1 files changed, 78 insertions, 0 deletions
diff --git a/common.go b/common.go
new file mode 100644
index 0000000..27b96bd
--- /dev/null
+++ b/common.go
@@ -0,0 +1,78 @@
+package gui
+
+import "log"
+// import "errors"
+import "regexp"
+
+// functions for handling text related GUI elements
+
+func (n *Node) SetText(str string) bool {
+	if (Config.Debug.Change) {
+		log.Println("gui.SetText() value =", str)
+	}
+
+	return true
+}
+
+func (n *Node) GetText() string {
+	return "not implemented"
+}
+
+/*
+// string handling examples that might be helpful for normalizeInt()
+isAlpha := regexp.MustCompile(`^[A-Za-z]+$`).MatchString
+
+for _, username := range []string{"userone", "user2", "user-three"} {
+    if !isAlpha(username) {
+        fmt.Printf("%q is not valid\n", username)
+    }
+}
+
+const alpha = "abcdefghijklmnopqrstuvwxyz"
+
+func alphaOnly(s string) bool {
+   for _, char := range s {
+      if !strings.Contains(alpha, strings.ToLower(string(char))) {
+         return false
+      }
+   }
+   return true
+}
+*/
+
+func normalizeInt(s string) string {
+	// reg, err := regexp.Compile("[^a-zA-Z0-9]+")
+	reg, err := regexp.Compile("[^0-9]+")
+	if err != nil {
+		log.Println("normalizeInt() regexp.Compile() ERROR =", err)
+		return s
+	}
+	clean := reg.ReplaceAllString(s, "")
+	log.Println("normalizeInt() s =", clean)
+	return clean
+}
+
+func commonCallback(n *Node) {
+	// TODO: make all of this common code to all the widgets
+	if (n.OnChanged == nil) {
+		if (Config.Debug.Change) {
+			log.Println("Not Running n.OnChanged(n) == nil")
+		}
+	} else {
+		if (Config.Debug.Change) {
+			log.Println("Running n.OnChanged(n)")
+		}
+		n.OnChanged(n)
+	}
+
+	if (n.custom == nil) {
+		if (Config.Debug.Change) {
+			log.Println("Not Running n.custom(n) == nil")
+		}
+	} else {
+		if (Config.Debug.Change) {
+			log.Println("Running n.custom()")
+		}
+		n.custom()
+	}
+}