- From: Yves Lafon via cvs-syncmail <cvsmail@w3.org>
- Date: Thu, 20 Mar 2008 12:17:13 +0000
- To: www-validator-cvs@w3.org
Update of /sources/public/2002/css-validator/org/w3c/css/parser/analyzer
In directory hutz:/tmp/cvs-serv18638
Modified Files:
ParseException.java
Log Message:
optimization, stacktrace is not needed and consumes time.
(could be re-added for debug purposes only)
also for message creation, now using StringBuilder
Index: ParseException.java
===================================================================
RCS file: /sources/public/2002/css-validator/org/w3c/css/parser/analyzer/ParseException.java,v
retrieving revision 1.4
retrieving revision 1.5
diff -u -d -r1.4 -r1.5
--- ParseException.java 14 Sep 2005 15:14:18 -0000 1.4
+++ ParseException.java 20 Mar 2008 12:17:11 -0000 1.5
@@ -12,181 +12,190 @@
*/
public class ParseException extends Exception {
- /**
- * This constructor is used by the method "generateParseException"
- * in the generated parser. Calling this constructor generates
- * a new object of this type with the fields "currentToken",
- * "expectedTokenSequences", and "tokenImage" set. The boolean
- * flag "specialConstructor" is also set to true to indicate that
- * this constructor was used to create this object.
- * This constructor calls its super class with the empty string
- * to force the "toString" method of parent class "Throwable" to
- * print the error message in the form:
- * ParseException: <result of getMessage>
- */
- public ParseException(Token currentTokenVal,
- int[][] expectedTokenSequencesVal,
- String[] tokenImageVal
- )
- {
- super("");
- specialConstructor = true;
- currentToken = currentTokenVal;
- expectedTokenSequences = expectedTokenSequencesVal;
- tokenImage = tokenImageVal;
- }
+ public final Throwable fillInStackTrace() {
+ return this;
+ }
- /**
- * The following constructors are for use by you for whatever
- * purpose you can think of. Constructing the exception in this
- * manner makes the exception behave in the normal way - i.e., as
- * documented in the class "Throwable". The fields "errorToken",
- * "expectedTokenSequences", and "tokenImage" do not contain
- * relevant information. The JavaCC generated code does not use
- * these constructors.
- */
+ /**
+ * This constructor is used by the method "generateParseException"
+ * in the generated parser. Calling this constructor generates
+ * a new object of this type with the fields "currentToken",
+ * "expectedTokenSequences", and "tokenImage" set. The boolean
+ * flag "specialConstructor" is also set to true to indicate that
+ * this constructor was used to create this object.
+ * This constructor calls its super class with the empty string
+ * to force the "toString" method of parent class "Throwable" to
+ * print the error message in the form:
+ * ParseException: <result of getMessage>
+ */
+ public ParseException(Token currentTokenVal,
+ int[][] expectedTokenSequencesVal,
+ String[] tokenImageVal) {
+ super("");
+ specialConstructor = true;
+ currentToken = currentTokenVal;
+ expectedTokenSequences = expectedTokenSequencesVal;
+ tokenImage = tokenImageVal;
+ }
- public ParseException() {
- super();
- specialConstructor = false;
- }
+ /**
+ * The following constructors are for use by you for whatever
+ * purpose you can think of. Constructing the exception in this
+ * manner makes the exception behave in the normal way - i.e., as
+ * documented in the class "Throwable". The fields "errorToken",
+ * "expectedTokenSequences", and "tokenImage" do not contain
+ * relevant information. The JavaCC generated code does not use
+ * these constructors.
+ */
- public ParseException(String message) {
- super(message);
- specialConstructor = false;
- }
+ public ParseException() {
+ super();
+ specialConstructor = false;
+ }
- /**
- * This variable determines which constructor was used to create
- * this object and thereby affects the semantics of the
- * "getMessage" method (see below).
