1 /* PSPP - a program for statistical analysis.
2 Copyright (C) 1997-9, 2000, 2006 Free Software Foundation, Inc.
4 This program is free software: you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation, either version 3 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see <http://www.gnu.org/licenses/>. */
21 #include <data/data-in.h>
22 #include <data/missing-values.h>
23 #include <data/procedure.h>
24 #include <data/value.h>
25 #include <data/variable.h>
26 #include <data/format.h>
27 #include <language/command.h>
28 #include <language/lexer/lexer.h>
29 #include <language/lexer/variable-parser.h>
30 #include <language/lexer/range-parser.h>
31 #include <libpspp/message.h>
32 #include <libpspp/message.h>
33 #include <libpspp/str.h>
36 #define _(msgid) gettext (msgid)
39 cmd_missing_values (struct lexer *lexer, struct dataset *ds)
44 int retval = CMD_FAILURE;
45 bool deferred_errors = false;
47 while (lex_token (lexer) != '.')
51 if (!parse_variables (lexer, dataset_dict (ds), &v, &nv, PV_NONE))
54 if (!lex_match (lexer, '('))
56 lex_error (lexer, _("expecting `('"));
60 for (i = 0; i < nv; i++)
61 var_clear_missing_values (v[i]);
63 if (!lex_match (lexer, ')'))
65 struct missing_values mv;
67 for (i = 0; i < nv; i++)
68 if (var_get_type (v[i]) != var_get_type (v[0]))
70 const struct variable *n = var_is_numeric (v[0]) ? v[0] : v[i];
71 const struct variable *s = var_is_numeric (v[0]) ? v[i] : v[0];
72 msg (SE, _("Cannot mix numeric variables (e.g. %s) and "
73 "string variables (e.g. %s) within a single list."),
74 var_get_name (n), var_get_name (s));
78 if (var_is_numeric (v[0]))
81 while (!lex_match (lexer, ')'))
83 enum fmt_type type = var_get_print_format (v[0])->type;
87 if (!parse_num_range (lexer, &x, &y, &type))
92 : mv_add_range (&mv, x, y));
94 deferred_errors = true;
96 lex_match (lexer, ',');
103 mv_init (&mv, MAX_SHORT_STRING);
104 while (!lex_match (lexer, ')'))
106 if (!lex_force_string (lexer))
108 deferred_errors = true;
112 ds_init_string (&value, lex_tokstr (lexer));
114 if (ds_length (&value) > MAX_SHORT_STRING)
116 ds_truncate (&value, MAX_SHORT_STRING);
117 msg (SE, _("Truncating missing value to short string "
118 "length (%d characters)."),
122 ds_rpad (&value, MAX_SHORT_STRING, ' ');
124 if (!mv_add_str (&mv, ds_data (&value)))
125 deferred_errors = true;
129 lex_match (lexer, ',');
133 for (i = 0; i < nv; i++)
135 if (mv_is_resizable (&mv, var_get_width (v[i])))
136 var_set_missing_values (v[i], &mv);
139 msg (SE, _("Missing values provided are too long to assign "
140 "to variable of width %d."),
141 var_get_width (v[i]));
142 deferred_errors = true;
147 lex_match (lexer, '/');
151 retval = lex_end_of_command (lexer);
156 retval = CMD_FAILURE;