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support ja and trimmer ja, not jp #3

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support ja and trimmer ja, not jp #3

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45cc52e
rename jp (country code) to ja (lang code)
hatappo Nov 13, 2021
7153fd2
add ja support and trimmer-ja
hatappo Nov 13, 2021
c66c5c0
add jp support only for backward compatibility
hatappo Nov 13, 2021
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134 changes: 134 additions & 0 deletions lunr.ja.js
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Original file line number Diff line number Diff line change
@@ -0,0 +1,134 @@
/*!
* Lunr languages, `Japanese` language
* https://github.com/MihaiValentin/lunr-languages
*
* Copyright 2014, Chad Liu
* http://www.mozilla.org/MPL/
*/
/*!
* based on
* Snowball JavaScript Library v0.3
* http://code.google.com/p/urim/
* http://snowball.tartarus.org/
*
* Copyright 2010, Oleg Mazko
* 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 (typeof define === 'function' && define.amd) {
// AMD. Register as an anonymous module.
define(factory)
} else if (typeof exports === 'object') {
/**
* Node. Does not work with strict CommonJS, but
* only CommonJS-like environments that support module.exports,
* like Node.
*/
module.exports = factory()
} else {
// Browser globals (root is window)
factory()(root.lunr);
}
}(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 function(lunr) {
/* throw error if lunr is not yet included */
if ('undefined' === typeof lunr) {
throw new Error('Lunr is not present. Please include / require Lunr before this script.');
}

/* throw error if lunr stemmer support is not yet included */
if ('undefined' === typeof lunr.stemmerSupport) {
throw new Error('Lunr stemmer support is not present. Please include / require Lunr stemmer support before this script.');
}

/* register specific locale function */
lunr.ja = function() {
this.pipeline.reset();
this.pipeline.add(
lunr.ja.trimmer,
lunr.ja.stopWordFilter,
lunr.ja.stemmer
);
// change the tokenizer for japanese one
lunr.tokenizer = lunr.ja.tokenizer;
};
var segmenter = new TinySegmenter(); // インスタンス生成

lunr.ja.tokenizer = function (obj) {
if (!arguments.length || obj == null || obj == undefined) return []
if (Array.isArray(obj)) return obj.map(function (t) { return t.toLowerCase() })

var str = obj.toString().replace(/^\s+/, '')

for (var i = str.length - 1; i >= 0; i--) {
if (/\S/.test(str.charAt(i))) {
str = str.substring(0, i + 1)
break
}
}


var segs = segmenter.segment(str); // 単語の配列が返る
return segs.filter(function (token) {
return !!token
})
.map(function (token) {
return token
})
}

/* lunr stemmer function */
lunr.ja.stemmer = (function() {

/* TODO japanese stemmer */
return function(word) {
return word;
}
})();

lunr.Pipeline.registerFunction(lunr.ja.stemmer, 'stemmer-ja');

/* lunr trimmer function */
lunr.ja.wordCharacters = "一二三四五六七八九十百千万億兆一-龠々〆ヵヶぁ-んァ-ヴーｱ-ﾝﾞa-zA-Zａ-ｚＡ-Ｚ0-9０-９";
lunr.ja.trimmer = lunr.trimmerSupport.generateTrimmer(lunr.ja.wordCharacters);
lunr.Pipeline.registerFunction(lunr.ja.trimmer, 'trimmer-ja');

/* stop word filter function */
lunr.ja.stopWordFilter = function(token) {
if (lunr.ja.stopWordFilter.stopWords.indexOf(token) === -1) {
return token;
}
};

lunr.ja.stopWordFilter.stopWords = new lunr.SortedSet();
lunr.ja.stopWordFilter.stopWords.length = 45;

// The space at the beginning is crucial: It marks the empty string
// as a stop word. lunr.js crashes during search when documents
// processed by the pipeline still contain the empty string.
// stopword for japanese is from http://www.ranks.nl/stopwords/japanese
lunr.ja.stopWordFilter.stopWords.elements = ' これ それ あれ この その あの ここ そこ あそこ こちら どこ だれ なに なん 何 私 貴方 貴方方 我々 私達 あの人 あのかた 彼女 彼 です あります おります います は が の に を で え から まで より も どの と し それで しかし'.split(' ');
lunr.Pipeline.registerFunction(lunr.ja.stopWordFilter, 'stopWordFilter-ja');

