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
25 /* Search path for configuration files. */
26 extern const char *config_path;
30 char *fn_interp_vars (const char *input, const char *(*getenv) (const char *));
31 char *fn_tilde_expand (const char *fn);
32 char *fn_search_path (const char *basename, const char *path,
34 char *fn_prepend_dir (const char *filename, const char *directory);
35 char *fn_normalize (const char *fn);
36 char *fn_dirname (const char *fn);
37 char *fn_basename (const char *fn);
39 char *fn_get_cwd (void);
41 int fn_absolute_p (const char *fn);
42 int fn_special_p (const char *fn);
43 int fn_exists_p (const char *fn);
44 char *fn_readlink (const char *fn);
46 const char *fn_getenv (const char *variable);
47 const char *fn_getenv_default (const char *variable, const char *def);
49 FILE *fn_open (const char *fn, const char *mode);
50 int fn_close (const char *fn, FILE *file);
52 struct file_identity *fn_get_identity (const char *filename);
53 void fn_free_identity (struct file_identity *);
54 int fn_compare_file_identities (const struct file_identity *,
55 const struct file_identity *);
57 /* Extended file routines. */
60 typedef int (*file_callback) (struct file_ext *);
62 /* File callbacks may not return zero to indicate failure unless they
63 set errno to a sensible value. */
66 char *filename; /* Filename. */
67 const char *mode; /* Open mode, i.e, "wb". */
68 FILE *file; /* File. */
69 int *sequence_no; /* Page number, etc. */
70 void *param; /* User data. */
71 file_callback postopen; /* Called after FILE opened. */
72 file_callback preclose; /* Called before FILE closed. */
75 int fn_open_ext (struct file_ext *file);
76 int fn_close_ext (struct file_ext *file);
78 #endif /* filename_h */