diff options
Diffstat (limited to 'lib/yaml/encoding.rb')
| -rw-r--r-- | lib/yaml/encoding.rb | 123 |
1 files changed, 0 insertions, 123 deletions
diff --git a/lib/yaml/encoding.rb b/lib/yaml/encoding.rb deleted file mode 100644 index 59491b53b7..0000000000 --- a/lib/yaml/encoding.rb +++ /dev/null @@ -1,123 +0,0 @@ -# -# Handle Unicode-to-Internal conversion -# - -module YAML - - # - # Encodings ( $-K to ICONV ) - # - CHARSETS = { - 'NONE' => 'LATIN1', - 'ASCII' => 'US-ASCII', - 'UTF-8' => 'UTF-8', - 'EUC' => 'EUC-JP', - 'SJIS' => 'SHIFT-JIS' - } - - # - # YAML documents can be in UTF-8, UTF-16 or UTF-32 - # So let's read and write in Unicode - # - - @@unicode = false - begin - require 'iconv' - DEFAULTS[:Encoding] = :Utf8 - rescue LoadError - end - - def YAML.unicode; @@unicode; end - def YAML.unicode=( bool ); @@unicode = bool; end - - # - # Unicode conversion - # - - def YAML.utf_to_internal( str, from_enc ) - return unless str - to_enc = CHARSETS[$-K] - case from_enc - when :Utf32 - Iconv.iconv( to_enc, 'UTF-32', str )[0] - when :Utf16 - Iconv.iconv( to_enc, 'UTF-16', str )[0] - when :Utf8 - Iconv.iconv( to_enc, 'UTF-8', str )[0] - when :None - str - else - raise YAML::Error, ERROR_UNSUPPORTED_ENCODING % from_enc.inspect - end - end - - def YAML.internal_to_utf( str, to_enc ) - return unless str - from_enc = CHARSETS[$-K] - case to_enc - when :Utf32 - Iconv.iconv( 'UTF-32', from_enc, str )[0] - when :Utf16 - Iconv.iconv( 'UTF-16', from_enc, str )[0] - when :Utf8 - Iconv.iconv( 'UTF-8', from_enc, str )[0] - when :None - str - else - raise YAML::Error, ERROR_UNSUPPORTED_ENCODING % to_enc.inspect - end - end - - def YAML.sniff_encoding( str ) - unless YAML::unicode - :None - else - case str - when /^\x00\x00\xFE\xFF/ # UTF-32 - :Utf32 - when /^\xFE\xFF/ # UTF-32BE - :Utf16 - else - :Utf8 - end - end - end - - def YAML.enc_separator( enc ) - case enc - when :Utf32 - "\000\000\000\n" - when :Utf16 - "\000\n" - when :Utf8 - "\n" - when :None - "\n" - else - raise YAML::Error, ERROR_UNSUPPORTED_ENCODING % enc.inspect - end - end - - # - # Escape the string, condensing common escapes - # - def YAML.escape( value ) - value.gsub( /\\/, "\\\\\\" ).gsub( /"/, "\\\"" ).gsub( /([\x00-\x1f])/ ) { |x| ESCAPES[ x.unpack("C")[0] ] } - end - - # - # Unescape the condenses escapes - # - def YAML.unescape( value ) - value.gsub( /\\(?:([nevbr\\fartz])|0?x([0-9a-fA-F]{2})|u([0-9a-fA-F]{4}))/ ) { |x| - if $3 - ["#$3".hex ].pack('U*') - elsif $2 - [$2].pack( "H2" ) - else - UNESCAPES[$1] - end - } - end - -end |