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Commit 5a1f2d2d authored by Daisuke Miyakawa's avatar Daisuke Miyakawa
Browse files

Rename several files so that readers would not be confused. 

Add unit tests around Phone-number handling and fix some bugs.

Internal issue number: 2195990
parent e3cfe2d9

core/java/android/pim/vcard/Constants.java

+3 −14
Original line number Diff line number Diff line
@@ -83,18 +83,6 @@ package android.pim.vcard; 


    public static final String PARAM_TYPE = "TYPE";



    // How more than one TYPE fields are expressed is different between vCard 2.1 and vCard 3.0

    //

    // e.g.

    // 1) Probably valid in both vCard 2.1 and vCard 3.0: "ADR;TYPE=DOM;TYPE=HOME:..." 

    // 2) Valid in vCard 2.1 but not in vCard 3.0: "ADR;DOM;HOME:..."

    // 3) Valid in vCard 3.0 but not in vCard 2.1: "ADR;TYPE=DOM,HOME:..."

    //

    // 2) has been the default of VCard exporter/importer in Android, but we can see the other

    // formats in vCard data emitted by the other softwares/devices.

    //

    // So we are currently not sure which type is the best; probably we will have to change which

    // type should be emitted depending on the device.

    public static final String PARAM_TYPE_HOME = "HOME";

    public static final String PARAM_TYPE_WORK = "WORK";

    public static final String PARAM_TYPE_FAX = "FAX";
@@ -117,7 +105,6 @@ package android.pim.vcard; 
    public static final String PARAM_TYPE_TLX = "TLX";  // Telex



    // Phone types existing in vCard 2.1 but not known to ContactsContract.

    // TODO: should make parser make these TYPE_CUSTOM.

    public static final String PARAM_TYPE_MODEM = "MODEM";

    public static final String PARAM_TYPE_MSG = "MSG";

    public static final String PARAM_TYPE_BBS = "BBS";
@@ -156,9 +143,11 @@ package android.pim.vcard; 
        public static final String PROPERTY_X_GOOGLE_TALK_WITH_SPACE = "X-GOOGLE TALK";

    }



    // TODO: Should be in ContactsContract?

    /* package */ static final int MAX_DATA_COLUMN = 15;



    /* package */ static final int MAX_CHARACTER_NUMS_QP = 76;

    static final int MAX_CHARACTER_NUMS_BASE64_V30 = 75;



    private Constants() {

    }

}
 
 No newline at end of file

core/java/android/pim/vcard/JapaneseUtils.java

0 → 100644
+380 −0
Original line number Diff line number Diff line 
/*

 * Copyright (C) 2009 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 android.pim.vcard;



import java.util.HashMap;

import java.util.Map;



/**

 * TextUtils especially for Japanese.

 */

/* package */ class JapaneseUtils {

    static private final Map<Character, String> sHalfWidthMap =

        new HashMap<Character, String>();



    static {

        // There's no logical mapping rule in Unicode. Sigh.

        sHalfWidthMap.put('\u3001', "\uFF64");

        sHalfWidthMap.put('\u3002', "\uFF61");

        sHalfWidthMap.put('\u300C', "\uFF62");

        sHalfWidthMap.put('\u300D', "\uFF63");

        sHalfWidthMap.put('\u301C', "~");

        sHalfWidthMap.put('\u3041', "\uFF67");

        sHalfWidthMap.put('\u3042', "\uFF71");

        sHalfWidthMap.put('\u3043', "\uFF68");

        sHalfWidthMap.put('\u3044', "\uFF72");

        sHalfWidthMap.put('\u3045', "\uFF69");

        sHalfWidthMap.put('\u3046', "\uFF73");

        sHalfWidthMap.put('\u3047', "\uFF6A");

        sHalfWidthMap.put('\u3048', "\uFF74");

        sHalfWidthMap.put('\u3049', "\uFF6B");

        sHalfWidthMap.put('\u304A', "\uFF75");

        sHalfWidthMap.put('\u304B', "\uFF76");

        sHalfWidthMap.put('\u304C', "\uFF76\uFF9E");

        sHalfWidthMap.put('\u304D', "\uFF77");

        sHalfWidthMap.put('\u304E', "\uFF77\uFF9E");

        sHalfWidthMap.put('\u304F', "\uFF78");

        sHalfWidthMap.put('\u3050', "\uFF78\uFF9E");

