mbutterick/brag: Racket DSL for generating parsers from BNF grammars - brag

Racket DSL for generating parsers from BNF grammars

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Matthew Butterick 81f4fd25e7 lex double-quoted strings with Racket lexer (#32 ) Follow up on an idea in #31: use the Racket lexer to lex double-quoted strings in a grammar, thereby giving them all the semantics of Racket strings, and preventing any corner cases. This solution can’t be extended to single-quoted strings, however, because even with readtable tomfoolery to recognize a single quote as an opening delimiter for a string, the string still needs to be closed with a double quote. (I don’t know why this should be so, but it is the documented behavior.) Therefore single-quoted strings still are subject to the homegrown lexing solution and the flaws therein. Still, I don’t see that single-quoted strings have ever been a documented feature of brag (or its predecessor ragg). Perhaps they could be dropped altogether. For now, this solution is satisfying, because double-quoted strings are the dominant notation, and this PR will make them as good as they can be.		2 years ago
.github/workflows	enlarge test matrix with Racket 8	2 years ago
brag	scribble: fix indentation in file examples (#27 )	3 years ago
brag-lib	lex double-quoted strings with Racket lexer (#32 )	2 years ago
.gitignore	less is more	5 years ago
LICENSE.md	switch to MIT license	4 years ago
README.md	Update README.md	3 years ago
SUBLICENSE.md	Update SUBLICENSE.md	4 years ago

brag

Racket DSL for generating parsers from BNF grammars.

raco pkg install brag

MIT. See LICENSE.md

Complete. I will maintain the code but no major updates are planned.