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fix: prevent integer divide by zero panic in AutoMerge table rendering - #430
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When rendering a table configured with AutoMerge and empty/zero visible columns or when columns are suppressed, reBalanceMaxMergedColumnLengths previously divided by numMergedColumns or columnsRemaining without checking for zero, causing an integer divide by zero runtime panic. Guard rebalancing by returning early when numColumns or maxColumnLengths is empty, and verify divisor positive bounds. Add regression tests in TestTable_Render_AutoMerge_EdgeCases. Fixes jedib0t#426
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Closing in favor of earlier community PR #427 to keep the review queue clean. |
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When rendering a table configured with AutoMerge and empty/zero visible columns or when columns are suppressed, reBalanceMaxMergedColumnLengths previously divided by numMergedColumns or columnsRemaining without checking for zero, causing an integer divide by zero runtime panic.
Guard rebalancing by returning early when numColumns or maxColumnLengths is empty, and verify divisor positive bounds. Add regression tests in TestTable_Render_AutoMerge_EdgeCases.
Fixes #426