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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.
*
* $URL$
* $Id$
*
*/
#if defined(WIN32)
#include <windows.h>
// winnt.h defines ARRAYSIZE, but we want our own one...
#undef ARRAYSIZE
#endif
#include "common/config-manager.h"
#include "common/file.h"
#include "common/util.h"
#include "common/system.h"
DECLARE_SINGLETON(Common::ConfigManager);
#define MAXLINELEN 256
static bool isValidDomainName(const Common::String &domName) {
const char *p = domName.c_str();
while (*p && (isalnum(*p) || *p == '-' || *p == '_'))
p++;
return *p == 0;
}
namespace Common {
#if !(defined(PALMOS_ARM) || defined(PALMOS_DEBUG) || defined(__GP32__))
const String ConfigManager::kApplicationDomain("scummvm");
const String ConfigManager::kTransientDomain("__TRANSIENT");
#else
const char *ConfigManager::kApplicationDomain = "scummvm";
const char *ConfigManager::kTransientDomain = "__TRANSIENT";
#endif
#pragma mark -
ConfigManager::ConfigManager()
: _activeDomain(0) {
}
void ConfigManager::loadDefaultConfigFile() {
_appDomain.clear();
_gameDomains.clear();
_transientDomain.clear();
_domainSaveOrder.clear();
// Open the default config file
SeekableReadStream *stream = g_system->openConfigFileForReading();
_filename.clear(); // clear the filename to indicate that we are using the default config file
// ... load it ...
assert(stream);
loadStream(*stream);
// ... and close it again.
delete stream;
flushToDisk();
}
void ConfigManager::loadConfigFile(const String &filename) {
_appDomain.clear();
_gameDomains.clear();
_transientDomain.clear();
_domainSaveOrder.clear();
_filename = filename;
File cfg_file;
if (!cfg_file.open(filename)) {
printf("Creating configuration file: %s\n", filename.c_str());
} else {
printf("Using configuration file: %s\n", _filename.c_str());
loadStream(cfg_file);
}
}
void ConfigManager::loadStream(SeekableReadStream &stream) {
String domain;
String comment;
int lineno = 0;
// TODO: Detect if a domain occurs multiple times (or likewise, if
// a key occurs multiple times inside one domain).
while (!stream.eos() && !stream.ioFailed()) {
lineno++;
// Read a line
String line;
while (line.lastChar() != '\n') {
char buf[MAXLINELEN];
if (!stream.readLine_NEW(buf, MAXLINELEN))
break;
line += buf;
}
if (line.size() == 0) {
// Do nothing
} else if (line[0] == '#') {
// Accumulate comments here. Once we encounter either the start
// of a new domain, or a key-value-pair, we associate the value
// of the 'comment' variable with that entity.
comment += line;
} else if (line[0] == '[') {
// It's a new domain which begins here.
const char *p = line.c_str() + 1;
// Get the domain name, and check whether it's valid (that
// is, verify that it only consists of alphanumerics,
// dashes and underscores).
while (*p && (isalnum(*p) || *p == '-' || *p == '_'))
p++;
switch (*p) {
case '\0':
error("Config file buggy: missing ] in line %d", lineno);
break;
case ']':
domain = String(line.c_str() + 1, p - (line.c_str() + 1));
//domain = String(line.c_str() + 1, p); // TODO: Pending Common::String changes
break;
default:
error("Config file buggy: Invalid character '%c' occured in domain name in line %d", *p, lineno);
}
// Store domain comment
if (domain == kApplicationDomain) {
_appDomain.setDomainComment(comment);
} else {
_gameDomains[domain].setDomainComment(comment);
}
comment.clear();
_domainSaveOrder.push_back(domain);
} else {
// This line should be a line with a 'key=value' pair, or an empty one.
