Clarify IsNameStartChar() - resolve issue 250
diff --git a/tinyxml2.h b/tinyxml2.h
index 530160f..7f997aa 100755
--- a/tinyxml2.h
+++ b/tinyxml2.h
@@ -552,9 +552,14 @@
     }

     

     inline static bool IsNameStartChar( unsigned char ch ) {

-        return ( ( ch < 128 ) ? isalpha( ch ) : 1 )

-               || ch == ':'

-               || ch == '_';

+        if ( ch >= 128 ) {

+            // This is a heuristic guess in attempt to not implement Unicode-aware isalpha()

+            return true;

+        }

+        if ( isalpha( ch ) ) {

+            return true;

+        }

+        return ch == ':' || ch == '_';

     }

     

     inline static bool IsNameChar( unsigned char ch ) {