deleted file mode 100644
--- a/intl/uconv/ucvko/nsUnicodeToJamoTTF.cpp
+++ /dev/null
@@ -1,896 +0,0 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim:expandtab:shiftwidth=2:tabstop=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 Corp.
- * Portions created by the Initial Developer are Copyright (C) 2003
- * the Initial Developer. All Rights Reserved.
- *
- * Contributor(s):
- * Jungshik Shin <jshin@mailaps.org>
- * Frank Tang <ftang@netscape.com>
- * Jin-Hwan Cho <chofchof@ktug.or.kr>
- * Won-Kyu Park <wkpark@chem.skku.ac.kr>
- *
- * Alternatively, the contents of this file may be used under the terms of
- * either 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 ***** */
-
-/*
- * - Purposes:
- * 1. Enable rendering over 1.5 million Hangul syllables with
- * UnBatang and other fonts made available by UN KoaungHi
- * and PARK Won-kyu.
- */
-#include "nsUCvKODll.h"
-#include "nsUnicodeToJamoTTF.h"
-#include "prmem.h"
-#include "nsXPIDLString.h"
-#include "prtypes.h"
-#include "nscore.h"
-#include "nsISupportsUtils.h"
-#include "nsCOMPtr.h"
-#include "nsIUnicodeDecoder.h"
-#include "nsServiceManagerUtils.h"
-#include "nsICharsetConverterManager.h"
-#include <string.h>
-
-typedef struct {
- PRUint8 seq[3];
- PRUint8 liga;
-} JamoNormMap;
-
-// cluster maps
-#include "jamoclusters.h"
-
-// Constants for Hangul Jamo/syllable handling taken from Unicode 3.0
-// section 3.11
-
-#define LBASE 0x1100
-#define VBASE 0x1161
-#define TBASE 0x11A7
-#define TSTART 0x11A8
-#define SBASE 0xAC00
-
-#define LCOUNT 19
-#define VCOUNT 21
-#define TCOUNT 28
-#define SCOUNT (LCOUNT * VCOUNT * TCOUNT)
-#define SEND (SBASE + SCOUNT - 1)
-
-
-#define LFILL 0x115F
-#define VFILL 0x1160
-
-#define IS_LC(wc) (LBASE <= (wc) && (wc) < VFILL)
-#define IS_VO(wc) (VFILL <= (wc) && (wc) < TSTART)
-#define IS_TC(wc) (TSTART <= (wc) && (wc) <= 0x11FF)
-#define IS_JAMO(wc) (IS_LC(wc) || IS_VO(wc) || IS_TC(wc))
-
-// Jamos used in modern precomposed syllables
-#define IS_SYL_LC(wc) (LBASE <= (wc) && (wc) < LBASE + LCOUNT)
-#define IS_SYL_VO(wc) (VBASE <= (wc) && (wc) < VBASE + VCOUNT)
-#define IS_SYL_TC(wc) (TBASE < (wc) && (wc) <= TBASE + TCOUNT)
-
-// Modern precomposed syllables.
-#define IS_SYL(wc) (SBASE <= (wc) && (wc) <= SEND)
-#define IS_SYL_WO_TC(wc) (((wc) - SBASE) % TCOUNT == 0)
-#define IS_SYL_WITH_TC(wc) (((wc) - SBASE) % TCOUNT)
-
-// Compose precomposed syllables out of L, V, and T.
-#define SYL_FROM_LVT(l,v,t) (SBASE + \
- (((l) - LBASE) * VCOUNT + (v) - VBASE) * TCOUNT + \
- (t) - TBASE)
-
-// Hangul tone marks
-#define HTONE1 0x302E
-#define HTONE2 0x302F
-
-#define IS_TONE(wc) ((wc) == HTONE1 || (wc) == HTONE2)
-
-// Below are constants for rendering with UnBatang-like fonts.
-
-#define LC_TMPPOS 0xF000 // temp. block for leading consonants
-#define VO_TMPPOS 0xF100 // temp. block for vowels
-#define TC_TMPPOS 0xF200 // temp. block for trailinng consonants
-#define LC_OFFSET (LC_TMPPOS-LBASE)
-#define VO_OFFSET (VO_TMPPOS-VFILL)
-#define TC_OFFSET (TC_TMPPOS-TSTART)
-
-// Jamo class of *temporary* code points in PUA for UnBatang-like fonts.
