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74b7d0c951
This commit adds an `eof()` function for grammars, which is easier to use than the NUL byte directly. It compiles down to a constraint that the enclosing production can only reduce at end of input, not to a shiftable token. BREAKING CHANGE: Public error types for `tree-sitter-generate` were modified. Co-authored-by: Will Lillis <will.lillis24@gmail.com>
11 lines
330 B
JavaScript
11 lines
330 B
JavaScript
// A repeat item ending in `eof()` can match at most once. The EOF-gated
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// reduce must survive table minimization, so a second `text` is a parse
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// error rather than being silently accepted.
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export default grammar({
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name: 'eof_repeat_terminated',
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rules: {
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source_file: $ => repeat(seq('text', eof())),
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}
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});
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