1 /*
2 * Copyright 2004-2005 the original author or authors.
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
5 * use this file except in compliance with the License. You may obtain a copy of
6 * the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
12 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
13 * License for the specific language governing permissions and limitations under
14 * the License.
15 */
16 package net.sf.morph.lang.support;
17
18 import net.sf.morph.lang.InvalidExpressionException;
19
20 /**
21 * A basic parser that breaks an expression into an array of tokens.
22 *
23 * @author Matt Sgarlata
24 * @since Nov 28, 2004
25 */
26 public interface ExpressionParser {
27
28 /**
29 * Parses an expression and returns the tokens found in the expression.
30 *
31 * @param expression
32 * the expression
33 * @return the tokens found in the expression
34 * @throws InvalidExpressionException
35 * if the supplied expression is invalid
36 */
37 public String[] parse(String expression) throws InvalidExpressionException;
38 }