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datalog: tokenizer raises on unterminated block comment (249/249)
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Bug: `/* unclosed` was silently consumed to EOF, swallowing any
Datalog code that followed inside the (never-closing) comment.
Programs would produce empty parses with no error.

Fix: skip-block-comment! now raises when it hits EOF without
finding `*/`. Error message includes the position where the
problem was first detected. Line comments (`%`) and properly
closed block comments (`/* ... */`) are unaffected.

1 new tokenize test verifies the error path.
This commit is contained in:
giles
2026-05-10 20:59:33 +00:00
parent 2a1d8eeab2
commit 4b5e75dc3e
4 changed files with 19 additions and 7 deletions
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lib/datalog/scoreboard.md
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@@ -1,10 +1,10 @@
# datalog scoreboard
**248 / 248 passing** (0 failure(s)).
**249 / 249 passing** (0 failure(s)).
| Suite | Passed | Total | Status |
|-------|--------|-------|--------|
| tokenize | 26 | 26 | ok |
| tokenize | 27 | 27 | ok |
| parse | 22 | 22 | ok |
| unify | 28 | 28 | ok |
| eval | 36 | 36 | ok |