Fri Jun  9 13:59:15 2006  Ben Pfaff  <blp@gnu.org>

	Reform string library.
	
	* generate.pl (init_all_types): `struct fixed_string' is now
	`struct substring'.

Sun May  7 10:05:42 WST 2006 John Darrington <john@darrington.wattle.id.au>

	* evaluate.c: Removed call to copy_mangle, and replaced with the
	original buf_copy_rpad.

Mon May  1 15:11:48 2006  Ben Pfaff  <blp@gnu.org>

	Prohibit LAG following TEMPORARY.  This both matches SPSS behavior
	and fixes a bug: we saved the cases for LAG before TEMPORARY but
	allowed access to variables created afterward anyhow (which could
	cause a segfault).

	* generate.pl: Parse "perm_only" flag on operations.

	* operations.def: Add "perm_only" flag to LAG operations.

	* parse.c: Disallow OPF_PERM_ONLY operations after TEMPORARY.

	* parse.inc.pl: Output OPF_PERM_ONLY flag for "perm_only"
	operations.

	* private.h: Add OPF_PERM_ONLY flag.

Sun Apr 23 22:06:45 2006  Ben Pfaff  <blp@gnu.org>

	Continue reforming error message support.  In this phase, get rid
	of message "titles" and put the message text in `struct error'.
	Now `struct error' encapsulates a message more properly.
	
	* helpers.c: (expr_error) Use err_msg() instead of err_vmsg().
	Format message ourselves.

Thu Mar  2 08:40:33 WST 2006 John Darrington <john@darrington.wattle.id.au>
	
	* Moved files from src directory