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1   /* Generated By:JavaCC: Do not edit this line. TokenMgrError.java Version 4.1 */
2   /* JavaCCOptions: */
3   /** 
4    * JSP Parser for PMD.
5    * @author Pieter ? Application Engineers NV/SA ? http://www.ae.be
6    */
7   
8   package net.sourceforge.pmd.jsp.ast;
9   
10  /** Token Manager Error. */
11  public class TokenMgrError extends RuntimeException
12  {
13  
14     /*
15      * Ordinals for various reasons why an Error of this type can be thrown.
16      */
17  
18     /**
19      * Lexical error occurred.
20      */
21     static final int LEXICAL_ERROR = 0;
22  
23     /**
24      * An attempt was made to create a second instance of a static token manager.
25      */
26     static final int STATIC_LEXER_ERROR = 1;
27  
28     /**
29      * Tried to change to an invalid lexical state.
30      */
31     static final int INVALID_LEXICAL_STATE = 2;
32  
33     /**
34      * Detected (and bailed out of) an infinite loop in the token manager.
35      */
36     static final int LOOP_DETECTED = 3;
37  
38     /**
39      * Indicates the reason why the exception is thrown. It will have
40      * one of the above 4 values.
41      */
42     int errorCode;
43  
44     /**
45      * Replaces unprintable characters by their escaped (or unicode escaped)
46      * equivalents in the given string
47      */
48     protected static final String addEscapes(String str) {
49        StringBuffer retval = new StringBuffer();
50        char ch;
51        for (int i = 0; i < str.length(); i++) {
52          switch (str.charAt(i))
53          {
54             case 0 :
55                continue;
56             case '\b':
57                retval.append("\\b");
58                continue;
59             case '\t':
60                retval.append("\\t");
61                continue;
62             case '\n':
63                retval.append("\\n");
64                continue;
65             case '\f':
66                retval.append("\\f");
67                continue;
68             case '\r':
69                retval.append("\\r");
70                continue;
71             case '\"':
72                retval.append("\\\"");
73                continue;
74             case '\'':
75                retval.append("\\\'");
76                continue;
77             case '\\':
78                retval.append("\\\\");
79                continue;
80             default:
81                if ((ch = str.charAt(i)) < 0x20 || ch > 0x7e) {
82                   String s = "0000" + Integer.toString(ch, 16);
83                   retval.append("\\u" + s.substring(s.length() - 4, s.length()));
84                } else {
85                   retval.append(ch);
86                }
87                continue;
88          }
89        }
90        return retval.toString();
91     }
92  
93     /**
94      * Returns a detailed message for the Error when it is thrown by the
95      * token manager to indicate a lexical error.
96      * Parameters :
97      *    EOFSeen     : indicates if EOF caused the lexical error
98      *    curLexState : lexical state in which this error occurred
99      *    errorLine   : line number when the error occurred
100     *    errorColumn : column number when the error occurred
101     *    errorAfter  : prefix that was seen before this error occurred
102     *    curchar     : the offending character
103     * Note: You can customize the lexical error message by modifying this method.
104     */
105    protected static String LexicalError(boolean EOFSeen, int lexState, int errorLine, int errorColumn, String errorAfter, char curChar) {
106       return("Lexical error at line " +
107            errorLine + ", column " +
108            errorColumn + ".  Encountered: " +
109            (EOFSeen ? "<EOF> " : ("\"" + addEscapes(String.valueOf(curChar)) + "\"") + " (" + (int)curChar + "), ") +
110            "after : \"" + addEscapes(errorAfter) + "\"");
111    }
112 
113    /**
114     * You can also modify the body of this method to customize your error messages.
115     * For example, cases like LOOP_DETECTED and INVALID_LEXICAL_STATE are not
116     * of end-users concern, so you can return something like :
117     *
118     *     "Internal Error : Please file a bug report .... "
119     *
120     * from this method for such cases in the release version of your parser.
121     */
122    public String getMessage() {
123       return super.getMessage();
124    }
125 
126    /*
127     * Constructors of various flavors follow.
128     */
129 
130    /** No arg constructor. */
131    public TokenMgrError() {
132    }
133 
134    /** Constructor with message and reason. */
135    public TokenMgrError(String message, int reason) {
136       super(message);
137       errorCode = reason;
138    }
139 
140    /** Full Constructor. */
141    public TokenMgrError(boolean EOFSeen, int lexState, int errorLine, int errorColumn, String errorAfter, char curChar, int reason) {
142       this(LexicalError(EOFSeen, lexState, errorLine, errorColumn, errorAfter, curChar), reason);
143    }
144 }
145 /* JavaCC - OriginalChecksum=56dfce4188771884defbd50c7c708c54 (do not edit this line) */