Bring the numeric CodePage support from HPSF (constants and converters) out to a new Util class, so that HSMF can later use it
git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1497032 13f79535-47bb-0310-9956-ffa450edef68
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Nick Burch
parent
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commit
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src/java/org/apache/poi/util/CodePageUtil.java
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src/java/org/apache/poi/util/CodePageUtil.java
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/* ====================================================================
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Licensed to the Apache Software Foundation (ASF) under one or more
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contributor license agreements. See the NOTICE file distributed with
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this work for additional information regarding copyright ownership.
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The ASF licenses this file to You under the Apache License, Version 2.0
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(the "License"); you may not use this file except in compliance with
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the License. You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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==================================================================== */
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package org.apache.poi.util;
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import java.io.UnsupportedEncodingException;
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/**
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* Utilities for working with Microsoft CodePages.
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*
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* <p>Provides constants for understanding numeric codepages,
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* along with utilities to translate these into Java Character Sets.</p>
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*/
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public class CodePageUtil
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{
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/** <p>Codepage 037, a special case</p> */
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public static final int CP_037 = 37;
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/** <p>Codepage for SJIS</p> */
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public static final int CP_SJIS = 932;
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/** <p>Codepage for GBK, aka MS936</p> */
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public static final int CP_GBK = 936;
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/** <p>Codepage for MS949</p> */
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public static final int CP_MS949 = 949;
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/** <p>Codepage for UTF-16</p> */
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public static final int CP_UTF16 = 1200;
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/** <p>Codepage for UTF-16 big-endian</p> */
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public static final int CP_UTF16_BE = 1201;
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/** <p>Codepage for Windows 1250</p> */
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public static final int CP_WINDOWS_1250 = 1250;
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/** <p>Codepage for Windows 1251</p> */
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public static final int CP_WINDOWS_1251 = 1251;
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/** <p>Codepage for Windows 1252</p> */
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public static final int CP_WINDOWS_1252 = 1252;
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/** <p>Codepage for Windows 1253</p> */
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public static final int CP_WINDOWS_1253 = 1253;
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/** <p>Codepage for Windows 1254</p> */
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public static final int CP_WINDOWS_1254 = 1254;
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/** <p>Codepage for Windows 1255</p> */
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public static final int CP_WINDOWS_1255 = 1255;
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/** <p>Codepage for Windows 1256</p> */
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public static final int CP_WINDOWS_1256 = 1256;
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/** <p>Codepage for Windows 1257</p> */
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public static final int CP_WINDOWS_1257 = 1257;
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/** <p>Codepage for Windows 1258</p> */
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public static final int CP_WINDOWS_1258 = 1258;
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/** <p>Codepage for Johab</p> */
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public static final int CP_JOHAB = 1361;
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/** <p>Codepage for Macintosh Roman (Java: MacRoman)</p> */
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public static final int CP_MAC_ROMAN = 10000;
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/** <p>Codepage for Macintosh Japan (Java: unknown - use SJIS, cp942 or
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* cp943)</p> */
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public static final int CP_MAC_JAPAN = 10001;
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/** <p>Codepage for Macintosh Chinese Traditional (Java: unknown - use Big5,
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* MS950, or cp937)</p> */
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public static final int CP_MAC_CHINESE_TRADITIONAL = 10002;
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/** <p>Codepage for Macintosh Korean (Java: unknown - use EUC_KR or
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* cp949)</p> */
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public static final int CP_MAC_KOREAN = 10003;
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/** <p>Codepage for Macintosh Arabic (Java: MacArabic)</p> */
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public static final int CP_MAC_ARABIC = 10004;
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/** <p>Codepage for Macintosh Hebrew (Java: MacHebrew)</p> */
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public static final int CP_MAC_HEBREW = 10005;
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/** <p>Codepage for Macintosh Greek (Java: MacGreek)</p> */
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public static final int CP_MAC_GREEK = 10006;
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/** <p>Codepage for Macintosh Cyrillic (Java: MacCyrillic)</p> */
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public static final int CP_MAC_CYRILLIC = 10007;
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/** <p>Codepage for Macintosh Chinese Simplified (Java: unknown - use
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* EUC_CN, ISO2022_CN_GB, MS936 or cp935)</p> */
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public static final int CP_MAC_CHINESE_SIMPLE = 10008;
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/** <p>Codepage for Macintosh Romanian (Java: MacRomania)</p> */
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public static final int CP_MAC_ROMANIA = 10010;
