| 1 | /*
|
|---|
| 2 | * Copyright 2001-2002,2004 The Apache Software Foundation
|
|---|
| 3 | *
|
|---|
| 4 | * Licensed under the Apache License, Version 2.0 (the "License");
|
|---|
| 5 | * you may not use this file except in compliance with the License.
|
|---|
| 6 | * You may obtain a copy of the License at
|
|---|
| 7 | *
|
|---|
| 8 | * http://www.apache.org/licenses/LICENSE-2.0
|
|---|
| 9 | *
|
|---|
| 10 | * Unless required by applicable law or agreed to in writing, software
|
|---|
| 11 | * distributed under the License is distributed on an "AS IS" BASIS,
|
|---|
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|---|
| 13 | * See the License for the specific language governing permissions and
|
|---|
| 14 | * limitations under the License.
|
|---|
| 15 | *
|
|---|
| 16 | */
|
|---|
| 17 | package org.apache.tools.ant.util.regexp;
|
|---|
| 18 |
|
|---|
| 19 | /***
|
|---|
| 20 | * Regular expression utilities class which handles flag operations.
|
|---|
| 21 | *
|
|---|
| 22 | */
|
|---|
| 23 | public class RegexpUtil {
|
|---|
| 24 |
|
|---|
| 25 | /**
|
|---|
| 26 | * Check the options has a particular flag set.
|
|---|
| 27 | *
|
|---|
| 28 | * @param options an <code>int</code> value
|
|---|
| 29 | * @param flag an <code>int</code> value
|
|---|
| 30 | * @return true if the flag is set
|
|---|
| 31 | */
|
|---|
| 32 | public static boolean hasFlag(int options, int flag) {
|
|---|
| 33 | return ((options & flag) > 0);
|
|---|
| 34 | }
|
|---|
| 35 |
|
|---|
| 36 | /**
|
|---|
| 37 | * Remove a particular flag from an int value contains the option flags.
|
|---|
| 38 | *
|
|---|
| 39 | * @param options an <code>int</code> value
|
|---|
| 40 | * @param flag an <code>int</code> value
|
|---|
| 41 | * @return the options with the flag unset
|
|---|
| 42 | */
|
|---|
| 43 | public static int removeFlag(int options, int flag) {
|
|---|
| 44 | return (options & (0xFFFFFFFF - flag));
|
|---|
| 45 | }
|
|---|
| 46 | }
|
|---|
