maciejhirsz

maciejhirsz/logos

Create ridiculously fast Lexers

3.5K stars 166 forks 3.5K watchers Rust Apache License 2.0

lexer lexer-generator parser parsing rust

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11 Open Issues Need Help Last updated: Aug 17, 2026

Open Issues Need Help

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Feature request: Lexer::morph variants that deal with extras 4 days ago

enhancement good first issue

maciejhirsz/logos

3.5K

Create ridiculously fast Lexers

Rust

#lexer#lexer-generator#parser#parsing#rust

True comparable cost (or performance) of usage scenarios 2 months ago

enhancement good first issue

maciejhirsz/logos

3.5K

Create ridiculously fast Lexers

Rust

#lexer#lexer-generator#parser#parsing#rust

The handbook docs should be move into the rustdoc 3 months ago

good first issue documentation book

maciejhirsz/logos

3.5K

Create ridiculously fast Lexers

Rust

#lexer#lexer-generator#parser#parsing#rust

Runtime stack overflow when lexing certain strings 9 months ago

bug help wanted question

maciejhirsz/logos

3.5K

Create ridiculously fast Lexers

Rust

#lexer#lexer-generator#parser#parsing#rust

Stackoverflow when deriving token with block comment regex 9 months ago

bug help wanted

maciejhirsz/logos

3.5K

Create ridiculously fast Lexers

Rust

#lexer#lexer-generator#parser#parsing#rust

Invalid output from token 9 months ago

help wanted question

maciejhirsz/logos

3.5K

Create ridiculously fast Lexers

Rust

#lexer#lexer-generator#parser#parsing#rust

Stack overflow at ~20,000 characters 9 months ago

bug help wanted

maciejhirsz/logos

3.5K

Create ridiculously fast Lexers

Rust

#lexer#lexer-generator#parser#parsing#rust

Regex seems to always take priority 9 months ago

bug duplicate help wanted

maciejhirsz/logos

3.5K

Create ridiculously fast Lexers

Rust

#lexer#lexer-generator#parser#parsing#rust

[BUG] Logos is unable to recover because of whitespace 9 months ago

bug help wanted

maciejhirsz/logos

3.5K

Create ridiculously fast Lexers

Rust

#lexer#lexer-generator#parser#parsing#rust

Lexer produces wrong tokens when more input is provided 9 months ago

bug help wanted

maciejhirsz/logos

3.5K

Create ridiculously fast Lexers

Rust

#lexer#lexer-generator#parser#parsing#rust

Small semver nit about 1 year ago

bug help wanted

maciejhirsz/logos

3.5K

Create ridiculously fast Lexers

Rust

#lexer#lexer-generator#parser#parsing#rust