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// file : xsd-frontend/types.hxx
// copyright : Copyright (c) 2005-2014 Code Synthesis Tools CC
// license : GNU GPL v2 + exceptions; see accompanying LICENSE file
#ifndef XSD_FRONTEND_TYPES_HXX
#define XSD_FRONTEND_TYPES_HXX
#include <string>
#include <cstddef> // std::size_t
namespace XSDFrontend
{
using std::size_t;
namespace Bits
{
struct None {};
template <typename C>
struct NarrowerChar
{
typedef None Type;
};
template <>
struct NarrowerChar<wchar_t>
{
typedef char Type;
};
}
struct NonRepresentable: std::exception
{
virtual char const*
what () const throw ();
};
template <typename C, typename NC = typename Bits::NarrowerChar<C>::Type>
class StringTemplate;
template <>
class StringTemplate<Bits::None, Bits::None>
{
};
template <typename C, typename NC>
class StringTemplate : public std::basic_string<C>
{
typedef std::basic_string<C> Base;
typedef std::basic_string<NC> NarrowerBase;
Base&
base ()
{
return *this;
}
Base const&
base () const
{
return *this;
}
public:
typedef typename Base::size_type size_type;
using Base::npos;
public:
StringTemplate ()
{
}
StringTemplate (StringTemplate const& str,
size_type pos,
size_type n = npos)
: Base (str, pos, n)
{
}
StringTemplate (C const* s, size_type n)
: Base (s, n)
{
}
StringTemplate (C const* s)
: Base (s)
{
}
StringTemplate (size_type n, C c)
: Base (n, c)
{
}
template <typename I>
StringTemplate(I begin, I end)
: Base (begin, end)
{
}
StringTemplate (StringTemplate const& other)
: Base (other)
{
}
// Conversion from Base.
//
StringTemplate (Base const& str)
: Base (str)
{
}
// Conversion from the Narrower type. Experimental.
//
StringTemplate (NC const* s)
{
from_narrow (s);
}
StringTemplate (StringTemplate<NC> const& other)
{
from_narrow (other.c_str ());
}
StringTemplate (NarrowerBase const& other)
{
from_narrow (other.c_str ());
}
// Assignment.
//
StringTemplate&
operator= (StringTemplate const& str)
{
base () = str;
return *this;
}
StringTemplate&
operator= (C const* s)
{
base () = s;
return *this;
}
StringTemplate&
operator= (C c)
{
base () = c;
return *this;
}
// Assignment from Base.
//
StringTemplate&
operator= (Base const& str)
{
base () = str;
return *this;
}
public:
StringTemplate&
operator+= (StringTemplate const& str)
{
base () += str;
return *this;
}
StringTemplate&
operator+= (C const* s)
{
base () += s;
return *this;
}
StringTemplate&
operator+= (C c)
{
base () += c;
return *this;
}
// Conversion to the Narrower type.
//
public:
StringTemplate<NC>
to_narrow () const;
// Conversion to bool.
//
private:
typedef void (StringTemplate::*BooleanConvertible)();
void true_ () {}
public:
operator BooleanConvertible () const
{
return this->empty () ? 0 : &StringTemplate::true_;
}
private:
void
from_narrow (NC const* s);
};
template<typename C>
StringTemplate<C>
operator+ (StringTemplate<C> const& lhs, StringTemplate<C> const& rhs)
{
return StringTemplate<C> (lhs) += rhs;
}
template<typename C>
StringTemplate<C>
operator+ (C const* lhs, StringTemplate<C> const& rhs)
{
return StringTemplate<C> (lhs) += rhs;
}
template<typename C>
StringTemplate<C>
operator+ (StringTemplate<C> const& lhs, C const* rhs)
{
return StringTemplate<C> (lhs) += rhs;
}
template<typename C>
StringTemplate<C>
operator+ (C lhs, StringTemplate<C> const& rhs)
{
return StringTemplate<C> (1, lhs) += rhs;
}
template<typename C>
StringTemplate<C>
operator+ (StringTemplate<C> const& lhs, C rhs)
{
return StringTemplate<C> (lhs) += rhs;
}
typedef StringTemplate<char> NarrowString;
typedef StringTemplate<wchar_t> WideString;
typedef WideString String;
}
#endif // XSD_FRONTEND_TYPES_HXX
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