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require "rexml/document"
class GraphViz
class Types
class LblString < Common
def check(data)
return data
end
def output
html = /^<(.*)>$/m.match(@data.to_s)
if html != nil
xml = "<gv>" + html[1].to_s + "</gv>"
begin
doc = REXML::Document.new(xml)
unless doc.root.text == html[1].to_s
"<#{html[1]}>"
else
@data.to_s.inspect.gsub( "\\\\", "\\" )
end
rescue REXML::ParseException => _
@data.to_s.inspect.gsub( "\\\\", "\\" )
end
else
@data.to_s.inspect.gsub( "\\\\", "\\" )
end
end
alias :to_gv :output
alias :to_s :output
alias :to_ruby :output
end
end
end
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