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
22 #include <data/any-reader.h>
23 #include <language/command.h>
24 #include <data/dictionary.h>
25 #include <libpspp/message.h>
26 #include <language/data-io/file-handle.h>
27 #include <data/file-handle-def.h>
28 #include <libpspp/hash.h>
29 #include <language/lexer/lexer.h>
30 #include <libpspp/str.h>
31 #include <data/value-labels.h>
32 #include <data/variable.h>
35 #define _(msgid) gettext (msgid)
37 /* Parses and executes APPLY DICTIONARY. */
39 cmd_apply_dictionary (void)
41 struct file_handle *handle;
42 struct any_reader *reader;
43 struct dictionary *dict;
49 lex_match_id ("FROM");
51 handle = fh_parse (FH_REF_FILE | FH_REF_SCRATCH);
55 reader = any_reader_open (handle, &dict);
58 any_reader_close (reader);
60 for (i = 0; i < dict_get_var_cnt (dict); i++)
62 struct variable *s = dict_get_var (dict, i);
63 struct variable *t = dict_lookup_var (default_dict, s->name);
68 if (s->type != t->type)
70 msg (SW, _("Variable %s is %s in target file, but %s in "
73 t->type == ALPHA ? _("string") : _("numeric"),
74 s->type == ALPHA ? _("string") : _("numeric"));
78 if (s->label && strcspn (s->label, " ") != strlen (s->label))
85 if (val_labs_count (s->val_labs) && t->width > MAX_SHORT_STRING)
86 msg (SW, _("Cannot add value labels from source file to "
87 "long string variable %s."),
89 else if (val_labs_count (s->val_labs))
91 /* Whether to apply the value labels. */
94 if (t->width < s->width)
96 struct val_labs_iterator *i;
99 for (lab = val_labs_first (s->val_labs, &i); lab != NULL;
100 lab = val_labs_next (s->val_labs, &i))
104 /* We will apply the value labels only if all
105 the truncated characters are blanks. */
106 for (j = t->width; j < s->width; j++)
107 if (lab->value.s[j] != ' ')
117 /* Fortunately, we follow the convention that all value
118 label values are right-padded with spaces, so it is
119 unnecessary to bother padding values here. */
124 val_labs_destroy (t->val_labs);
125 t->val_labs = s->val_labs;
126 val_labs_set_width (t->val_labs, t->width);
127 s->val_labs = val_labs_create (s->width);
131 if (!mv_is_empty (&s->miss) && t->width > MAX_SHORT_STRING)
132 msg (SW, _("Cannot apply missing values from source file to "
133 "long string variable %s."),
135 else if (!mv_is_empty (&s->miss))
137 if (mv_is_resizable (&s->miss, t->width))
139 mv_copy (&t->miss, &s->miss);
140 mv_resize (&t->miss, t->width);
144 if (s->type == NUMERIC)
152 msg (SW, _("No matching variables found between the source "
153 "and target files."));
156 if (dict_get_weight (dict) != NULL)
158 struct variable *new_weight
159 = dict_lookup_var (default_dict, dict_get_weight (dict)->name);
161 if (new_weight != NULL)
162 dict_set_weight (default_dict, new_weight);
165 any_reader_close (reader);
167 return lex_end_of_command ();