Mastodon

Jason WeatherlyOkay, added a few more features and I'm really liking the results. I added the `-` operator for `dice_groups` which was a bit more tricky than I thought it'd be. I also added the ability to roll a dice group multiple times via a `x`|`*` operator. I removed the requirement that a dice group has to have a damage type associated with it since the only way you can roll something like `1d4-1` is in a dice group since there is a minimum value of 1 associated with it.The code lives here: <a href="https://codeberg.org/JamesTheBard/dice-roller" rel="nofollow noopener" translate="no" target="_blank">https://codeberg.org/JamesTheBard/dice-roller</a><a href="https://social.linux.pizza/tags/python" class="mention hashtag" rel="nofollow noopener" target="_blank">#python</a> <a href="https://social.linux.pizza/tags/lark" class="mention hashtag" rel="nofollow noopener" target="_blank">#lark</a> <a href="https://social.linux.pizza/tags/parser" class="mention hashtag" rel="nofollow noopener" target="_blank">#parser</a> <a href="https://social.linux.pizza/tags/ttrpg" class="mention hashtag" rel="nofollow noopener" target="_blank">#ttrpg</a> <a href="https://social.linux.pizza/tags/diceroller" class="mention hashtag" rel="nofollow noopener" target="_blank">#diceroller</a> <a href="https://social.linux.pizza/tags/programming" class="mention hashtag" rel="nofollow noopener" target="_blank">#programming</a>

Jason WeatherlyOkay, _now_ I'm done. Fixed a few parser errors and implemented a skew option (the `^` value) that will push the average value towards either 1 or the maximum of the dice. I like that once you get the parser up and running that it's easy to add stuff to it. I now am the official owner of a completely overkill dice running program.For the example below, the skew is `2.0`. The random value is raised to the `1/skew` power before being multiplied by the number of sides of the die. If skew goes up, so do the results. If skew goes down, well, so do the results.``` $ python main.py "^2 (2d6+2d8+12)[fire]+1d8[piercing]" | jq . { "results": { "fire": 37, "piercing": 7 } } ```<a href="https://social.linux.pizza/tags/python" class="mention hashtag" rel="nofollow noopener" target="_blank">#python</a> <a href="https://social.linux.pizza/tags/statistics" class="mention hashtag" rel="nofollow noopener" target="_blank">#statistics</a> <a href="https://social.linux.pizza/tags/ttrpgs" class="mention hashtag" rel="nofollow noopener" target="_blank">#ttrpgs</a> <a href="https://social.linux.pizza/tags/dice" class="mention hashtag" rel="nofollow noopener" target="_blank">#dice</a> <a href="https://social.linux.pizza/tags/lark" class="mention hashtag" rel="nofollow noopener" target="_blank">#lark</a> <a href="https://social.linux.pizza/tags/parser" class="mention hashtag" rel="nofollow noopener" target="_blank">#parser</a>

claudeBefore starting the big work of porting my experimental <a href="https://post.lurk.org/tags/LiveCoding" class="mention hashtag" rel="nofollow noopener" target="_blank">#LiveCoding</a> <a href="https://post.lurk.org/tags/uzulang" class="mention hashtag" rel="nofollow noopener" target="_blank">#uzulang</a> <a href="https://post.lurk.org/tags/godwit" class="mention hashtag" rel="nofollow noopener" target="_blank">#godwit</a> 's <a href="https://post.lurk.org/tags/parser" class="mention hashtag" rel="nofollow noopener" target="_blank">#parser</a> from <a href="https://post.lurk.org/tags/Alex" class="mention hashtag" rel="nofollow noopener" target="_blank">#Alex</a> and <a href="https://post.lurk.org/tags/Happy" class="mention hashtag" rel="nofollow noopener" target="_blank">#Happy</a> to <a href="https://post.lurk.org/tags/Parsec" class="mention hashtag" rel="nofollow noopener" target="_blank">#Parsec</a>, I finally managed to get a snapshot working in <a href="https://post.lurk.org/tags/Termux" class="mention hashtag" rel="nofollow noopener" target="_blank">#Termux</a> on my phone by making a tarball including the generated <a href="https://post.lurk.org/tags/Haskell" class="mention hashtag" rel="nofollow noopener" target="_blank">#Haskell</a> files on a machine where Alex and Happy were available and transferring it over network.This isn't ideal as I can't edit the parser on my phone (no Alex/Happy there; at least not recent enough versions, old ones got via cjacker's Hugs 2019 improvement), so I still want to switch to Parsec which is not so horribly <a href="https://post.lurk.org/tags/GHC" class="mention hashtag" rel="nofollow noopener" target="_blank">#GHC</a> -only (Parsec has a version that works with <a href="https://post.lurk.org/tags/MicroHs" class="mention hashtag" rel="nofollow noopener" target="_blank">#MicroHs</a> and probably <a href="https://post.lurk.org/tags/Hugs" class="mention hashtag" rel="nofollow noopener" target="_blank">#Hugs</a> <a href="https://post.lurk.org/tags/HaskellHugs" class="mention hashtag" rel="nofollow noopener" target="_blank">#HaskellHugs</a> too).I put the snapshot at <a href="https://mathr.co.uk/web/godwit.html#Download" rel="nofollow noopener" translate="no" target="_blank">https://mathr.co.uk/web/godwit.html#Download</a> and meanwhile updated the bootstrap script as patching MicroHs isn't necessary any more.

