java.util.regex
Class Pattern.GroupTail

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

Enclosing class:

Pattern

static final class Pattern.GroupTail

extends Pattern.Node

The GroupTail handles the setting of group beginning and ending locations when groups are successfully matched. It must also be able to unset groups that have to be backed off of. The GroupTail node is also used when a previous group is referenced, and in that case no group information needs to be set.

Field Summary

(package private) int	groupIndex
(package private) int	localIndex
(package private) Pattern.Node	next

Constructor Summary

(package private)

Pattern.GroupTail(int localCount, int groupCount)

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

localIndex

int localIndex

groupIndex

int groupIndex

next

Pattern.Node next

Constructor Detail

Pattern.GroupTail

Pattern.GroupTail(int localCount,
                  int groupCount)

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

dup

Pattern.Node dup(boolean not)

study

boolean study(Pattern.TreeInfo info)

This method is good for all zero length assertions.