Suyu/ext-boost
1
0
Fork 0
mirror of https://git.suyu.dev/suyu/ext-boost.git synced 2025-12-25 08:44:40 +01:00
Code Issues Projects Releases Packages Wiki Activity Actions

externals: Update boost to 1.72 and add Boost Context

Browse source
This commit is contained in:
Fernando Sahmkow 2020-02-10 12:31:57 -04:00
parent 5e8300b76a
commit 77abe07b3b
618 changed files with 96299 additions and 14263 deletions
Download patch file Download diff file Expand all files Collapse all files

312
boost/algorithm/string/classification.hpp Normal file
View file

@ -0,0 +1,312 @@
// 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 <algorithm>
#include <locale>
#include <boost/range/value_type.hpp>
#include <boost/range/as_literal.hpp>
#include <boost/algorithm/string/detail/classification.hpp>
#include <boost/algorithm/string/predicate_facade.hpp>
/*! \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<typename RangeT>
inline detail::is_any_ofF<
BOOST_STRING_TYPENAME range_value<RangeT>::type>
is_any_of( const RangeT& Set )
{
iterator_range<BOOST_STRING_TYPENAME range_const_iterator<RangeT>::type> lit_set(boost::as_literal(Set));
return detail::is_any_ofF<BOOST_STRING_TYPENAME range_value<RangeT>::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<typename CharT>
inline detail::is_from_rangeF<CharT> is_from_range(CharT From, CharT To)
{
return detail::is_from_rangeF<CharT>(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<typename Pred1T, typename Pred2T>
inline detail::pred_andF<Pred1T, Pred2T>
operator&&(
const predicate_facade<Pred1T>& Pred1,
const predicate_facade<Pred2T>& 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<Pred1T,Pred2T>(
*static_cast<const Pred1T*>(&Pred1),
*static_cast<const Pred2T*>(&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<typename Pred1T, typename Pred2T>
inline detail::pred_orF<Pred1T, Pred2T>
operator||(
const predicate_facade<Pred1T>& Pred1,
const predicate_facade<Pred2T>& 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<Pred1T,Pred2T>(
*static_cast<const Pred1T*>(&Pred1),
*static_cast<const Pred2T*>(&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<typename PredT>
inline detail::pred_notF<PredT>
operator!( const predicate_facade<PredT>& 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<PredT>(*static_cast<const PredT*>(&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

