linebreakdef.h File Reference

Definitions of internal data structures, declarations of global variables, and function prototypes for the line breaking algorithm. More...

#include "unibreakdef.h"

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Data Structures
struct	LineBreakProperties
	Struct for entries of line break properties. More...
struct	LineBreakAuxRange
	Struct for entries of auxiliary line breaking properties derived from the General_Category property. More...
struct	LineBreakPropertiesLang
	Struct for association of language-specific line breaking properties with language names. More...
struct	LineBreakContext
	Context representing internal state of the line breaking algorithm. More...

Enumerations
enum	LineBreakClass {   LBP_Undefined , LBP_OP , LBP_CL , LBP_CP ,   LBP_QU , LBP_GL , LBP_NS , LBP_EX ,   LBP_SY , LBP_IS , LBP_PR , LBP_PO ,   LBP_NU , LBP_AL , LBP_HL , LBP_ID ,   LBP_IN , LBP_HY , LBP_BA , LBP_BB ,   LBP_B2 , LBP_ZW , LBP_CM , LBP_WJ ,   LBP_H2 , LBP_H3 , LBP_JL , LBP_JV ,   LBP_JT , LBP_RI , LBP_EB , LBP_EM ,   LBP_ZWJ , LBP_AK , LBP_AP , LBP_AS ,   LBP_VF , LBP_VI , LBP_HH , LBP_CB ,   LBP_AI , LBP_BK , LBP_CJ , LBP_CR ,   LBP_LF , LBP_NL , LBP_SA , LBP_SG ,   LBP_SP , LBP_XX }
	Line break classes. More...
enum	Lb25State {   LB25_NONE , LB25_PREFIX , LB25_PREFIXOP , LB25_NUM ,   LB25_NUMCLOSE }
	LB25 state for numeric expression context tracking. More...
enum	PendingRule {   PENDING_NONE , PENDING_LB15B , PENDING_LB15C , PENDING_LB19A ,   PENDING_LB28A4 }
	Identifies which lookahead rule currently has a tentative break pending resolution by the next character. More...
enum	BreakOutputType { LBOT_PER_CODE_UNIT , LBOT_PER_CODE_POINT }

Variables
const struct LineBreakProperties	lb_prop_supplementary []
	Line breaking properties for supplementary planes.
const unsigned int	lb_prop_supplementary_len
const char	lb_prop_bmp []
	Line breaking properties for BMP.
const struct LineBreakPropertiesLang	lb_prop_lang_map []
	Association data of language-specific line breaking properties with language names.

Detailed Description

Definitions of internal data structures, declarations of global variables, and function prototypes for the line breaking algorithm.

Author

Wu Yongwei

Petr Filipsky

Enumeration Type Documentation

BreakOutputType

enum BreakOutputType

Enumerator
LBOT_PER_CODE_UNIT
LBOT_PER_CODE_POINT

Lb25State

enum Lb25State

LB25 state for numeric expression context tracking.

Used for Example 7 regex-based tailoring from UAX #14-49.

Enumerator
LB25_NONE	Not in numeric expression.
LB25_PREFIX	Seen PR or PO (prefix).
LB25_PREFIXOP	Saw (PR|PO) then OP or HY.
LB25_NUM	Inside NU (NU|SY|IS)*.
LB25_NUMCLOSE	Saw NU (NU|SY|IS)* (CL|CP).

LineBreakClass

enum LineBreakClass

Line break classes.

This is a mapping of Table 1 of Unicode Standard Annex 14.

Enumerator
LBP_Undefined	Undefined.
LBP_OP	Opening punctuation.
LBP_CL	Closing punctuation.
LBP_CP	Closing parenthesis.
LBP_QU	Ambiguous quotation.
LBP_GL	Glue.
LBP_NS	Non-starters.
LBP_EX	Exclamation/Interrogation.
LBP_SY	Symbols allowing break after.
LBP_IS	Infix separator.
LBP_PR	Prefix.
LBP_PO	Postfix.
LBP_NU	Numeric.
LBP_AL	Alphabetic.
LBP_HL	Hebrew letter.
LBP_ID	Ideographic.
LBP_IN	Inseparable characters.
LBP_HY	Hyphen.
LBP_BA	Break after.
LBP_BB	Break before.
LBP_B2	Break on either side (but not pair).
LBP_ZW	Zero-width space.
LBP_CM	Combining marks.
LBP_WJ	Word joiner.
LBP_H2	Hangul LV.
LBP_H3	Hangul LVT.
LBP_JL	Hangul L Jamo.
LBP_JV	Hangul V Jamo.
LBP_JT	Hangul T Jamo.
LBP_RI	Regional indicator.
LBP_EB	Emoji base.
LBP_EM	Emoji modifier.
LBP_ZWJ	Zero width joiner.
LBP_AK	Aksara.
LBP_AP	Aksara Pre-Base.
LBP_AS	Aksara Start.
LBP_VF	Virama Final.
LBP_VI	Virama.
LBP_HH	Unambiguous Hyphen.
LBP_CB	Contingent break.
LBP_AI	Ambiguous (alphabetic or ideograph).
LBP_BK	Break (mandatory).
LBP_CJ	Conditional Japanese starter.
LBP_CR	Carriage return.
LBP_LF	Line feed.
LBP_NL	Next line.
LBP_SA	South-East Asian.
LBP_SG	Surrogates.
LBP_SP	Space.
LBP_XX	Unknown.

PendingRule

enum PendingRule

Identifies which lookahead rule currently has a tentative break pending resolution by the next character.

Enumerator
PENDING_NONE	No pending tentative break.
PENDING_LB15B	LB15b: tentative break before a Pf&QU.
PENDING_LB15C	LB15c: tentative break before IS after SP.
PENDING_LB19A	LB19a: tentative break before a Pi&QU.
PENDING_LB28A4	LB28a sub-rule 4: tentative break after aksara.

Variable Documentation

lb_prop_bmp

const char lb_prop_bmp[]

extern

Line breaking properties for BMP.

lb_prop_lang_map

const struct LineBreakPropertiesLang lb_prop_lang_map[]

extern

Association data of language-specific line breaking properties with language names.

This is the definition for the static data in this file. If you want more flexibility, or do not need the data here, you may want to redefine lb_prop_lang_map in your C source file.

lb_prop_supplementary

const struct LineBreakProperties lb_prop_supplementary[]

extern

Line breaking properties for supplementary planes.

lb_prop_supplementary_len

const unsigned int lb_prop_supplementary_len

extern