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A titlecase digraph is reduced to an uppercase digraph · case 04
A titlecase digraph is reduced to an uppercase digraph.
Case contract
Titlecase every word using Unicode titlecase mappings.
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 | "\u01f1URO" | "\u01f2uro" | Failed |
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