1 package net.sourceforge.pmd.lang.vm.ast;
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5 public class TokenMgrError extends Error {
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13 private static final long serialVersionUID = 1L;
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18 static final int LEXICAL_ERROR = 0;
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23 static final int STATIC_LEXER_ERROR = 1;
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28 static final int INVALID_LEXICAL_STATE = 2;
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33 static final int LOOP_DETECTED = 3;
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38 int errorCode;
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43 protected static final String addEscapes(final String str) {
44 final StringBuffer retval = new StringBuffer();
45 char ch;
46 for (int i = 0; i < str.length(); i++) {
47 switch (str.charAt(i)) {
48 case 0:
49 continue;
50 case '\b':
51 retval.append("\\b");
52 continue;
53 case '\t':
54 retval.append("\\t");
55 continue;
56 case '\n':
57 retval.append("\\n");
58 continue;
59 case '\f':
60 retval.append("\\f");
61 continue;
62 case '\r':
63 retval.append("\\r");
64 continue;
65 case '\"':
66 retval.append("\\\"");
67 continue;
68 case '\'':
69 retval.append("\\\'");
70 continue;
71 case '\\':
72 retval.append("\\\\");
73 continue;
74 default:
75 if ((ch = str.charAt(i)) < 0x20 || ch > 0x7e) {
76 final String s = "0000" + Integer.toString(ch, 16);
77 retval.append("\\u" + s.substring(s.length() - 4, s.length()));
78 }
79 else {
80 retval.append(ch);
81 }
82 continue;
83 }
84 }
85 return retval.toString();
86 }
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95 protected static String LexicalError(final boolean EOFSeen, final int lexState, final int errorLine,
96 final int errorColumn, final String errorAfter, final char curChar) {
97 return ("Lexical error at line "
98 + errorLine
99 + ", column "
100 + errorColumn
101 + ". Encountered: "
102 + (EOFSeen ? "<EOF> " : ("\"" + addEscapes(String.valueOf(curChar)) + "\"") + " (" + (int) curChar
103 + "), ") + "after : \"" + addEscapes(errorAfter) + "\"");
104 }
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114 @Override
115 public String getMessage() {
116 return super.getMessage();
117 }
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123 public TokenMgrError() {
124 }
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126 public TokenMgrError(final String message, final int reason) {
127 super(message);
128 errorCode = reason;
129 }
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131 public TokenMgrError(final boolean EOFSeen, final int lexState, final int errorLine, final int errorColumn,
132 final String errorAfter, final char curChar, final int reason) {
133 this(LexicalError(EOFSeen, lexState, errorLine, errorColumn, errorAfter, curChar), reason);
134 }
135 }