/usr/include/boost/algorithm/string
Edit: /usr/include/boost/algorithm/string/classification.hpp (11642B)
// Boost string_algo library classification.hpp header file ---------------------------//
// Copyright Pavol Droba 2002-2003.
//
// Distributed under the Boost Software License, Version 1.0.
// (See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
// See http://www.boost.org/ for updates, documentation, and revision history.
#ifndef BOOST_STRING_CLASSIFICATION_HPP
#define BOOST_STRING_CLASSIFICATION_HPP
#include
#include
#include
#include
#include
#include
/*! \file
Classification predicates are included in the library to give
some more convenience when using algorithms like \c trim() and \c all().
They wrap functionality of STL classification functions ( e.g. \c std::isspace() )
into generic functors.
*/
namespace boost {
namespace algorithm {
// classification functor generator -------------------------------------//
//! is_classified predicate
/*!
Construct the \c is_classified predicate. This predicate holds if the input is
of specified \c std::ctype category.
\param Type A \c std::ctype category
\param Loc A locale used for classification
\return An instance of the \c is_classified predicate
*/
inline detail::is_classifiedF
is_classified(std::ctype_base::mask Type, const std::locale& Loc=std::locale())
{
return detail::is_classifiedF(Type, Loc);
}
//! is_space predicate
/*!
Construct the \c is_classified predicate for the \c ctype_base::space category.
\param Loc A locale used for classification
\return An instance of the \c is_classified predicate
*/
inline detail::is_classifiedF
is_space(const std::locale& Loc=std::locale())
{
return detail::is_classifiedF(std::ctype_base::space, Loc);
}
//! is_alnum predicate
/*!
Construct the \c is_classified predicate for the \c ctype_base::alnum category.
\param Loc A locale used for classification
\return An instance of the \c is_classified predicate
*/
inline detail::is_classifiedF
is_alnum(const std::locale& Loc=std::locale())
{
return detail::is_classifiedF(std::ctype_base::alnum, Loc);
}
//! is_alpha predicate
/*!
Construct the \c is_classified predicate for the \c ctype_base::alpha category.
\param Loc A locale used for classification
\return An instance of the \c is_classified predicate
*/
inline detail::is_classifiedF
is_alpha(const std::locale& Loc=std::locale())
{
return detail::is_classifiedF(std::ctype_base::alpha, Loc);
}
//! is_cntrl predicate
/*!
Construct the \c is_classified predicate for the \c ctype_base::cntrl category.
\param Loc A locale used for classification
\return An instance of the \c is_classified predicate
*/
inline detail::is_classifiedF
is_cntrl(const std::locale& Loc=std::locale())
{
return detail::is_classifiedF(std::ctype_base::cntrl, Loc);
}
//! is_digit predicate
/*!
Construct the \c is_classified predicate for the \c ctype_base::digit category.
\param Loc A locale used for classification
\return An instance of the \c is_classified predicate
*/
inline detail::is_classifiedF
is_digit(const std::locale& Loc=std::locale())
{
return detail::is_classifiedF(std::ctype_base::digit, Loc);
}
//! is_graph predicate
/*!
Construct the \c is_classified predicate for the \c ctype_base::graph category.
\param Loc A locale used for classification
\return An instance of the \c is_classified predicate
*/
inline detail::is_classifiedF
is_graph(const std::locale& Loc=std::locale())
{
return detail::is_classifiedF(std::ctype_base::graph, Loc);
}
//! is_lower predicate
/*!
Construct the \c is_classified predicate for the \c ctype_base::lower category.
\param Loc A locale used for classification
\return An instance of \c is_classified predicate
*/
inline detail::is_classifiedF
is_lower(const std::locale& Loc=std::locale())
{
return detail::is_classifiedF(std::ctype_base::lower, Loc);
}
//! is_print predicate
/*!
Construct the \c is_classified predicate for the \c ctype_base::print category.
\param Loc A locale used for classification
\return An instance of the \c is_classified predicate
*/
inline detail::is_classifiedF
is_print(const std::locale& Loc=std::locale())
{
return detail::is_classifiedF(std::ctype_base::print, Loc);
}
//! is_punct predicate
/*!
Construct the \c is_classified predicate for the \c ctype_base::punct category.
