1 /* Generated By:JavaCC: Do not edit this line. ParseException.java Version 5.0 */
2 /* JavaCCOptions:KEEP_LINE_COL=null */
3 package org.apache.commons.configuration2.plist;
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 * This constructor is used by the method "generateParseException"
25 * in the generated parser. Calling this constructor generates
26 * a new object of this type with the fields "currentToken",
27 * "expectedTokenSequences", and "tokenImage" set.
28 */
29 public ParseException(Token currentTokenVal,
30 int[][] expectedTokenSequencesVal,
31 String[] tokenImageVal
32 )
33 {
34 super(initialise(currentTokenVal, expectedTokenSequencesVal, tokenImageVal));
35 currentToken = currentTokenVal;
36 expectedTokenSequences = expectedTokenSequencesVal;
37 tokenImage = tokenImageVal;
38 }
39
40 /**
41 * The following constructors are for use by you for whatever
42 * purpose you can think of. Constructing the exception in this
43 * manner makes the exception behave in the normal way - i.e., as
44 * documented in the class "Throwable". The fields "errorToken",
45 * "expectedTokenSequences", and "tokenImage" do not contain
46 * relevant information. The JavaCC generated code does not use
47 * these constructors.
48 */
49
50 public ParseException() {
51 super();
52 }
53
54 /** Constructor with message. */
55 public ParseException(String message) {
56 super(message);
57 }
58
59
60 /**
61 * This is the last token that has been consumed successfully. If
62 * this object has been created due to a parse error, the token
63 * followng this token will (therefore) be the first error token.
64 */
65 public Token currentToken;
66
67 /**
68 * Each entry in this array is an array of integers. Each array
69 * of integers represents a sequence of tokens (by their ordinal
70 * values) that is expected at this point of the parse.
71 */
72 public int[][] expectedTokenSequences;
73
74 /**
75 * This is a reference to the "tokenImage" array of the generated
76 * parser within which the parse error occurred. This array is
77 * defined in the generated ...Constants interface.
78 */
79 public String[] tokenImage;
80
81 /**
82 * It uses "currentToken" and "expectedTokenSequences" to generate a parse
83 * error message and returns it. If this object has been created
84 * due to a parse error, and you do not catch it (it gets thrown
85 * from the parser) the correct error message
86 * gets displayed.
87 */
88 private static String initialise(Token currentToken,
89 int[][] expectedTokenSequences,
90 String[] tokenImage) {
91 String eol = System.getProperty("line.separator", "\n");
92 StringBuffer expected = new StringBuffer();
93 int maxSize = 0;
94 for (int i = 0; i < expectedTokenSequences.length; i++) {
95 if (maxSize < expectedTokenSequences[i].length) {
96 maxSize = expectedTokenSequences[i].length;
97 }
98 for (int j = 0; j < expectedTokenSequences[i].length; j++) {
99 expected.append(tokenImage[expectedTokenSequences[i][j]]).append(' ');
100 }
101 if (expectedTokenSequences[i][expectedTokenSequences[i].length - 1] != 0) {
102 expected.append("...");
103 }
104 expected.append(eol).append(" ");
105 }
106 String retval = "Encountered \"";
107 Token tok = currentToken.next;
108 for (int i = 0; i < maxSize; i++) {
109 if (i != 0) retval += " ";
110 if (tok.kind == 0) {
111 retval += tokenImage[0];
112 break;
113 }
114 retval += " " + tokenImage[tok.kind];
115 retval += " \"";
116 retval += add_escapes(tok.image);
117 retval += " \"";
118 tok = tok.next;
119 }
120 retval += "\" at line " + currentToken.next.beginLine + ", column " + currentToken.next.beginColumn;
121 retval += "." + eol;
122 if (expectedTokenSequences.length == 1) {
123 retval += "Was expecting:" + eol + " ";
124 } else {
125 retval += "Was expecting one of:" + eol + " ";
126 }
127 retval += expected.toString();
128 return retval;
129 }
130
131 /**
132 * The end of line string for this machine.
133 */
134 protected String eol = System.getProperty("line.separator", "\n");
135
136 /**
137 * Used to convert raw characters to their escaped version
138 * when these raw version cannot be used as part of an ASCII
139 * string literal.
140 */
141 static String add_escapes(String str) {
142 StringBuffer retval = new StringBuffer();
143 char ch;
144 for (int i = 0; i < str.length(); i++) {
145 switch (str.charAt(i))
146 {
147 case 0 :
148 continue;
149 case '\b':
150 retval.append("\\b");
151 continue;
152 case '\t':
153 retval.append("\\t");
154 continue;
155 case '\n':
156 retval.append("\\n");
157 continue;
158 case '\f':
159 retval.append("\\f");
160 continue;
161 case '\r':
162 retval.append("\\r");
163 continue;
164 case '\"':
165 retval.append("\\\"");
166 continue;
167 case '\'':
168 retval.append("\\\'");
169 continue;
170 case '\\':
171 retval.append("\\\\");
172 continue;
173 default:
174 if ((ch = str.charAt(i)) < 0x20 || ch > 0x7e) {
175 String s = "0000" + Integer.toString(ch, 16);
176 retval.append("\\u" + s.substring(s.length() - 4, s.length()));
177 } else {
178 retval.append(ch);
179 }
180 continue;
181 }
182 }
183 return retval.toString();
184 }
185
186 }
187 /* JavaCC - OriginalChecksum=511e60e8dc5275c2349a384d892ee0da (do not edit this line) */