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: /**
19: * @author Alexander V. Esin
20: * @version $Revision$
21: */package org.apache.harmony.security.x509;
22:
23: /**
24: * Text utils for processing DN string representations
25: */
26:
27: public class Utils {
28:
29: /**
30: * Checks if the string is PrintableString (see X.680)
31: * @param str input string
32: * @return true if the string is PrintableString, false otherwise
33: */
34: public static boolean isPrintableString(String str) {
35: for (int i = 0; i < str.length(); ++i) {
36: char ch = str.charAt(i);
37: if (!(ch == 0x20 || ch >= 0x27 && ch <= 0x29 // '()
38: || ch >= 0x2B && ch <= 0x3A // +,-./0-9:
39: || ch == '=' || ch == '?' || ch >= 'A' && ch <= 'Z' || ch >= 'a'
40: && ch <= 'z')) {
41: return false;
42: }
43: }
44: return true;
45: }
46: }
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