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Clean up code, add initial documentation draft

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[SVN r63082]
This commit is contained in:
Beman Dawes
2010-06-18 16:37:34 +00:00
parent fa2be5fde6
commit cab10052da
2 changed files with 194 additions and 30 deletions
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79
include/boost/io/quoted_manip.hpp
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@@ -1,12 +1,16 @@
// boost/io/quoted_manip.hpp ---------------------------------------------------------//
// Copyright Beman Dawes 2010
// Distributed under the Boost Software License, Version 1.0.
// See http://www.boost.org/LICENSE_1_0.txt
// Library home page http://www.boost.org/libs/io
//--------------------------------------------------------------------------------------//
#ifndef BOOST_QUOTE_MANIP
#define BOOST_QUOTE_MANIP
#ifndef BOOST_IO_QUOTED_MANIP
#define BOOST_IO_QUOTED_MANIP
#include <iosfwd>
#include <string>
@@ -20,25 +24,28 @@ namespace boost
// ------------ public interface ------------------------------------------------//
// manipulator for const std::basic_string&
template <class Char, class Traits, class Alloc>
detail::quoted_proxy<std::basic_string<Char, Traits, Alloc> const &, Char>
quoted(const std::basic_string<Char, Traits, Alloc>& s,
Char escape='\\', Char delim='\"');
template <class Char>
detail::quoted_proxy<const Char*, Char>
quoted(const Char* s, Char escape='\\', Char delim='\"');
// manipulator for non-const std::basic_string&
template <class Char, class Traits, class Alloc>
detail::quoted_proxy<std::basic_string<Char, Traits, Alloc> &, Char>
quoted(std::basic_string<Char, Traits, Alloc>& s,
Char escape='\\', Char delim='\"');
// manipulator for const C-string*
template <class Char>
detail::quoted_proxy<const Char*, Char>
quoted(const Char* s, Char escape='\\', Char delim='\"');
// ----------- implementation details -------------------------------------------//
namespace detail
{
// proxy used as an argument pack
template <class String, class Char>
struct quoted_proxy
{
@@ -50,34 +57,45 @@ namespace boost
: string(s_), escape(escape_), delim(delim_) {}
};
// abstract away difference between proxies with const or non-const basic_strings
template <class Char, class Traits, class Alloc>
std::basic_ostream<Char, Traits>& operator<<(std::basic_ostream<Char, Traits>& os,
const quoted_proxy<std::basic_string<Char, Traits, Alloc> const &, Char>& proxy)
std::basic_ostream<Char, Traits>&
basic_string_inserter_imp(std::basic_ostream<Char, Traits>& os,
std::basic_string<Char, Traits, Alloc> const & string, Char escape, Char delim)
{
os << proxy.delim;
std::basic_string<Char, Traits, Alloc>::const_iterator end_it = proxy.string.end();
for (std::basic_string<Char, Traits, Alloc>::const_iterator it = proxy.string.begin();
os << delim;
std::basic_string<Char, Traits, Alloc>::const_iterator end_it = string.end();
for (std::basic_string<Char, Traits, Alloc>::const_iterator it = string.begin();
it != end_it;
++it )
{
if (*it == proxy.delim || *it == proxy.escape)
os << proxy.escape;
if (*it == delim || *it == escape)
os << escape;
os << *it;
}
os << proxy.delim;
os << delim;
return os;
}
// inserter for const std::basic_string& proxies
template <class Char, class Traits, class Alloc>
inline
std::basic_ostream<Char, Traits>& operator<<(std::basic_ostream<Char, Traits>& os,
const quoted_proxy<std::basic_string<Char, Traits, Alloc> const &, Char>& proxy)
{
return basic_string_inserter_imp(os, proxy.string, proxy.escape, proxy.delim);
}
// inserter for non-const std::basic_string& proxies
template <class Char, class Traits, class Alloc>
inline
std::basic_ostream<Char, Traits>& operator<<(std::basic_ostream<Char, Traits>& os,
const quoted_proxy<std::basic_string<Char, Traits, Alloc>&, Char>& proxy)
{
return os <<
*reinterpret_cast<const quoted_proxy<std::basic_string
<Char, Traits, Alloc> const &, Char>*>(&proxy);
return basic_string_inserter_imp(os, proxy.string, proxy.escape, proxy.delim);
}
// inserter for const C-string* proxies
template <class Char, class Traits>
std::basic_ostream<Char, Traits>& operator<<(std::basic_ostream<Char, Traits>& os,
const quoted_proxy<const Char*, Char>& proxy)
@@ -95,6 +113,7 @@ namespace boost
return os;
}
// extractor for non-const std::basic_string& proxies
template <class Char, class Traits, class Alloc>
std::basic_istream<Char, Traits>& operator>>(std::basic_istream<Char, Traits>& is,
const quoted_proxy<std::basic_string<Char, Traits, Alloc>&, Char>& proxy)
@@ -126,8 +145,7 @@ namespace boost
} // namespace detail
// manipulator implementations
// manipulator implementation for const std::basic_string&
template <class Char, class Traits, class Alloc>
inline detail::quoted_proxy<std::basic_string<Char, Traits, Alloc> const &, Char>
quoted(const std::basic_string<Char, Traits, Alloc>& s, Char escape, Char delim)
@@ -136,14 +154,7 @@ namespace boost
(s, escape, delim);
}
template <class Char>
inline detail::quoted_proxy<const Char*, Char>
quoted(const Char* s, Char escape, Char delim)
{
return detail::quoted_proxy<const Char*, Char> (s, escape, delim);
}
// manipulator implementation for non-const std::basic_string&
template <class Char, class Traits, class Alloc>
inline detail::quoted_proxy<std::basic_string<Char, Traits, Alloc> &, Char>
quoted(std::basic_string<Char, Traits, Alloc>& s, Char escape, Char delim)
@@ -152,7 +163,15 @@ namespace boost
(s, escape, delim);
}
// manipulator implementation for const C-string*
template <class Char>
inline detail::quoted_proxy<const Char*, Char>
quoted(const Char* s, Char escape, Char delim)
{
return detail::quoted_proxy<const Char*, Char> (s, escape, delim);
}
} // namespace io
} // namespace boost
#endif // BOOST_QUOTE_MANIP
#endif // BOOST_IO_QUOTED_MANIP