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/*
* Copyright (C) 2013 The Android Open Source Project
*
* Licensed 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.
*/
package com.android.dialer.util;
/**
* Static utility methods for Strings.
*/
public class MoreStrings {
public static String toSafeString(String value) {
if (value == null) {
return null;
}
// Do exactly same thing as Uri#toSafeString() does, which will enable us to compare
// sanitized phone numbers.
final StringBuilder builder = new StringBuilder();
for (int i = 0; i < value.length(); i++) {
final char c = value.charAt(i);
if (c == '-' || c == '@' || c == '.') {
builder.append(c);
} else {
builder.append('x');
}
}
return builder.toString();
}
}
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