Jan :rust: :ferris:mdq - by yshavit<a href="https://github.com/yshavit/mdq" rel="nofollow noopener" translate="no" target="_blank">https://github.com/yshavit/mdq</a>like <a href="https://floss.social/tags/jq" class="mention hashtag" rel="nofollow noopener" target="_blank">#jq</a> but for <a href="https://floss.social/tags/Markdown" class="mention hashtag" rel="nofollow noopener" target="_blank">#Markdown</a>: find specific elements in an md docAlso available as a crate: <a href="https://docs.rs/mdq/latest/mdq/" rel="nofollow noopener" translate="no" target="_blank">https://docs.rs/mdq/latest/mdq/</a>Tagging <a href="https://fosstodon.org/@wader" class="u-url mention" rel="nofollow noopener" target="_blank">@wader</a> 😉 <a href="https://floss.social/tags/CLI" class="mention hashtag" rel="nofollow noopener" target="_blank">#CLI</a> <a href="https://floss.social/tags/Parser" class="mention hashtag" rel="nofollow noopener" target="_blank">#Parser</a> <a href="https://floss.social/tags/Rust" class="mention hashtag" rel="nofollow noopener" target="_blank">#Rust</a> <a href="https://floss.social/tags/RustLang" class="mention hashtag" rel="nofollow noopener" target="_blank">#RustLang</a>

Henrik JernevadAny <a href="https://mastodon.social/tags/TOML" class="mention hashtag" rel="nofollow noopener" target="_blank">#TOML</a> nerds? Would you say this is valid TOML? (I'm building a parser.)``` inline = { array = [ 1, 2 ] } ```The spec says "No newlines are allowed between the curly braces unless they are valid within a value."This includes multi-line strings, but do you interpret it to permit newlines in an array? The array itself is technically a single value inside which newlines are valid. It is obviously not "in the spirit" of inline tables but the ABNF grammar allows it.<a href="https://mastodon.social/tags/programming" class="mention hashtag" rel="nofollow noopener" target="_blank">#programming</a> <a href="https://mastodon.social/tags/parser" class="mention hashtag" rel="nofollow noopener" target="_blank">#parser</a>

