GNU bug report logs -
#30750
25.3; New Python3.6 f-string syntax highlighting support (feature request)
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Reported by: Campbell Barton <ideasman42 <at> gmail.com>
Date: Thu, 8 Mar 2018 12:10:02 UTC
Severity: wishlist
Tags: confirmed
Found in version 25.3
Done: Stefan Monnier <monnier <at> iro.umontreal.ca>
Bug is archived. No further changes may be made.
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Report forwarded
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bug-gnu-emacs <at> gnu.org
:
bug#30750
; Package
emacs
.
(Thu, 08 Mar 2018 12:10:02 GMT)
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Campbell Barton <ideasman42 <at> gmail.com>
:
New bug report received and forwarded. Copy sent to
bug-gnu-emacs <at> gnu.org
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(Thu, 08 Mar 2018 12:10:02 GMT)
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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):
In python 3.6, code can be evaluated in a string, called an f-string,
see: https://www.python.org/dev/peps/pep-0498/
It would be nice if python-mode would not syntax highlight the code in
the f-string as a string, and instead use regular syntax highlighting.
eg:
print(f'Test {} me!'.format(2 + 2))
can be written as:
print(f'Test {2 + 2} me!')
I noticed php-mode (which had something like this for many years)
does for for PHP's strings, eg: "Test {$2 + 2} me!"
----
It was recommended I send in a feature request:
see: https://emacs.stackexchange.com/questions/39283
Thanks
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bug-gnu-emacs <at> gnu.org
:
bug#30750
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emacs
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(Thu, 06 Jun 2019 19:57:02 GMT)
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Message #8 received at 30750 <at> debbugs.gnu.org (full text, mbox):
[Message part 1 (text/plain, inline)]
I wonder if MagicPython project could be useful to implement this.
Currently, it has a pretty comprehensive test suit:
https://github.com/MagicStack/MagicPython/tree/master/test/fstrings
And it has f-strings grammar defined in a yaml file:
https://github.com/MagicStack/MagicPython/blob/master/grammars/src/pyfstring.inc.syntax.yaml
At the very least, it could serve as a widely adopted reference (Atom,
Sublime, and VS Code use it).
I also wrote a very naive and wrong hack for personal use, based on
php-mode:
```
(defconst python-f-string-regexp
"{[[:word:]]+\\.?[[:word:]]+?}")
(defun python-f-string-font-lock-find (limit)
(while (re-search-forward python-f-string-regexp limit t)
(when (python-syntax-comment-or-string-p)
(put-text-property (match-beginning 0) (match-end 0)
'face 'font-lock-variable-name-face)))
nil)
(with-eval-after-load 'python
(font-lock-add-keywords
'python-mode
`((python-f-string-font-lock-find))
'append))
```
(I'm really sorry, I don't know how to format monospaced text in debbugs)
[Message part 2 (text/html, inline)]
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bug#30750
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emacs
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(Thu, 06 Jun 2019 20:51:02 GMT)
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Message #11 received at 30750 <at> debbugs.gnu.org (full text, mbox):
Valentin Ignatev <valentignatev <at> gmail.com> writes:
> I wonder if MagicPython project could be useful to implement this.
Not directly, unless we port Emacs to JavaScript.
> At the very least, it could serve as a widely adopted reference (Atom,
> Sublime, and VS Code use it).
That's true.
> (I'm really sorry, I don't know how to format monospaced text in debbugs)
No worries, check https://debbugs.gnu.org/30750#8, your whole post is
already monospaced :)
(but posting code as attachment often works better, because gmail tends
to add line wrapping to the email body)
Added tag(s) confirmed.
Request was from
Stefan Kangas <stefan <at> marxist.se>
to
control <at> debbugs.gnu.org
.
(Sat, 28 Sep 2019 21:49:01 GMT)
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Reply sent
to
Stefan Monnier <monnier <at> iro.umontreal.ca>
:
You have taken responsibility.
(Fri, 16 Oct 2020 18:10:01 GMT)
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Notification sent
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Campbell Barton <ideasman42 <at> gmail.com>
:
bug acknowledged by developer.
(Fri, 16 Oct 2020 18:10:01 GMT)
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Message #18 received at 30750-done <at> debbugs.gnu.org (full text, mbox):
> It would be nice if python-mode would not syntax highlight the code in
> the f-string as a string, and instead use regular syntax highlighting.
I just pushed a change to the `master` branch of Emacs which should
do that.
Stefan
bug archived.
Request was from
Debbugs Internal Request <help-debbugs <at> gnu.org>
to
internal_control <at> debbugs.gnu.org
.
(Sat, 14 Nov 2020 12:24:07 GMT)
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This bug report was last modified 3 years and 157 days ago.
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