//apply args to a conf file
void SDLAppSettings::parseArgs(const std::vector<std::string>& arguments, ConfFile& conffile, std::vector<std::string>* files) {
std::map<std::string, std::string>::iterator findit;
for(int i=0;i<arguments.size();i++) {
std::string args = arguments[i];
//remove leading hyphens
bool is_option = false;
while(args.size()>1 && args[0] == '-') {
args = args.substr(1, args.size()-1);
is_option = true;
}
if(args.size()==0) continue;
if(!is_option) {
if(files!=0) {
files->push_back(args);
}
continue;
}
//translate args with aliases
if((findit = arg_aliases.find(args)) != arg_aliases.end()) {
args = findit->second;
}
//NUMBERxNUMBER is a magic alias for viewport
if(args.size()>1 && args.rfind("x") != std::string::npos) {
std::string displayarg = args;
int width = 0;
int height = 0;
bool no_resize = false;
if(parseViewport(displayarg, width, height, no_resize)) {
if(width>0 && height>0) {
ConfSection* display_settings = conffile.getSection("display");
if(!display_settings) {
display_settings = conffile.addSection("display");
}
display_settings->setEntry("viewport", displayarg);
continue;
}
}
}
//get type
std::string arg_type;
if((findit = arg_types.find(args)) != arg_types.end()) {
arg_type = findit->second;
} else {
std::string unknown_option = std::string("unknown option ") + args;
throw ConfFileException(unknown_option, "", 0);
}
//get value (or set to true for booleans)
std::string argvalue;
if(arg_type == "bool") argvalue = "true";
else if((i+1)<arguments.size()) argvalue = arguments[++i];
//determine section
std::string section_name = default_section_name;
if((findit = conf_sections.find(args)) != conf_sections.end()) {
section_name = findit->second;
}
//command line options dont go into the conf file
if(section_name == "command-line") {
commandLineOption(args, argvalue);
continue;
}
//get section(s) of this type
ConfSectionList* sections = conffile.getSections(section_name);
if(sections == 0) {
conffile.addSection(section_name);
sections = conffile.getSections(section_name);
}
//apply to section
for(ConfSectionList::iterator it = sections->begin(); it != sections->end(); it++) {
ConfSection* section = *it;
if(arg_type == "multi-value") {
section->addEntry(args, argvalue);
} else {
section->setEntry(args, argvalue);
}
}
}
}
void ConfFile::load() {
debugLog("ConfFile::load(%s)", conffile.c_str());
clear();
char buff[1024];
int lineno = 0;
ConfSection* sec = 0;
std::ifstream in(conffile.c_str());
if(!in.is_open()) {
sprintf(buff, "failed to open config file %s", conffile.c_str());
std::string conf_error = std::string(buff);
throw ConfFileException(conf_error, conffile, 0);
}
std::string line;
while(std::getline(in, line)) {
lineno++;
std::vector<std::string> matches;
// blank line or commented out lines
if(line.size() == 0 || (line.size() > 0 && line[0] == '#')) {
continue;
// sections
} else if(ConfFile_section.match(line, &matches)) {
if(sec != 0) addSection(sec);
sec = new ConfSection(matches[0], lineno);
// key value pairs
} else if(ConfFile_key_value.match(line, &matches)) {
std::string key = matches[0];
std::string value = (matches.size()>1) ? matches[1] : "";
//trim whitespace
ConfFile::trim(value);
if(sec==0) sec = new ConfSection("", lineno);
sec->addEntry(key, value, lineno);
debugLog("%s: [%s] %s => %s", conffile.c_str(), sec->getName().c_str(), key.c_str(), value.c_str());
} else {
sprintf(buff, "%s, line %d: could not parse line", conffile.c_str(), lineno);
std::string conf_error = std::string(buff);
throw ConfFileException(conf_error, conffile, lineno);
}
}
if(sec != 0) addSection(sec);
in.close();
}