FA-96017 / Postal address normalization / Member archive

Address label line wrapper: repeated spaces become empty words · case 02

"1 FAKE RD" keeps its runs of spaces on the label.

Member previewVariant 2 · 3 implementations · 6 checks per implementation

Case contract

Input [text, width, max_lines]. Words are whitespace-separated. A word longer than width first flushes the current line, then is emitted in width-sized chunks, the final remainder continuing as an ordinary word. Words join with single spaces while the line length stays <= width. Return {"lines": the first max_lines lines, "overflow": whether more than max_lines lines were needed}.

Why this case matters

Label printers and carrier manifests cap line length and line count; an off-by-one silently truncates part of the address.

One recorded failure

Sample boundary fixture

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

Boundary fixture	Actual	Expected	Outcome
repeated spaces collapse	`{"lines": ["2 FAKE RD"], "overflow": false}`	`{"lines": ["2 FAKE RD"], "overflow": false}`	Failed

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