Introducing ArkRegex
Introducing ArkRegexA drop-in replacement for new RegExp() with types Regular expressions are ubiquitous in modern code. A few characters sprinkled into your JavaScript can validate and parse strings that would require dozens of lines of imperative logic. However, that concision comes at a cost. Complex expressions can be hard to understand and type safety is a pipe dream- or at least, it was. Int
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TypeScript 5.5ã§ã€@graphemeclusterã•ã‚“ã«ã‚ˆã£ã¦æ£è¦è¡¨ç¾ãƒªãƒ†ãƒ©ãƒ«ã®æ§‹æ–‡ãƒã‚§ãƒƒã‚¯ãŒå°Žå…¥ã•ã‚Œã¾ã—ãŸðŸŽ‰ ã“ã®æ§‹æ–‡ãƒã‚§ãƒƒã‚¯ã«ã‚ˆã£ã¦ã€æ£è¦è¡¨ç¾ã«é–“é•ã„ãŒã‚ã£ãŸå ´åˆã€äº‹å‰ã«TypeScriptãŒã‚¨ãƒ©ãƒ¼ã‚’出力ã—ã¦ãã‚Œã¾ã™ã€‚ ã“ã®æ©Ÿèƒ½ã«ã¤ã„ã¦ã€æ¬¡ã®ã“ã¨ãŒæ°—ã«ãªã£ãŸã®ã§èª¿ã¹ã¦ã¿ã¾ã—ãŸã€‚ ã©ã‚“ãªæ§‹æ–‡ãŒã‚¨ãƒ©ãƒ¼ã«ãªã‚‹ã‹ ãªãœå°Žå…¥ã•ã‚ŒãŸã‹ ã©ã†ã‚„ã£ã¦ãƒã‚§ãƒƒã‚¯ã—ã¦ã„ã‚‹ã‹ JavaScriptã§å®Ÿè¡Œã§ãã‚‹ãŒTypeScriptã§ã‚¨ãƒ©ãƒ¼ã«ãªã‚‹æ§‹æ–‡ã¯ã‚ã‚‹ã‹ ESLintã¨ã®ã‚«ãƒãƒ¼ç¯„囲ã®é•ã„ 本記事ã«é–¢ã—ã¦ã€èª¤ã‚Šç‰ãŒã‚ã‚Œã°æŒ‡æ‘˜ã„ãŸã ã‘ã‚‹ã¨å¬‰ã—ã„ã§ã™ã€‚ ã©ã‚“ãªæ§‹æ–‡ãŒã‚¨ãƒ©ãƒ¼ã«ãªã‚‹ã‹ TypeScript 5.5ã§ã¯ã€æ£è¦è¡¨ç¾ã«é–¢ã™ã‚‹ã‚¨ãƒ©ãƒ¼ãƒ¡ãƒƒã‚»ãƒ¼ã‚¸ãŒ40å€‹ç¨‹åº¦è¿½åŠ ã•ã‚Œã¦ã„ã¾ã™ã€‚ 例ãˆã°ã€ä¸‹è¨˜ã®ã‚ˆã†ãªæ§‹æ–‡ã¯ã€5.5ã§ã‚¨ãƒ©ãƒ¼ã«ãªã‚Šã¾ã™ã€‚ // å˜åœ¨ã—ãªã„フラグ var re = /a/b; // エラー
ECMAScript proposal: RegExp flag `/v` makes character classes and character class escapes more powerful
ECMAScript proposal: RegExp flag /v makes character classes and character class escapes more powerful In this blog post, we look at the ECMAScript proposal “RegExp v flag with set notation + properties of strings†by Markus Scherer and Mathias Bynens. The new flag /v  # The proposed new regular expression flag /v (.unicodeSets) enables three features: Support for multi-code-point graphemes (such a
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ã€2023/05/17 変更】 2023å¹´5月㮠TC39 会è°ã§ Stage 4 ã«ãªã£ãŸãŸã‚ã€ã‚¿ã‚¤ãƒˆãƒ«ã‚’変更 HTML Standard ã® pattern 属性ã«å–ã‚Šè¾¼ã¾ã‚ŒãŸã®ã§ä¿®æ£ ES2024 RegExp v (unicodeSets) フラグ ES2024 ã« RegExp v (unicodeSets) フラグã¨ã„ã†ã‚‚ã®ãŒã‚ã‚Šã¾ã™ã€‚ã“ã‚Œã¯æ—¢å˜ã® u (unicode) フラグを改善ã—ã¦ç½®ãæ›ãˆã€æ©Ÿèƒ½è¿½åŠ ã™ã‚‹ã“ã¨ã‚’目的ã¨ã—ã¦ã„ã¾ã™ã€‚ 詳ã—ã„内容ã«ã¤ã„ã¦ã¯ V8 ã‚„ 2ality ã«ã‚ˆã‚‹è§£èª¬è¨˜äº‹ãŒè©³ã—ã„ã§ã™ã€‚ã“ã“ã§ã¯ãã®æ¦‚è¦ã‚’ピックアップã—ã¦è¿°ã¹ãŸã„ã¨æ€ã„ã¾ã™ã€‚ 複数ã®ã‚³ãƒ¼ãƒ‰ãƒã‚¤ãƒ³ãƒˆã‹ã‚‰ãªã‚‹çµµæ–‡å—ã®å¯¾å¿œï¼ˆUnicode Properties of Strings） ES2015 ã« u (unicode) フラグãŒå°Žå…¥ã•ã‚Œã€ã‚³ãƒ¼ãƒ‰ãƒã‚¤ãƒ³ãƒˆå˜ä½ã§æ£è¦è¡¨ç¾ã‚’扱ãˆã‚‹ã‚ˆã†ã«ãªã‚Šã¾ã—ãŸã€‚
æ£è¦è¡¨ç¾ã¨ã‚»ã‚ュリティ / Regular Expressions and Their Security-Related Aspects