Hacker NewsOptimizing a Math Expression Parser in Rust<a href="https://rpallas.xyz/math-parser/" rel="nofollow noopener" translate="no" target="_blank">https://rpallas.xyz/math-parser/</a><a href="https://mastodon.social/tags/HackerNews" class="mention hashtag" rel="nofollow noopener" target="_blank">#HackerNews</a> <a href="https://mastodon.social/tags/Optimizing" class="mention hashtag" rel="nofollow noopener" target="_blank">#Optimizing</a> <a href="https://mastodon.social/tags/Math" class="mention hashtag" rel="nofollow noopener" target="_blank">#Math</a> <a href="https://mastodon.social/tags/Expression" class="mention hashtag" rel="nofollow noopener" target="_blank">#Expression</a> <a href="https://mastodon.social/tags/Parser" class="mention hashtag" rel="nofollow noopener" target="_blank">#Parser</a> <a href="https://mastodon.social/tags/Rust" class="mention hashtag" rel="nofollow noopener" target="_blank">#Rust</a> <a href="https://mastodon.social/tags/Programming" class="mention hashtag" rel="nofollow noopener" target="_blank">#Programming</a> <a href="https://mastodon.social/tags/RustLang" class="mention hashtag" rel="nofollow noopener" target="_blank">#RustLang</a> <a href="https://mastodon.social/tags/Coding" class="mention hashtag" rel="nofollow noopener" target="_blank">#Coding</a> <a href="https://mastodon.social/tags/Efficiency" class="mention hashtag" rel="nofollow noopener" target="_blank">#Efficiency</a>

HabrQapGen: Создаём мощные парсеры на C++QapDSLv2 — это язык который транслируется в обычный C++ код. Он позволяет удобно и компактно задавать грамматики/правила разбора кода программ, значительно упрощая разработку компиляторов/анализаторов/трансляторов. QapGen — это генератор дерева_лексеров /парсеров описанных на QapDSLv2. Сама грамматика QapDSLv2 описана на QapDSLv2 на 100%. Поэтому QapGen как основной читатель этой грамматики сам генерирует часть своего кода(весь парсер QapDSLv2). Основные фишки QapDSLv2 + QapGen — это: 1) Отсутствие этапа токенизации — дерево лексеров разбивает входной поток на лексемы и сохраняет их в строго типизированных древовидных С++ структурах пропуская этап токенизации. 2) Генерация оптимизированного кода полиморфных лексеров . 3) Полное сохранение всех лексем(даже разделители сохраняются, такие как пробелы/переходы на новую строку и комментарии) в результирующем дереве. 4) Возможность сохранить как оригинальное дерево , так и модифицированное обратно в код/текст без потери разделителей/комментариев . 5) Автоматическая генерация кода посетителей (это такой паттерн проектирования). А теперь пример самой сочной части(рекурсивно самоописывающийся код): struct t_target_struct:i_target_item{ struct t_keyword{ string kw=any_str_from_vec(split("struct,class",",")); " "? // optional separator }; struct t_body_semicolon:i_struct_impl{";"}; struct t_body_impl:i_struct_impl{ "{" // жрём скобочку vector<TAutoPtr<i_target_item>> nested?; // рекурсия! " "? vector<TAutoPtr<i_struct_field>> arr?; // парсим поля " "? TAutoPtr<t_cpp_code> c?; // остальной С++ код " "? "}" }; struct t_parent{ string a_or_c=any_str_from_vec(split("=>,:",",")); " "? t_name name; }; //точка входа в парсер: TAutoPtr<t_keyword> kw?; //парсим struct/class t_name name; //парсим имя " "? TAutoPtr<t_parent> parent?; " "? TAutoPtr<i_struct_impl> body; };<a href="https://habr.com/ru/articles/925420/" rel="nofollow noopener" translate="no" target="_blank">https://habr.com/ru/articles/925420/</a><a href="https://zhub.link/tags/parser" class="mention hashtag" rel="nofollow noopener" target="_blank">#parser</a> <a href="https://zhub.link/tags/parsergenerator" class="mention hashtag" rel="nofollow noopener" target="_blank">#parsergenerator</a> <a href="https://zhub.link/tags/lexers" class="mention hashtag" rel="nofollow noopener" target="_blank">#lexers</a> <a href="https://zhub.link/tags/c" class="mention hashtag" rel="nofollow noopener" target="_blank">#c</a>++ <a href="https://zhub.link/tags/tree" class="mention hashtag" rel="nofollow noopener" target="_blank">#tree</a> <a href="https://zhub.link/tags/ast" class="mention hashtag" rel="nofollow noopener" target="_blank">#ast</a> <a href="https://zhub.link/tags/gamedev" class="mention hashtag" rel="nofollow noopener" target="_blank">#gamedev</a> <a href="https://zhub.link/tags/dsl" class="mention hashtag" rel="nofollow noopener" target="_blank">#dsl</a> <a href="https://zhub.link/tags/compiler" class="mention hashtag" rel="nofollow noopener" target="_blank">#compiler</a>

