IdnaJS

Download source code: ZIP file

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A JavaScript implementation of IDNA 2008 and Unicode normalization.

Installation

Run the following code, assuming you have npm installed:

 npm install peteroupc/IdnaJS

Usage

 var idna=require("idnajs"),
       Normalizer=idna.Normalizer,
       Idna=idna.Idna;

Normalizer.IsNormalized(string[, form])

Returns whether the given string is in a Unicode normalization form. The form can be Normalization.NFC, Normalization.NFD, Normalization.NFKC, or Normalization.NFKD. If not given, NFC is assumed. Returns false if the string is null or contains an unpaired surrogate code point.

Normalizer.Normalize(string[, form])

Converts the given string is in a Unicode normalization form. The form can be Normalization.NFC, Normalization.NFD, Normalization.NFKC, or Normalization.NFKD. If not given, NFC is assumed. Throws an error if the string is null. Replaces unpaired surrogate code points in the string with U+FFFD (the replacement character).

Idna.EncodeDomainName(string)

Tries to encode each label of the given domain name into Punycode. Labels where this is not possible remain unchanged. The labels are not checked for validity beyond the Punycode checks.

Idna.IsValidDomainName(string[, lookupRules])

Checks whether a domain name is valid under IDNA 2008 (the second version of Internationalized Domain Names in Applications). If lookupRules is true, uses somewhat more relaxed rules to be followed before looking up a domain name in the DNS; if lookupRules is omitted, the value false is assumed.

Source Code

Source code is available in the project page.

About

Written by Peter O.

See the LICENSE file for license information.