+Wed Apr 26 12:58:46 2006 Ben Pfaff <blp@gnu.org>
+
+ Improve the way we handle the various parsing "states". Until now
+ we've hard-coded the state transitions in the command definition
+ file, but that's error-prone and, worse, it's redundant--we can
+ figure out what state we're in anyhow. We can cleanly handle
+ INPUT PROGRAM and FILE TYPE with a nested command-processing loop.
+
+ * procedure.c (case_source_is_complex): Removed.
+ (discard_variables) No need to set pgm_state anymore.
+
Tue Apr 25 11:06:49 2006 Ben Pfaff <blp@gnu.org>
Finish reforming error message support. In this phase, move