001/*
002 * Copyright (c) 2005 Einar Pehrson <einar@pehrson.nu>.
003 *
004 * This file is part of
005 * CleanSheets - a spreadsheet application for the Java platform.
006 *
007 * CleanSheets is free software; you can redistribute it and/or modify
008 * it under the terms of the GNU General Public License as published by
009 * the Free Software Foundation; either version 2 of the License, or
010 * (at your option) any later version.
011 *
012 * CleanSheets is distributed in the hope that it will be useful,
013 * but WITHOUT ANY WARRANTY; without even the implied warranty of
014 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
015 * GNU General Public License for more details.
016 *
017 * You should have received a copy of the GNU General Public License
018 * along with CleanSheets; if not, write to the Free Software
019 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
020 */
021package csheets.core.formula.compiler;
022
023import csheets.core.Cell;
024import csheets.core.formula.Expression;
025
026/**
027 * A compiler that generates expressions from strings.
028 * @author Einar Pehrson
029 */
030public interface ExpressionCompiler {
031
032        /**
033         * Compiles an expression from the given string.
034         * @param cell the cell for which the expression is to be compiled
035         * @param source a string representing the expression to be compiled
036         * @return the compiled expression
037         * @throws FormulaCompilationException if the expression could not be compiled
038         */
039        public Expression compile(Cell cell, String source) throws FormulaCompilationException;
040
041        /**
042         * @return the 
043         */
044        public char getStarter();
045}