Question

I have the following sequences in C code:

variable == T_CONSTANT

or

variable != T_CONSTANT 

Using Python, how can I replace these by SOME_MACRO(variable) or !SOME_MACRO(variable), respectively?

Answer 1

A very simple and error-prone method is to use regular expressions:

>>> s = "a == T_CONSTANT"
>>> import re
>>> re.sub(r"(\w+)\s*==\s*T_CONSTANT", r"SOME_MACRO(\1)", s)
'SOME_MACRO(a)'

A similar regex can be used for the != part.