Retext-double-metaphone NPM

retext-double-metaphone

Retext implementation of the Double Metaphone algorithm.

Installation

npm install retext-double-metaphone

retext-double-metaphone is also available for bower, component, and duo, and as an AMD, CommonJS, and globals module, uncompressed and compressed.

Usage

var retext = require('retext');
var inspect = require('unist-util-inspect');
var doubleMetaphone = require('retext-double-metaphone');

retext().use(doubleMetaphone).use(function () {
    return function (cst) {
        console.log(inspect(cst));
    };
}).process('A simple English sentence.');

Yields:

RootNode[1]
└─ ParagraphNode[1]
   └─ SentenceNode[8]
      ├─ WordNode[1] [data={"phonetics":["A","A"]}]
      │  └─ TextNode: 'A'
      ├─ WhiteSpaceNode: ' '
      ├─ WordNode[1] [data={"phonetics":["SMPL","SMPL"]}]
      │  └─ TextNode: 'simple'
      ├─ WhiteSpaceNode: ' '
      ├─ WordNode[1] [data={"phonetics":["ANKLX","ANLX"]}]
      │  └─ TextNode: 'English'
      ├─ WhiteSpaceNode: ' '
      ├─ WordNode[1] [data={"phonetics":["SNTNS","SNTNS"]}]
      │  └─ TextNode: 'sentence'
      └─ PunctuationNode: '.'

You can also combine it with a stemmer (such as retext-porter-stemmer or retext-lancaster-stemmer).

var retext = require('retext');
var inspect = require('unist-util-inspect');
var doubleMetaphone = require('retext-double-metaphone');
var stemmer = require('retext-porter-stemmer');

retext().use(stemmer).use(doubleMetaphone).use(function () {
    return function (cst) {
        console.log(inspect(cst));
    };
}).process('A simple English sentence.');

Yields:

RootNode[1]
└─ ParagraphNode[1]
   └─ SentenceNode[6]
      ├─ WordNode[1] [data={"stem":"a","phonetics":["A","A"],"stemmedPhonetics":["A","A"]}]
      │  └─ TextNode: 'A'
      ├─ WhiteSpaceNode: ' '
      ├─ WordNode[1] [data={"stem":"detest","phonetics":["TTSTPL","TTSTPL"],"stemmedPhonetics":["TTST","TTST"]}]
      │  └─ TextNode: 'detestable'
      ├─ WhiteSpaceNode: ' '
      ├─ WordNode[1] [data={"stem":"paragraph","phonetics":["PRKRF","PRKRF"],"stemmedPhonetics":["PRKRF","PRKRF"]}]
      │  └─ TextNode: 'paragraph'
      └─ PunctuationNode: '.'

API

None, retext-double-metaphone automatically detects the phonetics of each WordNode (using wooorm/double-metaphone), and stores the phonetics in node.data.phonetics. If a stemmer is used, the stemmed phonetics are stored in node.data.stemmedPhonetics.