01: /*
02: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
03: *
04: * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
05: *
06: * The contents of this file are subject to the terms of either the GNU
07: * General Public License Version 2 only ("GPL") or the Common
08: * Development and Distribution License("CDDL") (collectively, the
09: * "License"). You may not use this file except in compliance with the
10: * License. You can obtain a copy of the License at
11: * http://www.netbeans.org/cddl-gplv2.html
12: * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
13: * specific language governing permissions and limitations under the
14: * License. When distributing the software, include this License Header
15: * Notice in each file and include the License file at
16: * nbbuild/licenses/CDDL-GPL-2-CP. Sun designates this
17: * particular file as subject to the "Classpath" exception as provided
18: * by Sun in the GPL Version 2 section of the License file that
19: * accompanied this code. If applicable, add the following below the
20: * License Header, with the fields enclosed by brackets [] replaced by
21: * your own identifying information:
22: * "Portions Copyrighted [year] [name of copyright owner]"
23: *
24: * Contributor(s):
25: *
26: * The Original Software is NetBeans. The Initial Developer of the Original
27: * Software is Sun Microsystems, Inc. Portions Copyright 1997-2006 Sun
28: * Microsystems, Inc. All Rights Reserved.
29: *
30: * If you wish your version of this file to be governed by only the CDDL
31: * or only the GPL Version 2, indicate your decision by adding
32: * "[Contributor] elects to include this software in this distribution
33: * under the [CDDL or GPL Version 2] license." If you do not indicate a
34: * single choice of license, a recipient has the option to distribute
35: * your version of this file under either the CDDL, the GPL Version 2 or
36: * to extend the choice of license to its licensees as provided above.
37: * However, if you add GPL Version 2 code and therefore, elected the GPL
38: * Version 2 license, then the option applies only if the new code is
39: * made subject to such option by the copyright holder.
40: */
41:
42: package org.netbeans.modules.languages.parser;
43:
44: import org.netbeans.api.languages.CharInput;
45:
46: public class StringInput extends CharInput {
47:
48: private String expression;
49: private int index = 0;
50: private int length;
51:
52: public StringInput(String expression) {
53: this .expression = expression;
54: length = expression.length();
55: }
56:
57: public char read() {
58: if (index < length)
59: return expression.charAt(index++);
60: return 0;
61: }
62:
63: public void setIndex(int index) {
64: this .index = index;
65: }
66:
67: public int getIndex() {
68: return index;
69: }
70:
71: public boolean eof() {
72: return index >= length;
73: }
74:
75: public char next() {
76: if (index < length)
77: return expression.charAt(index);
78: return 0;
79: }
80:
81: public String getString(int from, int to) {
82: return expression.substring(from, to);
83: }
84:
85: public String getAsText() {
86: return expression.substring(index, expression.length());
87: }
88: }
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