Steven Kalt
SummaryThis is a cautionary tale about how I ended up writing a (bad) regular expression parser and evaluator in pure TypeScript types. type HexStr<S extends string> = Recognize<"[0-9a-fA-F]+", S>; type IsMatch<S extends string> = HexStr<S> extends S ? true : false; const isHex: IsMatch<"deadbeef"> = true const notHex: IsMatch<"nope"> = false The novelty here is parsing and evaluating regular expr
JSã§æ›¸ã‹ã‚ŒãŸECMAScript RegExpパーサーã®æ¯”較 | Memory ice cubes
OXCã§æ£è¦è¡¨ç¾ãƒ‘ーサーを実装ã—ã¦ã‚‹ã¨ãã«å…¨éƒ¨ä¸€é€šã‚Šèªã‚“ã§ã¿ã¦ã€ã¿ã‚“ãªé•ã£ã¦ã¿ã‚“ãªè‰¯ã„ã£ã¦ãªã£ãŸã®ã§ã€‚ 候補ã¯ã“ã¡ã‚‰ã®3ã¤ã€‚ https://github.com/jviereck/regjsparser https://github.com/DmitrySoshnikov/regexp-tree https://github.com/eslint-community/regexpp ã‹ã®AST Explorerã§ã‚‚ã€RegExp部門ã§ã¯ã“ã®3ã¤ãŒãƒªã‚¹ãƒˆã«ã‚る。 AST explorer https://astexplorer.net/ å‰æ ECMAScript本体ã ã¨ã€ESTreeã¨ã„ã†ãƒ‡ãƒ•ã‚¡ã‚¯ãƒˆãŒã‚ã‚‹ã‘ã©ã€æ®‹å¿µãªãŒã‚‰RegExpã«ã¯ãªã„。 ESTreeã§ã®RegExpã®æ‰±ã„ã¯ã“ã‚“ãªæ„Ÿã˜ã§ã€ãŸã ã®æ–‡å—列ã§ã—ã‹ãªã„。 interface RegExpLiteral <: Literal
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GitHub - slevithan/regex: Regex template tag for readable, high-performance, native JS regexes, with context-aware interpolation and always-on best practices
regex is a template tag that extends JavaScript regular expressions with features from other leading regex libraries that make regexes more powerful and dramatically more readable. It returns native RegExp instances that run with native performance, and can exceed the performance of regex literals you'd write yourself. It's also lightweight, has no dependencies, supports all ES2025 regex features,
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A comprehensive guide to the dangers of Regular Expressions in JavaScript
I first heard about regular expression denial of service (ReDoS) vulnerabilities from GitHub's Dependabot. Several of my projects over the years have had dependencies that suffered from ReDoS vulnerabilities, and I would bet that if you've built any JavaScript project with dependencies, you've also come across this. This got me thinking; if there are vulnerable regular expressions in our dependenc
Regular expressions in JavaScript
The string is arguably the most essential data type in programming; every programming language and software in the world uses strings in one way or another. It enables humans to easily communicate with sophisticated programs and machines. One thing that would help you a lot as a programmer is understanding how to use and manipulate strings so that you can build programs users can utilize efficient
JavaScriptã§å¹³ä»®å(ã²ã‚‰ãŒãª)を判定ã™ã‚‹ - Qiita
regex = /*ã“ã“ã«ä½•ã‚‰ã‹ã®æ£è¦è¡¨ç¾*/; regex.test("ã‚ã„ã†ãˆãŠ"); // -> true regex.test("ã‚ã"); // -> true regex.test("aiueo"); // -> false regex.test("ã‚ã„ueo"); // -> false regex.test("ã‚ã„ ã†ãˆãŠ"); // -> false
GitHub - pemistahl/grex-js: A JavaScript / WebAssembly library for generating regular expressions from user-provided test cases
grex is a library that is meant to simplify the often complicated and tedious task of creating regular expressions. It does so by automatically generating a single regular expression from user-provided test cases. The resulting expression is guaranteed to match the test cases which it was generated from. This project has started as a Rust port of the JavaScript tool regexgen written by Devon Govet
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GitHub - antfu/oniguruma-to-js: Covert Oniguruma-flavor Regexp to JavaScript native RegExp.
JavaScript ä¸ RegExp 與å—串å–代的神奇特性
allow escape for more characters in u not just v? · Issue #27 · tc39/proposal-regexp-v-flag
GitHub - unjs/magic-regexp: A compiled-away, type-safe, readable RegExp alternative
GitHub - tc39/proposal-regexp-atomic-operators
Random String Generator
GitHub - mathiasbynens/regexpu-core: regexpu’s core functionality, i.e. `rewritePattern(pattern, flag, options)`, which enables rewriting regular expressions that make use of the ES6 `u` flag into equivalent ES5-compatible regular expression patterns.
GitHub - bnjmnt4n/regjsgen: Generate regular expressions from regjsparser’s AST.
GitHub - jviereck/regjsparser: Parsing the JavaScript's RegExp in JavaScript.
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