Crash in RedrawTerminal: index out of range

[Peter2121]

I have a new type of crash after rebuilding of cbsd-tui:

Exception has occurred: panic
"runtime error: index out of range [70] with length 70"
Stack:
	 3  0x0000000000648ce5 in github.com/gcla/gowid/widgets/text.(*ContentToCellArray).ProcessCell
	     at /home/peter/go/pkg/mod/github.com/gcla/[email protected]/widgets/text/text.go:499
	 4  0x0000000000646d93 in github.com/gcla/gowid/widgets/text.Content.RangeOver
	     at /home/peter/go/pkg/mod/github.com/gcla/[email protected]/widgets/text/text.go:173
	 5  0x000000000064baf8 in github.com/gcla/gowid/widgets/text.(*Content).RangeOver
	     at <autogenerated>:1
	 6  0x00000000006499cb in github.com/gcla/gowid/widgets/text.Render
	     at /home/peter/go/pkg/mod/github.com/gcla/[email protected]/widgets/text/text.go:575
	 7  0x000000000064b754 in github.com/gcla/gowid/widgets/text.(*WidgetWithCursor).Render
	     at /home/peter/go/pkg/mod/github.com/gcla/[email protected]/widgets/text/text.go:822
	 8  0x0000000000670b36 in github.com/gcla/gowid/widgets/edit.Render
	     at /home/peter/go/pkg/mod/github.com/gcla/[email protected]/widgets/edit/edit.go:316
	 9  0x0000000000670574 in github.com/gcla/gowid/widgets/edit.(*Widget).Render
	     at /home/peter/go/pkg/mod/github.com/gcla/[email protected]/widgets/edit/edit.go:289
	10  0x000000000062ad53 in github.com/gcla/gowid.(*ContainerWidget).Render
	     at <autogenerated>:1
	11  0x0000000000642c14 in github.com/gcla/gowid/widgets/columns.RenderSubWidgets
	     at /home/peter/go/pkg/mod/github.com/gcla/[email protected]/widgets/columns/columns.go:677
	12  0x000000000063d939 in github.com/gcla/gowid/widgets/columns.(*Widget).RenderSubWidgets
	     at /home/peter/go/pkg/mod/github.com/gcla/[email protected]/widgets/columns/columns.go:214
	13  0x0000000000641f5a in github.com/gcla/gowid/widgets/columns.Render
	     at /home/peter/go/pkg/mod/github.com/gcla/[email protected]/widgets/columns/columns.go:620
	14  0x000000000063d7f4 in github.com/gcla/gowid/widgets/columns.(*Widget).Render
	     at /home/peter/go/pkg/mod/github.com/gcla/[email protected]/widgets/columns/columns.go:210
	15  0x00000000007324ec in main.(*EditWithScrollbar).Render
	     at /home/peter/Programming/golang/cbsd-tui/editwithscrollbar.go:104
	16  0x0000000000668be9 in github.com/gcla/gowid/widgets/styled.(*Widget).Render
	     at /home/peter/go/pkg/mod/github.com/gcla/[email protected]/widgets/styled/styled.go:113
	17  0x0000000000631974 in github.com/gcla/gowid/widgets/boxadapter.Render
	     at /home/peter/go/pkg/mod/github.com/gcla/[email protected]/widgets/boxadapter/boxadapter.go:105
	18  0x0000000000631094 in github.com/gcla/gowid/widgets/boxadapter.(*Widget).Render
	     at /home/peter/go/pkg/mod/github.com/gcla/[email protected]/widgets/boxadapter/boxadapter.go:71
	19  0x000000000064fa9c in github.com/gcla/gowid/widgets/framed.Render
	     at /home/peter/go/pkg/mod/github.com/gcla/[email protected]/widgets/framed/framed.go:232
	20  0x000000000064ed94 in github.com/gcla/gowid/widgets/framed.(*Widget).Render
	     at /home/peter/go/pkg/mod/github.com/gcla/[email protected]/widgets/framed/framed.go:182
	21  0x000000000062ad53 in github.com/gcla/gowid.(*ContainerWidget).Render
	     at <autogenerated>:1
	22  0x000000000066269a in github.com/gcla/gowid/widgets/pile.RenderSubwidgets.func1
	     at /home/peter/go/pkg/mod/github.com/gcla/[email protected]/widgets/pile/pile.go:495
	23  0x0000000000662b43 in github.com/gcla/gowid/widgets/pile.BoxMakerFunc.MakeBox
	     at /home/peter/go/pkg/mod/github.com/gcla/[email protected]/widgets/pile/pile.go:516
	24  0x0000000000663a91 in github.com/gcla/gowid/widgets/pile.RenderBoxMaker
