725 

   725 			

   726 			# if this value is a "path" or a "tool" then we need to make sure

   726 			if value:

   727 			# it is a proper absolute path in our preferred format.

   727 				# if this value ends in an un-escaped backslash, then it will be treated as a line continuation character in makefile

   728 			if value and (self.type == "path" or self.type == "tool"):

   728 				# parsing - un-escaped backslashes at the end of values are therefore escaped

   729 				try:

   729 				if value.endswith('\\'):

   730 					path = generic_path.Path(value)

   730 					# an odd number of backslashes means there's one to escape

   731 					value = str(path.Absolute())

   731 					count = len(value) - len(value.rstrip('\\'))

   732 				except ValueError,e:

   732 					if count % 2:

   733 					raise BadToolValue("the environment variable %s is incorrect: %s" % (self.name, str(e)))

   733 						value += '\\'

   734 	

   735 				# if this value is a "path" or a "tool" then we need to make sure

   736 				# it is a proper absolute path in our preferred format.

   737 				if self.type == "path" or self.type == "tool":

   738 					try:

   739 						path = generic_path.Path(value)

   740 						value = str(path.Absolute())

   741 					except ValueError,e:

   742 						raise BadToolValue("the environment variable %s is incorrect: %s" % (self.name, str(e)))