https://bugs.exim.org/show_bug.cgi?id=2107
Bug ID: 2107
Summary: Please add support for parsing glob(3) syntax
Product: PCRE
Version: 10.23 (PCRE2)
Hardware: All
OS: All
Status: NEW
Severity: wishlist
Priority: medium
Component: Code
Assignee: p...@hermes.cam.ac.uk
Reporter: ava...@gmail.com
CC: pcre-dev@exim.org
This is similar to my just-filed wishlist bug for parsing POSIX regular
expressions, see https://bugs.exim.org/show_bug.cgi?id=2106
Various programs might want to use PCRE v2 (such as Git), also have some need
to provide user-facing glob() semantics. Git does this via an old copy of
rsync's wildmatch().
As noted in a newly-published paper by Russ Cox it's common for glob() engines
to be more vulnerable to pathological patterns than is common with regular
expression engines: https://research.swtch.com/glob
It would be nice to have a function in PCRE to convert glob patterns to PCRE
regexes, e.g. Python implements a shimmy layer like this internally to
implement glob():
https://github.com/python/cpython/blob/master/Lib/fnmatch.py#L74
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