Experimental Boost.DI
PEGTL
Experimental Boost.DI | PEGTL | |
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8 | 12 | |
1,103 | 1,869 | |
1.5% | 1.0% | |
3.5 | 7.2 | |
23 days ago | 4 days ago | |
C++ | C++ | |
- | Boost Software License 1.0 |
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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 โ 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/
PEGTL
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Show HN: Matcheroni, a tiny C++20 header library for building lexers/parsers
Very cool, and I like the name!
I'd be interested in reading about how Matcheroni compares with PEGTL and Lexy.
https://github.com/taocpp/PEGTL
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Use PEGTL to remove my clunky homemade parser
I found a library I wanted to test: Pegtl
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What are some cool modern libraries you enjoy using?
I like PEGTL
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Are C/C++ developers allowed to import libraries to make coding easier or are they expected to build every functions and methods from scratch (without importing anything like String.h)?
Sure - libraries that are expected to be entirely self-contained. The one that comes to mind is PEGTL, a parser combinator library that is intended to be embedded inside a larger program. Making it import more dependencies would break this philosophy. Similarly, in the Rust world, there are a variety of "no-std" crates that should be able to be imported even if the standard library is not available on the target platform.
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TIL: Visual Studio has quantum state values ๐คจ
The program in the post was just an example meant to illustrate the problem. Originally, this (new) behavior of MSVC broke my code in the PEGTL, see [this commit](https://github.com/taocpp/PEGTL/commit/e3c8cb499dc3d1d76d23f2d5d79469dcb15550c5) that I needed to apply to fix it.
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We Built a C++ Rendering Engine for the Web
As a professional C++ programmer I feel a lot of the reasons C++ gets this response is because it's simply not "batteries included" like Go or Rust.
C++ is a very powerful, unopinionated language, that gives you a lot of freedom to attack your problem domain the way you best see fit.
If you're writing a networked application, don't use POSIX sockets, go and find a higher level library. If you're parsing complex text formats, don't iterate over buffers with char*'s, go pick up PEGTL[0]. If you're working on graphs, or need to properly index in-memory data, go pick up Boost[1][2]. If you need a GUI, go pick up Qt.
It's extremely common in C++, due to the lack of a universal package management solution, for people to try and "muddle through" and do shit themselves when it's far outside their core competency.
At one of my last employers, the core product was parsing JSON with std::regex, simply because they couldn't be bothered to integrate a JSON library.
[0] https://github.com/taocpp/PEGTL
[1] https://www.boost.org/doc/libs/1_76_0/libs/graph/
[2] https://www.boost.org/doc/libs/1_76_0/libs/multi_index/doc/i...
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Is there anything like sly for C++?
You are looking for Boost.Spirit (https://www.boost.org/doc/libs/1_76_0/libs/spirit/doc/x3/html/index.html) or PEGTL (https://github.com/taocpp/PEGTL)
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Why no more Lex/Yakk/ANTLR/whatever?
I personally prefer to use parsing combinator libraries in C++, where the "grammar" is just part of normal C++ and directly integrate. Examples are Boost.Spirit, pegtl, or (my own) lexy.
- Rust's Most Unrecognized Contributor
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Wondered if anyone is interested in a c++ parser combinators library?
While I'm not quite sure how this might transfer to your approach, with your Haskell-inspired style being quite different from our C++ templates, in the PEGTL our equivalent to your Char, which is called one, is variadic (true to the T in PEGTL a variadic template) and takes a list of possible matches.
What are some alternatives?
kangaru - ๐ฆ A dependency injection container for C++11, C++14 and later
lexy - C++ parsing DSL
American Fuzzy Lop - american fuzzy lop - a security-oriented fuzzer
cpp-peglib - A single file C++ header-only PEG (Parsing Expression Grammars) library
c-smart-pointers - Smart pointers for the (GNU) C programming language
spirit - Boost.org spirit module
gcc-poison - gcc-poison
C++ B-tree - Git mirror of the official (mercurial) repository of cpp-btree
outcome - Provides very lightweight outcome<T> and result<T> (non-Boost edition)
pybind11 - Seamless operability between C++11 and Python
stb - stb single-file public domain libraries for C/C++
sparsepp - A fast, memory efficient hash map for C++