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@@ -1,3 +1,56 @@
+2007-06-06  Ben Pfaff  <blp@gnu.org>
+
+	Until now, the procedure code has provided a case to the
+	case_source, which has filled in the data values that come from
+	the active file.  "Left" data values that don't come from the
+	active file naturally stay the same from case to case, because the
+	procedure code keeps using that same case.
+
+	One of the compromises that comes with the new procedure code is
+	that the active file allocates and provides its own case, which
+	the procedure code then has to resize to provide room for any
+	other variables that should go in the case and then fill in the
+	values of "left" variables.  Then, when we're done with that case,
+	we have to save the values of "left" variables to copy into the
+	next case read from the active file.
+
+	The caseinit code helps with this.
+
+	* automake.mk: Add new files.
+
+	* caseinit.c: New file. 
+
+	* caseinit.h: New file. 
+
+2007-06-06  Ben Pfaff  <blp@gnu.org>
+
+	* value.h (value_cnt_from_width): New function.
+
+	* variable.c (var_get_value_cnt): Use new function.
+
+2007-06-06  Ben Pfaff  <blp@gnu.org>
+
+	Add casegrouper, to allow cases read from a given casereader to be
+	broken into groups, each of which has its own casereader.
+	Generally cases are grouped based on having equal values for some
+	set of variables.
+
+	* automake.mk: Add new files.
+
+	* casegrouper.c: New file.
+
+	* casegrouper.h: New file.
+
+2007-06-06  Ben Pfaff  <blp@gnu.org>
+
+	Add interface to lexicographical ordering of cases.
+
+	* automake.mk: Add new files.
+
+	* case-ordering.c: New file.
+
+	* case-ordering.h: New file.
+
 2007-06-06  Ben Pfaff  <blp@gnu.org>
 
 	Add casereaders and casewriters, the basis of the new data processing