diff options
Diffstat (limited to 'src/core/librcscripts/api/str_list.h')
| -rw-r--r-- | src/core/librcscripts/api/str_list.h | 212 |
1 files changed, 0 insertions, 212 deletions
diff --git a/src/core/librcscripts/api/str_list.h b/src/core/librcscripts/api/str_list.h deleted file mode 100644 index 538ab82..0000000 --- a/src/core/librcscripts/api/str_list.h +++ /dev/null @@ -1,212 +0,0 @@ -/* - * str_list.h - * - * String list macros. - * - * Copyright (C) 2004,2005 Martin Schlemmer <azarah@nosferatu.za.org> - * - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation version 2 of the License. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 675 Mass Ave, Cambridge, MA 02139, USA. - * - * $Header$ - */ - -#ifndef __STR_LIST_H__ -#define __STR_LIST_H__ - -/* Add a new item to a string list. If the pointer to the list is NULL, - * allocate enough memory for the amount of entries needed. Ditto for - * when it already exists, but we add one more entry than it can - * contain. The list is NULL terminated. - * NOTE: _only_ memory for the list are allocated, and not for the items - that - * should be done by relevant code (unlike str_list_del_item() that will - * free the memory) */ -#define str_list_add_item(_string_list, _item, _error) \ - do { \ - char **_tmp_p; \ - int _i = 0; \ - if (!check_str (_item)) \ - { \ - goto _error; \ - } \ - while ((NULL != _string_list) && (NULL != _string_list[_i])) \ - { \ - _i++; \ - } \ - /* Amount of entries + new + terminator */ \ - _tmp_p = xrealloc (_string_list, sizeof (char *) * (_i + 2)); \ - if (NULL == _tmp_p) \ - { \ - goto _error; \ - } \ - _string_list = _tmp_p; \ - _string_list[_i] = _item; \ - /* Terminator */ \ - _string_list[_i+1] = NULL; \ - } while (0) - -/* Add a new item to a string list (foundamental the same as above), but make - * sure we have all the items alphabetically sorted. */ -#define str_list_add_item_sorted(_string_list, _item, _error) \ - do { \ - char **_tmp_p; \ - char *_str_p1; \ - char *_str_p2; \ - int _i = 0; \ - if (!check_str (_item)) \ - { \ - goto _error; \ - } \ - while ((NULL != _string_list) && (NULL != _string_list[_i])) \ - { \ - _i++; \ - } \ - /* Amount of entries + new + terminator */ \ - _tmp_p = xrealloc (_string_list, sizeof (char *) * (_i + 2)); \ - if (NULL == _tmp_p) \ - { \ - goto _error; \ - } \ - _string_list = _tmp_p; \ - if (0 == _i) \ - { \ - /* Needed so that the end NULL will propagate - * (iow, make sure our 'NULL != _str_p1' test below - * do not fail) */ \ - _string_list[_i] = NULL; \ - } \ - /* Actual terminator that needs adding */ \ - _string_list[_i+1] = NULL; \ - _i = 0; \ - /* See where we should insert the new item to have it all \ - * alphabetically sorted */ \ - while (NULL != _string_list[_i]) \ - { \ - if (strcmp (_string_list[_i], _item) > 0) \ - { \ - break; \ - } \ - _i++; \ - } \ - /* Now just insert the new item, and shift the rest one over. - * '_str_p2' is temporary storage to swap the indexes in a loop, - * and 'str_p1' is used to store the old value across the loop */ \ - _str_p1 = _string_list[_i]; \ - _string_list[_i] = _item; \ - do { \ - _i++;\ - _str_p2 = _string_list[_i]; \ - _string_list[_i] = _str_p1; \ - _str_p1 = _str_p2; \ - } while (NULL != _str_p1); \ - } while (0) - -/* Delete one entry from the string list, and shift the rest down if the entry - * was not at the end. For now we do not resize the amount of entries the - * string list can contain, and free the memory for the matching item */ -#define str_list_del_item(_string_list, _item, _error) \ - do { \ - int _i = 0; \ - if (!check_str (_item)) \ - { \ - goto _error; \ - } \ - if (NULL == _string_list) \ - { \ - errno = EINVAL; \ - DBG_MSG ("Invalid string list passed!\n"); \ - goto _error; \ - } \ - while (NULL != _string_list[_i]) \ - { \ - if (0 == strcmp (_item, _string_list[_i])) \ - { \ - break; \ - } \ - else \ - { \ - _i++; \ - } \ - } \ - if (NULL == _string_list[_i]) \ - { \ - errno = EINVAL; \ - DBG_MSG ("Invalid string list item passed!\n"); \ - goto _error; \ - } \ - free (_string_list[_i]); \ - /* Shift all the following items one forward */ \ - do { \ - _string_list[_i] = _string_list[_i+1]; \ - /* This stupidity is to shutup gcc */ \ - _i++; \ - } while (NULL != _string_list[_i]); \ - } while (0) - -/* Step through each entry in the string list, setting '_pos' to the - * beginning of the entry. '_counter' is used by the macro as index, - * but should not be used by code as index (or if really needed, then - * it should usually by +1 from what you expect, and should only be - * used in the scope of the macro) */ -#define str_list_for_each_item(_string_list, _pos, _counter) \ - if ((NULL != _string_list) && (0 == (_counter = 0))) \ - while (NULL != (_pos = _string_list[_counter++])) - -/* Same as above (with the same warning about '_counter'). Now we just - * have '_next' that are also used for indexing. Once again rather refrain - * from using it if not absolutely needed. The major difference to above, - * is that it should be safe from having the item removed from under you. */ -#define str_list_for_each_item_safe(_string_list, _pos, _next, _counter) \ - if ((NULL != _string_list) && (0 == (_counter = 0))) \ - /* First part of the while checks if this is the - * first loop, and if so setup _pos and _next - * and increment _counter */ \ - while ((((0 == _counter) \ - && (NULL != (_pos = _string_list[_counter])) \ - && (_pos != (_next = _string_list[++_counter]))) \ - /* Second part is when it is not the first loop - * and _pos was not removed from under us. We - * just increment _counter, and setup _pos and - * _next */ \ - || ((0 != _counter) \ - && (_pos == _string_list[_counter-1]) \ - && (_next == _string_list[_counter]) \ - && (NULL != (_pos = _string_list[_counter])) \ - && (_pos != (_next = _string_list[++_counter]))) \ - /* Last part is when _pos was removed from under - * us. We basically just setup _pos and _next, - * but leave _counter alone */ \ - || ((0 != _counter) \ - && (_pos != _string_list[_counter-1]) \ - && (_next == _string_list[_counter-1]) \ - && (NULL != (_pos = _string_list[_counter-1])) \ - && (_pos != (_next = _string_list[_counter]))))) - -/* Just free the whole string list */ -#define str_list_free(_string_list) \ - do { \ - if (NULL != _string_list) \ - { \ - int _i = 0; \ - while (NULL != _string_list[_i]) \ - { \ - free (_string_list[_i]); \ - _string_list[_i++] = NULL; \ - } \ - free (_string_list); \ - _string_list = NULL; \ - } \ - } while (0) - -#endif /* __STR_LIST_H__ */ |