/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* @author Alexander V. Esin
*/
package org.apache.harmony.security.x509;
/**
* Text utils for processing DN string representations
*/
public class Utils {
/**
* Checks if the string is PrintableString (see X.680)
*
* @param str
* input string
* @return true if the string is PrintableString, false otherwise
*/
public static boolean isPrintableString(String str) {
for (int i = 0; i < str.length(); ++i) {
final char ch = str.charAt(i);
if (!(ch == 0x20 || ch >= 0x27 && ch <= 0x29 // '()
|| ch >= 0x2B && ch <= 0x3A // +,-./0-9:
|| ch == '=' || ch == '?' || ch >= 'A' && ch <= 'Z' || ch >= 'a'
&& ch <= 'z')) {
return false;
}
}
return true;
}
}