2020/03/15 ã«ãŠèŒ¶ã®æ°´å¥³å大å¦å†…ã§ã‚»ã‚ュリティ・ã‚ャンプ (https://www.security-camp.or.jp/) ã®å®£ä¼ã‚’ã—ãŸéš›ã«ã€ãã‚Œã«åˆã‚ã›ã¦å°ã•ãªè¬›ç¾©ã‚’æä¾›ã—ã¾ã—ãŸã€‚ã“ã‚Œã¯ãã®ç™ºè¡¨è³‡æ–™ã§ã™ã€‚ --- 誤りを見ã¤ã‘ãŸã‚‰ã€Twitter (https://twitter.c…
substack/safe-regex: detect possibly catastrophic, exponential-time regular expressions
safe-regex detect potentially catastrophic exponential-time regular expressions by limiting the star height to 1 WARNING: This module merely seems to work given all the catastrophic regular expressions I could find scouring the internet, but I don't have enough of a background in automata to be absolutely sure that this module will catch all exponential-time cases. example
SemVer | Regex DB
Matches SemVer (Semantic Versioning) strings. The string MAY start with a "v" but it is not matched. /(?<=^[Vv]|^)(?:(?<major>(?:0|[1-9](?:(?:0|[1-9])+)*))[.](?<minor>(?:0|[1-9](?:(?:0|[1-9])+)*))[.](?<patch>(?:0|[1-9](?:(?:0|[1-9])+)*))(?:-(?<prerelease>(?:(?:(?:[A-Za-z]|-)(?:(?:(?:0|[1-9])|(?:[A-Za-z]|-))+)?|(?:(?:(?:0|[1-9])|(?:[A-Za-z]|-))+)(?:[A-Za-z]|-)(?:(?:(?:0|[1-9])|(?:[A-Za-z]|-))+)?)|(
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GitHub - antfu/oniguruma-to-js: Covert Oniguruma-flavor Regexp to JavaScript native RegExp.
GitHub - slevithan/regex: JS regexes âž• future. A template tag for readable, high-performance, native JS regexes with extended syntax, context-aware interpolation, and always-on best practices.
GitHub - tc39/proposal-regex-escaping: Proposal for investigating RegExp escaping for the ECMAScript standard
174931 – Implement RegExp lookbehind assertions
GitHub - unjs/magic-regexp: A compiled-away, type-safe, readable RegExp alternative
GitHub - browserslist/browserslist-useragent-regexp: A utility to compile browserslist query to a RegExp to test browser useragent.
Support Es6+ RegExp flags 'u' and 'y' in PeepholeSubstituteAlternateS… · google/closure-compiler@389590f
Verbose Regular Expressions in JavaScript
GitHub - zikaari/onigasm: Oniguruma regex library on the web using WebAssembly
GitHub - fent/ret.js: Tokenizes a string that represents a regular expression.
Report error when trying to transpile ES2018 RegExp named capture group. · google/closure-compiler@edc4c33 · GitHub
GitHub - sola-da/ReDoS-vulnerabilities: A list of ReDoS vulnerabilities in npm modules found by the Software Lab at TU Darmstadt. For each vulnerability, there is a proof-of-concept exploit, showing how the slowdown may occur. The resources in this reposi
Regex DB
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