1 /* Generated By:JavaCC: Do not edit this line. TokenMgrError.java Version 5.0 */
2 /* JavaCCOptions: */
3 package net.sourceforge.jwebunit.javacc;
4
5 /** Token Manager Error. */
6 public class TokenMgrError extends Error
7 {
8
9 /**
10 * The version identifier for this Serializable class.
11 * Increment only if the <i>serialized</i> form of the
12 * class changes.
13 */
14 private static final long serialVersionUID = 1L;
15
16 /*
17 * Ordinals for various reasons why an Error of this type can be thrown.
18 */
19
20 /**
21 * Lexical error occurred.
22 */
23 static final int LEXICAL_ERROR = 0;
24
25 /**
26 * An attempt was made to create a second instance of a static token manager.
27 */
28 static final int STATIC_LEXER_ERROR = 1;
29
30 /**
31 * Tried to change to an invalid lexical state.
32 */
33 static final int INVALID_LEXICAL_STATE = 2;
34
35 /**
36 * Detected (and bailed out of) an infinite loop in the token manager.
37 */
38 static final int LOOP_DETECTED = 3;
39
40 /**
41 * Indicates the reason why the exception is thrown. It will have
42 * one of the above 4 values.
43 */
44 int errorCode;
45
46 /**
47 * Replaces unprintable characters by their escaped (or unicode escaped)
48 * equivalents in the given string
49 */
50 protected static final String addEscapes(String str) {
51 StringBuffer retval = new StringBuffer();
52 char ch;
53 for (int i = 0; i < str.length(); i++) {
54 switch (str.charAt(i))
55 {
56 case 0 :
57 continue;
58 case '\b':
59 retval.append("\\b");
60 continue;
61 case '\t':
62 retval.append("\\t");
63 continue;
64 case '\n':
65 retval.append("\\n");
66 continue;
67 case '\f':
68 retval.append("\\f");
69 continue;
70 case '\r':
71 retval.append("\\r");
72 continue;
73 case '\"':
74 retval.append("\\\"");
75 continue;
76 case '\'':
77 retval.append("\\\'");
78 continue;
79 case '\\':
80 retval.append("\\\\");
81 continue;
82 default:
83 if ((ch = str.charAt(i)) < 0x20 || ch > 0x7e) {
84 String s = "0000" + Integer.toString(ch, 16);
85 retval.append("\\u" + s.substring(s.length() - 4, s.length()));
86 } else {
87 retval.append(ch);
88 }
89 continue;
90 }
91 }
92 return retval.toString();
93 }
94
95 /**
96 * Returns a detailed message for the Error when it is thrown by the
97 * token manager to indicate a lexical error.
98 * Parameters :
99 * EOFSeen : indicates if EOF caused the lexical error
100 * curLexState : lexical state in which this error occurred
101 * errorLine : line number when the error occurred
102 * errorColumn : column number when the error occurred
103 * errorAfter : prefix that was seen before this error occurred
104 * curchar : the offending character
105 * Note: You can customize the lexical error message by modifying this method.
106 */
107 protected static String LexicalError(boolean EOFSeen, int lexState, int errorLine, int errorColumn, String errorAfter, char curChar) {
108 return("Lexical error at line " +
109 errorLine + ", column " +
110 errorColumn + ". Encountered: " +
111 (EOFSeen ? "<EOF> " : ("\"" + addEscapes(String.valueOf(curChar)) + "\"") + " (" + (int)curChar + "), ") +
112 "after : \"" + addEscapes(errorAfter) + "\"");
113 }
114
115 /**
116 * You can also modify the body of this method to customize your error messages.
117 * For example, cases like LOOP_DETECTED and INVALID_LEXICAL_STATE are not
118 * of end-users concern, so you can return something like :
119 *
120 * "Internal Error : Please file a bug report .... "
121 *
122 * from this method for such cases in the release version of your parser.
123 */
124 public String getMessage() {
125 return super.getMessage();
126 }
127
128 /*
129 * Constructors of various flavors follow.
130 */
131
132 /** No arg constructor. */
133 public TokenMgrError() {
134 }
135
136 /** Constructor with message and reason. */
137 public TokenMgrError(String message, int reason) {
138 super(message);
139 errorCode = reason;
140 }
141
142 /** Full Constructor. */
143 public TokenMgrError(boolean EOFSeen, int lexState, int errorLine, int errorColumn, String errorAfter, char curChar, int reason) {
144 this(LexicalError(EOFSeen, lexState, errorLine, errorColumn, errorAfter, curChar), reason);
145 }
146 }
147 /* JavaCC - OriginalChecksum=bc9f76bcd7d25043f55caa1030a193fc (do not edit this line) */