// Skip leading whitespaces
const char *t = line.c_str();
while (isspace(*t))
t++;
// Skip empty lines / lines with only whitespace
if (*t == 0)
continue;
// If no domain has been set, this config file is invalid!
if (domain.empty()) {
error("Config file buggy: Key/value pair found outside a domain in line %d", lineno);
}
// Split string at '=' into 'key' and 'value'. First, find the "=" delimeter.
const char *p = strchr(t, '=');
if (!p)
error("Config file buggy: Junk found in line line %d: '%s'", lineno, t);
// Extract the key/value pair
String key(t, p);
String value(p + 1);
// Trim of spaces
key.trim();
value.trim();
// Finally, store the key/value pair in the active domain
set(key, value, domain);
// Store comment
if (domain == kApplicationDomain) {
_appDomain.setKVComment(key, comment);
} else {
_gameDomains[domain].setKVComment(key, comment);
}
comment.clear();
}
}
}
void ConfigManager::flushToDisk() {
#ifndef __DC__
WriteStream *stream;
if (_filename.empty()) {
// Write to the default config file
stream = g_system->openConfigFileForWriting();
if (!stream) // If writing to the config file is not possible, do nothing
return;
} else {
DumpFile *dump = new DumpFile();
assert(dump);
if (!dump->open(_filename)) {
warning("Unable to write configuration file: %s", _filename.c_str());
delete dump;
return;
}
stream = dump;
}
// First write the domains in _domainSaveOrder, in that order.
// Note: It's possible for _domainSaveOrder to list domains which
// are not present anymore.
StringList::const_iterator i;
for (i = _domainSaveOrder.begin(); i != _domainSaveOrder.end(); ++i) {
if (kApplicationDomain == *i) {
writeDomain(*stream, *i, _appDomain);
} else if (_gameDomains.contains(*i)) {
writeDomain(*stream, *i, _gameDomains[*i]);
}
}
DomainMap::const_iterator d;
// Now write the domains which haven't been written yet
if (find(_domainSaveOrder.begin(), _domainSaveOrder.end(), kApplicationDomain) == _domainSaveOrder.end())
writeDomain(*stream, kApplicationDomain, _appDomain);
for (d = _gameDomains.begin(); d != _gameDomains.end(); ++d) {
if (find(_domainSaveOrder.begin(), _domainSaveOrder.end(), d->_key) == _domainSaveOrder.end())
writeDomain(*stream, d->_key, d->_value);
}
delete stream;
#endif // !__DC__
}
void ConfigManager::writeDomain(WriteStream &stream, const String &name, const Domain &domain) {
if (domain.empty())
return; // Don't bother writing empty domains.
String comment;
// Write domain comment (if any)
comment = domain.getDomainComment();
if (!comment.empty())
stream.writeString(comment);
// Write domain start
stream.writeByte('[');
stream.writeString(name);
stream.writeByte(']');
stream.writeByte('\n');
// Write all key/value pairs in this domain, including comments
Domain::const_iterator x;
for (x = domain.begin(); x != domain.end(); ++x) {
if (!x->_value.empty()) {
// Write comment (if any)
if (domain.hasKVComment(x->_key)) {
comment = domain.getKVComment(x->_key);
stream.writeString(comment);
}
// Write the key/value pair
stream.writeString(x->_key);
stream.writeByte('=');
stream.writeString(x->_value);
stream.writeByte('\n');
}
}
stream.writeByte('\n');
}
#pragma mark -
const ConfigManager::Domain *ConfigManager::getDomain(const String &domName) const {
assert(!domName.empty());
assert(isValidDomainName(domName));
if (domName == kTransientDomain)
return &_transientDomain;
if (domName == kApplicationDomain)
return &_appDomain;
if (_gameDomains.contains(domName))
return &_gameDomains[domName];
return 0;
}
ConfigManager::Domain *ConfigManager::getDomain(const String &domName) {
assert(!domName.empty());
assert(isValidDomainName(domName));
if (domName == kTransientDomain)
return &_transientDomain;
if (domName == kApplicationDomain)
return &_appDomain;
if (_gameDomains.contains(domName))
return &_gameDomains[domName];
return 0;
}
#pragma mark -
bool ConfigManager::hasKey(const String &key) const {
// Search the domains in the following order:
// 1) the transient domain,
// 2) the active game domain (if any),
// 3) the application domain.
