compile-time-regular-expressions
Experimental Boost.DI
compile-time-regular-expressions | Experimental Boost.DI | |
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26 | 8 | |
3,166 | 1,103 | |
- | 1.5% | |
7.0 | 3.5 | |
11 days ago | 24 days ago | |
C++ | C++ | |
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 😂
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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
Experimental Boost.DI
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What are some cool modern libraries you enjoy using?
I love: https://github.com/boost-ext/di for dependency injection
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[C++20] New way of meta-programming?
https://github.com/boost-ext/di (To detect constructor parameters and inject dependencies without runtime dispatch)
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Dependency injection
I was looking to try boost.di for some time, looks nice. https://boost-ext.github.io/di/
- Dependency injection with c++
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Architecture of a Qt application
Things like Dependency Injection/Inversion are a little more cumbersome in C++ but certainly can be done, and I believe there's libraries for that as well (found a couple searching around, like fruit and boost-ext di ).
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Jodd – The Unbearable Lightness of Java
Dependency injection does not have to be dynamic, it can totally be done at compile time. Boost DI is an example: https://boost-ext.github.io/di/
- DI in c++ hurt by lack of good libraries?
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Top five C/C++ things/tips/tricks you wish you had known earlier and are now used very often
Funny you mention dependency injection, proposed Boost.DI shall be up for Boost peer review probably in March. https://boost-ext.github.io/di/
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.
kangaru - 🦘 A dependency injection container for C++11, C++14 and later
consteval-huffman - Compile-time Huffman coding compression using C++20
American Fuzzy Lop - american fuzzy lop - a security-oriented fuzzer
xorstr - heavily vectorized c++17 compile time string encryption.
c-smart-pointers - Smart pointers for the (GNU) C programming language
neo-fun - Some library components that didn't quite fit anywhere else...
gcc-poison - gcc-poison
C++ Format - A modern formatting library
outcome - Provides very lightweight outcome<T> and result<T> (non-Boost edition)
staticvec - Implements a fixed-capacity stack-allocated Vec alternative backed by an array, using const generics.
stb - stb single-file public domain libraries for C/C++