HabrКак создать свой парсер и AST-генератор на C++ с минимальными усилиями: знакомьтесь с QapDSLv2QapDSLv2: Новый стандарт AST-heavy парсинга QapDSLv2 обеспечивает: Молниеносное построение AST Полное сохранение структуры исходного кода Простоту интерпретации и модификации грамматик Забудьте о любы других парсерах! С помощью QapDSLv2 можно создавать компиляторы/анализаторы/форматировщики кода за минуты/часы. // почти наглая лож Парсеры и генерация абстрактных синтаксических деревьев ( AST ) — это обычно долго, сложно и требует тонны шаблонного кода. Но что если я скажу, что теперь можно описывать грамматики и структуры данных одновременно и получать готовый, оптимизированный C++ код автоматически? QapDSLv2 — новый стандарт эффективности и удобства в парсинге . Это язык описания парсеров, который избавляет от синтаксического шума, упрощает интеграцию с C++ и позволяет создавать сложные анализаторы без боли и ошибок . Забудьте о бесконечных циклах отладки и непонятных генераторах — теперь всё просто, понятно и эффективно. В этой статье вы узнаете, как QapDSL v2 меняет правила игры в мире парсинга и компиляторов, увидите реальные примеры и поймёте, почему это важно для каждого, кто работает с языками программирования и обработкой текста . Готовы ускорить разработку и вывести свои проекты на новый уровень? QapGen — мощный генератор парсеров, построенный на основе QapDSLv2, который из грамматик QapDSLv2 сразу создаёт высокопроизводительный C++ парсер с типизированным AST , описанным прямо в грамматике. t_sep { string body = any (" \t\r\n"); } using " " as t_sep; t_value{ TAutoPtr<i_value> body; " "? } t_comma_value{ "," t_value body; " "? } t_array=>i_value{ "[" " "? t_value first?; vector<t_comma_value> arr?; "]" " "? }<a href="https://habr.com/ru/articles/922128/" rel="nofollow noopener" translate="no" target="_blank">https://habr.com/ru/articles/922128/</a><a href="https://zhub.link/tags/QapDSL" class="mention hashtag" rel="nofollow noopener" target="_blank">#QapDSL</a> <a href="https://zhub.link/tags/Lexers" class="mention hashtag" rel="nofollow noopener" target="_blank">#Lexers</a> <a href="https://zhub.link/tags/AST" class="mention hashtag" rel="nofollow noopener" target="_blank">#AST</a> <a href="https://zhub.link/tags/Compilers" class="mention hashtag" rel="nofollow noopener" target="_blank">#Compilers</a> <a href="https://zhub.link/tags/Parser" class="mention hashtag" rel="nofollow noopener" target="_blank">#Parser</a> <a href="https://zhub.link/tags/parsergenerator" class="mention hashtag" rel="nofollow noopener" target="_blank">#parsergenerator</a> <a href="https://zhub.link/tags/Parsers" class="mention hashtag" rel="nofollow noopener" target="_blank">#Parsers</a> <a href="https://zhub.link/tags/C" class="mention hashtag" rel="nofollow noopener" target="_blank">#C</a>++ <a href="https://zhub.link/tags/dsl" class="mention hashtag" rel="nofollow noopener" target="_blank">#dsl</a>

Dzokero<a href="https://pol.social/@siwa" class="u-url mention" rel="nofollow noopener" target="_blank">@siwa</a> Polska warcząca <a href="https://mastodon.social/tags/parser" class="mention hashtag" rel="nofollow noopener" target="_blank">#parser</a> Sorki, ale mi się jakoś skojarzyło ;)

