001: /* Generated By:JavaCC: Do not edit this line. ParseException.java Version 4.1 */
002: /* JavaCCOptions:KEEP_LINE_COL=null */
003: package org.netbeans.modules.css.parser;
004:
005: /**
006: * This exception is thrown when parse errors are encountered.
007: * You can explicitly create objects of this exception type by
008: * calling the method generateParseException in the generated
009: * parser.
010: *
011: * You can modify this class to customize your error reporting
012: * mechanisms so long as you retain the public fields.
013: */
014: public class ParseException extends Exception {
015:
016: /**
017: * This constructor is used by the method "generateParseException"
018: * in the generated parser. Calling this constructor generates
019: * a new object of this type with the fields "currentToken",
020: * "expectedTokenSequences", and "tokenImage" set. The boolean
021: * flag "specialConstructor" is also set to true to indicate that
022: * this constructor was used to create this object.
023: * This constructor calls its super class with the empty string
024: * to force the "toString" method of parent class "Throwable" to
025: * print the error message in the form:
026: * ParseException: <result of getMessage>
027: */
028: public ParseException(Token currentTokenVal,
029: int[][] expectedTokenSequencesVal, String[] tokenImageVal) {
030: super ("");
031: specialConstructor = true;
032: currentToken = currentTokenVal;
033: expectedTokenSequences = expectedTokenSequencesVal;
034: tokenImage = tokenImageVal;
035: }
036:
037: /**
038: * The following constructors are for use by you for whatever
039: * purpose you can think of. Constructing the exception in this
040: * manner makes the exception behave in the normal way - i.e., as
041: * documented in the class "Throwable". The fields "errorToken",
042: * "expectedTokenSequences", and "tokenImage" do not contain
043: * relevant information. The JavaCC generated code does not use
044: * these constructors.
045: */
046:
047: public ParseException() {
048: super ();
049: specialConstructor = false;
050: }
051:
052: /** Constructor with message. */
053: public ParseException(String message) {
054: super (message);
055: specialConstructor = false;
056: }
057:
058: /**
059: * This variable determines which constructor was used to create
060: * this object and thereby affects the semantics of the
061: * "getMessage" method (see below).
062: */
063: protected boolean specialConstructor;
064:
065: /**
066: * This is the last token that has been consumed successfully. If
067: * this object has been created due to a parse error, the token
068: * followng this token will (therefore) be the first error token.
069: */
070: public Token currentToken;
071:
072: /**
073: * Each entry in this array is an array of integers. Each array
074: * of integers represents a sequence of tokens (by their ordinal
075: * values) that is expected at this point of the parse.
076: */
077: public int[][] expectedTokenSequences;
078:
079: /**
080: * This is a reference to the "tokenImage" array of the generated
081: * parser within which the parse error occurred. This array is
082: * defined in the generated ...Constants interface.
083: */
084: public String[] tokenImage;
085:
086: /**
087: * This method has the standard behavior when this object has been
088: * created using the standard constructors. Otherwise, it uses
089: * "currentToken" and "expectedTokenSequences" to generate a parse
090: * error message and returns it. If this object has been created
091: * due to a parse error, and you do not catch it (it gets thrown
092: * from the parser), then this method is called during the printing
093: * of the final stack trace, and hence the correct error message
094: * gets displayed.
095: */
096: public String getMessage() {
097: if (!specialConstructor) {
098: return super .getMessage();
099: }
100: StringBuffer expected = new StringBuffer();
101: int maxSize = 0;
102: for (int i = 0; i < expectedTokenSequences.length; i++) {
103: if (maxSize < expectedTokenSequences[i].length) {
104: maxSize = expectedTokenSequences[i].length;
105: }
106: for (int j = 0; j < expectedTokenSequences[i].length; j++) {
107: expected.append(
108: tokenImage[expectedTokenSequences[i][j]])
109: .append(' ');
110: }
111: if (expectedTokenSequences[i][expectedTokenSequences[i].length - 1] != 0) {
112: expected.append("...");
113: }
114: expected.append(eol).append(" ");
115: }
116: String retval = "Encountered \"";
117: Token tok = currentToken.next;
118: for (int i = 0; i < maxSize; i++) {
119: if (i != 0)
120: retval += " ";
121: if (tok.kind == 0) {
122: retval += tokenImage[0];
123: break;
124: }
125: retval += " " + tokenImage[tok.kind];
126: retval += " \"";
127: retval += add_escapes(tok.image);
128: retval += " \"";
129: tok = tok.next;
130: }
131: retval += "\" at line " + currentToken.next.beginLine
132: + ", column " + currentToken.next.beginColumn;
133: retval += "." + eol;
134: if (expectedTokenSequences.length == 1) {
135: retval += "Was expecting:" + eol + " ";
136: } else {
137: retval += "Was expecting one of:" + eol + " ";
138: }
139: retval += expected.toString();
140: return retval;
141: }
142:
143: /**
144: * The end of line string for this machine.
145: */
146: protected String eol = System.getProperty("line.separator", "\n");
147:
148: /**
149: * Used to convert raw characters to their escaped version
150: * when these raw version cannot be used as part of an ASCII
151: * string literal.
152: */
153: protected String add_escapes(String str) {
154: StringBuffer retval = new StringBuffer();
155: char ch;
156: for (int i = 0; i < str.length(); i++) {
157: switch (str.charAt(i)) {
158: case 0:
159: continue;
160: case '\b':
161: retval.append("\\b");
162: continue;
163: case '\t':
164: retval.append("\\t");
165: continue;
166: case '\n':
167: retval.append("\\n");
168: continue;
169: case '\f':
170: retval.append("\\f");
171: continue;
172: case '\r':
173: retval.append("\\r");
174: continue;
175: case '\"':
176: retval.append("\\\"");
177: continue;
178: case '\'':
179: retval.append("\\\'");
180: continue;
181: case '\\':
182: retval.append("\\\\");
183: continue;
184: default:
185: if ((ch = str.charAt(i)) < 0x20 || ch > 0x7e) {
186: String s = "0000" + Integer.toString(ch, 16);
187: retval.append("\\u"
188: + s.substring(s.length() - 4, s.length()));
189: } else {
190: retval.append(ch);
191: }
192: continue;
193: }
194: }
195: return retval.toString();
196: }
197:
198: }
199: /* JavaCC - OriginalChecksum=5c94060c77eb87bdf70fbd6adc8669e2 (do not edit this line) */
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