01: /*
02: * Licensed to the Apache Software Foundation (ASF) under one or more
03: * contributor license agreements. See the NOTICE file distributed with
04: * this work for additional information regarding copyright ownership.
05: * The ASF licenses this file to You under the Apache License, Version 2.0
06: * (the "License"); you may not use this file except in compliance with
07: * the License. You may obtain a copy of the License at
08: *
09: * http://www.apache.org/licenses/LICENSE-2.0
10: *
11: * Unless required by applicable law or agreed to in writing, software
12: * distributed under the License is distributed on an "AS IS" BASIS,
13: * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14: * See the License for the specific language governing permissions and
15: * limitations under the License.
16: *
17: */
18: package org.apache.tools.ant.util.regexp;
19:
20: // CheckStyle:HideUtilityClassConstructorCheck OFF - bc
21:
22: /***
23: * Regular expression utilities class which handles flag operations.
24: *
25: */
26: public class RegexpUtil {
27:
28: /**
29: * Check the options has a particular flag set.
30: *
31: * @param options an <code>int</code> value
32: * @param flag an <code>int</code> value
33: * @return true if the flag is set
34: */
35: public static boolean hasFlag(int options, int flag) {
36: return ((options & flag) > 0);
37: }
38:
39: /**
40: * Remove a particular flag from an int value contains the option flags.
41: *
42: * @param options an <code>int</code> value
43: * @param flag an <code>int</code> value
44: * @return the options with the flag unset
45: */
46: public static int removeFlag(int options, int flag) {
47: return (options & (0xFFFFFFFF - flag));
48: }
49: }
|