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 <language/command.h>
27 #include <language/lexer/lexer.h>
28 #include <language/lexer/variable-parser.h>
29 #include <language/lexer/range-parser.h>
30 #include <libpspp/message.h>
31 #include <libpspp/message.h>
32 #include <libpspp/str.h>
35 #define _(msgid) gettext (msgid)
38 cmd_missing_values (struct lexer *lexer, struct dataset *ds)
43 int retval = CMD_FAILURE;
44 bool deferred_errors = false;
46 while (lex_token (lexer) != '.')
50 if (!parse_variables (lexer, dataset_dict (ds), &v, &nv, PV_NONE))
53 if (!lex_match (lexer, '('))
55 lex_error (lexer, _("expecting `('"));
59 for (i = 0; i < nv; i++)
60 var_clear_missing_values (v[i]);
62 if (!lex_match (lexer, ')'))
64 struct missing_values mv;
66 for (i = 0; i < nv; i++)
67 if (var_get_type (v[i]) != var_get_type (v[0]))
69 const struct variable *n = var_is_numeric (v[0]) ? v[0] : v[i];
70 const struct variable *s = var_is_numeric (v[0]) ? v[i] : v[0];
71 msg (SE, _("Cannot mix numeric variables (e.g. %s) and "
72 "string variables (e.g. %s) within a single list."),
73 var_get_name (n), var_get_name (s));
77 if (var_is_numeric (v[0]))
80 while (!lex_match (lexer, ')'))
82 enum fmt_type type = var_get_print_format (v[0])->type;
86 if (!parse_num_range (lexer, &x, &y, &type))
91 : mv_add_num_range (&mv, x, y));
93 deferred_errors = true;
95 lex_match (lexer, ',');
102 mv_init (&mv, MAX_SHORT_STRING);
103 while (!lex_match (lexer, ')'))
105 if (!lex_force_string (lexer))
107 deferred_errors = true;
111 ds_init_string (&value, lex_tokstr (lexer));
113 if (ds_length (&value) > MAX_SHORT_STRING)
115 ds_truncate (&value, MAX_SHORT_STRING);
116 msg (SE, _("Truncating missing value to short string "
117 "length (%d characters)."),
121 ds_rpad (&value, MAX_SHORT_STRING, ' ');
123 if (!mv_add_str (&mv, ds_data (&value)))
124 deferred_errors = true;
128 lex_match (lexer, ',');
132 for (i = 0; i < nv; i++)
134 if (mv_is_resizable (&mv, var_get_width (v[i])))
135 var_set_missing_values (v[i], &mv);
138 msg (SE, _("Missing values provided are too long to assign "
139 "to variable of width %d."),
140 var_get_width (v[i]));
141 deferred_errors = true;
146 lex_match (lexer, '/');
150 retval = lex_end_of_command (lexer);
155 retval = CMD_FAILURE;