libopkg/str_list.c

   1 /* str_list.c - the opkg package management system
   2
   3    Carl D. Worth
   4
   5    Copyright (C) 2001 University of Southern California
   6
   7    This program is free software; you can redistribute it and/or
   8    modify it under the terms of the GNU General Public License as
   9    published by the Free Software Foundation; either version 2, or (at
  10    your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful, but
  13    WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15    General Public License for more details.
  16 */
  17
  18 #include "str_list.h"
  19 #include "libbb/libbb.h"
  20
  21 void str_list_elt_init(str_list_elt_t *elt, char *data)
  22 {
  23     void_list_elt_init((void_list_elt_t *) elt, data);
  24 }
  25
  26 void str_list_elt_deinit(str_list_elt_t *elt)
  27 {
  28     if (elt->data)
  29         free(elt->data);
  30     void_list_elt_deinit((void_list_elt_t *) elt);
  31 }
  32
  33 str_list_t *str_list_alloc()
  34 {
  35      str_list_t *list = xcalloc(1, sizeof(str_list_t));
  36      str_list_init(list);
  37      return list;
  38 }
  39
  40 void str_list_init(str_list_t *list)
  41 {
  42     void_list_init((void_list_t *) list);
  43 }
  44
  45 void str_list_deinit(str_list_t *list)
  46 {
  47     str_list_elt_t *elt;
  48     while (!void_list_empty(list)) {
  49         elt = str_list_first(list);
  50         if (!elt)
  51             return;
  52         list_del_init(&elt->node);
  53         free(elt->data);
  54         elt->data=NULL;
  55         free(elt);
  56     }
  57 }
  58
  59 void str_list_append(str_list_t *list, char *data)
  60 {
  61     void_list_append((void_list_t *) list, xstrdup(data));
  62 }
  63
  64 void str_list_push(str_list_t *list, char *data)
  65 {
  66     void_list_push((void_list_t *) list, xstrdup(data));
  67 }
  68
  69 str_list_elt_t *str_list_pop(str_list_t *list)
  70 {
  71     return (str_list_elt_t *) void_list_pop((void_list_t *) list);
  72 }
  73
  74 void str_list_remove(str_list_t *list, str_list_elt_t **iter)
  75 {
  76     char *str = void_list_remove((void_list_t *) list,
  77                                                (void_list_elt_t **) iter);
  78
  79     if (str)
  80         free(str);
  81 }
  82
  83 void str_list_remove_elt(str_list_t *list, const char *target_str)
  84 {
  85      char *str = void_list_remove_elt((void_list_t *) list,
  86                                          (void *)target_str,
  87                                          (void_list_cmp_t)strcmp);
  88      if (str)
  89          free(str);
  90 }
  91
  92 str_list_elt_t *str_list_first(str_list_t *list) {
  93     return (str_list_elt_t * )void_list_first((void_list_t *) list);
  94 }
  95
  96 str_list_elt_t *str_list_prev(str_list_t *list, str_list_elt_t *node) {
  97     return (str_list_elt_t * )void_list_prev((void_list_t *) list, (void_list_elt_t *)node);
  98 }
  99
 100 str_list_elt_t *str_list_next(str_list_t *list, str_list_elt_t *node) {
 101     return (str_list_elt_t * )void_list_next((void_list_t *) list, (void_list_elt_t *)node);
 102 }
 103
 104 str_list_elt_t *str_list_last(str_list_t *list) {
 105     return (str_list_elt_t * )void_list_last((void_list_t *) list);
 106 }
 107
 108
 109 void str_list_purge(str_list_t *list) {
 110     str_list_deinit(list);
 111     free(list);
 112 }