org.sc3d.apt.sss.v3
Class SSSChar

java.lang.Object
  org.sc3d.apt.sss.v3.Token
      org.sc3d.apt.sss.v3.SSSChar

public class SSSChar
extends Token

A subclass of Token that represents a literal character. The 'type' field is always 'Token.TYPE_CHAR'. This class adds a 'value' field that gives the unicode character value of this literal character.

Field Summary

boolean	isOkay 'true' if this literal character is syntactically correct, otherwise 'false'.
int	value The unicode character value of this literal character.

Fields inherited from class org.sc3d.apt.sss.v3.Token

length, sentence, start, type, TYPE_BRACE, TYPE_CHAR, TYPE_COMMENT, TYPE_CONSTANT, TYPE_IDENTIFIER, TYPE_NUMBER, TYPE_ROUND, TYPE_SQUARE, TYPE_STRING, TYPE_WORD

Constructor Summary

SSSChar(Sentence sentence, int start, int length, int value, boolean isOkay)
Constructs an SSSChar given values for its fields.

Method Summary

static SSSChar	lex(Sentence sentence, int start) Lexes a single SSSChar from 'sentence' starting at 'start'.
static void	main(java.lang.String[] args)

Methods inherited from class org.sc3d.apt.sss.v3.Token

addError, equals, hashCode, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

value

public final int value

The unicode character value of this literal character. This value is undefined unless 'isOkay'.

isOkay

public final boolean isOkay

'true' if this literal character is syntactically correct, otherwise 'false'.

Constructor Detail

SSSChar

public SSSChar(Sentence sentence,
               int start,
               int length,
               int value,
               boolean isOkay)

Constructs an SSSChar given values for its fields.

Method Detail

lex

public static SSSChar lex(Sentence sentence,
                          int start)

Lexes a single SSSChar from 'sentence' starting at 'start'. This method always returns an SSSChar. If there is a syntax error, this method returns an SSSChar representing the correct part, and attaches error messages to 'sentence'.

Parameters:

sentence - the sentence from which to pluck an SSSChar.

start - the index of the opening ' character.

Returns:

a fresh SSSChar.

Throws:

java.lang.IllegalArgumentException - if there isn't a ' character at 'start'.

main

public static void main(java.lang.String[] args)