把 那 你 乃 它 吧 被 比 别 趁 当 从 到 得 打 凡 儿 尔 该 各 给 跟 和 何 还 即 几 既 看 据 距 靠 啦 了 另 么 每 们 嘛 拿 哪 那 您 凭 且 却 让 仍 啥 如 若 使 谁 虽 随 同 所 她 哇 嗡 往 哪 些 向 沿 哟 用 于 咱 则 怎 曾 至 致 着 诸 自".split(" "));lunr.Pipeline.registerFunction(lunr.zh.stopWordFilter,"stopWordFilter-zh");}
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||
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||
/***/ }),
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||
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||
/***/ 6106:
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||
/***/ (function(module, exports, __webpack_require__) {
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||
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||
var __WEBPACK_AMD_DEFINE_FACTORY__, __WEBPACK_AMD_DEFINE_RESULT__;/**
|
||
* export the module via AMD, CommonJS or as a browser global
|
||
* Export code from https://github.com/umdjs/umd/blob/master/returnExports.js
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||
*/
|
||
;(function (root, factory) {
|
||
if (true) {
|
||
// AMD. Register as an anonymous module.
|
||
!(__WEBPACK_AMD_DEFINE_FACTORY__ = (factory),
|
||
__WEBPACK_AMD_DEFINE_RESULT__ = (typeof __WEBPACK_AMD_DEFINE_FACTORY__ === 'function' ?
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||
(__WEBPACK_AMD_DEFINE_FACTORY__.call(exports, __webpack_require__, exports, module)) :
|
||
__WEBPACK_AMD_DEFINE_FACTORY__),
|
||
__WEBPACK_AMD_DEFINE_RESULT__ !== undefined && (module.exports = __WEBPACK_AMD_DEFINE_RESULT__))
|
||
} else {}
|
||
}(this, function () {
|
||
/**
|
||
* Just return a value to define the module export.
|
||
* This example returns an object, but the module
|
||
* can return a function as the exported value.
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||
*/
|
||
return function(lunr) {
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||
/* Set up the pipeline for indexing content in multiple languages. The
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||
corresponding lunr.{lang} files must be loaded before calling this
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||
function; English ('en') is built in.
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||
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||
Returns: a lunr plugin for use in your indexer.
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||
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||
Known drawback: every word will be stemmed with stemmers for every
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language. This could mean that sometimes words that have the same
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stemming root will not be stemmed as such.
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*/
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||
lunr.multiLanguage = function(/* lang1, lang2, ... */) {
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var languages = Array.prototype.slice.call(arguments);
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var nameSuffix = languages.join('-');
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var wordCharacters = "";
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||
var pipeline = [];
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||
var searchPipeline = [];
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||
for (var i = 0; i < languages.length; ++i) {
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if (languages[i] == 'en') {
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wordCharacters += '\\w';
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pipeline.unshift(lunr.stopWordFilter);
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||
pipeline.push(lunr.stemmer);
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searchPipeline.push(lunr.stemmer);
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} else {
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wordCharacters += lunr[languages[i]].wordCharacters;
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if (lunr[languages[i]].stopWordFilter) {
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pipeline.unshift(lunr[languages[i]].stopWordFilter);
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||
}
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||
if (lunr[languages[i]].stemmer) {
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pipeline.push(lunr[languages[i]].stemmer);
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searchPipeline.push(lunr[languages[i]].stemmer);
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}
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||
}
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||
};
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var multiTrimmer = lunr.trimmerSupport.generateTrimmer(wordCharacters);
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lunr.Pipeline.registerFunction(multiTrimmer, 'lunr-multi-trimmer-' + nameSuffix);
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pipeline.unshift(multiTrimmer);
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return function() {
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this.pipeline.reset();
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this.pipeline.add.apply(this.pipeline, pipeline);
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||
// for lunr version 2
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// this is necessary so that every searched word is also stemmed before
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||
// in lunr <= 1 this is not needed, as it is done using the normal pipeline
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||
if (this.searchPipeline) {
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||
this.searchPipeline.reset();
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||
this.searchPipeline.add.apply(this.searchPipeline, searchPipeline);
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||
}
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||
};
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||
}
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||
}
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||
}));
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||
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||
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||
/***/ }),
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||
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||
/***/ 6121:
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||
/***/ (function(module, exports, __webpack_require__) {
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||
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||
var __WEBPACK_AMD_DEFINE_FACTORY__, __WEBPACK_AMD_DEFINE_RESULT__;/*!
|
||
* Snowball JavaScript Library v0.3
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||
* http://code.google.com/p/urim/
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||
* http://snowball.tartarus.org/
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||
*
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||
* Copyright 2010, Oleg Mazko
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||
* http://www.mozilla.org/MPL/
|
||
*/
|
||
|
||
/**
|
||
* export the module via AMD, CommonJS or as a browser global
|
||
* Export code from https://github.com/umdjs/umd/blob/master/returnExports.js
|
||
*/
|
||
;(function (root, factory) {
|
||
if (true) {
|
||
// AMD. Register as an anonymous module.
|
||
!(__WEBPACK_AMD_DEFINE_FACTORY__ = (factory),
|
||
__WEBPACK_AMD_DEFINE_RESULT__ = (typeof __WEBPACK_AMD_DEFINE_FACTORY__ === 'function' ?
|
||
(__WEBPACK_AMD_DEFINE_FACTORY__.call(exports, __webpack_require__, exports, module)) :
|
||
__WEBPACK_AMD_DEFINE_FACTORY__),
|
||
__WEBPACK_AMD_DEFINE_RESULT__ !== undefined && (module.exports = __WEBPACK_AMD_DEFINE_RESULT__))
|
||
} else {}
|
||
}(this, function () {
|
||
/**
|
||
* Just return a value to define the module export.
|
||
* This example returns an object, but the module
|
||
* can return a function as the exported value.
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||
*/
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||
return function(lunr) {
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||
/* provides utilities for the included stemmers */
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lunr.stemmerSupport = {
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Among: function(s, substring_i, result, method) {
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this.toCharArray = function(s) {
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var sLength = s.length, charArr = new Array(sLength);
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||
for (var i = 0; i < sLength; i++)
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||
charArr[i] = s.charCodeAt(i);
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||
return charArr;
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||
};
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||
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||
if ((!s && s != "") || (!substring_i && (substring_i != 0)) || !result)
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throw ("Bad Among initialisation: s:" + s + ", substring_i: "
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||
+ substring_i + ", result: " + result);
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this.s_size = s.length;
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||
this.s = this.toCharArray(s);
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this.substring_i = substring_i;
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this.result = result;
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this.method = method;
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||
},
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SnowballProgram: function() {
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var current;
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||
return {
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bra : 0,
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||
ket : 0,
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limit : 0,
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||
cursor : 0,
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||
limit_backward : 0,
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setCurrent : function(word) {
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current = word;
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||
this.cursor = 0;
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||
this.limit = word.length;
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this.limit_backward = 0;
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this.bra = this.cursor;
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this.ket = this.limit;
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||
},
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getCurrent : function() {
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var result = current;
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||
current = null;
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||
return result;
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||
},
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||
in_grouping : function(s, min, max) {
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||
if (this.cursor < this.limit) {
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||
var ch = current.charCodeAt(this.cursor);
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||
if (ch <= max && ch >= min) {
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||
ch -= min;
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||
if (s[ch >> 3] & (0X1 << (ch & 0X7))) {
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||
this.cursor++;
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||
return true;
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||
}
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||
}
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||
}
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||
return false;
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||
},
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||
in_grouping_b : function(s, min, max) {
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||
if (this.cursor > this.limit_backward) {
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||
var ch = current.charCodeAt(this.cursor - 1);
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||
if (ch <= max && ch >= min) {
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||
ch -= min;
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||
if (s[ch >> 3] & (0X1 << (ch & 0X7))) {
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||
this.cursor--;
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||
return true;
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||
}
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||
}
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||
}
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||
return false;
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||
},
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||
out_grouping : function(s, min, max) {
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||
if (this.cursor < this.limit) {
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||
var ch = current.charCodeAt(this.cursor);
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||
if (ch > max || ch < min) {
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||
this.cursor++;
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||
return true;
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||
}
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||
ch -= min;
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||
if (!(s[ch >> 3] & (0X1 << (ch & 0X7)))) {
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||
this.cursor++;
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||
return true;
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||
}
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||
}
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||
return false;
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||
},
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||
out_grouping_b : function(s, min, max) {
|
||
if (this.cursor > this.limit_backward) {
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||
var ch = current.charCodeAt(this.cursor - 1);
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||
if (ch > max || ch < min) {
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||
this.cursor--;
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||
return true;
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||
}
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||
ch -= min;
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||
if (!(s[ch >> 3] & (0X1 << (ch & 0X7)))) {
|
||
this.cursor--;
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||
return true;
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||
}
|
||
}
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||
return false;
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||
},
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||
eq_s : function(s_size, s) {
|
||
if (this.limit - this.cursor < s_size)
|
||
return false;
|
||
for (var i = 0; i < s_size; i++)
|
||
if (current.charCodeAt(this.cursor + i) != s.charCodeAt(i))
|
||
return false;
|
||
this.cursor += s_size;
|
||
return true;
|
||
},
|
||
eq_s_b : function(s_size, s) {
|
||
if (this.cursor - this.limit_backward < s_size)
|
||
return false;
|
||
for (var i = 0; i < s_size; i++)
|
||
if (current.charCodeAt(this.cursor - s_size + i) != s
|
||
.charCodeAt(i))
|
||
return false;
|
||
this.cursor -= s_size;
|
||
return true;
|
||
},
|
||
find_among : function(v, v_size) {
|
||
var i = 0, j = v_size, c = this.cursor, l = this.limit, common_i = 0, common_j = 0, first_key_inspected = false;
|
||
while (true) {
|
||
var k = i + ((j - i) >> 1), diff = 0, common = common_i < common_j
|
||
? common_i
|
||
: common_j, w = v[k];
|
||
for (var i2 = common; i2 < w.s_size; i2++) {
|
||
if (c + common == l) {
|
||
diff = -1;
|
||
break;
|
||
}
|
||
diff = current.charCodeAt(c + common) - w.s[i2];
|
||
if (diff)
|
||
break;
|
||
common++;
|
||
}
|
||
if (diff < 0) {
|
||
j = k;
|
||
common_j = common;
|
||
} else {
|
||
i = k;
|
||
common_i = common;
|
||
}
|
||
if (j - i <= 1) {
|
||
if (i > 0 || j == i || first_key_inspected)
|
||
break;
|
||
first_key_inspected = true;
|
||
}
|
||
}
|
||
while (true) {
|
||
var w = v[i];
|
||
if (common_i >= w.s_size) {
|
||
this.cursor = c + w.s_size;
|
||
if (!w.method)
|
||
return w.result;
|
||
var res = w.method();
|
||
this.cursor = c + w.s_size;
|
||
if (res)
|
||
return w.result;
|
||
}
|
||
i = w.substring_i;
|
||
if (i < 0)
|
||
return 0;
|
||
}
|
||
},
|
||
find_among_b : function(v, v_size) {
|
||
var i = 0, j = v_size, c = this.cursor, lb = this.limit_backward, common_i = 0, common_j = 0, first_key_inspected = false;
|
||
while (true) {
|
||
var k = i + ((j - i) >> 1), diff = 0, common = common_i < common_j
|
||
? common_i
|
||
: common_j, w = v[k];
|
||
for (var i2 = w.s_size - 1 - common; i2 >= 0; i2--) {
|
||
if (c - common == lb) {
|
||
diff = -1;
|
||
break;
|
||
}
|
||
diff = current.charCodeAt(c - 1 - common) - w.s[i2];
|
||
if (diff)
|
||
break;
|
||
common++;
|
||
}
|
||
if (diff < 0) {
|
||
j = k;
|
||
common_j = common;
|
||
} else {
|
||
i = k;
|
||
common_i = common;
|
||
}
|
||
if (j - i <= 1) {
|
||
if (i > 0 || j == i || first_key_inspected)
|
||
break;
|
||
first_key_inspected = true;
|
||
}
|
||
}
|
||
while (true) {
|
||
var w = v[i];
|
||
if (common_i >= w.s_size) {
|
||
this.cursor = c - w.s_size;
|
||
if (!w.method)
|
||
return w.result;
|
||
var res = w.method();
|
||
this.cursor = c - w.s_size;
|
||
if (res)
|
||
return w.result;
|
||
}
|
||
i = w.substring_i;
|
||
if (i < 0)
|
||
return 0;
|
||
}
|
||
},
|
||
replace_s : function(c_bra, c_ket, s) {
|
||
var adjustment = s.length - (c_ket - c_bra), left = current
|
||
.substring(0, c_bra), right = current.substring(c_ket);
|
||
current = left + s + right;
|
||
this.limit += adjustment;
|
||
if (this.cursor >= c_ket)
|
||
this.cursor += adjustment;
|
||
else if (this.cursor > c_bra)
|
||
this.cursor = c_bra;
|
||
return adjustment;
|
||
},
|
||
slice_check : function() {
|
||
if (this.bra < 0 || this.bra > this.ket || this.ket > this.limit
|
||
|| this.limit > current.length)
|
||
throw ("faulty slice operation");
|
||
},
|
||
slice_from : function(s) {
|
||
this.slice_check();
|
||
this.replace_s(this.bra, this.ket, s);
|
||
},
|
||
slice_del : function() {
|
||
this.slice_from("");
|
||
},
|
||
insert : function(c_bra, c_ket, s) {
|
||
var adjustment = this.replace_s(c_bra, c_ket, s);
|
||
if (c_bra <= this.bra)
|
||
this.bra += adjustment;
|
||
if (c_bra <= this.ket)
|
||
this.ket += adjustment;
|
||
},
|
||
slice_to : function() {
|
||
this.slice_check();
|
||
return current.substring(this.bra, this.ket);
|
||
},
|
||
eq_v_b : function(s) {
|
||
return this.eq_s_b(s.length, s);
|
||
}
|
||
};
|
||
}
|
||
};
|
||
|
||
lunr.trimmerSupport = {
|
||
generateTrimmer: function(wordCharacters) {
|
||
var startRegex = new RegExp("^[^" + wordCharacters + "]+")
|
||
var endRegex = new RegExp("[^" + wordCharacters + "]+$")
|
||
|
||
return function(token) {
|
||
// for lunr version 2
|
||
if (typeof token.update === "function") {
|
||
return token.update(function (s) {
|
||
return s
|
||
.replace(startRegex, '')
|
||
.replace(endRegex, '');
|
||
})
|
||
} else { // for lunr version 1
|
||
return token
|
||
.replace(startRegex, '')
|
||
.replace(endRegex, '');
|
||
}
|
||
};
|
||
}
|
||
}
|
||
}
|
||
}));
|
||
|
||
|
||
/***/ }),
|
||
|
||
/***/ 8291:
|
||
/***/ ((module, exports, __webpack_require__) => {
|
||
|
||
var __WEBPACK_AMD_DEFINE_FACTORY__, __WEBPACK_AMD_DEFINE_RESULT__;/**
|
||
* lunr - http://lunrjs.com - A bit like Solr, but much smaller and not as bright - 2.3.9
|
||
* Copyright (C) 2020 Oliver Nightingale
|
||
* @license MIT
|
||
*/
|
||
|
||
;(function(){
|
||
|
||
/**
|
||
* A convenience function for configuring and constructing
|
||
* a new lunr Index.
|
||
*
|
||
* A lunr.Builder instance is created and the pipeline setup
|
||
* with a trimmer, stop word filter and stemmer.
|
||
*
|
||
* This builder object is yielded to the configuration function
|
||
* that is passed as a parameter, allowing the list of fields
|
||
* and other builder parameters to be customised.
|
||
*
|
||
* All documents _must_ be added within the passed config function.
|
||
*
|
||
* @example
|
||
* var idx = lunr(function () {
|
||
* this.field('title')
|
||
* this.field('body')
|
||
* this.ref('id')
|
||
*
|
||
* documents.forEach(function (doc) {
|
||
* this.add(doc)
|
||
* }, this)
|
||
* })
|
||
*
|
||
* @see {@link lunr.Builder}
|
||
* @see {@link lunr.Pipeline}
|
||
* @see {@link lunr.trimmer}
|
||
* @see {@link lunr.stopWordFilter}
|
||
* @see {@link lunr.stemmer}
|
||
* @namespace {function} lunr
|
||
*/
|
||
var lunr = function (config) {
|
||
var builder = new lunr.Builder
|
||
|
||
builder.pipeline.add(
|
||
lunr.trimmer,
|
||
lunr.stopWordFilter,
|
||
lunr.stemmer
|
||
)
|
||
|
||
builder.searchPipeline.add(
|
||
lunr.stemmer
|
||
)
|
||
|
||
config.call(builder, builder)
|
||
return builder.build()
|
||
}
|
||
|
||
lunr.version = "2.3.9"
|
||
/*!
|
||
* lunr.utils
|
||
* Copyright (C) 2020 Oliver Nightingale
|
||
*/
|
||
|
||
/**
|
||
* A namespace containing utils for the rest of the lunr library
|
||
* @namespace lunr.utils
|
||
*/
|
||
lunr.utils = {}
|
||
|
||
/**
|
||
* Print a warning message to the console.
|
||
*
|
||
* @param {String} message The message to be printed.
|
||
* @memberOf lunr.utils
|
||
* @function
|
||
*/
|
||
lunr.utils.warn = (function (global) {
|
||
/* eslint-disable no-console */
|
||
return function (message) {
|
||
if (global.console && console.warn) {
|
||
console.warn(message)
|
||
}
|
||
}
|
||
/* eslint-enable no-console */
|
||
})(this)
|
||
|
||
/**
|
||
* Convert an object to a string.
|
||
*
|
||
* In the case of `null` and `undefined` the function returns
|
||
* the empty string, in all other cases the result of calling
|
||
* `toString` on the passed object is returned.
|
||
*
|
||
* @param {Any} obj The object to convert to a string.
|
||
* @return {String} string representation of the passed object.
|
||
* @memberOf lunr.utils
|
||
*/
|
||
lunr.utils.asString = function (obj) {
|
||
if (obj === void 0 || obj === null) {
|
||
return ""
|
||
} else {
|
||
return obj.toString()
|
||
}
|
||
}
|
||
|
||
/**
|
||
* Clones an object.
|
||
*
|
||
* Will create a copy of an existing object such that any mutations
|
||
* on the copy cannot affect the original.
|
||
*
|
||
* Only shallow objects are supported, passing a nested object to this
|
||
* function will cause a TypeError.
|
||
*
|
||
* Objects with primitives, and arrays of primitives are supported.
|
||
*
|
||
* @param {Object} obj The object to clone.
|
||
* @return {Object} a clone of the passed object.
|
||
* @throws {TypeError} when a nested object is passed.
|
||
* @memberOf Utils
|
||
*/
|
||
lunr.utils.clone = function (obj) {
|
||
if (obj === null || obj === undefined) {
|
||
return obj
|
||
}
|
||
|
||
var clone = Object.create(null),
|
||
keys = Object.keys(obj)
|
||
|
||
for (var i = 0; i < keys.length; i++) {
|
||
var key = keys[i],
|
||
val = obj[key]
|
||
|
||
if (Array.isArray(val)) {
|
||
clone[key] = val.slice()
|
||
continue
|
||
}
|
||
|
||
if (typeof val === 'string' ||
|
||
typeof val === 'number' ||
|
||
typeof val === 'boolean') {
|
||
clone[key] = val
|
||
continue
|
||
}
|
||
|
||
throw new TypeError("clone is not deep and does not support nested objects")
|
||
}
|
||
|
||
return clone
|
||
}
|
||
lunr.FieldRef = function (docRef, fieldName, stringValue) {
|
||
this.docRef = docRef
|
||
this.fieldName = fieldName
|
||
this._stringValue = stringValue
|
||
}
|
||
|
||
lunr.FieldRef.joiner = "/"
|
||
|
||
lunr.FieldRef.fromString = function (s) {
|
||
var n = s.indexOf(lunr.FieldRef.joiner)
|
||
|
||
if (n === -1) {
|
||
throw "malformed field ref string"
|
||
}
|
||
|
||
var fieldRef = s.slice(0, n),
|
||
docRef = s.slice(n + 1)
|
||
|
||
return new lunr.FieldRef (docRef, fieldRef, s)
|
||
}
|
||
|
||
lunr.FieldRef.prototype.toString = function () {
|
||
if (this._stringValue == undefined) {
|
||
this._stringValue = this.fieldName + lunr.FieldRef.joiner + this.docRef
|
||
}
|
||
|
||
return this._stringValue
|
||
}
|
||
/*!
|
||
* lunr.Set
|
||
* Copyright (C) 2020 Oliver Nightingale
|
||
*/
|
||
|
||
/**
|
||
* A lunr set.
|
||
*
|
||
* @constructor
|
||
*/
|
||
lunr.Set = function (elements) {
|
||
this.elements = Object.create(null)
|
||
|
||
if (elements) {
|
||
this.length = elements.length
|
||
|
||
for (var i = 0; i < this.length; i++) {
|
||
this.elements[elements[i]] = true
|
||
}
|
||
} else {
|
||
this.length = 0
|
||
}
|
||
}
|
||
|
||
/**
|
||
* A complete set that contains all elements.
|
||
*
|
||
* @static
|
||
* @readonly
|
||
* @type {lunr.Set}
|
||
*/
|
||
lunr.Set.complete = {
|
||
intersect: function (other) {
|
||
return other
|
||
},
|
||
|
||
union: function () {
|
||
return this
|
||
},
|
||
|
||
contains: function () {
|
||
return true
|
||
}
|
||
}
|
||
|
||
/**
|
||
* An empty set that contains no elements.
