GlyphTable.ChainedGlyphSequenceRule (Apache FOP Core 2.11 API)
Date: 2025-04-24

org.apache.fop.complexscripts.fonts

## Class GlyphTable.ChainedGlyphSequenceRule

- java.lang.Object
- - org.apache.fop.complexscripts.fonts.GlyphTable.Rule
  - - org.apache.fop.complexscripts.fonts.GlyphTable.GlyphSequenceRule
    - - org.apache.fop.complexscripts.fonts.GlyphTable.ChainedGlyphSequenceRule

- Enclosing class:
    GlyphTable

      public static class GlyphTable.ChainedGlyphSequenceRule
      extends GlyphTable.GlyphSequenceRule

  The `ChainedGlyphSequenceRule` class implements a subclass of `GlyphSequenceRule` that supports matching on a specific glyph sequence in a specific chained contextual.

- - ### Constructor Summary

    Constructors
    Constructor and Description
    `ChainedGlyphSequenceRule(GlyphTable.RuleLookup[] lookups, int inputSequenceLength, int[] glyphs, int[] backtrackGlyphs, int[] lookaheadGlyphs)` Instantiate a ChainedGlyphSequenceRule.

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `int[]` | `getBacktrackGlyphs()`
    `int[]` | `getLookaheadGlyphs()`
    `String` | `toString()`

    - ### Methods inherited from class org.apache.fop.complexscripts.fonts.GlyphTable.GlyphSequenceRule

      `getGlyphs, getGlyphs`

    - ### Methods inherited from class org.apache.fop.complexscripts.fonts.GlyphTable.Rule

      `getInputSequenceLength, getLookups, resolveLookupReferences`

    - ### Methods inherited from class java.lang.Object

      `clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait`

- - ### Constructor Detail

    - #### ChainedGlyphSequenceRule

          public ChainedGlyphSequenceRule(GlyphTable.RuleLookup[] lookups,
                                          int inputSequenceLength,
                                          int[] glyphs,
                                          int[] backtrackGlyphs,
                                          int[] lookaheadGlyphs)

      Instantiate a ChainedGlyphSequenceRule.
      Parameters:
        `lookups` - the rule's lookups
        `inputSequenceLength` - number of glyphs constituting input sequence (to be consumed)
        `glyphs` - the rule's input glyph sequence to match, starting with second glyph in sequence
        `backtrackGlyphs` - the rule's backtrack glyph sequence to match, starting with first glyph in sequence
        `lookaheadGlyphs` - the rule's lookahead glyph sequence to match, starting with first glyph in sequence

  - ### Method Detail

    - #### getBacktrackGlyphs

          public int[] getBacktrackGlyphs()

      Returns:
        the backtrack glyphs

    - #### getLookaheadGlyphs

          public int[] getLookaheadGlyphs()

      Returns:
        the lookahead glyphs

    - #### toString

          public String toString()

      Overrides:
        `toString` in class `GlyphTable.GlyphSequenceRule`

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