c - coccinelle: replace single letter variables (i -> ii) -


i trying improve readability of ca 15k lines of c code. 1 idea replace single letter variable names first 2 letter names (i -> ii etc.), 1 has easier task when looking @ code. please note single letter variables in .h files.

i guess possible go use "rename variable" in 1 ide or (fixing 3 common ones: i, j, s; make difference), if 1 can automate task , smarter (i.e. checking ii variable exists somewhere, renaming i->ii globally may problematic).

the brain dead solution:

@@ identifier id=~ "^i$"; @@ - id + ii  @@ identifier id=~ "^j$"; @@ - id + jj

but if go through whole alphabet, still have problem code using not great mixture of i,ii,iii, etc.
hence question: there semantic patches doing variable identifier renaming checking name conflicts/resolving these (ie renaming pre-existing ii name ii_qscgy: have unique variable name)? sure, can double down on silly code above searching ii,jj first, made them unique, go single i,j etc. there must better way.

thank help.


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