compile-time-regular-expressions
staticvec
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compile-time-regular-expressions | staticvec | |
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26 | 10 | |
3,163 | 267 | |
- | - | |
7.0 | 4.9 | |
5 days ago | 11 months ago | |
C++ | Rust | |
Apache License 2.0 | Apache License 2.0 |
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compile-time-regular-expressions
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Why are strings and IO so complicated?
CTRE (https://github.com/hanickadot/compile-time-regular-expressions) ranges::views (filter, transform, etc.) (C++20) str.find() + str.substr() freopen to stdin + cin >> extraction Parser libraries
- Compile time regular expression in C++
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What are thoughts on removing regular expression from the standard library?
There are suggestions that should be replaced by the high performance ctre implementation: https://github.com/hanickadot/compile-time-regular-expressions
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What's the most hilarious use of operator overloading you've seen?
operator"" can be used in a similar way to expression templates (DSLs), where the type of the resulting expression is dependent on the string contents. For example ctre makes use of this to build efficient regular expression parsers, and kumi uses this in conjunction with operator[] to make tuple indexing quite elegant
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It's easy, I swear! Once you learn a bit about it, you'll be amazed!
Check out https://github.com/hanickadot/compile-time-regular-expressions anything is possible ๐
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Verify all characters are same except a few
Yes to regex, no to std::regex. Better to use CTRE. Something like "^Hello [0-9]+ how are you" should allow checking if there's a match
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Constexpr regex parser!
You could compare your implementation with https://github.com/hanickadot/compile-time-regular-expressions and see if there are any ideas you can copy.
- Regex is comically slow. High performance alternatives? (Pattern matching for validation)
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Regex shootout updated - hyperscan 1st, Rust 2nd, std::regex dead last
std::compile_time_regex would be a nice addition. Something similar to ctre https://github.com/hanickadot/compile-time-regular-expressions Simply letting the compiler generate all the regex parsing machinery at compile time.... And benefitting from compiler optimizations, vectorization, etc...
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What are some cool modern libraries you enjoy using?
ctre
staticvec
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Posting asking if the Rust Reddit community is overly regulated gets regulated.
This crate of mine for example is currently literally unusable until the deeply fundamental features that John Random kinda-sorta removed in this pull request, ostensibly in preparation for whatever shittily stated syntax is ultimately establihed by whatever the hell "keyword generics" actually is (I really don't know, like this isn't a joke, I fundamentally do not understand what the fuck they're proposing at all in any way or how it's meaningfully and usefullly different from the previous syntax).
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Alternative for Vec for variable size arrays in no_std environment?
If you're on nightly, I have a crate that I'd say would seem to be exactly what you're looking for.
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Why do Rust crates rarely have good documentation?
I'd say the module system can sometimes get in the way of even the most technically well-documented crate out there. It's why for example I carefully rexport the various types implemented by my crate StaticVec from lib.rs such that the main docs page looks like this, even though "under the hood" everything is actually about as modular as you might expect it to be.
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There's always something new and interesting to see on your Rust crate's Github Traffic page
Here.
- StaticVec 0.11.0 - fully fixed for current nightly Rust and updated to the 2021 edition
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Zig programming language 0.9.0 released
Your link there is rather outdated. mem::unitialized() is deprecated and not recommended for use. MaybeUninit works more than fine in my experience, anyways.
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What can C++ do that Rust canโt? (2021 edition)
The lack of decltype-esque functionality has consequences that are far-reaching enough to be worthy of more than a throwaway mention, IMO. See this ongoing issue for a crate of mine, for example.
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How do I implement a StackVec in no_std that allows me to store arbitrary &str's?
If you're on nightly, my crate StaticVec definitely has your use case covered and then some.
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StaticVec 0.10.6 - const `push`, const `pop, const `insert, the return of `intersperse` also as a `const fn`, and more!
Looks like this crate uses the full const_generics instead of min_const_generics (see here), along with a couple dozen other unstable features. I'm not sure how much of that could easily be removed, since it is often the tendency to enable tons of unstable features when you are already on nightly because of something like const generics.
- StaticVec 0.10.6: const `push`, const `pop`, const `insert`, the return of `intersperse` now also as a `const fn`, and more!
What are some alternatives?
RE2 - RE2 is a fast, safe, thread-friendly alternative to backtracking regular expression engines like those used in PCRE, Perl, and Python. It is a C++ library.
staticstep - Provides truly zero-cost alternatives to Iterator::step_by for both incrementing and decrementing any type that satisfies RangeBounds<T: Copy + Default + Step>.
consteval-huffman - Compile-time Huffman coding compression using C++20
hypergraph - Hypergraph is data structure library to create a directed hypergraph in which a hyperedge can join any number of vertices.
xorstr - heavily vectorized c++17 compile time string encryption.
rust - Rust for the xtensa architecture. Built in targets for the ESP32 and ESP8266
neo-fun - Some library components that didn't quite fit anywhere else...
zigmod - ๐ฆ A package manager for the Zig programming language.
C++ Format - A modern formatting library
containers - Containers backed by std.experimental.allocator
uninttp - A universal type for non-type template parameters for C++20 or later.
rust - Empowering everyone to build reliable and efficient software.