Regular expression
A regular expression (shortened as regex or regexp), sometimes referred to as rational expression, is a sequence of characters that specifies a match pattern in text. Usually such patterns are used by string-searching algorithms for "find" or "find and replace" operations on strings, or for input validation.
Regular expression techniques are developed in theoretical computer science and formal language theory. They are used in search engines, in search and replace dialogs of word processors and text editors, in text processing utilities such as sed and AWK, and in lexical analysis. Regular expressions are also supported in many programming languages.
Different syntaxes for writing regular expressions have existed since the 1980s, one being the POSIX standard and another, widely used, being the Perl syntax.
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Statically-checked inline matching on regular expressions in Scala
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Context-aware regex template tag with best practices built-in and advanced features
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Extended JavaScript regular expressions
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Rename files in bulk.
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A compiled-away, type-safe, readable RegExp alternative
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A static analyzer to scan JavaScript code for problematic regular expressions.
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dregex is a Java library that implements a regular expression engine using deterministic finite automata (DFA). It supports some Perl-style features and yet retains linear matching time, and also offers set operations.
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A command-line tool and Rust library with Python bindings for generating regular expressions from user-provided test cases
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🎓 BioNet / TCC / Sistemas de Informação
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Extract emails from a file.
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ESLint plugin for finding regex mistakes and style guide violations.
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This is a basic regular expression simulator
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Simplified Python compiler for the Mini Pascal language.
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Generate strings that match a Regular Expression pattern
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Java port of ICU4C regular expressions
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🤠 Functional utilities using object property paths with wildcards and regexps 🌵
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An opinionated list of regular expression tools, tutorials, libraries, etc.
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