1 /* Generated By:JavaCC: Do not edit this line. ParseException.java Version 7.0 */
2 /* JavaCCOptions:KEEP_LINE_COLUMN=true */
3 package org.apache.maven.surefire.group.parse;
4
5 /**
6 * This exception is thrown when parse errors are encountered.
7 * You can explicitly create objects of this exception type by
8 * calling the method generateParseException in the generated
9 * parser.
10 *
11 * You can modify this class to customize your error reporting
12 * mechanisms so long as you retain the public fields.
13 */
14 public class ParseException extends Exception {
15
16 /**
17 * The version identifier for this Serializable class.
18 * Increment only if the <i>serialized</i> form of the
19 * class changes.
20 */
21 private static final long serialVersionUID = 1L;
22
23 /**
24 * The end of line string for this machine.
25 */
26 protected static String EOL = System.getProperty("line.separator", "\n");
27
28 /**
29 * This constructor is used by the method "generateParseException"
30 * in the generated parser. Calling this constructor generates
31 * a new object of this type with the fields "currentToken",
32 * "expectedTokenSequences", and "tokenImage" set.
33 */
34 public ParseException(Token currentTokenVal,
35 int[][] expectedTokenSequencesVal,
36 String[] tokenImageVal
37 )
38 {
39 super(initialise(currentTokenVal, expectedTokenSequencesVal, tokenImageVal));
40 currentToken = currentTokenVal;
41 expectedTokenSequences = expectedTokenSequencesVal;
42 tokenImage = tokenImageVal;
43 }
44
45 /**
46 * The following constructors are for use by you for whatever
47 * purpose you can think of. Constructing the exception in this
48 * manner makes the exception behave in the normal way - i.e., as
49 * documented in the class "Throwable". The fields "errorToken",
50 * "expectedTokenSequences", and "tokenImage" do not contain
51 * relevant information. The JavaCC generated code does not use
52 * these constructors.
53 */
54
55 public ParseException() {
56 super();
57 }
58
59 /** Constructor with message. */
60 public ParseException(String message) {
61 super(message);
62 }
63
64
65 /**
66 * This is the last token that has been consumed successfully. If
67 * this object has been created due to a parse error, the token
68 * following this token will (therefore) be the first error token.
69 */
70 public Token currentToken;
71
72 /**
73 * Each entry in this array is an array of integers. Each array
74 * of integers represents a sequence of tokens (by their ordinal
75 * values) that is expected at this point of the parse.
76 */
77 public int[][] expectedTokenSequences;
78
79 /**
80 * This is a reference to the "tokenImage" array of the generated
81 * parser within which the parse error occurred. This array is
82 * defined in the generated ...Constants interface.
83 */
84 public String[] tokenImage;
85
86 /**
87 * It uses "currentToken" and "expectedTokenSequences" to generate a parse
88 * error message and returns it. If this object has been created
89 * due to a parse error, and you do not catch it (it gets thrown
90 * from the parser) the correct error message
91 * gets displayed.
92 */
93 private static String initialise(Token currentToken,
94 int[][] expectedTokenSequences,
95 String[] tokenImage) {
96
97 StringBuilder expected = new StringBuilder();
98 int maxSize = 0;
99 for (int i = 0; i < expectedTokenSequences.length; i++) {
100 if (maxSize < expectedTokenSequences[i].length) {
101 maxSize = expectedTokenSequences[i].length;
102 }
103 for (int j = 0; j < expectedTokenSequences[i].length; j++) {
104 expected.append(tokenImage[expectedTokenSequences[i][j]]).append(' ');
105 }
106 if (expectedTokenSequences[i][expectedTokenSequences[i].length - 1] != 0) {
107 expected.append("...");
108 }
109 expected.append(EOL).append(" ");
110 }
111 String retval = "Encountered \"";
112 Token tok = currentToken.next;
113 for (int i = 0; i < maxSize; i++) {
114 if (i != 0) retval += " ";
115 if (tok.kind == 0) {
116 retval += tokenImage[0];
117 break;
118 }
119 retval += " " + tokenImage[tok.kind];
120 retval += " \"";
121 retval += add_escapes(tok.image);
122 retval += " \"";
123 tok = tok.next;
124 }
125 if (currentToken.next != null) {
126 retval += "\" at line " + currentToken.next.beginLine + ", column " + currentToken.next.beginColumn;
127 }
128 retval += "." + EOL;
129
130
131 if (expectedTokenSequences.length == 0) {
132 // Nothing to add here
133 } else {
134 if (expectedTokenSequences.length == 1) {
135 retval += "Was expecting:" + EOL + " ";
136 } else {
137 retval += "Was expecting one of:" + EOL + " ";
138 }
139 retval += expected.toString();
140 }
141
142 return retval;
143 }
144
145
146 /**
147 * Used to convert raw characters to their escaped version
148 * when these raw version cannot be used as part of an ASCII
149 * string literal.
150 */
151 static String add_escapes(String str) {
152 StringBuilder retval = new StringBuilder();
153 char ch;
154 for (int i = 0; i < str.length(); i++) {
155 switch (str.charAt(i))
156 {
157 case '\b':
158 retval.append("\\b");
159 continue;
160 case '\t':
161 retval.append("\\t");
162 continue;
163 case '\n':
164 retval.append("\\n");
165 continue;
166 case '\f':
167 retval.append("\\f");
168 continue;
169 case '\r':
170 retval.append("\\r");
171 continue;
172 case '\"':
173 retval.append("\\\"");
174 continue;
175 case '\'':
176 retval.append("\\\'");
177 continue;
178 case '\\':
179 retval.append("\\\\");
180 continue;
181 default:
182 if ((ch = str.charAt(i)) < 0x20 || ch > 0x7e) {
183 String s = "0000" + Integer.toString(ch, 16);
184 retval.append("\\u" + s.substring(s.length() - 4, s.length()));
185 } else {
186 retval.append(ch);
187 }
188 continue;
189 }
190 }
191 return retval.toString();
192 }
193
194 }
195 /* JavaCC - OriginalChecksum=d138a0625b673651d4f19949e2d9635e (do not edit this line) */