-#define IS_LC_EXT(wc) ( ((wc) & 0xFF00) == LC_TMPPOS )
-#define IS_VO_EXT(wc) ( ((wc) & 0xFF00) == VO_TMPPOS )
-#define IS_TC_EXT(wc) ( ((wc) & 0xFF00) == TC_TMPPOS )
-
-// Glyph code point bases for L,V, and T in UnBatang-like fonts
-#define UP_LBASE 0xE000 // 0xE000 = Lfill, 0xE006 = Kiyeok
-#define UP_VBASE 0xE300 // 0xE300 = Vfill, 0xE302 = Ah
-#define UP_TBASE 0xE404 // 0xE400 = Tfill, 0xE404 = Kiyeok
-
-static nsresult JamoNormalize (const PRUnichar* aInSeq,
- PRUnichar** aOutSeq, PRInt32* aLength);
-static void JamosToExtJamos (PRUnichar* aInSeq, PRInt32* aLength);
-static const JamoNormMap* JamoClusterSearch(JamoNormMap aKey,
- const JamoNormMap* aClusters,
- PRInt16 aClustersSize);
-
-static PRInt32 JamoNormMapComp (const JamoNormMap& p1,
- const JamoNormMap& p2);
-static PRInt16 JamoSrchReplace (const JamoNormMap* aCluster,
- PRUint16 aSize, PRUnichar *aIn,
- PRInt32* aLength, PRUint16 aOffset);
-static nsresult ScanDecomposeSyllable (PRUnichar *aIn, PRInt32* aLength,
- const PRInt32 aMaxLen);
-
-//----------------------------------------------------------------------
-// Class nsUnicodeToJamoTTF [implementation]
-
-NS_IMPL_ISUPPORTS1(nsUnicodeToJamoTTF, nsIUnicodeEncoder)
-
-NS_IMETHODIMP
-nsUnicodeToJamoTTF::SetOutputErrorBehavior(PRInt32 aBehavior,
- nsIUnicharEncoder *aEncoder,
- PRUnichar aChar)
-{
- if (aBehavior == kOnError_CallBack && aEncoder == nsnull)
- return NS_ERROR_NULL_POINTER;
- mErrEncoder = aEncoder;
- mErrBehavior = aBehavior;
- mErrChar = aChar;
- return NS_OK;
-}
-
-// constructor and destructor
-
-nsUnicodeToJamoTTF::nsUnicodeToJamoTTF()
-{
- mJamos = nsnull;
- Reset();
-}
-
-nsUnicodeToJamoTTF::~nsUnicodeToJamoTTF()
-{
- if (mJamos != nsnull && mJamos != mJamosStatic)
- PR_Free(mJamos);
-}
-
-enum KoCharClass {
- KO_CHAR_CLASS_LC,
- KO_CHAR_CLASS_VO,
- KO_CHAR_CLASS_TC,
- KO_CHAR_CLASS_SYL1, // modern precomposed syllable w/o TC (LV type syl.)
- KO_CHAR_CLASS_SYL2, // modern precomposed syllable with TC (LVT type syl.)
- KO_CHAR_CLASS_TONE, // Tone marks
- KO_CHAR_CLASS_NOHANGUL, // Non-Hangul characters.
- KO_CHAR_CLASS_NUM
-} ;
-
-#define CHAR_CLASS(ch) \
- (IS_LC(ch) ? KO_CHAR_CLASS_LC : \
- IS_VO(ch) ? KO_CHAR_CLASS_VO : \
- IS_TC(ch) ? KO_CHAR_CLASS_TC : \
- IS_SYL(ch) ? \
- (IS_SYL_WITH_TC(ch) ? KO_CHAR_CLASS_SYL2 : KO_CHAR_CLASS_SYL1) : \
- IS_TONE(ch) ? KO_CHAR_CLASS_TONE : \
- KO_CHAR_CLASS_NOHANGUL)
-
-
-// Grapheme boundary checker : See UTR #29 and Unicode 3.2 section 3.11
-const static PRBool gIsBoundary[KO_CHAR_CLASS_NUM][KO_CHAR_CLASS_NUM] =
-{// L V T S1 S2 M X
- { 0, 0, 1, 0, 0, 0, 1 }, // L
- { 1, 0, 0, 1, 1, 0, 1 }, // V
- { 1, 1, 0, 1, 1, 0, 1 }, // T
- { 1, 0, 0, 1, 1, 0, 1 }, // S1
- { 1, 1, 0, 1, 1, 0, 1 }, // S2
- { 1, 1, 1, 1, 1, 0, 1 }, // M
- { 1, 1, 1, 1, 1, 0, 1 } // X
-};
-
-
-NS_IMETHODIMP
-nsUnicodeToJamoTTF::Convert(const PRUnichar * aSrc,
- PRInt32 * aSrcLength, char * aDest,
- PRInt32 * aDestLength)
-{
- nsresult rv = NS_OK;
- mByteOff = 0;
-
- // This should never happen, but it happens under MS Windows, somehow...
