bug in cursor up navigation fixed
[claws.git] / src / utils.h
1 /*
2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
3  * Copyright (C) 1999,2000 Hiroyuki Yamamoto
4  *
5  * This program is free software; you can redistribute it and/or modify
6  * it under the terms of the GNU General Public License as published by
7  * the Free Software Foundation; either version 2 of the License, or
8  * (at your option) any later version.
9  *
10  * This program is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13  * GNU General Public License for more details.
14  *
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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
18  */
19
20 #ifndef __UTILS_H__
21 #define __UTILS_H__
22
23 #ifdef HAVE_CONFIG_H
24 #  include "config.h"
25 #endif
26
27 #include <glib.h>
28 #include <stdio.h>
29 #include <string.h>
30 #include <stdlib.h>
31 #include <unistd.h>
32 #include <sys/types.h>
33 #include <time.h>
34 #if HAVE_ALLOCA_H
35 #  include <alloca.h>
36 #endif
37 #if HAVE_WCHAR_H
38 #  include <wchar.h>
39 #endif
40
41 /* The AC_CHECK_SIZEOF() in configure fails for some machines.
42  * we provide some fallback values here */
43 #if !SIZEOF_UNSIGNED_SHORT
44   #undef SIZEOF_UNSIGNED_SHORT
45   #define SIZEOF_UNSIGNED_SHORT 2
46 #endif
47 #if !SIZEOF_UNSIGNED_INT
48   #undef SIZEOF_UNSIGNED_INT
49   #define SIZEOF_UNSIGNED_INT 4
50 #endif
51 #if !SIZEOF_UNSIGNED_LONG
52   #undef SIZEOF_UNSIGNED_LONG
53   #define SIZEOF_UNSIGNED_LONG 4
54 #endif
55
56 #ifndef HAVE_U32_TYPEDEF
57   #undef u32        /* maybe there is a macro with this name */
58   typedef guint32 u32;
59   #define HAVE_U32_TYPEDEF
60 #endif
61
62 #ifndef BIG_ENDIAN_HOST
63   #if (G_BYTE_ORDER == G_BIG_ENDIAN)
64     #define BIG_ENDIAN_HOST 1
65   #endif
66 #endif
67
68 #define CHDIR_RETURN_IF_FAIL(dir) \
69 { \
70         if (change_dir(dir) < 0) return; \
71 }
72
73 #define CHDIR_RETURN_VAL_IF_FAIL(dir, val) \
74 { \
75         if (change_dir(dir) < 0) return val; \
76 }
77
78 #define Xalloca(ptr, size, iffail) \
79 { \
80         if ((ptr = alloca(size)) == NULL) { \
81                 g_warning("can't allocate memory\n"); \
82                 iffail; \
83         } \
84 }
85
86 #define Xstrdup_a(ptr, str, iffail) \
87 { \
88         gchar *__tmp; \
89  \
90         if ((__tmp = alloca(strlen(str) + 1)) == NULL) { \
91                 g_warning("can't allocate memory\n"); \
92                 iffail; \
93         } else \
94                 strcpy(__tmp, str); \
95  \
96         ptr = __tmp; \
97 }
98
99 #define Xstrndup_a(ptr, str, len, iffail) \
100 { \
101         gchar *__tmp; \
102  \
103         if ((__tmp = alloca(len + 1)) == NULL) { \
104                 g_warning("can't allocate memory\n"); \
105                 iffail; \
106         } else { \
107                 strncpy(__tmp, str, len); \
108                 __tmp[len] = '\0'; \
109         } \
110  \
111         ptr = __tmp; \
112 }
113
114 #define FILE_OP_ERROR(file, func) \
115 { \
116         fprintf(stderr, "%s: ", file); \
117         perror(func); \
118 }
119
120 /* for macro expansion */
121 #define Str(x)  #x
122 #define Xstr(x) Str(x)
123
124 void list_free_strings          (GList          *list);
125 void slist_free_strings         (GSList         *list);
126
127 void hash_free_strings          (GHashTable     *table);
128
129 void ptr_array_free_strings     (GPtrArray      *array);
130
131 /* number-string conversion */
132 gint to_number                  (const gchar *nstr);
133 gchar *itos                     (gint         n);
134 gchar *to_human_readable        (off_t        size);
135
136 /* alternative string functions */
137 gint strcmp2            (const gchar    *s1,
138                          const gchar    *s2);
139 gint path_cmp           (const gchar    *s1,
140                          const gchar    *s2);
141 gchar *strretchomp      (gchar          *str);
142 gchar *strcasestr       (const gchar    *haystack,
143                          const gchar    *needle);
144 gchar *strncpy2         (gchar          *dest,
145                          const gchar    *src,
146                          size_t          n);
147
148 /* wide-character functions */
149 #if !HAVE_ISWALNUM
150 int iswalnum            (wint_t wc);
151 #endif
152 #if !HAVE_ISWSPACE
153 int iswspace            (wint_t wc);
154 #endif
155 #if !HAVE_TOWLOWER
156 wint_t towlower         (wint_t wc);
157 #endif
158
159 #if !HAVE_WCSLEN
160 size_t wcslen           (const wchar_t *s);
161 #endif
162 #if !HAVE_WCSCPY
163 wchar_t *wcscpy         (wchar_t       *dest,
164                          const wchar_t *src);
165 #endif
166 #if !HAVE_WCSNCPY
167 wchar_t *wcsncpy        (wchar_t       *dest,
168                          const wchar_t *src,
169                          size_t         n);
170 #endif
171
172 wchar_t *wcsdup                 (const wchar_t *s);
173 wchar_t *wcsndup                (const wchar_t *s,
174                                  size_t         n);
175 wchar_t *strdup_mbstowcs        (const gchar   *s);
176 gchar *strdup_wcstombs          (const wchar_t *s);
177 gint wcsncasecmp                (const wchar_t *s1,
178                                  const wchar_t *s2,
179                                  size_t         n);
180 wchar_t *wcscasestr             (const wchar_t *haystack,
181                                  const wchar_t *needle);
182
183 gboolean is_next_nonascii       (const wchar_t *s);
