01: /*
02: $Id: RegexExpression.java 3419 2006-01-19 00:07:02Z blackdrag $
03:
04: Copyright 2003 (C) James Strachan and Bob Mcwhirter. All Rights Reserved.
05:
06: Redistribution and use of this software and associated documentation
07: ("Software"), with or without modification, are permitted provided
08: that the following conditions are met:
09:
10: 1. Redistributions of source code must retain copyright
11: statements and notices. Redistributions must also contain a
12: copy of this document.
13:
14: 2. Redistributions in binary form must reproduce the
15: above copyright notice, this list of conditions and the
16: following disclaimer in the documentation and/or other
17: materials provided with the distribution.
18:
19: 3. The name "groovy" must not be used to endorse or promote
20: products derived from this Software without prior written
21: permission of The Codehaus. For written permission,
22: please contact info@codehaus.org.
23:
24: 4. Products derived from this Software may not be called "groovy"
25: nor may "groovy" appear in their names without prior written
26: permission of The Codehaus. "groovy" is a registered
27: trademark of The Codehaus.
28:
29: 5. Due credit should be given to The Codehaus -
30: http://groovy.codehaus.org/
31:
32: THIS SOFTWARE IS PROVIDED BY THE CODEHAUS AND CONTRIBUTORS
33: ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT
34: NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
35: FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
36: THE CODEHAUS OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
37: INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
38: (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
39: SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
40: HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
41: STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
42: ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
43: OF THE POSSIBILITY OF SUCH DAMAGE.
44:
45: */
46: package org.codehaus.groovy.ast.expr;
47:
48: import org.codehaus.groovy.ast.ClassHelper;
49: import org.codehaus.groovy.ast.GroovyCodeVisitor;
50:
51: /**
52: * Represents a regular expression of the form ~<double quoted string> which creates
53: * a regular expression.
54: *
55: * @author <a href="mailto:james@coredevelopers.net">James Strachan</a>
56: * @version $Revision: 3419 $
57: */
58: public class RegexExpression extends Expression {
59:
60: private Expression string;
61:
62: public RegexExpression(Expression string) {
63: this .string = string;
64: super .setType(ClassHelper.PATTERN_TYPE);
65: }
66:
67: public void visit(GroovyCodeVisitor visitor) {
68: visitor.visitRegexExpression(this );
69: }
70:
71: public Expression transformExpression(
72: ExpressionTransformer transformer) {
73: Expression ret = new RegexExpression(transformer
74: .transform(string));
75: ret.setSourcePosition(this );
76: return ret;
77: }
78:
79: public Expression getRegex() {
80: return string;
81: }
82:
83: }
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