1 /* 2 * Copyright (C) 2010 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 package com.android.vcard; 17 18 import java.util.Set; 19 20 21 /** 22 * <p> 23 * Basic implementation parsing vCard 4.0. 24 * </p> 25 * <p> 26 * vCard 4.0 is not published yet. Also this implementation is premature. 27 * </p> 28 * @hide 29 */ 30 /* package */ class VCardParserImpl_V40 extends VCardParserImpl_V30 { 31 // private static final String LOG_TAG = VCardConstants.LOG_TAG; 32 VCardParserImpl_V40()33 public VCardParserImpl_V40() { 34 super(); 35 } 36 VCardParserImpl_V40(final int vcardType)37 public VCardParserImpl_V40(final int vcardType) { 38 super(vcardType); 39 } 40 41 @Override getVersion()42 protected int getVersion() { 43 return VCardConfig.VERSION_40; 44 } 45 46 @Override getVersionString()47 protected String getVersionString() { 48 return VCardConstants.VERSION_V40; 49 } 50 51 /** 52 * We escape "\N" into new line for safety. 53 */ 54 @Override maybeUnescapeText(final String text)55 protected String maybeUnescapeText(final String text) { 56 return unescapeText(text); 57 } 58 unescapeText(final String text)59 public static String unescapeText(final String text) { 60 // TODO: more strictly, vCard 4.0 requires different type of unescaping rule 61 // toward each property. 62 final StringBuilder builder = new StringBuilder(); 63 final int length = text.length(); 64 for (int i = 0; i < length; i++) { 65 char ch = text.charAt(i); 66 if (ch == '\\' && i < length - 1) { 67 final char next_ch = text.charAt(++i); 68 if (next_ch == 'n' || next_ch == 'N') { 69 builder.append("\n"); 70 } else { 71 builder.append(next_ch); 72 } 73 } else { 74 builder.append(ch); 75 } 76 } 77 return builder.toString(); 78 } 79 unescapeCharacter(final char ch)80 public static String unescapeCharacter(final char ch) { 81 if (ch == 'n' || ch == 'N') { 82 return "\n"; 83 } else { 84 return String.valueOf(ch); 85 } 86 } 87 88 @Override getKnownPropertyNameSet()89 protected Set<String> getKnownPropertyNameSet() { 90 return VCardParser_V40.sKnownPropertyNameSet; 91 } 92 }