Documentation

Otl
in package
uses Strict

Table of Contents

Constants

_DICT_FINAL_MATCH  = 0x4
_DICT_INTERMEDIATE_MATCH  = 0x3
_DICT_NODE_TYPE_LINEAR  = 0x2
_DICT_NODE_TYPE_SPLIT  = 0x1
_OTL_OLD_SPEC_COMPAT_1  = true

Properties

$_pos  : mixed
$arabGlyphs  : mixed
$arabLeftJoining  : mixed
$arabRightJoining  : mixed
$arabTransparent  : mixed
$arabTransparentJoin  : mixed
$assocLigs  : mixed
$assocMarks  : mixed
$current_fh  : mixed
$debugOTL  : mixed
$Entry  : mixed
$Exit  : mixed
$fontkey  : mixed
$GDEFdata  : mixed
$GlyphClassBases  : mixed
$GlyphClassComponents  : mixed
$GlyphClassLigatures  : mixed
$GlyphClassMarks  : mixed
$glyphIDtoUni  : mixed
$GPOS_offset  : mixed
$GPOSdata  : mixed
$GPOSLookups  : mixed
$GSLuCoverage  : mixed
$GSUB_length  : mixed
$GSUB_offset  : mixed
$GSUBdata  : mixed
$GSUBfont  : mixed
$GSUBLookups  : mixed
$Ignores  : mixed
$lastBidiStrongType  : mixed
$lbdicts  : mixed
$LuCoverage  : mixed
$LuDataCache  : mixed
$MarkAttachmentType  : mixed
$MarkGlyphSets  : mixed
$OTLdata  : mixed
$restrictToSyllable  : mixed
$schOTLdata  : mixed
$shaper  : mixed
$ttfOTLdata  : mixed
$fontCache  : mixed
$mpdf  : mixed

Methods

__call()  : mixed
__callStatic()  : mixed
__construct()  : mixed
__get()  : mixed
__isset()  : mixed
__set()  : mixed
__unset()  : mixed
_applyGSUBrules()  : mixed
_applyGSUBrulesIndic()  : mixed
_applyGSUBrulesMyanmar()  : mixed
_applyGSUBrulesSingly()  : mixed
_applyGSUBsubtable()  : mixed
_applyGSUBsubtableSpecial()  : mixed
_applyTagSettings()  : mixed
_updateLigatureMarks()  : mixed
applyOTL()  : mixed
bidiPrepare()  : mixed
The following versions for BidiSort work on amalgamated chunks to process the whole paragraph
bidiReorder()  : mixed
Reorder, once divided into lines
bidiSort()  : mixed
Bidi algorithm
GSUBsubstitute()  : mixed
removeChar()  : mixed
Remove one or more occurrences of $char (single character) from $txt and adjust OTLdata
replaceSpace()  : mixed
Remove one or more occurrences of $char (single character) from $txt and adjust OTLdata
sliceOTLdata()  : mixed
splitOTLdata()  : mixed
trimOTLdata()  : mixed
_applyGPOSrules()  : mixed
_applyGPOSsubtable()  : mixed
_applyGPOSvaluerecord()  : mixed
_checkGCOMignore()  : mixed
_dumpproc()  : mixed
_getAnchorTable()  : mixed
_getClassDefinitionTable()  : mixed
_getClasses()  : mixed
_getCoverage()  : mixed
_getCoverageGID()  : mixed
_getGCOMignoreString()  : mixed
_getMarkRecord()  : mixed
_getOTLLangTag()  : mixed
_getOTLscriptTag()  : mixed
_getValueRecord()  : mixed
_getXAdvancePos()  : mixed
arabic_initialise()  : mixed
arabic_shaper()  : mixed
checkContextMatch()  : mixed
checkContextMatchMultiple()  : mixed
checkContextMatchMultipleUni()  : mixed
checkwordmatch()  : mixed
count_bits()  : mixed
get_arab_glyphs()  : mixed
glyphToChar()  : mixed
read_short()  : mixed
read_ushort()  : mixed
seaLineBreaking()  : mixed
South East Asian Linebreaking (Thai, Khmer and Lao) using dictionary of words
seek()  : mixed
skip()  : mixed
tibetanLineBreaking()  : mixed
unicode_hex()  : mixed

