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 along
  18  *      with this program; if not, write to the Free Software Foundation, Inc.,
  19  *      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 #include <string.h>
  31 #include <time.h>
  32
  33 #include <glib.h>
  34 #include <gdk/gdk.h> /* for GdkColor */
  35
  36 G_BEGIN_DECLS
  37
  38 /** Returns @c TRUE if @a ptr is @c NULL or @c *ptr is @c FALSE. */
  39 #define EMPTY(ptr) \
  40         (!(ptr) || !*(ptr))
  41
  42 /** @deprecated 2013/08 - use @c !EMPTY() instead. */
  43 #ifndef GEANY_DISABLE_DEPRECATED
  44 #define NZV(ptr) (!EMPTY(ptr))
  45 #endif
  46
  47 /** Assigns @a result to @a ptr, then frees the old value.
  48  * @a result can be an expression using the 'old' value of @a ptr.
  49  * E.g. @code SETPTR(str, g_strndup(str, 5)); @endcode
  50  **/
  51 #define SETPTR(ptr, result) \
  52         do setptr(ptr, result) while (0)
  53
  54 /** @deprecated 2011/11/15 - use SETPTR() instead. */
  55 #define setptr(ptr, result) \
  56         {\
  57                 gpointer setptr_tmp = ptr;\
  58                 ptr = result;\
  59                 g_free(setptr_tmp);\
  60         }
  61
  62 /** Duplicates a string on the stack using @c g_alloca().
  63  * Like glibc's @c strdupa(), but portable.
  64  * @note You must include @c string.h yourself.
  65  * @warning Don't use excessively or for long strings otherwise there may be stack exhaustion -
  66  *          see the GLib docs for @c g_alloca(). */
  67 #define utils_strdupa(str) \
  68         strcpy(g_alloca(strlen(str) + 1), str)
  69
  70 /* Get a keyfile setting, using the home keyfile if the key exists,
  71  * otherwise system keyfile. */
  72 #define utils_get_setting(type, home, sys, group, key, default_val)\
  73         (g_key_file_has_key(home, group, key, NULL)) ?\
  74                 utils_get_setting_##type(home, group, key, default_val) :\
  75                 utils_get_setting_##type(sys, group, key, default_val)
  76
  77 /* ignore the case of filenames and paths under WIN32, causes errors if not */
  78 #ifdef G_OS_WIN32
  79 #define utils_filenamecmp(a, b) utils_str_casecmp((a), (b))
  80 #else
  81 #define utils_filenamecmp(a, b) strcmp((a), (b))
  82 #endif
  83
  84
  85 /** Iterates all the items in @a array using pointers.
  86  * @param item pointer to an item in @a array.
  87  * @param array C array to traverse.
  88  * @param len Length of the array. */
  89 #define foreach_c_array(item, array, len) \
  90         for (item = array; item < &array[len]; item++)
  91
  92 /** Iterates all items in @a array.
  93  * @param type Type of @a item.
  94  * @param item pointer to item in @a array.
  95  * @param array @c GArray to traverse. */
  96 #define foreach_array(type, item, array) \
  97         foreach_c_array(item, ((type*)(gpointer)array->data), array->len)
  98
  99 /** Iterates all the pointers in @a ptr_array.
 100  * @param item pointer in @a ptr_array.
 101  * @param idx @c guint index into @a ptr_array.
 102  * @param ptr_array @c GPtrArray to traverse. */
 103 #define foreach_ptr_array(item, idx, ptr_array) \
 104         for (idx = 0, item = ((ptr_array)->len > 0 ? g_ptr_array_index((ptr_array), 0) : NULL); \
 105                 idx < (ptr_array)->len; ++idx, item = g_ptr_array_index((ptr_array), idx))
 106
 107 /** Iterates all the nodes in @a list.
 108  * @param node should be a (@c GList*).
 109  * @param list @c GList to traverse. */
 110 #define foreach_list(node, list) \
 111         for (node = list; node != NULL; node = node->next)
 112
 113 /** Iterates all the nodes in @a list.
 114  * @param node should be a (@c GSList*).