353
boost/algorithm/string/detail/classification.hpp Normal file
View file

@ -0,0 +1,353 @@
// 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_DETAIL_HPP
#define BOOST_STRING_CLASSIFICATION_DETAIL_HPP
#include <boost/algorithm/string/config.hpp>
#include <algorithm>
#include <functional>
#include <locale>
#include <boost/range/begin.hpp>
#include <boost/range/end.hpp>
#include <boost/algorithm/string/predicate_facade.hpp>
#include <boost/type_traits/remove_const.hpp>
namespace boost {
namespace algorithm {
namespace detail {
// classification functors -----------------------------------------------//
// is_classified functor
struct is_classifiedF :
public predicate_facade<is_classifiedF>
{
// Boost.ResultOf support
typedef bool result_type;
// Constructor from a locale
is_classifiedF(std::ctype_base::mask Type, std::locale const & Loc = std::locale()) :
m_Type(Type), m_Locale(Loc) {}
// Operation
template<typename CharT>
bool operator()( CharT Ch ) const
{
return std::use_facet< std::ctype<CharT> >(m_Locale).is( m_Type, Ch );
}
#if defined(__BORLANDC__) && (__BORLANDC__ >= 0x560) && (__BORLANDC__ <= 0x582) && !defined(_USE_OLD_RW_STL)
template<>
bool operator()( char const Ch ) const
{
return std::use_facet< std::ctype<char> >(m_Locale).is( m_Type, Ch );
}
#endif
private:
std::ctype_base::mask m_Type;
std::locale m_Locale;
};
// is_any_of functor
/*
returns true if the value is from the specified set
*/
template<typename CharT>
struct is_any_ofF :
public predicate_facade<is_any_ofF<CharT> >
{
private:
// set cannot operate on const value-type
typedef typename ::boost::remove_const<CharT>::type set_value_type;
public:
// Boost.ResultOf support
typedef bool result_type;
// Constructor
template<typename RangeT>
is_any_ofF( const RangeT& Range ) : m_Size(0)
{
// Prepare storage
m_Storage.m_dynSet=0;
std::size_t Size=::boost::distance(Range);
m_Size=Size;
set_value_type* Storage=0;
if(use_fixed_storage(m_Size))
{
// Use fixed storage
Storage=&m_Storage.m_fixSet[0];
}
else
{
// Use dynamic storage
m_Storage.m_dynSet=new set_value_type[m_Size];
Storage=m_Storage.m_dynSet;
}
// Use fixed storage
::std::copy(::boost::begin(Range), ::boost::end(Range), Storage);
::std::sort(Storage, Storage+m_Size);
}
// Copy constructor
is_any_ofF(const is_any_ofF& Other) : m_Size(Other.m_Size)
{
// Prepare storage
m_Storage.m_dynSet=0;
const set_value_type* SrcStorage=0;
set_value_type* DestStorage=0;
if(use_fixed_storage(m_Size))
{
// Use fixed storage
DestStorage=&m_Storage.m_fixSet[0];
SrcStorage=&Other.m_Storage.m_fixSet[0];
}
else
{
// Use dynamic storage
m_Storage.m_dynSet=new set_value_type[m_Size];
DestStorage=m_Storage.m_dynSet;
SrcStorage=Other.m_Storage.m_dynSet;
}
// Use fixed storage
::std::memcpy(DestStorage, SrcStorage, sizeof(set_value_type)*m_Size);
}
// Destructor
~is_any_ofF()
{
if(!use_fixed_storage(m_Size) && m_Storage.m_dynSet!=0)
{
delete [] m_Storage.m_dynSet;
}
}
// Assignment
is_any_ofF& operator=(const is_any_ofF& Other)
{
// Handle self assignment
if(this==&Other) return *this;
// Prepare storage
const set_value_type* SrcStorage;
set_value_type* DestStorage;
if(use_fixed_storage(Other.m_Size))
{
// Use fixed storage
DestStorage=&m_Storage.m_fixSet[0];
SrcStorage=&Other.m_Storage.m_fixSet[0];
// Delete old storage if was present
if(!use_fixed_storage(m_Size) && m_Storage.m_dynSet!=0)
{
delete [] m_Storage.m_dynSet;
}
// Set new size
m_Size=Other.m_Size;
}
else
{
// Other uses dynamic storage
SrcStorage=Other.m_Storage.m_dynSet;
// Check what kind of storage are we using right now
if(use_fixed_storage(m_Size))
{
// Using fixed storage, allocate new
set_value_type* pTemp=new set_value_type[Other.m_Size];
DestStorage=pTemp;
m_Storage.m_dynSet=pTemp;
m_Size=Other.m_Size;
}
else
{
// Using dynamic storage, check if can reuse
if(m_Storage.m_dynSet!=0 && m_Size>=Other.m_Size && m_Size<Other.m_Size*2)
{
// Reuse the current storage
DestStorage=m_Storage.m_dynSet;
m_Size=Other.m_Size;
}
else
{
// Allocate the new one
set_value_type* pTemp=new set_value_type[Other.m_Size];
DestStorage=pTemp;
// Delete old storage if necessary
if(m_Storage.m_dynSet!=0)
{
delete [] m_Storage.m_dynSet;
}
// Store the new storage
m_Storage.m_dynSet=pTemp;
// Set new size
m_Size=Other.m_Size;
}
}
}
// Copy the data
::std::memcpy(DestStorage, SrcStorage, sizeof(set_value_type)*m_Size);
return *this;
}
// Operation
template<typename Char2T>
bool operator()( Char2T Ch ) const
{
const set_value_type* Storage=
(use_fixed_storage(m_Size))
? &m_Storage.m_fixSet[0]
: m_Storage.m_dynSet;
return ::std::binary_search(Storage, Storage+m_Size, Ch);
}
private:
// check if the size is eligible for fixed storage
static bool use_fixed_storage(std::size_t size)
{
return size<=sizeof(set_value_type*)*2;
}
private:
// storage
// The actual used storage is selected on the type
union
{
set_value_type* m_dynSet;
set_value_type m_fixSet[sizeof(set_value_type*)*2];
}
m_Storage;
// storage size
::std::size_t m_Size;
};
// is_from_range functor
/*
returns true if the value is from the specified range.
(i.e. x>=From && x>=To)
*/
template<typename CharT>
struct is_from_rangeF :
public predicate_facade< is_from_rangeF<CharT> >
{
// Boost.ResultOf support
typedef bool result_type;
// Constructor
is_from_rangeF( CharT From, CharT To ) : m_From(From), m_To(To) {}
// Operation
template<typename Char2T>
bool operator()( Char2T Ch ) const
{
return ( m_From <= Ch ) && ( Ch <= m_To );
}
private:
CharT m_From;
CharT m_To;
};
// class_and composition predicate
template<typename Pred1T, typename Pred2T>
struct pred_andF :
public predicate_facade< pred_andF<Pred1T,Pred2T> >
{
public:
// Boost.ResultOf support
typedef bool result_type;
// Constructor
pred_andF( Pred1T Pred1, Pred2T Pred2 ) :
m_Pred1(Pred1), m_Pred2(Pred2) {}
// Operation
template<typename CharT>
bool operator()( CharT Ch ) const
{
return m_Pred1(Ch) && m_Pred2(Ch);
}
private:
Pred1T m_Pred1;
Pred2T m_Pred2;
};
// class_or composition predicate
template<typename Pred1T, typename Pred2T>
struct pred_orF :
public predicate_facade< pred_orF<Pred1T,Pred2T> >
{
public:
// Boost.ResultOf support
typedef bool result_type;
// Constructor
pred_orF( Pred1T Pred1, Pred2T Pred2 ) :
m_Pred1(Pred1), m_Pred2(Pred2) {}
// Operation
template<typename CharT>
bool operator()( CharT Ch ) const
{
return m_Pred1(Ch) || m_Pred2(Ch);
}
private:
Pred1T m_Pred1;
Pred2T m_Pred2;
};
// class_not composition predicate
template< typename PredT >
struct pred_notF :
public predicate_facade< pred_notF<PredT> >
{
public:
// Boost.ResultOf support
typedef bool result_type;
// Constructor
pred_notF( PredT Pred ) : m_Pred(Pred) {}
// Operation
template<typename CharT>
bool operator()( CharT Ch ) const
{
return !m_Pred(Ch);
}
private:
PredT m_Pred;
};
} // namespace detail
} // namespace algorithm
} // namespace boost
#endif // BOOST_STRING_CLASSIFICATION_DETAIL_HPP

