nocaseglob and RE matching

From	Grisha Levit <grishalevit@gmail.com>
Newsgroups	gnu.bash.bug
Subject	nocaseglob and RE matching
Date	2019-09-23 13:38 -0400
Message-ID	<mailman.919.1569260347.2190.bug-bash@gnu.org> (permalink)
References	<CAMu=Brph2yR5sk1Y5X317dynP6YNTpWG3seCaWwvtmgNS6avPw@mail.gmail.com>

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Currently nocaseglob and nocasematch both control case insensitivity
of RE matching (in lib/sh/smatch.c):

  if (glob_ignore_case || match_ignore_case)
    rflags |= REG_ICASE;

However, the documentation suggests that only nocasematch should have
this effect.  I'm guessing this behavior was in bash-3.1 for
compatibility with bash-3.0 (in which nocaseglob *was* the documented
way to turn on case insensitive RE matching, prior to nocasematch
being added) but it doesn't seem to make much sense now.

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nocaseglob and RE matching Grisha Levit <grishalevit@gmail.com> - 2019-09-23 13:38 -0400

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