84 lines
1.9 KiB
Ruby
84 lines
1.9 KiB
Ruby
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#
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# Limited StringIO if no core lib is available
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#
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begin
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require 'stringio'
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rescue LoadError
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# StringIO based on code by MoonWolf
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class StringIO
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def initialize(string="")
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@string=string
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@pos=0
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@eof=(string.size==0)
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end
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def pos
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@pos
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end
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def eof
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@eof
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end
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alias eof? eof
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def readline(rs=$/)
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if @eof
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raise EOFError
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else
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if p = @string[@pos..-1]=~rs
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line = @string[@pos,p+1]
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else
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line = @string[@pos..-1]
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end
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@pos+=line.size
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@eof =true if @pos==@string.size
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$_ = line
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end
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end
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def rewind
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seek(0,0)
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end
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def seek(offset,whence)
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case whence
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when 0
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@pos=offset
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when 1
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@pos+=offset
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when 2
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@pos=@string.size+offset
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end
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@eof=(@pos>=@string.size)
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0
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end
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end
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#
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# Class method for creating streams
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#
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def YAML.make_stream( io )
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if String === io
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io = StringIO.new( io )
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elsif not IO === io
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raise YAML::Error, "YAML stream must be an IO or String object."
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end
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if YAML::unicode
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def io.readline
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YAML.utf_to_internal( readline( @ln_sep ), @utf_encoding )
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end
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def io.check_unicode
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@utf_encoding = YAML.sniff_encoding( read( 4 ) )
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@ln_sep = YAML.enc_separator( @utf_encoding )
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seek( -4, IO::SEEK_CUR )
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end
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def io.utf_encoding
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@utf_encoding
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end
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io.check_unicode
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else
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def io.utf_encoding
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:None
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end
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end
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io
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end
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end
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