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/** <p>Codepage for Macintosh Ukrainian (Java: MacUkraine)</p> */
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public static final int CP_MAC_UKRAINE = 10017;
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/** <p>Codepage for Macintosh Thai (Java: MacThai)</p> */
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public static final int CP_MAC_THAI = 10021;
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/** <p>Codepage for Macintosh Central Europe (Latin-2)
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* (Java: MacCentralEurope)</p> */
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public static final int CP_MAC_CENTRAL_EUROPE = 10029;
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/** <p>Codepage for Macintosh Iceland (Java: MacIceland)</p> */
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public static final int CP_MAC_ICELAND = 10079;
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/** <p>Codepage for Macintosh Turkish (Java: MacTurkish)</p> */
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public static final int CP_MAC_TURKISH = 10081;
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/** <p>Codepage for Macintosh Croatian (Java: MacCroatian)</p> */
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public static final int CP_MAC_CROATIAN = 10082;
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/** <p>Codepage for US-ASCII</p> */
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public static final int CP_US_ACSII = 20127;
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/** <p>Codepage for KOI8-R</p> */
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public static final int CP_KOI8_R = 20866;
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/** <p>Codepage for ISO-8859-1</p> */
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public static final int CP_ISO_8859_1 = 28591;
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/** <p>Codepage for ISO-8859-2</p> */
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public static final int CP_ISO_8859_2 = 28592;
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/** <p>Codepage for ISO-8859-3</p> */
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public static final int CP_ISO_8859_3 = 28593;
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/** <p>Codepage for ISO-8859-4</p> */
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public static final int CP_ISO_8859_4 = 28594;
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/** <p>Codepage for ISO-8859-5</p> */
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public static final int CP_ISO_8859_5 = 28595;
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/** <p>Codepage for ISO-8859-6</p> */
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public static final int CP_ISO_8859_6 = 28596;
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/** <p>Codepage for ISO-8859-7</p> */
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public static final int CP_ISO_8859_7 = 28597;
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/** <p>Codepage for ISO-8859-8</p> */
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public static final int CP_ISO_8859_8 = 28598;
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/** <p>Codepage for ISO-8859-9</p> */
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public static final int CP_ISO_8859_9 = 28599;
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/** <p>Codepage for ISO-2022-JP</p> */
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public static final int CP_ISO_2022_JP1 = 50220;
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/** <p>Another codepage for ISO-2022-JP</p> */
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public static final int CP_ISO_2022_JP2 = 50221;
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/** <p>Yet another codepage for ISO-2022-JP</p> */
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public static final int CP_ISO_2022_JP3 = 50222;
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/** <p>Codepage for ISO-2022-KR</p> */
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public static final int CP_ISO_2022_KR = 50225;
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/** <p>Codepage for EUC-JP</p> */
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public static final int CP_EUC_JP = 51932;
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/** <p>Codepage for EUC-KR</p> */
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public static final int CP_EUC_KR = 51949;
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/** <p>Codepage for GB2312</p> */
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public static final int CP_GB2312 = 52936;
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/** <p>Codepage for GB18030</p> */
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public static final int CP_GB18030 = 54936;
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/** <p>Another codepage for US-ASCII</p> */
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public static final int CP_US_ASCII2 = 65000;
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/** <p>Codepage for UTF-8</p> */
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public static final int CP_UTF8 = 65001;
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/** <p>Codepage for Unicode</p> */
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public static final int CP_UNICODE = CP_UTF16;
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/**
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* Converts a string into bytes, in the equivalent character encoding
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* to the supplied codepage number.
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* @param string The string to convert
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* @param codepage The codepage number
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*/
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public static byte[] getBytesInCodePage(final String string, final int codepage)
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throws UnsupportedEncodingException
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{
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String encoding = codepageToEncoding(codepage);
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return string.getBytes(encoding);
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}
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/**
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* Converts the bytes into a String, based on the equivalent character encoding
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* to the supplied codepage number.
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* @param string The byte of the string to convert
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* @param codepage The codepage number
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*/
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public static String getStringFromCodePage(final byte[] string, final int codepage)
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throws UnsupportedEncodingException
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{
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return getStringFromCodePage(string, 0, string.length, codepage);
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}
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/**
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* Converts the bytes into a String, based on the equivalent character encoding
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* to the supplied codepage number.
