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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* $URL$
* $Id$
*
*/
#include "common/util.h"
#include "common/system.h"
#include "common/events.h"
#include "common/hashmap.h"
#include "common/hash-str.h"
#include "common/xmlparser.h"
namespace Common {
using namespace Graphics;
void XMLParser::debug_testEval() {
static const char *debugConfigText =
"</* lol this is just a moronic test */drawdata id = \"background_default\" cache = true>\n"
"<drawstep func = \"roundedsq\" fill = \"gradient\" gradient_start = \"255, 255, 128\" gradient_end = \"128, 128, 128\" size = \"auto\"/>\n"
"//<drawstep func = \"roundedsq\" fill = \"none\" color = /*\"0, 0, 0\"*/\"0, 1, 2\" size = \"auto\"/>\n"
"</ drawdata>/* lol this is just a simple test*/\n";
_text = strdup(debugConfigText);
Common::String test = "12, 125, 125";
printf("\n\nRegex result: %s.\n\n", test.regexMatch("^[d]*,[d]*,[d]*$", true) ? "Success." : "Fail");
parse();
}
void XMLParser::parserError(const char *error_string) {
_state = kParserError;
printf("PARSER ERROR: %s\n", error_string);
}
void XMLParser::parseActiveKey(bool closed) {
if (keyCallback(_activeKey.top()->name) == false) {
parserError("Unhandled value inside key.");
return;
}
if (closed) {
delete _activeKey.pop();
}
}
bool XMLParser::parseKeyValue(Common::String keyName) {
assert(_activeKey.empty() == false);
if (_activeKey.top()->values.contains(keyName))
return false;
_token.clear();
char stringStart;
if (_text[_pos] == '"' || _text[_pos] == '\'') {
stringStart = _text[_pos++];
while (_text[_pos] && _text[_pos] != stringStart)
_token += _text[_pos++];
if (_text[_pos++] == 0)
return false;
} else if (!parseToken()) {
return false;
}
_activeKey.top()->values[keyName] = _token;
return true;
}
bool XMLParser::parse() {
bool activeClosure = false;
bool selfClosure = false;
_state = kParserNeedKey;
_pos = 0;
_activeKey.clear();
while (_text[_pos]) {
if (_state == kParserError)
break;
if (skipSpaces())
continue;
if (skipComments())
continue;
switch (_state) {
case kParserNeedKey:
if (_text[_pos++] != '<') {
parserError("Expecting key start.");
break;
}
if (_text[_pos] == 0) {
parserError("Unexpected end of file.");
break;
}
if (_text[_pos] == '/' && _text[_pos + 1] != '*') {
_pos++;
activeClosure = true;
}
_state = kParserNeedKeyName;
break;
case kParserNeedKeyName:
if (!parseToken()) {
parserError("Invalid key name.");
break;
}
if (activeClosure) {
if (_activeKey.empty() || _token != _activeKey.top()->name)
parserError("Unexpected closure.");
} else {
ParserNode *node = new ParserNode;
node->name = _token;
_activeKey.push(node);
}
_state = kParserNeedPropertyName;
break;
case kParserNeedPropertyName:
if (activeClosure) {
activeClosure = false;
delete _activeKey.pop();
if (_text[_pos++] != '>')
parserError("Invalid syntax in key closure.");
else
_state = kParserNeedKey;
break;
}
selfClosure = (_text[_pos] == '/');
if ((selfClosure && _text[_pos + 1] == '>') || _text[_pos] == '>') {
parseActiveKey(selfClosure);
_pos += selfClosure ? 2 : 1;
_state = kParserNeedKey;
break;
}
if (!parseToken())
parserError("Error when parsing key value.");
else
_state = kParserNeedPropertyOperator;
break;
case kParserNeedPropertyOperator:
if (_text[_pos++] != '=')
parserError("Unexpected character after key name.");
else
_state = kParserNeedPropertyValue;
break;
case kParserNeedPropertyValue:
if (!parseKeyValue(_token))
parserError("Unable to parse key value.");
else
_state = kParserNeedPropertyName;
break;
default:
break;
}
}
if (_state == kParserError) {
return false;
}
if (_state != kParserNeedKey || !_activeKey.empty()) {
parserError("Unexpected end of file.");
return false;
}
return true;
}
}
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