diff options
Diffstat (limited to 'lib/rexml/parseexception.rb')
-rw-r--r-- | lib/rexml/parseexception.rb | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/lib/rexml/parseexception.rb b/lib/rexml/parseexception.rb new file mode 100644 index 0000000000..04928d9175 --- /dev/null +++ b/lib/rexml/parseexception.rb @@ -0,0 +1,44 @@ +module REXML + class ParseException < Exception + attr_accessor :source, :parser, :continued_exception + + def initialize( message, source=nil, parser=nil, exception=nil ) + super(message) + @source = source + @parser = parser + @continued_exception = exception + end + + def to_s + # Quote the original exception, if there was one + if @continued_exception + err = @continued_exception.message + err << "\n" + err << @continued_exception.backtrace[0..3].join("\n") + err << "\n...\n" + else + err = "" + end + + # Get the stack trace and error message + err << super + + # Add contextual information + err << "\n#{@source.current_line}\nLast 80 unconsumed characters:\n#{@source.buffer[0..80].gsub(/\n/, ' ')}\n" if @source + err << "\nContext:\n#{@parser.context}" if @parser + err + end + + def position + @source.current_line[0] if @source + end + + def line + @source.current_line[2] if @source + end + + def context + @source.current_line + end + end +end |