FA-80302 / Typography line breaking / Member archive

Balanced headline wrapping: final layout width · case 02

The balanced width is computed but lines are laid out at the full width.

Member previewVariant 2 · 3 implementations · 8 checks per implementation

Case contract

Input [words, width]. Let L be the greedy line count at width (["overflow"] if a word is wider). Find the smallest width w (>= longest word) whose greedy wrap needs no more than L lines, then return the greedy wrap at w.

Why this case matters

Line breaking decides where paragraphs wrap on screen and in print; a wrong decision point shifts every following line.

One recorded failure

Sample boundary fixture

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

Boundary fixture	Actual	Expected	Outcome
regression: final layout width	`["at grid", "measure a", "x is", "baseline", "is"]`	`["at grid", "measure", "a x is", "baseline", "is"]`	Failed

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