CogPar
A versatile parser for mathematical expressions.
 All Classes Functions Variables
Test.java
1 /*
2  * This software and all files contained in it are distrubted under the MIT license.
3  *
4  * Copyright (c) 2013 Cogito Learning Ltd
5  *
6  * Permission is hereby granted, free of charge, to any person obtaining a copy
7  * of this software and associated documentation files (the "Software"), to deal
8  * in the Software without restriction, including without limitation the rights
9  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10  * copies of the Software, and to permit persons to whom the Software is
11  * furnished to do so, subject to the following conditions:
12  *
13  * The above copyright notice and this permission notice shall be included in
14  * all copies or substantial portions of the Software.
15  *
16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22  * THE SOFTWARE.
23  */
24 
25 package uk.co.cogitolearning.cogpar;
26 
30 public class Test
31 {
32 
36  public static void main(String[] args)
37  {
38 
39  Parser parser = new Parser();
40  try
41  {
42  ExpressionNode expr = parser.parse("sin(pi/2)");
43  expr.accept(new SetVariable("pi", Math.PI));
44  System.out.println("The value of the expression is "+expr.getValue());
45 
46  }
47  catch (ParserException e)
48  {
49  System.out.println(e.getMessage());
50  }
51  catch (EvaluationException e)
52  {
53  System.out.println(e.getMessage());
54  }
55  }
56 }