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=begin
iconv.rb - Pseudo Iconv module
If you don't have iconv but glib2, this library behaves
as Iconv.iconv.
Copyright (C) 2004 Masao Mutoh <mutoh@highway.ne.jp>
You may redistribute it and/or modify it under the same
license terms as Ruby.
$Id: iconv.rb,v 1.3 2006/06/11 15:36:20 mutoh Exp $
=end
begin
require 'iconv.so'
rescue LoadError
begin
require 'glib2'
# Pseudo Iconv module
#
# Provides Iconv.iconv which uses Ruby/GLib(1) functions. This library also required from 'gettext'.
# If you require 'gettext/iconv', Iconv.iconv try to call Ruby/GLib function
# when it doesn't find original Iconv module(iconv.so).
#
# (1) Ruby/GLib is a module which is provided from Ruby-GNOME2 Project.
# You can get binaries for Win32(One-Click Ruby Installer).
# <URL: http://ruby-gnome2.sourceforge.jp/>
module Iconv
module Failure; end
class InvalidEncoding < ArgumentError; include Failure; end
class IllegalSequence < ArgumentError; include Failure; end
class InvalidCharacter < ArgumentError; include Failure; end
def check_glib_version?(major, minor, micro) # :nodoc:
(GLib::BINDING_VERSION[0] > major ||
(GLib::BINDING_VERSION[0] == major &&
GLib::BINDING_VERSION[1] > minor) ||
(GLib::BINDING_VERSION[0] == major &&
GLib::BINDING_VERSION[1] == minor &&
GLib::BINDING_VERSION[2] >= micro))
end
module_function :check_glib_version?
if check_glib_version?(0, 11, 0)
# This is a function equivalent of Iconv.iconv.
# * to: encoding name for destination
# * from: encoding name for source
# * str: strings to be converted
# * Returns: Returns an Array of converted strings.
def iconv(to, from, str)
begin
GLib.convert(str, to, from).split(//)
rescue GLib::ConvertError => e
case e.code
when GLib::ConvertError::NO_CONVERSION
raise InvalidEncoding.new(str)
when GLib::ConvertError::ILLEGAL_SEQUENCE
raise IllegalSequence.new(str)
else
raise InvalidCharacter.new(str)
end
end
end
else
def iconv(to, from, str) # :nodoc:
begin
GLib.convert(str, to, from).split(//)
rescue
raise IllegalSequence.new(str)
end
end
end
module_function :iconv
end
rescue LoadError
module Iconv
module_function
def iconv(to, from, str) # :nodoc:
warn "Iconv was not found." if $DEBUG
str.split(//)
end
end
end
end
if __FILE__ == $0
puts Iconv.iconv("EUC-JP", "UTF-8", "ほげ").join
begin
puts Iconv.iconv("EUC-JP", "EUC-JP", "ほげ").join
rescue Iconv::Failure
puts $!
puts $!.class
end
end
|
