diff options
Diffstat (limited to 'ruby_1_8_6/lib/yaml/stringio.rb')
| -rw-r--r-- | ruby_1_8_6/lib/yaml/stringio.rb | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/ruby_1_8_6/lib/yaml/stringio.rb b/ruby_1_8_6/lib/yaml/stringio.rb new file mode 100644 index 0000000000..8ad949fa2b --- /dev/null +++ b/ruby_1_8_6/lib/yaml/stringio.rb @@ -0,0 +1,83 @@ +# +# Limited StringIO if no core lib is available +# +begin +require 'stringio' +rescue LoadError + # StringIO based on code by MoonWolf + class StringIO + def initialize(string="") + @string=string + @pos=0 + @eof=(string.size==0) + end + def pos + @pos + end + def eof + @eof + end + alias eof? eof + def readline(rs=$/) + if @eof + raise EOFError + else + if p = @string[@pos..-1]=~rs + line = @string[@pos,p+1] + else + line = @string[@pos..-1] + end + @pos+=line.size + @eof =true if @pos==@string.size + $_ = line + end + end + def rewind + seek(0,0) + end + def seek(offset,whence) + case whence + when 0 + @pos=offset + when 1 + @pos+=offset + when 2 + @pos=@string.size+offset + end + @eof=(@pos>=@string.size) + 0 + end + end + + # + # Class method for creating streams + # + def YAML.make_stream( io ) + if String === io + io = StringIO.new( io ) + elsif not IO === io + raise YAML::Error, "YAML stream must be an IO or String object." + end + if YAML::unicode + def io.readline + YAML.utf_to_internal( readline( @ln_sep ), @utf_encoding ) + end + def io.check_unicode + @utf_encoding = YAML.sniff_encoding( read( 4 ) ) + @ln_sep = YAML.enc_separator( @utf_encoding ) + seek( -4, IO::SEEK_CUR ) + end + def io.utf_encoding + @utf_encoding + end + io.check_unicode + else + def io.utf_encoding + :None + end + end + io + end + +end + |