87
boost/algorithm/string/detail/find_iterator.hpp Normal file
View file

@ -0,0 +1,87 @@
// Boost string_algo library find_iterator.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_FIND_ITERATOR_DETAIL_HPP
#define BOOST_STRING_FIND_ITERATOR_DETAIL_HPP
#include <boost/algorithm/string/config.hpp>
#include <boost/range/iterator_range_core.hpp>
#include <boost/iterator/iterator_facade.hpp>
#include <boost/iterator/iterator_categories.hpp>
#include <boost/function.hpp>
namespace boost {
namespace algorithm {
namespace detail {
// find_iterator base -----------------------------------------------//
// Find iterator base
template<typename IteratorT>
class find_iterator_base
{
protected:
// typedefs
typedef IteratorT input_iterator_type;
typedef iterator_range<IteratorT> match_type;
typedef function2<
match_type,
input_iterator_type,
input_iterator_type> finder_type;
protected:
// Protected construction/destruction
// Default constructor
find_iterator_base() {}
// Copy construction
find_iterator_base( const find_iterator_base& Other ) :
m_Finder(Other.m_Finder) {}
// Constructor
template<typename FinderT>
find_iterator_base( FinderT Finder, int ) :
m_Finder(Finder) {}
// Destructor
~find_iterator_base() {}
// Find operation
match_type do_find(
input_iterator_type Begin,
input_iterator_type End ) const
{
if (!m_Finder.empty())
{
return m_Finder(Begin,End);
}
else
{
return match_type(End,End);
}
}
// Check
bool is_null() const
{
return m_Finder.empty();
}
private:
// Finder
finder_type m_Finder;
};
} // namespace detail
} // namespace algorithm
} // namespace boost
#endif // BOOST_STRING_FIND_ITERATOR_DETAIL_HPP

95
boost/algorithm/string/detail/trim.hpp Normal file
View file

@ -0,0 +1,95 @@
// Boost string_algo library trim.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_TRIM_DETAIL_HPP
#define BOOST_STRING_TRIM_DETAIL_HPP
#include <boost/algorithm/string/config.hpp>
#include <boost/detail/iterator.hpp>
namespace boost {
namespace algorithm {
namespace detail {
// trim iterator helper -----------------------------------------------//
template< typename ForwardIteratorT, typename PredicateT >
inline ForwardIteratorT trim_end_iter_select(
ForwardIteratorT InBegin,
ForwardIteratorT InEnd,
PredicateT IsSpace,
std::forward_iterator_tag )
{
ForwardIteratorT TrimIt=InBegin;
for( ForwardIteratorT It=InBegin; It!=InEnd; ++It )
{
if ( !IsSpace(*It) )
{
TrimIt=It;
++TrimIt;
}
}
return TrimIt;
}
template< typename ForwardIteratorT, typename PredicateT >
inline ForwardIteratorT trim_end_iter_select(
ForwardIteratorT InBegin,
ForwardIteratorT InEnd,
PredicateT IsSpace,
std::bidirectional_iterator_tag )
{
for( ForwardIteratorT It=InEnd; It!=InBegin; )
{
if ( !IsSpace(*(--It)) )
return ++It;
}
return InBegin;
}
// Search for first non matching character from the beginning of the sequence
template< typename ForwardIteratorT, typename PredicateT >
inline ForwardIteratorT trim_begin(
ForwardIteratorT InBegin,
ForwardIteratorT InEnd,
PredicateT IsSpace )
{
ForwardIteratorT It=InBegin;
for(; It!=InEnd; ++It )
{
if (!IsSpace(*It))
return It;
}
return It;
}
// Search for first non matching character from the end of the sequence
template< typename ForwardIteratorT, typename PredicateT >
inline ForwardIteratorT trim_end(
ForwardIteratorT InBegin,
ForwardIteratorT InEnd,
PredicateT IsSpace )
{
typedef BOOST_STRING_TYPENAME boost::detail::
iterator_traits<ForwardIteratorT>::iterator_category category;
return ::boost::algorithm::detail::trim_end_iter_select( InBegin, InEnd, IsSpace, category() );
}
} // namespace detail
} // namespace algorithm
} // namespace boost
#endif // BOOST_STRING_TRIM_DETAIL_HPP

