







When good regexes go bad
RegExr: Learn, Build, & Test RegEx
RegExr is an online tool to learn, build, & test Regular Expressions (RegEx / RegExp).

A DEVELOPER PROVED THE REGEX YOU'VE WRITTEN A THOUSAND TIMES IS SECRETLY A COMPILER AND THAT ALMOST NO ONE WHO USES THEM HAS ANY IDEA WHAT ACTUALLY RUNS 36 minutes from Paul Wankadia, the engineer behind a regex engine that compiles your pattern straight down to raw machine code https://t.co/pMhg9AxYbJ
A DEVELOPER PROVED THE REGEX YOU'VE WRITTEN A THOUSAND TIMES IS SECRETLY A COMPILER AND THAT ALMOST NO ONE WHO USES THEM HAS ANY IDEA WHAT ACTUALLY RUNS36 minutes from Paul Wankadia, the engineer behind a regex engine that compiles your pattern straight down to raw machine code… https://t.co/XgyFxNmImW pic.twitter.com/pMhg9AxYbJ— slash1s (@slash1sol) June 5, 2026
regex101: build, test, and debug regex
Regular expression tester with syntax highlighting, explanation, cheat sheet for PHP/PCRE, Python, GO, JavaScript, Java, C#/.NET, Rust.
Fast regex search: indexing text for agent tools · Cursor
How we're building indexes for regular expression search so agents can find text in large monorepos without the 15-second ripgrep waits.

RegEx match open tags except XHTML self-contained tags
I need to match all of these opening tags: <p> <a href="foo"> But not self-closing tags: <br /> <hr class="foo" /> I came up with this and wanted to make
Regex Crossword
A crossword puzzle game using regular expressions. Earn achievements completing puzzle challenges. Easy tutorials for people new to regular expressions.
[Bug]: The SUID sandbox helper binary was found, but is not configured correctly. Rather than run without sandboxing I'm aborting now. · Issue #42510 · electron/electron
Preflight Checklist I have read the Contributing Guidelines for this project. I agree to follow the Code of Conduct that this project adheres to. I have searched the issue tracker for a bug report ...
[BUG] Conversation history invalidated on subsequent turns · Issue #40524 · anthropics/claude-code
Preflight Checklist I have searched existing issues and this hasn't been reported yet This is a single bug report (please file separate reports for different bugs) I am using the latest version...
warpfork/try-electron
Contribute to warpfork/try-electron development by creating an account on GitHub.
Vim anti-patterns | Arabesque
The benefits of getting to grips with Vim are immense in terms of editing speed and maintaining your “flow” when you’re on a roll, whether writing code, poetry, or prose, but because the learning curve is so steep for a text editor, it’s very easy to retain habits from your time learning the editor that stick with you well into mastery. Because Vim makes you so fast and fluent, it’s especially hard to root these out because you might not even notice them, but it’s worth it. Here I’ll list some of the more common ones.
Coding with LLMs in the summer of 2025 (an update) - <antirez>
Zed, Open-Source Code Editor by the Creators of Atom, Now on Linux!
The code editor by Atom creators is here for Linux!

AUR (en) - delta
From the comment below I see the package was flagged fairly recently, maybe because of the following problem (and which might be the missing details the maintainer was requesting):