CompanyAcceptor.java

package org.softlang.company.features.parser;

import static org.softlang.company.features.parser.CompanyLexer.*;

import parseLib.acceptor.*;
import parseLib.util.Input;

/**
 * A combinator-based acceptor for companies.
 */
public class CompanyAcceptor extends Acceptor {

    /** 
     * Parse companies.
     */
    public static Acceptor company() {
        return new Acceptor() {
            public boolean accept(Input i) {
                return (
                    sequence(
                        SPECIAL("company"),
                        STRING,
                        SPECIAL("{"),
                        star(department()),
                        SPECIAL("}"),
                        EOF // Test that all input has been consumed.
                )).accept(i);
            }
        };
    }

    /** 
     * Parse departments.
     */
    public static Acceptor department() {
        return new Acceptor() {
            public boolean accept(Input i) {
                return (
                        sequence(
                            SPECIAL("department"),
                            STRING,
                            SPECIAL("{"),
                            employee("manager"),
                            star(employee("employee")),
                            star(department()),
                            SPECIAL("}")
                        )).accept(i);
            }
        };
    }

    /** 
     * Parse employees.
     */
    public static Acceptor employee(final String keyword) {
        return new Acceptor() {
            public boolean accept(Input i) {
                return (
                        sequence(
                            SPECIAL(keyword),
                            STRING,
                            SPECIAL("{"),
                            SPECIAL("address"),
                            STRING,
                            SPECIAL("salary"),
                            FLOAT,                        
                            SPECIAL("}")
                        )).accept(i);
            }
        };
    }    

    /**
     * Invoke start symbol.
     */
    public boolean accept(Input i) {
        return company().accept(i);
    }
}