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thinker.mjs
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var levenshtein$1 = {exports: {}};
const peq = new Uint32Array(0x10000);
const myers_32 = (a, b) => {
const n = a.length;
const m = b.length;
const lst = 1 << (n - 1);
let pv = -1;
let mv = 0;
let sc = n;
let i = n;
while (i--) {
peq[a.charCodeAt(i)] |= 1 << i;
}
for (i = 0; i < m; i++) {
let eq = peq[b.charCodeAt(i)];
const xv = eq | mv;
eq |= ((eq & pv) + pv) ^ pv;
mv |= ~(eq | pv);
pv &= eq;
if (mv & lst) {
sc++;
}
if (pv & lst) {
sc--;
}
mv = (mv << 1) | 1;
pv = (pv << 1) | ~(xv | mv);
mv &= xv;
}
i = n;
while (i--) {
peq[a.charCodeAt(i)] = 0;
}
return sc;
};
const myers_x = (a, b) => {
const n = a.length;
const m = b.length;
const mhc = [];
const phc = [];
const hsize = Math.ceil(n / 32);
const vsize = Math.ceil(m / 32);
let score = m;
for (let i = 0; i < hsize; i++) {
phc[i] = -1;
mhc[i] = 0;
}
let j = 0;
for (; j < vsize - 1; j++) {
let mv = 0;
let pv = -1;
const start = j * 32;
const end = Math.min(32, m) + start;
for (let k = start; k < end; k++) {
peq[b.charCodeAt(k)] |= 1 << k;
}
score = m;
for (let i = 0; i < n; i++) {
const eq = peq[a.charCodeAt(i)];
const pb = (phc[(i / 32) | 0] >>> i) & 1;
const mb = (mhc[(i / 32) | 0] >>> i) & 1;
const xv = eq | mv;
const xh = ((((eq | mb) & pv) + pv) ^ pv) | eq | mb;
let ph = mv | ~(xh | pv);
let mh = pv & xh;
if ((ph >>> 31) ^ pb) {
phc[(i / 32) | 0] ^= 1 << i;
}
if ((mh >>> 31) ^ mb) {
mhc[(i / 32) | 0] ^= 1 << i;
}
ph = (ph << 1) | pb;
mh = (mh << 1) | mb;
pv = mh | ~(xv | ph);
mv = ph & xv;
}
for (let k = start; k < end; k++) {
peq[b.charCodeAt(k)] = 0;
}
}
let mv = 0;
let pv = -1;
const start = j * 32;
const end = Math.min(32, m - start) + start;
for (let k = start; k < end; k++) {
peq[b.charCodeAt(k)] |= 1 << k;
}
score = m;
for (let i = 0; i < n; i++) {
const eq = peq[a.charCodeAt(i)];
const pb = (phc[(i / 32) | 0] >>> i) & 1;
const mb = (mhc[(i / 32) | 0] >>> i) & 1;
const xv = eq | mv;
const xh = ((((eq | mb) & pv) + pv) ^ pv) | eq | mb;
let ph = mv | ~(xh | pv);
let mh = pv & xh;
score += (ph >>> (m - 1)) & 1;
score -= (mh >>> (m - 1)) & 1;
if ((ph >>> 31) ^ pb) {
phc[(i / 32) | 0] ^= 1 << i;
}
if ((mh >>> 31) ^ mb) {
mhc[(i / 32) | 0] ^= 1 << i;
}
ph = (ph << 1) | pb;
mh = (mh << 1) | mb;
pv = mh | ~(xv | ph);
mv = ph & xv;
}
for (let k = start; k < end; k++) {
peq[b.charCodeAt(k)] = 0;
}
return score;
};
const distance = (a, b) => {
if (a.length > b.length) {
const tmp = b;
b = a;
a = tmp;
}
if (a.length === 0) {
return b.length;
}
if (a.length <= 32) {
return myers_32(a, b);
}
return myers_x(a, b);
};
const closest = (str, arr) => {
let min_distance = Infinity;
let min_index = 0;
for (let i = 0; i < arr.length; i++) {
const dist = distance(str, arr[i]);
if (dist < min_distance) {
min_distance = dist;
min_index = i;
}
}
return arr[min_index];
};
var fastestLevenshtein = {
closest, distance
};
(function (module, exports) {
(function() {
var collator;
try {
collator = (typeof Intl !== "undefined" && typeof Intl.Collator !== "undefined") ? Intl.Collator("generic", { sensitivity: "base" }) : null;
} catch (err){
console.log("Collator could not be initialized and wouldn't be used");
}
var levenshtein = fastestLevenshtein;
// arrays to re-use
var prevRow = [],
str2Char = [];
/**
* Based on the algorithm at http://en.wikipedia.org/wiki/Levenshtein_distance.
