FA-3027 / Text processing / Member archive
Empty-pattern replacement misses text boundaries · case 02
Empty-pattern replacement misses text boundaries.
Case contract
Insert a vertical bar at every boundary using empty substring replacement.
Why this case matters
A local executable model for consumers of structured text; oracle values are authored literals, not outputs copied from the repaired implementation.
One recorded failure
Sample boundary fixtureThis sample comes from the broken implementation of a controlled reproducer.
| Boundary fixture | Actual | Expected | Outcome |
|---|---|---|---|
| boundary 1 | "a|b" | "|a|b|" | Failed |
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