com.vgrs.xcode.idna.contextualrule
Class ZeroWidthNonJoinerRule

java.lang.Object
  com.vgrs.xcode.idna.contextualrule.AbstractContextualRule
      com.vgrs.xcode.idna.contextualrule.AbstractAllCodePointsNotEvaluated
          com.vgrs.xcode.idna.contextualrule.AbstractJoinerCodePointRule
              com.vgrs.xcode.idna.contextualrule.ZeroWidthNonJoinerRule

All Implemented Interfaces:

ContextualRule

public class ZeroWidthNonJoinerRule
extends AbstractJoinerCodePointRule

• Zero Width Non Joiner Contextual Rule
• Code Point : U+200C
• Rule :

  If Canonical_Combining_Class(Before(cp)) .eq. Virama Then True;

  If RegExpMatch((Joining_Type:{L,D})(Joining_Type:T)*? (Joining_Type:T)*(Joining_Type:{R,D})) Then True;

Version:

1.0 May 5, 2010

Author:

nchigurupati

Field Summary

Fields inherited from interface com.vgrs.xcode.idna.contextualrule.ContextualRule

ALL_CODE_POINTS_EVALUATED_FALSE, ALL_CODE_POINTS_EVALUATED_TRUE

Constructor Summary

ZeroWidthNonJoinerRule()

Method Summary

void	executeRule(int aCodePointIndex, int[] aCodePoints) This method first checks to see if the canonical combining class of the code point before the ZERO WIDTH NON JOINER code point is VIRAMA.

Methods inherited from class com.vgrs.xcode.idna.contextualrule.AbstractJoinerCodePointRule

checkIfCpBeforeIsVirama

Methods inherited from class com.vgrs.xcode.idna.contextualrule.AbstractAllCodePointsNotEvaluated

allCodePointsEvaluated

Methods inherited from class com.vgrs.xcode.idna.contextualrule.AbstractContextualRule

getCodePointToWhichRuleApplies, getRuleName, ruleAppliesToCodepoint, setCodePointToWhichRuleApplies, setRuleName

Methods inherited from class java.lang.Object

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

Constructor Detail

ZeroWidthNonJoinerRule

public ZeroWidthNonJoinerRule()

Method Detail

executeRule

public void executeRule(int aCodePointIndex,
                        int[] aCodePoints)
                 throws XcodeException

This method first checks to see if the canonical combining class of the code point before the ZERO WIDTH NON JOINER code point is VIRAMA. If it is, then the rule returns. Otherwise a further check is done to ensure that the code points satisfy the regular expression specified by this contextual rule.

Parameters:

aCodePointIndex - the index of the code point that satisfied the condition of this rule

aCodePoints - the code points to be evaluated.

Throws:

XcodeException