mirror of
https://github.com/rn10950/RetroZilla.git
synced 2024-09-19 19:50:18 +02:00
329 lines
12 KiB
C++
329 lines
12 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* ***** BEGIN LICENSE BLOCK *****
|
|
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
|
|
*
|
|
* The contents of this file are subject to the Mozilla Public License Version
|
|
* 1.1 (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.mozilla.org/MPL/
|
|
*
|
|
* Software distributed under the License is distributed on an "AS IS" basis,
|
|
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
|
|
* for the specific language governing rights and limitations under the
|
|
* License.
|
|
*
|
|
* The Original Code is Mozilla Communicator client code.
|
|
*
|
|
* The Initial Developer of the Original Code is
|
|
* Netscape Communications Corporation.
|
|
* Portions created by the Initial Developer are Copyright (C) 2002
|
|
* the Initial Developer. All Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
* Simon Montagu <smontagu@netscape.com>
|
|
*
|
|
* Alternatively, the contents of this file may be used under the terms of
|
|
* either of the GNU General Public License Version 2 or later (the "GPL"),
|
|
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
|
|
* in which case the provisions of the GPL or the LGPL are applicable instead
|
|
* of those above. If you wish to allow use of your version of this file only
|
|
* under the terms of either the GPL or the LGPL, and not to allow others to
|
|
* use your version of this file under the terms of the MPL, indicate your
|
|
* decision by deleting the provisions above and replace them with the notice
|
|
* and other provisions required by the GPL or the LGPL. If you do not delete
|
|
* the provisions above, a recipient may use your version of this file under
|
|
* the terms of any one of the MPL, the GPL or the LGPL.
|
|
*
|
|
* ***** END LICENSE BLOCK ***** */
|
|
|
|
|
|
#include "nsUCConstructors.h"
|
|
#include "nsUnicodeToLangBoxArabic16.h"
|
|
|
|
#include "nsISupports.h"
|
|
|
|
// This table is based on http://www.langbox.com/arabic/FontSet_ISO8859-6-16.html
|
|
// Codepoints not in Unicode are mapped to 0x3F
|
|
static const unsigned char uni2lbox [] =
|
|
{
|
|
0x6B, // U+FE70 ARABIC FATHATAN ISOLATED FORM
|
|
0x90, // U+FE71 ARABIC FATHATAN ON TATWEEL
|
|
0x6C, // U+FE72 ARABIC DAMMATAN ISOLATED FORM
|
|
0x3F, // U+FE73
|
|
