1 /* PSPP - computes sample statistics.
2 Copyright (C) 1997-9, 2000 Free Software Foundation, Inc.
3 Written by Ben Pfaff <blp@gnu.org>.
5 This program is free software; you can redistribute it and/or
6 modify it under the terms of the GNU General Public License as
7 published by the Free Software Foundation; either version 2 of the
8 License, or (at your option) any later version.
10 This program is distributed in the hope that it will be useful, but
11 WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
25 #include "dictionary.h"
35 /* Just to be different, points to a set of null terminated strings
36 containing the names of the vectors to be created. The list
37 itself is terminated by a empty string. So a list of three
38 elements, A B C, would look like this: "A\0B\0C\0\0". */
41 /* vecnames iterators. */
44 /* Maximum allocated position for vecnames, plus one position. */
47 cp = vecnames = xmalloc (256);
48 endp = &vecnames[256];
51 /* Get the name(s) of the new vector(s). */
58 char *old_vecnames = vecnames;
59 vecnames = xrealloc (vecnames, endp - vecnames + 256);
60 cp = (cp - old_vecnames) + vecnames;
61 endp = (endp - old_vecnames) + vecnames + 256;
64 for (cp2 = cp; cp2 < cp; cp2 += strlen (cp))
65 if (!strcmp (cp2, tokid))
67 msg (SE, _("Vector name %s is given twice."), tokid);
71 if (dict_lookup_vector (default_dict, tokid))
73 msg (SE, _("There is already a vector with name %s."), tokid);
77 cp = stpcpy (cp, tokid) + 1;
83 /* Now that we have the names it's time to check for the short
91 if (strchr (vecnames, '\0')[1])
93 /* There's more than one vector name. */
94 msg (SE, _("A slash must be used to separate each vector "
95 "specification when using the long form. Commands "
96 "such as VECTOR A,B=Q1 TO Q20 are not supported."));
100 if (!parse_variables (default_dict, &v, &nv,
101 PV_SAME_TYPE | PV_DUPLICATE))
104 dict_create_vector (default_dict, vecnames, v, nv);
107 else if (lex_match ('('))
111 /* Maximum number of digits in a number to add to the base
115 /* Name of an individual variable to be created. */
116 char name[SHORT_NAME_LEN + 1];
118 /* Vector variables. */
122 if (!lex_force_int ())
128 msg (SE, _("Vectors must have at least one element."));
131 if (!lex_force_match (')'))
134 /* First check that all the generated variable names are SHORT_NAME_LEN
135 characters or shorter. */
136 ndig = intlog10 (nv);
137 for (cp = vecnames; *cp;)
139 int len = strlen (cp);
140 if (len + ndig > SHORT_NAME_LEN)
142 msg (SE, _("%s%d is too long for a variable name."), cp, nv);
148 /* Next check that none of the variables exist. */
149 for (cp = vecnames; *cp;)
151 for (i = 0; i < nv; i++)
153 sprintf (name, "%s%d", cp, i + 1);
154 if (dict_lookup_var (default_dict, name))
156 msg (SE, _("There is already a variable named %s."), name);
160 cp += strlen (cp) + 1;
163 /* Finally create the variables and vectors. */
164 v = xmalloc (nv * sizeof *v);
165 for (cp = vecnames; *cp;)
167 for (i = 0; i < nv; i++)
169 sprintf (name, "%s%d", cp, i + 1);
170 v[i] = dict_create_var_assert (default_dict, name, 0);
172 if (!dict_create_vector (default_dict, cp, v, nv))
174 cp += strlen (cp) + 1;
180 msg (SE, _("The syntax for this command does not match "
181 "the expected syntax for either the long form "
182 "or the short form of VECTOR."));
189 while (lex_match ('/'));
193 lex_error (_("expecting end of command"));
200 return CMD_PART_SUCCESS_MAYBE;