N
- the enum class that lists all nonterminal symbols for this
grammar.public class FlexibleGrammar<N extends Enum<N>> extends Object implements Grammar<N>
Modifier and Type | Class and Description |
---|---|
static class |
FlexibleGrammar.RuleAvailabilityMatrix<N extends Enum<N>> |
Constructor and Description |
---|
FlexibleGrammar(Class<N> nonterminalClass,
N axiom) |
Modifier and Type | Method and Description |
---|---|
void |
addRule(N left,
ProductionRule<N> rule)
Adds a production rule to this grammar.
|
N[] |
dependencySort()
Returns the nonterminals of this grammar sorted according to their
dependencies on one another.
|
EnumSet<N> |
getAccepting()
Returns the set of all accepting nonterminals of this grammar.
|
EnumMap<N,FlexibleGrammar.RuleAvailabilityMatrix<N>> |
getAvailabilities(int M,
int N) |
N |
getAxiom()
Returns the axiom of this grammar.
|
Class<N> |
getNonterminalClass()
Returns the enum class that lists the nonterminal symbols of
this grammar.
|
ArrayList<ProductionRule<N>> |
getPossibleRules(N nonterminal,
int leftSize,
int rightSize,
int M,
int N)
Returns all production rules of this grammar that can be applied
in the current situation.
|
EnumMap<N,ArrayList<ProductionRule<N>>> |
getRules()
Returns all production rules that are stored in this grammar.
|
boolean |
requires(OperationType type)
This method should return true if and only if this Grammar uses the given OperationType.
|
String |
toString() |
void |
validate()
This ensures that the grammar is terminal, that is:
1.)
|
public Class<N> getNonterminalClass()
Grammar
getNonterminalClass
in interface Grammar<N extends Enum<N>>
public N getAxiom()
Grammar
public EnumMap<N,ArrayList<ProductionRule<N>>> getRules()
public void addRule(@NonNull N left, @NonNull ProductionRule<N> rule)
left
- the left hand side of the production rule.rule
- the right hand side of the production rule.public EnumSet<N> getAccepting()
Grammar
getAccepting
in interface Grammar<N extends Enum<N>>
public void validate()
public N[] dependencySort()
Grammar
dependencySort
in interface Grammar<N extends Enum<N>>
public ArrayList<ProductionRule<N>> getPossibleRules(@NonNull N nonterminal, int leftSize, int rightSize, int M, int N)
Grammar
getPossibleRules
in interface Grammar<N extends Enum<N>>
nonterminal
- the nonterminal symbol on the left side of all
returned production rules.leftSize
- the nodes available in the left input sequence.rightSize
- the nodes available in the right right sequence.M
- the overall length of the left input sequence.N
- the overall length of the right input sequence.public boolean requires(@NonNull OperationType type)
Grammar
public EnumMap<N,FlexibleGrammar.RuleAvailabilityMatrix<N>> getAvailabilities(int M, int N)
Copyright (C) 2016-2018 Benjamin Paaßen, AG Theoretical Computer Science, Centre of Excellence Cognitive Interaction Technology (CITEC), University of Bielefeld, licensed under the AGPL v. 3: http://openresearch.cit-ec.de/projects/tcs . This documentation is licensed under the conditions of CC-BY-SA 4.0: https://creativecommons.org/licenses/by-sa/4.0/