HabrСистема аналитики и презентации данных с учётом ограничений системы FСистема аналитики и презентации данных — мой проект, который я выполнял в рамках курсовых работ во время обучения в институте. Описал основные шаги, идеи и поделился своими успехами.<a href="https://habr.com/ru/articles/916854/" rel="nofollow noopener" translate="no" target="_blank">https://habr.com/ru/articles/916854/</a><a href="https://zhub.link/tags/%D0%B0%D0%BD%D0%B0%D0%BB%D0%B8%D1%82%D0%B8%D0%BA%D0%B0" class="mention hashtag" rel="nofollow noopener" target="_blank">#аналитика</a> <a href="https://zhub.link/tags/%D1%80%D0%B0%D0%B7%D1%80%D0%B0%D0%B1%D0%BE%D1%82%D0%BA%D0%B0" class="mention hashtag" rel="nofollow noopener" target="_blank">#разработка</a> <a href="https://zhub.link/tags/python" class="mention hashtag" rel="nofollow noopener" target="_blank">#python</a> <a href="https://zhub.link/tags/streamlit" class="mention hashtag" rel="nofollow noopener" target="_blank">#streamlit</a> <a href="https://zhub.link/tags/parser" class="mention hashtag" rel="nofollow noopener" target="_blank">#parser</a>

Jan :rust: :ferris:In which I have Opinions about parsing and grammars - by Simon Tatham<a href="https://www.chiark.greenend.org.uk/~sgtatham/quasiblog/parsing/" rel="nofollow noopener" translate="no" target="_blank">https://www.chiark.greenend.org.uk/~sgtatham/quasiblog/parsing/</a><a href="https://floss.social/tags/ProgrammingLanguage" class="mention hashtag" rel="nofollow noopener" target="_blank">#ProgrammingLanguage</a> <a href="https://floss.social/tags/PLT" class="mention hashtag" rel="nofollow noopener" target="_blank">#PLT</a> <a href="https://floss.social/tags/Parser" class="mention hashtag" rel="nofollow noopener" target="_blank">#Parser</a> <a href="https://floss.social/tags/Parsing" class="mention hashtag" rel="nofollow noopener" target="_blank">#Parsing</a> <a href="https://floss.social/tags/Grammar" class="mention hashtag" rel="nofollow noopener" target="_blank">#Grammar</a>

Abhinav 🌏The tiny but complete <a href="https://fantastic.earth/tags/JSON" class="mention hashtag" rel="nofollow noopener" target="_blank">#JSON</a> <a href="https://fantastic.earth/tags/parser" class="mention hashtag" rel="nofollow noopener" target="_blank">#parser</a> that I wrote in <a href="https://fantastic.earth/tags/Haskell" class="mention hashtag" rel="nofollow noopener" target="_blank">#Haskell</a> years ago is now featured in the 200-and-change collection of programs by <a href="https://hachyderm.io/@dubroy" class="u-url mention" rel="nofollow noopener" target="_blank">@dubroy</a>: <a href="https://pdubroy.github.io/200andchange" rel="nofollow noopener" translate="no" target="_blank">https://pdubroy.github.io/200andchange</a><a href="https://fantastic.earth/tags/programming" class="mention hashtag" rel="nofollow noopener" target="_blank">#programming</a>

sumanthvepaHad an enjoyable afternoon building a custom <a href="https://mastodon.social/tags/cli" class="mention hashtag" rel="nofollow noopener" target="_blank">#cli</a> <a href="https://mastodon.social/tags/parser" class="mention hashtag" rel="nofollow noopener" target="_blank">#parser</a> to replace <a href="https://mastodon.social/tags/argparse" class="mention hashtag" rel="nofollow noopener" target="_blank">#argparse</a> in our internal tooling. I like its ease of use. But it is a custom parser and works only for my specific use case, but for use case it does more than argparse can and is simpler to use. <a href="https://mastodon.social/tags/comandline" class="mention hashtag" rel="nofollow noopener" target="_blank">#comandline</a> <a href="https://mastodon.social/tags/python" class="mention hashtag" rel="nofollow noopener" target="_blank">#python</a>

