public Class CharStreamState

Class Inheritance

extends Object

java.lang.Object
org.antlr.runtime.CharStreamState

When walking ahead with cyclic DFA or for syntactic predicates, we need to record the state of the input stream (char index, line, etc...) so that we can rewind the state after scanning ahead. This is the complete state of a stream.

Field Summary

Modifier and Type	Field and Description
pack-priv int	charPositionInLine What char position 0..n-1 in line is scanner before processing buffer[p]?
pack-priv int	line What line number is the scanner at before processing buffer[p]?
pack-priv int	p Index into the char stream of next lookahead char

Constructor Summary

Access	Constructor and Description
public	CharStreamState()

Method Summary

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

Field Detail

charPositionInLine	back to summary
pack-priv int charPositionInLine What char position 0..n-1 in line is scanner before processing buffer[p]?

line	back to summary
pack-priv int line What line number is the scanner at before processing buffer[p]?

p	back to summary
pack-priv int p Index into the char stream of next lookahead char

Constructor Detail

CharStreamState	back to summary
public CharStreamState()