FA-96198 / Postal address normalization / Member archive

Attention and care-of line extractor: the spelled care-of prefix is missing · case 03

"CARE OF FAKECO" is left as an address line.

Member previewVariant 3 · 3 implementations · 7 checks per implementation

Case contract

Input a list of lines. Each line is uppercased and whitespace-collapsed. The first line whose text starts with ATTENTION or ATTN, followed by end, space or colon, fills "attention"; likewise CARE OF or C/O fills "care_of"; the value is the remainder with leading spaces and colons removed. Every other line, including later duplicates, is kept in "lines".

Why this case matters

Recipient-routing lines must be separated from the delivery address before street and last-line parsing, or the attention name is parsed as a street.

One recorded failure

Sample boundary fixture

This sample comes from the broken implementation of a controlled reproducer.

Boundary fixture	Actual	Expected	Outcome
spelled care-of	`{"attention": "", "care_of": "", "lines": ["CARE OF FAKECO", "13 FAKE RD"]}`	`{"attention": "", "care_of": "FAKECO", "lines": ["13 FAKE RD"]}`	Failed

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