0x6D, // U+FE74 ARABIC KASRATAN ISOLATED FORM
|
|
0x3F, // U+FE75
|
|
0x6E, // U+FE76 ARABIC FATHA ISOLATED FORM
|
|
0x93, // U+FE77 ARABIC FATHA ON TATWEEL
|
|
0x6F, // U+FE78 ARABIC DAMMA ISOLATED FORM
|
|
0x94, // U+FE79 ARABIC DAMMA ON TATWEEL
|
|
0x70, // U+FE7A ARABIC KASRA ISOLATED FORM
|
|
0x95, // U+FE7B ARABIC KASRA ON TATWEEL
|
|
0x71, // U+FE7C ARABIC SHADDA ISOLATED FORM
|
|
0x97, // U+FE7D ARABIC SHADDA ON TATWEEL
|
|
0x72, // U+FE7E ARABIC SUKUN ISOLATED FORM
|
|
0x96, // U+FE7F ARABIC SUKUN ON TATWEEL
|
|
0x41, // U+FE80 ARABIC HAMZA ISOLATED FORM
|
|
0x42, // U+FE81 ARABIC LIGATURE MADDA ON ALEF ISOLATED FORM
|
|
0xA1, // U+FE82 ARABIC LIGATURE MADDA ON ALEF FINAL FORM
|
|
0x43, // U+FE83 ARABIC LIGATURE HAMZA ON ALEF ISOLATED FORM
|
|
0xA2, // U+FE84 ARABIC LIGATURE HAMZA ON ALEF FINAL FORM
|
|
0x44, // U+FE85 ARABIC LIGATURE HAMZA ON WAW ISOLATED FORM
|
|
0xA3, // U+FE86 ARABIC LIGATURE HAMZA ON WAW FINAL FORM
|
|
0x45, // U+FE87 ARABIC LIGATURE HAMZA UNDER ALEF ISOLATED FORM
|
|
0xA4, // U+FE88 ARABIC LIGATURE HAMZA UNDER ALEF FINAL FORM
|
|
0x46, // U+FE89 ARABIC LIGATURE HAMZA ON YEH ISOLATED FORM
|
|
0xF9, // U+FE8A ARABIC LIGATURE HAMZA ON YA FINAL FORM
|
|
0xF8, // U+FE8B ARABIC LIGATURE HAMZA ON YA INITIAL FORM
|
|
0xA0, // U+FE8C ARABIC LIGATURE HAMZA ON YA MEDIAL FORM
|
|
0x47, // U+FE8D ARABIC ALEF ISOLATED FORM
|
|
0xA5, // U+FE8E ARABIC ALEF FINAL FORM
|
|
0x48, // U+FE8F ARABIC BAA ISOLATED FORM
|
|
0xAE, // U+FE90 ARABIC BAA FINAL FORM
|
|
0xAC, // U+FE91 ARABIC BAA INITTIAL FORM
|
|
0xAD, // U+FE92 ARABIC BAA MEDIAL FORM
|
|
0x49, // U+FE93 ARABIC TAA MARBUTA ISOLATED FORM
|
|
0xB1, // U+FE94 ARABIC TAA MARBUTA FINAL FORM
|
|
0x4A, // U+FE95 ARABIC TAA ISOLATED FORM
|
|
0xB4, // U+FE96 ARABIC TAA FINAL FORM
|
|
0xB2, // U+FE97 ARABIC TAA INITIAL FORM
|
|
0xB3, // U+FE98 ARABIC TAA MEDIAL FORM
|
|
0x4B, // U+FE99 ARABIC THAA ISOLATED FORM
|
|
0xB7, // U+FE9A ARABIC THAA FINAL FORM
|
|
0xB5, // U+FE9B ARABIC THAA INITIAL FORM
|
|
0xB6, // U+FE9C ARABIC THAA MEDIAL FORM
|
|
0x4C, // U+FE9D ARABIC JEEM ISOLATED FORM
|
|
0xBA, // U+FE9E ARABIC JEEM FINAL FORM
|
|
0xB8, // U+FE9F ARABIC JEEM INITIAL FORM
|
|
0xB9, // U+FEA0 ARABIC JEEM MEDIAL FORM
|
|
0x4D, // U+FEA1 ARABIC HAA ISOLATED FORM
|
|
0xBD, // U+FEA2 ARABIC HAA FINAL FORM
|
|
0xBB, // U+FEA3 ARABIC HAA INITIAL FORM
|
|
0xBC, // U+FEA4 ARABIC HAA MEDIAL FORM
|
|
0x4E, // U+FEA5 ARABIC KHAA ISOLATED FORM
|
|
