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徒然Ruby（４４）Raccパーサ・ジェãƒãƒ¬ãƒ¼ã‚¿ - ãŠã‚‚ã“ã‚“
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8/19ã«é–‹å‚¬ã•ã‚ŒãŸRubyKaigi 2023 follow upã§ã€Rubyã®parserã¨parser generatorã«é–¢ã™ã‚‹é€²æ—ã¨ä»Šå¾Œã®æ–¹é‡ã«ã¤ã„ã¦è©±ã‚’ã—ã¦ãã¾ã—ãŸã€‚ rhc.connpass.com 当日ã®è³‡æ–™ã¯ã“ã¡ã‚‰ã«ã‚¢ãƒƒãƒ—ãƒãƒ¼ãƒ‰ã—ã¦ã‚ã‚Šã¾ã™ã€‚ speakerdeck.com 進æ—ã¨ã“ã‚Œã‹ã‚‰ã®è©± RubyKaigiã§ã®ç™ºè¡¨ã‚’è¸ã¾ãˆã¦3ã¤ã®ç‚¹ã«ã¤ã„ã¦RubyKaigiã‹ã‚‰ã®é€²æ—ã¨ã“ã‚Œã‹ã‚‰ã®è©±ã‚’ã—ã¾ã—ãŸã€‚ Error-tolerant Universal Parser Maintainability Lramaã¨ã¯ github.com Rubyã§ã‹ã‹ã‚ŒãŸLALR parser generatorã§ã™ã€‚BNFをベースã«ã—ãŸDSL(parse.y)ã‚’å—ã‘å–ã£ã¦ã€C言語実装ã®LALR parserを生æˆã—ã¾ã™ã€‚ç¾åœ¨ã®CRubyã¯LramaãŒç”Ÿæˆã—ãŸparserを使用ã—ã¦ã„ã¾ã™ã€‚ E
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Rubyパーサーを一新ã™ã‚‹prism（旧YARP）プãƒã‚¸ã‚§ã‚¯ãƒˆã®å…¨å®¹ã¨å°†æ¥ï¼ˆç¿»è¨³ï¼‰ï½œTechRacho by BPSæ ªå¼ä¼šç¤¾
æ¦‚è¦ åŽŸè‘—è€…ã®è¨±è«¾ã‚’å¾—ã¦ç¿»è¨³ãƒ»å…¬é–‹ã„ãŸã—ã¾ã™ã€‚ 英語記事: Rewriting the Ruby parser | Rails at Scale 原文公開日: 2023/06/12 原著者: Kevin Newton サイト: Rails at Scale | The Ruby and Rails Infrastructure team at Shopify exists to help ensure that Ruby and Rails are 100-year tools that will continue to merit being our toolchain of choice. CC BY-NC-SA 4.0 Deed | 表示 - éžå–¶åˆ© - 継承 4.0 国際 | Creative Commons 日本語タイトルã¯å†…容ã«å³ã—ãŸã‚‚ã®ã«ã—ã¾ã—ãŸã€‚ ãªãŠã€æœ¬è¨˜äº‹ã§ã¯ã€Œãƒ‘ーサー
Parser generators vs. handwritten parsers: surveying major language implementations in 2021 | notes.eatonphil.com
Parser generators vs. handwritten parsers: surveying major language implementations in 2021 Developers often think parser generators are the sole legit way to build programming language frontends, possibly because compiler courses in university teach lex/yacc variants. But do any modern programming languages actually use parser generators anymore? To find out, this post presents a non-definitive s
Rewriting the Ruby parser
At Shopify, we have spent the last year writing a new Ruby parser, which we’ve called YARP (Yet Another Ruby Parser). As of the date of this post, YARP can parse a semantically equivalent syntax tree to Ruby 3.3 on every Ruby file in Shopify’s main codebase, GitHub’s main codebase, CRuby, and the 100 most popular gems downloaded from rubygems.org. We recently got approval to merge this work into C
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Ruby Parser開発日誌 (5) - Lrama LALR (1) parser generatorを実装ã—㟠- ã‹ãã“ã«ã£ã
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Ruby Parser開発日誌 (1) - ã‹ãã“ã«ã£ã