// The defaults domain is explicitly *not* checked.
if (_transientDomain.contains(key))
return true;
if (_activeDomain && _activeDomain->contains(key))
return true;
if (_appDomain.contains(key))
return true;
return false;
}
bool ConfigManager::hasKey(const String &key, const String &domName) const {
// FIXME: For now we continue to allow empty domName to indicate
// "use 'default' domain". This is mainly needed for the SCUMM ConfigDialog
// and should be removed ASAP.
if (domName.empty())
return hasKey(key);
const Domain *domain = getDomain(domName);
if (!domain)
return false;
return domain->contains(key);
}
void ConfigManager::removeKey(const String &key, const String &domName) {
Domain *domain = getDomain(domName);
if (!domain)
error("ConfigManager::removeKey(%s, %s) called on non-existent domain",
key.c_str(), domName.c_str());
domain->erase(key);
}
#pragma mark -
const String & ConfigManager::get(const String &key) const {
if (_transientDomain.contains(key))
return _transientDomain[key];
else if (_activeDomain && _activeDomain->contains(key))
return (*_activeDomain)[key];
else if (_appDomain.contains(key))
return _appDomain[key];
else if (_defaultsDomain.contains(key))
return _defaultsDomain[key];
#if !(defined(PALMOS_ARM) || defined(PALMOS_DEBUG) || defined(__GP32__))
return String::emptyString;
#else
return ConfMan._emptyString;
#endif
}
const String & ConfigManager::get(const String &key, const String &domName) const {
// FIXME: For now we continue to allow empty domName to indicate
// "use 'default' domain". This is mainly needed for the SCUMM ConfigDialog
// and should be removed ASAP.
if (domName.empty())
return get(key);
const Domain *domain = getDomain(domName);
if (!domain)
error("ConfigManager::get(%s,%s) called on non-existent domain",
key.c_str(), domName.c_str());
if (domain->contains(key))
return (*domain)[key];
return _defaultsDomain.get(key);
if (!domain->contains(key)) {
#if 1
#if !(defined(PALMOS_ARM) || defined(PALMOS_DEBUG) || defined(__GP32__))
return String::emptyString;
#else
return ConfMan._emptyString;
#endif
#else
error("ConfigManager::get(%s,%s) called on non-existent key",
key.c_str(), domName.c_str());
#endif
}
return (*domain)[key];
}
int ConfigManager::getInt(const String &key, const String &domName) const {
String value(get(key, domName));
char *errpos;
// For now, be tolerant against missing config keys. Strictly spoken, it is
// a bug in the calling code to retrieve an int for a key which isn't even
// present... and a default value of 0 seems rather arbitrary.
if (value.empty())
return 0;
// We use the special value '0' for the base passed to strtol. Doing that
// makes it possible to enter hex values as "0x1234", but also decimal
// values ("123") are still valid.
int ivalue = (int)strtol(value.c_str(), &errpos, 0);
if (value.c_str() == errpos)
error("ConfigManager::getInt(%s,%s): '%s' is not a valid integer",
key.c_str(), domName.c_str(), errpos);
return ivalue;
}
bool ConfigManager::getBool(const String &key, const String &domName) const {
String value(get(key, domName));
if ((value == "true") || (value == "yes") || (value == "1"))
return true;
if ((value == "false") || (value == "no") || (value == "0"))
return false;
error("ConfigManager::getBool(%s,%s): '%s' is not a valid bool",
key.c_str(), domName.c_str(), value.c_str());
}
#pragma mark -
void ConfigManager::set(const String &key, const String &value) {
// Remove the transient domain value, if any.
_transientDomain.erase(key);
// Write the new key/value pair into the active domain, resp. into
// the application domain if no game domain is active.
if (_activeDomain)
(*_activeDomain)[key] = value;
else
_appDomain[key] = value;
}
void ConfigManager::set(const String &key, const String &value, const String &domName) {
// FIXME: For now we continue to allow empty domName to indicate
// "use 'default' domain". This is mainly needed for the SCUMM ConfigDialog
// and should be removed ASAP.
if (domName.empty()) {
set(key, value);
return;
}
Domain *domain = getDomain(domName);
if (!domain)
error("ConfigManager::set(%s,%s,%s) called on non-existent domain",
key.c_str(), value.c_str(), domName.c_str());
(*domain)[key] = value;
// TODO/FIXME: We used to erase the given key from the transient domain
// here. Do we still want to do that?
