org.antlr.analysis
Class NFA
java.lang.Object
org.antlr.analysis.NFA
public class NFA
- extends java.lang.Object
An NFA (collection of NFAStates) constructed from a grammar. This
NFA is one big machine for entire grammar. Decision points are recorded
by the Grammar object so we can, for example, convert to DFA or simulate
the NFA (interpret a decision).
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
INVALID_ALT_NUMBER
public static final int INVALID_ALT_NUMBER
- See Also:
- Constant Field Values
grammar
public Grammar grammar
- This NFA represents which grammar?
numberToStateList
protected java.util.Vector numberToStateList
- The NFA states in this NFA. Maps state number to NFAState object.
This is a Vector instead of a List because I need to be able to grow
this properly. After talking to Josh Bloch, Collections guy at Sun,
I decided this was easiest solution.
factory
protected NFAFactory factory
- Which factory created this NFA?
NFA
public NFA(Grammar g)
addState
public void addState(NFAState state)
getState
public NFAState getState(int s)
getFactory
public NFAFactory getFactory()
setFactory
public void setFactory(NFAFactory factory)