From: "Basil L. Contovounesios" <contovob@tcd.ie>
To: dalanicolai <dalanicolai@gmail.com>
Cc: 47534@debbugs.gnu.org
Subject: bug#47534: Subject: 28.0.50; Regexp lower case pattern matches upper case
Date: Wed, 31 Mar 2021 23:25:05 +0100 [thread overview]
Message-ID: <87blaz0xmm.fsf@tcd.ie> (raw)
In-Reply-To: <CACJP=3=ZW405eSOKac6P0brfu8J6p-zNPETozemAwmakrWs94A@mail.gmail.com> (dalanicolai's message of "Wed, 31 Mar 2021 23:58:34 +0200")
dalanicolai <dalanicolai@gmail.com> writes:
> When using the regexp builder and trying to match only lower case
> letters (and spaces), Emacs also includes upper case matches.
I think this is the effect of the user option case-fold-search, which
defaults to non-nil (this is the case across most search-related parts
of Emacs, including Isearch). You can toggle it in re-builder
specifically with C-c C-c (reb-toggle-case), or across all buffers by
customising case-fold-search to be nil.
> Also, I am unable to find in the manual any information about the
> option of setting different syntaxes in the regexp builder
I think most of the documentation for re-builder.el is in its commentary
at the start of the file; see M-x find-library RET re-builder RET.
I haven't used re-builder much, but from M-x customize-group RET
re-builder RET I see there is a user option reb-re-syntax for
controlling the default syntax. C-h m in the re-builder buffer further
reveals that the command C-c C-i (reb-change-syntax) can modify
reb-re-syntax on the fly.
> (also the option is not mentioned in the regexp-builder docstring). So
> I would additionally like to report this as a documentation bug.
Are you referring to the docstring of the re-builder command, or
something else? And is it a listing of key bindings you would like to
see, or something else? Would you like to provide a patch with
suggestions for improvements?
Thanks,
--
Basil
next prev parent reply other threads:[~2021-03-31 22:25 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-31 21:58 bug#47534: Subject: 28.0.50; Regexp lower case pattern matches upper case dalanicolai
2021-03-31 22:25 ` Basil L. Contovounesios [this message]
2021-04-01 8:12 ` dalanicolai
2021-04-01 10:27 ` dalanicolai
2021-04-01 10:27 ` dalanicolai
2021-04-01 10:30 ` dalanicolai
2021-05-08 11:59 ` Lars Ingebrigtsen
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