On 5 January 2012 14:36, Julia Lawall <[email protected]> wrote: > Do you really need to use regular expressions in all of these cases? If you > don't need to use regular expressions, then it is better to avoid them. > Normally, if you have some function names in your semantic patch, and they > are essential for the semantic patch to apply, Coccinelle will be applied to > only files that contain these function names. With regular expressions, it > does not do this optimization. > > If you want to see what it is filtering on, you can run spatch -parse_cocci > file.cocci, and the list of required words appears at the end of the output. > > julia >
I wasn't aware of such thing. I think I can drop regular expressions for daily usage, however they were nice to identify all possible (possible only) memory allocation function invocations. Now I have something like: @@ type T; T *x; @@ ( malloc | kmalloc | custom_malloc ) ( - x + *(x) ) repeated for realloc and calloc. Btw. is it possible to combine positive and negative regular expressions? As I said above, I'd rather drop them altogether, however I'm just curious whether it's possible to search for functions ending with malloc, but not "bad_malloc" and "another_malloc" (because they have separate API)? Best regards, Robert _______________________________________________ Cocci mailing list [email protected] http://lists.diku.dk/mailman/listinfo/cocci (Web access from inside DIKUs LAN only)
