01: /*BEGIN_COPYRIGHT_BLOCK
02: *
03: * Copyright (c) 2001-2007, JavaPLT group at Rice University (javaplt@rice.edu)
04: * All rights reserved.
05: *
06: * Redistribution and use in source and binary forms, with or without
07: * modification, are permitted provided that the following conditions are met:
08: * * Redistributions of source code must retain the above copyright
09: * notice, this list of conditions and the following disclaimer.
10: * * Redistributions in binary form must reproduce the above copyright
11: * notice, this list of conditions and the following disclaimer in the
12: * documentation and/or other materials provided with the distribution.
13: * * Neither the names of DrJava, the JavaPLT group, Rice University, nor the
14: * names of its contributors may be used to endorse or promote products
15: * derived from this software without specific prior written permission.
16: *
17: * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
18: * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
19: * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
20: * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
21: * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
22: * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
23: * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
24: * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
25: * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
26: * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
27: * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28: *
29: * This software is Open Source Initiative approved Open Source Software.
30: * Open Source Initative Approved is a trademark of the Open Source Initiative.
31: *
32: * This file is part of DrJava. Download the current version of this project
33: * from http://www.drjava.org/ or http://sourceforge.net/projects/drjava/
34: *
35: * END_COPYRIGHT_BLOCK*/
36:
37: package edu.rice.cs.util.sexp;
38:
39: public class TextAtom implements Atom {
40: protected String _text;
41:
42: public TextAtom(String text) {
43: _text = text;
44: }
45:
46: public String getText() {
47: return _text;
48: }
49:
50: /**
51: * Visitor hook for the TextAtom
52: * @param v the visitor
53: * @return result of the given algorithm
54: */
55: public <Ret> Ret accept(SExpVisitor<Ret> v) {
56: return v.forTextAtom(this );
57: }
58:
59: /**
60: * If the given text was a quoted string, the text returned
61: * excludes the quotes around the string.
62: * @return the text that went into making this atom.
63: */
64: public String toString() {
65: return _text;
66: }
67: }
68:
69: /**
70: * this type of text atom is mostly like its super class
71: * except its string representation includes the sourrounding
72: * quotes and the instances of the characters: \ " etc are turned
73: * into their corresponding escape character sequences.
74: */
75: class QuotedTextAtom extends TextAtom {
76:
77: public QuotedTextAtom(String text) {
78: super (text);
79: }
80:
81: public String toString() {
82: return edu.rice.cs.util.StringOps.convertToLiteral(_text);
83: }
84: }
|