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https://github.com/anpandu/nalapa

NodeJS NLP Library for Bahasa Indonesia.
https://github.com/anpandu/nalapa

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NodeJS NLP Library for Bahasa Indonesia.

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# NALAPA

Collection of NodeJS NLP Library for Bahasa Indonesia.



[![NPM version][npm-image]][npm-url] [![Build Status][travis-image]][travis-url] [![Dependency Status][daviddm-image]][daviddm-url]



## Installation



Install node modules with npm:



```

npm install --save nalapa

```



## API



### Tokenizer

```js

Tokenizer = require('nalapa').tokenizer;



Tokenizer.tokenize("Hello world, my name is Alice...")

// ['Hello', 'world', ',', 'my', 'name', 'is', 'Alice', '.', '.', '.']



Tokenizer.tokenize("Monday, (1/11). I have 1.000 rupiah.")

// [ 'Monday', ',', '(', '1/11', ')', '.', 'I', 'have', '1.000', 'rupiah', '.' ]



Tokenizer.splitSentence("Hello world, my name is Alice! I live in Bandung. Jakarta kebanjiran gara-gara hujan - tugas kuliah sulit? Baiklah.");

/*

[

  "Hello world, my name is Alice",

  "I live in Bandung",

  "Jakarta kebanjiran gara-gara hujan",

  "tugas kuliah sulit",

  "Baiklah"

]

*/



var text = "Seorang remaja berinisal HAS (15) ditangkap aparat Polres Magelang lantaran diduga ..."

Tokenizer.getQuotations(text);

/*

[

  "\"Mereka beraksi siang hari, sekitar pukul 13.00 WIB akhir pekan lalu. Saat itu korban terlihat sendirian,\" kata Zain dalam gelar perkara, Selasa (16/2/2016).", 

  "\"Korban mengenali ponsel yang dipegang saksi adalah miliknya, baru kemudian ia melapor ke Polsek Kajoran. Saksi tersebut mengatakan kalau ponsel tersebut dibeli dari tetangga seharga Rp 250.000,\" papar mantan Kapolsek Metro Tamansari, Jakarta itu.", 

  "\"Kami masih koordinasi dengan pihak terkait apakah pelaku HAS ini akan menjalani diversi atau tidak,\" katanya.", 

  "\"Ponselnya saya jual lagi, uangnya buat bantu mertua yang mau nikah lagi. Saya dulu sales di Sumatera tapi sekarang nganggur,\" ucap bapak dari dua anak ini."

]

*/



```



### Word

```js

Word = require('nalapa').word;



// stopword

word.isStopword("adalah") // true

word.isStopword("Indonesia") // false



// basic word properties

word.isBasicWord('masak')  // true

word.isAdjective('abadi')  // true

word.isAdverb('adakala')  // true

word.isNum('wahid')  // true

word.isPre('adapun')  // true

word.isPron('aku')  // true

word.isVerb('ambil')  // true

word.isBasicWord('wrongxxx') // false



// stemming

word.stem('memberikan') // beri

word.stem('meong') // meong



// stemming for prefix, suffix, or confix

word.stemPrefix('penyadap') // sadap

word.stemSuffix('minuman') // minum

word.stemConfix('memberikan') // beri



```



### Cleaner

```js

Cleaner = require('nalapa').cleaner;



Cleaner.isASCII("abc123");      /* true */

Cleaner.isASCII("abc_-8+");     /* true */

Cleaner.isASCII("ابت");         /* false */



Cleaner.isAlphaNumeric("abc123");       /* true */

Cleaner.isAlphaNumeric("abc_-8+");      /* false */

Cleaner.isAlphaNumeric("ابت");          /* false */



Cleaner.removeNonASCII("abc123");       /* "abc123" */

Cleaner.removeNonASCII("abc_-8+");      /* "abc_-8+" */

Cleaner.removeNonASCII("ابت");          /* "" */



Cleaner.removeNonAlphaNumeric("abc123");        /* abc123 */

Cleaner.removeNonAlphaNumeric("abc_-8+");       /* abc8 */

Cleaner.removeNonAlphaNumeric("ابت");           /* "" */



Cleaner.removeHTMLTags("
some long paragraph
");          /* "some long paragraph" */



