Add --look-ahead flag to limit visible upcoming words#47
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Implements a --look-ahead <N> option that shows only the next N upcoming words during the typing test, hiding the rest. This helps users focus on immediate words without being distracted by the full word list. - Add look_ahead: Option<usize> to Test struct and CLI - Modify words_to_spans to calculate visible_end based on look_ahead - Add 7 new tests (3 unit + 4 UI) covering visibility limits and clamping Closes #41 Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
- Clarify help text: past and current word always visible - Add test for look_ahead=0 (shows only current word) - Add test for look_ahead at last word (no upcoming to show) Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Summary
--look-ahead <N>CLI option that limits the number of visible upcoming words during a typing testNexceeds remaining words, visibility clamps to the end of the word list (no overflow)Test plan
Closes #41
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