uninttp
compile-time-regular-expressions
| uninttp | compile-time-regular-expressions | |
|---|---|---|
| 1 | 26 | |
| 27 | 3,163 | |
| - | - | |
| 7.8 | 7.0 | |
| 5 days ago | 9 days ago | |
| C++ | C++ | |
| MIT License | Apache License 2.0 |
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uninttp
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
What are some alternatives?
SpeciaLUT - Runtime choosing of template specializations using compile-time lookup-tables. Compile all states of a template function, but execute the optimal one at runtime.
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.
codlili - Constexpr STL-style containers
consteval-huffman - Compile-time Huffman coding compression using C++20
eternal - A C++14 compile-time/constexpr map and hash map with minimal binary footprint
xorstr - heavily vectorized c++17 compile time string encryption.
enumerate - Header-only, single file, C++11 compatible version of `enumerate`.
neo-fun - Some library components that didn't quite fit anywhere else...
introspective - Compile-Time Reflection in C++ for use with Scripting Languages
C++ Format - A modern formatting library
constyaml - constexpr (strict)yaml parser
staticvec - Implements a fixed-capacity stack-allocated Vec alternative backed by an array, using const generics.