- */
- protected boolean specialConstructor;
+ public ParseException(String message) {
+ super(message);
+ specialConstructor = false;
+ }
- /**
- * This is the last token that has been consumed successfully. If
- * this object has been created due to a parse error, the token
- * followng this token will (therefore) be the first error token.
- */
- public Token currentToken;
+ /**
+ * This variable determines which constructor was used to create
+ * this object and thereby affects the semantics of the
+ * "getMessage" method (see below).
+ */
+ protected boolean specialConstructor;
- /**
- * Each entry in this array is an array of integers. Each array
- * of integers represents a sequence of tokens (by their ordinal
- * values) that is expected at this point of the parse.
- */
- public int[][] expectedTokenSequences;
+ /**
+ * This is the last token that has been consumed successfully. If
+ * this object has been created due to a parse error, the token
+ * followng this token will (therefore) be the first error token.
+ */
+ public Token currentToken;
- /**
- * This is a reference to the "tokenImage" array of the generated
- * parser within which the parse error occurred. This array is
- * defined in the generated ...Constants interface.
- */
- public String[] tokenImage;
+ /**
+ * Each entry in this array is an array of integers. Each array
+ * of integers represents a sequence of tokens (by their ordinal
+ * values) that is expected at this point of the parse.
+ */
+ public int[][] expectedTokenSequences;
- /**
- * This method has the standard behavior when this object has been
- * created using the standard constructors. Otherwise, it uses
- * "currentToken" and "expectedTokenSequences" to generate a parse
- * error message and returns it. If this object has been created
- * due to a parse error, and you do not catch it (it gets thrown
- * from the parser), then this method is called during the printing
- * of the final stack trace, and hence the correct error message
- * gets displayed.
- */
- public String getMessage() {
- if (!specialConstructor) {
- return super.getMessage();
- }
- String expected = "";
- int maxSize = 0;
- for (int i = 0; i < expectedTokenSequences.length; i++) {
- if (maxSize < expectedTokenSequences[i].length) {
- maxSize = expectedTokenSequences[i].length;
- }
- for (int j = 0; j < expectedTokenSequences[i].length; j++) {
- expected += tokenImage[expectedTokenSequences[i][j]] + " ";
- }
- if (expectedTokenSequences[i][expectedTokenSequences[i].length - 1] != 0) {
- expected += "...";
- }
- expected += eol + " ";
- }
- String retval = "Encountered \"";
- Token tok = currentToken.next;
- for (int i = 0; i < maxSize; i++) {
- if (i != 0) retval += " ";
- if (tok.kind == 0) {
- retval += tokenImage[0];
- break;
- }
- retval += add_escapes(tok.image);
- tok = tok.next;
- }
- retval += "\" at line " + currentToken.next.beginLine + ", column " + currentToken.next.beginColumn;
- retval += "." + eol;
- if (expectedTokenSequences.length == 1) {
- retval += "Was expecting:" + eol + " ";
- } else {
- retval += "Was expecting one of:" + eol + " ";
+ /**
+ * This is a reference to the "tokenImage" array of the generated
+ * parser within which the parse error occurred. This array is
+ * defined in the generated ...Constants interface.
+ */
+ public String[] tokenImage;
+
+ /**
+ * This method has the standard behavior when this object has been
+ * created using the standard constructors. Otherwise, it uses
+ * "currentToken" and "expectedTokenSequences" to generate a parse
+ * error message and returns it. If this object has been created
+ * due to a parse error, and you do not catch it (it gets thrown
+ * from the parser), then this method is called during the printing
+ * of the final stack trace, and hence the correct error message
+ * gets displayed.
