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Привет, Хабр! Представьте ситуацию: вы нашли крутой сервис, регистрируетесь, вводите свой email my.name+coolservice@gmail.com (ведь вы, как и я, любите порядок во входящих) и… получаете ошибку «Некорректный email». Знакомо? Уверен, что да. Каждый раз, когда я сталкиваюсь с таким, у меня дергается глаз. Это не просто мелкий баг. Это симптом глубокой проблемы в подходе к разработке и непонимания базовых стандартов. Давайте раз и навсегда разберемся, почему сервисы не принимают почту с «плюсом», почему это плохо для бизнеса и, главное, как это исправить.

https://habr.com/ru/articles/930160/

Adding lookbehinds to rust-lang/regex, https://systemf.epfl.ch/blog/rust-regex-lookbehinds/.

The feature of lookbehinds is very often absent in linear regex engines. These researchers bring them in the `regex` crate. The benchmarks show a reasonable and usable performance making it ready for real-world applications.

The article gives all pointers to the research article and the patches for `regex` (on github.com).

The prevention of unnecessary lookbehind scanning till the end of the haystack is neat!

Regex to edit the case of letters.

Very handy for de-capitalizing needless screaming when extracting alt-text material from memes.

#regex #AltText
https://stackoverflow.com/questions/20742076/replace-uppercase-with-lowercase-letters#answer-33351224

I love Vim, but of the handful of things that bothers me about it is that its #regex engine requires you to escape capture groups and character count atoms. There's always \v but it's honestly kind of annoying to have to think about picking the right one lol.

#Vim is great, but mother Perl did that part better

Quelques astuces pour bosser avec les regex.

https://2ality.com/2025/06/javascript-regexp-tips.html

Apropos of last weekends #emacs hacking. How many times would you ask an #llm to generate a #regex for you before you give up and just use a #rx form?

Adding lookbehinds to rust-lang/regex

https://systemf.epfl.ch/blog/rust-regex-lookbehinds/

TIL: in Python's `re` module, a named group (like `(?P<name>...)` can have `_` in the name, but not `-`, because they need to be valid Python identifiers instead of just strings.

I've only been using regular expressions in Python since 1.x.

Using Regular Expressions (Regex) in SQL Server 2025: A Complete Guide.

https://www.red-gate.com/simple-talk/featured/using-regex-in-sql-server-2025-complete-guide/

Trying to craft regex rules that match linguistic sound changes (https://en.wikipedia.org/wiki/Sound_change).

Fun! NOT!

How to Master Regular Expressions for Frontend Development https://jsdev.space/howto/regex-guide-frontend/ #javascript #regex

Hello #Fédiverse , quelqu'un aurait ça?

Delicious Food avec Amandine Chaignot au #Japon, (compte requis)

https://www.rmcbfmplay.com/info-programme/rmc-bfm-play/delicious-food-avec-amandine-chaignot?contentId=Product::NEUF_BFMAVOD_BAV_415625907527&universe=PROVIDER

Ou est arrivé à le capturer avec #ytdlp, je crois que le plugin /usr/lib/python3/dist-packages/yt_dlp/extractor/bfmtv.py est pas à jour avec la derrière forme d'URL et je sais pas mettre les mains dans le #Regex pour savoir si ça fonctionnerai.

Même connecté dans le navigateur pour la clé DRM. Fonctionne sur France TV.

Anführungszeichen ersetzen in Word

Ich stehe auf sorgfältige Typografie. Das habe ich in diesem Blog schon früher ausgeführt, nämlich hier und hier.

Word ist leider nicht auf die schönen Guillemets ausgerichtet. Aber man kann diese sehr einfach über die Suchen-Ersetzen-Funktion einfügen. Dazu nutzt man am einfachsten die Option Mit Mustervergleich, die eine Abwandlung von Grep darstellt.

Im Suchen-Ersetzen-Dialog von Word klickt man in der linken unteren Ecke auf Erweitern. Dann aktiviert man die Option Platzhalter verwenden, die der Option Mit Mustervergleich oder eben einem regulären Ausdruck entspricht.

Das Suchmuster unter Suchen nach zur Ersetzung von geraden Anführungszeichen („so“) durch Guillemets («so») lautet wie folgt:
"(?*)"

Der Code für das Feld Ersetzen durch sieht wie folgt aus:

«\1»

Bei einem Programm wie InDesign bei dem richtige Grep-Ausdrücke Verwendung finden, würde das Muster für den gleichen Zweck wie folgt lauten. Fürs Suchen:

"(.*?)"

Und fürs Ersetzen:

«$2»

PSA:
Tired of your timeline getting full of people debating the merits of #AI & #LLMs?

Add the following #regex to your word mutes:
/\s.*LLM*./i

Now my timeline isn't full of the continuing debate as to whether an #LLM is good or not.

(Hint: You can do the same thing for "AI" too!)

Regular Expression Chess

[Nicholas Carlini] found some extra time on his hands over the last holiday, so he decide to do something with “entirely no purpose.” The result: 84,688 regular expressions that can play chess using a 2-ply minmax strategy. No kidding. I think we can do some heavy-duty regular expressions, but this is a whole other level.

https://nicholas.carlini.com/writing/2025/regex-chess.html

#Regex doesn’t have to be scary. At #PSConfEU 2025, @james-oneill.bsky.social broke it down with: Match, replace, split Greedy vs lazy Real-world regex tips in #PowerShell & VS Code Early bird 2026 → psconf.eu #TextParsing #VSCode

- YouTube

I wanted to append a prefix to the beginning of the contents of a bunch of cells in #LibreOffice Calc, and the "simplest" way I found to do that today (from what I saw as recommendations in forums like StackOverflow and Reddit)… was to use regexes

So, to prefix the contents, I searched for:
^(.)

…and replaced by:
The string you want to add as a prefix $1

I feel dirty.

#regex I commented out all lines which reference "Notes" in my code because I want to easily backtrack if required. How do I again check if I missed any references without hitting every commented line?

^((?!//).)*Notes

Finally got my head around #regex enough to fine tune my #searxng instance to stop showing me results for Perth,AU instead of results for #PerthKinross. #selfhosting