184 gboolean is_next_mbs            (const wchar_t *s);
185 wchar_t *find_wspace            (const wchar_t *s);
186
187 /* functions for string parsing */
188 gint subject_compare                    (const gchar    *s1,
189                                          const gchar    *s2);
190 void trim_subject                       (gchar          *str);
191 void eliminate_parenthesis              (gchar          *str,
192                                          gchar           op,
193                                          gchar           cl);
194 void extract_parenthesis                (gchar          *str,
195                                          gchar           op,
196                                          gchar           cl);
197 void extract_parenthesis_with_skip_quote(gchar          *str,
198                                          gchar           quote_chr,
199                                          gchar           op,
200                                          gchar           cl);
201 void eliminate_quote                    (gchar          *str,
202                                          gchar           quote_chr);
203 void extract_quote                      (gchar          *str,
204                                          gchar           quote_chr);
205 void eliminate_address_comment          (gchar          *str);
206 gchar *strchr_with_skip_quote           (const gchar    *str,
207                                          gint            quote_chr,
208                                          gint            c);
209 gchar *strrchr_with_skip_quote          (const gchar    *str,
210                                          gint            quote_chr,
211                                          gint            c);
212 void extract_address                    (gchar          *str);
213 GSList *address_list_append             (GSList         *addr_list,
214                                          const gchar    *str);
215 GSList *references_list_append          (GSList         *msgid_list,
216                                          const gchar    *str);
217 GSList *newsgroup_list_append           (GSList         *group_list,
218                                          const gchar    *str);
219 void remove_return                      (gchar          *str);
220 void remove_space                       (gchar          *str);
221 void subst_char                         (gchar          *str,
222                                          gchar           orig,
223                                          gchar           subst);
224 gboolean is_header_line                 (const gchar    *str);
225 gboolean is_ascii_str                   (const guchar   *str);
226 gint get_quote_level                    (const gchar    *str);
227 GList *uri_list_extract_filenames       (const gchar    *uri_list);
228 gchar *strstr_with_skip_quote           (const gchar    *haystack,
229                                          const gchar    *needle);
230 gchar **strsplit_with_quote             (const gchar    *str,
231                                          const gchar    *delim,
232                                          gint            max_tokens);
233
234 /* return static strings */
235 gchar *get_home_dir             (void);
236 gchar *get_rc_dir               (void);
237 gchar *get_news_cache_dir       (void);
238 gchar *get_imap_cache_dir       (void);
239 gchar *get_mime_tmp_dir         (void);
240 gchar *get_tmp_file             (void);
241 gchar *get_domain_name          (void);
242
243 /* file / directory handling */
244 off_t get_file_size             (const gchar    *file);
245 gboolean file_exist             (const gchar    *file,
246                                  gboolean        allow_fifo);
247 gboolean is_dir_exist           (const gchar    *dir);
248 gint change_dir                 (const gchar    *dir);
249 gint make_dir_hier              (const gchar    *dir);
250 gint remove_all_files           (const gchar    *dir);
251 gint remove_dir_recursive       (const gchar    *dir);
252 gint copy_file                  (const gchar    *src,
253                                  const gchar    *dest);
254 gint change_file_mode_rw        (FILE           *fp,
255                                  const gchar    *file);
256 FILE *my_tmpfile                (void);
257
258 #define is_file_exist(file)             file_exist(file, FALSE)
259 #define is_file_or_fifo_exist(file)     file_exist(file, TRUE)
260
261 /* process execution */
262 gint execute_async              (gchar *const    argv[]);
263 gint execute_command_line       (const gchar    *cmdline);
264
265 /* open URI with external browser */
266 gint open_uri(const gchar *uri, const gchar *cmdline);
267
268 /* time functions */
269 time_t remote_tzoffset_sec      (const gchar    *zone);
270 time_t tzoffset_sec             (time_t         *now);
271 gchar *tzoffset                 (time_t         *now);
272 void get_rfc822_date            (gchar          *buf,
273                                  gint            len);
274
275 /* logging */
276 void debug_print(const gchar *format, ...) G_GNUC_PRINTF(1, 2);
277 void log_print  (const gchar *format, ...) G_GNUC_PRINTF(1, 2);
278 void log_message(const gchar *format, ...) G_GNUC_PRINTF(1, 2);
279 void log_warning(const gchar *format, ...) G_GNUC_PRINTF(1, 2);
280 void log_error  (const gchar *format, ...) G_GNUC_PRINTF(1, 2);
281
282 #endif /* __UTILS_H__ */