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Package jregex
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<TD WIDTH="15%"><B><A HREF="MatchIterator.html"><I>MatchIterator</I></A></B></TD>
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<TD WIDTH="15%"><B><A HREF="Matcher.html">Matcher</A></B></TD>
<TD>Matcher instance is an automaton that actually performs matching. </TD>
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<TD WIDTH="15%"><B><A HREF="Pattern.html">Pattern</A></B></TD>
<TD>A handle for a precompiled regular expression.<br>
 To match a regular expression <code>myExpr</code> against a text <code>myString</code> one should first create a Pattern object:
 Pattern p=new Pattern(myExpr);
 
 then obtain a Matcher object:
 Matcher matcher=p.matcher(myText);
 
 The latter is an automaton that actually performs a search. </TD>
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<TD>An implementation of the Substitution interface. </TD>
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<TD><b>The Replacer class</b> suggests some methods to replace occurences of a pattern 
 either by a result of evaluation of a perl-like expression, or by a plain string,
 or according to a custom substitution model, provided as a Substitution interface implementation.<br>
 A Replacer instance may be obtained either using Pattern.replacer(...) method, or by constructor:
 Pattern p=new Pattern("\\w+");
 Replacer perlExpressionReplacer=p.replacer("[$&]");
 //or another way to do the same
 Substitution myOwnModel=new Substitution(){
    public void appendSubstitution(MatchResult match,TextBuffer tb){
       tb.append('[');
       match.getGroup(MatchResult.MATCH,tb);
       tb.append(']');
    }
 }
 Replacer myVeryOwnReplacer=new Replacer(p,myOwnModel);
 
 The second method is much more verbose, but gives more freedom.
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<TD>The Tokenizer class suggests a methods to break a text into tokens using 
 occurences of a pattern as delimiters.
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<TD>A Pattern subclass that accepts a simplified pattern syntax:
 <code>?</TD>
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<TD>Is thrown when Pattern constructor's argument doesn't conform the Perl5 regular expression syntax.</TD>
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