Constants

_DICT_FINAL_MATCH

public mixed _DICT_FINAL_MATCH = 0x4

_DICT_INTERMEDIATE_MATCH

public mixed _DICT_INTERMEDIATE_MATCH = 0x3

_DICT_NODE_TYPE_LINEAR

public mixed _DICT_NODE_TYPE_LINEAR = 0x2

_DICT_NODE_TYPE_SPLIT

public mixed _DICT_NODE_TYPE_SPLIT = 0x1

_OTL_OLD_SPEC_COMPAT_1

public mixed _OTL_OLD_SPEC_COMPAT_1 = true

Properties

$_pos

public mixed $_pos

$arabGlyphs

public mixed $arabGlyphs

$arabLeftJoining

public mixed $arabLeftJoining

$arabRightJoining

public mixed $arabRightJoining

$arabTransparent

public mixed $arabTransparent

$arabTransparentJoin

public mixed $arabTransparentJoin

$assocLigs

public mixed $assocLigs

$assocMarks

public mixed $assocMarks

$current_fh

public mixed $current_fh

$debugOTL

public mixed $debugOTL = false

$Entry

public mixed $Entry

$Exit

public mixed $Exit

$fontkey

public mixed $fontkey

$GDEFdata

public mixed $GDEFdata

$GlyphClassBases

public mixed $GlyphClassBases

$GlyphClassComponents

public mixed $GlyphClassComponents

$GlyphClassLigatures

public mixed $GlyphClassLigatures

$GlyphClassMarks

public mixed $GlyphClassMarks

$glyphIDtoUni

public mixed $glyphIDtoUni

$GPOS_offset

public mixed $GPOS_offset

$GPOSdata

public mixed $GPOSdata

$GPOSLookups

public mixed $GPOSLookups

$GSLuCoverage

public mixed $GSLuCoverage

$GSUB_length

public mixed $GSUB_length

$GSUB_offset

public mixed $GSUB_offset

$GSUBdata

public mixed $GSUBdata

$GSUBfont

public mixed $GSUBfont

$GSUBLookups

public mixed $GSUBLookups

$Ignores

public mixed $Ignores

$lastBidiStrongType

public mixed $lastBidiStrongType

$lbdicts

public mixed $lbdicts

$LuCoverage

public mixed $LuCoverage

$LuDataCache

public mixed $LuDataCache

$MarkAttachmentType

public mixed $MarkAttachmentType

$MarkGlyphSets

public mixed $MarkGlyphSets

$OTLdata

public mixed $OTLdata

$restrictToSyllable

public mixed $restrictToSyllable

$schOTLdata

public mixed $schOTLdata

$shaper

public mixed $shaper

$ttfOTLdata

public mixed $ttfOTLdata

$fontCache

private mixed $fontCache

$mpdf

private mixed $mpdf

Methods

__call()

public __call(string $name, array<string|int, mixed> $args) : mixed
Parameters
$name : string

method name

$args : array<string|int, mixed>

arguments

__callStatic()

public static __callStatic(string $name, array<string|int, mixed> $args) : mixed
Parameters
$name : string

lowercase method name

$args : array<string|int, mixed>

arguments

__get()

public & __get(string $name) : mixed
Parameters
$name : string

property name

__isset()

public __isset(string $name) : mixed
Parameters
$name : string

property name

Tags
throws
StrictObjects

__set()

public __set(string $name, mixed $value) : mixed
Parameters
$name : string

property name

$value : mixed

property value

__unset()

public __unset(string $name) : mixed
Parameters
$name : string

property name

Tags
throws
StrictObjects

_applyGSUBrules()

public _applyGSUBrules(mixed $usetags, mixed $scriptTag, mixed $langsys) : mixed
Parameters
$usetags : mixed
$scriptTag : mixed
$langsys : mixed

_applyGSUBrulesIndic()

public _applyGSUBrulesIndic(mixed $usetags, mixed $scriptTag, mixed $langsys, mixed $is_old_spec) : mixed
Parameters
$usetags : mixed
$scriptTag : mixed
$langsys : mixed
$is_old_spec : mixed

_applyGSUBrulesMyanmar()

public _applyGSUBrulesMyanmar(mixed $usetags, mixed $scriptTag, mixed $langsys) : mixed
Parameters
$usetags : mixed
$scriptTag : mixed
$langsys : mixed

