hyperion.ng/dependencies/include/getoptPlusPlus/parameter.include.cc

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/* (C) 2011 Viktor Lofgren
*
* 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 3 of the License, or
* 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, see <http://www.gnu.org/licenses/>.
*/
#ifdef GETOPTPP_H
/* This file contains template voodoo, and due to the unique way GCC handles
* templates, it needs to be included as a header (and it -is-). Do not attempt to
* compile this file directly!
*/
template<typename T>
T &ParameterSet::add(char shortName, const char* longName, const char* description) {
T* p = new T(shortName, longName, description);
parameters.push_back(p);
return *p;
}
/*
*
* Class CommonParameter implementation
*
*
*/
template<typename SwitchingBehavior>
CommonParameter<SwitchingBehavior>::~CommonParameter() {}
template<typename SwitchingBehavior>
CommonParameter<SwitchingBehavior>::CommonParameter(char shortOption, const char *longOption,
const char* description) : Parameter(shortOption, longOption, description) {}
template<typename SwitchingBehavior>
bool CommonParameter<SwitchingBehavior>::isSet() const{
return SwitchingBehavior::isSet();
}
template<typename SwitchingBehavior>
std::string CommonParameter<SwitchingBehavior>::usageLine() const {
std::stringstream strstr;
if (hasShortOption())
{
strstr << "-" << shortOption() << ", ";
}
else
{
strstr << " ";
}
strstr.width(20);
strstr << std::left << "--" + longOption();
return strstr.str();
}
/*
*
* Class SwitchParameter
*
*
*/
template<typename SwitchingBehavior>
SwitchParameter<SwitchingBehavior>::SwitchParameter(char shortOption, const char *longOption,
const char* description) : CommonParameter<SwitchingBehavior>(shortOption, longOption, description) {}
template<typename SwitchingBehavior>
SwitchParameter<SwitchingBehavior>::~SwitchParameter() {}
template<typename SwitchingBehavior>
int SwitchParameter<SwitchingBehavior>::receive(ParserState& state) throw(Parameter::ParameterRejected) {
const std::string arg = state.get();
if(arg.at(0) != '-') return false;
if ((arg.at(1) == '-' && arg.substr(2) == this->longOption()) ||
(this->hasShortOption() && arg.at(1) == this->shortOption() && arg.length() == 2))
{
this->set();
return 1;
}
return 0;
}
/*
* PODParameter stuff
*
*/
template<typename T, typename SwitchingBehavior>
PODParameter<T, SwitchingBehavior>::PODParameter(char shortOption, const char *longOption,
const char* description) : CommonParameter<PresettableUniquelySwitchable>(shortOption, longOption, description) {}
template<typename T, typename SwitchingBehavior>
PODParameter<T, SwitchingBehavior>::~PODParameter() {}
template<typename T, typename SwitchingBehavior>
PODParameter<T, SwitchingBehavior>::operator T() const { return getValue(); }
template<typename T, typename SwitchingBehavior>
void PODParameter<T, SwitchingBehavior>::setDefault(T value) {
PresettableUniquelySwitchable::preset();
this->value = value;
}
template<typename T, typename SwitchingBehavior>
T PODParameter<T, SwitchingBehavior>::getValue() const {
if(!this->isSet()) {
throw std::runtime_error(
std::string("Attempting to retreive the argument of parameter") + this->longOption() + " but it hasn't been set!");
}
return value;
}
template<typename T, typename SwitchingBehavior>
std::string PODParameter<T, SwitchingBehavior>::usageLine() const {
std::stringstream strstr;
if (this->hasShortOption())
{
strstr << "-" << this->shortOption() << ", ";
}
else
{
strstr << " ";
}
strstr.width(20);
strstr << std::left << "--" + this->longOption() + " <arg>";
return strstr.str();
}
template<typename T, typename SwitchingBehavior>
int PODParameter<T, SwitchingBehavior>::receive(ParserState& state) throw(Parameter::ParameterRejected) {
const std::string arg = state.get();
if(arg.at(0) != '-') return false;
if((arg.at(1) == '-' && arg.substr(2) == this->longOption()) ||
(this->hasShortOption() && arg.at(1) == this->shortOption() && arg.length() == 2))
{
// retrieve the argument
std::string arg1 = state.peek();
if (arg1.length() == 0)
{
throw Parameter::ExpectedArgument(arg + ": expected an argument");
return 1;
}
this->set();
value = this->validate(arg1);
return 2;
}
return 0;
}
#endif