edu::tum::cs::logic::parser::Token Class Reference

List of all members.

Public Member Functions
String	toString ()
Static Public Member Functions
static final Token	newToken (int ofKind)
Public Attributes
int	beginColumn
int	beginLine
int	endColumn
int	endLine
String	image
int	kind
Token	next
Token	specialToken

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Detailed Description

Describes the input token stream.

Definition at line 8 of file Token.java.

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Member Function Documentation

static final Token edu::tum::cs::logic::parser::Token::newToken

(

int

ofKind

)

[inline, static]

Returns a new Token object, by default. However, if you want, you can create and return subclass objects based on the value of ofKind. Simply add the cases to the switch for all those special cases. For example, if you have a subclass of Token called IDToken that you want to create if ofKind is ID, simlpy add something like :

case MyParserConstants.ID : return new IDToken();

to the following switch statement. Then you can cast matchedToken variable to the appropriate type and use it in your lexical actions.

Definition at line 73 of file Token.java.

String edu::tum::cs::logic::parser::Token::toString

(

)

[inline]

Returns the image.

Definition at line 56 of file Token.java.

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Member Data Documentation

int edu::tum::cs::logic::parser::Token::beginColumn

Definition at line 22 of file Token.java.

int edu::tum::cs::logic::parser::Token::beginLine

beginLine and beginColumn describe the position of the first character of this token; endLine and endColumn describe the position of the last character of this token.

Definition at line 22 of file Token.java.

int edu::tum::cs::logic::parser::Token::endColumn

Definition at line 22 of file Token.java.

int edu::tum::cs::logic::parser::Token::endLine

Definition at line 22 of file Token.java.

String edu::tum::cs::logic::parser::Token::image

The string image of the token.

Definition at line 27 of file Token.java.

int edu::tum::cs::logic::parser::Token::kind

An integer that describes the kind of this token. This numbering system is determined by JavaCCParser, and a table of these numbers is stored in the file ...Constants.java.

Definition at line 15 of file Token.java.

Token edu::tum::cs::logic::parser::Token::next

A reference to the next regular (non-special) token from the input stream. If this is the last token from the input stream, or if the token manager has not read tokens beyond this one, this field is set to null. This is true only if this token is also a regular token. Otherwise, see below for a description of the contents of this field.

Definition at line 37 of file Token.java.

Token edu::tum::cs::logic::parser::Token::specialToken

This field is used to access special tokens that occur prior to this token, but after the immediately preceding regular (non-special) token. If there are no such special tokens, this field is set to null. When there are more than one such special token, this field refers to the last of these special tokens, which in turn refers to the next previous special token through its specialToken field, and so on until the first special token (whose specialToken field is null). The next fields of special tokens refer to other special tokens that immediately follow it (without an intervening regular token). If there is no such token, this field is null.

Definition at line 51 of file Token.java.

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The documentation for this class was generated from the following file:

• Token.java