| Class | Line # | Actions | |||
|---|---|---|---|---|---|
| BackRefRule | 16 | 5 | 5 |
| 1 | // | |
| 2 | // This software is now distributed according to | |
| 3 | // the Lesser Gnu Public License. Please see | |
| 4 | // http://www.gnu.org/copyleft/lesser.txt for | |
| 5 | // the details. | |
| 6 | // -- Happy Computing! | |
| 7 | // | |
| 8 | package com.stevesoft.pat; | |
| 9 | ||
| 10 | /** | |
| 11 | * This method implements the pattern elements $1, $2, etc in a substitution | |
| 12 | * rule. The apply(StringBufferLike sb,RegRes rr) method of this ReplaceRule | |
| 13 | * simply appends the contents of rr.stringMatched(n), where n is the integer | |
| 14 | * supplied to the constructor. | |
| 15 | */ | |
| 16 | public class BackRefRule extends ReplaceRule | |
| 17 | { | |
| 18 | int n; | |
| 19 | ||
| 20 | 0 | public BackRefRule(int n) |
| 21 | { | |
| 22 | 0 | this.n = n; |
| 23 | } | |
| 24 | ||
| 25 | 0 | public void apply(StringBufferLike sb, RegRes res) |
| 26 | { | |
| 27 | 0 | String x = res.stringMatched(n); |
| 28 | 0 | sb.append(x == null ? "" : x); |
| 29 | } | |
| 30 | ||
| 31 | 0 | public String toString1() |
| 32 | { | |
| 33 | 0 | return "$" + n; |
| 34 | } | |
| 35 | ||
| 36 | 0 | public Object clone1() |
| 37 | { | |
| 38 | 0 | return new BackRefRule(n); |
| 39 | } | |
| 40 | } |