- if (mJamoCount > mJamosMaxLength)
- {
- NS_WARNING("mJamoCount > mJamoMaxLength on entering Convert()");
- Reset();
- }
-
- for (PRInt32 charOff = 0; charOff < *aSrcLength; charOff++)
- {
- PRUnichar ch = aSrc[charOff];
-
- // Syllable boundary check. Ref. : Unicode 3.2 section 3.11
- if (mJamoCount != 0 &&
- gIsBoundary[CHAR_CLASS(mJamos[mJamoCount - 1])][CHAR_CLASS(ch)])
- {
- composeHangul(aDest);
- mJamoCount = 0;
- }
- // Ignore tone marks other than the first in a sequence of tone marks.
- else if (mJamoCount != 0 && IS_TONE(mJamos[mJamoCount - 1]) && IS_TONE(ch))
- {
- --mJamoCount;
- composeHangul(aDest);
- mJamoCount = 0;
-
- // skip over tone marks from the second on in a series.
- while (IS_TONE(ch) && ++charOff < *aSrcLength)
- ch = aSrc[charOff];
-
- if (!IS_TONE(ch))
- {
- mJamos[mJamoCount++] = ch;
- continue;
- }
- else
- break;
- }
-
- if (mJamoCount == mJamosMaxLength)
- {
- mJamosMaxLength++;
- if (mJamos == mJamosStatic)
- {
- mJamos = (PRUnichar *) PR_Malloc(sizeof(PRUnichar) * mJamosMaxLength);
- if (!mJamos)
- return NS_ERROR_OUT_OF_MEMORY;
- memcpy(mJamos, mJamosStatic, sizeof(PRUnichar) * mJamoCount);
- }
- else
- {
- mJamos = (PRUnichar *) PR_Realloc(mJamos,
- sizeof(PRUnichar) * mJamosMaxLength);
- if (!mJamos)
- return NS_ERROR_OUT_OF_MEMORY;
- }
- }
-
- mJamos[mJamoCount++] = ch;
- }
-
- if (mJamoCount != 0)
- composeHangul(aDest);
- mJamoCount = 0;
- *aDestLength = mByteOff;
-
- return rv;
-}
-
-NS_IMETHODIMP
-nsUnicodeToJamoTTF::Finish(char* aDest, PRInt32* aDestLength)
-{
- mByteOff = 0;
- if (mJamoCount != 0)
- composeHangul(aDest);
-
- *aDestLength = mByteOff;
-
- mByteOff = 0;
- mJamoCount = 0;
- return NS_OK;
-}
-
-//================================================================
-NS_IMETHODIMP
-nsUnicodeToJamoTTF::Reset()
-{
-
- if (mJamos != nsnull && mJamos != mJamosStatic)
- PR_Free(mJamos);
- mJamos = mJamosStatic;
- mJamosMaxLength = sizeof(mJamosStatic) / sizeof(PRUnichar);
- memset(mJamos, 0, sizeof(mJamosStatic));
- mJamoCount = 0;
- mByteOff = 0;
-
- return NS_OK;
-}
-
-NS_IMETHODIMP
-nsUnicodeToJamoTTF::GetMaxLength(const PRUnichar * aSrc, PRInt32 aSrcLength,
- PRInt32 * aDestLength)
-{
- // a precomposed Hangul syllable can be decomposed into 3 Jamos, each of
- // which takes 2bytes.
