Signal-Android/src/org/thoughtcrime/securesms/util/NumberUtil.java

54 lines
1.6 KiB
Java

/**
* Copyright (C) 2012 Whisper Systems
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.thoughtcrime.securesms.util;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import android.telephony.PhoneNumberUtils;
public class NumberUtil {
private static final Pattern emailPattern = android.util.Patterns.EMAIL_ADDRESS;
public static boolean isValidEmail(String number) {
Matcher matcher = emailPattern.matcher(number);
return matcher.matches();
}
public static boolean isValidSmsOrEmail(String number) {
return PhoneNumberUtils.isWellFormedSmsAddress(number) || isValidEmail(number);
}
public static String filterNumber(String number) {
if (number == null) return null;
int length = number.length();
StringBuilder builder = new StringBuilder(length);
for (int i = 0; i < length; i++) {
char character = number.charAt(i);
if (Character.isDigit(character) || character == '+')
builder.append(character);
}
return builder.toString();
}
}