001: /*
002: * $Id: AwkFilenameFilter.java,v 1.7 2003/11/07 20:16:23 dfs Exp $
003: *
004: * ====================================================================
005: * The Apache Software License, Version 1.1
006: *
007: * Copyright (c) 2000 The Apache Software Foundation. All rights
008: * reserved.
009: *
010: * Redistribution and use in source and binary forms, with or without
011: * modification, are permitted provided that the following conditions
012: * are met:
013: *
014: * 1. Redistributions of source code must retain the above copyright
015: * notice, this list of conditions and the following disclaimer.
016: *
017: * 2. Redistributions in binary form must reproduce the above copyright
018: * notice, this list of conditions and the following disclaimer in
019: * the documentation and/or other materials provided with the
020: * distribution.
021: *
022: * 3. The end-user documentation included with the redistribution,
023: * if any, must include the following acknowledgment:
024: * "This product includes software developed by the
025: * Apache Software Foundation (http://www.apache.org/)."
026: * Alternately, this acknowledgment may appear in the software itself,
027: * if and wherever such third-party acknowledgments normally appear.
028: *
029: * 4. The names "Apache" and "Apache Software Foundation", "Jakarta-Oro"
030: * must not be used to endorse or promote products derived from this
031: * software without prior written permission. For written
032: * permission, please contact apache@apache.org.
033: *
034: * 5. Products derived from this software may not be called "Apache"
035: * or "Jakarta-Oro", nor may "Apache" or "Jakarta-Oro" appear in their
036: * name, without prior written permission of the Apache Software Foundation.
037: *
038: * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
039: * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
040: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
041: * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
042: * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
043: * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
044: * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
045: * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
046: * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
047: * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
048: * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
049: * SUCH DAMAGE.
050: * ====================================================================
051: *
052: * This software consists of voluntary contributions made by many
053: * individuals on behalf of the Apache Software Foundation. For more
054: * information on the Apache Software Foundation, please see
055: * <http://www.apache.org/>.
056: */
057:
058: package org.apache.oro.io;
059:
060: import java.io.*;
061:
062: import org.apache.oro.text.regex.*;
063: import org.apache.oro.text.awk.*;
064: import org.apache.oro.text.*;
065:
066: /**
067: * AwkFilenameFilter is a RegexFilenameFilter subclass that filters on Awk
068: * regular expressions as implemented by the org.apache.oro.text.awk package,
069: * which is required to use this class.
070: *
071: * @version @version@
072: * @since 1.0
073: * @see RegexFilenameFilter
074: * @see Perl5FilenameFilter
075: * @see GlobFilenameFilter
076: */
077: public class AwkFilenameFilter extends RegexFilenameFilter {
078: private static final PatternMatcher __MATCHER = new AwkMatcher();
079: private static final PatternCache __CACHE = new PatternCacheLRU(
080: new AwkCompiler());
081:
082: /**
083: * Construct a filter initialized with the indicated regular expression
084: * and accompanying compilation options conforming to those used by
085: * <code> org.apache.oro.text.awk.AwkCompiler </code>
086: * <p>
087: * @param regex The regular expression on which to filter.
088: * @param options A set of compilation options.
089: * @exception MalformedCachePatternException If there is an error in
090: * compiling the regular expression. This need not be caught if
091: * you are using a hard-coded expression that you know is correct.
092: * But for robustness and reliability you should catch this exception
093: * for dynamically entered expressions determined at runtime.
094: */
095: public AwkFilenameFilter(String regex, int options) {
096: super (__CACHE, __MATCHER, regex, options);
097: }
098:
099: /** Same as AwkFilenameFilter(regex, AwkCompiler.DEFAULT_MASK); */
100: public AwkFilenameFilter(String regex) {
101: super (__CACHE, __MATCHER, regex);
102: }
103:
104: /** Same as AwkFilenameFilter(""); */
105: public AwkFilenameFilter() {
106: super(__CACHE, __MATCHER);
107: }
108: }
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