388
boost/algorithm/string/find_iterator.hpp Normal file
View file

@ -0,0 +1,388 @@
// Boost string_algo library find_iterator.hpp header file ---------------------------//
// Copyright Pavol Droba 2002-2004.
//
// 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_FIND_ITERATOR_HPP
#define BOOST_STRING_FIND_ITERATOR_HPP
#include <boost/algorithm/string/config.hpp>
#include <boost/iterator/iterator_facade.hpp>
#include <boost/iterator/iterator_categories.hpp>
#include <boost/range/iterator_range_core.hpp>
#include <boost/range/begin.hpp>
#include <boost/range/end.hpp>
#include <boost/range/iterator.hpp>
#include <boost/range/as_literal.hpp>
#include <boost/algorithm/string/detail/find_iterator.hpp>
/*! \file
Defines find iterator classes. Find iterator repeatedly applies a Finder
to the specified input string to search for matches. Dereferencing
the iterator yields the current match or a range between the last and the current
match depending on the iterator used.
*/
namespace boost {
namespace algorithm {
// find_iterator -----------------------------------------------//
//! find_iterator
/*!
Find iterator encapsulates a Finder and allows
for incremental searching in a string.
Each increment moves the iterator to the next match.
Find iterator is a readable forward traversal iterator.
Dereferencing the iterator yields an iterator_range delimiting
the current match.
*/
template<typename IteratorT>
class find_iterator :
public iterator_facade<
find_iterator<IteratorT>,
const iterator_range<IteratorT>,
forward_traversal_tag >,
private detail::find_iterator_base<IteratorT>
{
private:
// facade support
friend class ::boost::iterator_core_access;
private:
// typedefs
typedef detail::find_iterator_base<IteratorT> base_type;
typedef BOOST_STRING_TYPENAME
base_type::input_iterator_type input_iterator_type;
typedef BOOST_STRING_TYPENAME
base_type::match_type match_type;
public:
//! Default constructor
/*!
Construct null iterator. All null iterators are equal.
\post eof()==true
*/
find_iterator() {}
//! Copy constructor
/*!
Construct a copy of the find_iterator
*/
find_iterator( const find_iterator& Other ) :
base_type(Other),
m_Match(Other.m_Match),
m_End(Other.m_End) {}
//! Constructor
/*!
Construct new find_iterator for a given finder
and a range.
*/
template<typename FinderT>
find_iterator(
IteratorT Begin,
IteratorT End,
FinderT Finder ) :
detail::find_iterator_base<IteratorT>(Finder,0),
m_Match(Begin,Begin),
m_End(End)
{
increment();
}
//! Constructor
/*!
Construct new find_iterator for a given finder
and a range.
*/
template<typename FinderT, typename RangeT>
find_iterator(
RangeT& Col,
FinderT Finder ) :
detail::find_iterator_base<IteratorT>(Finder,0)
{
iterator_range<BOOST_STRING_TYPENAME range_iterator<RangeT>::type> lit_col(::boost::as_literal(Col));
m_Match=::boost::make_iterator_range(::boost::begin(lit_col), ::boost::begin(lit_col));
m_End=::boost::end(lit_col);
increment();
}
private:
// iterator operations
// dereference
const match_type& dereference() const
{
return m_Match;
}
// increment
void increment()
{
m_Match=this->do_find(m_Match.end(),m_End);
}
// comparison
bool equal( const find_iterator& Other ) const
{
bool bEof=eof();
bool bOtherEof=Other.eof();
return bEof || bOtherEof ? bEof==bOtherEof :
(
m_Match==Other.m_Match &&
m_End==Other.m_End
);
}
public:
// operations
//! Eof check
/*!
Check the eof condition. Eof condition means that
there is nothing more to be searched i.e. find_iterator
is after the last match.
*/
bool eof() const
{
return
this->is_null() ||
(
m_Match.begin() == m_End &&
m_Match.end() == m_End
);
}
private:
// Attributes
match_type m_Match;
input_iterator_type m_End;
};
//! find iterator construction helper
/*!
* Construct a find iterator to iterate through the specified string
*/
template<typename RangeT, typename FinderT>
inline find_iterator<
BOOST_STRING_TYPENAME range_iterator<RangeT>::type>
make_find_iterator(
RangeT& Collection,
FinderT Finder)
{
return find_iterator<BOOST_STRING_TYPENAME range_iterator<RangeT>::type>(
Collection, Finder);
}
// split iterator -----------------------------------------------//
//! split_iterator
/*!
Split iterator encapsulates a Finder and allows
for incremental searching in a string.
Unlike the find iterator, split iterator iterates
through gaps between matches.
Find iterator is a readable forward traversal iterator.
Dereferencing the iterator yields an iterator_range delimiting
the current match.
*/
template<typename IteratorT>
class split_iterator :
public iterator_facade<
split_iterator<IteratorT>,
const iterator_range<IteratorT>,
forward_traversal_tag >,
private detail::find_iterator_base<IteratorT>
{
private:
// facade support
friend class ::boost::iterator_core_access;
private:
// typedefs
typedef detail::find_iterator_base<IteratorT> base_type;
typedef BOOST_STRING_TYPENAME
base_type::input_iterator_type input_iterator_type;
typedef BOOST_STRING_TYPENAME
base_type::match_type match_type;
public:
//! Default constructor
/*!
Construct null iterator. All null iterators are equal.
\post eof()==true
*/
split_iterator() :
m_Next(),
m_End(),
m_bEof(true)
{}
//! Copy constructor
/*!
Construct a copy of the split_iterator
*/
split_iterator( const split_iterator& Other ) :
base_type(Other),
m_Match(Other.m_Match),
m_Next(Other.m_Next),
m_End(Other.m_End),
m_bEof(Other.m_bEof)
{}
//! Constructor
/*!
Construct new split_iterator for a given finder
and a range.
*/
template<typename FinderT>
split_iterator(
IteratorT Begin,
IteratorT End,
FinderT Finder ) :
detail::find_iterator_base<IteratorT>(Finder,0),
m_Match(Begin,Begin),
m_Next(Begin),
m_End(End),
m_bEof(false)
{
// force the correct behavior for empty sequences and yield at least one token
if(Begin!=End)
{
increment();
}
}
//! Constructor
/*!
Construct new split_iterator for a given finder
and a collection.
*/
template<typename FinderT, typename RangeT>
split_iterator(
RangeT& Col,
FinderT Finder ) :
detail::find_iterator_base<IteratorT>(Finder,0),
m_bEof(false)
{
iterator_range<BOOST_STRING_TYPENAME range_iterator<RangeT>::type> lit_col(::boost::as_literal(Col));
m_Match=make_iterator_range(::boost::begin(lit_col), ::boost::begin(lit_col));
m_Next=::boost::begin(lit_col);
m_End=::boost::end(lit_col);
// force the correct behavior for empty sequences and yield at least one token
if(m_Next!=m_End)
{
increment();
}
}
private:
// iterator operations
// dereference
const match_type& dereference() const
{
return m_Match;
}
// increment
void increment()
{
match_type FindMatch=this->do_find( m_Next, m_End );
if(FindMatch.begin()==m_End && FindMatch.end()==m_End)
{
if(m_Match.end()==m_End)
{
// Mark iterator as eof
m_bEof=true;
}
}
m_Match=match_type( m_Next, FindMatch.begin() );
m_Next=FindMatch.end();
}
// comparison
bool equal( const split_iterator& Other ) const
{
bool bEof=eof();
bool bOtherEof=Other.eof();
return bEof || bOtherEof ? bEof==bOtherEof :
(
m_Match==Other.m_Match &&
m_Next==Other.m_Next &&
m_End==Other.m_End
);
}
public:
// operations
//! Eof check
/*!
Check the eof condition. Eof condition means that
there is nothing more to be searched i.e. find_iterator
is after the last match.
*/
bool eof() const
{
return this->is_null() || m_bEof;
}
private:
// Attributes
match_type m_Match;
input_iterator_type m_Next;
input_iterator_type m_End;
bool m_bEof;
};
//! split iterator construction helper
/*!
* Construct a split iterator to iterate through the specified collection
*/
template<typename RangeT, typename FinderT>
inline split_iterator<
BOOST_STRING_TYPENAME range_iterator<RangeT>::type>
make_split_iterator(
RangeT& Collection,
FinderT Finder)
{
return split_iterator<BOOST_STRING_TYPENAME range_iterator<RangeT>::type>(
Collection, Finder);
}
} // namespace algorithm
// pull names to the boost namespace
using algorithm::find_iterator;
using algorithm::make_find_iterator;
using algorithm::split_iterator;
using algorithm::make_split_iterator;
} // namespace boost
#endif // BOOST_STRING_FIND_ITERATOR_HPP

