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From: "Jakub T. Jankiewicz" <jcubic@onet.pl>
To: emacs-devel@gnu.org
Subject: Re: Scheme Mode and Regular Expression Literals
Date: Sat, 9 Mar 2024 14:37:12 +0100	[thread overview]
Message-ID: <20240309143712.7d81d781@jcubic> (raw)
In-Reply-To: <87sf105cw1.fsf@niceume.com>

This is perfect, thank you.

I also just noticed (while reading the docs) that GNU Kawa also have the same
syntax for regular expressions.

On Sat, 09 Mar 2024 11:59:10 +0900
Toshi Umehara <toshi@niceume.com> wrote:

> Regular expression literals as exist in Gauche Scheme does not seem to
> work in scheme mode. #/regexp/ is not dealt as a chunk. I looked for its
> solution on the Web, and reached this web page,
> https://ardggy.hatenablog.jp/entry/2015/11/24/143713 (in Japanese).  The
> solution on the page overwrites syntax-propertize-function and adds a
> new rule for regular expression literals. I got a hint from it, and have
> tried to manage backslash slash ( \/ ) not to finish the literal and
> backshashes of even numbers (like \\\\ ) not to work as escapes.
> 
> Currently, the following code in init.el works for me.
> 
> #+BEGIN_SRC
> (add-hook 'scheme-mode-hook
>           (lambda ()
>             (setq-local
>              syntax-propertize-function
>              (lambda (start end)
>                (goto-char start)
>                (funcall
>                 (syntax-propertize-rules
>                  ;; For #/regexp/ syntax
>                  ("\\(#\\)/\\(\\\\/\\|\\\\\\\\\\|.\\)*?\\(/\\)"
>                   (1 "|")
>                   (3 "|"))
>                  ;; For #; comment syntax
>                  ("\\(#\\);"
>                   (1 (prog1 "< cn"
>                        (scheme-syntax-propertize-sexp-comment
>                         (point) end)))))
>                 (point) end))
>              ))
>           )
> #+END_SRC
> 
> Hope this helps.
> 

--
Jakub T. Jankiewicz, Senior Front-End Developer
https://jcubic.pl/me
https://lips.js.org
https://koduj.org



  reply	other threads:[~2024-03-09 13:37 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-03-09  2:59 Scheme Mode and Regular Expression Literals Toshi Umehara
2024-03-09 13:37 ` Jakub T. Jankiewicz [this message]
2024-03-14  8:40 ` Eli Zaretskii
2024-03-14 11:38   ` Mattias Engdegård
2024-03-14 13:34     ` Stefan Monnier
2024-03-14 15:09       ` Jakub T. Jankiewicz
  -- strict thread matches above, loose matches on Subject: below --
2024-03-19  3:06 Toshi Umehara
2024-03-19 13:36 ` Stefan Monnier
2024-03-23  2:45   ` Toshi Umehara
2024-03-17  0:28 Toshi Umehara
2024-03-17  2:02 ` Stefan Monnier
2024-02-27 14:46 Jakub T. Jankiewicz

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