|
||
*
|
||
* @static
|
||
* @readonly
|
||
* @type {lunr.Set}
|
||
*/
|
||
lunr.Set.empty = {
|
||
intersect: function () {
|
||
return this
|
||
},
|
||
|
||
union: function (other) {
|
||
return other
|
||
},
|
||
|
||
contains: function () {
|
||
return false
|
||
}
|
||
}
|
||
|
||
/**
|
||
* Returns true if this set contains the specified object.
|
||
*
|
||
* @param {object} object - Object whose presence in this set is to be tested.
|
||
* @returns {boolean} - True if this set contains the specified object.
|
||
*/
|
||
lunr.Set.prototype.contains = function (object) {
|
||
return !!this.elements[object]
|
||
}
|
||
|
||
/**
|
||
* Returns a new set containing only the elements that are present in both
|
||
* this set and the specified set.
|
||
*
|
||
* @param {lunr.Set} other - set to intersect with this set.
|
||
* @returns {lunr.Set} a new set that is the intersection of this and the specified set.
|
||
*/
|
||
|
||
lunr.Set.prototype.intersect = function (other) {
|
||
var a, b, elements, intersection = []
|
||
|
||
if (other === lunr.Set.complete) {
|
||
return this
|
||
}
|
||
|
||
if (other === lunr.Set.empty) {
|
||
return other
|
||
}
|
||
|
||
if (this.length < other.length) {
|
||
a = this
|
||
b = other
|
||
} else {
|
||
a = other
|
||
b = this
|
||
}
|
||
|
||
elements = Object.keys(a.elements)
|
||
|
||
for (var i = 0; i < elements.length; i++) {
|
||
var element = elements[i]
|
||
if (element in b.elements) {
|
||
intersection.push(element)
|
||
}
|
||
}
|
||
|
||
return new lunr.Set (intersection)
|
||
}
|
||
|
||
/**
|
||
* Returns a new set combining the elements of this and the specified set.
|
||
*
|
||
* @param {lunr.Set} other - set to union with this set.
|
||
* @return {lunr.Set} a new set that is the union of this and the specified set.
|
||
*/
|
||
|
||
lunr.Set.prototype.union = function (other) {
|
||
if (other === lunr.Set.complete) {
|
||
return lunr.Set.complete
|
||
}
|
||
|
||
if (other === lunr.Set.empty) {
|
||
return this
|
||
}
|
||
|
||
return new lunr.Set(Object.keys(this.elements).concat(Object.keys(other.elements)))
|
||
}
|
||
/**
|
||
* A function to calculate the inverse document frequency for
|
||
* a posting. This is shared between the builder and the index
|
||
*
|
||
* @private
|
||
* @param {object} posting - The posting for a given term
|
||
* @param {number} documentCount - The total number of documents.
|
||
*/
|
||
lunr.idf = function (posting, documentCount) {
|
||
var documentsWithTerm = 0
|
||
|
||
for (var fieldName in posting) {
|
||
if (fieldName == '_index') continue // Ignore the term index, its not a field
|
||
documentsWithTerm += Object.keys(posting[fieldName]).length
|
||
}
|
||
|
||
var x = (documentCount - documentsWithTerm + 0.5) / (documentsWithTerm + 0.5)
|
||
|
||
return Math.log(1 + Math.abs(x))
|
||
}
|
||
|
||
/**
|
||
* A token wraps a string representation of a token
|
||
* as it is passed through the text processing pipeline.
|
||
*
|
||
* @constructor
|
||
* @param {string} [str=''] - The string token being wrapped.
|
||
* @param {object} [metadata={}] - Metadata associated with this token.
|
||
*/
|
||
lunr.Token = function (str, metadata) {
|
||
this.str = str || ""
|
||
this.metadata = metadata || {}
|
||
}
|
||
|
||
/**
|
||
* Returns the token string that is being wrapped by this object.
|
||
*
|
||
* @returns {string}
|
||
*/
|
||
lunr.Token.prototype.toString = function () {
|
||
return this.str
|
||
}
|
||
|
||
/**
|
||
* A token update function is used when updating or optionally
|
||
* when cloning a token.
|
||
*
|
||
* @callback lunr.Token~updateFunction
|
||
* @param {string} str - The string representation of the token.
|
||
* @param {Object} metadata - All metadata associated with this token.
|
||
*/
|
||
|
||
/**
|
||
* Applies the given function to the wrapped string token.
|
||
*
|
||
* @example
|
||
* token.update(function (str, metadata) {
|
||
* return str.toUpperCase()
|
||
* })
|
||
*
|
||
* @param {lunr.Token~updateFunction} fn - A function to apply to the token string.
|
||
* @returns {lunr.Token}
|
||
*/
|
||
lunr.Token.prototype.update = function (fn) {
|
||
this.str = fn(this.str, this.metadata)
|
||
return this
|
||
}
|
||
|
||
/**
|
||
* Creates a clone of this token. Optionally a function can be
|
||
* applied to the cloned token.
|
||
*
|
||
* @param {lunr.Token~updateFunction} [fn] - An optional function to apply to the cloned token.
|
||
* @returns {lunr.Token}
|
||
*/
|
||
lunr.Token.prototype.clone = function (fn) {
|
||
fn = fn || function (s) { return s }
|
||
return new lunr.Token (fn(this.str, this.metadata), this.metadata)
|
||
}
|
||
/*!
|
||
* lunr.tokenizer
|
||
* Copyright (C) 2020 Oliver Nightingale
|
||
*/
|
||
|
||
/**
|
||
* A function for splitting a string into tokens ready to be inserted into
|
||
* the search index. Uses `lunr.tokenizer.separator` to split strings, change
|
||
* the value of this property to change how strings are split into tokens.
|
||
*
|
||
* This tokenizer will convert its parameter to a string by calling `toString` and
|
||
* then will split this string on the character in `lunr.tokenizer.separator`.
|
||
* Arrays will have their elements converted to strings and wrapped in a lunr.Token.
|
||
*
|
||
* Optional metadata can be passed to the tokenizer, this metadata will be cloned and
|
||
* added as metadata to every token that is created from the object to be tokenized.
|
||
*
|
||
* @static
|
||
* @param {?(string|object|object[])} obj - The object to convert into tokens
|
||
* @param {?object} metadata - Optional metadata to associate with every token
|
||
* @returns {lunr.Token[]}
|
||
* @see {@link lunr.Pipeline}
|
||
*/
|
||
lunr.tokenizer = function (obj, metadata) {
|
||
if (obj == null || obj == undefined) {
|
||
return []
|
||
}
|
||
|
||
if (Array.isArray(obj)) {
|
||
return obj.map(function (t) {
|
||
return new lunr.Token(
|
||
lunr.utils.asString(t).toLowerCase(),
|
||
lunr.utils.clone(metadata)
|
||
)
|
||
})
|
||
}
|
||
|
||
var str = obj.toString().toLowerCase(),
|
||
len = str.length,
|
||
tokens = []
|
||
|
||
for (var sliceEnd = 0, sliceStart = 0; sliceEnd <= len; sliceEnd++) {
|
||
var char = str.charAt(sliceEnd),
|
||
sliceLength = sliceEnd - sliceStart
|
||
|
||
if ((char.match(lunr.tokenizer.separator) || sliceEnd == len)) {
|
||
|
||
if (sliceLength > 0) {
|
||
var tokenMetadata = lunr.utils.clone(metadata) || {}
|
||
tokenMetadata["position"] = [sliceStart, sliceLength]
|
||
tokenMetadata["index"] = tokens.length
|
||
|
||
tokens.push(
|
||
new lunr.Token (
|
||
str.slice(sliceStart, sliceEnd),
|
||
tokenMetadata
|
||
)
|
||
)
|
||
}
|
||
|
||
sliceStart = sliceEnd + 1
|
||
}
|
||
|
||
}
|
||
|
||
return tokens
|
||
}
|
||
|
||
/**
|
||
* The separator used to split a string into tokens. Override this property to change the behaviour of
|
||
* `lunr.tokenizer` behaviour when tokenizing strings. By default this splits on whitespace and hyphens.
|
||
*
|
||
* @static
|
||
* @see lunr.tokenizer
|
||
*/
|
||
lunr.tokenizer.separator = /[\s\-]+/
|
||
/*!
|
||
* lunr.Pipeline
|
||
* Copyright (C) 2020 Oliver Nightingale
|
||
*/
|
||
|
||
/**
|
||
* lunr.Pipelines maintain an ordered list of functions to be applied to all
|
||
* tokens in documents entering the search index and queries being ran against
|
||
* the index.
|
||
*
|
||
* An instance of lunr.Index created with the lunr shortcut will contain a
|
||
* pipeline with a stop word filter and an English language stemmer. Extra
|
||
* functions can be added before or after either of these functions or these
|
||
* default functions can be removed.
|
||
*
|
||
* When run the pipeline will call each function in turn, passing a token, the
|
||
* index of that token in the original list of all tokens and finally a list of
|
||
* all the original tokens.
|
||
*
|
||
* The output of functions in the pipeline will be passed to the next function
|
||
* in the pipeline. To exclude a token from entering the index the function
|
||
* should return undefined, the rest of the pipeline will not be called with
|
||
* this token.
|
||
*
|
||
* For serialisation of pipelines to work, all functions used in an instance of
|
||
* a pipeline should be registered with lunr.Pipeline. Registered functions can
|
||
* then be loaded. If trying to load a serialised pipeline that uses functions
|
||
* that are not registered an error will be thrown.
|
||
*
|
||
* If not planning on serialising the pipeline then registering pipeline functions
|
||
* is not necessary.
|
||
*
|
||
* @constructor
|
||
*/
|
||
lunr.Pipeline = function () {
|
||
this._stack = []
|
||
}
|
||
|
||
lunr.Pipeline.registeredFunctions = Object.create(null)
|
||
|
||
/**
|
||
* A pipeline function maps lunr.Token to lunr.Token. A lunr.Token contains the token
|
||
* string as well as all known metadata. A pipeline function can mutate the token string
|
||
* or mutate (or add) metadata for a given token.
|
||
*
|
||
* A pipeline function can indicate that the passed token should be discarded by returning
|
||
* null, undefined or an empty string. This token will not be passed to any downstream pipeline
|
||
* functions and will not be added to the index.
|
||
*
|
||
* Multiple tokens can be returned by returning an array of tokens. Each token will be passed
|
||
* to any downstream pipeline functions and all will returned tokens will be added to the index.
|
||
*
|
||
* Any number of pipeline functions may be chained together using a lunr.Pipeline.
|
||
*
|
||
* @interface lunr.PipelineFunction
|
||
* @param {lunr.Token} token - A token from the document being processed.
|
||
* @param {number} i - The index of this token in the complete list of tokens for this document/field.
|
||
* @param {lunr.Token[]} tokens - All tokens for this document/field.
|
||
* @returns {(?lunr.Token|lunr.Token[])}
|
||
*/
|
||
|
||
/**
|
||
* Register a function with the pipeline.
|
||
*
|
||
* Functions that are used in the pipeline should be registered if the pipeline
|
||
* needs to be serialised, or a serialised pipeline needs to be loaded.
|
||
*
|
||
* Registering a function does not add it to a pipeline, functions must still be
|
||
* added to instances of the pipeline for them to be used when running a pipeline.
|
||
*
|
||
* @param {lunr.PipelineFunction} fn - The function to check for.
|
||
* @param {String} label - The label to register this function with
|
||
*/
|
||
lunr.Pipeline.registerFunction = function (fn, label) {
|
||
if (label in this.registeredFunctions) {
|
||
lunr.utils.warn('Overwriting existing registered function: ' + label)
|
||
}
|
||
|
||
fn.label = label
|
||
lunr.Pipeline.registeredFunctions[fn.label] = fn
|
||
}
|
||
|
||
/**
|
||
* Warns if the function is not registered as a Pipeline function.
|
||
*
|
||
* @param {lunr.PipelineFunction} fn - The function to check for.
|
||
* @private
|
||
*/
|
||
lunr.Pipeline.warnIfFunctionNotRegistered = function (fn) {
|
||
var isRegistered = fn.label && (fn.label in this.registeredFunctions)
|
||
|
||
if (!isRegistered) {
|
||
lunr.utils.warn('Function is not registered with pipeline. This may cause problems when serialising the index.\n', fn)
|
||
}
|
||
}
|
||
|
||
/**
|
||
* Loads a previously serialised pipeline.
|
||
*
|
||
* All functions to be loaded must already be registered with lunr.Pipeline.
|
||
* If any function from the serialised data has not been registered then an
|
||
* error will be thrown.
|
||
*
|
||
* @param {Object} serialised - The serialised pipeline to load.
|
||
* @returns {lunr.Pipeline}
|
||
*/
|
||
lunr.Pipeline.load = function (serialised) {
|
||
var pipeline = new lunr.Pipeline
|
||
|
||
serialised.forEach(function (fnName) {
|
||
var fn = lunr.Pipeline.registeredFunctions[fnName]
|
||
|
||
if (fn) {
|
||
pipeline.add(fn)
|
||
} else {
|
||
throw new Error('Cannot load unregistered function: ' + fnName)
|
||
}
|
||
})
|
||
|
||
return pipeline
|
||
}
|
||
|
||
/**
|
||
* Adds new functions to the end of the pipeline.
|
||
*
|
||
* Logs a warning if the function has not been registered.
|
||
*
|
||
* @param {lunr.PipelineFunction[]} functions - Any number of functions to add to the pipeline.
|
||
*/
|
||
lunr.Pipeline.prototype.add = function () {
|
||
var fns = Array.prototype.slice.call(arguments)
|
||
|
||
fns.forEach(function (fn) {
|
||
lunr.Pipeline.warnIfFunctionNotRegistered(fn)
|
||
this._stack.push(fn)
|
||
}, this)
|
||
}
|
||
|
||
/**
|
||
* Adds a single function after a function that already exists in the
|
||
* pipeline.
|
||
*
|
||
* Logs a warning if the function has not been registered.
|
||
*
|
||
* @param {lunr.PipelineFunction} existingFn - A function that already exists in the pipeline.
|
||
* @param {lunr.PipelineFunction} newFn - The new function to add to the pipeline.
|
||
*/
|
||
lunr.Pipeline.prototype.after = function (existingFn, newFn) {
|
||
lunr.Pipeline.warnIfFunctionNotRegistered(newFn)
|
||
|
||
var pos = this._stack.indexOf(existingFn)
|
||
if (pos == -1) {
|
||
throw new Error('Cannot find existingFn')
|
||
}
|
||
|
||
pos = pos + 1
|
||
this._stack.splice(pos, 0, newFn)
|
||
}
|
||
|
||
/**
|
||
* Adds a single function before a function that already exists in the
|
||
* pipeline.
|
||
*
|
||
* Logs a warning if the function has not been registered.
|
||
*
|
||
* @param {lunr.PipelineFunction} existingFn - A function that already exists in the pipeline.
|
||
* @param {lunr.PipelineFunction} newFn - The new function to add to the pipeline.
|
||
*/
|
||
lunr.Pipeline.prototype.before = function (existingFn, newFn) {
|
||
lunr.Pipeline.warnIfFunctionNotRegistered(newFn)
|
||
|
||
var pos = this._stack.indexOf(existingFn)
|
||
if (pos == -1) {
|
||
throw new Error('Cannot find existingFn')
|
||
}
|
||
|
||
this._stack.splice(pos, 0, newFn)
|
||
}
|
||
|
||
/**
|
||
* Removes a function from the pipeline.
|
||
*
|
||
* @param {lunr.PipelineFunction} fn The function to remove from the pipeline.
|
||
*/
|
||
lunr.Pipeline.prototype.remove = function (fn) {
|
||
var pos = this._stack.indexOf(fn)
|
||
if (pos == -1) {
|
||
return
|
||
}
|
||
|
||
this._stack.splice(pos, 1)
|
||
}
|
||
|
||
/**
|
||
* Runs the current list of functions that make up the pipeline against the
|
||
* passed tokens.
|
||
*
|
||
* @param {Array} tokens The tokens to run through the pipeline.
|
||
* @returns {Array}
|
||
*/
|
||
lunr.Pipeline.prototype.run = function (tokens) {
|
||
var stackLength = this._stack.length
|
||
|
||
for (var i = 0; i < stackLength; i++) {
|
||
var fn = this._stack[i]
|
||
var memo = []
|
||
|
||
for (var j = 0; j < tokens.length; j++) {
|
||
var result = fn(tokens[j], j, tokens)
|
||
|
||
if (result === null || result === void 0 || result === '') continue
|
||
|
||
if (Array.isArray(result)) {
|
||
for (var k = 0; k < result.length; k++) {
|
||
memo.push(result[k])
|
||
}
|
||
} else {
|
||
memo.push(result)
|
||
}
|
||
}
|
||
|
||
tokens = memo
|
||
}
|
||
|
||
return tokens
|
||
}
|
||
|
||
/**
|
||
* Convenience method for passing a string through a pipeline and getting
|
||
* strings out. This method takes care of wrapping the passed string in a
|
||
* token and mapping the resulting tokens back to strings.
|
||
*
|
||
* @param {string} str - The string to pass through the pipeline.
|
||
* @param {?object} metadata - Optional metadata to associate with the token
|
||
* passed to the pipeline.
|
||
* @returns {string[]}
|
||
*/
|
||
lunr.Pipeline.prototype.runString = function (str, metadata) {
|
||
var token = new lunr.Token (str, metadata)
|
||
|
||
return this.run([token]).map(function (t) {
|
||
return t.toString()
|
||
})
|
||
}
|
||
|
||
/**
|
||
* Resets the pipeline by removing any existing processors.
|
||
*
|
||
*/
|
||
lunr.Pipeline.prototype.reset = function () {
|
||
this._stack = []
|
||
}
|
||
|
||
/**
|
||
* Returns a representation of the pipeline ready for serialisation.
|
||
*
|
||
* Logs a warning if the function has not been registered.
|
||
*
|
||
* @returns {Array}
|
||
*/
|
||
lunr.Pipeline.prototype.toJSON = function () {
|
||
return this._stack.map(function (fn) {
|
||
lunr.Pipeline.warnIfFunctionNotRegistered(fn)
|
||
|
||
return fn.label
|
||
})
|
||
}
|
||
/*!
|
||
* lunr.Vector
|
||
* Copyright (C) 2020 Oliver Nightingale
|
||
*/
|
||
|
||
/**
|
||
* A vector is used to construct the vector space of documents and queries. These
|
||
* vectors support operations to determine the similarity between two documents or
|
||
* a document and a query.
|
||
*
|
||
* Normally no parameters are required for initializing a vector, but in the case of
|
||
* loading a previously dumped vector the raw elements can be provided to the constructor.
|
||
*
|
||
* For performance reasons vectors are implemented with a flat array, where an elements
|
||
* index is immediately followed by its value. E.g. [index, value, index, value]. This
|
||
* allows the underlying array to be as sparse as possible and still offer decent
|
||
* performance when being used for vector calculations.
|
||
*
|
||
* @constructor
|
||
* @param {Number[]} [elements] - The flat list of element index and element value pairs.
|
||
*/
|
||
lunr.Vector = function (elements) {
|
||
this._magnitude = 0
|
||
this.elements = elements || []
|
||
}
|
||
|
||
|
||
/**
|
||
* Calculates the position within the vector to insert a given index.
|
||
*
|
||
* This is used internally by insert and upsert. If there are duplicate indexes then
|
||
* the position is returned as if the value for that index were to be updated, but it
|
||
* is the callers responsibility to check whether there is a duplicate at that index
|
||
*
|
||
* @param {Number} insertIdx - The index at which the element should be inserted.
|
||
* @returns {Number}
|
||
*/
|
||
lunr.Vector.prototype.positionForIndex = function (index) {
|
||
// For an empty vector the tuple can be inserted at the beginning
|
||
if (this.elements.length == 0) {
|
||
return 0
|
||
}
|
||
|
||
var start = 0,
|
||
end = this.elements.length / 2,
|
||
sliceLength = end - start,
|
||
pivotPoint = Math.floor(sliceLength / 2),
|
||
pivotIndex = this.elements[pivotPoint * 2]
|
||
|
||
while (sliceLength > 1) {
|
||
if (pivotIndex < index) {
|
||
start = pivotPoint
|
||
}
|
||
|
||
if (pivotIndex > index) {
|
||
end = pivotPoint
|
||
}
|
||
|
||
if (pivotIndex == index) {
|
||
break
|
||
}
|
||
|
||
sliceLength = end - start
|
||
pivotPoint = start + Math.floor(sliceLength / 2)
|
||
pivotIndex = this.elements[pivotPoint * 2]
|
||
}
|
||
|
||
if (pivotIndex == index) {
|
||
return pivotPoint * 2
|
||
}
|
||
|
||
if (pivotIndex > index) {
|
||
return pivotPoint * 2
|
||
}
|
||
|
||
if (pivotIndex < index) {
|
||
return (pivotPoint + 1) * 2
|
||
}
|
||
}
|
||
|
||
/**
|
||
* Inserts an element at an index within the vector.
|
||
*
|
||
* Does not allow duplicates, will throw an error if there is already an entry
|
||
* for this index.
|
||
*
|
||
* @param {Number} insertIdx - The index at which the element should be inserted.
|
||
* @param {Number} val - The value to be inserted into the vector.
|
||
*/
|
||
lunr.Vector.prototype.insert = function (insertIdx, val) {
|
||
this.upsert(insertIdx, val, function () {
|
||
throw "duplicate index"
|
||
})
|
||
}
|
||
|
||
/**
|
||
* Inserts or updates an existing index within the vector.
