libpurple/protocols/gg/xml.c

   1 /* purple
   2  *
   3  * Purple is the legal property of its developers, whose names are too numerous
   4  * to list here.  Please refer to the COPYRIGHT file distributed with this
   5  * source distribution.
   6  *
   7  * Rewritten from scratch during Google Summer of Code 2012
   8  * by Tomek Wasilczyk (http://www.wasilczyk.pl).
   9  *
  10  * Previously implemented by:
  11  *  - Arkadiusz Miskiewicz <misiek@pld.org.pl> - first implementation (2001);
  12  *  - Bartosz Oler <bartosz@bzimage.us> - reimplemented during GSoC 2005;
  13  *  - Krzysztof Klinikowski <grommasher@gmail.com> - some parts (2009-2011).
  14  *
  15  * This program is free software; you can redistribute it and/or modify
  16  * it under the terms of the GNU General Public License as published by
  17  * the Free Software Foundation; either version 2 of the License, or
  18  * (at your option) any later version.
  19  *
  20  * This program is distributed in the hope that it will be useful,
  21  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  22  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  23  * GNU General Public License for more details.
  24  *
  25  * You should have received a copy of the GNU General Public License
  26  * along with this program; if not, write to the Free Software
  27  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02111-1301  USA
  28  */
  29
  30 #include "xml.h"
  31
  32 #include "debug.h"
  33
  34 gboolean ggp_xml_get_string(const PurpleXmlNode *xml, gchar *childName, gchar **var)
  35 {
  36         char *str;
  37
  38         g_return_val_if_fail(xml != NULL, FALSE);
  39         g_return_val_if_fail(var != NULL, FALSE);
  40
  41         if (childName != NULL) {
  42                 xml = purple_xmlnode_get_child(xml, childName);
  43                 if (xml == NULL)
  44                         return FALSE;
  45         }
  46
  47         str = purple_xmlnode_get_data(xml);
  48         if (str == NULL)
  49                 return FALSE;
  50
  51         *var = str;
  52         return TRUE;
  53 }
  54
  55 gboolean ggp_xml_get_bool(const PurpleXmlNode *xml, gchar *childName, gboolean *var)
  56 {
  57         char *str;
  58         gboolean succ;
  59
  60         succ = ggp_xml_get_string(xml, childName, &str);
  61         if (!succ)
  62                 return FALSE;
  63
  64         *var = (strcmp(str, "true") == 0 ||
  65                 strcmp(str, "True") == 0 ||
  66                 strcmp(str, "TRUE") == 0 ||
  67                 strcmp(str, "1") == 0);
  68         g_free(str);
  69
  70         return TRUE;
  71 }
  72
  73 gboolean ggp_xml_get_uint(const PurpleXmlNode *xml, gchar *childName, unsigned int *var)
  74 {
  75         char *str, *endptr;
  76         gboolean succ;
  77         unsigned int val;
  78
  79         succ = ggp_xml_get_string(xml, childName, &str);
  80         if (!succ)
  81                 return FALSE;
  82
  83         errno = 0;
  84         val = strtoul(str, &endptr, 10);
  85
  86         succ = (errno != ERANGE && endptr[0] == '\0');
  87         g_free(str);
  88
  89         if (succ)
  90                 *var = val;
  91         return succ;
  92 }
  93
  94 gboolean ggp_xml_set_string(PurpleXmlNode *xml, gchar *childName, const gchar *val)
  95 {
  96         g_return_val_if_fail(xml != NULL, FALSE);
  97         g_return_val_if_fail(val != NULL, FALSE);
  98
  99         if (childName != NULL) {
 100                 PurpleXmlNode *child = purple_xmlnode_get_child(xml, childName);
 101                 if (child == NULL)
 102                         child = purple_xmlnode_new_child(xml, childName);
 103                 xml = child;
 104         }
 105
 106         ggp_xmlnode_remove_children(xml);
 107         purple_xmlnode_insert_data(xml, val, -1);
 108
 109         return TRUE;
 110 }
 111
 112 gboolean ggp_xml_set_bool(PurpleXmlNode *xml, gchar *childName, gboolean val)
 113 {
 114         return ggp_xml_set_string(xml, childName, val ? "true" : "false");
 115 }
 116
 117 gboolean ggp_xml_set_uint(PurpleXmlNode *xml, gchar *childName, unsigned int val)
 118 {
 119         gchar buff[20];
 120         g_snprintf(buff, sizeof(buff), "%u", val);
 121         return ggp_xml_set_string(xml, childName, buff);
 122 }
 123
 124 void ggp_xmlnode_remove_children(PurpleXmlNode *xml)
 125 {
 126         PurpleXmlNode *child = xml->child;
 127         while (child) {
 128                 PurpleXmlNode *next = child->next;
 129                 if (child->type != PURPLE_XMLNODE_TYPE_ATTRIB)
 130                         purple_xmlnode_free(child);
 131                 child = next;
 132         }
 133 }
 134
 135 unsigned int ggp_xml_child_count(PurpleXmlNode *xml, const gchar *childName)
 136 {
 137         PurpleXmlNode *child;
 138         unsigned int count = 0;
 139
 140         g_return_val_if_fail(xml != NULL, 0);
 141
 142         if (childName) {
 143                 child = purple_xmlnode_get_child(xml, childName);
 144                 while (child) {
 145                         child = purple_xmlnode_get_next_twin(child);
 146                         count++;
 147                 }
 148         } else {
 149                 child = xml->child;
 150                 while (child) {
 151                         child = child->next;
 152                         count++;
 153                 }
 154         }
 155
 156         return count;
 157 }