Hi Bináris,
I would consider it on a case-by-case basis. Note that the guidelines
state "should be avoided", not "are absolutely forbidden to be used"
:-)
For short regexps, I'd use f-strings where reasonable (i.e. where the
regex itself does not use {} for the number of characters to match) and
otherwise %-based formatting.
For longer regexps, string concatenation can often be clearer, also
because it makes it possible to add comments to clarify how the regexp
is built up.
Hope this helps,
Merlijn / valhallasw
On 11/02/2023 22:10, Bináris wrote:
Bináris <wikiposta(a)gmail.com> ezt írta (időpont: 2023. febr. 2., Cs,
19:22):
https://www.mediawiki.org/wiki/Manual:Pywikibot/Development/Guidelines#Misc…
says:
" Prefer f-strings over |string.format()|. Modulo operator |%| for
string formatting should be avoided."
I tried to rewrite a modulo-formatted regex to f-string, but than
realized, that in f-strings all curly braces must be doubled,
which makes regexes very hard to read and easy to misspell.
What is the best practice when you substitute a variable into a regex?
Is there any policy for this? Or should there be? If not, and modulo
is forbidden, I think the best tapproach is to use concatenation in
such situation. Opinions?
--
Bináris
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