|
||
*
|
||
* @param {Number} insertIdx - The index at which the element should be inserted.
|
||
* @param {Number} val - The value to be inserted into the vector.
|
||
* @param {function} fn - A function that is called for updates, the existing value and the
|
||
* requested value are passed as arguments
|
||
*/
|
||
lunr.Vector.prototype.upsert = function (insertIdx, val, fn) {
|
||
this._magnitude = 0
|
||
var position = this.positionForIndex(insertIdx)
|
||
|
||
if (this.elements[position] == insertIdx) {
|
||
this.elements[position + 1] = fn(this.elements[position + 1], val)
|
||
} else {
|
||
this.elements.splice(position, 0, insertIdx, val)
|
||
}
|
||
}
|
||
|
||
/**
|
||
* Calculates the magnitude of this vector.
|
||
*
|
||
* @returns {Number}
|
||
*/
|
||
lunr.Vector.prototype.magnitude = function () {
|
||
if (this._magnitude) return this._magnitude
|
||
|
||
var sumOfSquares = 0,
|
||
elementsLength = this.elements.length
|
||
|
||
for (var i = 1; i < elementsLength; i += 2) {
|
||
var val = this.elements[i]
|
||
sumOfSquares += val * val
|
||
}
|
||
|
||
return this._magnitude = Math.sqrt(sumOfSquares)
|
||
}
|
||
|
||
/**
|
||
* Calculates the dot product of this vector and another vector.
|
||
*
|
||
* @param {lunr.Vector} otherVector - The vector to compute the dot product with.
|
||
* @returns {Number}
|
||
*/
|
||
lunr.Vector.prototype.dot = function (otherVector) {
|
||
var dotProduct = 0,
|
||
a = this.elements, b = otherVector.elements,
|
||
aLen = a.length, bLen = b.length,
|
||
aVal = 0, bVal = 0,
|
||
i = 0, j = 0
|
||
|
||
while (i < aLen && j < bLen) {
|
||
aVal = a[i], bVal = b[j]
|
||
if (aVal < bVal) {
|
||
i += 2
|
||
} else if (aVal > bVal) {
|
||
j += 2
|
||
} else if (aVal == bVal) {
|
||
dotProduct += a[i + 1] * b[j + 1]
|
||
i += 2
|
||
j += 2
|
||
}
|
||
}
|
||
|
||
return dotProduct
|
||
}
|
||
|
||
/**
|
||
* Calculates the similarity between this vector and another vector.
|
||
*
|
||
* @param {lunr.Vector} otherVector - The other vector to calculate the
|
||
* similarity with.
|
||
* @returns {Number}
|
||
*/
|
||
lunr.Vector.prototype.similarity = function (otherVector) {
|
||
return this.dot(otherVector) / this.magnitude() || 0
|
||
}
|
||
|
||
/**
|
||
* Converts the vector to an array of the elements within the vector.
|
||
*
|
||
* @returns {Number[]}
|
||
*/
|
||
lunr.Vector.prototype.toArray = function () {
|
||
var output = new Array (this.elements.length / 2)
|
||
|
||
for (var i = 1, j = 0; i < this.elements.length; i += 2, j++) {
|
||
output[j] = this.elements[i]
|
||
}
|
||
|
||
return output
|
||
}
|
||
|
||
/**
|
||
* A JSON serializable representation of the vector.
|
||
*
|
||
* @returns {Number[]}
|
||
*/
|
||
lunr.Vector.prototype.toJSON = function () {
|
||
return this.elements
|
||
}
|
||
/* eslint-disable */
|
||
/*!
|
||
* lunr.stemmer
|
||
* Copyright (C) 2020 Oliver Nightingale
|
||
* Includes code from - http://tartarus.org/~martin/PorterStemmer/js.txt
|
||
*/
|
||
|
||
/**
|
||
* lunr.stemmer is an english language stemmer, this is a JavaScript
|
||
* implementation of the PorterStemmer taken from http://tartarus.org/~martin
|
||
*
|
||
* @static
|
||
* @implements {lunr.PipelineFunction}
|
||
* @param {lunr.Token} token - The string to stem
|
||
* @returns {lunr.Token}
|
||
* @see {@link lunr.Pipeline}
|
||
* @function
|
||
*/
|
||
lunr.stemmer = (function(){
|
||
var step2list = {
|
||
"ational" : "ate",
|
||
"tional" : "tion",
|
||
"enci" : "ence",
|
||
"anci" : "ance",
|
||
"izer" : "ize",
|
||
"bli" : "ble",
|
||
"alli" : "al",
|
||
"entli" : "ent",
|
||
"eli" : "e",
|
||
"ousli" : "ous",
|
||
"ization" : "ize",
|
||
"ation" : "ate",
|
||
"ator" : "ate",
|
||
"alism" : "al",
|
||
"iveness" : "ive",
|
||
"fulness" : "ful",
|
||
"ousness" : "ous",
|
||
"aliti" : "al",
|
||
"iviti" : "ive",
|
||
"biliti" : "ble",
|
||
"logi" : "log"
|
||
},
|
||
|
||
step3list = {
|
||
"icate" : "ic",
|
||
"ative" : "",
|
||
"alize" : "al",
|
||
"iciti" : "ic",
|
||
"ical" : "ic",
|
||
"ful" : "",
|
||
"ness" : ""
|
||
},
|
||
|
||
c = "[^aeiou]", // consonant
|
||
v = "[aeiouy]", // vowel
|
||
C = c + "[^aeiouy]*", // consonant sequence
|
||
V = v + "[aeiou]*", // vowel sequence
|
||
|
||
mgr0 = "^(" + C + ")?" + V + C, // [C]VC... is m>0
|
||
meq1 = "^(" + C + ")?" + V + C + "(" + V + ")?$", // [C]VC[V] is m=1
|
||
mgr1 = "^(" + C + ")?" + V + C + V + C, // [C]VCVC... is m>1
|
||
s_v = "^(" + C + ")?" + v; // vowel in stem
|
||
|
||
var re_mgr0 = new RegExp(mgr0);
|
||
var re_mgr1 = new RegExp(mgr1);
|
||
var re_meq1 = new RegExp(meq1);
|
||
var re_s_v = new RegExp(s_v);
|
||
|
||
var re_1a = /^(.+?)(ss|i)es$/;
|
||
var re2_1a = /^(.+?)([^s])s$/;
|
||
var re_1b = /^(.+?)eed$/;
|
||
var re2_1b = /^(.+?)(ed|ing)$/;
|
||
var re_1b_2 = /.$/;
|
||
var re2_1b_2 = /(at|bl|iz)$/;
|
||
var re3_1b_2 = new RegExp("([^aeiouylsz])\\1$");
|
||
var re4_1b_2 = new RegExp("^" + C + v + "[^aeiouwxy]$");
|
||
|
||
var re_1c = /^(.+?[^aeiou])y$/;
|
||
var re_2 = /^(.+?)(ational|tional|enci|anci|izer|bli|alli|entli|eli|ousli|ization|ation|ator|alism|iveness|fulness|ousness|aliti|iviti|biliti|logi)$/;
|
||
|
||
var re_3 = /^(.+?)(icate|ative|alize|iciti|ical|ful|ness)$/;
|
||
|
||
var re_4 = /^(.+?)(al|ance|ence|er|ic|able|ible|ant|ement|ment|ent|ou|ism|ate|iti|ous|ive|ize)$/;
|
||
var re2_4 = /^(.+?)(s|t)(ion)$/;
|
||
|
||
var re_5 = /^(.+?)e$/;
|
||
var re_5_1 = /ll$/;
|
||
var re3_5 = new RegExp("^" + C + v + "[^aeiouwxy]$");
|
||
|
||
var porterStemmer = function porterStemmer(w) {
|
||
var stem,
|
||
suffix,
|
||
firstch,
|
||
re,
|
||
re2,
|
||
re3,
|
||
re4;
|
||
|
||
if (w.length < 3) { return w; }
|
||
|
||
firstch = w.substr(0,1);
|
||
if (firstch == "y") {
|
||
w = firstch.toUpperCase() + w.substr(1);
|
||
}
|
||
|
||
// Step 1a
|
||
re = re_1a
|
||
re2 = re2_1a;
|
||
|
||
if (re.test(w)) { w = w.replace(re,"$1$2"); }
|
||
else if (re2.test(w)) { w = w.replace(re2,"$1$2"); }
|
||
|
||
// Step 1b
|
||
re = re_1b;
|
||
re2 = re2_1b;
|
||
if (re.test(w)) {
|
||
var fp = re.exec(w);
|
||
re = re_mgr0;
|
||
if (re.test(fp[1])) {
|
||
re = re_1b_2;
|
||
w = w.replace(re,"");
|
||
}
|
||
} else if (re2.test(w)) {
|
||
var fp = re2.exec(w);
|
||
stem = fp[1];
|
||
re2 = re_s_v;
|
||
if (re2.test(stem)) {
|
||
w = stem;
|
||
re2 = re2_1b_2;
|
||
re3 = re3_1b_2;
|
||
re4 = re4_1b_2;
|
||
if (re2.test(w)) { w = w + "e"; }
|
||
else if (re3.test(w)) { re = re_1b_2; w = w.replace(re,""); }
|
||
else if (re4.test(w)) { w = w + "e"; }
|
||
}
|
||
}
|
||
|
||
// 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)
|
||
re = re_1c;
|
||
if (re.test(w)) {
|
||
var fp = re.exec(w);
|
||
stem = fp[1];
|
||
w = stem + "i";
|
||
}
|
||
|
||
// Step 2
|
||
re = re_2;
|
||
if (re.test(w)) {
|
||
var fp = re.exec(w);
|
||
stem = fp[1];
|
||
suffix = fp[2];
|
||
re = re_mgr0;
|
||
if (re.test(stem)) {
|
||
w = stem + step2list[suffix];
|
||
}
|
||
}
|
||
|
||
// Step 3
|
||
re = re_3;
|
||
if (re.test(w)) {
|
||
var fp = re.exec(w);
|
||
stem = fp[1];
|
||
suffix = fp[2];
|
||
re = re_mgr0;
|
||
if (re.test(stem)) {
|
||
w = stem + step3list[suffix];
|
||
}
|
||
}
|
||
|
||
// Step 4
|
||
re = re_4;
|
||
re2 = re2_4;
|
||
if (re.test(w)) {
|
||
var fp = re.exec(w);
|
||
stem = fp[1];
|
||
re = re_mgr1;
|
||
if (re.test(stem)) {
|
||
w = stem;
|
||
}
|
||
} else if (re2.test(w)) {
|
||
var fp = re2.exec(w);
|
||
stem = fp[1] + fp[2];
|
||
re2 = re_mgr1;
|
||
if (re2.test(stem)) {
|
||
w = stem;
|
||
}
|
||
}
|
||
|
||
// Step 5
|
||
re = re_5;
|
||
if (re.test(w)) {
|
||
var fp = re.exec(w);
|
||
stem = fp[1];
|
||
re = re_mgr1;
|
||
re2 = re_meq1;
|
||
re3 = re3_5;
|
||
if (re.test(stem) || (re2.test(stem) && !(re3.test(stem)))) {
|
||
w = stem;
|
||
}
|
||
}
|
||
|
||
re = re_5_1;
|
||
re2 = re_mgr1;
|
||
if (re.test(w) && re2.test(w)) {
|
||
re = re_1b_2;
|
||
w = w.replace(re,"");
|
||
}
|
||
|
||
// and turn initial Y back to y
|
||
|
||
if (firstch == "y") {
|
||
w = firstch.toLowerCase() + w.substr(1);
|
||
}
|
||
|
||
return w;
|
||
};
|
||
|
||
return function (token) {
|
||
return token.update(porterStemmer);
|
||
}
|
||
})();
|
||
|
||
lunr.Pipeline.registerFunction(lunr.stemmer, 'stemmer')
|
||
/*!
|
||
* lunr.stopWordFilter
|
||
* Copyright (C) 2020 Oliver Nightingale
|
||
*/
|
||
|
||
/**
|
||
* lunr.generateStopWordFilter builds a stopWordFilter function from the provided
|
||
* list of stop words.
|
||
*
|
||
* The built in lunr.stopWordFilter is built using this generator and can be used
|
||
* to generate custom stopWordFilters for applications or non English languages.
|
||
*
|
||
* @function
|
||
* @param {Array} token The token to pass through the filter
|
||
* @returns {lunr.PipelineFunction}
|
||
* @see lunr.Pipeline
|
||
* @see lunr.stopWordFilter
|
||
*/
|
||
lunr.generateStopWordFilter = function (stopWords) {
|
||
var words = stopWords.reduce(function (memo, stopWord) {
|
||
memo[stopWord] = stopWord
|
||
return memo
|
||
}, {})
|
||
|
||
return function (token) {
|
||
if (token && words[token.toString()] !== token.toString()) return token
|
||
}
|
||
}
|
||
|
||
/**
|
||
* lunr.stopWordFilter is an English language stop word list filter, any words
|
||
* contained in the list will not be passed through the filter.
|
||
*
|
||
* This is intended to be used in the Pipeline. If the token does not pass the
|
||
* filter then undefined will be returned.
|
||
*
|
||
* @function
|
||
* @implements {lunr.PipelineFunction}
|
||
* @params {lunr.Token} token - A token to check for being a stop word.
|
||
* @returns {lunr.Token}
|
||
* @see {@link lunr.Pipeline}
|
||
*/
|
||
lunr.stopWordFilter = lunr.generateStopWordFilter([
|
||
'a',
|
||
'able',
|
||
'about',
|
||
'across',
|
||
'after',
|
||
'all',
|
||
'almost',
|
||
'also',
|
||
'am',
|
||
'among',
|
||
'an',
|
||
'and',
|
||
'any',
|
||
'are',
|
||
'as',
|
||
'at',
|
||
'be',
|
||
'because',
|
||
'been',
|
||
'but',
|
||
'by',
|
||
'can',
|
||
'cannot',
|
||
'could',
|
||
'dear',
|
||
'did',
|
||
'do',
|
||
'does',
|
||
'either',
|
||
'else',
|
||
'ever',
|
||
'every',
|
||
'for',
|
||
'from',
|
||
'get',
|
||
'got',
|
||
'had',
|
||
'has',
|
||
'have',
|
||
'he',
|
||
'her',
|
||
'hers',
|
||
'him',
|
||
'his',
|
||
'how',
|
||
'however',
|
||
'i',
|
||
'if',
|
||
'in',
|
||
'into',
|
||
'is',
|
||
'it',
|
||
'its',
|
||
'just',
|
||
'least',
|
||
'let',
|
||
'like',
|
||
'likely',
|
||
'may',
|
||
'me',
|
||
'might',
|
||
'most',
|
||
'must',
|
||
'my',
|
||
'neither',
|
||
'no',
|
||
'nor',
|
||
'not',
|
||
'of',
|
||
'off',
|
||
'often',
|
||
'on',
|
||
'only',
|
||
'or',
|
||
'other',
|
||
'our',
|
||
'own',
|
||
'rather',
|
||
'said',
|
||
'say',
|
||
'says',
|
||
'she',
|
||
'should',
|
||
'since',
|
||
'so',
|
||
'some',
|
||
'than',
|
||
'that',
|
||
'the',
|
||
'their',
|
||
'them',
|
||
'then',
|
||
'there',
|
||
'these',
|
||
'they',
|
||
'this',
|
||
'tis',
|
||
'to',
|
||
'too',
|
||
'twas',
|
||
'us',
|
||
'wants',
|
||
'was',
|
||
'we',
|
||
'were',
|
||
'what',
|
||
'when',
|
||
'where',
|
||
'which',
|
||
'while',
|
||
'who',
|
||
'whom',
|
||
'why',
|
||
'will',
|
||
'with',
|
||
'would',
|
||
'yet',
|
||
'you',
|
||
'your'
|
||
])
|
||
|
||
lunr.Pipeline.registerFunction(lunr.stopWordFilter, 'stopWordFilter')
|
||
/*!
|
||
* lunr.trimmer
|
||
* Copyright (C) 2020 Oliver Nightingale
|
||
*/
|
||
|
||
/**
|
||
* lunr.trimmer is a pipeline function for trimming non word
|
||
* characters from the beginning and end of tokens before they
|
||
* enter the index.
|
||
*
|
||
* This implementation may not work correctly for non latin
|
||
* characters and should either be removed or adapted for use
|
||
* with languages with non-latin characters.
|
||
*
|
||
* @static
|
||
* @implements {lunr.PipelineFunction}
|
||
* @param {lunr.Token} token The token to pass through the filter
|
||
* @returns {lunr.Token}
|
||
* @see lunr.Pipeline
|
||
*/
|
||
lunr.trimmer = function (token) {
|
||
return token.update(function (s) {
|
||
return s.replace(/^\W+/, '').replace(/\W+$/, '')
|
||
})
|
||
}
|
||
|
||
lunr.Pipeline.registerFunction(lunr.trimmer, 'trimmer')
|
||
/*!
|
||
* lunr.TokenSet
|
||
* Copyright (C) 2020 Oliver Nightingale
|
||
*/
|
||
|
||
/**
|
||
* A token set is used to store the unique list of all tokens
|
||
* within an index. Token sets are also used to represent an
|
||
* incoming query to the index, this query token set and index
|
||
* token set are then intersected to find which tokens to look
|
||
* up in the inverted index.
|
||
*
|
||
* A token set can hold multiple tokens, as in the case of the
|
||
* index token set, or it can hold a single token as in the
|
||
* case of a simple query token set.
|
||
*
|
||
* Additionally token sets are used to perform wildcard matching.
|
||
* Leading, contained and trailing wildcards are supported, and
|
||
* from this edit distance matching can also be provided.
|
||
*
|
||
* Token sets are implemented as a minimal finite state automata,
|
||
* where both common prefixes and suffixes are shared between tokens.
|
||
* This helps to reduce the space used for storing the token set.
|
||
*
|
||
* @constructor
|
||
*/
|
||
lunr.TokenSet = function () {
|
||
this.final = false
|
||
this.edges = {}
|
||
this.id = lunr.TokenSet._nextId
|
||
lunr.TokenSet._nextId += 1
|
||
}
|
||
|
||
/**
|
||
* Keeps track of the next, auto increment, identifier to assign
|
||
* to a new tokenSet.
|
||
*
|
||
* TokenSets require a unique identifier to be correctly minimised.
|
||
*
|
||
* @private
|
||
*/
|
||
lunr.TokenSet._nextId = 1
|
||
|
||
/**
|
||
* Creates a TokenSet instance from the given sorted array of words.
|
||
*
|
||
* @param {String[]} arr - A sorted array of strings to create the set from.
|
||
* @returns {lunr.TokenSet}
|
||
* @throws Will throw an error if the input array is not sorted.
|
||
*/
|
||
lunr.TokenSet.fromArray = function (arr) {
|
||
var builder = new lunr.TokenSet.Builder
|
||
|
||
for (var i = 0, len = arr.length; i < len; i++) {
|
||
builder.insert(arr[i])
|
||
}
|
||
|
||
builder.finish()
|
||
return builder.root
|
||
}
|
||
|
||
/**
|
||
* Creates a token set from a query clause.
|
||
*
|
||
* @private
|
||
* @param {Object} clause - A single clause from lunr.Query.
|
||
* @param {string} clause.term - The query clause term.
|
||
* @param {number} [clause.editDistance] - The optional edit distance for the term.
|
||
* @returns {lunr.TokenSet}
|
||
*/
|
||
lunr.TokenSet.fromClause = function (clause) {
|
||
if ('editDistance' in clause) {
|
||
return lunr.TokenSet.fromFuzzyString(clause.term, clause.editDistance)
|
||
} else {
|
||
return lunr.TokenSet.fromString(clause.term)
|
||
}
|
||
}
|
||
|
||
/**
|
||
* Creates a token set representing a single string with a specified
|
||
* edit distance.
|
||
*
|
||
* Insertions, deletions, substitutions and transpositions are each
|
||
* treated as an edit distance of 1.
|
||
*
|
||
* Increasing the allowed edit distance will have a dramatic impact
|
||
* on the performance of both creating and intersecting these TokenSets.
|
||
* It is advised to keep the edit distance less than 3.
|
||
*
|
||
* @param {string} str - The string to create the token set from.
|
||
* @param {number} editDistance - The allowed edit distance to match.