Inautilo<a href="https://mastodon.social/tags/Development" class="mention hashtag" rel="nofollow noopener" target="_blank">#Development</a> <a href="https://mastodon.social/tags/Launches" class="mention hashtag" rel="nofollow noopener" target="_blank">#Launches</a> ESLint can now lint HTML · The code linter delivers a new language plugin <a href="https://ilo.im/163v4b" rel="nofollow noopener" translate="no" target="_blank">https://ilo.im/163v4b</a>_____ <a href="https://mastodon.social/tags/ESLint" class="mention hashtag" rel="nofollow noopener" target="_blank">#ESLint</a> <a href="https://mastodon.social/tags/OpenSource" class="mention hashtag" rel="nofollow noopener" target="_blank">#OpenSource</a> <a href="https://mastodon.social/tags/Coding" class="mention hashtag" rel="nofollow noopener" target="_blank">#Coding</a> <a href="https://mastodon.social/tags/Linter" class="mention hashtag" rel="nofollow noopener" target="_blank">#Linter</a> <a href="https://mastodon.social/tags/Parser" class="mention hashtag" rel="nofollow noopener" target="_blank">#Parser</a> <a href="https://mastodon.social/tags/HTML" class="mention hashtag" rel="nofollow noopener" target="_blank">#HTML</a> <a href="https://mastodon.social/tags/Npm" class="mention hashtag" rel="nofollow noopener" target="_blank">#Npm</a> <a href="https://mastodon.social/tags/WebDev" class="mention hashtag" rel="nofollow noopener" target="_blank">#WebDev</a> <a href="https://mastodon.social/tags/Frontend" class="mention hashtag" rel="nofollow noopener" target="_blank">#Frontend</a>

golangTree-Sitter: From Code to Syntax-Tree I’m Shailendra, and in this article, I’m going to talk ... <a href="https://dev.to/shailendra_kumargupta_bd/tree-sitter-from-code-to-syntax-tree-45op" rel="nofollow noopener" target="_blank">https://dev.to/shailendra_kumargupta_bd/tree-sitter-from-code-to-syntax-tree-45op</a> <a rel="nofollow noopener" class="mention hashtag" href="https://mastodon.social/tags/treesitter" target="_blank">#treesitter</a> <a rel="nofollow noopener" class="mention hashtag" href="https://mastodon.social/tags/go" target="_blank">#go</a> <a rel="nofollow noopener" class="mention hashtag" href="https://mastodon.social/tags/syntaxtree" target="_blank">#syntaxtree</a> <a rel="nofollow noopener" class="mention hashtag" href="https://mastodon.social/tags/parser" target="_blank">#parser</a> <a href="https://awakari.com/pub-msg.html?id=51pshLx0gZ9JKbLhmISr9SYbmjY&interestId=golang" rel="nofollow noopener" target="_blank">Result Details</a>

HoldMyTypeP : yml -> nix & yml -> python T : yml -> python <a href="https://mathstodon.xyz/tags/parser" class="mention hashtag" rel="nofollow noopener" target="_blank">#parser</a>

GNU/Linux.chPDF parsenManchmal muss man PDF-Dateien auslesen. Dieser Artikel zeigt, wie man das mit einem Python-Skript macht. <a href="https://social.anoxinon.de/tags/PDF" class="mention hashtag" rel="nofollow noopener" target="_blank">#PDF</a> <a href="https://social.anoxinon.de/tags/Parser" class="mention hashtag" rel="nofollow noopener" target="_blank">#Parser</a> <a href="https://social.anoxinon.de/tags/parsen" class="mention hashtag" rel="nofollow noopener" target="_blank">#parsen</a> <a href="https://social.anoxinon.de/tags/Auslesen" class="mention hashtag" rel="nofollow noopener" target="_blank">#Auslesen</a> <a href="https://social.anoxinon.de/tags/pypdf" class="mention hashtag" rel="nofollow noopener" target="_blank">#pypdf</a> <a href="https://social.anoxinon.de/tags/Linux" class="mention hashtag" rel="nofollow noopener" target="_blank">#Linux</a><a href="https://gnulinux.ch/pdf-parsen" rel="nofollow noopener" translate="no" target="_blank">https://gnulinux.ch/pdf-parsen</a>

