fix panic for unprintable key presses

Checking is the associated rune of a key is printable solves our problem
of having panics whenever keys like `Home` or `Ctrl-W` are pressed.

Fixes #1175

1 files changed, 4 insertions, 2 deletions

diff --git a/pkg/gui/editors.go b/pkg/gui/editors.go
index e55ad58d4..5561fb0ce 100644
--- a/pkg/gui/editors.go
+++ b/pkg/gui/editors.go
@@ -1,6 +1,8 @@
 package gui
 
 import (
+	"unicode"
+
 	"github.com/jesseduffield/gocui"
 )
 
@@ -37,7 +39,7 @@ func (gui *Gui) commitMessageEditor(v *gocui.View, key gocui.Key, ch rune, mod g
 		v.EditGotoToStartOfLine()
 	case key == gocui.KeyCtrlE:
 		v.EditGotoToEndOfLine()
-	default:
+	case unicode.IsPrint(ch):
 		v.EditWrite(ch)
 	}
 
@@ -68,7 +70,7 @@ func (gui *Gui) defaultEditor(v *gocui.View, key gocui.Key, ch rune, mod gocui.M
 		v.EditGotoToStartOfLine()
 	case key == gocui.KeyCtrlE:
 		v.EditGotoToEndOfLine()
-	default:
+	case unicode.IsPrint(ch):
 		v.EditWrite(ch)
 	}