|
||
* @returns {lunr.Vector}
|
||
*/
|
||
lunr.TokenSet.fromFuzzyString = function (str, editDistance) {
|
||
var root = new lunr.TokenSet
|
||
|
||
var stack = [{
|
||
node: root,
|
||
editsRemaining: editDistance,
|
||
str: str
|
||
}]
|
||
|
||
while (stack.length) {
|
||
var frame = stack.pop()
|
||
|
||
// no edit
|
||
if (frame.str.length > 0) {
|
||
var char = frame.str.charAt(0),
|
||
noEditNode
|
||
|
||
if (char in frame.node.edges) {
|
||
noEditNode = frame.node.edges[char]
|
||
} else {
|
||
noEditNode = new lunr.TokenSet
|
||
frame.node.edges[char] = noEditNode
|
||
}
|
||
|
||
if (frame.str.length == 1) {
|
||
noEditNode.final = true
|
||
}
|
||
|
||
stack.push({
|
||
node: noEditNode,
|
||
editsRemaining: frame.editsRemaining,
|
||
str: frame.str.slice(1)
|
||
})
|
||
}
|
||
|
||
if (frame.editsRemaining == 0) {
|
||
continue
|
||
}
|
||
|
||
// insertion
|
||
if ("*" in frame.node.edges) {
|
||
var insertionNode = frame.node.edges["*"]
|
||
} else {
|
||
var insertionNode = new lunr.TokenSet
|
||
frame.node.edges["*"] = insertionNode
|
||
}
|
||
|
||
if (frame.str.length == 0) {
|
||
insertionNode.final = true
|
||
}
|
||
|
||
stack.push({
|
||
node: insertionNode,
|
||
editsRemaining: frame.editsRemaining - 1,
|
||
str: frame.str
|
||
})
|
||
|
||
// deletion
|
||
// can only do a deletion if we have enough edits remaining
|
||
// and if there are characters left to delete in the string
|
||
if (frame.str.length > 1) {
|
||
stack.push({
|
||
node: frame.node,
|
||
editsRemaining: frame.editsRemaining - 1,
|
||
str: frame.str.slice(1)
|
||
})
|
||
}
|
||
|
||
// deletion
|
||
// just removing the last character from the str
|
||
if (frame.str.length == 1) {
|
||
frame.node.final = true
|
||
}
|
||
|
||
// substitution
|
||
// can only do a substitution if we have enough edits remaining
|
||
// and if there are characters left to substitute
|
||
if (frame.str.length >= 1) {
|
||
if ("*" in frame.node.edges) {
|
||
var substitutionNode = frame.node.edges["*"]
|
||
} else {
|
||
var substitutionNode = new lunr.TokenSet
|
||
frame.node.edges["*"] = substitutionNode
|
||
}
|
||
|
||
if (frame.str.length == 1) {
|
||
substitutionNode.final = true
|
||
}
|
||
|
||
stack.push({
|
||
node: substitutionNode,
|
||
editsRemaining: frame.editsRemaining - 1,
|
||
str: frame.str.slice(1)
|
||
})
|
||
}
|
||
|
||
// transposition
|
||
// can only do a transposition if there are edits remaining
|
||
// and there are enough characters to transpose
|
||
if (frame.str.length > 1) {
|
||
var charA = frame.str.charAt(0),
|
||
charB = frame.str.charAt(1),
|
||
transposeNode
|
||
|
||
if (charB in frame.node.edges) {
|
||
transposeNode = frame.node.edges[charB]
|
||
} else {
|
||
transposeNode = new lunr.TokenSet
|
||
frame.node.edges[charB] = transposeNode
|
||
}
|
||
|
||
if (frame.str.length == 1) {
|
||
transposeNode.final = true
|
||
}
|
||
|
||
stack.push({
|
||
node: transposeNode,
|
||
editsRemaining: frame.editsRemaining - 1,
|
||
str: charA + frame.str.slice(2)
|
||
})
|
||
}
|
||
}
|
||
|
||
return root
|
||
}
|
||
|
||
/**
|
||
* Creates a TokenSet from a string.
|
||
*
|
||
* The string may contain one or more wildcard characters (*)
|
||
* that will allow wildcard matching when intersecting with
|
||
* another TokenSet.
|
||
*
|
||
* @param {string} str - The string to create a TokenSet from.
|
||
* @returns {lunr.TokenSet}
|
||
*/
|
||
lunr.TokenSet.fromString = function (str) {
|
||
var node = new lunr.TokenSet,
|
||
root = node
|
||
|
||
/*
|
||
* Iterates through all characters within the passed string
|
||
* appending a node for each character.
|
||
*
|
||
* When a wildcard character is found then a self
|
||
* referencing edge is introduced to continually match
|
||
* any number of any characters.
|
||
*/
|
||
for (var i = 0, len = str.length; i < len; i++) {
|
||
var char = str[i],
|
||
final = (i == len - 1)
|
||
|
||
if (char == "*") {
|
||
node.edges[char] = node
|
||
node.final = final
|
||
|
||
} else {
|
||
var next = new lunr.TokenSet
|
||
next.final = final
|
||
|
||
node.edges[char] = next
|
||
node = next
|
||
}
|
||
}
|
||
|
||
return root
|
||
}
|
||
|
||
/**
|
||
* Converts this TokenSet into an array of strings
|
||
* contained within the TokenSet.
|
||
*
|
||
* This is not intended to be used on a TokenSet that
|
||
* contains wildcards, in these cases the results are
|
||
* undefined and are likely to cause an infinite loop.
|
||
*
|
||
* @returns {string[]}
|
||
*/
|
||
lunr.TokenSet.prototype.toArray = function () {
|
||
var words = []
|
||
|
||
var stack = [{
|
||
prefix: "",
|
||
node: this
|
||
}]
|
||
|
||
while (stack.length) {
|
||
var frame = stack.pop(),
|
||
edges = Object.keys(frame.node.edges),
|
||
len = edges.length
|
||
|
||
if (frame.node.final) {
|
||
/* In Safari, at this point the prefix is sometimes corrupted, see:
|
||
* https://github.com/olivernn/lunr.js/issues/279 Calling any
|
||
* String.prototype method forces Safari to "cast" this string to what
|
||
* it's supposed to be, fixing the bug. */
|
||
frame.prefix.charAt(0)
|
||
words.push(frame.prefix)
|
||
}
|
||
|
||
for (var i = 0; i < len; i++) {
|
||
var edge = edges[i]
|
||
|
||
stack.push({
|
||
prefix: frame.prefix.concat(edge),
|
||
node: frame.node.edges[edge]
|
||
})
|
||
}
|
||
}
|
||
|
||
return words
|
||
}
|
||
|
||
/**
|
||
* Generates a string representation of a TokenSet.
|
||
*
|
||
* This is intended to allow TokenSets to be used as keys
|
||
* in objects, largely to aid the construction and minimisation
|
||
* of a TokenSet. As such it is not designed to be a human
|
||
* friendly representation of the TokenSet.
|
||
*
|
||
* @returns {string}
|
||
*/
|
||
lunr.TokenSet.prototype.toString = function () {
|
||
// NOTE: Using Object.keys here as this.edges is very likely
|
||
// to enter 'hash-mode' with many keys being added
|
||
//
|
||
// avoiding a for-in loop here as it leads to the function
|
||
// being de-optimised (at least in V8). From some simple
|
||
// benchmarks the performance is comparable, but allowing
|
||
// V8 to optimize may mean easy performance wins in the future.
|
||
|
||
if (this._str) {
|
||
return this._str
|
||
}
|
||
|
||
var str = this.final ? '1' : '0',
|
||
labels = Object.keys(this.edges).sort(),
|
||
len = labels.length
|
||
|
||
for (var i = 0; i < len; i++) {
|
||
var label = labels[i],
|
||
node = this.edges[label]
|
||
|
||
str = str + label + node.id
|
||
}
|
||
|
||
return str
|
||
}
|
||
|
||
/**
|
||
* Returns a new TokenSet that is the intersection of
|
||
* this TokenSet and the passed TokenSet.
|
||
*
|
||
* This intersection will take into account any wildcards
|
||
* contained within the TokenSet.
|
||
*
|
||
* @param {lunr.TokenSet} b - An other TokenSet to intersect with.
|
||
* @returns {lunr.TokenSet}
|
||
*/
|
||
lunr.TokenSet.prototype.intersect = function (b) {
|
||
var output = new lunr.TokenSet,
|
||
frame = undefined
|
||
|
||
var stack = [{
|
||
qNode: b,
|
||
output: output,
|
||
node: this
|
||
}]
|
||
|
||
while (stack.length) {
|
||
frame = stack.pop()
|
||
|
||
// NOTE: As with the #toString method, we are using
|
||
// Object.keys and a for loop instead of a for-in loop
|
||
// as both of these objects enter 'hash' mode, causing
|
||
// the function to be de-optimised in V8
|
||
var qEdges = Object.keys(frame.qNode.edges),
|
||
qLen = qEdges.length,
|
||
nEdges = Object.keys(frame.node.edges),
|
||
nLen = nEdges.length
|
||
|
||
for (var q = 0; q < qLen; q++) {
|
||
var qEdge = qEdges[q]
|
||
|
||
for (var n = 0; n < nLen; n++) {
|
||
var nEdge = nEdges[n]
|
||
|
||
if (nEdge == qEdge || qEdge == '*') {
|
||
var node = frame.node.edges[nEdge],
|
||
qNode = frame.qNode.edges[qEdge],
|
||
final = node.final && qNode.final,
|
||
next = undefined
|
||
|
||
if (nEdge in frame.output.edges) {
|
||
// an edge already exists for this character
|
||
// no need to create a new node, just set the finality
|
||
// bit unless this node is already final
|
||
next = frame.output.edges[nEdge]
|
||
next.final = next.final || final
|
||
|
||
} else {
|
||
// no edge exists yet, must create one
|
||
// set the finality bit and insert it
|
||
// into the output
|
||
next = new lunr.TokenSet
|
||
next.final = final
|
||
frame.output.edges[nEdge] = next
|
||
}
|
||
|
||
stack.push({
|
||
qNode: qNode,
|
||
output: next,
|
||
node: node
|
||
})
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
return output
|
||
}
|
||
lunr.TokenSet.Builder = function () {
|
||
this.previousWord = ""
|
||
this.root = new lunr.TokenSet
|
||
this.uncheckedNodes = []
|
||
this.minimizedNodes = {}
|
||
}
|
||
|
||
lunr.TokenSet.Builder.prototype.insert = function (word) {
|
||
var node,
|
||
commonPrefix = 0
|
||
|
||
if (word < this.previousWord) {
|
||
throw new Error ("Out of order word insertion")
|
||
}
|
||
|
||
for (var i = 0; i < word.length && i < this.previousWord.length; i++) {
|
||
if (word[i] != this.previousWord[i]) break
|
||
commonPrefix++
|
||
}
|
||
|
||
this.minimize(commonPrefix)
|
||
|
||
if (this.uncheckedNodes.length == 0) {
|
||
node = this.root
|
||
} else {
|
||
node = this.uncheckedNodes[this.uncheckedNodes.length - 1].child
|
||
}
|
||
|
||
for (var i = commonPrefix; i < word.length; i++) {
|
||
var nextNode = new lunr.TokenSet,
|
||
char = word[i]
|
||
|
||
node.edges[char] = nextNode
|
||
|
||
this.uncheckedNodes.push({
|
||
parent: node,
|
||
char: char,
|
||
child: nextNode
|
||
})
|
||
|
||
node = nextNode
|
||
}
|
||
|
||
node.final = true
|
||
this.previousWord = word
|
||
}
|
||
|
||
lunr.TokenSet.Builder.prototype.finish = function () {
|
||
this.minimize(0)
|
||
}
|
||
|
||
lunr.TokenSet.Builder.prototype.minimize = function (downTo) {
|
||
for (var i = this.uncheckedNodes.length - 1; i >= downTo; i--) {
|
||
var node = this.uncheckedNodes[i],
|
||
childKey = node.child.toString()
|
||
|
||
if (childKey in this.minimizedNodes) {
|
||
node.parent.edges[node.char] = this.minimizedNodes[childKey]
|
||
} else {
|
||
// Cache the key for this node since
|
||
// we know it can't change anymore
|
||
node.child._str = childKey
|
||
|
||
this.minimizedNodes[childKey] = node.child
|
||
}
|
||
|
||
this.uncheckedNodes.pop()
|
||
}
|
||
}
|
||
/*!
|
||
* lunr.Index
|
||
* Copyright (C) 2020 Oliver Nightingale
|
||
*/
|
||
|
||
/**
|
||
* An index contains the built index of all documents and provides a query interface
|
||
* to the index.
|
||
*
|
||
* Usually instances of lunr.Index will not be created using this constructor, instead
|
||
* lunr.Builder should be used to construct new indexes, or lunr.Index.load should be
|
||
* used to load previously built and serialized indexes.
|
||
*
|
||
* @constructor
|
||
* @param {Object} attrs - The attributes of the built search index.
|
||
* @param {Object} attrs.invertedIndex - An index of term/field to document reference.
|
||
* @param {Object<string, lunr.Vector>} attrs.fieldVectors - Field vectors
|
||
* @param {lunr.TokenSet} attrs.tokenSet - An set of all corpus tokens.
|
||
* @param {string[]} attrs.fields - The names of indexed document fields.
|
||
* @param {lunr.Pipeline} attrs.pipeline - The pipeline to use for search terms.
|
||
*/
|
||
lunr.Index = function (attrs) {
|
||
this.invertedIndex = attrs.invertedIndex
|
||
this.fieldVectors = attrs.fieldVectors
|
||
this.tokenSet = attrs.tokenSet
|
||
this.fields = attrs.fields
|
||
this.pipeline = attrs.pipeline
|
||
}
|
||
|
||
/**
|
||
* A result contains details of a document matching a search query.
|
||
* @typedef {Object} lunr.Index~Result
|
||
* @property {string} ref - The reference of the document this result represents.
|
||
* @property {number} score - A number between 0 and 1 representing how similar this document is to the query.
|
||
* @property {lunr.MatchData} matchData - Contains metadata about this match including which term(s) caused the match.
|
||
*/
|
||
|
||
/**
|
||
* Although lunr provides the ability to create queries using lunr.Query, it also provides a simple
|
||
* query language which itself is parsed into an instance of lunr.Query.
|
||
*
|
||
* For programmatically building queries it is advised to directly use lunr.Query, the query language
|
||
* is best used for human entered text rather than program generated text.
|
||
*
|
||
* At its simplest queries can just be a single term, e.g. `hello`, multiple terms are also supported
|
||
* and will be combined with OR, e.g `hello world` will match documents that contain either 'hello'
|
||
* or 'world', though those that contain both will rank higher in the results.
|
||
*
|
||
* Wildcards can be included in terms to match one or more unspecified characters, these wildcards can
|
||
* be inserted anywhere within the term, and more than one wildcard can exist in a single term. Adding
|
||
* wildcards will increase the number of documents that will be found but can also have a negative
|
||
* impact on query performance, especially with wildcards at the beginning of a term.
|
||
*
|
||
* Terms can be restricted to specific fields, e.g. `title:hello`, only documents with the term
|
||
* hello in the title field will match this query. Using a field not present in the index will lead
|
||
* to an error being thrown.
|
||
*
|
||
* Modifiers can also be added to terms, lunr supports edit distance and boost modifiers on terms. A term
|
||
* boost will make documents matching that term score higher, e.g. `foo^5`. Edit distance is also supported
|
||
* to provide fuzzy matching, e.g. 'hello~2' will match documents with hello with an edit distance of 2.
|
||
* Avoid large values for edit distance to improve query performance.
|
||
*
|
||
* Each term also supports a presence modifier. By default a term's presence in document is optional, however
|
||
* this can be changed to either required or prohibited. For a term's presence to be required in a document the
|
||
* term should be prefixed with a '+', e.g. `+foo bar` is a search for documents that must contain 'foo' and
|
||
* optionally contain 'bar'. Conversely a leading '-' sets the terms presence to prohibited, i.e. it must not
|
||
* appear in a document, e.g. `-foo bar` is a search for documents that do not contain 'foo' but may contain 'bar'.
|
||
*
|
||
* To escape special characters the backslash character '\' can be used, this allows searches to include
|
||
* characters that would normally be considered modifiers, e.g. `foo\~2` will search for a term "foo~2" instead
|
||
* of attempting to apply a boost of 2 to the search term "foo".
|
||
*
|
||
* @typedef {string} lunr.Index~QueryString
|
||
* @example <caption>Simple single term query</caption>
|
||
* hello
|
||
* @example <caption>Multiple term query</caption>
|
||
* hello world
|
||
* @example <caption>term scoped to a field</caption>
|
||
* title:hello
|
||
* @example <caption>term with a boost of 10</caption>
|
||
* hello^10
|
||
* @example <caption>term with an edit distance of 2</caption>
|
||
* hello~2
|
||
* @example <caption>terms with presence modifiers</caption>
|
||
* -foo +bar baz
|
||
*/
|
||
|
||
/**
|
||
* Performs a search against the index using lunr query syntax.
|
||
*
|
||
* Results will be returned sorted by their score, the most relevant results
|
||
* will be returned first. For details on how the score is calculated, please see
|
||
* the {@link https://lunrjs.com/guides/searching.html#scoring|guide}.
|
||
*
|
||
* For more programmatic querying use lunr.Index#query.
|
||
*
|
||
* @param {lunr.Index~QueryString} queryString - A string containing a lunr query.
|
||
* @throws {lunr.QueryParseError} If the passed query string cannot be parsed.
|
||
* @returns {lunr.Index~Result[]}
|
||
*/
|
||
lunr.Index.prototype.search = function (queryString) {
|
||
return this.query(function (query) {
|
||
var parser = new lunr.QueryParser(queryString, query)
|
||
parser.parse()
|
||
})
|
||
}
|
||
|
||
/**
|
||
* A query builder callback provides a query object to be used to express
|
||
* the query to perform on the index.
|
||
*
|
||
* @callback lunr.Index~queryBuilder
|
||
* @param {lunr.Query} query - The query object to build up.
|
||
* @this lunr.Query
|
||
*/
|
||
|
||
/**
|
||
* Performs a query against the index using the yielded lunr.Query object.
|
||
*
|
||
* If performing programmatic queries against the index, this method is preferred
|
||
* over lunr.Index#search so as to avoid the additional query parsing overhead.
|
||
*
|
||
* A query object is yielded to the supplied function which should be used to
|
||
* express the query to be run against the index.
|
||
*
|
||
* Note that although this function takes a callback parameter it is _not_ an
|
||
* asynchronous operation, the callback is just yielded a query object to be
|
||
* customized.
|
||
*
|
||
* @param {lunr.Index~queryBuilder} fn - A function that is used to build the query.
|
||
* @returns {lunr.Index~Result[]}
|
||
*/
|
||
lunr.Index.prototype.query = function (fn) {
|
||
// for each query clause
|
||
// * process terms
|
||
// * expand terms from token set
|
||
// * find matching documents and metadata
|
||
// * get document vectors
|
||
// * score documents
|
||
|
||
var query = new lunr.Query(this.fields),
|
||
matchingFields = Object.create(null),
|
||
queryVectors = Object.create(null),
|
||
termFieldCache = Object.create(null),
|
||
requiredMatches = Object.create(null),
|
||
prohibitedMatches = Object.create(null)
|
||
|
||
/*
|
||
* To support field level boosts a query vector is created per
|
||
* field. An empty vector is eagerly created to support negated
|
||
* queries.
|
||
*/
|
||
for (var i = 0; i < this.fields.length; i++) {
|
||
queryVectors[this.fields[i]] = new lunr.Vector
|
||
}
|
||
|
||
fn.call(query, query)
|
||
|
||
for (var i = 0; i < query.clauses.length; i++) {
|
||
/*
|
||
* Unless the pipeline has been disabled for this term, which is
|
||
* the case for terms with wildcards, we need to pass the clause
|
||
* term through the search pipeline. A pipeline returns an array
|
||
* of processed terms. Pipeline functions may expand the passed
|
||
* term, which means we may end up performing multiple index lookups
|
||
* for a single query term.
|
||
*/
|
||
var clause = query.clauses[i],
|
||
terms = null,
|
||
clauseMatches = lunr.Set.empty
|
||
|
||
if (clause.usePipeline) {
|
||
terms = this.pipeline.runString(clause.term, {
|
||
fields: clause.fields
|
||
})
|
||
} else {
|
||
terms = [clause.term]
|
||
}
|
||
|
||
for (var m = 0; m < terms.length; m++) {
|
||
var term = terms[m]
|
||
|
||
/*
|
||
* Each term returned from the pipeline needs to use the same query
|
||
* clause object, e.g. the same boost and or edit distance. The
|
||
* simplest way to do this is to re-use the clause object but mutate
|
||
* its term property.
|
||
*/
|
||
clause.term = term
|
||
|
||
/*
|
||
* From the term in the clause we create a token set which will then
|
||
* be used to intersect the indexes token set to get a list of terms
|
||
* to lookup in the inverted index
|
||
*/
|
||
var termTokenSet = lunr.TokenSet.fromClause(clause),
|
||
expandedTerms = this.tokenSet.intersect(termTokenSet).toArray()
|
||
|
||
/*
|
||
* If a term marked as required does not exist in the tokenSet it is
|
||
* impossible for the search to return any matches. We set all the field
|
||
* scoped required matches set to empty and stop examining any further
|
||
* clauses.
|
||
*/
|
||
if (expandedTerms.length === 0 && clause.presence === lunr.Query.presence.REQUIRED) {
|
||
for (var k = 0; k < clause.fields.length; k++) {
|
||
var field = clause.fields[k]
|
||
requiredMatches[field] = lunr.Set.empty
|
||
}
|
||
|
||
break
|
||
}
|
||
|
||
for (var j = 0; j < expandedTerms.length; j++) {
|
||
/*
|
||
* For each term get the posting and termIndex, this is required for
|
||
* building the query vector.
|
||
*/
|
||
var expandedTerm = expandedTerms[j],
|
||
posting = this.invertedIndex[expandedTerm],
|
||
termIndex = posting._index
|
||
|
||
for (var k = 0; k < clause.fields.length; k++) {
|
||
/*
|
||
* For each field that this query term is scoped by (by default
|
||
* all fields are in scope) we need to get all the document refs
|
||
* that have this term in that field.
|
||
*
|
||
* The posting is the entry in the invertedIndex for the matching
|
||
* term from above.
|
||
*/
|
||
var field = clause.fields[k],
|
||
fieldPosting = posting[field],
|
||
matchingDocumentRefs = Object.keys(fieldPosting),
|
||
termField = expandedTerm + "/" + field,
|
||
matchingDocumentsSet = new lunr.Set(matchingDocumentRefs)
|
||
|
||
/*
|
||
* if the presence of this term is required ensure that the matching
|
||
* documents are added to the set of required matches for this clause.
