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
CodeRay.scan_stream code, :ruby do |text, kind|
next if text.is_a? Symbol
text = h(text)
text = '%s' % text if kind == :global_variable
print text
end
puts <
HTML