Menu & MenuBar experience improvements

ui/util.go

@@ -1,5 +1,25 @@
 package ui
 
+import "unicode"
+
+// QuickCharInString is used for finding the "quick char" in a string. A quick char
+// suffixes a '_' (underscore). So basically, this function returns any rune after
+// an underscore. The rune is always made lowercase. The bool returned is whether
+// the rune was found.
+func QuickCharInString(s string) (bool, rune) {
+	runes := []rune(s)
+	for i, r := range runes {
+		if r == '_' {
+			if i+1 < len(runes) {
+				return true, unicode.ToLower(runes[i+1])
+			} else {
+				return false, ' '
+			}
+		}
+	}
+	return false, ' '
+}
+
 // Max returns the larger integer.
 func Max(a, b int) int {
 	if a > b {