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require 'coderay'
require 'erb'
include ERB::Util
code = <<'CODE'
$ie.text_field(:name, "pAnfrage ohne $gV und mit #{$gv}").set artikel
oder
text = $bla.test(...)
CODE
puts <<HTML
<html>
<head>
<style>span.glob-var { color: green; font-weight: bold; }</style>
</head>
<body>
HTML
CodeRay.scan_stream code, :ruby do |text, kind|
next if text.is_a? Symbol
text = h(text)
text = '<span class="glob-var">%s</span>' % text if kind == :global_variable
print text
end
puts <<HTML
</body>
</html>
HTML
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