add tag v1_8_5_54

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/tags/v1_8_5_54@12952 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 64 insertions, 0 deletions

diff --git a/ruby_1_8_5/lib/rexml/encoding.rb b/ruby_1_8_5/lib/rexml/encoding.rb
new file mode 100644
index 0000000000..644957439e
--- /dev/null
+++ b/ruby_1_8_5/lib/rexml/encoding.rb
@@ -0,0 +1,64 @@
+# -*- 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
+        $VERBOSE = false
+        return if defined? @encoding and enc == @encoding
+        if enc and enc != UTF_8
+          @encoding = enc.upcase
+          begin
+            require 'rexml/encodings/ICONV.rb'
+            Encoding.apply(self, "ICONV")
+          rescue LoadError, Exception => err
+            raise ArgumentError, "Bad encoding name #@encoding" unless @encoding =~ /^[\w-]+$/
+            @encoding.untaint 
+            enc_file = File.join( "rexml", "encodings", "#@encoding.rb" )
+            begin
+              require enc_file
+              Encoding.apply(self, @encoding)
+            rescue LoadError
+              puts $!.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
+    end
+
+    def check_encoding str
+      # We have to recognize UTF-16, LSB UTF-16, and UTF-8
+      return UTF_16 if str[0] == 254 && str[1] == 255
+      return UNILE if str[0] == 255 && str[1] == 254
+      str =~ /^\s*<?xml\s*version=(['"]).*?\2\s*encoding=(["'])(.*?)\2/um
+      return $1.upcase if $1
+      return UTF_8
+    end
+  end
+end