cpp-peglib
scope_guard
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| cpp-peglib | scope_guard | |
|---|---|---|
| 4 | 3 | |
| 827 | 160 | |
| - | - | |
| 5.8 | 3.7 | |
| 6 days ago | about 1 year ago | |
| C++ | C++ | |
| MIT License | The Unlicense |
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cpp-peglib
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-🎄- 2022 Day 13 Solutions -🎄-
I used yhirose's PEG (parsing expression grammar) libraryfor parsing.
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What are some cool modern libraries you enjoy using?
By the same author, https://github.com/yhirose/cpp-peglib is also very nice.
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A Good Tool for Resuming Parsers?
Most of the research into this sort of incremental and differential parsing unsurprisingly looks to be in the Haskell community, but I was hoping that someone here might know of some C++-friendly tools that might support generating parsers that support interruption and resuming. cpp-peglib looked really promising, but its parsers don't look like they can be engaged from any but the initial state.
- yhirose/cpp-peglib - A single file C++ header-only PEG (Parsing Expression Grammars) library
scope_guard
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Building a Cloud Database from Scratch: Why We Moved from C++ to Rust
E.g. see this implementation: https://ricab.github.io/scope_guard/
But also I should make the point that you generally don't need to write defer-like statements at all when using RAII because it's implemented in the actual type. So it's only more code overall for types that are used only once or maybe twice.
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Possible compiler error ?
Meanwhile I will check and use https://github.com/ricab/scope_guard
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Is WebAssembly magic performance pixie dust?
> low level details leak into your high level description of code, making the two coupled. You can’t make them invisible.
It's your job to make it not to leak. You have to write Modern C++ wrappers around C libs.
Similarity, The same can be said for Java. You can do low level in Java.
C++ is not C. C++ has backward compatibility with C.
Look at Boost folks, they wrote a Modern C++ wrapper around a C HTTP parser.
> And as I said, I’m familiar with RAII, it’s really great when the given object is scope-based, but can’t do anything otherwise.
Nothing is impossible.
You can use Scope Exit Guard with QT Widget.
https://github.com/ricab/scope_guard
> And if the new subclass has some non-standard object life cycle you HAVE to handle that case somewhere else, modifying another aspect of the code. It is not invisible, unless you want leaking code/memory corruption.
Again, Scope Exit Guards solve your problem!
What are some alternatives?
PEGTL - Parsing Expression Grammar Template Library
maddy - C++ Markdown to HTML header-only parser library
ctpg - Compile Time Parser Generator is a C++ single header library which takes a language description as a C++ code and turns it into a LR1 table parser with a deterministic finite automaton lexical analyzer, all in compile time.
expected-lite - expected lite - Expected objects in C++11 and later in a single-file header-only library
scnlib - scanf for modern C++
iswasmfast - Performance comparison of WebAssembly, C++ Addon, and native implementations of various algorithms in Node.js.
filter_spirit - Advanced item filter generator for Path of Exile that uses it's own DSL and online item price APIs
human-asmjs - Tips and tricks for writing asm.js as a human - Note: WebAssembly has replaced asm.js, so this is no longer maintained.
flex - The Fast Lexical Analyzer - scanner generator for lexing in C and C++
influxdb-cpp - 💜 C++ client for InfluxDB.
AoC-2022 - Advent of code 2022
expresscpp - Fast, unopinionated, minimalist web framework for C++ Perfect for building REST APIs