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
|
/*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is furnished to do
* so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
package jdk.nashorn.internal.runtime.regexp.joni;
import jdk.nashorn.internal.runtime.regexp.joni.constants.AnchorType;
final class OptAnchorInfo implements AnchorType {
int leftAnchor;
int rightAnchor;
void clear() {
leftAnchor = rightAnchor = 0;
}
void copy(OptAnchorInfo other) {
leftAnchor = other.leftAnchor;
rightAnchor = other.rightAnchor;
}
void concat(OptAnchorInfo left, OptAnchorInfo right, int leftLength, int rightLength) {
leftAnchor = left.leftAnchor;
if (leftLength == 0) leftAnchor |= right.leftAnchor;
rightAnchor = right.rightAnchor;
if (rightLength == 0) rightAnchor |= left.rightAnchor;
}
boolean isSet(int anchor) {
if ((leftAnchor & anchor) != 0) return true;
return (rightAnchor & anchor) != 0;
}
void add(int anchor) {
if (isLeftAnchor(anchor)) {
leftAnchor |= anchor;
} else {
rightAnchor |= anchor;
}
}
void remove(int anchor) {
if (isLeftAnchor(anchor)) {
leftAnchor &= ~anchor;
} else {
rightAnchor &= ~anchor;
}
}
void altMerge(OptAnchorInfo other) {
leftAnchor &= other.leftAnchor;
rightAnchor &= other.rightAnchor;
}
static boolean isLeftAnchor(int anchor) { // make a mask for it ?
return !(anchor == END_BUF || anchor == SEMI_END_BUF ||
anchor == END_LINE || anchor == PREC_READ ||
anchor == PREC_READ_NOT);
}
static String anchorToString(int anchor) {
StringBuffer s = new StringBuffer("[");
if ((anchor & AnchorType.BEGIN_BUF) !=0 ) s.append("begin-buf ");
if ((anchor & AnchorType.BEGIN_LINE) !=0 ) s.append("begin-line ");
if ((anchor & AnchorType.BEGIN_POSITION) !=0 ) s.append("begin-pos ");
if ((anchor & AnchorType.END_BUF) !=0 ) s.append("end-buf ");
if ((anchor & AnchorType.SEMI_END_BUF) !=0 ) s.append("semi-end-buf ");
if ((anchor & AnchorType.END_LINE) !=0 ) s.append("end-line ");
if ((anchor & AnchorType.ANYCHAR_STAR) !=0 ) s.append("anychar-star ");
if ((anchor & AnchorType.ANYCHAR_STAR_ML) !=0 ) s.append("anychar-star-pl ");
s.append("]");
return s.toString();
}
}
|