 115  * @param list @c GSList to traverse. */
 116 #define foreach_slist(node, list) \
 117         foreach_list(node, list)
 118
 119 /** Iterates through each unsorted filename in a @c GDir.
 120  * @param filename (@c const @c gchar*) locale-encoded filename, without path. Do not modify or free.
 121  * @param dir @c GDir created with @c g_dir_open(). Call @c g_dir_close() afterwards.
 122  * @see utils_get_file_list() if you want a sorted list.
 123  * @since Geany 0.19. */
 124 #define foreach_dir(filename, dir)\
 125         for ((filename) = g_dir_read_name(dir); (filename) != NULL; (filename) = g_dir_read_name(dir))
 126
 127 /** Iterates through each character in @a string.
 128  * @param char_ptr Pointer to character.
 129  * @param string String to traverse.
 130  * @warning Doesn't include null terminating character.
 131  * @since Geany 0.19. */
 132 #define foreach_str(char_ptr, string) \
 133         for (char_ptr = string; *char_ptr; char_ptr++)
 134
 135 /** Iterates a null-terminated string vector.
 136  * @param str_ptr @c gchar** pointer to string element.
 137  * @param strv Can be @c NULL.
 138  * @since Geany 0.20 */
 139 #define foreach_strv(str_ptr, strv)\
 140         if (!(strv)) {} else foreach_str(str_ptr, strv)
 141
 142 /** Iterates from 0 to @a size.
 143  * @param i Integer.
 144  * @param size Number of iterations.
 145  * @since Geany 0.20. */
 146 #define foreach_range(i, size) \
 147         for (i = 0; i < size; i++)
 148
 149
 150 gboolean utils_str_equal(const gchar *a, const gchar *b);
 151
 152 guint utils_string_replace_all(GString *haystack, const gchar *needle, const gchar *replace);
 153
 154 GSList *utils_get_file_list(const gchar *path, guint *length, GError **error);
 155
 156 GSList *utils_get_file_list_full(const gchar *path, gboolean full_path, gboolean sort, GError **error);
 157
 158 gint utils_write_file(const gchar *filename, const gchar *text);
 159
 160 gchar *utils_get_locale_from_utf8(const gchar *utf8_text);
 161
 162 gchar *utils_get_utf8_from_locale(const gchar *locale_text);
 163
 164 gchar *utils_remove_ext_from_filename(const gchar *filename);
 165
 166 gint utils_mkdir(const gchar *path, gboolean create_parent_dirs);
 167
 168 gboolean utils_get_setting_boolean(GKeyFile *config, const gchar *section, const gchar *key, const gboolean default_value);
 169
 170 gint utils_get_setting_integer(GKeyFile *config, const gchar *section, const gchar *key, const gint default_value);
 171
 172 gchar *utils_get_setting_string(GKeyFile *config, const gchar *section, const gchar *key, const gchar *default_value);
 173
 174 gboolean utils_spawn_sync(const gchar *dir, gchar **argv, gchar **env, GSpawnFlags flags,
 175                                                   GSpawnChildSetupFunc child_setup, gpointer user_data, gchar **std_out,
 176                                                   gchar **std_err, gint *exit_status, GError **error);
 177
 178 gboolean utils_spawn_async(const gchar *dir, gchar **argv, gchar **env, GSpawnFlags flags,
 179                                                    GSpawnChildSetupFunc child_setup, gpointer user_data, GPid *child_pid,
 180                                                    GError **error);
 181
 182 gint utils_str_casecmp(const gchar *s1, const gchar *s2);
 183
 184 gchar *utils_get_date_time(const gchar *format, time_t *time_to_use);
 185
 186 void utils_open_browser(const gchar *uri);
 187
 188 guint utils_string_replace_first(GString *haystack, const gchar *needle, const gchar *replace);
 189
 190 gchar *utils_str_middle_truncate(const gchar *string, guint truncate_length);
 191
 192 gchar *utils_str_remove_chars(gchar *string, const gchar *chars);
 193
