FA-3959 / Text processing / Member archive
Cascaded substitutions rewrite newly inserted text · case 04
Cascaded substitutions rewrite newly inserted text.
Case contract
Simultaneously replace original a with b and original b with c, leaving other codepoints unchanged.
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 | "cc" | "bc" | Failed |
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