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/*
-----------------------------------------------------------------------
Copyright: 2010-2018, imec Vision Lab, University of Antwerp
2014-2018, CWI, Amsterdam
Contact: astra@astra-toolbox.com
Website: http://www.astra-toolbox.com/
This file is part of the ASTRA Toolbox.
The ASTRA Toolbox 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
(at your option) any later version.
The ASTRA Toolbox 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 the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
-----------------------------------------------------------------------
*/
#include "astra/Utilities.h"
#include <sstream>
#include <locale>
#include <iomanip>
namespace astra {
namespace StringUtil {
int stringToInt(const std::string& s)
{
int i;
std::istringstream iss(s);
iss.imbue(std::locale::classic());
iss >> i;
if (iss.fail() || !iss.eof())
throw bad_cast();
return i;
}
int stringToInt(const std::string& s, int fallback)
{
int i;
std::istringstream iss(s);
iss.imbue(std::locale::classic());
iss >> i;
if (iss.fail() || !iss.eof())
return fallback;
return i;
}
float stringToFloat(const std::string& s)
{
return (float)stringToDouble(s);
}
double stringToDouble(const std::string& s)
{
double f;
std::istringstream iss(s);
iss.imbue(std::locale::classic());
iss >> f;
if (iss.fail() || !iss.eof())
throw bad_cast();
return f;
}
template<> float stringTo(const std::string& s) { return stringToFloat(s); }
template<> double stringTo(const std::string& s) { return stringToDouble(s); }
template<typename T>
std::vector<T> stringToNumericVector(const std::string &s)
{
std::vector<T> out;
out.reserve(100);
std::istringstream iss;
iss.imbue(std::locale::classic());
size_t length = s.size();
size_t current = 0;
size_t next;
do {
next = s.find_first_of(",;", current);
std::string t = s.substr(current, next - current);
iss.str(t);
iss.clear();
T f;
iss >> f;
if (iss.fail() || !iss.eof())
throw bad_cast();
out.push_back(f);
current = next + 1;
} while (next != std::string::npos && current != length);
return out;
}
std::vector<float> stringToFloatVector(const std::string &s)
{
return stringToNumericVector<float>(s);
}
std::vector<double> stringToDoubleVector(const std::string &s)
{
return stringToNumericVector<double>(s);
}
template<typename T>
std::vector<T> stringToVector(const std::string& s)
{
std::vector<T> out;
size_t length = s.size();
size_t current = 0;
size_t next;
do {
next = s.find_first_of(",;", current);
std::string t = s.substr(current, next - current);
out.push_back(stringTo<T>(t));
current = next + 1;
} while (next != std::string::npos && current != length);
return out;
}
std::string floatToString(float f)
{
std::ostringstream s;
s.imbue(std::locale::classic());
s << std::setprecision(9) << f;
return s.str();
}
std::string doubleToString(double f)
{
std::ostringstream s;
s.imbue(std::locale::classic());
s << std::setprecision(17) << f;
return s.str();
}
template<> std::string toString(float f) { return floatToString(f); }
template<> std::string toString(double f) { return doubleToString(f); }
void splitString(std::vector<std::string> &items, const std::string& s,
const char *delim)
{
items.clear();
size_t length = s.size();
size_t current = 0;
size_t next;
do {
next = s.find_first_of(delim, current);
items.push_back(s.substr(current, next - current));
current = next + 1;
} while (next != std::string::npos && current != length);
}
}
}
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