1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
|
/*
* Copyright 2015 Anton Tananaev (anton.tananaev@gmail.com)
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.traccar.helper;
import java.util.regex.Pattern;
public class PatternBuilder {
private final StringBuilder pattern = new StringBuilder();
public interface Builder {
void build(PatternBuilder builder);
}
// eXPRession
public PatternBuilder xpr(String s) {
pattern.append(s);
return this;
}
// GRouP
public PatternBuilder grp(String s) {
return xpr("(?:").xpr(s).xpr(")");
}
// OPtional eXpression
public PatternBuilder opx(String s) {
return xpr("(?:").xpr(s).xpr(")?");
}
// TeXT
public PatternBuilder txt(String s) {
pattern.append(s.replaceAll("([\\\\\\.\\[\\{\\(\\*\\+\\?\\^\\$\\|])", "\\\\$1"));
return this;
}
// OPtional Text
public PatternBuilder opt(String s) {
return xpr("(?:").txt(s).xpr(")?");
}
// NUMber
public PatternBuilder num(String s) {
s = s.replace("dddd", "d{4}").replace("ddd", "d{3}").replace("dd", "d{2}");
s = s.replace("xxxx", "x{4}").replace("xxx", "x{3}").replace("xx", "x{2}");
s = s.replace("d", "\\d").replace("x", "\\p{XDigit}").replaceAll("([\\.])", "\\\\$1");
s = s.replaceAll("\\|$", "\\\\|"); // special case for delimiter
pattern.append(s);
return this;
}
// OPtional Number
public PatternBuilder opn(String s) {
return xpr("(?:").num(s).xpr(")?");
}
public PatternBuilder any() {
pattern.append(".*");
return this;
}
public PatternBuilder not(String s) {
return xpr("[^").txt(s).xpr("]*");
}
// NeXT
public PatternBuilder nxt(String s) {
return not(s).txt(s);
}
// BINary
public PatternBuilder bin(String s) {
pattern.append(s.replaceAll("(\\p{XDigit}{2})", "\\\\$1"));
return this;
}
public PatternBuilder groupBegin() {
return xpr("(?:");
}
public PatternBuilder groupEnd(boolean optional) {
if (optional) {
return xpr(")?");
} else {
return xpr(")");
}
}
public PatternBuilder or() {
return xpr("|");
}
public Pattern compile() {
return Pattern.compile(pattern.toString(), Pattern.DOTALL);
}
@Override
public String toString() {
return pattern.toString();
}
}
|
