1 /* PSPP - a program for statistical analysis.
2 Copyright (C) 1997-9, 2000, 2006, 2009, 2010 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/value-parser.h>
30 #include <language/lexer/variable-parser.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)
40 struct variable **v = NULL;
43 int retval = CMD_FAILURE;
44 bool deferred_errors = false;
46 while (lex_token (lexer) != T_ENDCMD)
50 if (!parse_variables (lexer, dataset_dict (ds), &v, &nv, PV_NONE))
53 if (!lex_force_match (lexer, T_LPAREN))
56 for (i = 0; i < nv; i++)
57 var_clear_missing_values (v[i]);
59 if (!lex_match (lexer, T_RPAREN))
61 struct missing_values mv;
63 for (i = 0; i < nv; i++)
64 if (var_get_type (v[i]) != var_get_type (v[0]))
66 const struct variable *n = var_is_numeric (v[0]) ? v[0] : v[i];
67 const struct variable *s = var_is_numeric (v[0]) ? v[i] : v[0];
68 msg (SE, _("Cannot mix numeric variables (e.g. %s) and "
69 "string variables (e.g. %s) within a single list."),
70 var_get_name (n), var_get_name (s));
74 if (var_is_numeric (v[0]))
77 while (!lex_match (lexer, T_RPAREN))
79 enum fmt_type type = var_get_print_format (v[0])->type;
83 if (!parse_num_range (lexer, &x, &y, &type))
88 : mv_add_range (&mv, x, y));
90 deferred_errors = true;
92 lex_match (lexer, T_COMMA);
97 mv_init (&mv, MV_MAX_STRING);
98 while (!lex_match (lexer, T_RPAREN))
100 uint8_t value[MV_MAX_STRING];
103 if (!lex_force_string (lexer))
105 deferred_errors = true;
109 length = ds_length (lex_tokstr (lexer));
110 if (length > MV_MAX_STRING)
112 msg (SE, _("Truncating missing value to maximum "
113 "acceptable length (%d bytes)."),
115 length = MV_MAX_STRING;
117 memset (value, ' ', MV_MAX_STRING);
118 memcpy (value, ds_data (lex_tokstr (lexer)), length);
120 if (!mv_add_str (&mv, value))
121 deferred_errors = true;
124 lex_match (lexer, T_COMMA);
128 for (i = 0; i < nv; i++)
130 if (mv_is_resizable (&mv, var_get_width (v[i])))
131 var_set_missing_values (v[i], &mv);
134 msg (SE, _("Missing values provided are too long to assign "
135 "to variable of width %d."),
136 var_get_width (v[i]));
137 deferred_errors = true;
144 lex_match (lexer, T_SLASH);
148 retval = lex_end_of_command (lexer);
153 retval = CMD_FAILURE;