org.apache.lucene.analysis.compound.hyphenation

## Interface PatternConsumer

All Known Implementing Classes:
  HyphenationTree

    public interface PatternConsumer

This interface is used to connect the XML pattern file parser to the hyphenation tree. This class has been taken from the Apache FOP project (http://xmlgraphics.apache.org/fop/). They have been slightly modified.

### Method Summary

Methods
`void` `addClass(String chargroup)` Add a character class.
`void` `addException(String word, ArrayList<Object> hyphenatedword)` Add a hyphenation exception.
`void` `addPattern(String pattern, String values)` Add hyphenation patterns.

### Method Detail

#### addClass

    void addClass(String chargroup)

Add a character class. A character class defines characters that are considered equivalent for the purpose of hyphenation (e.g. "aA"). It usually means to ignore case.

Parameters:
  `chargroup` - character group

#### addException

    void addException(String word,
                    ArrayList<Object> hyphenatedword)

Add a hyphenation exception. An exception replaces the result obtained by the algorithm for cases for which this fails or the user wants to provide his own hyphenation. A hyphenatedword is a vector of alternating String's and `Hyphen` instances

#### addPattern

    void addPattern(String pattern,
                  String values)

Add hyphenation patterns.

Parameters:
  `pattern` - the pattern
  `values` - interletter values expressed as a string of digit characters.