*/
var Levenshtein = {
/**
* Calculate levenshtein distance of the two strings.
*
* @param str1 String the first string.
* @param str2 String the second string.
* @param [options] Additional options.
* @param [options.useCollator] Use `Intl.Collator` for locale-sensitive string comparison.
* @return Integer the levenshtein distance (0 and above).
*/
get: function(str1, str2, options) {
var useCollator = (options && collator && options.useCollator);
if (useCollator) {
var str1Len = str1.length,
str2Len = str2.length;
// base cases
if (str1Len === 0) return str2Len;
if (str2Len === 0) return str1Len;
// two rows
var curCol, nextCol, i, j, tmp;
// initialise previous row
for (i=0; i<str2Len; ++i) {
prevRow[i] = i;
str2Char[i] = str2.charCodeAt(i);
}
prevRow[str2Len] = str2Len;
var strCmp;
// calculate current row distance from previous row using collator
for (i = 0; i < str1Len; ++i) {
nextCol = i + 1;
for (j = 0; j < str2Len; ++j) {
curCol = nextCol;
// substution
strCmp = 0 === collator.compare(str1.charAt(i), String.fromCharCode(str2Char[j]));
nextCol = prevRow[j] + (strCmp ? 0 : 1);
// insertion
tmp = curCol + 1;
if (nextCol > tmp) {
nextCol = tmp;
}
// deletion
tmp = prevRow[j + 1] + 1;
if (nextCol > tmp) {
nextCol = tmp;
}
// copy current col value into previous (in preparation for next iteration)
prevRow[j] = curCol;
}
// copy last col value into previous (in preparation for next iteration)
prevRow[j] = nextCol;
}
return nextCol;
}
return levenshtein.distance(str1, str2);
}
};
// amd
if (module !== null && 'object' !== "undefined" && module.exports === exports) {
module.exports = Levenshtein;
}
// web worker
else if (typeof self !== "undefined" && typeof self.postMessage === 'function' && typeof self.importScripts === 'function') {
self.Levenshtein = Levenshtein;
}
// browser main thread
else if (typeof window !== "undefined" && window !== null) {
window.Levenshtein = Levenshtein;
}
}());
}(levenshtein$1, levenshtein$1.exports));
var levenshtein = levenshtein$1.exports;
/*
Copyright (c) 2015 Hexagon <[email protected]>
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
*/
//msgpack = require("msgpack-lite"),
//fs = require("fs");
function Index(options) {
let
// Array of Array with DocumentIndex, FieldIndex, OcurrencesOfWordInCurrentDocumentAndField
// Index of outer array is WordIndex, matched to an actual word through lookupOriginal, lookupPartial, lookupProcessed och lookupPreProcessed
// [
// [DocumentIndex, FieldIndex, OcurrencesOfWordInCurrentDocumentAndField, DocumentIndex, FieldIndex, OcurrencesOfWordInCurrentDocumentAndField, ... ],
// [DocumentIndex, FieldIndex, OcurrencesOfWordInCurrentDocumentAndField, DocumentIndex, FieldIndex, OcurrencesOfWordInCurrentDocumentAndField, ... ],
// [DocumentIndex, FieldIndex, OcurrencesOfWordInCurrentDocumentAndField, DocumentIndex, FieldIndex, OcurrencesOfWordInCurrentDocumentAndField, ... ],
// [DocumentIndex, FieldIndex, OcurrencesOfWordInCurrentDocumentAndField, DocumentIndex, FieldIndex, OcurrencesOfWordInCurrentDocumentAndField, ... ]
// }
words = [],
// Array of Array with [docId, metaData, wordCountField1, wordCOuntField2, ...]
