1
/* Generated By:JavaCC: Do not edit this line. ParseException.java Version 3.0 */
2
package org.apache.commons.configuration.plist;
5
* This exception is thrown when parse errors are encountered.
6
* You can explicitly create objects of this exception type by
7
* calling the method generateParseException in the generated
10
* You can modify this class to customize your error reporting
11
* mechanisms so long as you retain the public fields.
13
class ParseException extends Exception {
16
* This constructor is used by the method "generateParseException"
17
* in the generated parser. Calling this constructor generates
18
* a new object of this type with the fields "currentToken",
19
* "expectedTokenSequences", and "tokenImage" set. The boolean
20
* flag "specialConstructor" is also set to true to indicate that
21
* this constructor was used to create this object.
22
* This constructor calls its super class with the empty string
23
* to force the "toString" method of parent class "Throwable" to
24
* print the error message in the form:
25
* ParseException: <result of getMessage>
27
public ParseException(Token currentTokenVal,
28
int[][] expectedTokenSequencesVal,
29
String[] tokenImageVal
33
specialConstructor = true;
34
currentToken = currentTokenVal;
35
expectedTokenSequences = expectedTokenSequencesVal;
36
tokenImage = tokenImageVal;
40
* The following constructors are for use by you for whatever
41
* purpose you can think of. Constructing the exception in this
42
* manner makes the exception behave in the normal way - i.e., as
43
* documented in the class "Throwable". The fields "errorToken",
44
* "expectedTokenSequences", and "tokenImage" do not contain
45
* relevant information. The JavaCC generated code does not use
49
public ParseException() {
51
specialConstructor = false;
54
public ParseException(String message) {
56
specialConstructor = false;
60
* This variable determines which constructor was used to create
61
* this object and thereby affects the semantics of the
62
* "getMessage" method (see below).
64
protected boolean specialConstructor;
67
* This is the last token that has been consumed successfully. If
68
* this object has been created due to a parse error, the token
69
* followng this token will (therefore) be the first error token.
71
public Token currentToken;
74
* Each entry in this array is an array of integers. Each array
75
* of integers represents a sequence of tokens (by their ordinal
76
* values) that is expected at this point of the parse.
78
public int[][] expectedTokenSequences;
81
* This is a reference to the "tokenImage" array of the generated
82
* parser within which the parse error occurred. This array is
83
* defined in the generated ...Constants interface.
85
public String[] tokenImage;
88
* This method has the standard behavior when this object has been
89
* created using the standard constructors. Otherwise, it uses
90
* "currentToken" and "expectedTokenSequences" to generate a parse
91
* error message and returns it. If this object has been created
92
* due to a parse error, and you do not catch it (it gets thrown
93
* from the parser), then this method is called during the printing
94
* of the final stack trace, and hence the correct error message
97
public String getMessage() {
98
if (!specialConstructor) {
99
return super.getMessage();
101
String expected = "";
103
for (int i = 0; i < expectedTokenSequences.length; i++) {
104
if (maxSize < expectedTokenSequences[i].length) {
105
maxSize = expectedTokenSequences[i].length;
107
for (int j = 0; j < expectedTokenSequences[i].length; j++) {
108
expected += tokenImage[expectedTokenSequences[i][j]] + " ";
110
if (expectedTokenSequences[i][expectedTokenSequences[i].length - 1] != 0) {
113
expected += eol + " ";
115
String retval = "Encountered \"";
116
Token tok = currentToken.next;
117
for (int i = 0; i < maxSize; i++) {
118
if (i != 0) retval += " ";
120
retval += tokenImage[0];
123
retval += add_escapes(tok.image);
126
retval += "\" at line " + currentToken.next.beginLine + ", column " + currentToken.next.beginColumn;
128
if (expectedTokenSequences.length == 1) {
129
retval += "Was expecting:" + eol + " ";
131
retval += "Was expecting one of:" + eol + " ";
138
* The end of line string for this machine.
140
protected String eol = System.getProperty("line.separator", "\n");
143
* Used to convert raw characters to their escaped version
144
* when these raw version cannot be used as part of an ASCII
147
protected String add_escapes(String str) {
148
StringBuffer retval = new StringBuffer();
150
for (int i = 0; i < str.length(); i++) {
151
switch (str.charAt(i))
156
retval.append("\\b");
159
retval.append("\\t");
162
retval.append("\\n");
165
retval.append("\\f");
168
retval.append("\\r");
171
retval.append("\\\"");
174
retval.append("\\\'");
177
retval.append("\\\\");
180
if ((ch = str.charAt(i)) < 0x20 || ch > 0x7e) {
181
String s = "0000" + Integer.toString(ch, 16);
182
retval.append("\\u" + s.substring(s.length() - 4, s.length()));
189
return retval.toString();