File: mkproto.rb

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ruby 1.4.3-6
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$/ = nil
while gets()
  if /^((void|VALUE|int|char *\*|ID|struct [\w_]+ *\*|st_table *\*) *)?\n([\w\d_]+)\(.*\)\n\s*((.+;\n)*)\{/
    $_ = $'
    printf "%s %s(", $2, $3
    args = []
    for arg in $4.split(/;\n\s*/)
      arg.gsub! ' +', ' '
      if arg =~ /,/
	if arg =~ /(([^*]+) *\** *[\w\d_]+),/
	  type = $2.strip
	  args.push $1.strip
	  arg = $'
	else
	  type = ""
	end
	while arg.sub!(/(\** *[\w\d_]+)(,|$)/, "")
	  args.push type + " " + $1.strip
	end
      else
	args.push arg.strip
      end
    end
    printf "%s);\n", args.join(', ')
    redo
  end
end