// Index of outer array is DocumentIdex
// [
// [docId,metaData,wordCountf1,wordCountf2,wordCountf3,wordCountf4],
// [docId,metaData,wordCountf1,wordCountf2,wordCountf3,wordCountf4],
// ]
documents = [],
// Lookup Maps of original words
// {
// "ActualWord": WordIndexIn data
// }
lookupPreProcessed = new Map(null),
// Lookup Maps of partial and processed words
// {
// "ActualWord": [WordIndexIn data, WordIndexIn data, ... ]
// }
lookupPartial = new Map(null),
lookupProcessed = new Map(null),
lookupSuggestion = new Map(null),
query = function ( location, lookupMap, filterFunc ) {
// Add object
let matches = lookupMap.get(location),
arr1 = [],
arr2,
i,
newIdx,
idx,
idxKey,
iEntry,
subroutine = function (word, arr1) {
arr2 = words[word];
idx = new Map();
for(let j = 0; j < arr2.length; j+=3) {
if ( ! ( filterFunc && !filterFunc(documents[arr2[j]][1]))) {
idxKey = arr2[j]*1e10+arr2[j+1];
if ( (iEntry = idx.get(idxKey)) ) {
arr1[iEntry+2]++;
} else {
newIdx = arr1.length;
idx.set(idxKey, newIdx);
arr1[newIdx] = arr2[j];
arr1[newIdx+1] = arr2[j+1];
arr1[newIdx+2] = arr2[j+2];
}
}
}
};
if( matches !== undefined ) {
if (matches.constructor === Array) {
for( i = 0; i < matches.length; i++) {
subroutine(matches[i], arr1);
}
} else {
subroutine(matches, arr1);
}
return arr1;
} else {
return;
}
},
populate = function ( location, wordIdx, lookup ) {
let dest = lookup.get(location);
// Add object
if(dest === undefined) {
lookup.set(location, wordIdx);
} else {
// Only insert if not already existing
if( dest.constructor === Array ) {
if ( dest.indexOf(wordIdx) === -1 ) {
dest[dest.length] = wordIdx;
lookup.set(location, dest);
}
} else {
if ( dest !== wordIdx ) {
dest = [dest, wordIdx];
lookup.set(location, dest);
}
}
}
};
const exported = {
populatePartial: function ( location, wordIdx ) {
populate( location, wordIdx, lookupPartial);
},
populateProcessed: function ( location, wordIdx ) {
populate( location, wordIdx, lookupProcessed);
},
populateDocuments: function (docid, meta) {
documents.push([docid, meta]);
return documents.length-1;
},
getMetadata: function (docidx) {
return documents[docidx][1];
},
docIndexToId: function (docidx) {
return documents[docidx][0];
},
populatePreProcessed: function ( location, docIdx, fieldIdx, suggest ) {
let
i,
indexOriginal,
suggestionCounter,
match,
found;
// Index original words
indexOriginal = lookupPreProcessed.get(location.preprocessed);
if(indexOriginal === undefined) {
indexOriginal = words.length;
lookupPreProcessed.set(location.preprocessed, indexOriginal);
words[indexOriginal] = [docIdx, fieldIdx, 1];
} else {
found = false;
match = words[indexOriginal];
for (i = 0; i < match.length; i+=3) {
if(match[i] === docIdx && match[i+1] === fieldIdx ) {
match[i+2]++;
found = true;
break;
}
}
if (!found) {
match.push(docIdx, fieldIdx, 1);
}
}
// Update wordcount of current document and field
documents[docIdx][fieldIdx+2] = (documents[docIdx][fieldIdx+2] || 0) + 1;
// Index original words for expression suggestions, this is filtered on
// first run of 'findClosestWord'
// ---
// Do not suggest augmented words
if (suggest) {
suggestionCounter = lookupSuggestion.get(location.original);
if(suggestionCounter === undefined) {
lookupSuggestion.set(location.original, 1);
} else {
lookupSuggestion.set(location.original, ++suggestionCounter);
}
}
return indexOriginal;
},
getDocuments: function () {
return documents;
},
query: function ( location, exact, filterFunc ) {
let hits = {};
if ( exact ) {
hits.exact = query( location.preprocessed, lookupPreProcessed, filterFunc ) || [];
hits.processed = [];
hits.partial = [];
} else {
hits.exact = query( location.preprocessed, lookupPreProcessed, filterFunc ) || [];
hits.processed = query( location.processed, lookupProcessed, filterFunc ) || [];
if ( (hits.partial = query( location.preprocessed, lookupPartial, filterFunc )) === undefined ) hits.partial = query( location.processed, lookupPartial, filterFunc ) || [];
}
return hits;
},
findClosestWord: function ( w ) {
let closestValue = Infinity, closestIndex, distance;
lookupSuggestion.forEach(function(value, key) {
distance = levenshtein.get(w, key);
if (distance < closestValue) {
closestIndex = key;
closestValue = distance;
}
});
if (closestIndex !== undefined && closestValue < 5) {
return closestIndex;
}
},
compress: function () {
// Always
if (options.enableSuggestions) {
lookupSuggestion.forEach(function(value, key) {
if(value < options.suggestionMinWordCount) {
lookupSuggestion.delete(key);
}
});
}
}
};
return exported;
}
// Standard suffix manipulations.
