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/*
* Do not modify this file.
*/
package parser;
import java.util.ArrayList;
import java.util.Objects;
/**
*
*/
public class Rule {
private int name;
private final String lhs;
private ArrayList<String> rhs;
public Rule(String lhs) {
this.name = 0;
this.lhs = lhs;
rhs = new ArrayList<>();
}
public void setName(int name) {
this.name = name;
}
public int getName() {
return this.name;
}
@Override
public String toString() {
String ret = "R" + name + " " + lhs + " -> ";
for (String symbol : getRhs()) {
ret = ret + symbol + " ";
}
return ret;
}
@Override
public int hashCode() {
int hash = 7;
hash = 37 * hash + Objects.hashCode(this.lhs);
hash = 37 * hash + this.name;
for (int i = 0; i < this.rhs.size(); ++i) {
hash = 37 * hash + Objects.hashCode(this.rhs.get(i));
}
return hash;
}
@Override
public boolean equals(Object obj) {
if (obj == null) {
return false;
}
if (getClass() != obj.getClass()) {
return false;
}
final Rule other = (Rule) obj;
if (!this.lhs.equals(other.lhs)) {
return false;
}
if (this.name != other.name) {
return false;
}
if (this.rhs.size() != other.rhs.size()) {
return false;
}
for (int i = 0; i < this.rhs.size(); ++i) {
if (!this.rhs.get(i).equals(other.rhs.get(i))) {
return false;
}
}
return true;
}
public String getLhs() {
return lhs;
}
public ArrayList<String> getRhs() {
if (rhs.isEmpty()) {
rhs.add("EPSILON");
}
return rhs;
}
public void addRhs(String symbol) {
rhs.add(symbol);
}
}
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