|
||
*
|
||
*/
|
||
if (clause.presence == lunr.Query.presence.REQUIRED) {
|
||
clauseMatches = clauseMatches.union(matchingDocumentsSet)
|
||
|
||
if (requiredMatches[field] === undefined) {
|
||
requiredMatches[field] = lunr.Set.complete
|
||
}
|
||
}
|
||
|
||
/*
|
||
* if the presence of this term is prohibited ensure that the matching
|
||
* documents are added to the set of prohibited matches for this field,
|
||
* creating that set if it does not yet exist.
|
||
*/
|
||
if (clause.presence == lunr.Query.presence.PROHIBITED) {
|
||
if (prohibitedMatches[field] === undefined) {
|
||
prohibitedMatches[field] = lunr.Set.empty
|
||
}
|
||
|
||
prohibitedMatches[field] = prohibitedMatches[field].union(matchingDocumentsSet)
|
||
|
||
/*
|
||
* Prohibited matches should not be part of the query vector used for
|
||
* similarity scoring and no metadata should be extracted so we continue
|
||
* to the next field
|
||
*/
|
||
continue
|
||
}
|
||
|
||
/*
|
||
* The query field vector is populated using the termIndex found for
|
||
* the term and a unit value with the appropriate boost applied.
|
||
* Using upsert because there could already be an entry in the vector
|
||
* for the term we are working with. In that case we just add the scores
|
||
* together.
|
||
*/
|
||
queryVectors[field].upsert(termIndex, clause.boost, function (a, b) { return a + b })
|
||
|
||
/**
|
||
* If we've already seen this term, field combo then we've already collected
|
||
* the matching documents and metadata, no need to go through all that again
|
||
*/
|
||
if (termFieldCache[termField]) {
|
||
continue
|
||
}
|
||
|
||
for (var l = 0; l < matchingDocumentRefs.length; l++) {
|
||
/*
|
||
* All metadata for this term/field/document triple
|
||
* are then extracted and collected into an instance
|
||
* of lunr.MatchData ready to be returned in the query
|
||
* results
|
||
*/
|
||
var matchingDocumentRef = matchingDocumentRefs[l],
|
||
matchingFieldRef = new lunr.FieldRef (matchingDocumentRef, field),
|
||
metadata = fieldPosting[matchingDocumentRef],
|
||
fieldMatch
|
||
|
||
if ((fieldMatch = matchingFields[matchingFieldRef]) === undefined) {
|
||
matchingFields[matchingFieldRef] = new lunr.MatchData (expandedTerm, field, metadata)
|
||
} else {
|
||
fieldMatch.add(expandedTerm, field, metadata)
|
||
}
|
||
|
||
}
|
||
|
||
termFieldCache[termField] = true
|
||
}
|
||
}
|
||
}
|
||
|
||
/**
|
||
* If the presence was required we need to update the requiredMatches field sets.
|
||
* We do this after all fields for the term have collected their matches because
|
||
* the clause terms presence is required in _any_ of the fields not _all_ of the
|
||
* fields.
|
||
*/
|
||
if (clause.presence === lunr.Query.presence.REQUIRED) {
|
||
for (var k = 0; k < clause.fields.length; k++) {
|
||
var field = clause.fields[k]
|
||
requiredMatches[field] = requiredMatches[field].intersect(clauseMatches)
|
||
}
|
||
}
|
||
}
|
||
|
||
/**
|
||
* Need to combine the field scoped required and prohibited
|
||
* matching documents into a global set of required and prohibited
|
||
* matches
|
||
*/
|
||
var allRequiredMatches = lunr.Set.complete,
|
||
allProhibitedMatches = lunr.Set.empty
|
||
|
||
for (var i = 0; i < this.fields.length; i++) {
|
||
var field = this.fields[i]
|
||
|
||
if (requiredMatches[field]) {
|
||
allRequiredMatches = allRequiredMatches.intersect(requiredMatches[field])
|
||
}
|
||
|
||
if (prohibitedMatches[field]) {
|
||
allProhibitedMatches = allProhibitedMatches.union(prohibitedMatches[field])
|
||
}
|
||
}
|
||
|
||
var matchingFieldRefs = Object.keys(matchingFields),
|
||
results = [],
|
||
matches = Object.create(null)
|
||
|
||
/*
|
||
* If the query is negated (contains only prohibited terms)
|
||
* we need to get _all_ fieldRefs currently existing in the
|
||
* index. This is only done when we know that the query is
|
||
* entirely prohibited terms to avoid any cost of getting all
|
||
* fieldRefs unnecessarily.
|
||
*
|
||
* Additionally, blank MatchData must be created to correctly
|
||
* populate the results.
|
||
*/
|
||
if (query.isNegated()) {
|
||
matchingFieldRefs = Object.keys(this.fieldVectors)
|
||
|
||
for (var i = 0; i < matchingFieldRefs.length; i++) {
|
||
var matchingFieldRef = matchingFieldRefs[i]
|
||
var fieldRef = lunr.FieldRef.fromString(matchingFieldRef)
|
||
matchingFields[matchingFieldRef] = new lunr.MatchData
|
||
}
|
||
}
|
||
|
||
for (var i = 0; i < matchingFieldRefs.length; i++) {
|
||
/*
|
||
* Currently we have document fields that match the query, but we
|
||
* need to return documents. The matchData and scores are combined
|
||
* from multiple fields belonging to the same document.
|
||
*
|
||
* Scores are calculated by field, using the query vectors created
|
||
* above, and combined into a final document score using addition.
|
||
*/
|
||
var fieldRef = lunr.FieldRef.fromString(matchingFieldRefs[i]),
|
||
docRef = fieldRef.docRef
|
||
|
||
if (!allRequiredMatches.contains(docRef)) {
|
||
continue
|
||
}
|
||
|
||
if (allProhibitedMatches.contains(docRef)) {
|
||
continue
|
||
}
|
||
|
||
var fieldVector = this.fieldVectors[fieldRef],
|
||
score = queryVectors[fieldRef.fieldName].similarity(fieldVector),
|
||
docMatch
|
||
|
||
if ((docMatch = matches[docRef]) !== undefined) {
|
||
docMatch.score += score
|
||
docMatch.matchData.combine(matchingFields[fieldRef])
|
||
} else {
|
||
var match = {
|
||
ref: docRef,
|
||
score: score,
|
||
matchData: matchingFields[fieldRef]
|
||
}
|
||
matches[docRef] = match
|
||
results.push(match)
|
||
}
|
||
}
|
||
|
||
/*
|
||
* Sort the results objects by score, highest first.
|
||
*/
|
||
return results.sort(function (a, b) {
|
||
return b.score - a.score
|
||
})
|
||
}
|
||
|
||
/**
|
||
* Prepares the index for JSON serialization.
|
||
*
|
||
* The schema for this JSON blob will be described in a
|
||
* separate JSON schema file.
|
||
*
|
||
* @returns {Object}
|
||
*/
|
||
lunr.Index.prototype.toJSON = function () {
|
||
var invertedIndex = Object.keys(this.invertedIndex)
|
||
.sort()
|
||
.map(function (term) {
|
||
return [term, this.invertedIndex[term]]
|
||
}, this)
|
||
|
||
var fieldVectors = Object.keys(this.fieldVectors)
|
||
.map(function (ref) {
|
||
return [ref, this.fieldVectors[ref].toJSON()]
|
||
}, this)
|
||
|
||
return {
|
||
version: lunr.version,
|
||
fields: this.fields,
|
||
fieldVectors: fieldVectors,
|
||
invertedIndex: invertedIndex,
|
||
pipeline: this.pipeline.toJSON()
|
||
}
|
||
}
|
||
|
||
/**
|
||
* Loads a previously serialized lunr.Index
|
||
*
|
||
* @param {Object} serializedIndex - A previously serialized lunr.Index
|
||
* @returns {lunr.Index}
|
||
*/
|
||
lunr.Index.load = function (serializedIndex) {
|
||
var attrs = {},
|
||
fieldVectors = {},
|
||
serializedVectors = serializedIndex.fieldVectors,
|
||
invertedIndex = Object.create(null),
|
||
serializedInvertedIndex = serializedIndex.invertedIndex,
|
||
tokenSetBuilder = new lunr.TokenSet.Builder,
|
||
pipeline = lunr.Pipeline.load(serializedIndex.pipeline)
|
||
|
||
if (serializedIndex.version != lunr.version) {
|
||
lunr.utils.warn("Version mismatch when loading serialised index. Current version of lunr '" + lunr.version + "' does not match serialized index '" + serializedIndex.version + "'")
|
||
}
|
||
|
||
for (var i = 0; i < serializedVectors.length; i++) {
|
||
var tuple = serializedVectors[i],
|
||
ref = tuple[0],
|
||
elements = tuple[1]
|
||
|
||
fieldVectors[ref] = new lunr.Vector(elements)
|
||
}
|
||
|
||
for (var i = 0; i < serializedInvertedIndex.length; i++) {
|
||
var tuple = serializedInvertedIndex[i],
|
||
term = tuple[0],
|
||
posting = tuple[1]
|
||
|
||
tokenSetBuilder.insert(term)
|
||
invertedIndex[term] = posting
|
||
}
|
||
|
||
tokenSetBuilder.finish()
|
||
|
||
attrs.fields = serializedIndex.fields
|
||
|
||
attrs.fieldVectors = fieldVectors
|
||
attrs.invertedIndex = invertedIndex
|
||
attrs.tokenSet = tokenSetBuilder.root
|
||
attrs.pipeline = pipeline
|
||
|
||
return new lunr.Index(attrs)
|
||
}
|
||
/*!
|
||
* lunr.Builder
|
||
* Copyright (C) 2020 Oliver Nightingale
|
||
*/
|
||
|
||
/**
|
||
* lunr.Builder performs indexing on a set of documents and
|
||
* returns instances of lunr.Index ready for querying.
|
||
*
|
||
* All configuration of the index is done via the builder, the
|
||
* fields to index, the document reference, the text processing
|
||
* pipeline and document scoring parameters are all set on the
|
||
* builder before indexing.
|
||
*
|
||
* @constructor
|
||
* @property {string} _ref - Internal reference to the document reference field.
|
||
* @property {string[]} _fields - Internal reference to the document fields to index.
|
||
* @property {object} invertedIndex - The inverted index maps terms to document fields.
|
||
* @property {object} documentTermFrequencies - Keeps track of document term frequencies.
|
||
* @property {object} documentLengths - Keeps track of the length of documents added to the index.
|
||
* @property {lunr.tokenizer} tokenizer - Function for splitting strings into tokens for indexing.
|
||
* @property {lunr.Pipeline} pipeline - The pipeline performs text processing on tokens before indexing.
|
||
* @property {lunr.Pipeline} searchPipeline - A pipeline for processing search terms before querying the index.
|
||
* @property {number} documentCount - Keeps track of the total number of documents indexed.
|
||
* @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.
|
||
* @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.
|
||
* @property {number} termIndex - A counter incremented for each unique term, used to identify a terms position in the vector space.
|
||
* @property {array} metadataWhitelist - A list of metadata keys that have been whitelisted for entry in the index.
|
||
*/
|
||
lunr.Builder = function () {
|
||
this._ref = "id"
|
||
this._fields = Object.create(null)
|
||
this._documents = Object.create(null)
|
||
this.invertedIndex = Object.create(null)
|
||
this.fieldTermFrequencies = {}
|
||
this.fieldLengths = {}
|
||
this.tokenizer = lunr.tokenizer
|
||
this.pipeline = new lunr.Pipeline
|
||
this.searchPipeline = new lunr.Pipeline
|
||
this.documentCount = 0
|
||
this._b = 0.75
|
||
this._k1 = 1.2
|
||
this.termIndex = 0
|
||
this.metadataWhitelist = []
|
||
}
|
||
|
||
/**
|
||
* Sets the document field used as the document reference. Every document must have this field.
|
||
* The type of this field in the document should be a string, if it is not a string it will be
|
||
* coerced into a string by calling toString.
|
||
*
|
||
* The default ref is 'id'.
|
||
*
|
||
* The ref should _not_ be changed during indexing, it should be set before any documents are
|
||
* added to the index. Changing it during indexing can lead to inconsistent results.
|
||
*
|
||
* @param {string} ref - The name of the reference field in the document.
|
||
*/
|
||
lunr.Builder.prototype.ref = function (ref) {
|
||
this._ref = ref
|
||
}
|
||
|
||
/**
|
||
* A function that is used to extract a field from a document.
|
||
*
|
||
* Lunr expects a field to be at the top level of a document, if however the field
|
||
* is deeply nested within a document an extractor function can be used to extract
|
||
* the right field for indexing.
|
||
*
|
||
* @callback fieldExtractor
|
||
* @param {object} doc - The document being added to the index.
|
||
* @returns {?(string|object|object[])} obj - The object that will be indexed for this field.
|
||
* @example <caption>Extracting a nested field</caption>
|
||
* function (doc) { return doc.nested.field }
|
||
*/
|
||
|
||
/**
|
||
* Adds a field to the list of document fields that will be indexed. Every document being
|
||
* indexed should have this field. Null values for this field in indexed documents will
|
||
* not cause errors but will limit the chance of that document being retrieved by searches.
|
||
*
|
||
* All fields should be added before adding documents to the index. Adding fields after
|
||
* a document has been indexed will have no effect on already indexed documents.
|
||
*
|
||
* Fields can be boosted at build time. This allows terms within that field to have more
|
||
* importance when ranking search results. Use a field boost to specify that matches within
|
||
* one field are more important than other fields.
|
||
*
|
||
* @param {string} fieldName - The name of a field to index in all documents.
|
||
* @param {object} attributes - Optional attributes associated with this field.
|
||
* @param {number} [attributes.boost=1] - Boost applied to all terms within this field.
|
||
* @param {fieldExtractor} [attributes.extractor] - Function to extract a field from a document.
|
||
* @throws {RangeError} fieldName cannot contain unsupported characters '/'
|
||
*/
|
||
lunr.Builder.prototype.field = function (fieldName, attributes) {
|
||
if (/\//.test(fieldName)) {
|
||
throw new RangeError ("Field '" + fieldName + "' contains illegal character '/'")
|
||
}
|
||
|
||
this._fields[fieldName] = attributes || {}
|
||
}
|
||
|
||
/**
|
||
* A parameter to tune the amount of field length normalisation that is applied when
|
||
* calculating relevance scores. A value of 0 will completely disable any normalisation
|
||
* and a value of 1 will fully normalise field lengths. The default is 0.75. Values of b
|
||
* will be clamped to the range 0 - 1.
|
||
*
|
||
* @param {number} number - The value to set for this tuning parameter.
|
||
*/
|
||
lunr.Builder.prototype.b = function (number) {
|
||
if (number < 0) {
|
||
this._b = 0
|
||
} else if (number > 1) {
|
||
this._b = 1
|
||
} else {
|
||
this._b = number
|
||
}
|
||
}
|
||
|
||
/**
|
||
* A parameter that controls the speed at which a rise in term frequency results in term
|
||
* frequency saturation. The default value is 1.2. Setting this to a higher value will give
|
||
* slower saturation levels, a lower value will result in quicker saturation.
|
||
*
|
||
* @param {number} number - The value to set for this tuning parameter.
|
||
*/
|
||
lunr.Builder.prototype.k1 = function (number) {
|
||
this._k1 = number
|
||
}
|
||
|
||
/**
|
||
* Adds a document to the index.
|
||
*
|
||
* Before adding fields to the index the index should have been fully setup, with the document
|
||
* ref and all fields to index already having been specified.
|
||
*
|
||
* The document must have a field name as specified by the ref (by default this is 'id') and
|
||
* it should have all fields defined for indexing, though null or undefined values will not
|
||
* cause errors.
|
||
*
|
||
* Entire documents can be boosted at build time. Applying a boost to a document indicates that
|
||
* this document should rank higher in search results than other documents.
|
||
*
|
||
* @param {object} doc - The document to add to the index.
|
||
* @param {object} attributes - Optional attributes associated with this document.
|
||
* @param {number} [attributes.boost=1] - Boost applied to all terms within this document.
|
||
*/
|
||
lunr.Builder.prototype.add = function (doc, attributes) {
|
||
var docRef = doc[this._ref],
|
||
fields = Object.keys(this._fields)
|
||
|
||
this._documents[docRef] = attributes || {}
|
||
this.documentCount += 1
|
||
|
||
for (var i = 0; i < fields.length; i++) {
|
||
var fieldName = fields[i],
|
||
extractor = this._fields[fieldName].extractor,
|
||
field = extractor ? extractor(doc) : doc[fieldName],
|
||
tokens = this.tokenizer(field, {
|
||
fields: [fieldName]
|
||
}),
|
||
terms = this.pipeline.run(tokens),
|
||
fieldRef = new lunr.FieldRef (docRef, fieldName),
|
||
fieldTerms = Object.create(null)
|
||
|
||
this.fieldTermFrequencies[fieldRef] = fieldTerms
|
||
this.fieldLengths[fieldRef] = 0
|
||
|
||
// store the length of this field for this document
|
||
this.fieldLengths[fieldRef] += terms.length
|
||
|
||
// calculate term frequencies for this field
|
||
for (var j = 0; j < terms.length; j++) {
|
||
var term = terms[j]
|
||
|
||
if (fieldTerms[term] == undefined) {
|
||
fieldTerms[term] = 0
|
||
}
|
||
|
||
fieldTerms[term] += 1
|
||
|
||
// add to inverted index
|
||
// create an initial posting if one doesn't exist
|
||
if (this.invertedIndex[term] == undefined) {
|
||
var posting = Object.create(null)
|
||
posting["_index"] = this.termIndex
|
||
this.termIndex += 1
|
||
|
||
for (var k = 0; k < fields.length; k++) {
|
||
posting[fields[k]] = Object.create(null)
|
||
}
|
||
|
||
this.invertedIndex[term] = posting
|
||
}
|
||
|
||
// add an entry for this term/fieldName/docRef to the invertedIndex
|
||
if (this.invertedIndex[term][fieldName][docRef] == undefined) {
|
||
this.invertedIndex[term][fieldName][docRef] = Object.create(null)
|
||
}
|
||
|
||
// store all whitelisted metadata about this token in the
|
||
// inverted index
|
||
for (var l = 0; l < this.metadataWhitelist.length; l++) {
|
||
var metadataKey = this.metadataWhitelist[l],
|
||
metadata = term.metadata[metadataKey]
|
||
|
||
if (this.invertedIndex[term][fieldName][docRef][metadataKey] == undefined) {
|
||
this.invertedIndex[term][fieldName][docRef][metadataKey] = []
|
||
}
|
||
|
||
this.invertedIndex[term][fieldName][docRef][metadataKey].push(metadata)
|
||
}
|
||
}
|
||
|
||
}
|
||
}
|
||
|
||
/**
|
||
* Calculates the average document length for this index
|
||
*
|
||
* @private
|
||
*/
|
||
lunr.Builder.prototype.calculateAverageFieldLengths = function () {
|
||
|
||
var fieldRefs = Object.keys(this.fieldLengths),
|
||
numberOfFields = fieldRefs.length,
|
||
accumulator = {},
|
||
documentsWithField = {}
|
||
|
||
for (var i = 0; i < numberOfFields; i++) {
|
||
var fieldRef = lunr.FieldRef.fromString(fieldRefs[i]),
|
||
field = fieldRef.fieldName
|
||
|
||
documentsWithField[field] || (documentsWithField[field] = 0)
|
||
documentsWithField[field] += 1
|
||
|
||
accumulator[field] || (accumulator[field] = 0)
|
||
accumulator[field] += this.fieldLengths[fieldRef]
|
||
}
|
||
|
||
var fields = Object.keys(this._fields)
|
||
|
||
for (var i = 0; i < fields.length; i++) {
|
||
var fieldName = fields[i]
|
||
accumulator[fieldName] = accumulator[fieldName] / documentsWithField[fieldName]
|
||
}
|
||
|
||
this.averageFieldLength = accumulator
|
||
}
|
||
|
||
/**
|
||
* Builds a vector space model of every document using lunr.Vector
|
||
*
|
||
* @private
|
||
*/
|
||
lunr.Builder.prototype.createFieldVectors = function () {
|
||
var fieldVectors = {},
|
||
fieldRefs = Object.keys(this.fieldTermFrequencies),
|
||
fieldRefsLength = fieldRefs.length,
|
||
termIdfCache = Object.create(null)
|
||
|
||
for (var i = 0; i < fieldRefsLength; i++) {
|
||
var fieldRef = lunr.FieldRef.fromString(fieldRefs[i]),
|
||
fieldName = fieldRef.fieldName,
|
||
fieldLength = this.fieldLengths[fieldRef],
|
||
fieldVector = new lunr.Vector,
|
||
termFrequencies = this.fieldTermFrequencies[fieldRef],
|
||
terms = Object.keys(termFrequencies),
|
||
termsLength = terms.length
|
||
|
||
|
||
var fieldBoost = this._fields[fieldName].boost || 1,
|
||
docBoost = this._documents[fieldRef.docRef].boost || 1
|
||
|
||
for (var j = 0; j < termsLength; j++) {
|
||
var term = terms[j],
|
||
tf = termFrequencies[term],
|
||
termIndex = this.invertedIndex[term]._index,
|
||
idf, score, scoreWithPrecision
|
||
|
||
if (termIdfCache[term] === undefined) {
|
||
idf = lunr.idf(this.invertedIndex[term], this.documentCount)
|
||
termIdfCache[term] = idf
|
||
} else {
|
||
idf = termIdfCache[term]
|
||
}
|
||
|
||
score = idf * ((this._k1 + 1) * tf) / (this._k1 * (1 - this._b + this._b * (fieldLength / this.averageFieldLength[fieldName])) + tf)
|
||
score *= fieldBoost
|
||
score *= docBoost
|
||
scoreWithPrecision = Math.round(score * 1000) / 1000
|
||
// Converts 1.23456789 to 1.234.
