Continue reforming procedure execution. In this phase, get rid of

[pspp-builds.git] / src / math / ChangeLog

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+Wed May  3 23:06:43 2006  Ben Pfaff  <blp@gnu.org>
+
+       Continue reforming procedure execution.  In this phase, get rid of
+       many global variables, consolidating procedure execution in
+       procedure.c.  Encapsulate transformations in new "struct
+       trns_chain".  Also, change implementation of N OF CASES, FILTER,
+       and PROCESS IF from special cases to transformations.
+        
+       * sort.c: (prepare_to_sort_active_file) Don't run a procedure
+       here.
+       (sort_active_file_in_place) Rewrite to run a procedure, capture
+       the output, sort the output, and set that as the source for the
+       next procedure.
+       (struct sort_to_casefile_cb_data) New structure.
+       (sort_to_casefile_callback) New function.
+       (sort_active_file_to_casefile) Rewrite to use
+       multipass_procedure().
+
 Sat Apr 29 11:09:33 WST 2006 John Darrington <john@darrington.wattle.id.au>
 
        * removed unused variable.