Hacker NewsParcom: CL Parser Combinators<a href="https://github.com/fosskers/parcom" rel="nofollow noopener" translate="no" target="_blank">https://github.com/fosskers/parcom</a><a href="https://mastodon.social/tags/HackerNews" class="mention hashtag" rel="nofollow noopener" target="_blank">#HackerNews</a> <a href="https://mastodon.social/tags/Parcom" class="mention hashtag" rel="nofollow noopener" target="_blank">#Parcom</a> <a href="https://mastodon.social/tags/CL" class="mention hashtag" rel="nofollow noopener" target="_blank">#CL</a> <a href="https://mastodon.social/tags/Parser" class="mention hashtag" rel="nofollow noopener" target="_blank">#Parser</a> <a href="https://mastodon.social/tags/Combinators" class="mention hashtag" rel="nofollow noopener" target="_blank">#Combinators</a> <a href="https://mastodon.social/tags/HackerNews" class="mention hashtag" rel="nofollow noopener" target="_blank">#HackerNews</a> <a href="https://mastodon.social/tags/Programming" class="mention hashtag" rel="nofollow noopener" target="_blank">#Programming</a> <a href="https://mastodon.social/tags/Languages" class="mention hashtag" rel="nofollow noopener" target="_blank">#Languages</a> <a href="https://mastodon.social/tags/GitHub" class="mention hashtag" rel="nofollow noopener" target="_blank">#GitHub</a>

XavierI finally got around to wrapping up and publishing a first version of my <a href="https://sunny.garden/tags/Rust" class="mention hashtag" rel="nofollow noopener" target="_blank">#Rust</a> crate ts-typed-ast. It's a crate inspired by Rowan that automatically generates a typed AST from a tree-sitter grammar. You can find it here: <a href="https://crates.io/crates/ts-typed-ast" rel="nofollow noopener" translate="no" target="_blank">https://crates.io/crates/ts-typed-ast</a>It works similarly to Rowan and Swift's libsyntax. tree-sitter provides the green nodes, while this crate generates the red nodes.I've used it a few times already, to prototype various toy programming languages. You write a grammar in tree-sitter, and then either evaluate the ts-typed-ast tree directly, or convert it to some other IR.Using tree-sitter as the parser generator for a toy project is pretty nice. You get a powerful, declarative way to create a parser, and at the same time you benefit from the whole tree-sitter ecosystem. Things like incremental parsing, syntax highlighting, structural editing, and formatting with Topiary.Main downside is that tree-sitter does not (yet) offer good error reporting and recovery, so when parsing fails it's often in dramatic, unhelpful ways. Not a big issue for experimenting, which is what this crate is for. Production-ready languages probably need bespoke parsers anyway.<a href="https://sunny.garden/tags/parser" class="mention hashtag" rel="nofollow noopener" target="_blank">#parser</a> <a href="https://sunny.garden/tags/treesitter" class="mention hashtag" rel="nofollow noopener" target="_blank">#treesitter</a> <a href="https://sunny.garden/tags/pl" class="mention hashtag" rel="nofollow noopener" target="_blank">#pl</a> <a href="https://sunny.garden/tags/programming" class="mention hashtag" rel="nofollow noopener" target="_blank">#programming</a>

Hacker NewsA high-throughput parser for the Zig programming language<a href="https://github.com/Validark/Accelerated-Zig-Parser" rel="nofollow noopener" translate="no" target="_blank">https://github.com/Validark/Accelerated-Zig-Parser</a><a href="https://mastodon.social/tags/HackerNews" class="mention hashtag" rel="nofollow noopener" target="_blank">#HackerNews</a> <a href="https://mastodon.social/tags/highthroughput" class="mention hashtag" rel="nofollow noopener" target="_blank">#highthroughput</a> <a href="https://mastodon.social/tags/parser" class="mention hashtag" rel="nofollow noopener" target="_blank">#parser</a> <a href="https://mastodon.social/tags/Zig" class="mention hashtag" rel="nofollow noopener" target="_blank">#Zig</a> <a href="https://mastodon.social/tags/programminglanguage" class="mention hashtag" rel="nofollow noopener" target="_blank">#programminglanguage</a> <a href="https://mastodon.social/tags/GitHub" class="mention hashtag" rel="nofollow noopener" target="_blank">#GitHub</a> <a href="https://mastodon.social/tags/Validark" class="mention hashtag" rel="nofollow noopener" target="_blank">#Validark</a>

Recent searches

Search options

Administered by:

Server stats:

#parser