201
boost/algorithm/string/iter_find.hpp Normal file
View file

@ -0,0 +1,201 @@
// Boost string_algo library iter_find.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_ITER_FIND_HPP
#define BOOST_STRING_ITER_FIND_HPP
#include <boost/algorithm/string/config.hpp>
#include <algorithm>
#include <iterator>
#include <boost/iterator/transform_iterator.hpp>
#include <boost/range/iterator_range_core.hpp>
#include <boost/range/begin.hpp>
#include <boost/range/end.hpp>
#include <boost/range/iterator.hpp>
#include <boost/range/value_type.hpp>
#include <boost/range/as_literal.hpp>
#include <boost/algorithm/string/concept.hpp>
#include <boost/algorithm/string/find_iterator.hpp>
#include <boost/algorithm/string/detail/util.hpp>
/*! \file
Defines generic split algorithms. Split algorithms can be
used to divide a sequence into several part according
to a given criteria. Result is given as a 'container
of containers' where elements are copies or references
to extracted parts.
There are two algorithms provided. One iterates over matching
substrings, the other one over the gaps between these matches.
*/
namespace boost {
namespace algorithm {
// iterate find ---------------------------------------------------//
//! Iter find algorithm
/*!
This algorithm executes a given finder in iteration on the input,
until the end of input is reached, or no match is found.
Iteration is done using built-in find_iterator, so the real
searching is performed only when needed.
In each iteration new match is found and added to the result.
\param Result A 'container container' to contain the result of search.
Both outer and inner container must have constructor taking a pair
of iterators as an argument.
Typical type of the result is
\c std::vector<boost::iterator_range<iterator>>
(each element of such a vector will container a range delimiting
a match).
\param Input A container which will be searched.
\param Finder A Finder object used for searching
\return A reference to the result
\note Prior content of the result will be overwritten.
*/
template<
typename SequenceSequenceT,
typename RangeT,
typename FinderT >
inline SequenceSequenceT&
iter_find(
SequenceSequenceT& Result,
#if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
RangeT&& Input,
#else
RangeT& Input,
#endif
FinderT Finder )
{
BOOST_CONCEPT_ASSERT((
FinderConcept<
FinderT,
BOOST_STRING_TYPENAME range_iterator<RangeT>::type>
));
iterator_range<BOOST_STRING_TYPENAME range_iterator<RangeT>::type> lit_input(::boost::as_literal(Input));
typedef BOOST_STRING_TYPENAME
range_iterator<RangeT>::type input_iterator_type;
typedef find_iterator<input_iterator_type> find_iterator_type;
typedef detail::copy_iterator_rangeF<
BOOST_STRING_TYPENAME
range_value<SequenceSequenceT>::type,
input_iterator_type> copy_range_type;
input_iterator_type InputEnd=::boost::end(lit_input);
typedef transform_iterator<copy_range_type, find_iterator_type>
transform_iter_type;
transform_iter_type itBegin=
::boost::make_transform_iterator(
find_iterator_type( ::boost::begin(lit_input), InputEnd, Finder ),
copy_range_type());
transform_iter_type itEnd=
::boost::make_transform_iterator(
find_iterator_type(),
copy_range_type());
SequenceSequenceT Tmp(itBegin, itEnd);
Result.swap(Tmp);
return Result;
}
// iterate split ---------------------------------------------------//
//! Split find algorithm
/*!
This algorithm executes a given finder in iteration on the input,
until the end of input is reached, or no match is found.
Iteration is done using built-in find_iterator, so the real
searching is performed only when needed.
Each match is used as a separator of segments. These segments are then
returned in the result.
\param Result A 'container container' to contain the result of search.
Both outer and inner container must have constructor taking a pair
of iterators as an argument.
Typical type of the result is
\c std::vector<boost::iterator_range<iterator>>
(each element of such a vector will container a range delimiting
a match).
\param Input A container which will be searched.
\param Finder A finder object used for searching
\return A reference to the result
\note Prior content of the result will be overwritten.
*/
template<
typename SequenceSequenceT,
typename RangeT,
typename FinderT >
inline SequenceSequenceT&
iter_split(
SequenceSequenceT& Result,
#if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
RangeT&& Input,
#else
RangeT& Input,
#endif
FinderT Finder )
{
BOOST_CONCEPT_ASSERT((
FinderConcept<FinderT,
BOOST_STRING_TYPENAME range_iterator<RangeT>::type>
));
iterator_range<BOOST_STRING_TYPENAME range_iterator<RangeT>::type> lit_input(::boost::as_literal(Input));
typedef BOOST_STRING_TYPENAME
range_iterator<RangeT>::type input_iterator_type;
typedef split_iterator<input_iterator_type> find_iterator_type;
typedef detail::copy_iterator_rangeF<
BOOST_STRING_TYPENAME
range_value<SequenceSequenceT>::type,
input_iterator_type> copy_range_type;
input_iterator_type InputEnd=::boost::end(lit_input);
typedef transform_iterator<copy_range_type, find_iterator_type>
transform_iter_type;
transform_iter_type itBegin=
::boost::make_transform_iterator(
find_iterator_type( ::boost::begin(lit_input), InputEnd, Finder ),
copy_range_type() );
transform_iter_type itEnd=
::boost::make_transform_iterator(
find_iterator_type(),
copy_range_type() );
SequenceSequenceT Tmp(itBegin, itEnd);
Result.swap(Tmp);
return Result;
}
} // namespace algorithm
// pull names to the boost namespace
using algorithm::iter_find;
using algorithm::iter_split;
} // namespace boost
#endif // BOOST_STRING_ITER_FIND_HPP

