import re
import sys
import clint

class catch_exception(clint.Rule):
	def initialize(self):
		self.pattern = re.compile(".*catch\W*\(.*? +(?P<reference>&?)\W*.*?\)")
		
	def pre_cpp(self,line):
		match = self.pattern.match(line)
		if match:
			if match.group('reference') != '&':
				self.message("Exception should be caught be reference")

	def finalize(self):
		pass

if __name__ == "__main__":
	lineno=0
	rule = macros()
	file = open(sys.argv[1])
	for line in file.readlines():
		lineno = lineno + 1
		rule.parse(line)