_applyGSUBrulesSingly()

public _applyGSUBrulesSingly(mixed $usetags, mixed $scriptTag, mixed $langsys) : mixed
Parameters
$usetags : mixed
$scriptTag : mixed
$langsys : mixed

_applyGSUBsubtable()

public _applyGSUBsubtable(mixed $lookupID, mixed $subtable, mixed $ptr, mixed $currGlyph, mixed $currGID, mixed $subtable_offset, mixed $Type, mixed $Flag, mixed $MarkFilteringSet, mixed $LuCoverage, mixed $level, mixed $currentTag, mixed $is_old_spec, mixed $tagInt) : mixed
Parameters
$lookupID : mixed
$subtable : mixed
$ptr : mixed
$currGlyph : mixed
$currGID : mixed
$subtable_offset : mixed
$Type : mixed
$Flag : mixed
$MarkFilteringSet : mixed
$LuCoverage : mixed
$level : mixed
$currentTag : mixed
$is_old_spec : mixed
$tagInt : mixed

_applyGSUBsubtableSpecial()

public _applyGSUBsubtableSpecial(mixed $lookupID, mixed $subtable, mixed $ptr, mixed $currGlyph, mixed $currGID, mixed $nextGlyph, mixed $nextGID, mixed $subtable_offset, mixed $Type, mixed $LuCoverage) : mixed
Parameters
$lookupID : mixed
$subtable : mixed
$ptr : mixed
$currGlyph : mixed
$currGID : mixed
$nextGlyph : mixed
$nextGID : mixed
$subtable_offset : mixed
$Type : mixed
$LuCoverage : mixed

_applyTagSettings()

public _applyTagSettings(mixed $tags, mixed $Features[, mixed $omittags = '' ][, mixed $onlytags = false ]) : mixed
Parameters
$tags : mixed
$Features : mixed
$omittags : mixed = ''
$onlytags : mixed = false

_updateLigatureMarks()

public _updateLigatureMarks(mixed $pos, mixed $n) : mixed
Parameters
$pos : mixed
$n : mixed

applyOTL()

public applyOTL(mixed $str, mixed $useOTL) : mixed
Parameters
$str : mixed
$useOTL : mixed

bidiPrepare()

The following versions for BidiSort work on amalgamated chunks to process the whole paragraph

public bidiPrepare(mixed &$para, mixed $dir) : mixed

Firstly set the level in the OTLdata - called from fn printbuffer() [_bidiPrepare] Secondly re-order - called from fn writeFlowingBlock and FinishFlowingBlock, when already divided into lines. [_bidiReorder]

Parameters
$para : mixed
$dir : mixed

bidiReorder()

Reorder, once divided into lines

public bidiReorder(mixed &$chunkorder, mixed &$content, mixed &$cOTLdata, mixed $blockdir) : mixed
Parameters
$chunkorder : mixed
$content : mixed
$cOTLdata : mixed
$blockdir : mixed

bidiSort()

Bidi algorithm

public bidiSort(mixed $ta, mixed $str, mixed $dir, mixed &$chunkOTLdata, mixed $useGPOS) : mixed

These functions are called from mpdf after GSUB/GPOS has taken place At this stage the bidi-type is in string form

Bidirectional Character Types

Type Description General Scope Strong L Left-to-Right LRM, most alphabetic, syllabic, Han ideographs, non-European or non-Arabic digits, ... LRE Left-to-Right Embedding LRE LRO Left-to-Right Override LRO R Right-to-Left RLM, Hebrew alphabet, and related punctuation AL Right-to-Left Arabic Arabic, Thaana, and Syriac alphabets, most punctuation specific to those scripts, ... RLE Right-to-Left Embedding RLE RLO Right-to-Left Override RLO Weak PDF Pop Directional Format PDF EN European Number European digits, Eastern Arabic-Indic digits, ... ES European Number Separator Plus sign, minus sign ET European Number Terminator Degree sign, currency symbols, ... AN Arabic Number Arabic-Indic digits, Arabic decimal and thousands separators, ... CS Common Number Separator Colon, comma, full stop (period), No-break space, ... NSM Nonspacing Mark Characters marked Mn (Nonspacing_Mark) and Me (Enclosing_Mark) in the Unicode Character Database BN Boundary Neutral Default ignorables, non-characters, and control characters, other than those explicitly given other types. Neutral B Paragraph Separator Paragraph separator, appropriate Newline Functions, higher-level protocol paragraph determination S Segment Separator Tab WS Whitespace Space, figure space, line separator, form feed, General Punctuation spaces, ... ON Other Neutrals All other characters, including OBJECT REPLACEMENT CHARACTER

