grammar-to-marser — grammar → Marser Rust converter

Supported

Grouping, sequences, and choice: (...), ~, |
Predicates and repetition: &, !, ?, *, +, {n}, {n,}, {,n}, {n,m}
Rule modifiers: silent _, atomic @, compound atomic $, non-atomic !
Strings, case-insensitive strings, ranges, and node tags: "...", ^"...", 'a'..'z', #name = expr
Implicit trivia via WHITESPACE and COMMENT rules
Builtins: SOI, EOI, ANY, NEWLINE, ASCII_DIGIT, ASCII_NONZERO_DIGIT, ASCII_BIN_DIGIT, ASCII_OCT_DIGIT, ASCII_HEX_DIGIT, ASCII_ALPHA_LOWER, ASCII_ALPHA_UPPER, ASCII_ALPHA, ASCII_ALPHANUMERIC
Right and mutual recursion, up to 12 rules per recursive group

Not yet supported

Stack constructs: PUSH, PUSH_LITERAL, POP, POP_ALL, DROP, PEEK, PEEK_ALL
Left recursion
Recursive groups larger than 12 rules
Pest-style Pair trees, spans, or .memoized()

Some unsupported constructs are still parsed so the editor can point at them precisely, but conversion fails with an explicit error. Generated output returns a typed Parsed<'src> enum with one variant per rule; tagged binds become named fields and leaf rules store their matched slice as value.