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'
};
var step3list = {
icate: 'ic',
ative: '',
alize: 'al',
iciti: 'ic',
ical: 'ic',
ful: '',
ness: ''
};
// Consonant-vowel sequences.
var consonant = '[^aeiou]';
var vowel = '[aeiouy]';
var consonants = '(' + consonant + '[^aeiouy]*)';
var vowels = '(' + vowel + '[aeiou]*)';
var gt0 = new RegExp('^' + consonants + '?' + vowels + consonants);
var eq1 = new RegExp(
'^' + consonants + '?' + vowels + consonants + vowels + '?$'
);
var gt1 = new RegExp('^' + consonants + '?(' + vowels + consonants + '){2,}');
var vowelInStem = new RegExp('^' + consonants + '?' + vowel);
var consonantLike = new RegExp('^' + consonants + vowel + '[^aeiouwxy]$');
// Exception expressions.
var sfxLl = /ll$/;
var sfxE = /^(.+?)e$/;
var sfxY = /^(.+?)y$/;
var sfxIon = /^(.+?(s|t))(ion)$/;
var sfxEdOrIng = /^(.+?)(ed|ing)$/;
var sfxAtOrBlOrIz = /(at|bl|iz)$/;
var sfxEED = /^(.+?)eed$/;
var sfxS = /^.+?[^s]s$/;
var sfxSsesOrIes = /^.+?(ss|i)es$/;
var sfxMultiConsonantLike = /([^aeiouylsz])\1$/;
var step2 = /^(.+?)(ational|tional|enci|anci|izer|bli|alli|entli|eli|ousli|ization|ation|ator|alism|iveness|fulness|ousness|aliti|iviti|biliti|logi)$/;
var step3 = /^(.+?)(icate|ative|alize|iciti|ical|ful|ness)$/;
var step4 = /^(.+?)(al|ance|ence|er|ic|able|ible|ant|ement|ment|ent|ou|ism|ate|iti|ous|ive|ize)$/;
/**
* Stem `value`.
*
* @param {string} value
* @returns {string}
*/
function stemmer(value) {
/** @type {boolean} */
var firstCharacterWasLowerCaseY;
/** @type {RegExpMatchArray} */
var match;
value = String(value).toLowerCase();
// Exit early.
if (value.length < 3) {
return value
}
// Detect initial `y`, make sure it never matches.
if (
value.charCodeAt(0) === 121 // Lowercase Y
) {
firstCharacterWasLowerCaseY = true;
value = 'Y' + value.slice(1);
}
// Step 1a.
if (sfxSsesOrIes.test(value)) {
// Remove last two characters.
value = value.slice(0, -2);
} else if (sfxS.test(value)) {
// Remove last character.
value = value.slice(0, -1);
}
// Step 1b.
if ((match = sfxEED.exec(value))) {
if (gt0.test(match[1])) {
// Remove last character.
value = value.slice(0, -1);
}
} else if ((match = sfxEdOrIng.exec(value)) && vowelInStem.test(match[1])) {
value = match[1];
if (sfxAtOrBlOrIz.test(value)) {
// Append `e`.