        sHalfWidthMap.put('\u3051', "\uFF79");

        sHalfWidthMap.put('\u3052', "\uFF79\uFF9E");

        sHalfWidthMap.put('\u3053', "\uFF7A");

        sHalfWidthMap.put('\u3054', "\uFF7A\uFF9E");

        sHalfWidthMap.put('\u3055', "\uFF7B");

        sHalfWidthMap.put('\u3056', "\uFF7B\uFF9E");

        sHalfWidthMap.put('\u3057', "\uFF7C");

        sHalfWidthMap.put('\u3058', "\uFF7C\uFF9E");

        sHalfWidthMap.put('\u3059', "\uFF7D");

        sHalfWidthMap.put('\u305A', "\uFF7D\uFF9E");

        sHalfWidthMap.put('\u305B', "\uFF7E");

        sHalfWidthMap.put('\u305C', "\uFF7E\uFF9E");

        sHalfWidthMap.put('\u305D', "\uFF7F");

        sHalfWidthMap.put('\u305E', "\uFF7F\uFF9E");

        sHalfWidthMap.put('\u305F', "\uFF80");

        sHalfWidthMap.put('\u3060', "\uFF80\uFF9E");

        sHalfWidthMap.put('\u3061', "\uFF81");

        sHalfWidthMap.put('\u3062', "\uFF81\uFF9E");

        sHalfWidthMap.put('\u3063', "\uFF6F");

        sHalfWidthMap.put('\u3064', "\uFF82");

        sHalfWidthMap.put('\u3065', "\uFF82\uFF9E");

        sHalfWidthMap.put('\u3066', "\uFF83");

        sHalfWidthMap.put('\u3067', "\uFF83\uFF9E");

        sHalfWidthMap.put('\u3068', "\uFF84");

        sHalfWidthMap.put('\u3069', "\uFF84\uFF9E");

        sHalfWidthMap.put('\u306A', "\uFF85");

        sHalfWidthMap.put('\u306B', "\uFF86");

        sHalfWidthMap.put('\u306C', "\uFF87");

        sHalfWidthMap.put('\u306D', "\uFF88");

        sHalfWidthMap.put('\u306E', "\uFF89");

        sHalfWidthMap.put('\u306F', "\uFF8A");

        sHalfWidthMap.put('\u3070', "\uFF8A\uFF9E");

        sHalfWidthMap.put('\u3071', "\uFF8A\uFF9F");

        sHalfWidthMap.put('\u3072', "\uFF8B");

        sHalfWidthMap.put('\u3073', "\uFF8B\uFF9E");

        sHalfWidthMap.put('\u3074', "\uFF8B\uFF9F");

        sHalfWidthMap.put('\u3075', "\uFF8C");

        sHalfWidthMap.put('\u3076', "\uFF8C\uFF9E");

        sHalfWidthMap.put('\u3077', "\uFF8C\uFF9F");

        sHalfWidthMap.put('\u3078', "\uFF8D");

        sHalfWidthMap.put('\u3079', "\uFF8D\uFF9E");

        sHalfWidthMap.put('\u307A', "\uFF8D\uFF9F");

        sHalfWidthMap.put('\u307B', "\uFF8E");

        sHalfWidthMap.put('\u307C', "\uFF8E\uFF9E");

        sHalfWidthMap.put('\u307D', "\uFF8E\uFF9F");

        sHalfWidthMap.put('\u307E', "\uFF8F");

        sHalfWidthMap.put('\u307F', "\uFF90");

        sHalfWidthMap.put('\u3080', "\uFF91");

        sHalfWidthMap.put('\u3081', "\uFF92");

        sHalfWidthMap.put('\u3082', "\uFF93");

        sHalfWidthMap.put('\u3083', "\uFF6C");

        sHalfWidthMap.put('\u3084', "\uFF94");

        sHalfWidthMap.put('\u3085', "\uFF6D");

        sHalfWidthMap.put('\u3086', "\uFF95");

        sHalfWidthMap.put('\u3087', "\uFF6E");

        sHalfWidthMap.put('\u3088', "\uFF96");

        sHalfWidthMap.put('\u3089', "\uFF97");

        sHalfWidthMap.put('\u308A', "\uFF98");

        sHalfWidthMap.put('\u308B', "\uFF99");

        sHalfWidthMap.put('\u308C', "\uFF9A");

