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mbutterick / brag

Racket DSL for generating parsers from BNF grammars [moved to https://git.matthewbutterick.com/mbutterick/brag]
https://git.matthewbutterick.com/mbutterick/brag
MIT License
61 stars 12 forks source link

support numerical repetition quantifiers #5

Closed mbutterick closed 6 years ago

mbutterick commented 6 years ago

pat{5} = exactly 5 pat{5,} = 5 or more pat{,5} = up to 5 pat{2,5} = between 2 and 5 pat{} = none

mbutterick commented 6 years ago

Done in 4d349837a605b4345b22da107a8daeb5da0cc695