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 "includes.h"
  19 #include "str_list.h"
  20 #include "libbb/libbb.h"
  21
  22 int str_list_elt_init(str_list_elt_t *elt, char *data)
  23 {
  24     return void_list_elt_init((void_list_elt_t *) elt, data);
  25 }
  26
  27 void str_list_elt_deinit(str_list_elt_t *elt)
  28 {
  29     if (elt->data)
  30         free(elt->data);
  31     void_list_elt_deinit((void_list_elt_t *) elt);
  32 }
  33
  34 str_list_t *str_list_alloc()
  35 {
  36      str_list_t *list = xcalloc(1, sizeof(str_list_t));
  37      str_list_init(list);
  38      return list;
  39 }
  40
  41 int str_list_init(str_list_t *list)
  42 {
  43     return void_list_init((void_list_t *) list);
  44 }
  45
  46 void str_list_deinit(str_list_t *list)
  47 {
  48     str_list_elt_t *elt;
  49     while (!void_list_empty(list)) {
  50         elt = str_list_first(list);
  51         if (!elt)
  52             return;
  53         list_del_init(&elt->node);
  54         free(elt->data);
  55         elt->data=NULL;
  56         free(elt);
  57     }
  58 }
  59
  60 int str_list_append(str_list_t *list, char *data)
  61 {
  62     return void_list_append((void_list_t *) list, xstrdup(data));
  63 }
  64
  65 int str_list_push(str_list_t *list, char *data)
  66 {
  67     return void_list_push((void_list_t *) list, xstrdup(data));
  68 }
  69
  70 str_list_elt_t *str_list_pop(str_list_t *list)
  71 {
  72     return (str_list_elt_t *) void_list_pop((void_list_t *) list);
  73 }
  74
  75 void str_list_remove(str_list_t *list, str_list_elt_t **iter)
  76 {
  77     char *str = void_list_remove((void_list_t *) list,
  78                                                (void_list_elt_t **) iter);
  79
  80     if (str)
  81         free(str);
  82 }
  83
  84 void str_list_remove_elt(str_list_t *list, const char *target_str)
  85 {
  86      char *str = void_list_remove_elt((void_list_t *) list,
  87                                          (void *)target_str,
  88                                          (void_list_cmp_t)strcmp);
  89      if (str)
  90          free(str);
  91 }
  92
  93 str_list_elt_t *str_list_first(str_list_t *list) {
  94     return (str_list_elt_t * )void_list_first((void_list_t *) list);
  95 }
  96
  97 str_list_elt_t *str_list_prev(str_list_t *list, str_list_elt_t *node) {
  98     return (str_list_elt_t * )void_list_prev((void_list_t *) list, (void_list_elt_t *)node);
  99 }
 100
 101 str_list_elt_t *str_list_next(str_list_t *list, str_list_elt_t *node) {
 102     return (str_list_elt_t * )void_list_next((void_list_t *) list, (void_list_elt_t *)node);
 103 }
 104
 105 str_list_elt_t *str_list_last(str_list_t *list) {
 106     return (str_list_elt_t * )void_list_last((void_list_t *) list);
 107 }
 108
 109
 110 void str_list_purge(str_list_t *list) {
 111     str_list_deinit(list);
 112     free(list);
 113 }