GlyphSubstitution

All Known Implementing Classes:

GlyphSubstitutionSubtable, GlyphSubstitutionTable.AlternateSubtable, GlyphSubstitutionTable.AlternateSubtableFormat1, GlyphSubstitutionTable.ChainedContextualSubtable, GlyphSubstitutionTable.ChainedContextualSubtableFormat1, GlyphSubstitutionTable.ChainedContextualSubtableFormat2, GlyphSubstitutionTable.ChainedContextualSubtableFormat3, GlyphSubstitutionTable.ContextualSubtable, GlyphSubstitutionTable.ContextualSubtableFormat1, GlyphSubstitutionTable.ContextualSubtableFormat2, GlyphSubstitutionTable.ContextualSubtableFormat3, GlyphSubstitutionTable.LigatureSubtable, GlyphSubstitutionTable.LigatureSubtableFormat1, GlyphSubstitutionTable.MultipleSubtable, GlyphSubstitutionTable.MultipleSubtableFormat1, GlyphSubstitutionTable.ReverseChainedSingleSubtable, GlyphSubstitutionTable.ReverseChainedSingleSubtableFormat1, GlyphSubstitutionTable.SingleSubtable, GlyphSubstitutionTable.SingleSubtableFormat1, GlyphSubstitutionTable.SingleSubtableFormat2
```
public interface GlyphSubstitution
```
The GlyphSubstitution interface is implemented by a glyph substitution subtable that supports the determination of glyph substitution information based on script and language of the corresponding character content.

This work was originally authored by Glenn Adams (gadams@apache.org).

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`boolean`	`substitute(GlyphSubstitutionState ss)`	Perform glyph substitution at the current index, mutating the substitution state object as required.

- Method Detail
  - substitute
```
boolean substitute(GlyphSubstitutionState ss)
```
    Perform glyph substitution at the current index, mutating the substitution state object as required. Only the context associated with the current index is processed.
    
    Parameters:
    
    ss - glyph substitution state object
    
    Returns:
    
    true if the glyph subtable was applied, meaning that the current context matches the associated input context glyph coverage table