stub regex_traits for non-char data More...

#include <xpressive_fwd.hpp>

Public Types
typedef Elem	char_type

typedef std::vector< char_type >	string_type

typedef detail::not_a_locale	locale_type

typedef int	char_class_type

typedef regex_traits_version_1_tag	version_tag

Public Member Functions
	null_regex_traits (locale_type=locale_type())
	Initialize a null_regex_traits object. More...

bool	operator== (null_regex_traits< char_type > const &that) const
	Checks two null_regex_traits objects for equality. More...

bool	operator!= (null_regex_traits< char_type > const &that) const
	Checks two null_regex_traits objects for inequality. More...

char_type	widen (char ch) const
	Convert a char to a Elem. More...

Static Public Member Functions
static unsigned char	hash (char_type ch)
	Returns a hash value for a Elem in the range [0, UCHAR_MAX]. More...

static char_type	translate (char_type ch)
	No-op. More...

static char_type	translate_nocase (char_type ch)
	No-op. More...

static bool	in_range (char_type first, char_type last, char_type ch)
	Checks to see if a character is within a character range. More...

static bool	in_range_nocase (char_type first, char_type last, char_type ch)
	Checks to see if a character is within a character range. More...

template<typename FwdIter >
static string_type	transform (FwdIter begin, FwdIter end)
	Returns a sort key for the character sequence designated by the iterator range [F1, F2) such that if the character sequence [G1, G2) sorts before the character sequence [H1, H2) then v.transform(G1, G2) < v.transform(H1, H2). More...

template<typename FwdIter >
static string_type	transform_primary (FwdIter begin, FwdIter end)
	Returns a sort key for the character sequence designated by the iterator range [F1, F2) such that if the character sequence [G1, G2) sorts before the character sequence [H1, H2) when character case is not considered then v.transform_primary(G1, G2) < v.transform_primary(H1, H2). More...

template<typename FwdIter >
static string_type	lookup_collatename (FwdIter begin, FwdIter end)
	Returns a sequence of characters that represents the collating element consisting of the character sequence designated by the iterator range [F1, F2). More...

template<typename FwdIter >
static char_class_type	lookup_classname (FwdIter begin, FwdIter end, bool icase)
	The null_regex_traits does not have character classifications, so lookup_classname() is unused. More...

static bool	isctype (char_type ch, char_class_type mask)
	The null_regex_traits does not have character classifications, so isctype() is unused. More...

static int	value (char_type ch, int radix)
	The null_regex_traits recognizes no elements as digits, so value() is unused. More...

static locale_type	imbue (locale_type loc)
	Not used. More...

static locale_type	getloc ()
	Returns locale_type(). More...

Detailed Description

template<typename Elem>
struct boost::xpressive::null_regex_traits< Elem >

stub regex_traits for non-char data

Member Typedef Documentation

template<typename Elem>

typedef int boost::xpressive::null_regex_traits< Elem >::char_class_type

template<typename Elem>

typedef Elem boost::xpressive::null_regex_traits< Elem >::char_type

template<typename Elem>

typedef detail::not_a_locale boost::xpressive::null_regex_traits< Elem >::locale_type

template<typename Elem>

typedef std::vector<char_type> boost::xpressive::null_regex_traits< Elem >::string_type

template<typename Elem>

typedef regex_traits_version_1_tag boost::xpressive::null_regex_traits< Elem >::version_tag

Constructor & Destructor Documentation

template<typename Elem>

boost::xpressive::null_regex_traits< Elem >::null_regex_traits ( locale_type = locale_type() )

inline

Initialize a null_regex_traits object.

Member Function Documentation

template<typename Elem>

static locale_type boost::xpressive::null_regex_traits< Elem >::getloc ( )

inlinestatic

Returns locale_type().

Returns: locale_type()

template<typename Elem>

static unsigned char boost::xpressive::null_regex_traits< Elem >::hash ( char_type ch )

inlinestatic

Returns a hash value for a Elem in the range [0, UCHAR_MAX].

Parameters

ch	The source character.

Returns: a value between 0 and UCHAR_MAX, inclusive.

template<typename Elem>

static locale_type boost::xpressive::null_regex_traits< Elem >::imbue ( locale_type loc )

inlinestatic

Not used.

Parameters

loc not used

Returns: loc

template<typename Elem>

static bool boost::xpressive::null_regex_traits< Elem >::in_range	(	char_type	first,
		char_type	last,
		char_type	ch
	)

inlinestatic

Checks to see if a character is within a character range.