0xC0, // U+FEA6 ARABIC KHAA FINAL FORM
|
|
0xBE, // U+FEA7 ARABIC KHAA INITIAL FORM
|
|
0xBF, // U+FEA8 ARABIC KHAA MEDIAL FORM
|
|
0x4F, // U+FEA9 ARABIC DAL ISOLATED FORM
|
|
0xA6, // U+FEAA ARABIC DAL FINAL FORM
|
|
0x50, // U+FEAB ARABIC THAL ISOLATED FORM
|
|
0xA7, // U+FEAC ARABIC THAL FINAL FORM
|
|
0x51, // U+FEAD ARABIC RA ISOLATED FORM
|
|
0xA8, // U+FEAE ARABIC RA FINAL FORM
|
|
0x52, // U+FEAF ARABIC ZAIN ISOLATED FORM
|
|
0xA9, // U+FEB0 ARABIC ZAIN FINAL FORM
|
|
0x53, // U+FEB1 ARABIC SEEN ISOLATED FORM
|
|
0xC3, // U+FEB2 ARABIC SEEN FINAL FORM
|
|
0xC1, // U+FEB3 ARABIC SEEN INITIAL FORM
|
|
0xC2, // U+FEB4 ARABIC SEEN IMEDIAL FORM
|
|
0x54, // U+FEB5 ARABIC SHEEN ISOLATED FORM
|
|
0xC6, // U+FEB6 ARABIC SHEEN FINAL FORM
|
|
0xC4, // U+FEB7 ARABIC SHEEN INITIAL FORM
|
|
0xC5, // U+FEB8 ARABIC SHEEN MEDIAL FORM
|
|
0x55, // U+FEB9 ARABIC SAD ISOLATED FORM
|
|
0xC9, // U+FEBA ARABIC SAD FINAL FORM
|
|
0xC7, // U+FEBB ARABIC SAD INITIAL FORM
|
|
0xC8, // U+FEBC ARABIC SAD MEDIAL FORM
|
|
0x56, // U+FEBD ARABIC DAD ISOLATED FORM
|
|
0xCC, // U+FEBE ARABIC DAD FINAL FORM
|
|
0xCA, // U+FEBF ARABIC DAD INITIAL FORM
|
|
0xCB, // U+FEC0 ARABIC DAD MEDIAL FORM
|
|
0x57, // U+FEC1 ARABIC TAH ISOLATED FORM
|
|
0xCF, // U+FEC2 ARABIC TAH FINAL FORM
|
|
0xCD, // U+FEC3 ARABIC TAH INITIAL FORM
|
|
0xCE, // U+FEC4 ARABIC TAH MEDIAL FORM
|
|
0x58, // U+FEC5 ARABIC ZAH ISOLATED FORM
|
|
0xD2, // U+FEC6 ARABIC ZAH FINAL FORM
|
|
0xD0, // U+FEC7 ARABIC ZAH INITIAL FORM
|
|
0xD1, // U+FEC8 ARABIC ZAH MEDIAL FORM
|
|
0x59, // U+FEC9 ARABIC AIN ISOLATED FORM
|
|
0xD5, // U+FECA ARABIC AIN FINAL FORM
|
|
0xD3, // U+FECB ARABIC AIN INITIAL FORM
|
|
0xD4, // U+FECC ARABIC AIN MEDIAL FORM
|
|
0x5A, // U+FECD ARABIC GHAIN ISOLATED FORM
|
|
0xD8, // U+FECE ARABIC GHAIN FINAL FORM
|
|
0xD6, // U+FECF ARABIC GHAIN INITIAL FORM
|
|
0xD7, // U+FED0 ARABIC GHAIN MEDIAL FORM
|
|
0x61, // U+FED1 ARABIC FA ISOLATED FORM
|
|
0xDB, // U+FED2 ARABIC FEH FINAL FORM
|
|
0xD9, // U+FED3 ARABIC FEH INITIAL FORM
|
|
0xDA, // U+FED4 ARABIC FEH MEDIAL FORM
|
|
0x62, // U+FED5 ARABIC QAF ISOLATED FORM
|
|
0xDE, // U+FED6 ARABIC QAF FINAL FORM
|
|
0xDC, // U+FED7 ARABIC QAF INITIAL FORM
|
|
0xDD, // U+FED8 ARABIC QAF MEDIAL FORM
|
|
0x63, // U+FED9 ARABIC KAF ISOLATED FORM
|
|
0xE1, // U+FEDA ARABIC KAF FINAL FORM
|
|
0xDF, // U+FEDB ARABIC KAF INITIAL FORM
|
|
0xE0, // U+FEDC ARABIC KAF MEDIAL FORM
|
|
