diff options
Diffstat (limited to 'bundles/org.eclipse.wst.html.core/src/org/eclipse/wst/html/core/internal/contenttype/EncodingGuesser.java')
| -rw-r--r-- | bundles/org.eclipse.wst.html.core/src/org/eclipse/wst/html/core/internal/contenttype/EncodingGuesser.java | 173 |
1 files changed, 0 insertions, 173 deletions
diff --git a/bundles/org.eclipse.wst.html.core/src/org/eclipse/wst/html/core/internal/contenttype/EncodingGuesser.java b/bundles/org.eclipse.wst.html.core/src/org/eclipse/wst/html/core/internal/contenttype/EncodingGuesser.java deleted file mode 100644 index eb46433f48..0000000000 --- a/bundles/org.eclipse.wst.html.core/src/org/eclipse/wst/html/core/internal/contenttype/EncodingGuesser.java +++ /dev/null @@ -1,173 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2001, 2005 IBM Corporation and others. - * All rights reserved. This program and the accompanying materials - * are made available under the terms of the Eclipse Public License v1.0 - * which accompanies this distribution, and is available at - * http://www.eclipse.org/legal/epl-v10.html - * - * Contributors: - * IBM Corporation - initial API and implementation - * Jens Lukowski/Innoopract - initial renaming/restructuring - * - *******************************************************************************/ -package org.eclipse.wst.html.core.internal.contenttype; - -/** - * - * This is ported from PageDesigner's hpbcom/Kanji.cpp's - * Kanji::guess_kanji_code(), - * - */ -public class EncodingGuesser { - private static final int ASCII = 0; // ASCII - // ISO-2022-JP - private static final int ASCII_IN = 8; // This is after ISO2022's change - // Shift-JIS - private static final int EUC_HALFKANA = 6; // This is Half Kana in EUC-JP - private static final int EUC_JP = 3; // This is EUC-JP - private static final int ISO2022_JP = 4; // This is ISO-2022-JP - private static final int JIS_HALFKANA = 7; // THis is Half Kana in - private static final byte KT_EUC1 = 0x40; - private static final byte KT_EUC2 = (byte) 0x80; - // ASCII - private static final byte KT_JIN = 0x01; - private static final byte KT_JOUT = 0x02; - // private static final byte KT_ESC = 0x04; - // private static final byte KT_JIS = 0x08; - private static final byte KT_SFT1 = 0x10; - private static final byte KT_SFT2 = 0x20; - private static final byte ktype[] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 00 */ - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 10 */ - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08, 0x08, 0x08, 0x09, 0x08, 0x08, 0x08, /* !"#$%&' *//* " */ - 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, /* ()*+,-./ */ - 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, /* 01234567 */ - 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, /* 89:; <=>? */ - 0x29, 0x28, 0x2b, 0x28, 0x28, 0x28, 0x28, 0x28, /* @ABCDEFG */ - 0x2a, 0x28, 0x2a, 0x28, 0x28, 0x28, 0x28, 0x28, /* HIJKLMNO */ - 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, /* PQRSTUVW */ - 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, /* XYZ[\]^_ */ - 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, /* abcdefg */ - 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, /* hijklmno */ - 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, /* pqrstuvw */ - 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x00, /* xyz{|}~ */ - 0x20, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, /* 80 */ - 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, /* 90 */ - 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x20, (byte) 0xe0, (byte) 0xe0, (byte) 0xe0, (byte) 0xe0, (byte) 0xe0, (byte) 0xe0, (byte) 0xe0, /* A0 */ - (byte) 0xe0, (byte) 0xe0, (byte) 0xe0, (byte) 0xe0, (byte) 0xe0, (byte) 0xe0, (byte) 0xe0, (byte) 0xe0, (byte) 0xe0, (byte) 0xe0, (byte) 0xe0, (byte) 0xe0, (byte) 0xe0, (byte) 0xe0, (byte) 0xe0, (byte) 0xe0, /* B0 */ - (byte) 0xe0, (byte) 0xe0, (byte) 0xe0, (byte) 0xe0, (byte) 0xe0, (byte) 