Re: Regexp with comment character of buffer

[Heime <heimeborgia@protonmail.com>]

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On Tuesday, August 13th, 2024 at 7:13 AM, Yuri Khan <yuri.v.khan@gmail.com> wrote:

> On Tue, 13 Aug 2024 at 00:50, Heime heimeborgia@protonmail.com wrote:
> 
> > Is the space part of 'comment-start'. It is difficult to say from the code.
> 
> 
> You do not have to say that from code. You activate a buffer and do an
> M-: comment-start RET, and look at the result in the echo area. Repeat
> with a different mode.
> 
> Alternatively, you read Emacs sources, see that many but not all modes
> set comment-start with a trailing space.

comment-start should not introduce a trailing space for convenience, but added
later, so users can start writing the comment after a space.
 
> > Can I just use `comment-start` without trimming it ?
> 
> 
> Since you’re using string-to-char which is documented to return only
> the first character of the input string, it does not matter if you
> trim the original string beforehand.