|
||
// Reducing the precision so that the vectors take up less
|
||
// space when serialised. Doing it now so that they behave
|
||
// the same before and after serialisation. Also, this is
|
||
// the fastest approach to reducing a number's precision in
|
||
// JavaScript.
|
||
|
||
fieldVector.insert(termIndex, scoreWithPrecision)
|
||
}
|
||
|
||
fieldVectors[fieldRef] = fieldVector
|
||
}
|
||
|
||
this.fieldVectors = fieldVectors
|
||
}
|
||
|
||
/**
|
||
* Creates a token set of all tokens in the index using lunr.TokenSet
|
||
*
|
||
* @private
|
||
*/
|
||
lunr.Builder.prototype.createTokenSet = function () {
|
||
this.tokenSet = lunr.TokenSet.fromArray(
|
||
Object.keys(this.invertedIndex).sort()
|
||
)
|
||
}
|
||
|
||
/**
|
||
* Builds the index, creating an instance of lunr.Index.
|
||
*
|
||
* This completes the indexing process and should only be called
|
||
* once all documents have been added to the index.
|
||
*
|
||
* @returns {lunr.Index}
|
||
*/
|
||
lunr.Builder.prototype.build = function () {
|
||
this.calculateAverageFieldLengths()
|
||
this.createFieldVectors()
|
||
this.createTokenSet()
|
||
|
||
return new lunr.Index({
|
||
invertedIndex: this.invertedIndex,
|
||
fieldVectors: this.fieldVectors,
|
||
tokenSet: this.tokenSet,
|
||
fields: Object.keys(this._fields),
|
||
pipeline: this.searchPipeline
|
||
})
|
||
}
|
||
|
||
/**
|
||
* Applies a plugin to the index builder.
|
||
*
|
||
* A plugin is a function that is called with the index builder as its context.
|
||
* Plugins can be used to customise or extend the behaviour of the index
|
||
* in some way. A plugin is just a function, that encapsulated the custom
|
||
* behaviour that should be applied when building the index.
|
||
*
|
||
* The plugin function will be called with the index builder as its argument, additional
|
||
* arguments can also be passed when calling use. The function will be called
|
||
* with the index builder as its context.
|
||
*
|
||
* @param {Function} plugin The plugin to apply.
|
||
*/
|
||
lunr.Builder.prototype.use = function (fn) {
|
||
var args = Array.prototype.slice.call(arguments, 1)
|
||
args.unshift(this)
|
||
fn.apply(this, args)
|
||
}
|
||
/**
|
||
* Contains and collects metadata about a matching document.
|
||
* A single instance of lunr.MatchData is returned as part of every
|
||
* lunr.Index~Result.
|
||
*
|
||
* @constructor
|
||
* @param {string} term - The term this match data is associated with
|
||
* @param {string} field - The field in which the term was found
|
||
* @param {object} metadata - The metadata recorded about this term in this field
|
||
* @property {object} metadata - A cloned collection of metadata associated with this document.
|
||
* @see {@link lunr.Index~Result}
|
||
*/
|
||
lunr.MatchData = function (term, field, metadata) {
|
||
var clonedMetadata = Object.create(null),
|
||
metadataKeys = Object.keys(metadata || {})
|
||
|
||
// Cloning the metadata to prevent the original
|
||
// being mutated during match data combination.
|
||
// Metadata is kept in an array within the inverted
|
||
// index so cloning the data can be done with
|
||
// Array#slice
|
||
for (var i = 0; i < metadataKeys.length; i++) {
|
||
var key = metadataKeys[i]
|
||
clonedMetadata[key] = metadata[key].slice()
|
||
}
|
||
|
||
this.metadata = Object.create(null)
|
||
|
||
if (term !== undefined) {
|
||
this.metadata[term] = Object.create(null)
|
||
this.metadata[term][field] = clonedMetadata
|
||
}
|
||
}
|
||
|
||
/**
|
||
* An instance of lunr.MatchData will be created for every term that matches a
|
||
* document. However only one instance is required in a lunr.Index~Result. This
|
||
* method combines metadata from another instance of lunr.MatchData with this
|
||
* objects metadata.
|
||
*
|
||
* @param {lunr.MatchData} otherMatchData - Another instance of match data to merge with this one.
|
||
* @see {@link lunr.Index~Result}
|
||
*/
|
||
lunr.MatchData.prototype.combine = function (otherMatchData) {
|
||
var terms = Object.keys(otherMatchData.metadata)
|
||
|
||
for (var i = 0; i < terms.length; i++) {
|
||
var term = terms[i],
|
||
fields = Object.keys(otherMatchData.metadata[term])
|
||
|
||
if (this.metadata[term] == undefined) {
|
||
this.metadata[term] = Object.create(null)
|
||
}
|
||
|
||
for (var j = 0; j < fields.length; j++) {
|
||
var field = fields[j],
|
||
keys = Object.keys(otherMatchData.metadata[term][field])
|
||
|
||
if (this.metadata[term][field] == undefined) {
|
||
this.metadata[term][field] = Object.create(null)
|
||
}
|
||
|
||
for (var k = 0; k < keys.length; k++) {
|
||
var key = keys[k]
|
||
|
||
if (this.metadata[term][field][key] == undefined) {
|
||
this.metadata[term][field][key] = otherMatchData.metadata[term][field][key]
|
||
} else {
|
||
this.metadata[term][field][key] = this.metadata[term][field][key].concat(otherMatchData.metadata[term][field][key])
|
||
}
|
||
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
/**
|
||
* Add metadata for a term/field pair to this instance of match data.
|
||
*
|
||
* @param {string} term - The term this match data is associated with
|
||
* @param {string} field - The field in which the term was found
|
||
* @param {object} metadata - The metadata recorded about this term in this field
|
||
*/
|
||
lunr.MatchData.prototype.add = function (term, field, metadata) {
|
||
if (!(term in this.metadata)) {
|
||
this.metadata[term] = Object.create(null)
|
||
this.metadata[term][field] = metadata
|
||
return
|
||
}
|
||
|
||
if (!(field in this.metadata[term])) {
|
||
this.metadata[term][field] = metadata
|
||
return
|
||
}
|
||
|
||
var metadataKeys = Object.keys(metadata)
|
||
|
||
for (var i = 0; i < metadataKeys.length; i++) {
|
||
var key = metadataKeys[i]
|
||
|
||
if (key in this.metadata[term][field]) {
|
||
this.metadata[term][field][key] = this.metadata[term][field][key].concat(metadata[key])
|
||
} else {
|
||
this.metadata[term][field][key] = metadata[key]
|
||
}
|
||
}
|
||
}
|
||
/**
|
||
* A lunr.Query provides a programmatic way of defining queries to be performed
|
||
* against a {@link lunr.Index}.
|
||
*
|
||
* Prefer constructing a lunr.Query using the {@link lunr.Index#query} method
|
||
* so the query object is pre-initialized with the right index fields.
|
||
*
|
||
* @constructor
|
||
* @property {lunr.Query~Clause[]} clauses - An array of query clauses.
|
||
* @property {string[]} allFields - An array of all available fields in a lunr.Index.
|
||
*/
|
||
lunr.Query = function (allFields) {
|
||
this.clauses = []
|
||
this.allFields = allFields
|
||
}
|
||
|
||
/**
|
||
* Constants for indicating what kind of automatic wildcard insertion will be used when constructing a query clause.
|
||
*
|
||
* This allows wildcards to be added to the beginning and end of a term without having to manually do any string
|
||
* concatenation.
|
||
*
|
||
* The wildcard constants can be bitwise combined to select both leading and trailing wildcards.
|
||
*
|
||
* @constant
|
||
* @default
|
||
* @property {number} wildcard.NONE - The term will have no wildcards inserted, this is the default behaviour
|
||
* @property {number} wildcard.LEADING - Prepend the term with a wildcard, unless a leading wildcard already exists
|
||
* @property {number} wildcard.TRAILING - Append a wildcard to the term, unless a trailing wildcard already exists
|
||
* @see lunr.Query~Clause
|
||
* @see lunr.Query#clause
|
||
* @see lunr.Query#term
|
||
* @example <caption>query term with trailing wildcard</caption>
|
||
* query.term('foo', { wildcard: lunr.Query.wildcard.TRAILING })
|
||
* @example <caption>query term with leading and trailing wildcard</caption>
|
||
* query.term('foo', {
|
||
* wildcard: lunr.Query.wildcard.LEADING | lunr.Query.wildcard.TRAILING
|
||
* })
|
||
*/
|
||
|
||
lunr.Query.wildcard = new String ("*")
|
||
lunr.Query.wildcard.NONE = 0
|
||
lunr.Query.wildcard.LEADING = 1
|
||
lunr.Query.wildcard.TRAILING = 2
|
||
|
||
/**
|
||
* Constants for indicating what kind of presence a term must have in matching documents.
|
||
*
|
||
* @constant
|
||
* @enum {number}
|
||
* @see lunr.Query~Clause
|
||
* @see lunr.Query#clause
|
||
* @see lunr.Query#term
|
||
* @example <caption>query term with required presence</caption>
|
||
* query.term('foo', { presence: lunr.Query.presence.REQUIRED })
|
||
*/
|
||
lunr.Query.presence = {
|
||
/**
|
||
* Term's presence in a document is optional, this is the default value.
|
||
*/
|
||
OPTIONAL: 1,
|
||
|
||
/**
|
||
* Term's presence in a document is required, documents that do not contain
|
||
* this term will not be returned.
|
||
*/
|
||
REQUIRED: 2,
|
||
|
||
/**
|
||
* Term's presence in a document is prohibited, documents that do contain
|
||
* this term will not be returned.
|
||
*/
|
||
PROHIBITED: 3
|
||
}
|
||
|
||
/**
|
||
* A single clause in a {@link lunr.Query} contains a term and details on how to
|
||
* match that term against a {@link lunr.Index}.
|
||
*
|
||
* @typedef {Object} lunr.Query~Clause
|
||
* @property {string[]} fields - The fields in an index this clause should be matched against.
|
||
* @property {number} [boost=1] - Any boost that should be applied when matching this clause.
|
||
* @property {number} [editDistance] - Whether the term should have fuzzy matching applied, and how fuzzy the match should be.
|
||
* @property {boolean} [usePipeline] - Whether the term should be passed through the search pipeline.
|
||
* @property {number} [wildcard=lunr.Query.wildcard.NONE] - Whether the term should have wildcards appended or prepended.
|
||
* @property {number} [presence=lunr.Query.presence.OPTIONAL] - The terms presence in any matching documents.
|
||
*/
|
||
|
||
/**
|
||
* Adds a {@link lunr.Query~Clause} to this query.
|
||
*
|
||
* Unless the clause contains the fields to be matched all fields will be matched. In addition
|
||
* a default boost of 1 is applied to the clause.
|
||
*
|
||
* @param {lunr.Query~Clause} clause - The clause to add to this query.
|
||
* @see lunr.Query~Clause
|
||
* @returns {lunr.Query}
|
||
*/
|
||
lunr.Query.prototype.clause = function (clause) {
|
||
if (!('fields' in clause)) {
|
||
clause.fields = this.allFields
|
||
}
|
||
|
||
if (!('boost' in clause)) {
|
||
clause.boost = 1
|
||
}
|
||
|
||
if (!('usePipeline' in clause)) {
|
||
clause.usePipeline = true
|
||
}
|
||
|
||
if (!('wildcard' in clause)) {
|
||
clause.wildcard = lunr.Query.wildcard.NONE
|
||
}
|
||
|
||
if ((clause.wildcard & lunr.Query.wildcard.LEADING) && (clause.term.charAt(0) != lunr.Query.wildcard)) {
|
||
clause.term = "*" + clause.term
|
||
}
|
||
|
||
if ((clause.wildcard & lunr.Query.wildcard.TRAILING) && (clause.term.slice(-1) != lunr.Query.wildcard)) {
|
||
clause.term = "" + clause.term + "*"
|
||
}
|
||
|
||
if (!('presence' in clause)) {
|
||
clause.presence = lunr.Query.presence.OPTIONAL
|
||
}
|
||
|
||
this.clauses.push(clause)
|
||
|
||
return this
|
||
}
|
||
|
||
/**
|
||
* A negated query is one in which every clause has a presence of
|
||
* prohibited. These queries require some special processing to return
|
||
* the expected results.
|
||
*
|
||
* @returns boolean
|
||
*/
|
||
lunr.Query.prototype.isNegated = function () {
|
||
for (var i = 0; i < this.clauses.length; i++) {
|
||
if (this.clauses[i].presence != lunr.Query.presence.PROHIBITED) {
|
||
return false
|
||
}
|
||
}
|
||
|
||
return true
|
||
}
|
||
|
||
/**
|
||
* Adds a term to the current query, under the covers this will create a {@link lunr.Query~Clause}
|
||
* to the list of clauses that make up this query.
|
||
*
|
||
* The term is used as is, i.e. no tokenization will be performed by this method. Instead conversion
|
||
* to a token or token-like string should be done before calling this method.
|
||
*
|
||
* The term will be converted to a string by calling `toString`. Multiple terms can be passed as an
|
||
* array, each term in the array will share the same options.
|
||
*
|
||
* @param {object|object[]} term - The term(s) to add to the query.
|
||
* @param {object} [options] - Any additional properties to add to the query clause.
|
||
* @returns {lunr.Query}
|
||
* @see lunr.Query#clause
|
||
* @see lunr.Query~Clause
|
||
* @example <caption>adding a single term to a query</caption>
|
||
* query.term("foo")
|
||
* @example <caption>adding a single term to a query and specifying search fields, term boost and automatic trailing wildcard</caption>
|
||
* query.term("foo", {
|
||
* fields: ["title"],
|
||
* boost: 10,
|
||
* wildcard: lunr.Query.wildcard.TRAILING
|
||
* })
|
||
* @example <caption>using lunr.tokenizer to convert a string to tokens before using them as terms</caption>
|
||
* query.term(lunr.tokenizer("foo bar"))
|
||
*/
|
||
lunr.Query.prototype.term = function (term, options) {
|
||
if (Array.isArray(term)) {
|
||
term.forEach(function (t) { this.term(t, lunr.utils.clone(options)) }, this)
|
||
return this
|
||
}
|
||
|
||
var clause = options || {}
|
||
clause.term = term.toString()
|
||
|
||
this.clause(clause)
|
||
|
||
return this
|
||
}
|
||
lunr.QueryParseError = function (message, start, end) {
|
||
this.name = "QueryParseError"
|
||
this.message = message
|
||
this.start = start
|
||
this.end = end
|
||
}
|
||
|
||
lunr.QueryParseError.prototype = new Error
|
||
lunr.QueryLexer = function (str) {
|
||
this.lexemes = []
|
||
this.str = str
|
||
this.length = str.length
|
||
this.pos = 0
|
||
this.start = 0
|
||
this.escapeCharPositions = []
|
||
}
|
||
|
||
lunr.QueryLexer.prototype.run = function () {
|
||
var state = lunr.QueryLexer.lexText
|
||
|
||
while (state) {
|
||
state = state(this)
|
||
}
|
||
}
|
||
|
||
lunr.QueryLexer.prototype.sliceString = function () {
|
||
var subSlices = [],
|
||
sliceStart = this.start,
|
||
sliceEnd = this.pos
|
||
|
||
for (var i = 0; i < this.escapeCharPositions.length; i++) {
|
||
sliceEnd = this.escapeCharPositions[i]
|
||
subSlices.push(this.str.slice(sliceStart, sliceEnd))
|
||
sliceStart = sliceEnd + 1
|
||
}
|
||
|
||
subSlices.push(this.str.slice(sliceStart, this.pos))
|
||
this.escapeCharPositions.length = 0
|
||
|
||
return subSlices.join('')
|
||
}
|
||
|
||
lunr.QueryLexer.prototype.emit = function (type) {
|
||
this.lexemes.push({
|
||
type: type,
|
||
str: this.sliceString(),
|
||
start: this.start,
|
||
end: this.pos
|
||
})
|
||
|
||
this.start = this.pos
|
||
}
|
||
|
||
lunr.QueryLexer.prototype.escapeCharacter = function () {
|
||
this.escapeCharPositions.push(this.pos - 1)
|
||
this.pos += 1
|
||
}
|
||
|
||
lunr.QueryLexer.prototype.next = function () {
|
||
if (this.pos >= this.length) {
|
||
return lunr.QueryLexer.EOS
|
||
}
|
||
|
||
var char = this.str.charAt(this.pos)
|
||
this.pos += 1
|
||
return char
|
||
}
|
||
|
||
lunr.QueryLexer.prototype.width = function () {
|
||
return this.pos - this.start
|
||
}
|
||
|
||
lunr.QueryLexer.prototype.ignore = function () {
|
||
if (this.start == this.pos) {
|
||
this.pos += 1
|
||
}
|
||
|
||
this.start = this.pos
|
||
}
|
||
|
||
lunr.QueryLexer.prototype.backup = function () {
|
||
this.pos -= 1
|
||
}
|
||
|
||
lunr.QueryLexer.prototype.acceptDigitRun = function () {
|
||
var char, charCode
|
||
|
||
do {
|
||
char = this.next()
|
||
charCode = char.charCodeAt(0)
|
||
} while (charCode > 47 && charCode < 58)
|
||
|
||
if (char != lunr.QueryLexer.EOS) {
|
||
this.backup()
|
||
}
|
||
}
|
||
|
||
lunr.QueryLexer.prototype.more = function () {
|
||
return this.pos < this.length
|
||
}
|
||
|
||
lunr.QueryLexer.EOS = 'EOS'
|
||
lunr.QueryLexer.FIELD = 'FIELD'
|
||
lunr.QueryLexer.TERM = 'TERM'
|
||
lunr.QueryLexer.EDIT_DISTANCE = 'EDIT_DISTANCE'
|
||
lunr.QueryLexer.BOOST = 'BOOST'
|
||
lunr.QueryLexer.PRESENCE = 'PRESENCE'
|
||
|
||
lunr.QueryLexer.lexField = function (lexer) {
|
||
lexer.backup()
|
||
lexer.emit(lunr.QueryLexer.FIELD)
|
||
lexer.ignore()
|
||
return lunr.QueryLexer.lexText
|
||
}
|
||
|
||
lunr.QueryLexer.lexTerm = function (lexer) {
|
||
if (lexer.width() > 1) {
|
||
lexer.backup()
|
||
lexer.emit(lunr.QueryLexer.TERM)
|
||
}
|
||
|
||
lexer.ignore()
|
||
|
||
if (lexer.more()) {
|
||
return lunr.QueryLexer.lexText
|
||
}
|
||
}
|
||
|
||
lunr.QueryLexer.lexEditDistance = function (lexer) {
|
||
lexer.ignore()
|
||
lexer.acceptDigitRun()
|
||
lexer.emit(lunr.QueryLexer.EDIT_DISTANCE)
|
||
return lunr.QueryLexer.lexText
|
||
}
|
||
|
||
lunr.QueryLexer.lexBoost = function (lexer) {
|
||
lexer.ignore()
|
||
lexer.acceptDigitRun()
|
||
lexer.emit(lunr.QueryLexer.BOOST)
|
||
return lunr.QueryLexer.lexText
|
||
}
|
||
|
||
lunr.QueryLexer.lexEOS = function (lexer) {
|
||
if (lexer.width() > 0) {
|
||
lexer.emit(lunr.QueryLexer.TERM)
|
||
}
|
||
}
|
||
|
||
// This matches the separator used when tokenising fields
|
||
// within a document. These should match otherwise it is
|
||
// not possible to search for some tokens within a document.
|
||
//
|
||
// It is possible for the user to change the separator on the
|
||
// tokenizer so it _might_ clash with any other of the special
|
||
// characters already used within the search string, e.g. :.
|
||
//
|
||
// This means that it is possible to change the separator in
|
||
// such a way that makes some words unsearchable using a search
|
||
// string.
