sd
regex
sd | regex | |
---|---|---|
31 | 91 | |
5,369 | 3,355 | |
- | 1.4% | |
8.0 | 8.9 | |
2 months ago | 13 days ago | |
Rust | Rust | |
MIT License | Apache License 2.0 |
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sd
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Essential Command Line Tools for Developers
View on GitHub
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Ripgrep 14 Released
I wanted to like sd but it doesn't support my main use case of recursive search/replace. Imagine every time you wanted to grep some files you had to build a find+xargs+rg pipeline... it just takes me out of the flow too much. I'm glad people are posting other options here, I'm looking forward to trying them.
https://github.com/chmln/sd/issues/62
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🐚🦀Comandos shell reescritos em Rust
sd
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sed cheatsheet
https://github.com/chmln/sd ftw (sed rebuilt in rust, much easier imho) ;-)
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What modern utilities should be a standard part of a modern unixy distro?
sd is a more intuitive alternative to sed, focussing on making find and replace easier - which is all I ever used sed for.
https://github.com/chmln/sd
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Delete all occurrences of a string
If it's in multiple files? To be honest, I'd just use a terminal and sed (or sd if you want something with a more friendly interface).
- Neovim locks up on big files while doing a replacement
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sd: your script directory
I love the idea and I'll try it out, but a heads up in case the author is around: the name sd clashes with another tool [0], which works as an alternative to sed.
I use that one pretty often, so maybe my first managed script will be one which symlinks binaries :)
[0] https://github.com/chmln/sd
- Intuitive find and replace CLI (sed alternative)
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Rust Easy! Modern Cross-platform Command Line Tools to Supercharge Your Terminal
sd is a find-and-replace CLI, and you can use it as a replacement for sed and awk. It is way more user-friendly and modern. It is also magnitudes faster than sed.
regex
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Zed is now open source
The homepage has a benchmark that compares Zed's "insertion latency" to other editors, and this is the description:
> Open input.rs at the end of line 21 in rust-lang/regex. Type z 10 times, measure how long it takes for each z to display since hitting the z key.
Could someone clarify what that means? My interpretation of that was to go to https://github.com/rust-lang/regex/blob/master/regex-cli/arg... and start typing 'z' at the end of line 21, but that doesn't seem to make any sense. I guess that repo got refactored and those instructions are out of date?
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CryptoFlow: Building a secure and scalable system with Axum and SvelteKit - Part 3
We also used the avenue to sluggify the question title. We used regex to fish out and replace all occurrences of punctuation and symbol characters with an empty string and using the itertools crate, we joined the words back together into a single string, where each word is separated by a hyphen ("-").
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Command Line Rust is a great book
Command-Line Rust taught me how to use crates like clap, assert_cmd, and regex. I felt lost before because I didn't know about Rust's ecosystem--which is arguably as important as the language itself. Also, looking up and comparing libraries is a tiring task! blessed.rs is nice but Command-Line Rust really saved me from analysis paralysis.
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Common Rust Lifetime Misconceptions
burntsushi actually regrets making regex replace return a Cow: https://github.com/rust-lang/regex/issues/676#issuecomment-6.... I’m glad it does, and wish it took an impl Into> there, for the reasons discussed in the issue, but burntsushi has a lot more experience of the practical outcomes of this. Just something more to think about.
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Advent of Code 2023 is nigh
I'm not familiar with the AoC problem. You might be able to. But RegexSet doesn't give you match offsets.
You can drop down to regex-automata, which does let you do multi-regex search and it will tell you which patterns match[1]. The docs have an example of a simple lexer[2]. But... that will only give you non-overlapping matches.
You can drop down to an even lower level of abstraction and get multi-pattern overlapping matches[3], but it's awkward. The comment there explains that I had initially tried to provide a higher level API for it, but was unsure of what the semantics should be. Getting the starting position in particular is a bit of a wrinkle.
[1]: https://docs.rs/regex-automata/latest/regex_automata/meta/in...
[2]: https://docs.rs/regex-automata/latest/regex_automata/meta/st...
[3]: https://github.com/rust-lang/regex/blob/837fd85e79fac2a4ea64...
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Text Showdown: Gap Buffers vs. Ropes
It’s not quite that simple, but folks are working on it.
https://github.com/rust-lang/regex/issues/425#issuecomment-1...
https://github.com/helix-editor/helix/pull/211#issuecomment-...
- Please ask questions (rust-lang/regex)
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ScripterC - Rust-lang set
Dependencies used: - regex - unicode_reader - rust decimal - tokio
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Regex Engine Internals as a Library
https://www.cs.princeton.edu/courses/archive/fall19/cos226/l... and https://kean.blog/post/lets-build-regex are excellent introductions to implementing a (very) simplified regex engine: construct a nondetermistic finite state automaton for the regex, then perform a graph search on the resulting digraph; if the vertex corresponding to your end state is reachable, you have a match.
I think this exercise is valuable for anyone writing regexes to not only understand that there's less magic than one might think, but also to visualize a bunch of balls bouncing along an NFA - that bug you inevitably hit in production due to catastrophic backtracking now takes on a physical meaning!
Separately re: the OP, https://github.com/rust-lang/regex/issues/822 (and specifically BurntSushi's comment at the very end of the issue) adds really useful context to the paragraph in the OP about niche APIs: https://blog.burntsushi.net/regex-internals/#problem-request... - searching with multiple regexes simultaneously against a text is both incredibly complex and incredibly useful, and I can't wait to see what the community comes up with for this pattern!
What are some alternatives?
ripgrep - ripgrep recursively searches directories for a regex pattern while respecting your gitignore
re2 - modern regular expression syntax everywhere with a painless upgrade path [Moved to: https://github.com/SonOfLilit/kleenexp]
neomutt - ✉️ Teaching an Old Dog New Tricks -- IRC: #neomutt on irc.libera.chat
node-re2 - node.js bindings for RE2: fast, safe alternative to backtracking regular expression engines.
useful-sed - Useful sed scripts & patterns.
zig - General-purpose programming language and toolchain for maintaining robust, optimal, and reusable software.
hck - A sharp cut(1) clone.
ngrams - (Read-only) Generate n-grams
pomsky - A new, portable, regular expression language
regex-benchmark - It's just a simple regex benchmark of different programming languages.
joshuto - ranger-like terminal file manager written in Rust
whatlang-rs - Natural language detection library for Rust. Try demo online: https://whatlang.org/