        sHalfWidthMap.put('\u308D', "\uFF9B");

        sHalfWidthMap.put('\u308E', "\uFF9C");

        sHalfWidthMap.put('\u308F', "\uFF9C");

        sHalfWidthMap.put('\u3090', "\uFF72");

        sHalfWidthMap.put('\u3091', "\uFF74");

        sHalfWidthMap.put('\u3092', "\uFF66");

        sHalfWidthMap.put('\u3093', "\uFF9D");

        sHalfWidthMap.put('\u309B', "\uFF9E");

        sHalfWidthMap.put('\u309C', "\uFF9F");

        sHalfWidthMap.put('\u30A1', "\uFF67");

        sHalfWidthMap.put('\u30A2', "\uFF71");

        sHalfWidthMap.put('\u30A3', "\uFF68");

        sHalfWidthMap.put('\u30A4', "\uFF72");

        sHalfWidthMap.put('\u30A5', "\uFF69");

        sHalfWidthMap.put('\u30A6', "\uFF73");

        sHalfWidthMap.put('\u30A7', "\uFF6A");

        sHalfWidthMap.put('\u30A8', "\uFF74");

        sHalfWidthMap.put('\u30A9', "\uFF6B");

        sHalfWidthMap.put('\u30AA', "\uFF75");

        sHalfWidthMap.put('\u30AB', "\uFF76");

        sHalfWidthMap.put('\u30AC', "\uFF76\uFF9E");

        sHalfWidthMap.put('\u30AD', "\uFF77");

        sHalfWidthMap.put('\u30AE', "\uFF77\uFF9E");

        sHalfWidthMap.put('\u30AF', "\uFF78");

        sHalfWidthMap.put('\u30B0', "\uFF78\uFF9E");

        sHalfWidthMap.put('\u30B1', "\uFF79");

        sHalfWidthMap.put('\u30B2', "\uFF79\uFF9E");

        sHalfWidthMap.put('\u30B3', "\uFF7A");

        sHalfWidthMap.put('\u30B4', "\uFF7A\uFF9E");

        sHalfWidthMap.put('\u30B5', "\uFF7B");

        sHalfWidthMap.put('\u30B6', "\uFF7B\uFF9E");

        sHalfWidthMap.put('\u30B7', "\uFF7C");

        sHalfWidthMap.put('\u30B8', "\uFF7C\uFF9E");

        sHalfWidthMap.put('\u30B9', "\uFF7D");

        sHalfWidthMap.put('\u30BA', "\uFF7D\uFF9E");

        sHalfWidthMap.put('\u30BB', "\uFF7E");

        sHalfWidthMap.put('\u30BC', "\uFF7E\uFF9E");

        sHalfWidthMap.put('\u30BD', "\uFF7F");

        sHalfWidthMap.put('\u30BE', "\uFF7F\uFF9E");

        sHalfWidthMap.put('\u30BF', "\uFF80");

        sHalfWidthMap.put('\u30C0', "\uFF80\uFF9E");

        sHalfWidthMap.put('\u30C1', "\uFF81");

        sHalfWidthMap.put('\u30C2', "\uFF81\uFF9E");

        sHalfWidthMap.put('\u30C3', "\uFF6F");

        sHalfWidthMap.put('\u30C4', "\uFF82");

        sHalfWidthMap.put('\u30C5', "\uFF82\uFF9E");

        sHalfWidthMap.put('\u30C6', "\uFF83");

        sHalfWidthMap.put('\u30C7', "\uFF83\uFF9E");

        sHalfWidthMap.put('\u30C8', "\uFF84");

        sHalfWidthMap.put('\u30C9', "\uFF84\uFF9E");

        sHalfWidthMap.put('\u30CA', "\uFF85");

        sHalfWidthMap.put('\u30CB', "\uFF86");

        sHalfWidthMap.put('\u30CC', "\uFF87");

        sHalfWidthMap.put('\u30CD', "\uFF88");

        sHalfWidthMap.put('\u30CE', "\uFF89");

        sHalfWidthMap.put('\u30CF', "\uFF8A");

        sHalfWidthMap.put('\u30D0', "\uFF8A\uFF9E");

        sHalfWidthMap.put('\u30D1', "\uFF8A\uFF9F");

        sHalfWidthMap.put('\u30D2', "\uFF8B");

        sHalfWidthMap.put('\u30D3', "\uFF8B\uFF9E");

