1 /*
2 * Copyright (c) 1997, 2006, Oracle and/or its affiliates. All rights reserved.
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. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 /* Generated By:JavaCC: Do not edit this line. ParseException.java Version 0.7pre6 */
27 package com.sun.jmx.snmp.IPAcl;
28
29 /**
30 * This exception is thrown when parse errors are encountered.
31 * You can explicitly create objects of this exception type by
32 * calling the method generateParseException in the generated
33 * parser.
34 *
35 * You can modify this class to customize your error reporting
36 * mechanisms so long as you retain the public fields.
37 */
38 class ParseException extends Exception {
39 private static final long serialVersionUID = -3695190720704845876L;
40
41 /**
42 * This constructor is used by the method "generateParseException"
43 * in the generated parser. Calling this constructor generates
44 * a new object of this type with the fields "currentToken",
45 * "expectedTokenSequences", and "tokenImage" set. The boolean
46 * flag "specialConstructor" is also set to true to indicate that
47 * this constructor was used to create this object.
48 * This constructor calls its super class with the empty string
49 * to force the "toString" method of parent class "Throwable" to
50 * print the error message in the form:
51 * ParseException: <result of getMessage>
52 */
53 public ParseException(Token currentTokenVal,
54 int[][] expectedTokenSequencesVal,
55 String[] tokenImageVal
56 )
57 {
58 super("");
59 specialConstructor = true;
60 currentToken = currentTokenVal;
61 expectedTokenSequences = expectedTokenSequencesVal;
62 tokenImage = tokenImageVal;
63 }
64
65 /**
66 * The following constructors are for use by you for whatever
67 * purpose you can think of. Constructing the exception in this
68 * manner makes the exception behave in the normal way - i.e., as
69 * documented in the class "Throwable". The fields "errorToken",
70 * "expectedTokenSequences", and "tokenImage" do not contain
71 * relevant information. The JavaCC generated code does not use
72 * these constructors.
73 */
74
75 public ParseException() {
76 super();
77 specialConstructor = false;
78 }
79
80 public ParseException(String message) {
81 super(message);
82 specialConstructor = false;
83 }
84
85 /**
86 * This variable determines which constructor was used to create
87 * this object and thereby affects the semantics of the
88 * "getMessage" method (see below).
89 */
90 protected boolean specialConstructor;
91
92 /**
93 * This is the last token that has been consumed successfully. If
94 * this object has been created due to a parse error, the token
95 * followng this token will (therefore) be the first error token.
96 */
97 public Token currentToken;
98
99 /**
100 * Each entry in this array is an array of integers. Each array
101 * of integers represents a sequence of tokens (by their ordinal
102 * values) that is expected at this point of the parse.
103 */
104 public int[][] expectedTokenSequences;
105
106 /**
107 * This is a reference to the "tokenImage" array of the generated
108 * parser within which the parse error occurred. This array is
109 * defined in the generated ...Constants interface.
110 */
111 public String[] tokenImage;
112
113 /**
114 * This method has the standard behavior when this object has been
115 * created using the standard constructors. Otherwise, it uses
116 * "currentToken" and "expectedTokenSequences" to generate a parse
117 * error message and returns it. If this object has been created
118 * due to a parse error, and you do not catch it (it gets thrown
119 * from the parser), then this method is called during the printing
120 * of the final stack trace, and hence the correct error message
121 * gets displayed.
122 */
123 public String getMessage() {
124 if (!specialConstructor) {
125 return super.getMessage();
126 }
127 String expected = "";
128 int maxSize = 0;
129 for (int i = 0; i < expectedTokenSequences.length; i++) {
130 if (maxSize < expectedTokenSequences[i].length) {
131 maxSize = expectedTokenSequences[i].length;
132 }
133 for (int j = 0; j < expectedTokenSequences[i].length; j++) {
134 expected += tokenImage[expectedTokenSequences[i][j]] + " ";
135 }
136 if (expectedTokenSequences[i][expectedTokenSequences[i].length - 1] != 0) {
137 expected += "...";
138 }
139 expected += eol + " ";
140 }
141 String retval = "Encountered \"";
142 Token tok = currentToken.next;
143 for (int i = 0; i < maxSize; i++) {
144 if (i != 0) retval += " ";
145 if (tok.kind == 0) {
146 retval += tokenImage[0];
147 break;
148 }
149 retval += add_escapes(tok.image);
150 tok = tok.next;
151 }
152 retval += "\" at line " + currentToken.next.beginLine + ", column " + currentToken.next.beginColumn + "." + eol;
153 if (expectedTokenSequences.length == 1) {
154 retval += "Was expecting:" + eol + " ";
155 } else {
156 retval += "Was expecting one of:" + eol + " ";
157 }
158 retval += expected;
159 return retval;
160 }
161
162 /**
163 * The end of line string for this machine.
164 */
165 protected String eol = System.getProperty("line.separator", "\n");
166
167 /**
168 * Used to convert raw characters to their escaped version
169 * when these raw version cannot be used as part of an ASCII
170 * string literal.
171 */
172 protected String add_escapes(String str) {
173 StringBuffer retval = new StringBuffer();
174 char ch;
175 for (int i = 0; i < str.length(); i++) {
176 switch (str.charAt(i))
177 {
178 case 0 :
179 continue;
180 case '\b':
181 retval.append("\\b");
182 continue;
183 case '\t':
184 retval.append("\\t");
185 continue;
186 case '\n':
187 retval.append("\\n");
188 continue;
189 case '\f':
190 retval.append("\\f");
191 continue;
192 case '\r':
193 retval.append("\\r");
194 continue;
195 case '\"':
196 retval.append("\\\"");
197 continue;
198 case '\'':
199 retval.append("\\\'");
200 continue;
201 case '\\':
202 retval.append("\\\\");
203 continue;
204 default:
205 if ((ch = str.charAt(i)) < 0x20 || ch > 0x7e) {
206 String s = "0000" + Integer.toString(ch, 16);
207 retval.append("\\u" + s.substring(s.length() - 4, s.length()));
208 } else {
209 retval.append(ch);
210 }
211 continue;
212 }
213 }
214 return retval.toString();
215 }
216
217 }