/* * Copyright (C) 2018 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.precall.impl; import android.content.Context; import android.telephony.PhoneNumberUtils; import com.android.dialer.common.LogUtil; import com.android.dialer.configprovider.ConfigProviderComponent; import com.android.dialer.precall.impl.MalformedNumberRectifier.MalformedNumberHandler; import com.google.common.base.Optional; /** * It is customary in UK to present numbers as "+44 (0) xx xxxx xxxx". This is actually a amalgam of * international (+44 xx xxxx xxxx) and regional (0xx xxxx xxxx) format, and is in fact invalid. It * might be rejected depending on the carrier. * *
This class removes the "0" region code prefix if the first dialable digits are "+440". UK
* short codes and region codes in international format will never start with a 0.
*/
class UkRegionPrefixInInternationalFormatHandler implements MalformedNumberHandler {
private static final String MALFORMED_PREFIX = "+440";
@Override
public Optional