// It was probably there to simplify the options dialogs code:
// Imagine you are editing the current options (via the SCUMM ConfigDialog,
// for example). If you edit the game domain for that, but a matching
// entry in the transient domain is present, than your changes may not take
// effect. So you want to remove the key from the transient domain before
// adding it to the active domain.
// But doing this here seems rather evil... need to comb the options dialog
// code to find out if it's still necessary, and if that's the case, how
// to replace it in a clean fashion...
/*
if (domName == kTransientDomain)
_transientDomain[key] = value;
else {
if (domName == kApplicationDomain) {
_appDomain[key] = value;
if (_activeDomainName.empty() || !_gameDomains[_activeDomainName].contains(key))
_transientDomain.erase(key);
} else {
_gameDomains[domName][key] = value;
if (domName == _activeDomainName)
_transientDomain.erase(key);
}
}
*/
}
void ConfigManager::setInt(const String &key, int value, const String &domName) {
char tmp[128];
snprintf(tmp, sizeof(tmp), "%i", value);
set(key, String(tmp), domName);
}
void ConfigManager::setBool(const String &key, bool value, const String &domName) {
set(key, String(value ? "true" : "false"), domName);
}
#pragma mark -
void ConfigManager::registerDefault(const String &key, const String &value) {
_defaultsDomain[key] = value;
}
void ConfigManager::registerDefault(const String &key, const char *value) {
registerDefault(key, String(value));
}
void ConfigManager::registerDefault(const String &key, int value) {
char tmp[128];
snprintf(tmp, sizeof(tmp), "%i", value);
registerDefault(key, tmp);
}
void ConfigManager::registerDefault(const String &key, bool value) {
registerDefault(key, value ? "true" : "false");
}
#pragma mark -
void ConfigManager::setActiveDomain(const String &domName) {
if (domName.empty()) {
_activeDomain = 0;
} else {
assert(isValidDomainName(domName));
_activeDomain = & _gameDomains[domName];
}
_activeDomainName = domName;
}
void ConfigManager::addGameDomain(const String &domName) {
assert(!domName.empty());
assert(isValidDomainName(domName));
// TODO: Do we want to generate an error/warning if a domain with
// the given name already exists?
_gameDomains[domName];
// Add it to the _domainSaveOrder, if it's not already in there
if (find(_domainSaveOrder.begin(), _domainSaveOrder.end(), domName) == _domainSaveOrder.end())
_domainSaveOrder.push_back(domName);
}
void ConfigManager::removeGameDomain(const String &domName) {
assert(!domName.empty());
assert(isValidDomainName(domName));
_gameDomains.erase(domName);
}
void ConfigManager::renameGameDomain(const String &oldName, const String &newName) {
if (oldName == newName)
return;
assert(!oldName.empty());
assert(!newName.empty());
assert(isValidDomainName(oldName));
assert(isValidDomainName(newName));
// _gameDomains[newName].merge(_gameDomains[oldName]);
Domain &oldDom = _gameDomains[oldName];
Domain &newDom = _gameDomains[newName];
Domain::const_iterator iter;
for (iter = oldDom.begin(); iter != oldDom.end(); ++iter)
newDom[iter->_key] = iter->_value;
_gameDomains.erase(oldName);
}
bool ConfigManager::hasGameDomain(const String &domName) const {
assert(!domName.empty());
return isValidDomainName(domName) && _gameDomains.contains(domName);
}
#pragma mark -
const String &ConfigManager::Domain::get(const String &key) const {
const_iterator iter(find(key));
if (iter != end())
return iter->_value;
#if !(defined(PALMOS_ARM) || defined(PALMOS_DEBUG) || defined(__GP32__))
return String::emptyString;
#else
return ConfMan._emptyString;
#endif
}
void ConfigManager::Domain::setDomainComment(const String &comment) {
_domainComment = comment;
}
const String &ConfigManager::Domain::getDomainComment() const {
return _domainComment;
}
void ConfigManager::Domain::setKVComment(const String &key, const String &comment) {
_keyValueComments[key] = comment;
}
const String &ConfigManager::Domain::getKVComment(const String &key) const {
return _keyValueComments[key];
}
bool ConfigManager::Domain::hasKVComment(const String &key) const {
return _keyValueComments.contains(key);
}
} // End of namespace Common
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