src/utils.h

   1 /*
   2  *      utils.h - this file is part of Geany, a fast and lightweight IDE
   3  *
   4  *      Copyright 2005-2012 Enrico Tröger <enrico(dot)troeger(at)uvena(dot)de>
   5  *      Copyright 2006-2012 Nick Treleaven <nick(dot)treleaven(at)btinternet(dot)com>
   6  *
   7  *      This program is free software; you can redistribute it and/or modify
   8  *      it under the terms of the GNU General Public License as published by
   9  *      the Free Software Foundation; either version 2 of the License, or
  10  *      (at your option) any later version.
  11  *
  12  *      This program is distributed in the hope that it will be useful,
  13  *      but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *      GNU General Public License for more details.
  16  *
  17  *      You should have received a copy of the GNU General Public License
  18  *      along with this program; if not, write to the Free Software
  19  *      Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  20  */
  21
  22 /**
  23  *  @file: utils.h
  24  *  General utility functions, non-GTK related.
  25  */
  26
  27 #ifndef GEANY_UTILS_H
  28 #define GEANY_UTILS_H 1
  29
  30 G_BEGIN_DECLS
  31
  32 #include <time.h>
  33
  34
  35 /** Returns TRUE if @a ptr points to a non-zero value. */
  36 #define NZV(ptr) \
  37         ((ptr) && (ptr)[0])
  38
  39 /** Assigns @a result to @a ptr, then frees the old value.
  40  * @a result can be an expression using the 'old' value of @a ptr.
  41  * E.g. @code SETPTR(str, g_strndup(str, 5)); @endcode
  42  **/
  43 #define SETPTR(ptr, result) \
  44         do setptr(ptr, result) while (0)
  45
  46 /** @deprecated 2011/11/15 - use SETPTR() instead. */
  47 #define setptr(ptr, result) \
  48         {\
  49                 gpointer setptr_tmp = ptr;\
  50                 ptr = result;\
  51                 g_free(setptr_tmp);\
  52         }
  53
  54 /** Duplicates a string on the stack using @c g_alloca().
  55  * Like glibc's @c strdupa(), but portable.
  56  * @note You must include @c string.h yourself.
  57  * @warning Don't use excessively or for long strings otherwise there may be stack exhaustion -
  58  *          see the GLib docs for @c g_alloca(). */
  59 #define utils_strdupa(str) \
  60         strcpy(g_alloca(strlen(str) + 1), str)
  61
  62 /* Get a keyfile setting, using the home keyfile if the key exists,
  63  * otherwise system keyfile. */
  64 #define utils_get_setting(type, home, sys, group, key, default_val)\
  65         (g_key_file_has_key(home, group, key, NULL)) ?\
  66                 utils_get_setting_##type(home, group, key, default_val) :\
  67                 utils_get_setting_##type(sys, group, key, default_val)
  68
  69 /* ignore the case of filenames and paths under WIN32, causes errors if not */
  70 #ifdef G_OS_WIN32
  71 #define utils_filenamecmp(a, b) utils_str_casecmp((a), (b))
  72 #else
  73 #define utils_filenamecmp(a, b) strcmp((a), (b))
  74 #endif
  75
  76
  77 /** Iterates all the items in @a array using pointers.
  78  * @param item pointer to an item in @a array.
  79  * @param array C array to traverse.
  80  * @param len Length of the array. */
  81 #define foreach_c_array(item, array, len) \
  82         for (item = array; item < &array[len]; item++)
  83
  84 /** Iterates all items in @a array.
  85  * @param type Type of @a item.
  86  * @param item pointer to item in @a array.
  87  * @param array @c GArray to traverse. */
  88 #define foreach_array(type, item, array) \
  89         foreach_c_array(item, ((type*)(gpointer)array->data), array->len)
  90
  91 /** Iterates all the pointers in @a ptr_array.
  92  * @param item pointer in @a ptr_array.
  93  * @param idx @c guint index into @a ptr_array.
  94  * @param ptr_array @c GPtrArray to traverse. */
  95 #define foreach_ptr_array(item, idx, ptr_array) \
  96         for (idx = 0, item = ((ptr_array)->len > 0 ? g_ptr_array_index((ptr_array), 0) : NULL); \
  97                 idx < (ptr_array)->len; ++idx, item = g_ptr_array_index((ptr_array), idx))
  98
  99 /** Iterates all the nodes in @a list.
