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#include "xml.h"

gboolean ggp_xml_get_string(const xmlnode *xml, gchar *childName, gchar **var)
{
	char *str;
	
	g_return_val_if_fail(xml != NULL, FALSE);
	g_return_val_if_fail(var != NULL, FALSE);
	
	if (childName != NULL)
	{
		xml = xmlnode_get_child(xml, childName);
		g_return_val_if_fail(xml != NULL, FALSE);
	}
	
	str = xmlnode_get_data(xml);
	g_return_val_if_fail(str != NULL, FALSE);
	
	*var = str;
	return TRUE;
}

gboolean ggp_xml_get_bool(const xmlnode *xml, gchar *childName, gboolean *var)
{
	char *str;
	gboolean succ;
	
	succ = ggp_xml_get_string(xml, childName, &str);
	g_return_val_if_fail(succ, FALSE);
	
	*var = (strcmp(str, "true") == 0 ||
		strcmp(str, "True") == 0 ||
		strcmp(str, "TRUE") == 0 ||
		strcmp(str, "1") == 0);
	g_free(str);
	
	return TRUE;
}

gboolean ggp_xml_get_uint(const xmlnode *xml, gchar *childName, unsigned int *var)
{
	char *str, *endptr;
	gboolean succ;
	unsigned int val;
	
	succ = ggp_xml_get_string(xml, childName, &str);
	g_return_val_if_fail(succ, FALSE);
	
	errno = 0;
	val = strtoul(str, &endptr, 10);
	
	succ = (errno != ERANGE && endptr[0] == '\0');
	g_free(str);
	
	if (succ)
		*var = val;
	return succ;
}