From: dalanicolai <dalanicolai@gmail.com>
To: "Basil L. Contovounesios" <contovob@tcd.ie>
Cc: 47534@debbugs.gnu.org
Subject: bug#47534: Subject: 28.0.50; Regexp lower case pattern matches upper case
Date: Thu, 1 Apr 2021 12:30:39 +0200 [thread overview]
Message-ID: <CACJP=3=Gj5+qppO3LjA8KmH15CuxzQ1z-cDso8UwhN8ojUxS9g@mail.gmail.com> (raw)
In-Reply-To: <CACJP=3=oX7jhKBGUcvjapTDeHph2VJWXzsa5Lv8uwqb7odyOLg@mail.gmail.com>
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Of course any feedback on the code (well... text) or my workflow is very
welcome.
On Thu, 1 Apr 2021 at 12:27, dalanicolai <dalanicolai@gmail.com> wrote:
> And here is a small patch for the docs
>
> On Thu, 1 Apr 2021 at 12:27, dalanicolai <dalanicolai@gmail.com> wrote:
>
>> Here is a small patch for the re-builder docstring. I hope I did things
>> correctly...
>>
>> On Thu, 1 Apr 2021 at 10:12, dalanicolai <dalanicolai@gmail.com> wrote:
>>
>>> Ah thanks. I thought I used case sensitive replace-regexp before, but
>>> probably I am mistaking then. Section "34.3 Regular Expressions" of the
>>> Emacs manual states that "[a-z]" or "[:lower:]" should match only lower
>>> case, while it is not mentioned at all that it will not work by default
>>> (case-fold-search as well as reb-toggle-case and reb-change-syntax are not
>>> mentioned at all in that section as far as I can find). Indeed I was
>>> referring to the docstring of re-builder. Anyway, I am happy to provide a
>>> patch.
>>>
>>>
>>>
>>> On Thu, 1 Apr 2021 at 00:25, Basil L. Contovounesios <contovob@tcd.ie>
>>> wrote:
>>>
>>>> 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
>>>>
>>>
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next prev parent reply other threads:[~2021-04-01 10:30 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
2021-04-01 8:12 ` dalanicolai
2021-04-01 10:27 ` dalanicolai
2021-04-01 10:27 ` dalanicolai
2021-04-01 10:30 ` dalanicolai [this message]
2021-05-08 11:59 ` Lars Ingebrigtsen
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