2 // This software is now distributed according to
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3 // the Lesser Gnu Public License. Please see
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4 // http://www.gnu.org/copyleft/lesser.txt for
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6 // -- Happy Computing!
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8 package com.stevesoft.pat;
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10 /** This method implements the pattern elements $1, $2, etc in
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11 a substitution rule. The apply(StringBufferLike sb,RegRes rr) method of this ReplaceRule
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12 simply appends the contents of rr.stringMatched(n), where n is
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13 the integer supplied to the constructor. */
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14 public class BackRefRule
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18 public BackRefRule(int n)
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23 public void apply(StringBufferLike sb, RegRes res)
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25 String x = res.stringMatched(n);
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26 sb.append(x == null ? "" : x);
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29 public String toString1()
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34 public Object clone1()
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36 return new BackRefRule(n);
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