Separated the emulation features in a module.

Add a new command line option --feature that allows to set emulation
features from the command line.


git-svn-id: svn://svn.cc65.org/cc65/trunk@311 b7a2c559-68d2-44c3-8de9-860c34a00d81

src/ca65/scanner.c

@@ -493,6 +493,18 @@ static void NextChar (void)
 
 
 
+void LocaseSVal (void)
+/* Make SVal lower case */
+{
+    unsigned I = 0;
+    while (SVal [I]) {
+	SVal [I] = tolower (SVal [I]);
+     	++I;
+    }
+}
+
+
+
 void UpcaseSVal (void)
 /* Make SVal upper case */
 {