https://tomcat.apache.org/: Common code shared by multiple Tomcat components
/* Generated By:JavaCC: Do not edit this line. ParseException.java Version 7.0 */
/* JavaCCOptions:KEEP_LINE_COLUMN=true */
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.tomcat.util.json;
This exception is thrown when parse errors are encountered.
You can explicitly create objects of this exception type by
calling the method generateParseException in the generated
parser.
You can modify this class to customize your error reporting
mechanisms so long as you retain the public fields.
/**
* This exception is thrown when parse errors are encountered.
* You can explicitly create objects of this exception type by
* calling the method generateParseException in the generated
* parser.
*
* You can modify this class to customize your error reporting
* mechanisms so long as you retain the public fields.
*/
@SuppressWarnings("all") // Ignore warnings in generated code
public class ParseException extends Exception {
The version identifier for this Serializable class.
Increment only if the serialized form of the
class changes.
/**
* The version identifier for this Serializable class.
* Increment only if the <i>serialized</i> form of the
* class changes.
*/
private static final long serialVersionUID = 1L;
The end of line string for this machine.
/**
* The end of line string for this machine.
*/
protected static String EOL = System.getProperty("line.separator", "\n");
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.
/**
* 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.
*/
public ParseException(Token currentTokenVal,
int[][] expectedTokenSequencesVal,
String[] tokenImageVal
)
{
super(initialise(currentTokenVal, expectedTokenSequencesVal, tokenImageVal));
currentToken = currentTokenVal;
expectedTokenSequences = expectedTokenSequencesVal;
tokenImage = tokenImageVal;
}
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.
/**
* 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() {
super();
}
Constructor with message. /** Constructor with message. */
public ParseException(String message) {
super(message);
}
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.
/**
* 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;
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.
/**
* 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 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.
/**
* 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;
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) the correct error message
gets displayed.
/**
* 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) the correct error message
* gets displayed.
*/
private static String initialise(Token currentToken,
int[][] expectedTokenSequences,
String[] tokenImage) {
StringBuffer expected = new StringBuffer();
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.append(tokenImage[expectedTokenSequences[i][j]]).append(' ');
}
if (expectedTokenSequences[i][expectedTokenSequences[i].length - 1] != 0) {
expected.append("...");
}
expected.append(EOL).append(" ");
}
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 += " " + tokenImage[tok.kind];
retval += " \"";
retval += add_escapes(tok.image);
retval += " \"";
tok = tok.next;
}
retval += "\" at line " + currentToken.next.beginLine + ", column " + currentToken.next.beginColumn;
retval += "." + EOL;
if (expectedTokenSequences.length == 0) {
// Nothing to add here
} else {
if (expectedTokenSequences.length == 1) {
retval += "Was expecting:" + EOL + " ";
} else {
retval += "Was expecting one of:" + EOL + " ";
}
retval += expected.toString();
}
return retval;
}
Used to convert raw characters to their escaped version
when these raw version cannot be used as part of an ASCII
string literal.
/**
* Used to convert raw characters to their escaped version
* when these raw version cannot be used as part of an ASCII
* string literal.
*/
static String add_escapes(String str) {
StringBuffer retval = new StringBuffer();
char ch;
for (int i = 0; i < str.length(); i++) {
switch (str.charAt(i))
{
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();
}
}
/* JavaCC - OriginalChecksum=1ccce09e6dc04d17e33b6d15b9c1f0c3 (do not edit this line) */