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/////////////////////////////////////////////////////////////
// //
// Copyright (c) 2003-2011 by The University of Queensland //
// Earth Systems Science Computational Centre (ESSCC) //
// http://www.uq.edu.au/esscc //
// //
// Primary Business: Brisbane, Queensland, Australia //
// Licensed under the Open Software License version 3.0 //
// http://www.opensource.org/licenses/osl-3.0.php //
// //
/////////////////////////////////////////////////////////////
#ifndef ESYS_LSMSTRINGUTIL_H
#define ESYS_LSMSTRINGUTIL_H
#include <string>
#include <vector>
#include <sstream>
namespace esys
{
namespace lsm
{
typedef std::vector<std::string> StringVector;
/**
* Convenience functions for string manipulation.
*/
namespace StringUtil
{
typedef esys::lsm::StringVector StringVector;
template <class TmplIterator>
class StdOStreamOp
{
public:
std::string operator()(const TmplIterator &it) const
{
std::stringstream sStream;
sStream << *it;
return sStream.str();
}
};
template<class TmplIterator, class TmplStringOperator>
inline
std::string join(
TmplIterator begin,
TmplIterator end,
const std::string &delim,
TmplStringOperator toStringOp = StdOStreamOp<TmplIterator>())
{
std::string str;
if (begin != end)
{
TmplIterator it = begin;
str = toStringOp(begin);
for (it++; it != end; it++)
{
str += delim + toStringOp(it);
}
}
return str;
}
template<class TmplContainer, class TmplStringOperator>
inline
std::string join(
const TmplContainer &container,
const std::string &delim,
TmplStringOperator toStringOp = StdOStreamOp<typename TmplContainer::const_iterator>())
{
typename TmplContainer::const_iterator it = container.begin();
typename TmplContainer::const_iterator end = container.end();
std::string str;
if (it != end)
{
str = toStringOp(it);
for (it++; it != end; it++)
{
str += delim + toStringOp(it);
}
}
return str;
}
inline
std::string joinStringVector(
const StringVector &container,
const std::string &delim
)
{
StringVector::const_iterator it = container.begin();
StringVector::const_iterator end = container.end();
std::string str;
if (it != end)
{
str = *it;
for (it++; it != end; it++)
{
str += delim + *it;
}
}
return str;
}
template <class TmplData>
class StdIStreamOp
{
public:
TmplData operator()(const std::string &str) const
{
std::stringstream sStream(str);
TmplData data;
sStream >> data;
return data;
}
};
template <typename TmplData>
TmplData to(const std::string &str)
{
return StdIStreamOp<TmplData>()(str);
}
template <typename TmplData>
std::string toString(const TmplData &data)
{
std::stringstream sStream;
sStream << data;
return sStream.str();
}
template<class TmplData, class TmplStdStreamOp>
inline
std::vector<TmplData> split(
const std::string &str,
const std::string &delim,
TmplStdStreamOp fromStringOp = StdIStreamOp<TmplData>()
)
{
std::vector<TmplData> vec;
std::string::size_type prevPos = 0;
std::string::size_type currPos = str.find(delim);
while (currPos != std::string::npos)
{
vec.push_back(
fromStringOp(str.substr(prevPos, currPos - prevPos))
);
prevPos = currPos + delim.length();
currPos = str.find(delim, prevPos);
}
if (prevPos < str.length())
{
vec.push_back(
fromStringOp(str.substr(prevPos, str.length()))
);
}
else if (prevPos == str.length())
{
vec.push_back(fromStringOp(""));
}
return vec;
}
inline
StringVector splitStrings(const std::string &str, const std::string &delim)
{
return split<std::string, StdIStreamOp<std::string> >(str, delim, StdIStreamOp<std::string>());
}
inline
std::string trim(const std::string &str)
{
size_t b = 0;
for (; (b < str.size()) && std::isspace(str.at(b)); b++)
{
// continue
}
size_t e = 0;
if (str.size() > 0)
{
e = str.size()-1;
for (; (e > b) && std::isspace(str.at(e)); e--)
{
// continue
}
}
return ((e >= b) ? str.substr(b, e-b+1) : "");
}
};
};
};
#endif
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