|
||
lunr.QueryLexer.termSeparator = lunr.tokenizer.separator
|
||
|
||
lunr.QueryLexer.lexText = function (lexer) {
|
||
while (true) {
|
||
var char = lexer.next()
|
||
|
||
if (char == lunr.QueryLexer.EOS) {
|
||
return lunr.QueryLexer.lexEOS
|
||
}
|
||
|
||
// Escape character is '\'
|
||
if (char.charCodeAt(0) == 92) {
|
||
lexer.escapeCharacter()
|
||
continue
|
||
}
|
||
|
||
if (char == ":") {
|
||
return lunr.QueryLexer.lexField
|
||
}
|
||
|
||
if (char == "~") {
|
||
lexer.backup()
|
||
if (lexer.width() > 0) {
|
||
lexer.emit(lunr.QueryLexer.TERM)
|
||
}
|
||
return lunr.QueryLexer.lexEditDistance
|
||
}
|
||
|
||
if (char == "^") {
|
||
lexer.backup()
|
||
if (lexer.width() > 0) {
|
||
lexer.emit(lunr.QueryLexer.TERM)
|
||
}
|
||
return lunr.QueryLexer.lexBoost
|
||
}
|
||
|
||
// "+" indicates term presence is required
|
||
// checking for length to ensure that only
|
||
// leading "+" are considered
|
||
if (char == "+" && lexer.width() === 1) {
|
||
lexer.emit(lunr.QueryLexer.PRESENCE)
|
||
return lunr.QueryLexer.lexText
|
||
}
|
||
|
||
// "-" indicates term presence is prohibited
|
||
// checking for length to ensure that only
|
||
// leading "-" are considered
|
||
if (char == "-" && lexer.width() === 1) {
|
||
lexer.emit(lunr.QueryLexer.PRESENCE)
|
||
return lunr.QueryLexer.lexText
|
||
}
|
||
|
||
if (char.match(lunr.QueryLexer.termSeparator)) {
|
||
return lunr.QueryLexer.lexTerm
|
||
}
|
||
}
|
||
}
|
||
|
||
lunr.QueryParser = function (str, query) {
|
||
this.lexer = new lunr.QueryLexer (str)
|
||
this.query = query
|
||
this.currentClause = {}
|
||
this.lexemeIdx = 0
|
||
}
|
||
|
||
lunr.QueryParser.prototype.parse = function () {
|
||
this.lexer.run()
|
||
this.lexemes = this.lexer.lexemes
|
||
|
||
var state = lunr.QueryParser.parseClause
|
||
|
||
while (state) {
|
||
state = state(this)
|
||
}
|
||
|
||
return this.query
|
||
}
|
||
|
||
lunr.QueryParser.prototype.peekLexeme = function () {
|
||
return this.lexemes[this.lexemeIdx]
|
||
}
|
||
|
||
lunr.QueryParser.prototype.consumeLexeme = function () {
|
||
var lexeme = this.peekLexeme()
|
||
this.lexemeIdx += 1
|
||
return lexeme
|
||
}
|
||
|
||
lunr.QueryParser.prototype.nextClause = function () {
|
||
var completedClause = this.currentClause
|
||
this.query.clause(completedClause)
|
||
this.currentClause = {}
|
||
}
|
||
|
||
lunr.QueryParser.parseClause = function (parser) {
|
||
var lexeme = parser.peekLexeme()
|
||
|
||
if (lexeme == undefined) {
|
||
return
|
||
}
|
||
|
||
switch (lexeme.type) {
|
||
case lunr.QueryLexer.PRESENCE:
|
||
return lunr.QueryParser.parsePresence
|
||
case lunr.QueryLexer.FIELD:
|
||
return lunr.QueryParser.parseField
|
||
case lunr.QueryLexer.TERM:
|
||
return lunr.QueryParser.parseTerm
|
||
default:
|
||
var errorMessage = "expected either a field or a term, found " + lexeme.type
|
||
|
||
if (lexeme.str.length >= 1) {
|
||
errorMessage += " with value '" + lexeme.str + "'"
|
||
}
|
||
|
||
throw new lunr.QueryParseError (errorMessage, lexeme.start, lexeme.end)
|
||
}
|
||
}
|
||
|
||
lunr.QueryParser.parsePresence = function (parser) {
|
||
var lexeme = parser.consumeLexeme()
|
||
|
||
if (lexeme == undefined) {
|
||
return
|
||
}
|
||
|
||
switch (lexeme.str) {
|
||
case "-":
|
||
parser.currentClause.presence = lunr.Query.presence.PROHIBITED
|
||
break
|
||
case "+":
|
||
parser.currentClause.presence = lunr.Query.presence.REQUIRED
|
||
break
|
||
default:
|
||
var errorMessage = "unrecognised presence operator'" + lexeme.str + "'"
|
||
throw new lunr.QueryParseError (errorMessage, lexeme.start, lexeme.end)
|
||
}
|
||
|
||
var nextLexeme = parser.peekLexeme()
|
||
|
||
if (nextLexeme == undefined) {
|
||
var errorMessage = "expecting term or field, found nothing"
|
||
throw new lunr.QueryParseError (errorMessage, lexeme.start, lexeme.end)
|
||
}
|
||
|
||
switch (nextLexeme.type) {
|
||
case lunr.QueryLexer.FIELD:
|
||
return lunr.QueryParser.parseField
|
||
case lunr.QueryLexer.TERM:
|
||
return lunr.QueryParser.parseTerm
|
||
default:
|
||
var errorMessage = "expecting term or field, found '" + nextLexeme.type + "'"
|
||
throw new lunr.QueryParseError (errorMessage, nextLexeme.start, nextLexeme.end)
|
||
}
|
||
}
|
||
|
||
lunr.QueryParser.parseField = function (parser) {
|
||
var lexeme = parser.consumeLexeme()
|
||
|
||
if (lexeme == undefined) {
|
||
return
|
||
}
|
||
|
||
if (parser.query.allFields.indexOf(lexeme.str) == -1) {
|
||
var possibleFields = parser.query.allFields.map(function (f) { return "'" + f + "'" }).join(', '),
|
||
errorMessage = "unrecognised field '" + lexeme.str + "', possible fields: " + possibleFields
|
||
|
||
throw new lunr.QueryParseError (errorMessage, lexeme.start, lexeme.end)
|
||
}
|
||
|
||
parser.currentClause.fields = [lexeme.str]
|
||
|
||
var nextLexeme = parser.peekLexeme()
|
||
|
||
if (nextLexeme == undefined) {
|
||
var errorMessage = "expecting term, found nothing"
|
||
throw new lunr.QueryParseError (errorMessage, lexeme.start, lexeme.end)
|
||
}
|
||
|
||
switch (nextLexeme.type) {
|
||
case lunr.QueryLexer.TERM:
|
||
return lunr.QueryParser.parseTerm
|
||
default:
|
||
var errorMessage = "expecting term, found '" + nextLexeme.type + "'"
|
||
throw new lunr.QueryParseError (errorMessage, nextLexeme.start, nextLexeme.end)
|
||
}
|
||
}
|
||
|
||
lunr.QueryParser.parseTerm = function (parser) {
|
||
var lexeme = parser.consumeLexeme()
|
||
|
||
if (lexeme == undefined) {
|
||
return
|
||
}
|
||
|
||
parser.currentClause.term = lexeme.str.toLowerCase()
|
||
|
||
if (lexeme.str.indexOf("*") != -1) {
|
||
parser.currentClause.usePipeline = false
|
||
}
|
||
|
||
var nextLexeme = parser.peekLexeme()
|
||
|
||
if (nextLexeme == undefined) {
|
||
parser.nextClause()
|
||
return
|
||
}
|
||
|
||
switch (nextLexeme.type) {
|
||
case lunr.QueryLexer.TERM:
|
||
parser.nextClause()
|
||
return lunr.QueryParser.parseTerm
|
||
case lunr.QueryLexer.FIELD:
|
||
parser.nextClause()
|
||
return lunr.QueryParser.parseField
|
||
case lunr.QueryLexer.EDIT_DISTANCE:
|
||
return lunr.QueryParser.parseEditDistance
|
||
case lunr.QueryLexer.BOOST:
|
||
return lunr.QueryParser.parseBoost
|
||
case lunr.QueryLexer.PRESENCE:
|
||
parser.nextClause()
|
||
return lunr.QueryParser.parsePresence
|
||
default:
|
||
var errorMessage = "Unexpected lexeme type '" + nextLexeme.type + "'"
|
||
throw new lunr.QueryParseError (errorMessage, nextLexeme.start, nextLexeme.end)
|
||
}
|
||
}
|
||
|
||
lunr.QueryParser.parseEditDistance = function (parser) {
|
||
var lexeme = parser.consumeLexeme()
|
||
|
||
if (lexeme == undefined) {
|
||
return
|
||
}
|
||
|
||
var editDistance = parseInt(lexeme.str, 10)
|
||
|
||
if (isNaN(editDistance)) {
|
||
var errorMessage = "edit distance must be numeric"
|
||
throw new lunr.QueryParseError (errorMessage, lexeme.start, lexeme.end)
|
||
}
|
||
|
||
parser.currentClause.editDistance = editDistance
|
||
|
||
var nextLexeme = parser.peekLexeme()
|
||
|
||
if (nextLexeme == undefined) {
|
||
parser.nextClause()
|
||
return
|
||
}
|
||
|
||
switch (nextLexeme.type) {
|
||
case lunr.QueryLexer.TERM:
|
||
parser.nextClause()
|
||
return lunr.QueryParser.parseTerm
|
||
case lunr.QueryLexer.FIELD:
|
||
parser.nextClause()
|
||
return lunr.QueryParser.parseField
|
||
case lunr.QueryLexer.EDIT_DISTANCE:
|
||
return lunr.QueryParser.parseEditDistance
|
||
case lunr.QueryLexer.BOOST:
|
||
return lunr.QueryParser.parseBoost
|
||
case lunr.QueryLexer.PRESENCE:
|
||
parser.nextClause()
|
||
return lunr.QueryParser.parsePresence
|
||
default:
|
||
var errorMessage = "Unexpected lexeme type '" + nextLexeme.type + "'"
|
||
throw new lunr.QueryParseError (errorMessage, nextLexeme.start, nextLexeme.end)
|
||
}
|
||
}
|
||
|
||
lunr.QueryParser.parseBoost = function (parser) {
|
||
var lexeme = parser.consumeLexeme()
|
||
|
||
if (lexeme == undefined) {
|
||
return
|
||
}
|
||
|
||
var boost = parseInt(lexeme.str, 10)
|
||
|
||
if (isNaN(boost)) {
|
||
var errorMessage = "boost must be numeric"
|
||
throw new lunr.QueryParseError (errorMessage, lexeme.start, lexeme.end)
|
||
}
|
||
|
||
parser.currentClause.boost = boost
|
||
|
||
var nextLexeme = parser.peekLexeme()
|
||
|
||
if (nextLexeme == undefined) {
|
||
parser.nextClause()
|
||
return
|
||
}
|
||
|
||
switch (nextLexeme.type) {
|
||
case lunr.QueryLexer.TERM:
|
||
parser.nextClause()
|
||
return lunr.QueryParser.parseTerm
|
||
case lunr.QueryLexer.FIELD:
|
||
parser.nextClause()
|
||
return lunr.QueryParser.parseField
|
||
case lunr.QueryLexer.EDIT_DISTANCE:
|
||
return lunr.QueryParser.parseEditDistance
|
||
case lunr.QueryLexer.BOOST:
|
||
return lunr.QueryParser.parseBoost
|
||
case lunr.QueryLexer.PRESENCE:
|
||
parser.nextClause()
|
||
return lunr.QueryParser.parsePresence
|
||
default:
|
||
var errorMessage = "Unexpected lexeme type '" + nextLexeme.type + "'"
|
||
throw new lunr.QueryParseError (errorMessage, nextLexeme.start, nextLexeme.end)
|
||
}
|
||
}
|
||
|
||
/**
|
||
* export the module via AMD, CommonJS or as a browser global
|
||
* Export code from https://github.com/umdjs/umd/blob/master/returnExports.js
|
||
*/
|
||
;(function (root, factory) {
|
||
if (true) {
|
||
// AMD. Register as an anonymous module.
|
||
!(__WEBPACK_AMD_DEFINE_FACTORY__ = (factory),
|
||
__WEBPACK_AMD_DEFINE_RESULT__ = (typeof __WEBPACK_AMD_DEFINE_FACTORY__ === 'function' ?
|
||
(__WEBPACK_AMD_DEFINE_FACTORY__.call(exports, __webpack_require__, exports, module)) :
|
||
__WEBPACK_AMD_DEFINE_FACTORY__),
|
||
__WEBPACK_AMD_DEFINE_RESULT__ !== undefined && (module.exports = __WEBPACK_AMD_DEFINE_RESULT__))
|
||
} else {}
|
||
}(this, function () {
|
||
/**
|
||
* Just return a value to define the module export.
|
||
* This example returns an object, but the module
|
||
* can return a function as the exported value.
|
||
*/
|
||
return lunr
|
||
}))
|
||
})();
|
||
|
||
|
||
/***/ })
|
||
|
||
/******/ });
|
||
/************************************************************************/
|
||
/******/ // The module cache
|
||
/******/ var __webpack_module_cache__ = {};
|
||
/******/
|
||
/******/ // The require function
|
||
/******/ function __webpack_require__(moduleId) {
|
||
/******/ // Check if module is in cache
|
||
/******/ var cachedModule = __webpack_module_cache__[moduleId];
|
||
/******/ if (cachedModule !== undefined) {
|
||
/******/ return cachedModule.exports;
|
||
/******/ }
|
||
/******/ // Create a new module (and put it into the cache)
|
||
/******/ var module = __webpack_module_cache__[moduleId] = {
|
||
/******/ // no module.id needed
|
||
/******/ // no module.loaded needed
|
||
/******/ exports: {}
|
||
/******/ };
|
||
/******/
|
||
/******/ // Execute the module function
|
||
/******/ __webpack_modules__[moduleId].call(module.exports, module, module.exports, __webpack_require__);
|
||
/******/
|
||
/******/ // Return the exports of the module
|
||
/******/ return module.exports;
|
||
/******/ }
|
||
/******/
|
||
/************************************************************************/
|
||
/******/ /* webpack/runtime/compat get default export */
|
||
/******/ (() => {
|
||
/******/ // getDefaultExport function for compatibility with non-harmony modules
|
||
/******/ __webpack_require__.n = (module) => {
|
||
/******/ var getter = module && module.__esModule ?
|
||
/******/ () => (module['default']) :
|
||
/******/ () => (module);
|
||
/******/ __webpack_require__.d(getter, { a: getter });
|
||
/******/ return getter;
|
||
/******/ };
|
||
/******/ })();
|
||
/******/
|
||
/******/ /* webpack/runtime/define property getters */
|
||
/******/ (() => {
|
||
/******/ // define getter functions for harmony exports
|
||
/******/ __webpack_require__.d = (exports, definition) => {
|
||
/******/ for(var key in definition) {
|
||
/******/ if(__webpack_require__.o(definition, key) && !__webpack_require__.o(exports, key)) {
|
||
/******/ Object.defineProperty(exports, key, { enumerable: true, get: definition[key] });
|
||
/******/ }
|
||
/******/ }
|
||
/******/ };
|
||
/******/ })();
|
||
/******/
|
||
/******/ /* webpack/runtime/hasOwnProperty shorthand */
|
||
/******/ (() => {
|
||
/******/ __webpack_require__.o = (obj, prop) => (Object.prototype.hasOwnProperty.call(obj, prop))
|
||
/******/ })();
|
||
/******/
|
||
/************************************************************************/
|
||
var __webpack_exports__ = {};
|
||
// This entry need to be wrapped in an IIFE because it need to be in strict mode.
|
||
(() => {
|
||
"use strict";
|
||
|
||
// UNUSED EXPORTS: SearchWorker
|
||
|
||
;// CONCATENATED MODULE: ./node_modules/comlink/dist/esm/comlink.mjs
|
||
/**
|
||
* @license
|
||
* Copyright 2019 Google LLC
|
||
* SPDX-License-Identifier: Apache-2.0
|
||
*/
|
||
const proxyMarker = Symbol("Comlink.proxy");
|
||
const createEndpoint = Symbol("Comlink.endpoint");
|
||
const releaseProxy = Symbol("Comlink.releaseProxy");
|
||
const finalizer = Symbol("Comlink.finalizer");
|
||
const throwMarker = Symbol("Comlink.thrown");
|
||
const isObject = (val) => (typeof val === "object" && val !== null) || typeof val === "function";
|
||
/**
|
||
* Internal transfer handle to handle objects marked to proxy.
|
||
*/
|
||
const proxyTransferHandler = {
|
||
canHandle: (val) => isObject(val) && val[proxyMarker],
|
||
serialize(obj) {
|
||
const { port1, port2 } = new MessageChannel();
|
||
expose(obj, port1);
|
||
return [port2, [port2]];
|
||
},
|
||
deserialize(port) {
|
||
port.start();
|
||
return wrap(port);
|
||
},
|
||
};
|
||
/**
|
||
* Internal transfer handler to handle thrown exceptions.
|
||
*/
|
||
const throwTransferHandler = {
|
||
canHandle: (value) => isObject(value) && throwMarker in value,
|
||
serialize({ value }) {
|
||
let serialized;
|
||
if (value instanceof Error) {
|
||
serialized = {
|
||
isError: true,
|
||
value: {
|
||
message: value.message,
|
||
name: value.name,
|
||
stack: value.stack,
|
||
},
|
||
};
|
||
}
|
||
else {
|
||
serialized = { isError: false, value };
|
||
}
|
||
return [serialized, []];
|
||
},
|
||
deserialize(serialized) {
|
||
if (serialized.isError) {
|
||
throw Object.assign(new Error(serialized.value.message), serialized.value);
|
||
}
|
||
throw serialized.value;
|
||
},
|
||
};
|
||
/**
|
||
* Allows customizing the serialization of certain values.
|
||
*/
|
||
const transferHandlers = new Map([
|
||
["proxy", proxyTransferHandler],
|
||
["throw", throwTransferHandler],
|
||
]);
|
||
function isAllowedOrigin(allowedOrigins, origin) {
|
||
for (const allowedOrigin of allowedOrigins) {
|
||
if (origin === allowedOrigin || allowedOrigin === "*") {
|
||
return true;
|
||
}
|
||
if (allowedOrigin instanceof RegExp && allowedOrigin.test(origin)) {
|
||
return true;
|
||
}
|
||
}
|
||
return false;
|
||
}
|
||
function expose(obj, ep = globalThis, allowedOrigins = ["*"]) {
|
||
ep.addEventListener("message", function callback(ev) {
|
||
if (!ev || !ev.data) {
|
||
return;
|
||
}
|
||
if (!isAllowedOrigin(allowedOrigins, ev.origin)) {
|
||
console.warn(`Invalid origin '${ev.origin}' for comlink proxy`);
|
||
return;
|
||
}
|
||
const { id, type, path } = Object.assign({ path: [] }, ev.data);
|
||
const argumentList = (ev.data.argumentList || []).map(fromWireValue);
|
||
let returnValue;
|
||
try {
|
||
const parent = path.slice(0, -1).reduce((obj, prop) => obj[prop], obj);
|
||
const rawValue = path.reduce((obj, prop) => obj[prop], obj);
|
||
switch (type) {
|
||
case "GET" /* MessageType.GET */:
|
||
{
|
||
returnValue = rawValue;
|
||
}
|
||
break;
|
||
case "SET" /* MessageType.SET */:
|
||
{
|
||
parent[path.slice(-1)[0]] = fromWireValue(ev.data.value);
|
||
returnValue = true;
|
||
}
|
||
break;
|
||
case "APPLY" /* MessageType.APPLY */:
|
||
{
|
||
returnValue = rawValue.apply(parent, argumentList);
|
||
}
|
||
break;
|
||
case "CONSTRUCT" /* MessageType.CONSTRUCT */:
|
||
{
|
||
const value = new rawValue(...argumentList);
|
||
returnValue = proxy(value);
|
||
}
|
||
break;
|
||
case "ENDPOINT" /* MessageType.ENDPOINT */:
|
||
{
|
||
const { port1, port2 } = new MessageChannel();
|
||
expose(obj, port2);
|
||
returnValue = transfer(port1, [port1]);
|
||
}
|
||
break;
|
||
case "RELEASE" /* MessageType.RELEASE */:
|
||
{
|
||
returnValue = undefined;
|
||
}
|
||
break;
|
||
default:
|
||
return;
|
||
}
|
||
}
|
||
catch (value) {
|
||
returnValue = { value, [throwMarker]: 0 };
|
||
}
|
||
Promise.resolve(returnValue)
|
||
.catch((value) => {
|
||
return { value, [throwMarker]: 0 };
|
||
})
|
||
.then((returnValue) => {
|
||
const [wireValue, transferables] = toWireValue(returnValue);
|
||
ep.postMessage(Object.assign(Object.assign({}, wireValue), { id }), transferables);
|
||
if (type === "RELEASE" /* MessageType.RELEASE */) {
|
||
// detach and deactive after sending release response above.
