fipaos.parser.sl
Class Token


public class Token

Describes the input token stream.


Field Summary
 intbeginColumn
          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.
 intbeginLine
          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.
 intendColumn
          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.
 intendLine
          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.
 Stringimage
          The string image of the token.
 intkind
          An integer that describes the kind of this token.
 Tokennext
          A reference to the next regular (non-special) token from the input
stream.
 TokenspecialToken
          This field is used to access special tokens that occur prior to this
token, but after the immediately preceding regular (non-special) token.

Method Summary
 final static TokennewToken(int ofKind)
          Returns a new Token object, by default.
 final StringtoString()
          Returns the image.

Field Detail

beginColumn

public int beginColumn
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.

beginLine

public int 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.

endColumn

public int endColumn
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.

endLine

public int endLine
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.

image

public String image
The string image of the token.

kind

public int 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.

next

public 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.

specialToken

public 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.
Method Detail

newToken

public final static Token newToken(int ofKind)
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.

toString

public final String toString()
Returns the image.

Association Links

to Class java.lang.String

The string image of the token.

to Class fipaos.parser.sl.Token

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.

to Class fipaos.parser.sl.Token

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.