Class | Line # | Actions | |||
---|---|---|---|---|---|
NullPattern | 16 | 4 | 4 |
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 | import java.util.Hashtable; | |
11 | ||
12 | /** | |
13 | * This pattern matches nothing -- it is found in patterns like (hello|world|) | |
14 | * where a zero-length subelement occurs. | |
15 | */ | |
16 | class NullPattern extends Pattern | |
17 | { | |
18 | 0 | public String toString() |
19 | { | |
20 | 0 | return nextString(); |
21 | } | |
22 | ||
23 | 0 | public int matchInternal(int p, Pthings pt) |
24 | { | |
25 | 0 | return nextMatch(p, pt); |
26 | } | |
27 | ||
28 | 0 | public patInt maxChars() |
29 | { | |
30 | 0 | return new patInt(0); |
31 | } | |
32 | ||
33 | 0 | Pattern clone1(Hashtable h) |
34 | { | |
35 | 0 | return new NullPattern(); |
36 | } | |
37 | } |