A grapheme segment. More...

#include <grapheme_segment.hpp>

Inheritance diagram for tetengo::text::grapheme_splitting::grapheme_segment:

Collaboration diagram for tetengo::text::grapheme_splitting::grapheme_segment:

Public Types
enum class	break_property_type { cr , lf , control , extend , zwj , regional , prepend , spacing_mark , l , v , t , lv , lvt , other }
	A break peoperty type. More...

Public Member Functions
	~grapheme_segment ()
	Destroys the grapheme segment.

std::vector< std::size_t >	segment_offsets (const std::vector< break_property_type > &break_properties) const
	Returns the grapheme offsets.

Static Public Member Functions
static const grapheme_segment &	instance ()
	Returns the instance.

Detailed Description

A grapheme segment.

Member Enumeration Documentation

◆ break_property_type

enum class tetengo::text::grapheme_splitting::grapheme_segment::break_property_type

strong

A break peoperty type.

Enumerator
cr	CR.
lf	LF.
control	Control.
extend	Extend.
zwj	ZWJ.
regional	Regional.
prepend	Prepend.
spacing_mark	SpacingMark.
l	L.
v	V.
t	T.
lv	LV.
lvt	LVT.
other	Other.

Member Function Documentation

◆ instance()

static const grapheme_segment & tetengo::text::grapheme_splitting::grapheme_segment::instance ( )

static

Returns the instance.

Returns: The instance.

◆ segment_offsets()

std::vector< std::size_t > tetengo::text::grapheme_splitting::grapheme_segment::segment_offsets ( const std::vector< break_property_type > & break_properties ) const

Returns the grapheme offsets.

The graphemes are split between the followings. (/: split, X:connect, X?: connect if the number of precedings is odd)

 from \ to |eot|CR |LF |Con|Ext|ZWJ|Reg|Pre|SpM|L  |V  |T  |LV |LVT|Oth|
-----------+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
sot        | / | / | / | / | / | / | / | / | / | / | / | / | / | / | / |
CR         | / | / | X | / | / | / | / | / | / | / | / | / | / | / | / |
LF         | / | / | / | / | / | / | / | / | / | / | / | / | / | / | / |
Control    | / | / | / | / | / | / | / | / | / | / | / | / | / | / | / |
Extend     | / | / | / | / | X | X | / | / | X | / | / | / | / | / | / |
ZWJ        | / | / | / | / | X | X | / | / | X | / | / | / | / | / | X |
Regional   | / | / | / | / | X | X | X?| / | X | / | / | / | / | / | / |
Prepend    | / | / | / | / | X | X | X | X | X | X | X | X | X | X | X |
SpacingMark| / | / | / | / | X | X | / | / | X | / | / | / | / | / | / |
L          | / | / | / | / | X | X | / | / | X | X | X | / | X | X | / |
V          | / | / | / | / | X | X | / | / | X | / | X | X | / | / | / |
T          | / | / | / | / | X | X | / | / | X | / | / | X | / | / | / |
LV         | / | / | / | / | X | X | / | / | X | / | X | X | / | / | / |
LVT        | / | / | / | / | X | X | / | / | X | / | / | X | / | / | / |
Other      | / | / | / | / | X | X | / | / | X | / | / | / | / | / | / |
-----------+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+

Parameters

break_properties Break properties.

Returns: Grapheme offsets.

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

library/text/cpp/include/tetengo/text/grapheme_splitting/grapheme_segment.hpp

Public Types