value += 'e';
} else if (sfxMultiConsonantLike.test(value)) {
// Remove last character.
value = value.slice(0, -1);
} else if (consonantLike.test(value)) {
// Append `e`.
value += 'e';
}
}
// Step 1c.
if ((match = sfxY.exec(value)) && vowelInStem.test(match[1])) {
// Remove suffixing `y` and append `i`.
value = match[1] + 'i';
}
// Step 2.
if ((match = step2.exec(value)) && gt0.test(match[1])) {
value = match[1] + step2list[match[2]];
}
// Step 3.
if ((match = step3.exec(value)) && gt0.test(match[1])) {
value = match[1] + step3list[match[2]];
}
// Step 4.
if ((match = step4.exec(value))) {
if (gt1.test(match[1])) {
value = match[1];
}
} else if ((match = sfxIon.exec(value)) && gt1.test(match[1])) {
value = match[1];
}
// Step 5.
if (
(match = sfxE.exec(value)) &&
(gt1.test(match[1]) ||
(eq1.test(match[1]) && !consonantLike.test(match[1])))
) {
value = match[1];
}
if (sfxLl.test(value) && gt1.test(value)) {
value = value.slice(0, -1);
}
// Turn initial `Y` back to `y`.
if (firstCharacterWasLowerCaseY) {
value = 'y' + value.slice(1);
}
return value
}
var soundex$1 = {exports: {}};
/*
Soundex - v0.2.1 - Node.js & Browser
By Louis T. <[email protected]>
https://github.com/LouisT/node-soundex/
*/
(function (module, exports) {
(function(Setup) {
Setup(function (str,scale,mysql) {
var split = String(str).toUpperCase().replace(/[^A-Z]/g,'').split(''),
map = {BFPV:1,CGJKQSXZ:2,DT:3,L:4,MN:5,R:6},
keys = Object.keys(map).reverse();
var build = split.map(function (letter, index, array) {
for (var num in keys) {
if (keys[num].indexOf(letter) != -1) {
return map[keys[num]];
} } });
if (mysql) {
build = build.filter(function(key){return key;});
} var first = build.splice(0,1)[0];
build = build.filter(function(num, index, array) {
return ((index===0)?num !== first:num !== array[index-1]);
});
var len = build.length,
max = (scale?((max=~~((mysql?len:len*2/3.5)))>3?max:3):3);
return split[0]+(build.join('')+(new Array(max+1).join('0'))).slice(0,max);
});
})((function(fn){module.exports=fn;}));
}(soundex$1));
var Soundex = soundex$1.exports;
/*
Copyright (c) 2015 Hexagon <[email protected]>
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
*/
function stopwords ( stopword ) {
stopword = stopword || {};
return function ( w ) {
if ( stopword[w] === true ) return;
return w;
};
}
function wordforms ( wordform ) {
wordform = wordform || {};
return function ( w ) {
return wordform[w] || w;
};
}
function multiples ( stopword ) {
stopword = stopword || {};
return function ( w ) {
if ( stopword[w] === true ) return;
return w.replace(/([a-zåäö])\1+/gi, "$1");
};
}
function dashes ( stopword ) {
stopword = stopword || {};
return function ( w ) {
if ( stopword[w] === true ) return;
return w.replace(/([^\s]){1}-/, "$1");
};
}
function stripHtml ( ) {
let replaceMap = {
"nbsp": " ",
"gt": ">",
"lt": "<",
"aring": "å",
"Aring": "Å",
"ouml": "ö",
"Ouml": "Ö",
"auml": "ä",
"Auml": "Ä",
"Oslash": "Ø",
"oslash": "ø",
"uuml": "ü",
"Uuml": "Ü",
"quot": "\""
}, result, num;
return function ( field ) {
// Remove link and images-tags, keeping alt values and content
field=field.replace(/<a.*href=(?:"|")(.*?)(?:"|").*?>(.*?)<\/a>/gi, " $2 $1 ");
field=field.replace(/<img.*alt=(?:"|")(.*?)(?:"|").*?>/gi, " $1 ");
// Remove script tags altogether
field=field.replace(/<script.*?>.*?<\/script>/gi, "");
// ... as well as style tags
field=field.replace(/<style.*?>.*?<\/style>/gi, "");
// Remove reaining tags
field=field.replace(/<(?:.|\s)*?>/g, " ");
