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/* ScummVM - Scumm Interpreter
* Copyright (C) 2005 The ScummVM project
*
* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* $Header$
*
*/
#ifndef COMMON_CONFIG_FILE_H
#define COMMON_CONFIG_FILE_H
#include "common/config-manager.h"
#include "common/list.h"
#include "common/map.h"
#include "common/str.h"
#include "common/stream.h"
namespace Common {
/**
* This class allows reading/writing INI style config files.
* It is used by the ConfigManager for storage, but can also
* be used by other code if it needs to read/write custom INI
* files.
*
* Lines starting with a '#' are ignored (i.e. treated as comments).
* Some effort is made to preserve comments, though.
*
* This class makes no attempts to provide fast access to key/value pairs.
* In particular, it stores all sections and k/v pairs in lists, not
* in dictionaries/maps. This makes it very easy to read/write the data
* from/to files, but of course is not appropriate for fast access.
* The main reason is that this class is indeed geared toward doing precisely
* that!
* If you need fast access to the game config, use higher level APIs, like the
* one provided by ConfigManager.
*/
class ConfigFile {
public:
typedef Map<String, bool, IgnoreCaseComparator> StringSet;
struct KeyValue {
String key;
String value;
String comment;
};
/** A section in a config file. I.e. corresponds to something like this:
* [mySection]
* key=value
*
* Comments are also stored, to keep users happy who like editing their
* config files manually.
*/
struct Section {
String name;
List<KeyValue> keys;
String comment;
bool hasKey(const String &key) const;
KeyValue* getKey(const String &key) const;
void setKey(const String &key, const String &value);
void removeKey(const String &key);
};
public:
ConfigFile();
~ConfigFile();
// TODO: Maybe add a copy constructor etc.?
/**
* Check whether the given string is a valid section or key name.
* For that, it must only consist of letters, numbers, dashes and
* underscores. In particular, white space and "#", "=", "[", "]"
* are not valid!
*/
static bool isValidName(const Common::String &name);
/** Reset everything stored in this config file. */
void clear();
bool loadFromFile(const String &filename);
bool loadFromStream(SeekableReadStream &stream);
bool saveToFile(const String &filename);
bool saveToStream(WriteStream &stream);
bool hasSection(const String §ion) const;
void removeSection(const String §ion);
void renameSection(const String &oldName, const String &newName);
bool hasKey(const String &key, const String §ion) const;
bool getKey(const String &key, const String §ion, String &value) const;
void setKey(const String &key, const String §ion, const String &value);
void removeKey(const String &key, const String §ion);
void listSections(StringSet &set);
void listKeyValues(StringMap &kv);
private:
List<Section> _sections;
Section *getSection(const String §ion);
const Section *getSection(const String §ion) const;
};
/*
- ConfigMan owns a config file
- allow direct access to that config file (for the launcher)
- simplify and unify the regular ConfigMan API in exchange
*/
} // End of namespace Common
#endif
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