title bar renaming

src/basic/string16.cpp

@@ -313,3 +313,29 @@ String16 SkipWhitespace(String16 *string) {
     return begin;
 }
 
+// chop this - :324
+String16 ChopNumberEx(String16 *string) {
+    String16 col = {};
+    for (int64_t i = string->len - 1; i >= 0; i -= 1) {
+        if (IsDigit(string->data[i])) {
+            col.data = string->data + i;
+            col.len += 1;
+        } else if (string->data[i] == L':') {
+            break;
+        } else {
+            return {};
+        }
+    }
+    *string = Chop(*string, col.len + 1);
+    return col;
+}
+
+Int ChopNumber(String16 *string) {
+    Scratch  scratch;
+    String16 col = ChopNumberEx(string);
+    if (col.len == 0) return -1;
+    String num_string = ToString(scratch, col);
+    Int    result     = strtoll(num_string.data, NULL, 10) - 1;
+
+    return result;
+}