        sHalfWidthMap.put('\u30D4', "\uFF8B\uFF9F");

        sHalfWidthMap.put('\u30D5', "\uFF8C");

        sHalfWidthMap.put('\u30D6', "\uFF8C\uFF9E");

        sHalfWidthMap.put('\u30D7', "\uFF8C\uFF9F");

        sHalfWidthMap.put('\u30D8', "\uFF8D");

        sHalfWidthMap.put('\u30D9', "\uFF8D\uFF9E");

        sHalfWidthMap.put('\u30DA', "\uFF8D\uFF9F");

        sHalfWidthMap.put('\u30DB', "\uFF8E");

        sHalfWidthMap.put('\u30DC', "\uFF8E\uFF9E");

        sHalfWidthMap.put('\u30DD', "\uFF8E\uFF9F");

        sHalfWidthMap.put('\u30DE', "\uFF8F");

        sHalfWidthMap.put('\u30DF', "\uFF90");

        sHalfWidthMap.put('\u30E0', "\uFF91");

        sHalfWidthMap.put('\u30E1', "\uFF92");

        sHalfWidthMap.put('\u30E2', "\uFF93");

        sHalfWidthMap.put('\u30E3', "\uFF6C");

        sHalfWidthMap.put('\u30E4', "\uFF94");

        sHalfWidthMap.put('\u30E5', "\uFF6D");

        sHalfWidthMap.put('\u30E6', "\uFF95");

        sHalfWidthMap.put('\u30E7', "\uFF6E");

        sHalfWidthMap.put('\u30E8', "\uFF96");

        sHalfWidthMap.put('\u30E9', "\uFF97");

        sHalfWidthMap.put('\u30EA', "\uFF98");

        sHalfWidthMap.put('\u30EB', "\uFF99");

        sHalfWidthMap.put('\u30EC', "\uFF9A");

        sHalfWidthMap.put('\u30ED', "\uFF9B");

        sHalfWidthMap.put('\u30EE', "\uFF9C");

        sHalfWidthMap.put('\u30EF', "\uFF9C");

        sHalfWidthMap.put('\u30F0', "\uFF72");

        sHalfWidthMap.put('\u30F1', "\uFF74");

        sHalfWidthMap.put('\u30F2', "\uFF66");

        sHalfWidthMap.put('\u30F3', "\uFF9D");

        sHalfWidthMap.put('\u30F4', "\uFF73\uFF9E");

        sHalfWidthMap.put('\u30F5', "\uFF76");

        sHalfWidthMap.put('\u30F6', "\uFF79");

        sHalfWidthMap.put('\u30FB', "\uFF65");

        sHalfWidthMap.put('\u30FC', "\uFF70");

        sHalfWidthMap.put('\uFF01', "!");

        sHalfWidthMap.put('\uFF02', "\"");

        sHalfWidthMap.put('\uFF03', "#");

        sHalfWidthMap.put('\uFF04', "$");

        sHalfWidthMap.put('\uFF05', "%");

        sHalfWidthMap.put('\uFF06', "&");

        sHalfWidthMap.put('\uFF07', "'");

        sHalfWidthMap.put('\uFF08', "(");

        sHalfWidthMap.put('\uFF09', ")");

        sHalfWidthMap.put('\uFF0A', "*");

        sHalfWidthMap.put('\uFF0B', "+");

        sHalfWidthMap.put('\uFF0C', ",");

        sHalfWidthMap.put('\uFF0D', "-");

        sHalfWidthMap.put('\uFF0E', ".");

        sHalfWidthMap.put('\uFF0F', "/");

        sHalfWidthMap.put('\uFF10', "0");

        sHalfWidthMap.put('\uFF11', "1");

        sHalfWidthMap.put('\uFF12', "2");

        sHalfWidthMap.put('\uFF13', "3");

        sHalfWidthMap.put('\uFF14', "4");

        sHalfWidthMap.put('\uFF15', "5");

        sHalfWidthMap.put('\uFF16', "6");

        sHalfWidthMap.put('\uFF17', "7");

        sHalfWidthMap.put('\uFF18', "8");

        sHalfWidthMap.put('\uFF19', "9");

        sHalfWidthMap.put('\uFF1A', ":");

        sHalfWidthMap.put('\uFF1B', ";");

        sHalfWidthMap.put('\uFF1C', "<");

