FA-100232 / Annotation span alignment / Member archive
Token coverage ratio counts only fully contained tokens · case 02
Token coverage ratio counts only fully contained tokens.
Case contract
Return covered token-character width divided by total token width, rounded to six decimal places; return 0.0 when total width is zero.
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 |
|---|---|---|---|
| partial tokens | 0.0 | 0.25 | Failed |
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