[EMAIL PROTECTED] a écrit : > My parser has found an expression of the form CONSTANT_INTEGER > OPERATOR CONSTANT_INTEGER. I want to fold this into a single > CONSTANT_INTEGER. > > The OPERATOR token has an intValue attribute, '+' == 0, '-'== 1, etc. > In C I'd put functions Add, Subtract, ... into an array and call > ArithmeticFunctions[ intValue ] to perform the operation. Would I > index into a list of functions in Python, or would IF/ELIF/ELIF ... be > the way to go?
Python functions are first class objects, so you can indeed have a list (or dict etc) of functions: funcs = [lambda x : x+1, lambda x : x * 42] funcs[0](1) funcs[1](1) -- http://mail.python.org/mailman/listinfo/python-list
