nix
regex
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nix | regex | |
---|---|---|
12 | 91 | |
2,526 | 3,345 | |
2.5% | 2.1% | |
9.4 | 9.1 | |
6 days ago | 8 days ago | |
Rust | Rust | |
MIT License | Apache License 2.0 |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
nix
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I was wrong about rust
If we drop std Rust ceases to be economical due to the time it would take to reimplement the data structures and IO interfaces it provides, not to mention the event loop crate we use (calloop). At that point we'd be relying on so much FFI via eg. nix that the relative safety would be diminished too. After reimplementing all that it's not clear to me that we'd even save that much size, but I suppose it's possible.
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The guide to signal handling in Rust
Now that we have covered the fundamentals of signals, let's delve into the world of handling signals in Rust! Unlike C, where signal handling is built into the language modules, Rust provides several libraries that enable developers to handle signals with ease. Libraries such as signal_hook, nix, libc, and tokio handle signals that primarily use C bindings to make it possible to work with signals.
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[Quick Poll] Are You Using Nix for Your Rust Open-Source Projects?
Obviously you meant the nix crate
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Is there something like unistd.h on Rust?
Finally, there's the nix crate, which provides a safe Rust API over the libc functions.
- Pinning a dependency of a dependency when Cargo.lock is unavailable?
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Looking for feedback: cargo-changelog
You can take a look here for example: https://github.com/nix-rust/nix/blob/master/CHANGELOG.md
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An update on Rust coreutils
Unsafe code can in principle speed up I/O by calling libc for special syscalls, but uutils typically uses safe wrappers from nix instead. Very rarely there's a line of unsafe code needed to sand off the edges.
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Rust maintainer perfectionism, or, the tragedy of Alacritty
This post fails to speak to me on two fronts:
* The `nix` crate is a cornerstone of the Rust development ecosystem: if you do anything that requires POSIX or various nix-specific APIs beyond those wrapped by the standard library, then `nix` most likely provides a high-level and safe* wrapper for them. Perfectionism is a virtue in this context, one that keeps large parts of the Rust ecosystem from accidentally consuming buggy code. The author unfortunately chose a particularly messy and bug-prone corner of the POSIX APIs to wrap, and ran into a correspondingly intensive review process. I've merged simpler wrappers[1][2] with no fuss.
* Alacritty seems to work just fine. I switched to it about two months ago, after using nothing but (heavily customized) rxvt-unicode for a decade. Maybe it's because I don't use ligatures or images in my terminals (I thought we were talking about non-"toy" functionality!), but I haven't found myself wanting for anything beyond what Alacritty already does. And the scrollback seems to work nicely. To summarize: where's the tragedy?
[1]: https://github.com/nix-rust/nix/pull/1342
[2]: https://github.com/nix-rust/nix/pull/1331
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What would you change about bitflags?
One thing I'd like to see is a MSRV policy, as its causing problems for downstreams (https://github.com/nix-rust/nix/issues/1555)
- Choosing between Rust and C++ for a new project
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?
rust-fuse - Rust library for filesystems in userspace (FUSE)
re2 - modern regular expression syntax everywhere with a painless upgrade path [Moved to: https://github.com/SonOfLilit/kleenexp]
tilix - A tiling terminal emulator for Linux using GTK+ 3
node-re2 - node.js bindings for RE2: fast, safe alternative to backtracking regular expression engines.
rust - Empowering everyone to build reliable and efficient software.
zig - General-purpose programming language and toolchain for maintaining robust, optimal, and reusable software.
rust-bindgen - Automatically generates Rust FFI bindings to C (and some C++) libraries.
ngrams - (Read-only) Generate n-grams
cxx - Safe interop between Rust and C++
regex-benchmark - It's just a simple regex benchmark of different programming languages.
Etherpad - Etherpad: A modern really-real-time collaborative document editor.
whatlang-rs - Natural language detection library for Rust. Try demo online: https://whatlang.org/