 194 gchar **utils_copy_environment(const gchar **exclude_vars, const gchar *first_varname, ...) G_GNUC_NULL_TERMINATED;
 195
 196 gchar *utils_find_open_xml_tag(const gchar sel[], gint size);
 197
 198 const gchar *utils_find_open_xml_tag_pos(const gchar sel[], gint size);
 199
 200
 201 #ifdef GEANY_PRIVATE
 202
 203 gint utils_get_line_endings(const gchar* buffer, gsize size);
 204
 205 gboolean utils_isbrace(gchar c, gboolean include_angles);
 206
 207 gboolean utils_is_opening_brace(gchar c, gboolean include_angles);
 208
 209 gboolean utils_is_short_html_tag(const gchar *tag_name);
 210
 211 void utils_ensure_same_eol_characters(GString *string, gint target_eol_mode);
 212
 213 const gchar *utils_get_eol_char(gint eol_mode);
 214
 215 const gchar *utils_get_eol_name(gint eol_mode);
 216
 217 gboolean utils_atob(const gchar *str);
 218
 219 void utils_tidy_path(gchar *filename);
 220
 221 gboolean utils_is_absolute_path(const gchar *path);
 222
 223 const gchar *utils_path_skip_root(const gchar *path);
 224
 225 gdouble utils_scale_round(gdouble val, gdouble factor);
 226
 227 gchar utils_brace_opposite(gchar ch);
 228
 229 gint utils_string_find(GString *haystack, gint start, gint end, const gchar *needle);
 230
 231 gint utils_string_replace(GString *str, gint pos, gint len, const gchar *replace);
 232
 233 guint utils_string_regex_replace_all(GString *haystack, GRegex *regex,
 234                 guint match_num, const gchar *replace, gboolean literal);
 235
 236 void utils_str_replace_all(gchar **haystack, const gchar *needle, const gchar *replacement);
 237
 238 gint utils_strpos(const gchar* haystack, const gchar *needle);
 239
 240 gchar *utils_get_initials(const gchar *name);
 241
 242 gchar *utils_get_hex_from_color(GdkColor *color);
 243
 244 const gchar *utils_get_default_dir_utf8(void);
 245
 246 gchar *utils_get_current_file_dir_utf8(void);
 247
 248 void utils_beep(void);
 249
 250 gchar *utils_make_human_readable_str(guint64 size, gulong block_size,
 251                                                                          gulong display_unit);
 252
 253 gboolean utils_parse_color(const gchar *spec, GdkColor *color);
 254
 255 gint utils_color_to_bgr(const GdkColor *color);
 256
 257 gint utils_parse_color_to_bgr(const gchar *spec);
 258
 259 gchar *utils_get_current_time_string(void);
 260
 261 GIOChannel *utils_set_up_io_channel(gint fd, GIOCondition cond, gboolean nblock,
 262                                                                         GIOFunc func, gpointer data);
 263
 264 gchar **utils_read_file_in_array(const gchar *filename);
 265
 266 gboolean utils_str_replace_escape(gchar *string, gboolean keep_backslash);
 267
 268 gboolean utils_wrap_string(gchar *string, gint wrapstart);
 269
 270 void utils_free_pointers(gsize arg_count, ...) G_GNUC_NULL_TERMINATED;
 271
 272 gchar **utils_strv_new(const gchar *first, ...) G_GNUC_NULL_TERMINATED;
 273
 274 gchar **utils_strv_join(gchar **first, gchar **second) G_GNUC_WARN_UNUSED_RESULT;
 275
 276 GSList *utils_get_config_files(const gchar *subdir);
 277
 278 gchar *utils_get_help_url(const gchar *suffix);
 279
 280 gboolean utils_str_has_upper(const gchar *str);
 281
 282 gint utils_is_file_writable(const gchar *locale_filename);
 283
 284
 285 gchar *utils_get_path_from_uri(const gchar *uri);
 286
 287 gboolean utils_is_uri(const gchar *uri);
 288
 289 gboolean utils_is_remote_path(const gchar *path);
 290
 291 GDate *utils_parse_date(const gchar *input);
 292
 293 gchar *utils_parse_and_format_build_date(const gchar *input);
 294
 295 gchar *utils_get_user_config_dir(void);
 296
 297 #endif /* GEANY_PRIVATE */
 298
 299 G_END_DECLS
 300
 301 #endif /* GEANY_UTILS_H */