pure-ruby

SNMP library in ruby (v1, v2c, v3)

Pure Ruby LR parser generator with racc-compatible grammars, EBNF extensions, diagnostics, and SLR/LALR/LR(1) backends.

Ruby-native lexer generator for parser authors. Write ordinary Ruby specs, run them at runtime, or generate deterministic Ruby for deployment.

Japanese seasonal and lunisolar calendar calculations in Ruby: 24 solar terms, 72 microseasons, observances, new moons, and date conversion.

A practical Perl 5 interpreter written in pure Ruby

Ruby Notebook Chronicles Explore Ruby the Interactive Way — Pure Ruby Series

Pure Ruby JPEG XL decoder and lossless Modular encoder with no native extensions.

Pure Ruby library and CLI for reading, composing, editing, and writing OpenUSD USDA and USDZ assets.