0xe0, (byte) 0xe0, (byte) 0xe0, (byte) 0xe0, (byte) 0xe0, (byte) 0xe0, (byte) 0xe0, (byte) 0xe0, (byte) 0xe0, (byte) 0xe0, (byte) 0xe0, /* C0 */ - (byte) 0xe0, (byte) 0xe0, (byte) 0xe0, (byte) 0xe0, (byte) 0xe0, (byte) 0xe0, (byte) 0xe0, (byte) 0xe0, (byte) 0xe0, (byte) 0xe0, (byte) 0xe0, (byte) 0xe0, (byte) 0xe0, (byte) 0xe0, (byte) 0xe0, (byte) 0xe0, /* D0 */ - (byte) 0xe0, (byte) 0xe0, (byte) 0xe0, (byte) 0xe0, (byte) 0xe0, (byte) 0xe0, (byte) 0xe0, (byte) 0xe0, (byte) 0xf0, (byte) 0xf0, (byte) 0xf0, (byte) 0xf0, (byte) 0xf0, (byte) 0xf0, (byte) 0xf0, (byte) 0xf0, /* E0 */ - (byte) 0xf0, (byte) 0xf0, (byte) 0xf0, (byte) 0xf0, (byte) 0xf0, (byte) 0xf0, (byte) 0xf0, (byte) 0xf0, (byte) 0xf0, (byte) 0xf0, (byte) 0xf0, (byte) 0xf0, (byte) 0xf0, (byte) 0xf0, (byte) 0xf0, (byte) 0xf0, /* F0 */ - (byte) 0xf0, (byte) 0xf0, (byte) 0xf0, (byte) 0xf0, (byte) 0xf0, (byte) 0xc0, (byte) 0xc0, 0x00,}; - // private static final int ISO8859_1 = 1; // ISO-1 - private static final int SHIFT_JIS = 2; // This is Shift-JIS - private static final int SJIS_HALFKANA = 5; // This is Half Kana in - - /** - * Currently, only Japanese encodings are supported. - */ - private static final int UNKNOWN = -1; // Unknown - - /** - * @return java.lang.String - * @param code - * int - * - * Convert private int to IANA Encoding name. - */ - private static String convertToIANAEncodingName(int code) { - String encoding = null; - - switch (code) { - case SHIFT_JIS : - case SJIS_HALFKANA : - encoding = "Shift_JIS";//$NON-NLS-1$ - break; - case EUC_JP : - case EUC_HALFKANA : - encoding = "EUC-JP";//$NON-NLS-1$ - break; - case ISO2022_JP : - case JIS_HALFKANA : - encoding = "ISO-2022-JP";//$NON-NLS-1$ - default : - break; - } - - return encoding; - } - - /** - * Return guessed Java Encoding name target: bytes to be inspected length: - * length of target - */ - public static String guessEncoding(byte[] target, int length) { - int code = UNKNOWN; - - // Currently, only Japanese is supported. - String system_ctype = java.util.Locale.getDefault().getLanguage(); - String jp_ctype = java.util.Locale.JAPANESE.getLanguage(); - if (system_ctype.compareTo(jp_ctype) == 0) { - // Ok, I'm under ja_JP. - code = ASCII; - int pos = 0; - while ((code == ASCII) && (length > 0)) { - int ch1 = target[pos]; - ch1 = ch1 & 0x000000FF; - int ch2 = (length >= 2) ? target[pos + 1] : 0; - ch2 = ch2 & 0x000000FF; - int ch3 = (length >= 3) ? target[pos + 2] : 0; - ch3 = ch3 & 0x000000FF; - code = guessJapaneseKanjiCode(ch1, ch2, ch3, 0); - pos++; - length--; - } - switch (code) { - case ISO2022_JP : - case JIS_HALFKANA : - code = ISO2022_JP; - break; - case EUC_JP : - code = EUC_JP; - break; - default : - code = SHIFT_JIS; - } - } - return (convertToIANAEncodingName(code)); - } - - /** - * Guess the encoding. halfkana_flag = 0x01 ( detect SJIS half kana ) - * halfkana_flag = 0x02 ( detect EUC half kana ) - */ - private static int guessJapaneseKanjiCode(int ch1, int ch2, int ch3, int halfkana_flag) { - boolean sjis_hankaku_flag = ((halfkana_flag & 0x01) != 0) ? true : false; - boolean euc_hankaku_flag = ((halfkana_flag & 0x02) != 0) ? true : false; - - if (ch1 == 0) - return UNKNOWN; - if (sjis_hankaku_flag && ch1 >= 0xa1 && ch1 <= 0xdf) - return SJIS_HALFKANA; - else if (euc_hankaku_flag && ch1 == 0x8e && ch2 >= 0xa1 && ch2 <= 0xdf) - return EUC_HALFKANA; - else if (((ktype[ch1] & KT_SFT1) != 0) && ((ktype[ch2] & KT_SFT2) != 0)) - return SHIFT_JIS; - else if (((ktype[ch1] & KT_EUC1) != 0) && ((ktype[ch2] & KT_EUC2) != 0)) - return EUC_JP; - else if (ch1 == 0x1b && ((ktype[ch2] & KT_JIN) != 0)) - return ISO2022_JP; - else if (ch1 >= 0xa1 && ch1 <= 0xdf) - return SJIS_HALFKANA; - else if (ch1 == 0x1b && ch2 == 0x28/* '(' */&& ch3 == 0x49/* 'I' */) - return JIS_HALFKANA; - else if (ch1 == 0x1b && ch2 == 0x28/* '(' */&& ((ktype[ch3] & KT_JOUT) != 0)) - return ASCII_IN; - - return ASCII; - } - - public EncodingGuesser() { - super(); - } -} |