class Object
Public Instance Methods
main()
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# File lib/special-giggle/main.rb, line 7 def main ARGV << "-h" if ARGV.empty? options = Hash.new OptionParser.new do |opts| opts.banner = "Usage: ruby main.rb [options]" opts.separator "" opts.separator "Specific options:" opts.on("-f FILE", "--file", String, "Input from file (required)") do |f| options[:file] = f end opts.on("-t LANG", "--target", String, "Target language - C, Assembly (default C)") do |t| options[:lang] = t end opts.on("-o FILE", "--output", String, "Output to file (default: stdout)") do |o| options[:output] = o end opts.on_tail("-h", "--help","Show this message") do puts opts exit end end.parse! abort("Missing input file. Abort.") if options[:file].nil? abort("File not found. Abort.") unless File.file?(options[:file]) options[:lang] ||= "C" lang = case options[:lang].downcase when "c" :C when "assembly" :S else abort("Language not supported. Abort.") end # Read program program = File.read(options[:file]) # Lexing lexer = Lexer.new tokens = lexer.tokenize(program) # Parsing parser = Parser.new ast = parser.parse(tokens) # Code Generator generator = Generator.new code = generator.generate(ast, lang) if options[:output] File.write(options[:output], code) else puts code end end