Parameters

first	The bottom of the range, inclusive.
last	The top of the range, inclusive.
ch	The source character.

Returns: first <= ch && ch <= last.

References boost::last.

template<typename Elem>

static bool boost::xpressive::null_regex_traits< Elem >::in_range_nocase	(	char_type	first,
		char_type	last,
		char_type	ch
	)

inlinestatic

Checks to see if a character is within a character range.

Parameters

first	The bottom of the range, inclusive.
last	The top of the range, inclusive.
ch	The source character.

Returns: first <= ch && ch <= last.

Attention: Since the null_regex_traits does not do case-folding, this function is equivalent to in_range().

References boost::last.

template<typename Elem>

static bool boost::xpressive::null_regex_traits< Elem >::isctype	(	char_type	ch,
		char_class_type	mask
	)

inlinestatic

The null_regex_traits does not have character classifications, so isctype() is unused.

Parameters

ch	not used
mask	not used

Returns: false

References boost::ignore_unused().

template<typename Elem>

template<typename FwdIter >

static char_class_type boost::xpressive::null_regex_traits< Elem >::lookup_classname	(	FwdIter	begin,
		FwdIter	end,
		bool	icase
	)

inlinestatic

The null_regex_traits does not have character classifications, so lookup_classname() is unused.

Parameters

begin	not used
end	not used
icase	not used

Returns: static_cast<char_class_type>(0)

References boost::ignore_unused().

template<typename Elem>

template<typename FwdIter >

static string_type boost::xpressive::null_regex_traits< Elem >::lookup_collatename	(	FwdIter	begin,
		FwdIter	end
	)

inlinestatic

Returns a sequence of characters that represents the collating element consisting of the character sequence designated by the iterator range [F1, F2).

Returns an empty string if the character sequence is not a valid collating element.

Attention: Not currently used

References boost::ignore_unused().

template<typename Elem>

bool boost::xpressive::null_regex_traits< Elem >::operator!= ( null_regex_traits< char_type > const & that ) const

inline

Checks two null_regex_traits objects for inequality.

Returns: false.

References boost::ignore_unused().

template<typename Elem>

bool boost::xpressive::null_regex_traits< Elem >::operator== ( null_regex_traits< char_type > const & that ) const

inline

Checks two null_regex_traits objects for equality.

Returns: true.

References boost::ignore_unused().

template<typename Elem>

template<typename FwdIter >

static string_type boost::xpressive::null_regex_traits< Elem >::transform	(	FwdIter	begin,
		FwdIter	end
	)

inlinestatic

Returns a sort key for the character sequence designated by the iterator range [F1, F2) such that if the character sequence [G1, G2) sorts before the character sequence [H1, H2) then v.transform(G1, G2) < v.transform(H1, H2).

Attention: Not currently used

template<typename Elem>

template<typename FwdIter >

static string_type boost::xpressive::null_regex_traits< Elem >::transform_primary	(	FwdIter	begin,
		FwdIter	end
	)

inlinestatic

Returns a sort key for the character sequence designated by the iterator range [F1, F2) such that if the character sequence [G1, G2) sorts before the character sequence [H1, H2) when character case is not considered then v.transform_primary(G1, G2) < v.transform_primary(H1, H2).

Attention: Not currently used

template<typename Elem>

static char_type boost::xpressive::null_regex_traits< Elem >::translate ( char_type ch )

inlinestatic

No-op.

Parameters

ch	The source character.

Returns: ch

template<typename Elem>

static char_type boost::xpressive::null_regex_traits< Elem >::translate_nocase ( char_type ch )

inlinestatic

No-op.

Parameters

ch	The source character.

Returns: ch

template<typename Elem>

static int boost::xpressive::null_regex_traits< Elem >::value	(	char_type	ch,
		int	radix
	)

inlinestatic

The null_regex_traits recognizes no elements as digits, so value() is unused.

Parameters

ch	not used
radix	not used

Returns: -1

References boost::ignore_unused().

template<typename Elem>

char_type boost::xpressive::null_regex_traits< Elem >::widen ( char ch ) const

inline

Convert a char to a Elem.

Parameters

ch	The source character.

Returns: Elem(ch).

The documentation for this struct was generated from the following file:

boost_1_57_0/boost/xpressive/traits/null_regex_traits.hpp

Public Types

Public Member Functions

Static Public Member Functions

Detailed Description

template<typename Elem> struct boost::xpressive::null_regex_traits< Elem >

Member Typedef Documentation

Constructor & Destructor Documentation

Member Function Documentation

template<typename Elem>
struct boost::xpressive::null_regex_traits< Elem >