Parameters
$ta : mixed
$str : mixed
$dir : mixed
$chunkOTLdata : mixed
$useGPOS : mixed

GSUBsubstitute()

public GSUBsubstitute(mixed $pos, mixed $substitute, mixed $Type[, mixed $GlyphPos = null ]) : mixed
Parameters
$pos : mixed
$substitute : mixed
$Type : mixed
$GlyphPos : mixed = null

removeChar()

Remove one or more occurrences of $char (single character) from $txt and adjust OTLdata

public removeChar(mixed &$txt, mixed &$cOTLdata, mixed $char) : mixed
Parameters
$txt : mixed
$cOTLdata : mixed
$char : mixed

replaceSpace()

Remove one or more occurrences of $char (single character) from $txt and adjust OTLdata

public replaceSpace(mixed &$txt, mixed &$cOTLdata) : mixed
Parameters
$txt : mixed
$cOTLdata : mixed

sliceOTLdata()

public sliceOTLdata(mixed $OTLdata, mixed $pos, mixed $len) : mixed
Parameters
$OTLdata : mixed
$pos : mixed
$len : mixed

splitOTLdata()

public splitOTLdata(mixed &$cOTLdata, mixed $OTLcutoffpos[, mixed $OTLrestartpos = '' ]) : mixed
Parameters
$cOTLdata : mixed
$OTLcutoffpos : mixed
$OTLrestartpos : mixed = ''

trimOTLdata()

public trimOTLdata(mixed &$cOTLdata[, mixed $Left = true ][, mixed $Right = true ]) : mixed
Parameters
$cOTLdata : mixed
$Left : mixed = true
$Right : mixed = true

_applyGPOSrules()

private _applyGPOSrules(mixed $LookupList[, mixed $is_old_spec = false ]) : mixed
Parameters
$LookupList : mixed
$is_old_spec : mixed = false

_applyGPOSsubtable()

private _applyGPOSsubtable(mixed $lookupID, mixed $subtable, mixed $ptr, mixed $currGlyph, mixed $currGID, mixed $subtable_offset, mixed $Type, mixed $Flag, mixed $MarkFilteringSet, mixed $LuCoverage, mixed $tag, mixed $level, mixed $is_old_spec) : mixed
Parameters
$lookupID : mixed
$subtable : mixed
$ptr : mixed
$currGlyph : mixed
$currGID : mixed
$subtable_offset : mixed
$Type : mixed
$Flag : mixed
$MarkFilteringSet : mixed
$LuCoverage : mixed
$tag : mixed
$level : mixed
$is_old_spec : mixed

_applyGPOSvaluerecord()

private _applyGPOSvaluerecord(mixed $basepos, mixed $Value) : mixed
Parameters
$basepos : mixed
$Value : mixed

_checkGCOMignore()

private _checkGCOMignore(mixed $flag, mixed $glyph, mixed $MarkFilteringSet) : mixed
Parameters
$flag : mixed
$glyph : mixed
$MarkFilteringSet : mixed

_dumpproc()

private _dumpproc(mixed $GPOSSUB, mixed $lookupID, mixed $subtable, mixed $Type, mixed $Format, mixed $ptr, mixed $currGlyph, mixed $level) : mixed
Parameters
$GPOSSUB : mixed
$lookupID : mixed
$subtable : mixed
$Type : mixed
$Format : mixed
$ptr : mixed
$currGlyph : mixed
$level : mixed

_getAnchorTable()

private _getAnchorTable([mixed $offset = 0 ]) : mixed
Parameters
$offset : mixed = 0

_getClassDefinitionTable()

private _getClassDefinitionTable(mixed $offset) : mixed
Parameters
$offset : mixed