0x64, // U+FEDD ARABIC LAM ISOLATED FORM
|
|
0xE4, // U+FEDE ARABIC LAM FINAL FORM
|
|
0xE2, // U+FEDF ARABIC LAM INITIAL FORM
|
|
0xE3, // U+FEE0 ARABIC LAM MEDIAL FORM
|
|
0x65, // U+FEE1 ARABIC MEEM ISOLATED FORM
|
|
0xE7, // U+FEE2 ARABIC MEEM FINAL FORM
|
|
0xE5, // U+FEE3 ARABIC MEEM INITIAL FORM
|
|
0xE6, // U+FEE4 ARABIC MEEM MEDIAL FORM
|
|
0x66, // U+FEE5 ARABIC NOON ISOLATED FORM
|
|
0xEA, // U+FEE6 ARABIC NOON FINAL FORM
|
|
0xE8, // U+FEE7 ARABIC NOON INITIAL FORM
|
|
0xE9, // U+FEE8 ARABIC NOON MEDIAL FORM
|
|
0x67, // U+FEE9 ARABIC HA ISOLATED FORM
|
|
0xED, // U+FEEA ARABIC HEH FINAL FORM
|
|
0xEB, // U+FEEB ARABIC HEH INITIAL FORM
|
|
0xEC, // U+FEEC ARABIC HEH MEDIAL FORM
|
|
0x68, // U+FEED ARABIC WAW ISOLATED FORM
|
|
0xAA, // U+FEEE ARABIC WAW FINAL FORM
|
|
0x69, // U+FEEF ARABIC ALEF MAKSURA ISOLATED FORM
|
|
0xAB, // U+FEF0 ARABIC ALEF MAKSURA FINAL FORM
|
|
0x6A, // U+FEF1 ARABIC YEH ISOLATED FORM
|
|
0xF0, // U+FEF2 ARABIC YEH FINAL FORM
|
|
0xEE, // U+FEF3 ARABIC YEH INITIAL FORM
|
|
0xEF, // U+FEF4 ARABIC YEH MEDIAL FORM
|
|
0x76, // U+FEF5 ARABIC LIGATURE MADDA ON LAM ALEF ISOLATED FORM
|
|
0xFA, // U+FEF6 ARABIC LIGATURE MADDA ON LAM ON ALEF FINAL FORM
|
|
0x77, // U+FEF7 ARABIC LIGATURE HAMZA ON LAM ALEF ISOLATED FORM
|
|
0xFC, // U+FEF8 ARABIC LIGATURE HAMZA ON LAM ALEF FINAL FORM
|
|
0x78, // U+FEF9 ARABIC LIGATURE HAMZA UNDER LAM ALEF ISOLATED FORM
|
|
0xFB, // U+FEFA ARABIC LIGATURE HAMZA UNDER LAM ALEF FINAL FORM
|
|
0x79, // U+FEFB ARABIC LIGATURE LAM ALEF ISOLATED FORM
|
|
0xFD // U+FEFC ARABIC LIGATURE LAM ALEF FINAL FORM
|
|
};
|
|
|
|
NS_IMETHODIMP nsUnicodeToLangBoxArabic16::Convert(
|
|
const PRUnichar * aSrc, PRInt32 * aSrcLength,
|
|
char * aDest, PRInt32 * aDestLength)
|
|
{
|
|
char* dest = aDest;
|
|
PRInt32 inlen = 0;
|
|
|
|
while (inlen < *aSrcLength) {
|
|
PRUnichar aChar = aSrc[inlen];
|
|
|
|
if (((aChar >= 0x0020) && (aChar <= 0x0027)) ||
|
|
(aChar == 0x2A) ||
|
|
(aChar == 0x2B) ||
|
|
((aChar >= 0x002D) && (aChar <= 0x002F)) ||
|
|
(aChar == 0x003A) ||
|
|
((aChar >= 0x003C) && (aChar <= 0x003E)) ||
|
|
(aChar == 0x40) ||
|
|
(aChar == 0x5C) ||
|
|
(aChar == 0x5E) ||
|
|
(aChar == 0x5F) ||
|
|
(aChar == 0x7C) ||
|
|
(aChar == 0x7E)) {
|
|
*dest++ = (char) aChar;
|
|
// ISO-8859-6-16 swaps symmetric characters internally, but we have
|
|
// already swapped them where necessary during Bidi reordering, so we
|
|
// must swap them back here.
