Add indent character option

cmd/micro/settings.go

@@ -74,6 +74,7 @@ func DefaultSettings() map[string]interface{} {
 	return map[string]interface{}{
 		"colorscheme":  "default",
 		"tabsize":      float64(4),
+		"indentchar":   "|",
 		"autoindent":   true,
 		"syntax":       true,
 		"tabsToSpaces": false,

cmd/micro/view.go

@@ -545,7 +545,12 @@ func (v *View) DisplayView() {
 			}
 
 			if ch == '\t' {
-				screen.SetContent(x+tabchars, lineN, ' ', nil, lineStyle)
+				lineIndentStyle := defStyle
+				if style, ok := colorscheme["indent-line"]; ok {
+					lineIndentStyle = style
+				}
+				indentChar := []rune(settings["indentchar"].(string))
+				screen.SetContent(x+tabchars, lineN, indentChar[0], nil, lineIndentStyle)
 				tabSize := int(settings["tabsize"].(float64))
 				for i := 0; i < tabSize-1; i++ {
 					tabchars++