 100  * @param node should be a (@c GList*).
 101  * @param list @c GList to traverse. */
 102 #define foreach_list(node, list) \
 103         for (node = list; node != NULL; node = node->next)
 104
 105 /** Iterates all the nodes in @a list.
 106  * @param node should be a (@c GSList*).
 107  * @param list @c GSList to traverse. */
 108 #define foreach_slist(node, list) \
 109         foreach_list(node, list)
 110
 111 /** Iterates through each unsorted filename in a @c GDir.
 112  * @param filename (@c const @c gchar*) locale-encoded filename, without path. Do not modify or free.
 113  * @param dir @c GDir created with @c g_dir_open(). Call @c g_dir_close() afterwards.
 114  * @see utils_get_file_list() if you want a sorted list.
 115  * @since Geany 0.19. */
 116 #define foreach_dir(filename, dir)\
 117         for ((filename) = g_dir_read_name(dir); (filename) != NULL; (filename) = g_dir_read_name(dir))
 118
 119 /** Iterates through each character in @a string.
 120  * @param char_ptr Pointer to character.
 121  * @param string String to traverse.
 122  * @warning Doesn't include null terminating character.
 123  * @since Geany 0.19. */
 124 #define foreach_str(char_ptr, string) \
 125         for (char_ptr = string; *char_ptr; char_ptr++)
 126
 127 /** Iterates a null-terminated string vector.
 128  * @param str_ptr @c gchar** pointer to string element.
 129  * @param strv Can be @c NULL.
 130  * @since Geany 0.20 */
 131 #define foreach_strv(str_ptr, strv)\
 132         if (!(strv)) {} else foreach_str(str_ptr, strv)
 133
 134 /** Iterates from 0 to @a size.
 135  * @param i Integer.
 136  * @param size Number of iterations.
 137  * @since Geany 0.20. */
 138 #define foreach_range(i, size) \
 139         for (i = 0; i < size; i++)
 140
 141
 142 void utils_open_browser(const gchar *uri);
 143
 144 gint utils_get_line_endings(const gchar* buffer, gsize size);
 145
 146 gboolean utils_isbrace(gchar c, gboolean include_angles);
 147
 148 gboolean utils_is_opening_brace(gchar c, gboolean include_angles);
 149
 150 gint utils_write_file(const gchar *filename, const gchar *text);
 151
 152 gchar *utils_find_open_xml_tag(const gchar sel[], gint size);
 153
 154 const gchar *utils_find_open_xml_tag_pos(const gchar sel[], gint size);
 155
 156 gboolean utils_is_short_html_tag(const gchar *tag_name);
 157
 158 void utils_ensure_same_eol_characters(GString *string, gint target_eol_mode);
 159
 160 const gchar *utils_get_eol_char(gint eol_mode);
 161
 162 const gchar *utils_get_eol_name(gint eol_mode);
 163
 164 gboolean utils_atob(const gchar *str);
 165
 166 void utils_tidy_path(gchar *filename);
 167
 168 gboolean utils_is_absolute_path(const gchar *path);
 169
 170 const gchar *utils_path_skip_root(const gchar *path);
 171
 172 gdouble utils_scale_round(gdouble val, gdouble factor);
 173
 174 gboolean utils_str_equal(const gchar *a, const gchar *b);
 175
 176 gchar *utils_remove_ext_from_filename(const gchar *filename);
 177
 178 gchar utils_brace_opposite(gchar ch);
 179
 180 gchar *utils_get_hostname(void);
 181
 182 gint utils_string_find(GString *haystack, gint start, gint end, const gchar *needle);
 183
 184 gint utils_string_replace(GString *str, gint pos, gint len, const gchar *replace);
 185
 186 guint utils_string_replace_all(GString *haystack, const gchar *needle, const gchar *replace);
 187
 188 guint utils_string_replace_first(GString *haystack, const gchar *needle, const gchar *replace);
 189
 190 guint utils_string_regex_replace_all(GString *haystack, GRegex *regex,
 191                 guint match_num, const gchar *replace, gboolean literal);
 192
 193 void utils_str_replace_all(gchar **haystack, const gchar *needle, const gchar *replacement);