        sHalfWidthMap.put('\uFF1D', "=");

        sHalfWidthMap.put('\uFF1E', ">");

        sHalfWidthMap.put('\uFF1F', "?");

        sHalfWidthMap.put('\uFF20', "@");

        sHalfWidthMap.put('\uFF21', "A");

        sHalfWidthMap.put('\uFF22', "B");

        sHalfWidthMap.put('\uFF23', "C");

        sHalfWidthMap.put('\uFF24', "D");

        sHalfWidthMap.put('\uFF25', "E");

        sHalfWidthMap.put('\uFF26', "F");

        sHalfWidthMap.put('\uFF27', "G");

        sHalfWidthMap.put('\uFF28', "H");

        sHalfWidthMap.put('\uFF29', "I");

        sHalfWidthMap.put('\uFF2A', "J");

        sHalfWidthMap.put('\uFF2B', "K");

        sHalfWidthMap.put('\uFF2C', "L");

        sHalfWidthMap.put('\uFF2D', "M");

        sHalfWidthMap.put('\uFF2E', "N");

        sHalfWidthMap.put('\uFF2F', "O");

        sHalfWidthMap.put('\uFF30', "P");

        sHalfWidthMap.put('\uFF31', "Q");

        sHalfWidthMap.put('\uFF32', "R");

        sHalfWidthMap.put('\uFF33', "S");

        sHalfWidthMap.put('\uFF34', "T");

        sHalfWidthMap.put('\uFF35', "U");

        sHalfWidthMap.put('\uFF36', "V");

        sHalfWidthMap.put('\uFF37', "W");

        sHalfWidthMap.put('\uFF38', "X");

        sHalfWidthMap.put('\uFF39', "Y");

        sHalfWidthMap.put('\uFF3A', "Z");

        sHalfWidthMap.put('\uFF3B', "[");

        sHalfWidthMap.put('\uFF3C', "\\");

        sHalfWidthMap.put('\uFF3D', "]");

        sHalfWidthMap.put('\uFF3E', "^");

        sHalfWidthMap.put('\uFF3F', "_");

        sHalfWidthMap.put('\uFF41', "a");

        sHalfWidthMap.put('\uFF42', "b");

        sHalfWidthMap.put('\uFF43', "c");

        sHalfWidthMap.put('\uFF44', "d");

        sHalfWidthMap.put('\uFF45', "e");

        sHalfWidthMap.put('\uFF46', "f");

        sHalfWidthMap.put('\uFF47', "g");

        sHalfWidthMap.put('\uFF48', "h");

        sHalfWidthMap.put('\uFF49', "i");

        sHalfWidthMap.put('\uFF4A', "j");

        sHalfWidthMap.put('\uFF4B', "k");

        sHalfWidthMap.put('\uFF4C', "l");

        sHalfWidthMap.put('\uFF4D', "m");

        sHalfWidthMap.put('\uFF4E', "n");

        sHalfWidthMap.put('\uFF4F', "o");

        sHalfWidthMap.put('\uFF50', "p");

        sHalfWidthMap.put('\uFF51', "q");

        sHalfWidthMap.put('\uFF52', "r");

        sHalfWidthMap.put('\uFF53', "s");

        sHalfWidthMap.put('\uFF54', "t");

        sHalfWidthMap.put('\uFF55', "u");

        sHalfWidthMap.put('\uFF56', "v");

        sHalfWidthMap.put('\uFF57', "w");

        sHalfWidthMap.put('\uFF58', "x");

        sHalfWidthMap.put('\uFF59', "y");

        sHalfWidthMap.put('\uFF5A', "z");

        sHalfWidthMap.put('\uFF5B', "{");

        sHalfWidthMap.put('\uFF5C', "|");

        sHalfWidthMap.put('\uFF5D', "}");

        sHalfWidthMap.put('\uFF5E', "~");

        sHalfWidthMap.put('\uFF61', "\uFF61");

        sHalfWidthMap.put('\uFF62', "\uFF62");

        sHalfWidthMap.put('\uFF63', "\uFF63");

        sHalfWidthMap.put('\uFF64', "\uFF64");

        sHalfWidthMap.put('\uFF65', "\uFF65");

        sHalfWidthMap.put('\uFF66', "\uFF66");

        sHalfWidthMap.put('\uFF67', "\uFF67");

        sHalfWidthMap.put('\uFF68', "\uFF68");

