kokke/tiny-regex-c

Health v2 · maintenance only

Flags: no_releases

Adoption not part of the score

1500 stars · 210 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

A small, portable regular expression library written in C, supporting a subset of Python's re-module syntax. It is designed for minimal resource usage with no dynamic memory allocation, making it suitable for embedded systems.

Use cases

• add regex matching to a C project without heavy dependencies
• pattern matching in embedded firmware with no malloc
• parse text with simple regex patterns in C
• validate string formats like dates or identifiers in C
• use regex on microcontrollers with limited RAM

When to choose

• you need regex in C with a tiny ~3kb binary footprint
• your target environment forbids dynamic memory allocation
• you only need basic regex operators without capture groups
• you want a single-file, easily auditable library

When to avoid

• you need capture groups, named groups, or advanced regex features
• you need full PCRE or Python re compatibility
• you need high performance on large inputs
• you rely on inverted character classes, which have known bugs

Facets

library · maturity stable

parser developer-tools parsers developer-tools programming-languages cross-platform c embedded regex embedded-friendly no-malloc small-footprint single-file

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