|
|
} else if (0x0028 == aChar) {
|
|
*dest++ = 0x29;
|
|
} else if (0x0029 == aChar) {
|
|
*dest++ = 0x28;
|
|
} else if (0x005B == aChar) {
|
|
*dest++ = 0x5D;
|
|
} else if (0x005D == aChar) {
|
|
*dest++ = 0x5B;
|
|
} else if (0x007B == aChar) {
|
|
*dest++ = 0x7D;
|
|
} else if (0x007D == aChar) {
|
|
*dest++ = 0x7B;
|
|
} else if (0x060C == aChar) {
|
|
// ARABIC COMMA
|
|
*dest++ = 0x2C;
|
|
} else if (0x061B == aChar) {
|
|
// ARABIC SEMICOLON
|
|
*dest++ = 0x3B;
|
|
} else if (0x061F == aChar) {
|
|
// ARABIC QUESTION MARK
|
|
*dest++ = 0x3F;
|
|
} else if (0x0640 == aChar) {
|
|
// ARABIC TATWEEL
|
|
*dest++ = 0x60;
|
|
} else if ((aChar >= 0x0660) && (aChar <=0x0669)) {
|
|
// ARABIC-INDIC DIGITS
|
|
*dest++ = (char)(aChar - 0x0660 + 0x30);
|
|
} else if ((aChar>=0xFE70) && (aChar <= 0xFEFC)) {
|
|
// ARABIC PRESENTATION FORMS
|
|
*dest++ = uni2lbox[aChar-0xFE70];
|
|
} else {
|
|
// do nothing
|
|
}
|
|
inlen++;
|
|
}
|
|
|
|
*aDestLength = dest - aDest;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP nsUnicodeToLangBoxArabic16::GetMaxLength(
|
|
const PRUnichar * aSrc, PRInt32 aSrcLength,
|
|
PRInt32 * aDestLength)
|
|
{
|
|
*aDestLength = aSrcLength;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP nsUnicodeToLangBoxArabic16::Finish(
|
|
char * aDest, PRInt32 * aDestLength)
|
|
{
|
|
*aDestLength=0;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP nsUnicodeToLangBoxArabic16::Reset()
|
|
{
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP nsUnicodeToLangBoxArabic16::SetOutputErrorBehavior(
|
|
PRInt32 aBehavior,
|
|
nsIUnicharEncoder * aEncoder, PRUnichar aChar)
|
|
{
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
|
|
NS_IMETHODIMP nsUnicodeToLangBoxArabic16::FillInfo(PRUint32* aInfo)
|
|
{
|
|
PRUnichar i;
|
|
|
|
/* Start off by marking the whole ASCII range as unrepresentable. If we
|
|
* don't do this we will try to use an ISO-8859-6.16 font for ASCII text
|
|
* embedded in Arabic content, and it will not be rendered correctly.
|
|
* See discussion in bug 172491
|
|
*/
|
|
for(i=0x0000; i <= 0x007F; i++)
|
|
CLEAR_REPRESENTABLE(aInfo, i);
|
|
|
|
// Mark the few exceptions as representable.
|
|
for(i=0x0020; i <= 0x002B; i++)
|
|
SET_REPRESENTABLE(aInfo, i);
|
|
for(i=0x002D; i <= 0x002F; i++)
|
|
SET_REPRESENTABLE(aInfo, i);
|
|
SET_REPRESENTABLE(aInfo, 0x003A);
|
|
for(i=0x003C; i <= 0x003E; i++)
|
|
SET_REPRESENTABLE(aInfo, i);
|
|
SET_REPRESENTABLE(aInfo, 0x0040);
|
|
for(i=0x005B; i <= 0x005F; i++)
|
|
SET_REPRESENTABLE(aInfo, i);
|
|
for(i=0x007B; i <= 0x007E;i++)
|
|
SET_REPRESENTABLE(aInfo, i);
|
|
|
|
// Arabic punctuation and numerals
|
|
SET_REPRESENTABLE(aInfo, 0x060c);
|
|
SET_REPRESENTABLE(aInfo, 0x061b);
|
|
SET_REPRESENTABLE(aInfo, 0x061f);
|
|
SET_REPRESENTABLE(aInfo, 0x0640);
|
|
for(i=0x0660; i<=0x0669; i++)
|
|
SET_REPRESENTABLE(aInfo, i);
|
|
|
|
// Arabic Pres Form-B
|
|
for(i=0xFE70; i <= 0xFE72; i++)
|
|
SET_REPRESENTABLE(aInfo, i);
|
|
SET_REPRESENTABLE(aInfo, 0xFE74);
|
|
for(i=0xFE76; i <= 0xFEFC; i++)
|
|
SET_REPRESENTABLE(aInfo, i);
|
|
|
|
return NS_OK;
|
|
}
|