        sHalfWidthMap.put('\uFF69', "\uFF69");

        sHalfWidthMap.put('\uFF6A', "\uFF6A");

        sHalfWidthMap.put('\uFF6B', "\uFF6B");

        sHalfWidthMap.put('\uFF6C', "\uFF6C");

        sHalfWidthMap.put('\uFF6D', "\uFF6D");

        sHalfWidthMap.put('\uFF6E', "\uFF6E");

        sHalfWidthMap.put('\uFF6F', "\uFF6F");

        sHalfWidthMap.put('\uFF70', "\uFF70");

        sHalfWidthMap.put('\uFF71', "\uFF71");

        sHalfWidthMap.put('\uFF72', "\uFF72");

        sHalfWidthMap.put('\uFF73', "\uFF73");

        sHalfWidthMap.put('\uFF74', "\uFF74");

        sHalfWidthMap.put('\uFF75', "\uFF75");

        sHalfWidthMap.put('\uFF76', "\uFF76");

        sHalfWidthMap.put('\uFF77', "\uFF77");

        sHalfWidthMap.put('\uFF78', "\uFF78");

        sHalfWidthMap.put('\uFF79', "\uFF79");

        sHalfWidthMap.put('\uFF7A', "\uFF7A");

        sHalfWidthMap.put('\uFF7B', "\uFF7B");

        sHalfWidthMap.put('\uFF7C', "\uFF7C");

        sHalfWidthMap.put('\uFF7D', "\uFF7D");

        sHalfWidthMap.put('\uFF7E', "\uFF7E");

        sHalfWidthMap.put('\uFF7F', "\uFF7F");

        sHalfWidthMap.put('\uFF80', "\uFF80");

        sHalfWidthMap.put('\uFF81', "\uFF81");

        sHalfWidthMap.put('\uFF82', "\uFF82");

        sHalfWidthMap.put('\uFF83', "\uFF83");

        sHalfWidthMap.put('\uFF84', "\uFF84");

        sHalfWidthMap.put('\uFF85', "\uFF85");

        sHalfWidthMap.put('\uFF86', "\uFF86");

        sHalfWidthMap.put('\uFF87', "\uFF87");

        sHalfWidthMap.put('\uFF88', "\uFF88");

        sHalfWidthMap.put('\uFF89', "\uFF89");

        sHalfWidthMap.put('\uFF8A', "\uFF8A");

        sHalfWidthMap.put('\uFF8B', "\uFF8B");

        sHalfWidthMap.put('\uFF8C', "\uFF8C");

        sHalfWidthMap.put('\uFF8D', "\uFF8D");

        sHalfWidthMap.put('\uFF8E', "\uFF8E");

        sHalfWidthMap.put('\uFF8F', "\uFF8F");

        sHalfWidthMap.put('\uFF90', "\uFF90");

        sHalfWidthMap.put('\uFF91', "\uFF91");

        sHalfWidthMap.put('\uFF92', "\uFF92");

        sHalfWidthMap.put('\uFF93', "\uFF93");

        sHalfWidthMap.put('\uFF94', "\uFF94");

        sHalfWidthMap.put('\uFF95', "\uFF95");

        sHalfWidthMap.put('\uFF96', "\uFF96");

        sHalfWidthMap.put('\uFF97', "\uFF97");

        sHalfWidthMap.put('\uFF98', "\uFF98");

        sHalfWidthMap.put('\uFF99', "\uFF99");

        sHalfWidthMap.put('\uFF9A', "\uFF9A");

        sHalfWidthMap.put('\uFF9B', "\uFF9B");

        sHalfWidthMap.put('\uFF9C', "\uFF9C");

        sHalfWidthMap.put('\uFF9D', "\uFF9D");

        sHalfWidthMap.put('\uFF9E', "\uFF9E");

        sHalfWidthMap.put('\uFF9F', "\uFF9F");

        sHalfWidthMap.put('\uFFE5', "\u005C\u005C");

    }



    /**

     * Return half-width version of that character if possible. Return null if not possible

     * @param ch input character

     * @return CharSequence object if the mapping for ch exists. Return null otherwise.

     */

    public static CharSequence tryGetHalfWidthText(char ch) {

        if (sHalfWidthMap.containsKey(ch)) {

            return sHalfWidthMap.get(ch);

        } else {

            return null;

        }

    }

}