method

parse_signature

v2_1_10 - Show latest stable - 0 notes - Class: CParser

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2_1_10 (38)
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What's this?

parse_signature(signature, tymap=nil) public

Parses a C prototype signature

Example:

include DL::CParser
=> Object

parse_signature('double sum(double, double)')
=> ["sum", DL::TYPE_DOUBLE, [DL::TYPE_DOUBLE, DL::TYPE_DOUBLE]]

Show source

# File ext/dl/lib/dl/cparser.rb, line 56
    def parse_signature(signature, tymap=nil)
      tymap ||= {}
      signature = signature.gsub(/\s+/, " ").strip
      case signature
      when /^([\w@\*\s]+)\(([\w\*\s\,\[\]]*)\)$/
        ret = $1
        (args = $2).strip!
        ret = ret.split(/\s+/)
        args = args.split(/\s*,\s*/)
        func = ret.pop
        if( func =~ /^\*/ )
          func.gsub!(/^\*+/,"")
          ret.push("*")
        end
        ret  = ret.join(" ")
        return [func, parse_ctype(ret, tymap), args.collect{|arg| parse_ctype(arg, tymap)}]
      else
        raise(RuntimeError,"can't parse the function prototype: #{signature}")
      end
    end

parse_signature

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