author | dl |
Mon, 02 Nov 2009 17:25:38 -0800 | |
changeset 4110 | ac033ba6ede4 |
parent 1320 | 2412b1562801 |
child 5506 | 202f599c92aa |
permissions | -rw-r--r-- |
2 | 1 |
/* |
1320
2412b1562801
6749308: java.io, java.lang, java.util exception classes don't specify serialVersionUID
chegar
parents:
2
diff
changeset
|
2 |
* Copyright 1999-2008 Sun Microsystems, Inc. All Rights Reserved. |
2 | 3 |
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 |
* |
|
5 |
* This code is free software; you can redistribute it and/or modify it |
|
6 |
* under the terms of the GNU General Public License version 2 only, as |
|
7 |
* published by the Free Software Foundation. Sun designates this |
|
8 |
* particular file as subject to the "Classpath" exception as provided |
|
9 |
* by Sun in the LICENSE file that accompanied this code. |
|
10 |
* |
|
11 |
* This code is distributed in the hope that it will be useful, but WITHOUT |
|
12 |
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
|
13 |
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
|
14 |
* version 2 for more details (a copy is included in the LICENSE file that |
|
15 |
* accompanied this code). |
|
16 |
* |
|
17 |
* You should have received a copy of the GNU General Public License version |
|
18 |
* 2 along with this work; if not, write to the Free Software Foundation, |
|
19 |
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
|
20 |
* |
|
21 |
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
|
22 |
* CA 95054 USA or visit www.sun.com if you need additional information or |
|
23 |
* have any questions. |
|
24 |
*/ |
|
25 |
||
26 |
package java.util.regex; |
|
27 |
||
28 |
import sun.security.action.GetPropertyAction; |
|
29 |
||
30 |
||
31 |
/** |
|
32 |
* Unchecked exception thrown to indicate a syntax error in a |
|
33 |
* regular-expression pattern. |
|
34 |
* |
|
35 |
* @author unascribed |
|
36 |
* @since 1.4 |
|
37 |
* @spec JSR-51 |
|
38 |
*/ |
|
39 |
||
40 |
public class PatternSyntaxException |
|
41 |
extends IllegalArgumentException |
|
42 |
{ |
|
1320
2412b1562801
6749308: java.io, java.lang, java.util exception classes don't specify serialVersionUID
chegar
parents:
2
diff
changeset
|
43 |
private static final long serialVersionUID = -3864639126226059218L; |
2 | 44 |
|
45 |
private final String desc; |
|
46 |
private final String pattern; |
|
47 |
private final int index; |
|
48 |
||
49 |
/** |
|
50 |
* Constructs a new instance of this class. |
|
51 |
* |
|
52 |
* @param desc |
|
53 |
* A description of the error |
|
54 |
* |
|
55 |
* @param regex |
|
56 |
* The erroneous pattern |
|
57 |
* |
|
58 |
* @param index |
|
59 |
* The approximate index in the pattern of the error, |
|
60 |
* or <tt>-1</tt> if the index is not known |
|
61 |
*/ |
|
62 |
public PatternSyntaxException(String desc, String regex, int index) { |
|
63 |
this.desc = desc; |
|
64 |
this.pattern = regex; |
|
65 |
this.index = index; |
|
66 |
} |
|
67 |
||
68 |
/** |
|
69 |
* Retrieves the error index. |
|
70 |
* |
|
71 |
* @return The approximate index in the pattern of the error, |
|
72 |
* or <tt>-1</tt> if the index is not known |
|
73 |
*/ |
|
74 |
public int getIndex() { |
|
75 |
return index; |
|
76 |
} |
|
77 |
||
78 |
/** |
|
79 |
* Retrieves the description of the error. |
|
80 |
* |
|
81 |
* @return The description of the error |
|
82 |
*/ |
|
83 |
public String getDescription() { |
|
84 |
return desc; |
|
85 |
} |
|
86 |
||
87 |
/** |
|
88 |
* Retrieves the erroneous regular-expression pattern. |
|
89 |
* |
|
90 |
* @return The erroneous pattern |
|
91 |
*/ |
|
92 |
public String getPattern() { |
|
93 |
return pattern; |
|
94 |
} |
|
95 |
||
96 |
private static final String nl = |
|
97 |
java.security.AccessController |
|
98 |
.doPrivileged(new GetPropertyAction("line.separator")); |
|
99 |
||
100 |
/** |
|
101 |
* Returns a multi-line string containing the description of the syntax |
|
102 |
* error and its index, the erroneous regular-expression pattern, and a |
|
103 |
* visual indication of the error index within the pattern. |
|
104 |
* |
|
105 |
* @return The full detail message |
|
106 |
*/ |
|
107 |
public String getMessage() { |
|
108 |
StringBuffer sb = new StringBuffer(); |
|
109 |
sb.append(desc); |
|
110 |
if (index >= 0) { |
|
111 |
sb.append(" near index "); |
|
112 |
sb.append(index); |
|
113 |
} |
|
114 |
sb.append(nl); |
|
115 |
sb.append(pattern); |
|
116 |
if (index >= 0) { |
|
117 |
sb.append(nl); |
|
118 |
for (int i = 0; i < index; i++) sb.append(' '); |
|
119 |
sb.append('^'); |
|
120 |
} |
|
121 |
return sb.toString(); |
|
122 |
} |
|
123 |
||
124 |
} |