UI: Fix editor markup on map fields that look like keywords

Author: chrisws

ChangeLog

@@ -10,6 +10,7 @@
 	Fix over scroll issue with line number widget
 	Fix screen dump invalid file name for online files
 	Fix file manager .bas file case sensitivity
+	Fix editor markup on map fields that look like keywords
 	Implemented editor F2 command to display online help
 	Implemented calling IMAGE with another image variable
 

src/ui/textedit.cpp

@@ -1130,6 +1130,11 @@ uint32_t TextEditInput::getHash(const char *str, int offs, int &count) {
     for (count = 0; count < keyword_max_len; count++) {
       char ch = str[offs + count];
       if (!isalpha(ch) && ch != '_') {
+        // non keyword character
+        while (isalnum(ch) || ch == '.' || ch == '_') {
+          // skip any program variable characters
+          ch = str[offs + count++];
+        }
         break;
       }
       result += tolower(str[offs + count]);