Added a more generic way to push sources that deliver a token stream

independent of the actual input from the file. Change macro handling
to use the new input stack.
Fixed an error in FreeIf: If an unexpected .ENDIF was reached, the
assembler started an endless loop printing error messages.


git-svn-id: svn://svn.cc65.org/cc65/trunk@24 b7a2c559-68d2-44c3-8de9-860c34a00d81

src/ca65/condasm.h

@@ -52,6 +52,12 @@ void CheckOpenIfs (void);
  * open .ifs in this file.
  */
 
+unsigned GetIfStack (void);
+/* Get the current .IF stack pointer */
+
+void CleanupIfStack (unsigned SP);
+/* Cleanup the .IF stack, remove anything above the given stack pointer */
+
 
 
 /* End of condasm.h */