// alias ja => jp for backward-compatibility.
// jp is the country code, while ja is the language code
// a new lunr.ja.js has been created, but in order to
// keep the backward compatibility, we'll leave the lunr.jp.js
// here for a while, and just make it use the new lunr.ja.js
lunr.jp = lunr.ja;
lunr.Pipeline.registerFunction(lunr.jp.stemmer, 'stemmer-jp');
lunr.Pipeline.registerFunction(lunr.jp.trimmer, 'trimmer-jp');
lunr.Pipeline.registerFunction(lunr.jp.stopWordFilter, 'stopWordFilter-jp');
};
}))
123 changes: 5 additions & 118 deletions lunr.jp.js
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Original file line number Diff line number Diff line change
@@ -1,118 +1,5 @@
/*!
* Lunr languages, `Japanese` language
* https://github.com/MihaiValentin/lunr-languages
*
* Copyright 2014, Chad Liu
* http://www.mozilla.org/MPL/
*/
/*!
* based on
* Snowball JavaScript Library v0.3
* http://code.google.com/p/urim/
* http://snowball.tartarus.org/
*
* Copyright 2010, Oleg Mazko
* 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 (typeof define === 'function' && define.amd) {
// AMD. Register as an anonymous module.
define(factory)
} else if (typeof exports === 'object') {
/**
* Node. Does not work with strict CommonJS, but
* only CommonJS-like environments that support module.exports,
* like Node.
*/
module.exports = factory()
} else {
// Browser globals (root is window)
factory()(root.lunr);
}
}(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 function(lunr) {
/* throw error if lunr is not yet included */
if ('undefined' === typeof lunr) {
throw new Error('Lunr is not present. Please include / require Lunr before this script.');
}

/* throw error if lunr stemmer support is not yet included */
if ('undefined' === typeof lunr.stemmerSupport) {
throw new Error('Lunr stemmer support is not present. Please include / require Lunr stemmer support before this script.');
}

/* register specific locale function */
lunr.jp = function() {
this.pipeline.reset();
this.pipeline.add(
lunr.jp.stopWordFilter,
lunr.jp.stemmer
);
// change the tokenizer for japanese one
lunr.tokenizer = lunr.jp.tokenizer;
};
var segmenter = new TinySegmenter(); // インスタンス生成

lunr.jp.tokenizer = function (obj) {
if (!arguments.length || obj == null || obj == undefined) return []
if (Array.isArray(obj)) return obj.map(function (t) { return t.toLowerCase() })

var str = obj.toString().replace(/^\s+/, '')

for (var i = str.length - 1; i >= 0; i--) {
if (/\S/.test(str.charAt(i))) {
str = str.substring(0, i + 1)
break
}
}


var segs = segmenter.segment(str); // 単語の配列が返る
return segs.filter(function (token) {
return !!token
})
.map(function (token) {
return token
})
}

/* lunr stemmer function */
lunr.jp.stemmer = (function() {

/* TODO japanese stemmer */
return function(word) {
return word;
}
})();

lunr.Pipeline.registerFunction(lunr.jp.stemmer, 'stemmer-jp');

/* stop word filter function */
lunr.jp.stopWordFilter = function(token) {
if (lunr.jp.stopWordFilter.stopWords.indexOf(token) === -1) {
return token;
}
};

lunr.jp.stopWordFilter.stopWords = new lunr.SortedSet();
lunr.jp.stopWordFilter.stopWords.length = 45;

// The space at the beginning is crucial: It marks the empty string
// as a stop word. lunr.js crashes during search when documents
// processed by the pipeline still contain the empty string.
// stopword for japanese is from http://www.ranks.nl/stopwords/japanese
lunr.jp.stopWordFilter.stopWords.elements = ' これ それ あれ この その あの ここ そこ あそこ こちら どこ だれ なに なん 何 私 貴方 貴方方 我々 私達 あの人 あのかた 彼女 彼 です あります おります います は が の に を で え から まで より も どの と し それで しかし'.split(' ');
lunr.Pipeline.registerFunction(lunr.jp.stopWordFilter, 'stopWordFilter-jp');
};
}))
// jp is the country code, while ja is the language code
// a new lunr.ja.js has been created, but in order to
// keep the backward compatibility, we'll leave the lunr.jp.js
// here for a while, and just make it use the new lunr.ja.js
module.exports = require('./lunr.ja');