55 lines
1.3 KiB
Markdown
55 lines
1.3 KiB
Markdown
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# unhomoglyph
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[](https://travis-ci.org/nodeca/unhomoglyph)
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[](https://www.npmjs.org/package/unhomoglyph)
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> Replace all homoglyphs with base characters. Useful to detect similar strings.
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For example, to prohibit register similar looking nicknames at websites.
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Data source - [Recommended confusable mapping for IDN](http://www.unicode.org/Public/security/latest/confusables.txt), v13.0.0.
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__Note!__ Text after transform is NOT intended be read by humans. For example,
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`m` will be transformed to `r` + `n`. Goal is to compare 2 strings after
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transform, to check if sources looks similar or not. If sources look similar,
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then transformed strings are equal.
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## Install
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```bash
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npm install unhomoglyph --save
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```
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## Example
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```js
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const unhomoglyph = require('unhomoglyph');
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console.log(unhomoglyph('AΑАᎪᗅᴀꓮ')); // => AAAAAAA
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console.log(unhomoglyph('m')); // => rn (r + n)
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//
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// Compare nicknames
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//
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const username1 = 'm';
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const username2 = 'rn';
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if (unhomoglyph(username1) === unhomoglyph(username2)) {
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console.log(`"${username1}" and "${username2} look similar`);
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}
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```
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## Update
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```bash
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npm run update
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```
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## License
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[MIT](https://github.com/nodeca/unhomoglyph/blob/master/LICENSE)
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