[issue7462] Implement fastsearch algorithm for rfind/rindex

[Antoine Pitrou]

Antoine Pitrou <pitrou at free.fr> added the comment:

> Actually I see different macros which do the same thing: I will consider
> reusing STRINGLIB_CMP to re-define PyUNICODE_MATCH and PySTRING_MATCH
> (or create aliases if they have the same signature).

STRINGLIB_CMP, as the name implies, should only be used by stringlib.
(anything which doesn't start with Py* shouldn't be exported in the
official include files)

> But don't you think we should do this incrementally, i.e. commit the
> current patch before refactoring more code?

Well, if STRINGLIB_CMP isn't used anymore, removing it should be part of
the current issue. There's no reason to leave dead code in the source
tree. I agree that further cleanups can be part of another issue.

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