noulith
IParse
noulith | IParse | |
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19 | 5 | |
1,117 | 11 | |
- | - | |
7.8 | 3.3 | |
16 days ago | 5 months ago | |
Rust | C++ | |
- | GNU General Public License v3.0 only |
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noulith
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-❄️- 2023 Day 7 Solutions -❄️-
[LANGUAGE: noulith] fork
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Raku: A Language for Gremlins
You might like noulith, a hobby language written by the person who won several of the recent Advent of Code events.
The about on GitHub reads "slaps roof of [programming language]* this bad boy can fit so much [syntax sugar] into it."
They even used the language in the most recent event Advent of Code and won. https://github.com/betaveros/noulith
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Is there a programming language that will blow my mind?
noulith is an interesting and elegant language for coding competitions. It's not really general purpose but has some ideas that could filter into general purpose languages.
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My first year of participation
Thanks for a great competition. I found another community I greatly enjoy to a be part of. Thank you Eric for a great place to be you created. Thanks to all the crazy people participating in this. I expected it to be competitive, but the reality goes over any limit. I learned a lot from the solutions of others.
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-🎄- 2022 Day 21 Solutions -🎄-
Noulith 24/22
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-🎄- 2022 Day 19 Solutions -🎄-
Noulith 193/351
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😬
my face when someone makes a language optimized for advent of code
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[2022 Day 16 (both parts)] Solutions Megathread early posts by language.
I think you are talking about betaveros right? If you check his github, he has a repo talking about it noulith. As I understood, it's a language he developped, that uses Rust compilor.
- Noulith: A new programming language by the current Advent of Code leader
IParse
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I Wrote a String Type
Nice library with many features. But I do not always understand the focus on memory usage. I guess that the reason behind this is that less memory allocations, have a positive effect on execution times. In a parser, where you often have to compare identifiers, it is a good idea to put all strings for identifiers into a unique pointer with the help of a hash table.
In my interpreting parser [1] I use a hexa hash tree [2] for storing identifiers. It is not very memory efficient, but very fast. It turns every string (from the input buffer) into a unique pointer for that string pointing to a copy of the string. In this way comparing string (identifiers) is equivalent to comparing pointers.
The idea of the hexa hash tree is that is a tree where each node has sixteen child nodes. Which node is selected is based on a step wise evaluated hash function that first takes the lower four bytes of the string, and after reaching the end of the string, the higher four bytes of the string. The nodes often taken up more memory space than the strings themselves.
[1] https://github.com/FransFaase/IParse/
[2] https://github.com/FransFaase/IParse/blob/master/software/Id...
- Noulith: A new programming language currently used by the Advent of Code leader
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The Tools I Use to Write Books (2018)
I wrote a tool that can process a number of MarkDown files with fragments of C code and put all those fragments in the right order to produce a file that can be compiled. It is grammar based and works with manipulating Abstract Syntax Trees, so I guess, it could be adapted for different programming languages. See: https://github.com/FransFaase/IParse#markdownc
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C++ Compile Time Parser Generator
Interesting. I have not looked into the code, but I wonder whether it is a compiler, or just an interpreter, e.g. it converts the grammar into some internal representation that is executed by an interpreter or virtual machine. I started worked on an interpreting parser in C many years ago. And later also made Java, C++ and JavaScript version of it. For the JavaScript implementation, see: https://fransfaase.github.io/ParserWorkshop/Online_inter_par... For the C++ version, see: https://github.com/FransFaase/IParse
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Parser generators vs. handwritten parsers: surveying major languages in 2021
I implemented an unparse function in IParse, which is not a parser generator, but a parser that interprets a grammar. See for example https://github.com/FransFaase/IParse/blob/master/software/c_... where symbols starting with a back slash are a kind of white space terminals during the unparse. For example, \inc stands for incrementing the indentation where \dec decrements it. The \s is used to indicate that at given location a space should be included.
What are some alternatives?
AdventOfCode
aoc - My Advent of Code solutions.
advent-of-code-2022
Crate - CrateDB is a distributed and scalable SQL database for storing and analyzing massive amounts of data in near real-time, even with complex queries. It is PostgreSQL-compatible, and based on Lucene.
inpla - Inpla: Interaction nets as a programming language (the current version)
ruby - The Ruby Programming Language
AoC - my personal repo for the advent of code yearly challenge
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.
aoc2022 - Advent of Code 2022 - my answers
wefx - Basic WASM graphics package to draw to an HTML Canvas using C. In the style of the gfx library
advent-of-code - Advent of Code solutions in JS
pp - PP - Generic preprocessor (with pandoc in mind) - macros, literate programming, diagrams, scripts...