src/libcaptive/client/libxml.c

   1 /* $Id$
   2  * Supplementary captive utilities for libxml2
   3  * Copyright (C) 2003 Jan Kratochvil <project-captive@jankratochvil.net>
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; exactly version 2 of June 1991 is required
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  17  */
  18
  19
  20 #include "config.h"
  21
  22 #include "captive/libxml.h"     /* self */
  23 #include <glib/gmessages.h>
  24 #include <glib/ghook.h>
  25 #include <string.h>
  26 #include "captive/macros.h"
  27
  28
  29 struct captive_libxml_string_drop_stack {
  30         GHookList g_hook_list;
  31         };
  32
  33
  34 gint64 captive_libxml_sscanf_gint64(const gchar *gint64_string)
  35 {
  36 int errint;
  37 gint64 r;
  38 int gint64_string_len;
  39
  40         g_return_val_if_fail(gint64_string!=NULL,0);
  41
  42         errint=sscanf(gint64_string,"%" G_GINT64_FORMAT "%n",&r,&gint64_string_len);
  43         g_assert(errint==1 || errint==2 /* %n */);
  44         g_assert(gint64_string_len==(int)strlen(gint64_string));
  45
  46         return r;
  47 }
  48
  49
  50 static void captive_libxml_string_drop_hook_func(const xmlChar *xml_string /* data */)
  51 {
  52         g_return_if_fail(xml_string!=NULL);
  53
  54         xmlFree((xmlChar *)xml_string);
  55 }
  56
  57 G_CONST_RETURN gchar *captive_libxml_string_drop(struct captive_libxml_string_drop_stack **drop_stackp,const xmlChar *xml_string)
  58 {
  59 GHook *g_hook;
  60
  61         g_return_val_if_fail(drop_stackp!=NULL,NULL);
  62
  63         if (!xml_string)
  64                 return NULL;
  65
  66         if (!*drop_stackp) {
  67                 captive_new(*drop_stackp);
  68                 g_hook_list_init(&(*drop_stackp)->g_hook_list,sizeof(GHook));
  69                 }
  70
  71         g_hook=g_hook_alloc(&(*drop_stackp)->g_hook_list);
  72         g_hook->func=(GHookFunc)captive_libxml_string_drop_hook_func;
  73         g_hook->data=(xmlChar *)xml_string;
  74         g_hook_append(&(*drop_stackp)->g_hook_list,g_hook);
  75
  76         return (const gchar *)xml_string;
  77 }
  78
  79
  80 void captive_libxml_string_drop_flush(struct captive_libxml_string_drop_stack **drop_stackp)
  81 {
  82 struct captive_libxml_string_drop_stack *drop_stack;
  83
  84         g_return_if_fail(drop_stackp!=NULL);
  85
  86         if (!(drop_stack=*drop_stackp))
  87                 return;
  88         *drop_stackp=NULL;
  89
  90         g_hook_list_invoke(&drop_stack->g_hook_list,
  91                         FALSE); /* may_recurse */
  92         g_hook_list_clear(&drop_stack->g_hook_list);
  93
  94         g_free(drop_stack);
  95 }