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/*
* ConfigManager.cpp
*
* Copyright (C) 2008 Matthias Schiffer <matthias@gamezock.de>
*
* 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 "Application.h"
#include "ConfigManager.h"
#include "ConfigEntry.h"
#include "Configurable.h"
#include "Tokenizer.h"
#include <fstream>
#include <stdexcept>
namespace Mad {
namespace Core {
bool ConfigManager::Compare::operator() (const Configurable *c1, const Configurable *c2) {
if(c1->getPriority() != c2->getPriority())
return c1->getPriority() > c2->getPriority();
else
return c1 < c2;
}
void ConfigManager::handleConfigEntry(const ConfigEntry &entry) {
bool handled = false;
for(std::set<Configurable*, Compare>::iterator c = configurables.begin(); c != configurables.end(); ++c) {
if((*c)->handleConfigEntry(entry, handled))
handled = true;
}
if(!handled)
application->logf(LoggerBase::LOG_WARNING, "Invalid config option '%s'.", entry[entry.getSize()-1].getKey().c_str());
}
bool ConfigManager::loadFile(const std::string &filename) {
if(finished)
return false;
std::ifstream file(filename.c_str());
ConfigEntry entry;
std::string line, input;
char delim;
std::vector<std::string> splitLine, lastConfigLine;
if(!file.good())
return false;
while(!(file.eof() && line.empty() && input.empty())) {
while(input.empty() && !file.eof())
std::getline(file, input);
if(input.empty())
break;
size_t pos = input.find_first_of("#{}");
if(pos == std::string::npos) {
line += input;
delim = '\n';
input.clear();
}
else {
line += input.substr(0, pos);
delim = input[pos];
input = input.substr(pos+1);
}
if(!Tokenizer::tokenize(line, splitLine)) {
line += delim;
continue;
}
if(!splitLine.empty()) {
pos = line.find_first_of(" \t");
entry.push(splitLine);
handleConfigEntry(entry);
entry.pop();
lastConfigLine = splitLine;
}
switch(delim) {
case '#':
input.clear();
break;
case '{':
entry.push(lastConfigLine);
break;
case '}':
entry.pop();
}
line.clear();
}
// TODO Depth check
return true;
}
void ConfigManager::finish() {
if(finished)
return;
for(std::set<Configurable*, Compare>::iterator c = configurables.begin(); c != configurables.end(); ++c)
(*c)->configFinished();
finished = true;
}
}
}
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