1 Wed Dec 13 19:33:52 2006 Ben Pfaff <blp@gnu.org>
3 Wed Dec 13 19:30:26 2006 Ben Pfaff <blp@gnu.org>
5 Implement support for DATESUM, DATEDIFF expression functions. See
8 * helpers.c (enum date_unit): New enum.
9 [!HAVE_TRUNC] (trunc): New function.
10 (recognize_unit): New function.
11 (year_diff): New function.
12 (month_diff): New function.
13 (quarter_diff): New function.
14 (date_unit_duration): New function.
15 (expr_date_difference): New function.
16 (enum date_sum_method): New function.
17 (recognize_method): New function.
18 (add_months): New function.
19 (expr_date_sum): New function.
21 * operations.def: Implement DATESUM, DATEDIFF functions. Mark
24 Sun Dec 10 16:49:33 2006 Ben Pfaff <blp@gnu.org>
26 * operations.def: Implement VALUELABEL function. Add DATEDIFF,
27 DATESUM unimplemented stubs.
29 * parse.c (type_coercion_core): Add support for OP_var type, which
30 is a name for a numeric or string variable.
31 (is_compatible) New function.
32 (check_operator) Only require values to be compatible with their
33 expected types, not identical.
34 (is_valid_node) Ditto.
35 (compare_names) Always return mismatch if the command name can't
37 (lookup_function_helper) Pass the new OPF_NO_ABBREV flag to the
40 * generate.pl (init_all_types): Add support for a type just called
41 "var" that may be a numeric or string variable name. Also, add a
42 no_abbrev option that prevents a function name from being
43 abbreviated (in case of naming conflict otherwise).
45 * parse.inc.pl: Output OPF_NO_ABBREV flag.
47 * private.h: Add OPF_NO_ABBREV flag.
49 Wed Jul 12 21:03:17 2006 Ben Pfaff <blp@gnu.org>
51 * evaluate.c (cmd_debug_evaluate): Don't try to resize a null
54 Fri Jun 9 13:59:15 2006 Ben Pfaff <blp@gnu.org>
56 Reform string library.
58 * generate.pl (init_all_types): `struct fixed_string' is now
61 Sun May 7 10:05:42 WST 2006 John Darrington <john@darrington.wattle.id.au>
63 * evaluate.c: Removed call to copy_mangle, and replaced with the
64 original buf_copy_rpad.
66 Mon May 1 15:11:48 2006 Ben Pfaff <blp@gnu.org>
68 Prohibit LAG following TEMPORARY. This both matches SPSS behavior
69 and fixes a bug: we saved the cases for LAG before TEMPORARY but
70 allowed access to variables created afterward anyhow (which could
73 * generate.pl: Parse "perm_only" flag on operations.
75 * operations.def: Add "perm_only" flag to LAG operations.
77 * parse.c: Disallow OPF_PERM_ONLY operations after TEMPORARY.
79 * parse.inc.pl: Output OPF_PERM_ONLY flag for "perm_only"
82 * private.h: Add OPF_PERM_ONLY flag.
84 Sun Apr 23 22:06:45 2006 Ben Pfaff <blp@gnu.org>
86 Continue reforming error message support. In this phase, get rid
87 of message "titles" and put the message text in `struct error'.
88 Now `struct error' encapsulates a message more properly.
90 * helpers.c: (expr_error) Use err_msg() instead of err_vmsg().
91 Format message ourselves.
93 Thu Mar 2 08:40:33 WST 2006 John Darrington <john@darrington.wattle.id.au>
95 * Moved files from src directory