```



### BIO Label

```js

BIOLabel = require('nalapa').BIOLabel;



var data = {

  text : 'i eat nasi goreng for breakfast, lunch, and dinner',

  labels : [

    { label : 'food', words : ['nasi goreng'] }

  ]

}



BIOLabel.label(data);

/*

{

  tokens : ['i', 'eat', 'nasi', 'goreng', 'for', 'breakfast', ',', 'lunch', ',', 'and', 'dinner'],

  labels : [['other'], ['other'], ['b_food'], ['i_food'], ['other'], ['other'], ['other'], ['other'], ['other'], ['other'], ['other']]

}

*/ 



var data2 = {

  text : 'i eat nasi goreng at midnight too',

  labels : [

    { label : 'who', words : ['i'] },

    { label : 'what', words : ['i eat nasi goreng'] }

  ]

}



BIOLabel.label(data2);

/*

{

  tokens : ['i', 'eat', 'nasi', 'goreng', 'at', 'midnight', 'too'],

  labels : [['b_who', 'b_what'], ['i_what'], ['i_what'], ['i_what'], ['other'], ['other'], ['other']]

}

*/



var data3 = {

  text : 'if you are reading this, you are reading this',

  labels : [

    { label : 'person', words : ['you'] },

    { label : 'activity', words : ['you are reading'] }

  ]

}



BIOLabel.label(data3);

/*

{ 

  tokens: ['if', 'you', 'are', 'reading', 'this', ',', 'you', 'are', 'reading', 'this'],

  labels: [['other'], ['b_person', 'b_activity'], ['i_activity'], ['i_activity'], ['other'], ['other'], ['b_person', 'b_activity'], ['i_activity'], ['i_activity'], ['other']]

}

*/



var data4 = {

  text : 'friday, saturday, and sunday morning',

  labels : [

    { label : 'day_name', words : ['friday', 'saturday', 'sunday'] },

    { label : 'time', words : ['sunday morning'] }

  ]

}



BIOLabel.label(data4);

/*

{

  tokens : [ 'friday', ',', 'saturday', ',', 'and', 'sunday', 'morning' ],

  labels : [ ['b_day_name'], ['other'], ['b_day_name'], ['other'], ['other'], ['b_day_name', 'b_time'], ['i_time'] ]

}

*/



// get label from sequence of BIOLabel

var tags = [['other', 'other', 'b_food', 'i_food', 'other', 'other', 'other', 'other', 'other', 'other', 'other'], ['b_action', 'i_action', 'i_action', 'i_action', 'other', 'other', 'other']]

var tokens = [['i', 'eat', 'nasi', 'goreng', 'for', 'breakfast', ',', 'lunch', ',', 'and', 'dinner'], ['i', 'eat', 'nasi', 'goreng', 'at', 'midnight', 'too']]

BIOLabel.getLabelFromSequence(tags, tokens)

/*

{ 

  food: [ 'nasi goreng' ],

  action: [ 'i eat nasi goreng' ]

}

*/



```



### Feature

```js

feature = require('nalapa').feature;



feature.isEquals('hehe', 'hehe') // true

feature.isEquals('hehe', 'hoho') // false



feature.isAllCapital('ABCD') // true

feature.isAllCapital('Abcd') // false



feature.isBeginsWithCapital('ABc') // true

feature.isBeginsWithCapital('aBC') // false



feature.isContainsNumber('he1he') // true

feature.isContainsNumber('hehe') // false



feature.isContainsYear('1985haihai') // true

feature.isContainsYear('hoho') // false

feature.isContainsYear('666') // false



feature.isRomanNumber('MCMXCII') // true

feature.isRomanNumber('MCMXCIIPOPO') // false



feature.isContainsNonAlphanumeric('abc') // false

feature.isContainsNonAlphanumeric('@bc') // true



feature.isContainsPunctuation('abcd;') // true

feature.isContainsPunctuation(';') // true

feature.isContainsPunctuation('abcd') // false



```



## Testing



From the repo root:



```

npm test

```



## License



MIT © [Ananta Pandu](anpandu.com)



[npm-image]: https://badge.fury.io/js/nalapa.svg

[npm-url]: https://npmjs.org/package/nalapa

[travis-image]: https://travis-ci.org/anpandu/nalapa.svg?branch=master

[travis-url]: https://travis-ci.org/anpandu/nalapa

[daviddm-image]: https://david-dm.org/anpandu/nalapa.svg?theme=shields.io

[daviddm-url]: https://david-dm.org/anpandu/nalapa