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* @param string The byte of the string to convert
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* @param codepage The codepage number
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*/
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public static String getStringFromCodePage(final byte[] string, final int offset,
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final int length, final int codepage) throws UnsupportedEncodingException
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{
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String encoding = codepageToEncoding(codepage);
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return new String(string, offset, length, encoding);
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}
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/**
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* <p>Turns a codepage number into the equivalent character encoding's
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* name.</p>
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*
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* @param codepage The codepage number
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*
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* @return The character encoding's name. If the codepage number is 65001,
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* the encoding name is "UTF-8". All other positive numbers are mapped to
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* "cp" followed by the number, e.g. if the codepage number is 1252 the
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* returned character encoding name will be "cp1252".
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*
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* @exception UnsupportedEncodingException if the specified codepage is
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* less than zero.
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*/
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public static String codepageToEncoding(final int codepage)
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throws UnsupportedEncodingException
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{
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if (codepage <= 0)
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throw new UnsupportedEncodingException("Codepage number may not be " + codepage);
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switch (codepage) {
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case CP_UTF16:
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return "UTF-16";
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case CP_UTF16_BE:
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return "UTF-16BE";
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case CP_UTF8:
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return "UTF-8";
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case CP_037:
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return "cp037";
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case CP_GBK:
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return "GBK";
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case CP_MS949:
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return "ms949";
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case CP_WINDOWS_1250:
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return "windows-1250";
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case CP_WINDOWS_1251:
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return "windows-1251";
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case CP_WINDOWS_1252:
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return "windows-1252";
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case CP_WINDOWS_1253:
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return "windows-1253";
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case CP_WINDOWS_1254:
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return "windows-1254";
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case CP_WINDOWS_1255:
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return "windows-1255";
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case CP_WINDOWS_1256:
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return "windows-1256";
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case CP_WINDOWS_1257:
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return "windows-1257";
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case CP_WINDOWS_1258:
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return "windows-1258";
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case CP_JOHAB:
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return "johab";
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case CP_MAC_ROMAN:
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return "MacRoman";
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case CP_MAC_JAPAN:
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return "SJIS";
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case CP_MAC_CHINESE_TRADITIONAL:
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return "Big5";
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case CP_MAC_KOREAN:
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return "EUC-KR";
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case CP_MAC_ARABIC:
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return "MacArabic";
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case CP_MAC_HEBREW:
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return "MacHebrew";
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case CP_MAC_GREEK:
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return "MacGreek";
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case CP_MAC_CYRILLIC:
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return "MacCyrillic";
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case CP_MAC_CHINESE_SIMPLE:
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return "EUC_CN";
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case CP_MAC_ROMANIA:
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return "MacRomania";
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case CP_MAC_UKRAINE:
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return "MacUkraine";
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case CP_MAC_THAI:
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return "MacThai";
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case CP_MAC_CENTRAL_EUROPE:
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return "MacCentralEurope";
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case CP_MAC_ICELAND:
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return "MacIceland";
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case CP_MAC_TURKISH:
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return "MacTurkish";
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case CP_MAC_CROATIAN:
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return "MacCroatian";
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case CP_US_ACSII:
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case CP_US_ASCII2:
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return "US-ASCII";
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case CP_KOI8_R:
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return "KOI8-R";
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case CP_ISO_8859_1:
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return "ISO-8859-1";
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case CP_ISO_8859_2:
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return "ISO-8859-2";
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case CP_ISO_8859_3:
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return "ISO-8859-3";
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case CP_ISO_8859_4:
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return "ISO-8859-4";
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case CP_ISO_8859_5:
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return "ISO-8859-5";
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case CP_ISO_8859_6:
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return "ISO-8859-6";
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case CP_ISO_8859_7:
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return "ISO-8859-7";
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case CP_ISO_8859_8:
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return "ISO-8859-8";
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case CP_ISO_8859_9:
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return "ISO-8859-9";
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case CP_ISO_2022_JP1:
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case CP_ISO_2022_JP2:
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case CP_ISO_2022_JP3:
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return "ISO-2022-JP";
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case CP_ISO_2022_KR:
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return "ISO-2022-KR";
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case CP_EUC_JP:
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return "EUC-JP";
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case CP_EUC_KR:
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return "EUC-KR";
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case CP_GB2312:
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return "GB2312";
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case CP_GB18030:
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return "GB18030";
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case CP_SJIS:
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return "SJIS";
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default:
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return "cp" + codepage;
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}
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}
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}
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