// Replace numerical HTML-entities
field=field.replace(/&#([0-9]{1,3});/gi, function(match, numStr) {
num = parseInt(numStr, 10);
return String.fromCharCode(num);
});
// Replace textual html-entities using replaceMap
field=field.replace(/&([a-z]{2,5});/gi, function(match, entity) {
// We want to return a space in case the entity isn"t found, hence the if
if( ( result = replaceMap[entity] ) !== undefined) {
return result;
} else {
return " ";
}
});
return field;
};
}
/* Inspired by http://snowball.tartarus.org/algorithms/swedish/stemmer.html */
function swedishStemmer(stopwords) {
let i,
suffix = ["dd", "gd", "nn", "dt", "gt", "mm", "tt"],
endings = ["igheter", "igheten", "ingarna", "iteten", "ingen", "anden", "andet", "orna", "aste", "aren", "arna", "ande", "erna", "arne", "itet", "ndet", "orn","het", "ast", "and", "ade", "ern", "ing", "are", "en", "ad", "an", "ar", "ig", "er", "et", "or", "at", "e", "a"];
stopwords = stopwords || {};
return function (w) {
let word = w.substring(0,2),
r1 = w.substring(2,w.length);
// Dont process stopwords
if (stopwords[w] === true) return w;
if (w.length <=2) return w;
// Remove trailing s
if (r1[r1.length-1]==="s") r1 = r1.substring(0,r1.length-1);
// Return if we didnt find r1
if (r1.length === 0) return word;
// Stage 1a-1
for (i = 0; i < endings.length; i++) {
if ( r1.substring(r1.length-endings[i].length,r1.length).lastIndexOf(endings[i]) > -1 ) {
r1 = r1.substring(0, r1.lastIndexOf(endings[i]));
}
}
// Return of we didnt find r1
if (r1.length === 0) return word;
w = word + r1;
// Dont process stopwords
if (stopwords[w] === true) return w;
// Stage 2, shorten suffixes
for (i = 0; i < suffix.length; i++) {
if (w.substr(w.length - 2, w.length) === suffix[i]) {
w = w.substr(0, w.length - 1);
break;
}
}
return w;
};
}
function englishStemmer ( stopwords ) {
stopwords = stopwords || {};
return function ( w ) {
// Dont process stopwords
if ( stopwords[w] === true ) return w;
return stemmer( w );
};
}
function soundex ( ) {
return function ( w ) {
return Soundex( w );
};
}
const stemmers = {
swedish: swedishStemmer,
english: englishStemmer
};
var processors = /*#__PURE__*/Object.freeze({
__proto__: null,
stemmers: stemmers,
soundex: soundex,
stopwords: stopwords,
wordforms: wordforms,
multiples: multiples,
stripHtml: stripHtml,
dashes: dashes
});
// Helper function for measuring execution time
let time = (function () {
let times = {};
// Node 16, Deno, Browser
if (typeof performance !== "undefined" && performance) {
return function (id) {
let diff;
if (!times[id]) {
times[id] = performance.now();
return;
}
diff = performance.now() - times[id];
times[id] = undefined;
return diff;
};
// Node pre 16
} else {
return function (id) {
let diff;
if (!times[id]) {
times[id] = process.hrtime();
return;
}
diff = process.hrtime(times[id]);
times[id] = undefined;
return (diff[0] * 1e9 + diff[1]) / 1E6;
};
}
}());
// Helper function for option defaults
function defaults (defaults, source) {
let obj,
key;
if (source) {
obj = {};
for (key in defaults) {
if (Object.prototype.hasOwnProperty.call(defaults, key)) {
obj[key] = (source[key] !== void 0) ? source[key] : defaults[key];
}
}
for (key in source) {
if (Object.prototype.hasOwnProperty.call(source, key)) {
if (defaults[key] === void 0 ) {
let err = new Error("Unknown key '" + key + "' in options ");
throw (err);
}
}
}
} else {
obj = defaults;
}
return obj;
}
/*
Copyright (c) 2015 Hexagon <[email protected]>
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.