+ */
+ public String getMessage() {
+ if (!specialConstructor) {
+ return super.getMessage();
+ }
+ StringBuilder expected = new StringBuilder();
+ int maxSize = 0;
+ int tokenlength = expectedTokenSequences.length;
+ for (int i = 0; i < tokenlength; i++) {
+ int ets[] = expectedTokenSequences[i];
+ int etslength = ets.length;
+ if (maxSize < etslength) {
+ maxSize = etslength;
+ }
+ for (int j = 0; j < etslength; j++) {
+ expected.append(tokenImage[ets[j]]).append(' ');
+ }
+ if (ets[etslength - 1] != 0) {
+ expected.append("...");
+ }
+ expected.append(eol).append(" ");
+ }
+ StringBuilder retval = new StringBuilder(128);
+ retval.append("Encountered \"");
+ Token tok = currentToken.next;
+ for (int i = 0; i < maxSize; i++) {
+ if (i != 0) {
+ retval.append(' ');
+ }
+ if (tok.kind == 0) {
+ retval.append(tokenImage[0]);
+ break;
+ }
+ retval.append(add_escapes(tok.image));
+ tok = tok.next;
+ }
+ retval.append("\" at line ").append(currentToken.next.beginLine);
+ retval.append(", column ").append(currentToken.next.beginColumn);
+ retval.append('.').append(eol);
+ if (expectedTokenSequences.length == 1) {
+ retval.append("Was expecting:").append(eol).append(" ");
+ } else {
+ retval.append("Was expecting one of:").append(eol).append(" ");
+ }
+ retval.append(expected);
+ return retval.toString();
}
- retval += expected;
- return retval;
- }
- /**
- * The end of line string for this machine.
- */
- protected String eol = System.getProperty("line.separator", "\n");
+ /**
+ * The end of line string for this machine.
+ */
+ protected String eol = System.getProperty("line.separator", "\n");
- /**
- * Used to convert raw characters to their escaped version
- * when these raw version cannot be used as part of an ASCII
- * string literal.
- */
- protected String add_escapes(String str) {
- StringBuffer retval = new StringBuffer();
- char ch;
- for (int i = 0; i < str.length(); i++) {
- switch (str.charAt(i))
- {
- case 0 :
- continue;
- case '\b':
- retval.append("\\b");
- continue;
- case '\t':
- retval.append("\\t");
- continue;
- case '\n':
- retval.append("\\n");
- continue;
- case '\f':
- retval.append("\\f");
- continue;
- case '\r':
- retval.append("\\r");
- continue;
- case '\"':
- retval.append("\\\"");
- continue;
- case '\'':
- retval.append("\\\'");
- continue;
- case '\\':
- retval.append("\\\\");
- continue;
- default:
- if ((ch = str.charAt(i)) < 0x20 || ch > 0x7e) {
- String s = "0000" + Integer.toString(ch, 16);
- retval.append("\\u" + s.substring(s.length() - 4, s.length()));
- } else {
- retval.append(ch);
- }
- continue;
- }
- }
- return retval.toString();
- }
+ /**
+ * Used to convert raw characters to their escaped version
+ * when these raw version cannot be used as part of an ASCII
+ * string literal.
+ */
+ protected String add_escapes(String str) {
+ StringBuilder retval = new StringBuilder();
+ char ch;
+ for (int i = 0; i < str.length(); i++) {
+ switch (str.charAt(i))
+ {
+ case 0 :
+ continue;
+ case '\b':
+ retval.append("\\b");
+ continue;
+ case '\t':
+ retval.append("\\t");
+ continue;
+ case '\n':
+ retval.append("\\n");
+ continue;
+ case '\f':
+ retval.append("\\f");
+ continue;
+ case '\r':
+ retval.append("\\r");
+ continue;
+ case '\"':
+ retval.append("\\\"");
+ continue;
+ case '\'':
+ retval.append("\\\'");
+ continue;
+ case '\\':
+ retval.append("\\\\");
+ continue;
+ default:
+ if ((ch = str.charAt(i)) < 0x20 || ch > 0x7e) {
+ String s = "0000" + Integer.toString(ch, 16);
+ retval.append("\\u" + s.substring(s.length() - 4, s.length()));
+ } else {
+ retval.append(ch);
+ }
+ continue;
+ }
+ }
+ return retval.toString();
+ }
}
Received on Thursday, 20 March 2008 12:17:44 UTC