+Time-stamp: <2006-05-03 22:28:57 blp>
+
+Procedure processing:
+
+* Should not need temporary casefile in the common case.
+
+* All of the procedure_*() variants can (and should) be implemented in terms of
+ a variant that provides "proc_func" plus an "end_func" called after all
+ processing is complete.
+
+* The "split" variants should not dump the splits to the output file
+ automatically. There is no need for the procedure code to talk to the output
+ manager.
+
+* LAG need not be as much of a special case.