In order to match the star-star, we disable the flag that's looking for
a single path element, but that leads to searching for the pattern in
the middle of elements in the input string.
Mark when we're handing a star-star so we jump over the elements in our
attempt to match the part of the pattern that comes after the star-star.
While here, tighten up the check so we don't allow invalid rules
through.
Some brain damaged tolower() implementations appear to want to
take the locale into account, and this may require taking some
insanely aggressive lock on the locale and slowing down what should
be the most trivial of trivial calls for people who just want to
downcase ASCII.
Because fnmatch uses recursion, there were some input sequences
that cause seriously degenerate behavior. This imports a fix
that imposes a max recursion limiter to avoid the worst of it.
If the strings match, git__fnmatch returns GIT_SUCCESS and
GIT_ENOMATCH on failure to match.
MSVC fixes: Added a test for _MSC_VER and (in that case) defined
HAVE_STRING_H to 1 so it doesn't try to include <strings.h> which
doesn't exist in the MSVC world. Moved the function declarations to
use the modern inline ones so MSVC doesn't have a fit. Added casts
everywhere so MSVC doesn't crap its pants.
Signed-off-by: Carlos Martín Nieto <carlos@cmartin.tk>
