GlyphTable.ChainedClassSequenceRule (Apache FOP 2.7 API)
Date: 2022-01-12

org.apache.fop.complexscripts.fonts

## Class GlyphTable.ChainedClassSequenceRule

- java.lang.Object
- - org.apache.fop.complexscripts.fonts.GlyphTable.Rule
  - - org.apache.fop.complexscripts.fonts.GlyphTable.ClassSequenceRule
    - - org.apache.fop.complexscripts.fonts.GlyphTable.ChainedClassSequenceRule

- Enclosing class:
    GlyphTable

      public static class GlyphTable.ChainedClassSequenceRule
      extends GlyphTable.ClassSequenceRule

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

- - ### Constructor Summary

    Constructors
    Constructor and Description
    `ChainedClassSequenceRule(GlyphTable.RuleLookup[] lookups, int inputSequenceLength, int[] classes, int[] backtrackClasses, int[] lookaheadClasses)` Instantiate a ChainedClassSequenceRule.

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `int[]` | `getBacktrackClasses()`
    `int[]` | `getLookaheadClasses()`
    `java.lang.String` | `toString()`

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

      `getClasses, getClasses`

    - ### 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

    - #### ChainedClassSequenceRule

          public ChainedClassSequenceRule(GlyphTable.RuleLookup[] lookups,
                                          int inputSequenceLength,
                                          int[] classes,
                                          int[] backtrackClasses,
                                          int[] lookaheadClasses)

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

  - ### Method Detail

    - #### getBacktrackClasses

          public int[] getBacktrackClasses()

      Returns:
        the backtrack classes

    - #### getLookaheadClasses

          public int[] getLookaheadClasses()

      Returns:
        the lookahead classes

    - #### toString

          public java.lang.String toString()

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

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