FA-100209 / Annotation span alignment / Member archive
Leading whitespace trim leaves annotation offsets stale · case 04
Leading whitespace trim leaves annotation offsets stale.
Case contract
Trim k characters from the front. Keep spans with end>k, clip start to k, and rebase surviving endpoints by k.
Why this case matters
A small offline annotation transformation keeps span coordinates explicit when text or token boundaries change.
One recorded failure
Sample boundary fixtureThis sample comes from the broken implementation of a controlled reproducer.
| Boundary fixture | Actual | Expected | Outcome |
|---|---|---|---|
| after trim | [[6, 9, "a"]] | [[2, 5, "a"]] | Failed |
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