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rose-ash/lib/datalog/tests
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datalog: tokenizer raises on unexpected characters (256/256)
Bug: characters not recognised by any branch of `scan!` (`?`,
`!`, `#`, `@`, `&`, `|`, `\\`, `^`, etc.) were silently consumed
via `(else (advance! 1) (scan!))`. Programs with typos would
parse to a stripped version of themselves with no warning —
`?(X).` became `(X).` and produced confusing downstream errors.

Fix: the else branch now raises a clear "unexpected character"
error with the offending char and its position.

1 new tokenize test.
2026-05-10 21:17:07 +00:00
..