42
boost/algorithm/string/predicate_facade.hpp Normal file
View file

@ -0,0 +1,42 @@
// Boost string_algo library predicate_facade.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_PREDICATE_FACADE_HPP
#define BOOST_STRING_PREDICATE_FACADE_HPP
#include <boost/algorithm/string/config.hpp>
/*
\file boost/algorith/string/predicate_facade.hpp
This file contains predicate_facade definition. This template class is used
to identify classification predicates, so they can be combined using
composition operators.
*/
namespace boost {
namespace algorithm {
// predicate facade ------------------------------------------------------//
//! Predicate facade
/*!
This class allows to recognize classification
predicates, so that they can be combined using
composition operators.
Every classification predicate must be derived from this class.
*/
template<typename Derived>
struct predicate_facade {};
} // namespace algorithm
} // namespace boost
#endif // BOOST_STRING_CLASSIFICATION_DETAIL_HPP

175
boost/algorithm/string/split.hpp Normal file
View file

@ -0,0 +1,175 @@
// Boost string_algo library split.hpp header file ---------------------------//
// Copyright Pavol Droba 2002-2006.
//
// 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_SPLIT_HPP
#define BOOST_STRING_SPLIT_HPP
#include <boost/algorithm/string/config.hpp>
#include <boost/algorithm/string/iter_find.hpp>
#include <boost/algorithm/string/finder.hpp>
#include <boost/algorithm/string/compare.hpp>
/*! \file
Defines basic split algorithms.
Split algorithms can be used to divide a string
into several parts according to given criteria.
Each part is copied and added as a new element to the
output container.
Thus the result container must be able to hold copies
of the matches (in a compatible structure like std::string) or
a reference to it (e.g. using the iterator range class).
Examples of such a container are \c std::vector<std::string>
or \c std::list<boost::iterator_range<std::string::iterator>>
*/
namespace boost {
namespace algorithm {
// find_all ------------------------------------------------------------//
//! Find all algorithm
/*!
This algorithm finds all occurrences of the search string
in the input.
Each part is copied and added as a new element to the
output container.
Thus the result container must be able to hold copies
of the matches (in a compatible structure like std::string) or
a reference to it (e.g. using the iterator range class).
Examples of such a container are \c std::vector<std::string>
or \c std::list<boost::iterator_range<std::string::iterator>>
\param Result A container that can hold copies of references to the substrings
\param Input A container which will be searched.
\param Search A substring to be searched for.
\return A reference the result
\note Prior content of the result will be overwritten.
\note This function provides the strong exception-safety guarantee
*/
template< typename SequenceSequenceT, typename Range1T, typename Range2T >
inline SequenceSequenceT& find_all(
SequenceSequenceT& Result,
#if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
Range1T&& Input,
#else
Range1T& Input,
#endif
const Range2T& Search)
{
return ::boost::algorithm::iter_find(
Result,
Input,
::boost::algorithm::first_finder(Search) );
}
//! Find all algorithm ( case insensitive )
/*!
This algorithm finds all occurrences of the search string
in the input.
Each part is copied and added as a new element to the
output container. Thus the result container must be able to hold copies
of the matches (in a compatible structure like std::string) or
a reference to it (e.g. using the iterator range class).
Examples of such a container are \c std::vector<std::string>
or \c std::list<boost::iterator_range<std::string::iterator>>
Searching is case insensitive.
\param Result A container that can hold copies of references to the substrings
\param Input A container which will be searched.
\param Search A substring to be searched for.
\param Loc A locale used for case insensitive comparison
\return A reference the result
\note Prior content of the result will be overwritten.
\note This function provides the strong exception-safety guarantee
*/
template< typename SequenceSequenceT, typename Range1T, typename Range2T >
inline SequenceSequenceT& ifind_all(
SequenceSequenceT& Result,
#if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
Range1T&& Input,
#else
Range1T& Input,
#endif
const Range2T& Search,
const std::locale& Loc=std::locale() )
{
return ::boost::algorithm::iter_find(
Result,
Input,
::boost::algorithm::first_finder(Search, is_iequal(Loc) ) );
}
// tokenize -------------------------------------------------------------//
//! Split algorithm
/*!
Tokenize expression. This function is equivalent to C strtok. Input
sequence is split into tokens, separated by separators. Separators
are given by means of the predicate.
Each part is copied and added as a new element to the
output container.
Thus the result container must be able to hold copies
of the matches (in a compatible structure like std::string) or
a reference to it (e.g. using the iterator range class).
Examples of such a container are \c std::vector<std::string>
or \c std::list<boost::iterator_range<std::string::iterator>>
\param Result A container that can hold copies of references to the substrings
\param Input A container which will be searched.
\param Pred A predicate to identify separators. This predicate is
supposed to return true if a given element is a separator.
\param eCompress If eCompress argument is set to token_compress_on, adjacent
separators are merged together. Otherwise, every two separators
delimit a token.
\return A reference the result
\note Prior content of the result will be overwritten.
\note This function provides the strong exception-safety guarantee
*/
template< typename SequenceSequenceT, typename RangeT, typename PredicateT >
inline SequenceSequenceT& split(
SequenceSequenceT& Result,
#if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
RangeT&& Input,
#else
RangeT& Input,
#endif
PredicateT Pred,
token_compress_mode_type eCompress=token_compress_off )
{
return ::boost::algorithm::iter_split(
Result,
Input,
::boost::algorithm::token_finder( Pred, eCompress ) );
}
} // namespace algorithm
// pull names to the boost namespace
using algorithm::find_all;
using algorithm::ifind_all;
using algorithm::split;
} // namespace boost
#endif // BOOST_STRING_SPLIT_HPP