Error Tolerant parserã«é–¢ã™ã‚‹ã‚¢ã‚¤ãƒ‡ã‚¢ 9月åŠã°ã«è¡Œã‚ã‚ŒãŸRubyKaigi 2022以æ¥ã€3ヶ月ãらã„Error Tolerant parserã«ã¤ã„ã¦èª¿ã¹ãŸã‚Šè€ƒãˆãŸã‚Šå®Ÿè£…ã‚’ã—ãŸã‚Šã—ã¦ã„ã¾ã™ã€‚ 途ä¸ã§ã‚‚ã„ã„ã‹ã‚‰ãªã«ã‹ã«ã‚¢ã‚¦ãƒˆãƒ—ットã—ã¦ãŠãã¨ã‚ˆã„ã¨ã„ã†ã‚¢ãƒ‰ãƒã‚¤ã‚¹ã‚’もらã£ãŸã®ã§ã€ä»Šç¾åœ¨ã®çŠ¶æ³ã‚„考ãˆã¦ã„ã‚‹ã“ã¨ã‚’書ã„ã¦ãŠã“ã†ã¨æ€ã„ã¾ã™ã€‚ Error Tolerant parserã¨ã¯? ã©ã†ã—ã¦ãã‚ŒãŒæ¬²ã—ã„ã®? 通常parserã¯ãƒ¦ãƒ¼ã‚¶ãƒ¼ã®å…¥åŠ›ã‚’å—ã‘å–ã‚Š ãã®å…¥åŠ›ãŒãã®ãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°è¨€èªžã«ã¨ã£ã¦ã€validãªã‚‚ã®ã‹å¦ã‹ã‚’ãƒã‚§ãƒƒã‚¯ validãªå ´åˆã€ãã®å¾Œã®å·¥ç¨‹ã«ã¨ã£ã¦éƒ½åˆã®ã„ã„ãƒ‡ãƒ¼ã‚¿æ§‹é€ (例ãˆã°AST)ã«å¤‰æ›ã—ã€å¾Œå·¥ç¨‹ã«æ¸¡ã™ invalidãªå ´åˆã€Syntax Errorをレãƒãƒ¼ãƒˆã™ã‚‹ ã¨ã„ã£ãŸå‡¦ç†ã‚’è¡Œã„ã¾ã™ã€‚ ã—ã‹ã—IDEã‚„LSP(Language Server Proto
Syntax Tree - @ledsun blog
rubykaigi.org Rubyã®ãƒ‘ーサーを書ãç›´ãã†ã¨ã„ã†é‡Žå¿ƒçš„ãªãƒ—ãƒã‚¸ã‚§ã‚¯ãƒˆã‚’æŒã£ã¦ã„る人ã®ç™ºè¡¨ã§ã™ã€‚ プãƒã‚¸ã‚§ã‚¯ãƒˆã«å¯¾ã™ã‚‹ãƒ¢ãƒãƒ™ãƒ¼ã‚·ãƒ§ãƒ³ã«é–¢ã—ã¦ã¯ã“ã¡ã‚‰ã®ãƒ„イートã®ã‚¹ãƒ¬ãƒƒãƒ‰ã‚’見るã®ãŒã‚ˆã„ã¨æ€ã„ã¾ã™ã€‚ Since @yukihiro_matz mentioned it on stage at #rubykaigi... Yes! I'm going to be rewriting the Ruby parser. I'm super super excited about this, and you should be too! Below is a brief thread about how and why, but tl;dr: portability, error tolerance, and maintainability.— Kevin Newton (@kddnewt
I Built a Ruby Parser | My Point of View
Sorry, this post will read like a “dear diary†entry rather than some life-changing HN-worthy guidance. Back in November 2020, almost on a whim I started work on a new parser for the Ruby programming language. It was almost exactly a year after I had started working on my compiler project (I hope to write a longer post about that someday soon), and in my frustration with the state of affairs with
Lezer
The Lezer Parser System The problem of parsing structured text has resisted one-size-fits all solutions for over 60 years. Lezer isn't such a solution either, but it is a very decent parser generator, especially well suited for use in code editors. Lezer (the Dutch word for reader, pronounced like “laserâ€) provides a parser generator that outputs JavaScript modules, which can be loaded to parse co
個人的㫠Ruby parser ã«ã¤ã„ã¦ã¾ã¨ã‚ã¦ã¿ãŸ - 虚無庵
youtu.be RubyKaigi Takeout 2021 ã® Ruby Committers vs the World ã§è°é¡Œã«ãªã£ãŸã€ŒA maintainable, flexible, and usable Ruby parserã€éƒ¨åˆ†ã ã‘個人的ã«æ°—ã«ãªã£ãŸã®ã§ã¾ã¨ã‚ã¦ã¿ãŸ*1。 A maintainable, flexible, and usable Ruby parser（ä¿å®ˆæ€§ã€æŸ”軟性ã€ä½¿ç”¨æ€§ã«å„ªã‚ŒãŸ Ruby パーサー） Objective Make the parser easy to maintain Make the parser useful for LSP (VS Code/IDE) Problems The current parse.y is a hell LSP often requires more detailed syntax tree (concre
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The future vision of Ruby Parser
GitHub - puntorigen/ruby_parser: Pure JS Ruby file parser
GitHub - ruby-syntax-tree/syntax_tree: Interact with the Ruby syntax tree
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