I’ve been trying without success to create a regex that I can use to refactor a bunch of calls to 2 functions with a fixed, 6 argument signature like this:
logger_4args_A(FlagsA|FlagsB,"This is %s message %d",someString(n*2),some_Goofy->number.thing(),0,0); logger_4args_B(FlagsC, "No args passed here, only 0 defaults",0,0,0,0);
into a variadic invocation of 2 new functions like this:
newLogA(FlagsA|FlagsB,"This is %s message %d",someString(n*2),some_Goofy->number.thing()); newLogB(FlagsC, "No real args passed only 0 defaults");
(… effectively a printf()).
The logger_4args_x functions always take a 6 args and the function I want replace take
this seems like it should be easy but has made me realize my true grasp of RE drops off much more quickly than I thought 🙁
A couple of points that hopefully simplify things:
- 0 will never be an actual argument
- Real items will always appear first: data1,data2,0,0 NEVER data1,0,data2,0
- There will never be literals "" or ” as an argument
- There are no C Preprocessor macros in the argument list
I’ve been able to capture everything up to the zeros, but no permutation of lookahead / lookbehind / branch reset capture groups has worked for me.
Thanks for any help or suggestions!
Source: Windows Questions C++