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Iconv

Public Class Methods

easy_decode(target, orig_charset, text) click to toggle source
# File lib/sup/util.rb, line 683
def self.easy_decode target, orig_charset, text
  if text.respond_to? :force_encoding
    text = text.dup
    text.force_encoding Encoding::BINARY
  end
  charset = case orig_charset
    when /UTF[-_ ]?8/ then "utf-8"
    when /(iso[-_ ])?latin[-_ ]?1$/ then "ISO-8859-1"
    when /iso[-_ ]?8859[-_ ]?15/ then 'ISO-8859-15'
    when /unicode[-_ ]1[-_ ]1[-_ ]utf[-_]7/ then "utf-7"
    when /^euc$/ then 'EUC-JP' # XXX try them all?
    when /^(x-unknown|unknown[-_ ]?8bit|ascii[-_ ]?7[-_ ]?bit)$/ then 'ASCII'
    else orig_charset
  end

  begin
    returning(Iconv.iconv(target, charset, text + " ").join[0 .. -2]) { |str| str.check }
  rescue Errno::EINVAL, Iconv::InvalidEncoding, Iconv::InvalidCharacter, Iconv::IllegalSequence, String::CheckError
    debug "couldn't transcode text from #{orig_charset} (#{charset}) to #{target}) (#{text[0 ... 20].inspect}...) (got #{$!.message} (#{$!.class}))"
    text.ascii
  end
end

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