module Addressable::IDNA

Constants

ACE_MAX_LENGTH

ACE_PREFIX

COMPOSITION_TABLE

PUNYCODE_BASE

PUNYCODE_DAMP

PUNYCODE_DELIMITER

PUNYCODE_INITIAL_BIAS

PUNYCODE_INITIAL_N

PUNYCODE_MAXINT

PUNYCODE_PRINT_ASCII

PUNYCODE_SKEW

PUNYCODE_TMAX

PUNYCODE_TMIN

UNICODE_DATA

This is a sparse Unicode table. Codepoints without entries are assumed to have the value: [0, 0, nil, nil, nil, nil, nil]

UNICODE_DATA_CANONICAL

UNICODE_DATA_COMBINING_CLASS

UNICODE_DATA_COMPATIBILITY

UNICODE_DATA_EXCLUSION

UNICODE_DATA_LOWERCASE

UNICODE_DATA_TITLECASE

UNICODE_DATA_UPPERCASE

UNICODE_MAX_LENGTH

UNICODE_TABLE

This module is loosely based on idn_actionmailer by Mick Staugaard, the unicode library by Yoshida Masato, and the punycode implementation by Kazuhiro Nishiyama. Most of the code was copied verbatim, but some reformatting was done, and some translation from C was done.

Without their code to work from as a base, we’d all still be relying on the presence of libidn. Which nobody ever seems to have installed.

Original sources: github.com/staugaard/idn_actionmailer www.yoshidam.net/Ruby.html#unicode rubyforge.org/frs/?group_id=2550

UTF8_REGEX

UTF8_REGEX_MULTIBYTE

Public Class Methods

to_ascii (value)

# File lib/addressable/idna/native.rb, line 42
def self.to_ascii(value)
  value.to_s.split('.', -1).map do |segment|
    if segment.size > 0 && segment.size < 64
      IDN::Idna.toASCII(segment, IDN::Idna::ALLOW_UNASSIGNED)
    elsif segment.size >= 64
      segment
    else
      ''
    end
  end.join('.')
end

to_unicode (value)

# File lib/addressable/idna/native.rb, line 54
def self.to_unicode(value)
  value.to_s.split('.', -1).map do |segment|
    if segment.size > 0 && segment.size < 64
      IDN::Idna.toUnicode(segment, IDN::Idna::ALLOW_UNASSIGNED)
    elsif segment.size >= 64
      segment
    else
      ''
    end
  end.join('.')
end

unicode_normalize_kc (value)

@deprecated Use {String#unicode_normalize(:nfkc)} instead

# File lib/addressable/idna/native.rb, line 34
def unicode_normalize_kc(value)
  value.to_s.unicode_normalize(:nfkc)
end