	     at /home/peter/go/pkg/mod/github.com/gcla/[email protected]/widgets/pile/pile.go:667
	25  0x000000000065f9be in github.com/gcla/gowid/widgets/pile.(*Widget).RenderBoxMaker
	     at /home/peter/go/pkg/mod/github.com/gcla/[email protected]/widgets/pile/pile.go:219
	26  0x000000000066284e in github.com/gcla/gowid/widgets/pile.RenderSubwidgets
	     at /home/peter/go/pkg/mod/github.com/gcla/[email protected]/widgets/pile/pile.go:498
	27  0x000000000065f7f9 in github.com/gcla/gowid/widgets/pile.(*Widget).RenderSubWidgets
	     at /home/peter/go/pkg/mod/github.com/gcla/[email protected]/widgets/pile/pile.go:211
	28  0x0000000000661ac4 in github.com/gcla/gowid/widgets/pile.Render
	     at /home/peter/go/pkg/mod/github.com/gcla/[email protected]/widgets/pile/pile.go:444
	29  0x000000000065f3f4 in github.com/gcla/gowid/widgets/pile.(*Widget).Render
	     at /home/peter/go/pkg/mod/github.com/gcla/[email protected]/widgets/pile/pile.go:198
	30  0x000000000064fa9c in github.com/gcla/gowid/widgets/framed.Render
	     at /home/peter/go/pkg/mod/github.com/gcla/[email protected]/widgets/framed/framed.go:232
	31  0x000000000064ed94 in github.com/gcla/gowid/widgets/framed.(*Widget).Render
	     at /home/peter/go/pkg/mod/github.com/gcla/[email protected]/widgets/framed/framed.go:182
	32  0x0000000000668be9 in github.com/gcla/gowid/widgets/styled.(*Widget).Render
	     at /home/peter/go/pkg/mod/github.com/gcla/[email protected]/widgets/styled/styled.go:113
	33  0x00000000006370f0 in github.com/gcla/gowid/widgets/cellmod.Render
	     at /home/peter/go/pkg/mod/github.com/gcla/[email protected]/widgets/cellmod/cellmod.go:107
	34  0x0000000000636e54 in github.com/gcla/gowid/widgets/cellmod.(*Widget).Render
	     at /home/peter/go/pkg/mod/github.com/gcla/[email protected]/widgets/cellmod/cellmod.go:97
	35  0x000000000066e173 in github.com/gcla/gowid/widgets/dialog.(*Widget).Render
	     at <autogenerated>:1
	36  0x0000000000657430 in github.com/gcla/gowid/widgets/padding.Render
	     at /home/peter/go/pkg/mod/github.com/gcla/[email protected]/widgets/padding/padding.go:201
	37  0x0000000000657134 in github.com/gcla/gowid/widgets/padding.(*Widget).Render
	     at /home/peter/go/pkg/mod/github.com/gcla/[email protected]/widgets/padding/padding.go:169
	38  0x000000000065ca27 in github.com/gcla/gowid/widgets/overlay.Render
	     at /home/peter/go/pkg/mod/github.com/gcla/[email protected]/widgets/overlay/overlay.go:310
	39  0x000000000065ba94 in github.com/gcla/gowid/widgets/overlay.(*Widget).Render
	     at /home/peter/go/pkg/mod/github.com/gcla/[email protected]/widgets/overlay/overlay.go:226
	40  0x000000000067e653 in github.com/gcla/gowid/widgets/holder.(*Widget).Render
	     at <autogenerated>:1
	41  0x00000000006135bf in github.com/gcla/gowid.RenderRoot
	     at /home/peter/go/pkg/mod/github.com/gcla/[email protected]/support.go:835
	42  0x00000000006048da in github.com/gcla/gowid.(*App).RedrawTerminal
	     at /home/peter/go/pkg/mod/github.com/gcla/[email protected]/app.go:726
	43  0x0000000000604085 in github.com/gcla/gowid.(*App).RunThenRenderEvent
	     at /home/peter/go/pkg/mod/github.com/gcla/[email protected]/app.go:670
	44  0x000000000072998a in main.ExecShellCommand.func1
	     at /home/peter/Programming/golang/cbsd-tui/cbsd-tui.go:780

[Peter2121]

Quick and dirty fix:

--- text.go.bkp 2022-12-01 15:23:05.000000000 +0100
+++ text.go	2023-04-05 16:49:02.933408000 +0200
@@ -496,8 +496,10 @@
 var _ gowid.ICellProcessor = (*ContentToCellArray)(nil)

 func (m *ContentToCellArray) ProcessCell(cell gowid.Cell) gowid.Cell {
-	m.Cells[m.Cur] = cell
-	m.Cur += runewidth.RuneWidth(cell.Rune())
+	if len(m.Cells) > m.Cur {
+	        m.Cells[m.Cur] = cell
+	        m.Cur += runewidth.RuneWidth(cell.Rune())
+	}
 	return cell
 }