398
boost/algorithm/string/trim.hpp Normal file
View file

@ -0,0 +1,398 @@
// Boost string_algo library trim.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_TRIM_HPP
#define BOOST_STRING_TRIM_HPP
#include <boost/algorithm/string/config.hpp>
#include <boost/range/begin.hpp>
#include <boost/range/end.hpp>
#include <boost/range/const_iterator.hpp>
#include <boost/range/as_literal.hpp>
#include <boost/range/iterator_range_core.hpp>
#include <boost/algorithm/string/detail/trim.hpp>
#include <boost/algorithm/string/classification.hpp>
#include <locale>
/*! \file
Defines trim algorithms.
Trim algorithms are used to remove trailing and leading spaces from a
sequence (string). Space is recognized using given locales.
Parametric (\c _if) variants use a predicate (functor) to select which characters
are to be trimmed..
Functions take a selection predicate as a parameter, which is used to determine
whether a character is a space. Common predicates are provided in classification.hpp header.
*/
namespace boost {
namespace algorithm {
// left trim -----------------------------------------------//
//! Left trim - parametric
/*!
Remove all leading spaces from the input.
The supplied predicate is used to determine which characters are considered spaces.
The result is a trimmed copy of the input. It is returned as a sequence
or copied to the output iterator
\param Output An output iterator to which the result will be copied
\param Input An input range
\param IsSpace A unary predicate identifying spaces
\return
An output iterator pointing just after the last inserted character or
a copy of the input
\note The second variant of this function provides the strong exception-safety guarantee
*/
template<typename OutputIteratorT, typename RangeT, typename PredicateT>
inline OutputIteratorT trim_left_copy_if(
OutputIteratorT Output,
const RangeT& Input,
PredicateT IsSpace)
{
iterator_range<BOOST_STRING_TYPENAME range_const_iterator<RangeT>::type> lit_range(::boost::as_literal(Input));
std::copy(
::boost::algorithm::detail::trim_begin(
::boost::begin(lit_range),
::boost::end(lit_range),
IsSpace ),
::boost::end(lit_range),
Output);
return Output;
}
//! Left trim - parametric
/*!
\overload
*/
template<typename SequenceT, typename PredicateT>
inline SequenceT trim_left_copy_if(const SequenceT& Input, PredicateT IsSpace)
{
return SequenceT(
::boost::algorithm::detail::trim_begin(
::boost::begin(Input),
::boost::end(Input),
IsSpace ),
::boost::end(Input));
}
//! Left trim - parametric
/*!
Remove all leading spaces from the input.
The result is a trimmed copy of the input.
\param Input An input sequence
\param Loc a locale used for 'space' classification
\return A trimmed copy of the input
\note This function provides the strong exception-safety guarantee
*/
template<typename SequenceT>
inline SequenceT trim_left_copy(const SequenceT& Input, const std::locale& Loc=std::locale())
{
return
::boost::algorithm::trim_left_copy_if(
Input,
is_space(Loc));
}
//! Left trim
/*!
Remove all leading spaces from the input. The supplied predicate is
used to determine which characters are considered spaces.
The input sequence is modified in-place.
\param Input An input sequence
\param IsSpace A unary predicate identifying spaces
*/
template<typename SequenceT, typename PredicateT>
inline void trim_left_if(SequenceT& Input, PredicateT IsSpace)
{
Input.erase(
::boost::begin(Input),
::boost::algorithm::detail::trim_begin(
::boost::begin(Input),
::boost::end(Input),
IsSpace));
}
//! Left trim
/*!
Remove all leading spaces from the input.
The Input sequence is modified in-place.
\param Input An input sequence
\param Loc A locale used for 'space' classification
*/
template<typename SequenceT>
inline void trim_left(SequenceT& Input, const std::locale& Loc=std::locale())
{
::boost::algorithm::trim_left_if(
Input,
is_space(Loc));
}
// right trim -----------------------------------------------//
//! Right trim - parametric
/*!
Remove all trailing spaces from the input.
The supplied predicate is used to determine which characters are considered spaces.
The result is a trimmed copy of the input. It is returned as a sequence
or copied to the output iterator
\param Output An output iterator to which the result will be copied
\param Input An input range
\param IsSpace A unary predicate identifying spaces
\return
An output iterator pointing just after the last inserted character or
a copy of the input
\note The second variant of this function provides the strong exception-safety guarantee
*/
template<typename OutputIteratorT, typename RangeT, typename PredicateT>
inline OutputIteratorT trim_right_copy_if(
OutputIteratorT Output,
const RangeT& Input,
PredicateT IsSpace )
{
iterator_range<BOOST_STRING_TYPENAME range_const_iterator<RangeT>::type> lit_range(::boost::as_literal(Input));
std::copy(
::boost::begin(lit_range),
::boost::algorithm::detail::trim_end(
::boost::begin(lit_range),
::boost::end(lit_range),
IsSpace ),
Output );
return Output;
}
//! Right trim - parametric
/*!
\overload
*/
template<typename SequenceT, typename PredicateT>
