Class SubTableLookup5Format3.SubstRuleFormat3
java.lang.Object
com.itextpdf.io.font.otf.ContextualRule
com.itextpdf.io.font.otf.ContextualSubstRule
com.itextpdf.io.font.otf.lookuptype5.SubTableLookup5Format3.SubstRuleFormat3
- Enclosing class:
- SubTableLookup5Format3
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Constructor Summary
ConstructorDescriptionSubstRuleFormat3
(List<Set<Integer>> coverages, SubstLookupRecord[] substLookupRecords) -
Method Summary
Modifier and TypeMethodDescriptionint
Gets the length of the context glyph sequence defined by this ruleRetrieves the substitution lookup records.boolean
isGlyphMatchesInput
(int glyphId, int atIdx) Checks if glyph line element matches element from input sequence of the rule.Methods inherited from class com.itextpdf.io.font.otf.ContextualRule
getBacktrackContextLength, getLookaheadContextLength, isGlyphMatchesBacktrack, isGlyphMatchesLookahead
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Constructor Details
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SubstRuleFormat3
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Method Details
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getContextLength
public int getContextLength()Description copied from class:ContextualRule
Gets the length of the context glyph sequence defined by this rule- Specified by:
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getContextLength
in classContextualRule
- Returns:
- length of the context
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getSubstLookupRecords
Description copied from class:ContextualSubstRule
Retrieves the substitution lookup records. Each record specifies a position in the context glyph sequence and a LookupListIndex to the substitution lookup that is applied at that position.- Specified by:
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getSubstLookupRecords
in classContextualSubstRule
- Returns:
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an array of
SubstLookupRecord
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isGlyphMatchesInput
public boolean isGlyphMatchesInput(int glyphId, int atIdx) Description copied from class:ContextualRule
Checks if glyph line element matches element from input sequence of the rule.
NOTE: rules do not contain the first element of the input sequence, the first element is defined by rule position in substitution table. Therefore atIdx shall not be 0.- Specified by:
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isGlyphMatchesInput
in classContextualRule
- Parameters:
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glyphId
- glyph code id -
atIdx
- index in the rule sequence. Shall be: 0 < atIdx <ContextualRule.getContextLength()
- Returns:
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true
if glyph matches element
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