 194
 195 gint utils_strpos(const gchar* haystack, const gchar *needle);
 196
 197 gchar *utils_get_date_time(const gchar *format, time_t *time_to_use);
 198
 199 gchar *utils_get_initials(const gchar *name);
 200
 201 gboolean utils_get_setting_boolean(GKeyFile *config, const gchar *section, const gchar *key, const gboolean default_value);
 202
 203 gint utils_get_setting_integer(GKeyFile *config, const gchar *section, const gchar *key, const gint default_value);
 204
 205 gchar *utils_get_setting_string(GKeyFile *config, const gchar *section, const gchar *key, const gchar *default_value);
 206
 207 gchar *utils_get_hex_from_color(GdkColor *color);
 208
 209 guint utils_invert_color(guint color);
 210
 211 const gchar *utils_get_default_dir_utf8(void);
 212
 213 gchar *utils_get_current_file_dir_utf8(void);
 214
 215 void utils_beep(void);
 216
 217 gchar *utils_make_human_readable_str(guint64 size, gulong block_size,
 218                                                                          gulong display_unit);
 219
 220 gint utils_strtod(const gchar *source, gchar **end, gboolean with_route);
 221
 222 gchar *utils_get_current_time_string(void);
 223
 224 GIOChannel *utils_set_up_io_channel(gint fd, GIOCondition cond, gboolean nblock,
 225                                                                         GIOFunc func, gpointer data);
 226
 227 gchar **utils_read_file_in_array(const gchar *filename);
 228
 229 gboolean utils_str_replace_escape(gchar *string, gboolean keep_backslash);
 230
 231 gboolean utils_wrap_string(gchar *string, gint wrapstart);
 232
 233 gchar *utils_get_locale_from_utf8(const gchar *utf8_text);
 234
 235 gchar *utils_get_utf8_from_locale(const gchar *locale_text);
 236
 237 void utils_free_pointers(gsize arg_count, ...) G_GNUC_NULL_TERMINATED;
 238
 239 gchar **utils_strv_new(const gchar *first, ...) G_GNUC_NULL_TERMINATED;
 240
 241 gchar **utils_strv_join(gchar **first, gchar **second) G_GNUC_WARN_UNUSED_RESULT;
 242
 243 gint utils_mkdir(const gchar *path, gboolean create_parent_dirs);
 244
 245 GSList *utils_get_file_list(const gchar *path, guint *length, GError **error);
 246
 247 GSList *utils_get_file_list_full(const gchar *path, gboolean full_path, gboolean sort, GError **error);
 248
 249 GSList *utils_get_config_files(const gchar *subdir);
 250
 251 gchar *utils_get_help_url(const gchar *suffix);
 252
 253 gboolean utils_str_has_upper(const gchar *str);
 254
 255 gint utils_is_file_writable(const gchar *locale_filename);
 256
 257
 258 gboolean utils_spawn_sync(const gchar *dir, gchar **argv, gchar **env, GSpawnFlags flags,
 259                                                   GSpawnChildSetupFunc child_setup, gpointer user_data, gchar **std_out,
 260                                                   gchar **std_err, gint *exit_status, GError **error);
 261
 262 gboolean utils_spawn_async(const gchar *dir, gchar **argv, gchar **env, GSpawnFlags flags,
 263                                                    GSpawnChildSetupFunc child_setup, gpointer user_data, GPid *child_pid,
 264                                                    GError **error);
 265
 266 gint utils_str_casecmp(const gchar *s1, const gchar *s2);
 267
 268 gchar *utils_get_path_from_uri(const gchar *uri);
 269
 270 gboolean utils_is_uri(const gchar *uri);
 271
 272 gboolean utils_is_remote_path(const gchar *path);
 273
 274 gchar *utils_str_middle_truncate(const gchar *string, guint truncate_length);
 275
 276 gchar *utils_str_remove_chars(gchar *string, const gchar *chars);
 277
 278 gchar **utils_copy_environment(const gchar **exclude_vars, const gchar *first_varname, ...) G_GNUC_NULL_TERMINATED;
 279
 280 G_END_DECLS
 281
 282 #endif