001package ca.uhn.fhir.context.phonetic;
002
003/*-
004 * #%L
005 * HAPI FHIR - Core Library
006 * %%
007 * Copyright (C) 2014 - 2021 Smile CDR, Inc.
008 * %%
009 * Licensed under the Apache License, Version 2.0 (the "License");
010 * you may not use this file except in compliance with the License.
011 * You may obtain a copy of the License at
012 *
013 *      http://www.apache.org/licenses/LICENSE-2.0
014 *
015 * Unless required by applicable law or agreed to in writing, software
016 * distributed under the License is distributed on an "AS IS" BASIS,
017 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
018 * See the License for the specific language governing permissions and
019 * limitations under the License.
020 * #L%
021 */
022
023import com.google.common.base.CharMatcher;
024
025// Useful for numerical identifiers like phone numbers, address parts etc.
026// This should not be used where decimals are important.  A new "quantity encoder" should be added to handle cases like that.
027public class NumericEncoder implements IPhoneticEncoder {
028        @Override
029        public String name() {
030                return "NUMERIC";
031        }
032
033        @Override
034        public String encode(String theString) {
035                // Remove everything but the numbers
036                return CharMatcher.inRange('0', '9').retainFrom(theString);
037        }
038}