inline SequenceT trim_right_copy_if(const SequenceT& Input, PredicateT IsSpace)
{
return SequenceT(
::boost::begin(Input),
::boost::algorithm::detail::trim_end(
::boost::begin(Input),
::boost::end(Input),
IsSpace)
);
}
//! Right trim
/*!
Remove all trailing spaces from the input.
The result is a trimmed copy of the input
\param Input An input sequence
\param Loc A locale used for 'space' classification
\return A trimmed copy of the input
\note This function provides the strong exception-safety guarantee
*/
template<typename SequenceT>
inline SequenceT trim_right_copy(const SequenceT& Input, const std::locale& Loc=std::locale())
{
return
::boost::algorithm::trim_right_copy_if(
Input,
is_space(Loc));
}
//! Right trim - parametric
/*!
Remove all trailing spaces from the input.
The supplied predicate is used to determine which characters are considered spaces.
The input sequence is modified in-place.
\param Input An input sequence
\param IsSpace A unary predicate identifying spaces
*/
template<typename SequenceT, typename PredicateT>
inline void trim_right_if(SequenceT& Input, PredicateT IsSpace)
{
Input.erase(
::boost::algorithm::detail::trim_end(
::boost::begin(Input),
::boost::end(Input),
IsSpace ),
::boost::end(Input)
);
}
//! Right trim
/*!
Remove all trailing spaces from the input.
The input sequence is modified in-place.
\param Input An input sequence
\param Loc A locale used for 'space' classification
*/
template<typename SequenceT>
inline void trim_right(SequenceT& Input, const std::locale& Loc=std::locale())
{
::boost::algorithm::trim_right_if(
Input,
is_space(Loc) );
}
// both side trim -----------------------------------------------//
//! Trim - parametric
/*!
Remove all trailing and leading spaces from the input.
The supplied predicate is used to determine which characters are considered spaces.
The result is a trimmed copy of the input. It is returned as a sequence
or copied to the output iterator
\param Output An output iterator to which the result will be copied
\param Input An input range
\param IsSpace A unary predicate identifying spaces
\return
An output iterator pointing just after the last inserted character or
a copy of the input
\note The second variant of this function provides the strong exception-safety guarantee
*/
template<typename OutputIteratorT, typename RangeT, typename PredicateT>
inline OutputIteratorT trim_copy_if(
OutputIteratorT Output,
const RangeT& Input,
PredicateT IsSpace)
{
iterator_range<BOOST_STRING_TYPENAME range_const_iterator<RangeT>::type> lit_range(::boost::as_literal(Input));
BOOST_STRING_TYPENAME
range_const_iterator<RangeT>::type TrimEnd=
::boost::algorithm::detail::trim_end(
::boost::begin(lit_range),
::boost::end(lit_range),
IsSpace);
std::copy(
detail::trim_begin(
::boost::begin(lit_range), TrimEnd, IsSpace),
TrimEnd,
Output
);
return Output;
}
//! Trim - parametric
/*!
\overload
*/
template<typename SequenceT, typename PredicateT>
inline SequenceT trim_copy_if(const SequenceT& Input, PredicateT IsSpace)
{
BOOST_STRING_TYPENAME
range_const_iterator<SequenceT>::type TrimEnd=
::boost::algorithm::detail::trim_end(
::boost::begin(Input),
::boost::end(Input),
IsSpace);
return SequenceT(
detail::trim_begin(
::boost::begin(Input),
TrimEnd,
IsSpace),
TrimEnd
);
}
//! Trim
/*!
Remove all leading and trailing spaces from the input.
The result is a trimmed copy of the input
\param Input An input sequence
\param Loc A locale used for 'space' classification
\return A trimmed copy of the input
\note This function provides the strong exception-safety guarantee
*/
template<typename SequenceT>
inline SequenceT trim_copy( const SequenceT& Input, const std::locale& Loc=std::locale() )
{
return
::boost::algorithm::trim_copy_if(
Input,
is_space(Loc) );
}
//! Trim
/*!
Remove all leading and trailing spaces from the input.
The supplied predicate is used to determine which characters are considered spaces.
The input sequence is modified in-place.
\param Input An input sequence
\param IsSpace A unary predicate identifying spaces
*/
template<typename SequenceT, typename PredicateT>
inline void trim_if(SequenceT& Input, PredicateT IsSpace)
{
::boost::algorithm::trim_right_if( Input, IsSpace );
::boost::algorithm::trim_left_if( Input, IsSpace );
}
//! Trim
/*!
Remove all leading and trailing spaces from the input.
The input sequence is modified in-place.
\param Input An input sequence
\param Loc A locale used for 'space' classification
*/
template<typename SequenceT>
inline void trim(SequenceT& Input, const std::locale& Loc=std::locale())
{
::boost::algorithm::trim_if(
Input,
is_space( Loc ) );
}
} // namespace algorithm
// pull names to the boost namespace
using algorithm::trim_left;
using algorithm::trim_left_if;
using algorithm::trim_left_copy;
using algorithm::trim_left_copy_if;
using algorithm::trim_right;
using algorithm::trim_right_if;
using algorithm::trim_right_copy;
using algorithm::trim_right_copy_if;
using algorithm::trim;
using algorithm::trim_if;
using algorithm::trim_copy;
using algorithm::trim_copy_if;
} // namespace boost
#endif // BOOST_STRING_TRIM_HPP