/tools/Ruby/lib/ruby/1.8/rexml/encoding.rb
http://github.com/agross/netopenspace · Ruby · 71 lines · 63 code · 3 blank · 5 comment · 13 complexity · 34320e328a5a2290519feabf5ebdb583 MD5 · raw file
- # -*- mode: ruby; ruby-indent-level: 2; indent-tabs-mode: t; tab-width: 2 -*- vim: sw=2 ts=2
- module REXML
- module Encoding
- @encoding_methods = {}
- def self.register(enc, &block)
- @encoding_methods[enc] = block
- end
- def self.apply(obj, enc)
- @encoding_methods[enc][obj]
- end
- def self.encoding_method(enc)
- @encoding_methods[enc]
- end
- # Native, default format is UTF-8, so it is declared here rather than in
- # an encodings/ definition.
- UTF_8 = 'UTF-8'
- UTF_16 = 'UTF-16'
- UNILE = 'UNILE'
- # ID ---> Encoding name
- attr_reader :encoding
- def encoding=( enc )
- old_verbosity = $VERBOSE
- begin
- $VERBOSE = false
- enc = enc.nil? ? nil : enc.upcase
- return false if defined? @encoding and enc == @encoding
- if enc and enc != UTF_8
- @encoding = enc
- raise ArgumentError, "Bad encoding name #@encoding" unless @encoding =~ /^[\w-]+$/
- @encoding.untaint
- begin
- require 'rexml/encodings/ICONV.rb'
- Encoding.apply(self, "ICONV")
- rescue LoadError, Exception
- begin
- enc_file = File.join( "rexml", "encodings", "#@encoding.rb" )
- require enc_file
- Encoding.apply(self, @encoding)
- rescue LoadError => err
- puts err.message
- raise ArgumentError, "No decoder found for encoding #@encoding. Please install iconv."
- end
- end
- else
- @encoding = UTF_8
- require 'rexml/encodings/UTF-8.rb'
- Encoding.apply(self, @encoding)
- end
- ensure
- $VERBOSE = old_verbosity
- end
- true
- end
- def check_encoding str
- # We have to recognize UTF-16, LSB UTF-16, and UTF-8
- if str[0] == 0xfe && str[1] == 0xff
- str[0,2] = ""
- return UTF_16
- elsif str[0] == 0xff && str[1] == 0xfe
- str[0,2] = ""
- return UNILE
- end
- str =~ /^\s*<\?xml\s+version\s*=\s*(['"]).*?\1\s+encoding\s*=\s*(["'])(.*?)\2/um
- return $3.upcase if $3
- return UTF_8
- end
- end
- end