java.util.regex
Class Pattern.GroupRef

java.lang.Object
  java.util.regex.Pattern.Node
      java.util.regex.Pattern.GroupRef

Enclosing class:

Pattern

static final class Pattern.GroupRef

extends Pattern.Node

Recursive reference to a group in the regular expression. It calls matchRef because if the reference fails to match we would not unset the group.

Field Summary

(package private) Pattern.GroupHead	head
(package private) Pattern.Node	next

Constructor Summary

(package private)

Pattern.GroupRef(Pattern.GroupHead head)

Method Summary

(package private) Pattern.Node	dup(boolean not)
(package private) boolean	match(Matcher matcher, int i, CharSequence seq) This method implements the classic accept node.
(package private) boolean	study(Pattern.TreeInfo info) This method is good for all zero length assertions.

Methods inherited from class java.lang.Object

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

Field Detail

head

Pattern.GroupHead head

next

Pattern.Node next

Constructor Detail

Pattern.GroupRef

Pattern.GroupRef(Pattern.GroupHead head)

Method Detail

match

boolean match(Matcher matcher,
              int i,
              CharSequence seq)

Description copied from class: Pattern.Node

This method implements the classic accept node.

Overrides:

match in class Pattern.Node

study

boolean study(Pattern.TreeInfo info)

Description copied from class: Pattern.Node

This method is good for all zero length assertions.

Overrides:

study in class Pattern.Node

dup

Pattern.Node dup(boolean not)