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 #include <libpspp/debug-print.h>
39 /* Parses and executes APPLY DICTIONARY. */
41 cmd_apply_dictionary (void)
43 struct file_handle *handle;
44 struct any_reader *reader;
45 struct dictionary *dict;
51 lex_match_id ("FROM");
53 handle = fh_parse (FH_REF_FILE | FH_REF_SCRATCH);
57 reader = any_reader_open (handle, &dict);
60 any_reader_close (reader);
62 for (i = 0; i < dict_get_var_cnt (dict); i++)
64 struct variable *s = dict_get_var (dict, i);
65 struct variable *t = dict_lookup_var (default_dict, s->name);
70 if (s->type != t->type)
72 msg (SW, _("Variable %s is %s in target file, but %s in "
75 t->type == ALPHA ? _("string") : _("numeric"),
76 s->type == ALPHA ? _("string") : _("numeric"));
80 if (s->label && strcspn (s->label, " ") != strlen (s->label))
87 if (val_labs_count (s->val_labs) && t->width > MAX_SHORT_STRING)
88 msg (SW, _("Cannot add value labels from source file to "
89 "long string variable %s."),
91 else if (val_labs_count (s->val_labs))
93 /* Whether to apply the value labels. */
96 if (t->width < s->width)
98 struct val_labs_iterator *i;
101 for (lab = val_labs_first (s->val_labs, &i); lab != NULL;
102 lab = val_labs_next (s->val_labs, &i))
106 /* We will apply the value labels only if all
107 the truncated characters are blanks. */
108 for (j = t->width; j < s->width; j++)
109 if (lab->value.s[j] != ' ')
119 /* Fortunately, we follow the convention that all value
120 label values are right-padded with spaces, so it is
121 unnecessary to bother padding values here. */
126 val_labs_destroy (t->val_labs);
127 t->val_labs = s->val_labs;
128 val_labs_set_width (t->val_labs, t->width);
129 s->val_labs = val_labs_create (s->width);
133 if (!mv_is_empty (&s->miss) && t->width > MAX_SHORT_STRING)
134 msg (SW, _("Cannot apply missing values from source file to "
135 "long string variable %s."),
137 else if (!mv_is_empty (&s->miss))
139 if (mv_is_resizable (&s->miss, t->width))
141 mv_copy (&t->miss, &s->miss);
142 mv_resize (&t->miss, t->width);
146 if (s->type == NUMERIC)
154 msg (SW, _("No matching variables found between the source "
155 "and target files."));
158 if (dict_get_weight (dict) != NULL)
160 struct variable *new_weight
161 = dict_lookup_var (default_dict, dict_get_weight (dict)->name);
163 if (new_weight != NULL)
164 dict_set_weight (default_dict, new_weight);
167 any_reader_close (reader);
169 return lex_end_of_command ();