lexy
range-v3
lexy | range-v3 | |
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19 | 19 | |
953 | 4,017 | |
- | - | |
7.5 | 4.0 | |
7 days ago | 14 days ago | |
C++ | C++ | |
Boost Software License 1.0 | GNU General Public License v3.0 or later |
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lexy
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Why are strings and IO so complicated?
lexy (https://lexy.foonathan.net/)
- Show HN: Matcheroni, a tiny C++20 header library for building lexers/parsers
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Koji projekat na Githubu vas je odusevio u zadnje vreme?
https://github.com/foonathan/lexy nakon sto sam se propatio sa errorima od boost spirita, a pegtl mi se nije svidao, ovaj library je dosao kao odusevljenje, a i dokumentacija je iznenadujuce ok
- The Future of Boost by Vinnie Falco
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Simple question on compilers and syntax rules
In general, LALR parser generators are more difficult to work with than RD parser combinators. Instead of flex and bison, I'd recommend checking out Boost.Spirit or lexy.
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A simple library for compile-time string matching.
This might be closer: https://github.com/foonathan/lexy
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Any good parser combinator libraries for C++?
Lexy: https://lexy.foonathan.net/
- Show HN: Lexy – C++ parser combinator library with custom DSL
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How often do you use these keywords ?
lexy has something like std::bind with a way to specify fallback values for the placeholders if the arguments aren't provided: lexy::_1.or_default(fallback)
- Lexy: C++ Parsing DSL Library
range-v3
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Why are strings and IO so complicated?
std::ranges is in c++20, but you can pull in the library it was based on if you use 17 (https://github.com/ericniebler/range-v3)
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Java Streams in c++
What you are describing seems to be std::ranges. If you’re interested in understanding how to implement it, I recommend checking out the original reference implementation, rangev3. Trying to implement your own ranges framework is really good practice for learning how to do efficient, advanced generic programming in C++. I highly recommend it as a hobby learning project. But it’s also really, really hard to do correctly, so please just use the stdlib and/or rangev3 in any real project.
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What are some of the ways to make a super nasty nested loop become clean?
In C++23, there will be std::views::cartesian_product. It is already available in the range-v3 library, the one that the standard is based on.
- 295 pages on Initialization in Modern C++ :)
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Function composition in modern C++
/** * @brief Forwards value equivalent to the std::forward. * * Using cast instead of std::forward to avoid template instantiation. Used by * Eric Niebler in range library. * * @see https://github.com/ericniebler/range-v3 */
- PocketPy: A Lightweight(~5000 LOC) Python Implementation in C++17
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Is there an <algorithm> way to filter + transform multiple containers at once
It uses a custom zip_iterator (which isn't very good, and you should really use the one from boost or from range-v3).
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what annoys you most while using c++?
It contains very little functionality compared to the Eric Niebler’s reference implementation for my liking. Especially views. This will undoubtedly change in the future. But the point is moot, because they are not really supported the is no other option for now other than https://github.com/ericniebler/range-v3.
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C++20 Ranges Algorithms – 7 Non-Modifying Operations
range-v3 is a great library allowing you to bridge the gap: https://github.com/ericniebler/range-v3
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CXXIter: A chainable c++20 LINQ-like iterator library
[range-v3](https://github.com/ericniebler/range-v3) which std::ranges was based on has the `to>()` which as far as I know is expected to get into c++23 :)
What are some alternatives?
PEGTL - Parsing Expression Grammar Template Library
Boost.Asio - Asio C++ Library
parser-demo - Good source layout with Flex and Bison
cppitertools - Implementation of python itertools and builtin iteration functions for C++17
gadgetron - Gadgetron - Medical Image Reconstruction Framework
CppCoreGuidelines - The C++ Core Guidelines are a set of tried-and-true guidelines, rules, and best practices about coding in C++
json_struct - json_struct is a single header only C++ library for parsing JSON directly to C++ structs and vice versa
HCSR04 - Arduino library for HC-SR04, HC-SRF05, DYP-ME007, BLJ-ME007Y, JSN-SR04T ultrasonic ranging sensor
masala-parser - Javascript Generalized Parser Combinators
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.
daw_json_link - Fast, convenient JSON serialization and parsing in C++
cpplinq - LINQ for C++ (cpplinq) is an extensible C++11 library of higher-order functions for range manipulation. cpplinq draws inspiration from LINQ for C#.