Clamp selection text bounds#9
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Summary
This prevents
SelectionManager.GetSelectionText()from passing out-of-range columns intoBufferLine.TranslateToString().Selection coordinates can come from pointer positions outside the terminal cell grid, for example dragging slightly left of the terminal before copying. A negative start column can currently produce an
IndexOutOfRangeExceptionwhile translating the selected line.The fix clamps start and end columns to the valid terminal column range before translating each selected line.
Validation
dotnet test src\XTerm.NET.slnx