47 lines
1.0 KiB
Java
47 lines
1.0 KiB
Java
package parser.grammar;
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import java.util.Objects;
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public class GrammarRule {
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private final String leftside;
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private final String rightside;
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public GrammarRule(String leftside, String... rightside) {
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this.leftside = leftside.trim();
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this.rightside = String.join(" ", rightside).trim();
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}
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public String getLeftside() {
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return this.leftside;
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}
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public String getRightside() {
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return this.rightside;
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}
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public String[] getSymbols() {
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return this.rightside.split(" ");
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}
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@Override
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public boolean equals(Object obj) {
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if (obj instanceof GrammarRule) {
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return this.leftside.equals(((GrammarRule) obj).leftside)
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&& this.rightside.equals(((GrammarRule) obj).rightside);
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}
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return false;
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}
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@Override
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public int hashCode() {
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return Objects.hash(this.leftside, this.rightside);
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}
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@Override
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public String toString() {
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return this.leftside + " -> " + this.rightside;
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}
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}
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