45 lines
980 B
Ruby
45 lines
980 B
Ruby
module REXML
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class ParseException < Exception
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attr_accessor :source, :parser, :continued_exception
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def initialize( message, source=nil, parser=nil, exception=nil )
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super(message)
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@source = source
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@parser = parser
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@continued_exception = exception
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end
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def to_s
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# Quote the original exception, if there was one
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if @continued_exception
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err = @continued_exception.message
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err << "\n"
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err << @continued_exception.backtrace[0..3].join("\n")
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err << "\n...\n"
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else
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err = ""
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end
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# Get the stack trace and error message
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err << super
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# Add contextual information
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err << "\n#{@source.current_line}\nLast 80 unconsumed characters:\n#{@source.buffer[0..80].gsub(/\n/, ' ')}\n" if @source
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err << "\nContext:\n#{@parser.context}" if @parser
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err
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end
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def position
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@source.current_line[0] if @source
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end
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def line
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@source.current_line[2] if @source
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end
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def context
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@source.current_line
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end
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end
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end
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