dictdb

dictionary database for language translation

example

First populate the database:

var parse = require('parse-dictd');
var through = require('through2');
var fs = require('fs');
var gunzip = require('zlib').createGunzip;
var minimist = require('minimist');
 
var db = require('level')('/tmp/dict.db');
var ddb = require('dictdb')(db);
 
var argv = minimist(process.argv.slice(2));
 
var dstream = fs.createReadStream(argv._[0]).pipe(gunzip());
var istream = fs.createReadStream(argv._[1]);
 
parse(dstream, istream).pipe(through.obj(function (row, enc, next) {
    var a = { word: fix(row.from), lang: argv.from };
    var b = { word: row.to.map(fix), lang: argv.to };
    ddb.link(a, b);
    next();
}));
 
function fix (w) { return w.replace(/^\w+\.\s*|;$/g,'') }

$ node import.js --from en --to zh /usr/share/dictd/stardic.{dict.dz,index}

then you can query the dictionary database:

var minimist = require('minimist');
var db = require('level')('/tmp/dict.db');
var ddb = require('dictdb')(db);
var argv = minimist(process.argv.slice(2));
 
var q = {
    word: argv._.join(' '),
    from: argv.from,
    to: argv.to
};
ddb.get(q, function (err, results) {
    if (err) return console.error(err);
    results.forEach(function (r) {
        console.log(r.word);
    });
});

$ node get.js --from en --to zh robot
机械人
机械般工作的人
自动机械

methods

var dictdb = require('dictdb')

var ddb = dictdb(db)

Create a dictdb instance ddb from a leveldb handle db.

ddb.link(a, b, cb)

Link a.word written in a.lang to b.word written in b.lang and vice-versa.

a.word and b.word can be strings or arrays of strings.

The optional callback cb(err) fires with any errors.

var r = ddb.get(query, cb)

Return an object stream r with the results of query:

• query.word - word to search for
• query.from - language that query.word is written in
• query.to - language to translate query.word into

r pushes objects with lang and word properties.

install

With npm do:

npm install dictdb

license

MIT