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1   /* Generated By:JavaCC: Do not edit this line. TokenMgrError.java Version 3.0 *
2    *
3    * !!!MODIFIED BY DMITRI PLOTNIKOV - DO NOT REGENERATE!!!
4    */
5   package org.apache.commons.jxpath.ri.parser;
6   
7   public class TokenMgrError extends Error
8   {
9      /*
10      * Ordinals for various reasons why an Error of this type can be thrown.
11      */
12  
13     /**
14      * Lexical error occured.
15      */
16     static final int LEXICAL_ERROR = 0;
17  
18     /**
19      * An attempt wass made to create a second instance of a static token manager.
20      */
21     static final int STATIC_LEXER_ERROR = 1;
22  
23     /**
24      * Tried to change to an invalid lexical state.
25      */
26     static final int INVALID_LEXICAL_STATE = 2;
27  
28     /**
29      * Detected (and bailed out of) an infinite loop in the token manager.
30      */
31     static final int LOOP_DETECTED = 3;
32  
33     /**
34      * Indicates the reason why the exception is thrown. It will have
35      * one of the above 4 values.
36      */
37     int errorCode;
38  
39     /**
40      * Replaces unprintable characters by their espaced (or unicode escaped)
41      * equivalents in the given string
42      */
43     public static final String addEscapes(String str) {
44        StringBuffer retval = new StringBuffer();
45        char ch;
46        for (int i = 0; i < str.length(); i++) {
47          switch (str.charAt(i))
48          {
49             case 0 :
50                continue;
51             case '\b':
52                retval.append("\\b");
53                continue;
54             case '\t':
55                retval.append("\\t");
56                continue;
57             case '\n':
58                retval.append("\\n");
59                continue;
60             case '\f':
61                retval.append("\\f");
62                continue;
63             case '\r':
64                retval.append("\\r");
65                continue;
66             case '\"':
67                retval.append("\\\"");
68                continue;
69             case '\'':
70                retval.append("\\\'");
71                continue;
72             case '\\':
73                retval.append("\\\\");
74                continue;
75             default:
76                if ((ch = str.charAt(i)) < 0x20 || ch > 0x7e) {
77                   String s = "0000" + Integer.toString(ch, 16);
78                   retval.append("\\u" + s.substring(s.length() - 4, s.length()));
79                } else {
80                   retval.append(ch);
81                }
82                continue;
83          }
84        }
85        return retval.toString();
86     }
87  
88     /**
89      * Returns a detailed message for the Error when it is thrown by the
90      * token manager to indicate a lexical error.
91      * Parameters :
92      *    EOFSeen     : indicates if EOF caused the lexicl error
93      *    curLexState : lexical state in which this error occured
94      *    errorLine   : line number when the error occured
95      *    errorColumn : column number when the error occured
96      *    errorAfter  : prefix that was seen before this error occured
97      *    curchar     : the offending character
98      * Note: You can customize the lexical error message by modifying this method.
99      */
100    protected static String LexicalError(boolean EOFSeen, int lexState, int errorLine, int errorColumn, String errorAfter, char curChar) {
101       return("Lexical error at line " +
102            errorLine + ", column " +
103            errorColumn + ".  Encountered: " +
104            (EOFSeen ? "<EOF> " : ("\"" + addEscapes(String.valueOf(curChar)) + "\"") + " (" + (int)curChar + "), ") +
105            "after : \"" + addEscapes(errorAfter) + "\"");
106    }
107 
108    /**
109     * You can also modify the body of this method to customize your error messages.
110     * For example, cases like LOOP_DETECTED and INVALID_LEXICAL_STATE are not
111     * of end-users concern, so you can return something like :
112     *
113     *     "Internal Error : Please file a bug report .... "
114     *
115     * from this method for such cases in the release version of your parser.
116     */
117    public String getMessage() {
118       return super.getMessage();
119    }
120 
121    /*
122     * Constructors of various flavors follow.
123     */
124 
125    public TokenMgrError() {
126    }
127 
128    public TokenMgrError(String message, int reason) {
129       super(message);
130       errorCode = reason;
131    }
132 
133    public TokenMgrError(boolean EOFSeen, int lexState, int errorLine, int errorColumn, String errorAfter, char curChar, int reason) {
134       this(LexicalError(EOFSeen, lexState, errorLine, errorColumn, errorAfter, curChar), reason);
135 
136       // ADDED BY ME FROM THIS POINT TO THE EOF - DMITRI PLOTNIKOV
137       position = errorColumn - 1;
138       character = curChar;
139    }
140 
141 
142    private int position;
143    private char character;
144 
145 
146    public int getPosition(){
147     return position;
148    }
149 
150    public char getCharacter(){
151     return character;
152    }
153 }