\param Loc A locale used for classification
\return An instance of the \c is_classified predicate
*/
inline detail::is_classifiedF
is_punct(const std::locale& Loc=std::locale())
{
return detail::is_classifiedF(std::ctype_base::punct, Loc);
}
//! is_upper predicate
/*!
Construct the \c is_classified predicate for the \c ctype_base::upper category.
\param Loc A locale used for classification
\return An instance of the \c is_classified predicate
*/
inline detail::is_classifiedF
is_upper(const std::locale& Loc=std::locale())
{
return detail::is_classifiedF(std::ctype_base::upper, Loc);
}
//! is_xdigit predicate
/*!
Construct the \c is_classified predicate for the \c ctype_base::xdigit category.
\param Loc A locale used for classification
\return An instance of the \c is_classified predicate
*/
inline detail::is_classifiedF
is_xdigit(const std::locale& Loc=std::locale())
{
return detail::is_classifiedF(std::ctype_base::xdigit, Loc);
}
//! is_any_of predicate
/*!
Construct the \c is_any_of predicate. The predicate holds if the input
is included in the specified set of characters.
\param Set A set of characters to be recognized
\return An instance of the \c is_any_of predicate
*/
template
inline detail::is_any_ofF<
BOOST_STRING_TYPENAME range_value::type>
is_any_of( const RangeT& Set )
{
iterator_range::type> lit_set(boost::as_literal(Set));
return detail::is_any_ofF::type>(lit_set);
}
//! is_from_range predicate
/*!
Construct the \c is_from_range predicate. The predicate holds if the input
is included in the specified range. (i.e. From <= Ch <= To )
\param From The start of the range
\param To The end of the range
\return An instance of the \c is_from_range predicate
*/
template
inline detail::is_from_rangeF is_from_range(CharT From, CharT To)
{
return detail::is_from_rangeF(From,To);
}
// predicate combinators ---------------------------------------------------//
//! predicate 'and' composition predicate
/*!
Construct the \c class_and predicate. This predicate can be used
to logically combine two classification predicates. \c class_and holds,
if both predicates return true.
\param Pred1 The first predicate
\param Pred2 The second predicate
\return An instance of the \c class_and predicate
*/
template
inline detail::pred_andF
operator&&(
const predicate_facade& Pred1,
const predicate_facade& Pred2 )
{
// Doing the static_cast with the pointer instead of the reference
// is a workaround for some compilers which have problems with
// static_cast's of template references, i.e. CW8. /grafik/
return detail::pred_andF(
*static_cast(&Pred1),
*static_cast(&Pred2) );
}
//! predicate 'or' composition predicate
/*!
Construct the \c class_or predicate. This predicate can be used
to logically combine two classification predicates. \c class_or holds,
if one of the predicates return true.
\param Pred1 The first predicate
\param Pred2 The second predicate
\return An instance of the \c class_or predicate
*/
template
inline detail::pred_orF
operator||(
const predicate_facade& Pred1,
const predicate_facade& Pred2 )
{
// Doing the static_cast with the pointer instead of the reference
// is a workaround for some compilers which have problems with
// static_cast's of template references, i.e. CW8. /grafik/
return detail::pred_orF(
*static_cast(&Pred1),
*static_cast(&Pred2));
}
//! predicate negation operator
/*!
Construct the \c class_not predicate. This predicate represents a negation.
\c class_or holds if of the predicates return false.
\param Pred The predicate to be negated
\return An instance of the \c class_not predicate
*/
template
inline detail::pred_notF
operator!( const predicate_facade& Pred )
{
// Doing the static_cast with the pointer instead of the reference
// is a workaround for some compilers which have problems with
// static_cast's of template references, i.e. CW8. /grafik/
return detail::pred_notF(*static_cast(&Pred));
}
} // namespace algorithm
// pull names to the boost namespace
using algorithm::is_classified;
using algorithm::is_space;
using algorithm::is_alnum;
using algorithm::is_alpha;
using algorithm::is_cntrl;
using algorithm::is_digit;
using algorithm::is_graph;
using algorithm::is_lower;
using algorithm::is_upper;
using algorithm::is_print;
using algorithm::is_punct;
using algorithm::is_xdigit;
using algorithm::is_any_of;
using algorithm::is_from_range;
} // namespace boost
#endif // BOOST_STRING_PREDICATE_HPP