|
||
ep.removeEventListener("message", callback);
|
||
closeEndPoint(ep);
|
||
if (finalizer in obj && typeof obj[finalizer] === "function") {
|
||
obj[finalizer]();
|
||
}
|
||
}
|
||
})
|
||
.catch((error) => {
|
||
// Send Serialization Error To Caller
|
||
const [wireValue, transferables] = toWireValue({
|
||
value: new TypeError("Unserializable return value"),
|
||
[throwMarker]: 0,
|
||
});
|
||
ep.postMessage(Object.assign(Object.assign({}, wireValue), { id }), transferables);
|
||
});
|
||
});
|
||
if (ep.start) {
|
||
ep.start();
|
||
}
|
||
}
|
||
function isMessagePort(endpoint) {
|
||
return endpoint.constructor.name === "MessagePort";
|
||
}
|
||
function closeEndPoint(endpoint) {
|
||
if (isMessagePort(endpoint))
|
||
endpoint.close();
|
||
}
|
||
function wrap(ep, target) {
|
||
const pendingListeners = new Map();
|
||
ep.addEventListener("message", function handleMessage(ev) {
|
||
const { data } = ev;
|
||
if (!data || !data.id) {
|
||
return;
|
||
}
|
||
const resolver = pendingListeners.get(data.id);
|
||
if (!resolver) {
|
||
return;
|
||
}
|
||
try {
|
||
resolver(data);
|
||
}
|
||
finally {
|
||
pendingListeners.delete(data.id);
|
||
}
|
||
});
|
||
return createProxy(ep, pendingListeners, [], target);
|
||
}
|
||
function throwIfProxyReleased(isReleased) {
|
||
if (isReleased) {
|
||
throw new Error("Proxy has been released and is not useable");
|
||
}
|
||
}
|
||
function releaseEndpoint(ep) {
|
||
return requestResponseMessage(ep, new Map(), {
|
||
type: "RELEASE" /* MessageType.RELEASE */,
|
||
}).then(() => {
|
||
closeEndPoint(ep);
|
||
});
|
||
}
|
||
const proxyCounter = new WeakMap();
|
||
const proxyFinalizers = "FinalizationRegistry" in globalThis &&
|
||
new FinalizationRegistry((ep) => {
|
||
const newCount = (proxyCounter.get(ep) || 0) - 1;
|
||
proxyCounter.set(ep, newCount);
|
||
if (newCount === 0) {
|
||
releaseEndpoint(ep);
|
||
}
|
||
});
|
||
function registerProxy(proxy, ep) {
|
||
const newCount = (proxyCounter.get(ep) || 0) + 1;
|
||
proxyCounter.set(ep, newCount);
|
||
if (proxyFinalizers) {
|
||
proxyFinalizers.register(proxy, ep, proxy);
|
||
}
|
||
}
|
||
function unregisterProxy(proxy) {
|
||
if (proxyFinalizers) {
|
||
proxyFinalizers.unregister(proxy);
|
||
}
|
||
}
|
||
function createProxy(ep, pendingListeners, path = [], target = function () { }) {
|
||
let isProxyReleased = false;
|
||
const proxy = new Proxy(target, {
|
||
get(_target, prop) {
|
||
throwIfProxyReleased(isProxyReleased);
|
||
if (prop === releaseProxy) {
|
||
return () => {
|
||
unregisterProxy(proxy);
|
||
releaseEndpoint(ep);
|
||
pendingListeners.clear();
|
||
isProxyReleased = true;
|
||
};
|
||
}
|
||
if (prop === "then") {
|
||
if (path.length === 0) {
|
||
return { then: () => proxy };
|
||
}
|
||
const r = requestResponseMessage(ep, pendingListeners, {
|
||
type: "GET" /* MessageType.GET */,
|
||
path: path.map((p) => p.toString()),
|
||
}).then(fromWireValue);
|
||
return r.then.bind(r);
|
||
}
|
||
return createProxy(ep, pendingListeners, [...path, prop]);
|
||
},
|
||
set(_target, prop, rawValue) {
|
||
throwIfProxyReleased(isProxyReleased);
|
||
// FIXME: ES6 Proxy Handler `set` methods are supposed to return a
|
||
// boolean. To show good will, we return true asynchronously ¯\_(ツ)_/¯
|
||
const [value, transferables] = toWireValue(rawValue);
|
||
return requestResponseMessage(ep, pendingListeners, {
|
||
type: "SET" /* MessageType.SET */,
|
||
path: [...path, prop].map((p) => p.toString()),
|
||
value,
|
||
}, transferables).then(fromWireValue);
|
||
},
|
||
apply(_target, _thisArg, rawArgumentList) {
|
||
throwIfProxyReleased(isProxyReleased);
|
||
const last = path[path.length - 1];
|
||
if (last === createEndpoint) {
|
||
return requestResponseMessage(ep, pendingListeners, {
|
||
type: "ENDPOINT" /* MessageType.ENDPOINT */,
|
||
}).then(fromWireValue);
|
||
}
|
||
// We just pretend that `bind()` didn’t happen.
|
||
if (last === "bind") {
|
||
return createProxy(ep, pendingListeners, path.slice(0, -1));
|
||
}
|
||
const [argumentList, transferables] = processArguments(rawArgumentList);
|
||
return requestResponseMessage(ep, pendingListeners, {
|
||
type: "APPLY" /* MessageType.APPLY */,
|
||
path: path.map((p) => p.toString()),
|
||
argumentList,
|
||
}, transferables).then(fromWireValue);
|
||
},
|
||
construct(_target, rawArgumentList) {
|
||
throwIfProxyReleased(isProxyReleased);
|
||
const [argumentList, transferables] = processArguments(rawArgumentList);
|
||
return requestResponseMessage(ep, pendingListeners, {
|
||
type: "CONSTRUCT" /* MessageType.CONSTRUCT */,
|
||
path: path.map((p) => p.toString()),
|
||
argumentList,
|
||
}, transferables).then(fromWireValue);
|
||
},
|
||
});
|
||
registerProxy(proxy, ep);
|
||
return proxy;
|
||
}
|
||
function myFlat(arr) {
|
||
return Array.prototype.concat.apply([], arr);
|
||
}
|
||
function processArguments(argumentList) {
|
||
const processed = argumentList.map(toWireValue);
|
||
return [processed.map((v) => v[0]), myFlat(processed.map((v) => v[1]))];
|
||
}
|
||
const transferCache = new WeakMap();
|
||
function transfer(obj, transfers) {
|
||
transferCache.set(obj, transfers);
|
||
return obj;
|
||
}
|
||
function proxy(obj) {
|
||
return Object.assign(obj, { [proxyMarker]: true });
|
||
}
|
||
function windowEndpoint(w, context = globalThis, targetOrigin = "*") {
|
||
return {
|
||
postMessage: (msg, transferables) => w.postMessage(msg, targetOrigin, transferables),
|
||
addEventListener: context.addEventListener.bind(context),
|
||
removeEventListener: context.removeEventListener.bind(context),
|
||
};
|
||
}
|
||
function toWireValue(value) {
|
||
for (const [name, handler] of transferHandlers) {
|
||
if (handler.canHandle(value)) {
|
||
const [serializedValue, transferables] = handler.serialize(value);
|
||
return [
|
||
{
|
||
type: "HANDLER" /* WireValueType.HANDLER */,
|
||
name,
|
||
value: serializedValue,
|
||
},
|
||
transferables,
|
||
];
|
||
}
|
||
}
|
||
return [
|
||
{
|
||
type: "RAW" /* WireValueType.RAW */,
|
||
value,
|
||
},
|
||
transferCache.get(value) || [],
|
||
];
|
||
}
|
||
function fromWireValue(value) {
|
||
switch (value.type) {
|
||
case "HANDLER" /* WireValueType.HANDLER */:
|
||
return transferHandlers.get(value.name).deserialize(value.value);
|
||
case "RAW" /* WireValueType.RAW */:
|
||
return value.value;
|
||
}
|
||
}
|
||
function requestResponseMessage(ep, pendingListeners, msg, transfers) {
|
||
return new Promise((resolve) => {
|
||
const id = generateUUID();
|
||
pendingListeners.set(id, resolve);
|
||
if (ep.start) {
|
||
ep.start();
|
||
}
|
||
ep.postMessage(Object.assign({ id }, msg), transfers);
|
||
});
|
||
}
|
||
function generateUUID() {
|
||
return new Array(4)
|
||
.fill(0)
|
||
.map(() => Math.floor(Math.random() * Number.MAX_SAFE_INTEGER).toString(16))
|
||
.join("-");
|
||
}
|
||
|
||
|
||
//# sourceMappingURL=comlink.mjs.map
|
||
|
||
// EXTERNAL MODULE: ./node_modules/lunr/lunr.js
|
||
var lunr = __webpack_require__(8291);
|
||
var lunr_default = /*#__PURE__*/__webpack_require__.n(lunr);
|
||
;// CONCATENATED MODULE: ./.docusaurus/@easyops-cn/docusaurus-search-local/default/generated-constants.js
|
||
__webpack_require__(6121)((lunr_default()));(__webpack_require__(3397)/* .lunrLanguageZh */ .A)((lunr_default()));__webpack_require__(6106)((lunr_default()));const removeDefaultStopWordFilter=false;const language=["en","zh"];const searchIndexUrl="search-index{dir}.json?_=61f4eadd";const searchResultLimits=15;
|
||
;// CONCATENATED MODULE: ./node_modules/@easyops-cn/docusaurus-search-local/dist/client/client/utils/proxiedGeneratedConstants.js
|
||
// This file is auto generated while building.
|
||
|
||
;// CONCATENATED MODULE: ./node_modules/@easyops-cn/docusaurus-search-local/dist/client/client/utils/tokenize.js
|
||
/**
|
||
* Split a sentence to tokens, considering a sequence of consecutive Chinese words as a single token.
|
||
*
|
||
* @param text - Text to be tokenized.
|
||
* @param language - Languages used.
|
||
*
|
||
* @returns Tokens.
|
||
*/function tokenize(text,language){// Some languages have their own tokenizer.
|
||
if(language.length===1&&["ja","jp","th"].includes(language[0])){return (lunr_default())[language[0]].tokenizer(text).map(token=>token.toString());}let regExpMatchWords=/[^-\s]+/g;// Especially optimization for `zh`.
|
||
if(language.includes("zh")){// Currently only works fine with letters in Latin alphabet and Chinese.
|
||
// https://zhuanlan.zhihu.com/p/33335629
|
||
regExpMatchWords=/\w+|\p{Unified_Ideograph}+/gu;// regExpMatchWords = /\p{Unified_Ideograph}+|[^-\s\p{Unified_Ideograph}]+/gu;
|
||
// https://mothereff.in/regexpu#input=const+regex+%3D+/%5Cp%7BUnified_Ideograph%7D/u%3B&unicodePropertyEscape=1
|
||
// regExpMatchWords = /\w+|[\u3400-\u4DBF\u4E00-\u9FFC\uFA0E\uFA0F\uFA11\uFA13\uFA14\uFA1F\uFA21\uFA23\uFA24\uFA27-\uFA29\u{20000}-\u{2A6DD}\u{2A700}-\u{2B734}\u{2B740}-\u{2B81D}\u{2B820}-\u{2CEA1}\u{2CEB0}-\u{2EBE0}\u{30000}-\u{3134A}]+/gu
|
||
}return text.toLowerCase().match(regExpMatchWords)||[];}
|
||
;// CONCATENATED MODULE: ./node_modules/@easyops-cn/docusaurus-search-local/dist/client/client/utils/cutZhWords.js
|
||
/**
|
||
* Get all possible terms for a string of consecutive Chinese words,
|
||
* by a words dictionary.
|
||
*
|
||
* @remarks
|
||
*
|
||
* Terms are sorted in ascending order by the count of words.
|
||
*
|
||
* @param token - A string of consecutive Chinese words.
|
||
* @param zhDictionary - A Chinese words dictionary.
|
||
*
|
||
* @returns A smart term list.
|
||
*/function cutZhWords(token,zhDictionary){const wrappedTerms=[];function cut(subToken,carry){let matchedLastIndex=0;let matched=false;for(const words of zhDictionary){if(subToken.substr(0,words.length)===words){const nextCarry={missed:carry.missed,term:carry.term.concat({value:words})};if(subToken.length>words.length){cut(subToken.substr(words.length),nextCarry);}else{wrappedTerms.push(nextCarry);}matched=true;}else{for(let lastIndex=words.length-1;lastIndex>matchedLastIndex;lastIndex-=1){const subWords=words.substr(0,lastIndex);if(subToken.substr(0,lastIndex)===subWords){matchedLastIndex=lastIndex;const nextCarry={missed:carry.missed,term:carry.term.concat({value:subWords,trailing:true})};if(subToken.length>lastIndex){cut(subToken.substr(lastIndex),nextCarry);}else{wrappedTerms.push(nextCarry);}matched=true;break;}}}}if(!matched){if(subToken.length>0){cut(subToken.substr(1),{missed:carry.missed+1,term:carry.term});}else if(carry.term.length>0){wrappedTerms.push(carry);}}}cut(token,{missed:0,term:[]});return wrappedTerms.sort((a,b)=>{const aMissed=a.missed>0?1:0;const bMissed=b.missed>0?1:0;if(aMissed!==bMissed){// Put all no-words-missed terms before words-missed terms.
|
||
return aMissed-bMissed;}// Put terms with less words before those with more words.
|
||
return a.term.length-b.term.length;}).map(item=>item.term);}
|
||
;// CONCATENATED MODULE: ./node_modules/@easyops-cn/docusaurus-search-local/dist/client/client/utils/smartTerms.js
|
||
const MAX_TERMS=12;const HALF_MAX_TERMS=MAX_TERMS/2;/**
|
||
* Get all possible terms for a list of tokens consists of words mixed in Chinese and non-Chinese,
|
||
* by a Chinese words dictionary.
|
||
*
|
||
* @param tokens - Tokens consists of English words or strings of consecutive Chinese words.
|
||
* @param zhDictionary - A Chinese words dictionary.
|
||
*
|
||
* @returns A smart term list.
|
||
*/function smartTerms(tokens,zhDictionary){const tokenTerms=tokens.map(token=>{if(/\p{Unified_Ideograph}/u.test(token)){return cutZhWords(token,zhDictionary);}else{return[{value:token}];}}).slice(0,MAX_TERMS);const tokenTermsThatAreMultiple=tokenTerms.filter(tokenTerm=>tokenTerm.length>1);let termsProduct=1;let overflowed=false;for(const tokenTerm of tokenTermsThatAreMultiple){if(overflowed){tokenTerm.splice(1,tokenTerm.length-1);}else{if(tokenTerm.length>HALF_MAX_TERMS){tokenTerm.splice(HALF_MAX_TERMS,tokenTerm.length-HALF_MAX_TERMS);}const product=termsProduct*tokenTerm.length;if(product>=MAX_TERMS){if(product>MAX_TERMS){const max=Math.floor(MAX_TERMS/termsProduct);tokenTerm.splice(max,tokenTerm.length-max);termsProduct=max*termsProduct;}else{termsProduct=product;}if(termsProduct>HALF_MAX_TERMS){overflowed=true;}}else{termsProduct=product;}}}// Get all possible combinations of terms.
|
||
const terms=[];function combine(index,carry){if(index===tokenTerms.length||carry.length>=MAX_TERMS){terms.push(carry.slice(0,MAX_TERMS));return;}for(const term of tokenTerms[index]){combine(index+1,carry.concat(term));}}combine(0,[]);return terms;}
|
||
;// CONCATENATED MODULE: ./node_modules/@easyops-cn/docusaurus-search-local/dist/client/client/utils/smartQueries.js
|
||
/**
|
||
* Get all possible queries for a list of tokens consists of words mixed English and Chinese,
|
||
* by a Chinese words dictionary.
|
||
*
|
||
* @param tokens - Tokens consists of English words or strings of consecutive Chinese words.
|
||
* @param zhDictionary - A Chinese words dictionary.
|
||
*
|
||
* @returns A smart query list.
|
||
*/function smartQueries(tokens,zhDictionary){const terms=smartTerms(tokens,zhDictionary);if(terms.length===0){// There are no matched terms.
|
||
// All tokens are considered required and with wildcard.
|
||
return[{tokens,term:tokens.map(value=>({value,presence:(lunr_default()).Query.presence.REQUIRED,wildcard:(lunr_default()).Query.wildcard.LEADING|(lunr_default()).Query.wildcard.TRAILING}))}];}// The last token of a term maybe incomplete while user is typing.
|
||
for(const term of terms){term[term.length-1].maybeTyping=true;}// Try to append terms without stop words,
|
||
// since they are removed in the index.
|
||
const stopWordPipelines=[];for(const lang of language){if(lang==="en"){if(!removeDefaultStopWordFilter){stopWordPipelines.unshift((lunr_default()).stopWordFilter);}}else{const lunrLang=(lunr_default())[lang];if(lunrLang.stopWordFilter){stopWordPipelines.unshift(lunrLang.stopWordFilter);}}}let refinedTerms;if(stopWordPipelines.length>0){const pipe=term=>stopWordPipelines.reduce((term,p)=>term.filter(item=>p(item.value)),term);refinedTerms=[];const newTerms=[];for(const term of terms){const filteredTerm=pipe(term);refinedTerms.push(filteredTerm);// Add extra terms only if some stop words are removed,
|
||
// and some non-stop-words exist too.
|
||
if(filteredTerm.length<term.length&&filteredTerm.length>0){newTerms.push(filteredTerm);}}terms.push(...newTerms);}else{refinedTerms=terms.slice();}// Also try to add extra terms which miss one of the searched tokens,
|
||
// when the term contains 3 or more tokens,
|
||
// to improve the search precision.
|
||
const extraTerms=[];for(const term of refinedTerms){if(term.length>2){for(let i=term.length-1;i>=0;i-=1){extraTerms.push(term.slice(0,i).concat(term.slice(i+1)));}}}return getQueriesMaybeTyping(terms).concat(getQueriesMaybeTyping(extraTerms));}function getQueriesMaybeTyping(terms){return termsToQueries(terms).concat(termsToQueries(// Ignore terms whose last token already has a trailing wildcard,
|
||
// or the last token is not `maybeTyping`.
|
||
terms.filter(term=>{const token=term[term.length-1];return!token.trailing&&token.maybeTyping;}),true));}function termsToQueries(terms,maybeTyping){return terms.map(term=>({tokens:term.map(item=>item.value),term:term.map(item=>({value:item.value,presence:(lunr_default()).Query.presence.REQUIRED,// The last token of a term maybe incomplete while user is typing.
|
||
// So append more queries with trailing wildcard added.
|
||
wildcard:(maybeTyping?item.trailing||item.maybeTyping:item.trailing)?(lunr_default()).Query.wildcard.TRAILING:(lunr_default()).Query.wildcard.NONE}))}));}
|
||
;// CONCATENATED MODULE: ./node_modules/@easyops-cn/docusaurus-search-local/dist/client/shared/interfaces.js
|
||
var SearchDocumentType;(function(SearchDocumentType){SearchDocumentType[SearchDocumentType["Title"]=0]="Title";SearchDocumentType[SearchDocumentType["Heading"]=1]="Heading";SearchDocumentType[SearchDocumentType["Description"]=2]="Description";SearchDocumentType[SearchDocumentType["Keywords"]=3]="Keywords";SearchDocumentType[SearchDocumentType["Content"]=4]="Content";})(SearchDocumentType||(SearchDocumentType={}));
|
||
;// CONCATENATED MODULE: ./node_modules/@easyops-cn/docusaurus-search-local/dist/client/client/utils/sortSearchResults.js
|
||
function sortSearchResults(results){results.forEach((item,index)=>{item.index=index;});// Put search results of headings/contents/descriptions just after
|
||
// their belonged page's title, if existed.
|
||
results.sort((a,b)=>{let aPageIndex=(a.type===SearchDocumentType.Heading||a.type===SearchDocumentType.Content||a.type===SearchDocumentType.Description)&&a.page?results.findIndex(item=>item.document===a.page):a.index;let bPageIndex=(b.type===SearchDocumentType.Heading||b.type===SearchDocumentType.Content||b.type===SearchDocumentType.Description)&&b.page?results.findIndex(item=>item.document===b.page):b.index;if(aPageIndex===-1){aPageIndex=a.index;}if(bPageIndex===-1){bPageIndex=b.index;}if(aPageIndex===bPageIndex){const diff=(b.type===0?1:0)-(a.type===0?1:0);return diff===0?a.index-b.index:diff;}return aPageIndex-bPageIndex;});}
|
||
;// CONCATENATED MODULE: ./node_modules/@easyops-cn/docusaurus-search-local/dist/client/client/utils/processTreeStatusOfSearchResults.js
|
||
function processTreeStatusOfSearchResults(results){results.forEach((item,i)=>{if(i>0&&item.page&&results.slice(0,i).some(prev=>(prev.type===SearchDocumentType.Keywords?prev.page:prev.document)===item.page)){if(i<results.length-1&&results[i+1].page===item.page){item.isInterOfTree=true;}else{item.isLastOfTree=true;}}});}
|
||
;// CONCATENATED MODULE: ./node_modules/@easyops-cn/docusaurus-search-local/dist/client/client/theme/worker.js
|
||
const cache=new Map();class SearchWorker{async fetchIndexes(baseUrl,searchContext){await this.lowLevelFetchIndexes(baseUrl,searchContext);}async lowLevelFetchIndexes(baseUrl,searchContext){const cacheKey=`${baseUrl}${searchContext}`;let promise=cache.get(cacheKey);if(!promise){promise=legacyFetchIndexes(baseUrl,searchContext);cache.set(cacheKey,promise);}return promise;}async search(baseUrl,searchContext,input){const rawTokens=tokenize(input,language);if(rawTokens.length===0){return[];}const{wrappedIndexes,zhDictionary}=await this.lowLevelFetchIndexes(baseUrl,searchContext);const queries=smartQueries(rawTokens,zhDictionary);const results=[];search:for(const{term,tokens}of queries){for(const{documents,index,type}of wrappedIndexes){results.push(...index.query(query=>{for(const item of term){query.term(item.value,{wildcard:item.wildcard,presence:item.presence});}}).slice(0,searchResultLimits)// Remove duplicated results.
|
||
.filter(result=>!results.some(item=>item.document.i.toString()===result.ref)).slice(0,searchResultLimits-results.length).map(result=>{const document=documents.find(doc=>doc.i.toString()===result.ref);return{document,type,page:type!==SearchDocumentType.Title&&wrappedIndexes[0].documents.find(doc=>doc.i===document.p),metadata:result.matchData.metadata,tokens,score:result.score};}));if(results.length>=searchResultLimits){break search;}}}sortSearchResults(results);processTreeStatusOfSearchResults(results);return results;}}async function legacyFetchIndexes(baseUrl,searchContext){const url=`${baseUrl}${searchIndexUrl.replace("{dir}",searchContext?`-${searchContext.replace(/\//g,"-")}`:"")}`;// Catch potential attacks.
|
||
const fullUrl=new URL(url,location.origin);if(fullUrl.origin!==location.origin){throw new Error("Unexpected version url");}const json=await(await fetch(url)).json();const wrappedIndexes=json.map(({documents,index},type)=>({type:type,documents,index:lunr_default().Index.load(index)}));const zhDictionary=json.reduce((acc,item)=>{for(const tuple of item.index.invertedIndex){if(/\p{Unified_Ideograph}/u.test(tuple[0][0])){acc.add(tuple[0]);}}return acc;},new Set());return{wrappedIndexes,zhDictionary:Array.from(zhDictionary)};}expose(SearchWorker);
|
||
})();
|
||
|
||
module.exports = __webpack_exports__;
|
||
/******/ })()
|
||
; |