xjavadoc

Class ParseException

public class ParseException extends Exception

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.
Field Summary
TokencurrentToken
This is the last token that has been consumed successfully.
protected Stringeol
The end of line string for this machine.
int[][]expectedTokenSequences
Each entry in this array is an array of integers.
static longserialVersionUID
The version identifier for this Serializable class.
String[]tokenImage
This is a reference to the "tokenImage" array of the generated parser within which the parse error occurred.
Constructor Summary
ParseException(Token currentTokenVal, int[][] expectedTokenSequencesVal, String[] tokenImageVal)
This constructor is used by the method "generateParseException" in the generated parser.
ParseException()
The following constructors are for use by you for whatever purpose you can think of.
ParseException(String message)
Constructor with message.
Method Summary
static Stringadd_escapes(String str)
Used to convert raw characters to their escaped version when these raw version cannot be used as part of an ASCII string literal.
static Stringinitialise(Token currentToken, int[][] expectedTokenSequences, String[] tokenImage)
It uses "currentToken" and "expectedTokenSequences" to generate a parse error message and returns it.

Field Detail

currentToken

public Token currentToken
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.

eol

protected String eol
The end of line string for this machine.

expectedTokenSequences

public int[][] expectedTokenSequences
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.

serialVersionUID

private static final long serialVersionUID
The version identifier for this Serializable class. Increment only if the serialized form of the class changes.

tokenImage

public String[] tokenImage
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.

Constructor Detail

ParseException

public ParseException(Token currentTokenVal, int[][] expectedTokenSequencesVal, String[] tokenImageVal)
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.

ParseException

public ParseException()
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.

ParseException

public ParseException(String message)
Constructor with message.

Method Detail

add_escapes

static String add_escapes(String str)
Used to convert raw characters to their escaped version when these raw version cannot be used as part of an ASCII string literal.

initialise

private static String initialise(Token currentToken, int[][] expectedTokenSequences, 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.