fix(text): improve effective space width calculation in wrapLine function#128
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Jul 5, 2026
… for #128 (#130) PR #128 made wrapLine measure the real separator string so multi-space runs are counted at their true width, but that added a measureText call per word gap even for the dominant single ' ' case — on the Canvas backend that's a ctx.measureText per gap during layout. Reuse the precomputed spaceWidth when the separator is exactly one space and only measure multi-char runs. Also adds the unit tests #128 landed without: multi-space separators wrap at their real width and are preserved when the line fits, ZWSP runs stay zero-width, and the single-space path uses the precomputed width. Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
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