_getClasses()

private _getClasses(mixed $offset) : mixed
Parameters
$offset : mixed

_getCoverage()

private _getCoverage() : mixed

_getCoverageGID()

private _getCoverageGID() : mixed

_getGCOMignoreString()

private _getGCOMignoreString(mixed $flag, mixed $MarkFilteringSet) : mixed
Parameters
$flag : mixed
$MarkFilteringSet : mixed

_getMarkRecord()

private _getMarkRecord(mixed $offset, mixed $MarkPos) : mixed
Parameters
$offset : mixed
$MarkPos : mixed

_getOTLLangTag()

private _getOTLLangTag(mixed $ietf, mixed $available) : mixed
Parameters
$ietf : mixed
$available : mixed

_getOTLscriptTag()

private _getOTLscriptTag(mixed $ScriptLang, mixed $scripttag, mixed $scriptblock, mixed $shaper, mixed $useOTL, mixed $mode) : mixed
Parameters
$ScriptLang : mixed
$scripttag : mixed
$scriptblock : mixed
$shaper : mixed
$useOTL : mixed
$mode : mixed

_getValueRecord()

private _getValueRecord(mixed $ValueFormat) : mixed
Parameters
$ValueFormat : mixed

_getXAdvancePos()

private _getXAdvancePos(mixed $pos) : mixed
Parameters
$pos : mixed

arabic_initialise()

private arabic_initialise() : mixed

arabic_shaper()

private arabic_shaper(mixed $usetags, mixed $scriptTag) : mixed
Parameters
$usetags : mixed
$scriptTag : mixed

checkContextMatch()

private checkContextMatch(mixed $Input, mixed $Backtrack, mixed $Lookahead, mixed $ignore, mixed $ptr) : mixed
Parameters
$Input : mixed
$Backtrack : mixed
$Lookahead : mixed
$ignore : mixed
$ptr : mixed

checkContextMatchMultiple()

private checkContextMatchMultiple(mixed $Input, mixed $Backtrack, mixed $Lookahead, mixed $ignore, mixed $ptr[, mixed $class0excl = '' ][, mixed $bclass0excl = '' ][, mixed $lclass0excl = '' ]) : mixed
Parameters
$Input : mixed
$Backtrack : mixed
$Lookahead : mixed
$ignore : mixed
$ptr : mixed
$class0excl : mixed = ''
$bclass0excl : mixed = ''
$lclass0excl : mixed = ''

checkContextMatchMultipleUni()

private checkContextMatchMultipleUni(mixed $Input, mixed $Backtrack, mixed $Lookahead, mixed $ignore, mixed $ptr[, mixed $class0excl = [] ][, mixed $bclass0excl = [] ][, mixed $lclass0excl = [] ]) : mixed
Parameters
$Input : mixed
$Backtrack : mixed
$Lookahead : mixed
$ignore : mixed
$ptr : mixed
$class0excl : mixed = []
$bclass0excl : mixed = []
$lclass0excl : mixed = []

checkwordmatch()

private checkwordmatch(mixed &$dict, mixed $ptr) : mixed
Parameters
$dict : mixed
$ptr : mixed

count_bits()

private count_bits(mixed $n) : mixed
Parameters
$n : mixed

get_arab_glyphs()

private get_arab_glyphs(mixed $char, mixed $type, mixed &$chars, mixed $i, mixed $scriptTag, mixed $usetags) : mixed
Parameters
$char : mixed
$type : mixed
$chars : mixed
$i : mixed
$scriptTag : mixed
$usetags : mixed

glyphToChar()

private glyphToChar(mixed $gid) : mixed
Parameters
$gid : mixed

read_short()

private read_short() : mixed

read_ushort()

private read_ushort() : mixed

seaLineBreaking()

South East Asian Linebreaking (Thai, Khmer and Lao) using dictionary of words

private seaLineBreaking() : mixed

Sets $this->OTLdata[$i]['wordend']=true at possible end of word boundaries

seek()

private seek(mixed $pos) : mixed
Parameters
$pos : mixed

skip()

private skip(mixed $delta) : mixed
Parameters
$delta : mixed

tibetanLineBreaking()

private tibetanLineBreaking() : mixed

unicode_hex()

private unicode_hex(mixed $unicode_dec) : mixed
Parameters
$unicode_dec : mixed 

        

        
    




    

    

                                

                

                                
    

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