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/*
* Copyright (C) 2013 Patrick "P. J." McDermott
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this program. If not, see
* <http://www.gnu.org/licenses/>.
*/
#include <string.h>
#include <stdio.h>
#include <inttypes.h>
#include <expat.h>
#include <SDL_stdinc.h>
#include "xml.h"
#include "logging.h"
struct xml_node {
void *data;
XML_StartElementHandler start;
XML_EndElementHandler end;
XML_CharacterDataHandler charhndl;
struct xml_node *parent;
};
int
xml_check_tag(const char *found, const char *expected)
{
return strcmp(found, expected) == 0;
}
void
xml_unexpected_start_tag(XML_Parser p, const char *found, const char *expected)
{
warn("Found \"%s\" start tag where expected one of \"%s\" in map",
found, expected);
XML_StopParser(p, XML_FALSE);
}
void
xml_unexpected_end_tag(XML_Parser p, const char *found, const char *expected)
{
warn("Found \"%s\" end tag where expected one of \"%s\" in map",
found, expected);
XML_StopParser(p, XML_FALSE);
}
void
xml_get_uint32_attr(XML_Parser p, const char **attr, const char *name,
Uint32 *dest, int req)
{
for (; attr[0] != NULL; attr += 2) {
if (strcmp(attr[0], name) == 0) {
if (sscanf(attr[1], "%" PRIu32, dest) == 1) {
return;
} else if (req) {
warn("Invalid \"%s\" attribute value", name);
XML_StopParser(p, XML_FALSE);
}
}
}
if (req) {
warn("Required attribute \"%s\" not found", name);
XML_StopParser(p, XML_FALSE);
}
}
void
xml_get_int_attr(XML_Parser p, const char **attr, const char *name,
int *dest, int req)
{
for (; attr[0] != NULL; attr += 2) {
if (strcmp(attr[0], name) == 0) {
if (sscanf(attr[1], "%d", dest) == 1) {
return;
} else if (req) {
warn("Invalid \"%s\" attribute value", name);
XML_StopParser(p, XML_FALSE);
}
}
}
if (req) {
warn("Required attribute \"%s\" not found", name);
XML_StopParser(p, XML_FALSE);
}
}
void
xml_get_string_attr(XML_Parser p, const char **attr, const char *name,
char **dest, int req)
{
for (; attr[0] != NULL; attr += 2) {
if (strcmp(attr[0], name) == 0) {
*dest = strdup(attr[1]);
return;
}
}
if (req) {
warn("Required attribute \"%s\" not found", name);
XML_StopParser(p, XML_FALSE);
}
}
void
xml_node_push(XML_Parser p, void *data,
XML_StartElementHandler start, XML_EndElementHandler end,
XML_CharacterDataHandler charhndl)
{
struct xml_node *n;
n = malloc(sizeof(*n));
if (n == NULL) {
return;
}
n->data = data;
n->start = start;
n->end = end;
n->charhndl = charhndl;
n->parent = (struct xml_node *) XML_GetUserData(p);
XML_SetUserData(p, n);
XML_SetStartElementHandler(p, n->start);
XML_SetEndElementHandler(p, n->end);
XML_SetCharacterDataHandler(p, n->charhndl);
}
void *
xml_node_pop(XML_Parser p)
{
struct xml_node *n;
void *data;
n = (struct xml_node *) XML_GetUserData(p);
data = n->data;
XML_SetUserData(p, n->parent);
free(n);
n = (struct xml_node *) XML_GetUserData(p);
if (n == NULL) {
XML_SetStartElementHandler(p, NULL);
XML_SetEndElementHandler(p, NULL);
XML_SetCharacterDataHandler(p, NULL);
} else {
XML_SetStartElementHandler(p, n->start);
XML_SetEndElementHandler(p, n->end);
XML_SetCharacterDataHandler(p, n->charhndl);
}
return data;
}
void *
xml_node_peek(XML_Parser p)
{
struct xml_node *n;
n = (struct xml_node *) XML_GetUserData(p);
return n->data;
}
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