- *aDestLength = aSrcLength * 6;
- return NS_OK;
-}
-
-/**
- * Copied from mslvt.otp by Jin-Hwan Cho <chofchof@ktug.or.kr>.
- * Extended by Jungshik Shin <jshin@mailaps.org> to support
- * additional Jamo clusters not encoded in U+1100 Jamo block
- * as precomposed Jamo clsuters.
- * Corrected by Won-Kyu Park <wkpark@chem.skku.ac.kr>.
- * See http://www.ktug.or.kr for its use in Lambda and swindow/SFontTTF.cpp at
- * http://www.yudit.org for its use in Yudit.
- * A patch with the same set of tables was submitted for
- * inclusion in Pango (http://www.pango.org).
- */
-
-/**
- * Mapping from LC code points to glyph indices in UnPark fonts.
- * UnPark fonts have the same glyph arrangement as Ogulim font, but
- * they have them in BMP PUA (beginning at U+E000) to be proper Unicode
- * fonts unlike Ogulim font with Jamo glyphs in CJK ideograph code points.
- * Glyph indices for 90 LCs encoded in U+1100 block are followed by 6 reserved
- * code points and glyph indices for 34 additional consonant clusters
- * (not assigned code points of their own) for which separate glyphs exist in
- * UnPark fonts.
- * The first element is for Kiyeok and UP_LBASE is set to Lfill glyph(0xe000)
- * so that the first element is '1' to map it to glyph for Kiyeok at 0xe006.
- * (there are six glyphs for each LC in UnPark fonts.)
- */
-const static PRUint8 gUnParkLcGlyphMap[130] = {
- 1, 2, 4, 12, 14, 20, 36, 42, 46, 62, 70, 85,100,102,108,113,
-114,116,120, 5, 6, 7, 8, 13, 23, 26, 34, 35, 39, 41, 43, 44,
- 45, 47, 48, 49, 50, 51, 52, 54, 55, 57, 58, 60, 61, 63, 64, 65,
- 66, 67, 68, 69, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83,
- 84, 86, 87, 89, 90, 91, 92, 93, 94, 95, 96, 97, 99,101,104,105,
-106,107,109,110,111,112,117,119,122,123, 0, 0, 0, 0, 0, 0,
- 3, 9, 10, 11, 15, 16, 17, 18, 19, 21, 22, 24, 25, 27, 28, 29,
- 30, 31, 32, 33, 37, 38, 40, 53, 56, 59, 71, 88, 98,103,115,118,
-121, 124
-};
-
-/**
- * Mapping from vowel code points to glyph indices in UnPark/Oxxx font.
- * Glyphs for 28 additional vowel clusters (not given separate
- * code points in U+1100 block) are available in O*ttf fonts.
- * Total count: 95 = 1(Vfill) + 66 (in U+1100 block) + 28 (extra.)
- */
-const static PRUint8 gUnParkVoGlyphMap[95] = {
- 0, 1, 5, 6, 10, 11, 15, 16, 20, 21, 22, 23, 33, 34, 43, 46,
- 48, 52, 54, 64, 71, 73, 2, 3, 7, 8, 12, 13, 14, 18, 19, 26,
- 27, 29, 30, 32, 37, 38, 40, 41, 42, 44, 45, 47, 50, 51, 55, 57,
- 58, 59, 60, 62, 63, 69, 70, 72, 74, 75, 80, 83, 85, 87, 88, 90,
- 92, 93, 94, 4, 9, 17, 24, 25, 28, 31, 35, 36, 39, 49, 53, 56,
- 61, 65, 66, 67, 68, 76, 77, 78, 79, 81, 82, 84, 86, 89, 91
-};
-
-/**
- * Mapping from TC code points to glyph indices in UnPark/Oxxx font.
- * glyphs for 59 additional trailing consonant clusters (not given separate
- * code points in U+1100 blocks) are available in O*ttf fonts.
- * Total count: 141 = 82 (in U+1100 block) + 59 (extra.)
- * The first element is Kiyeok and UP_TBASE is set to 0x5204 (Kiyeok).
- */
-const static PRUint8 gUnParkTcGlyphMap[141] = {
- 0, 1, 5, 10, 17, 20, 21, 32, 33, 42, 46, 52, 57, 58, 59, 63,
- 78, 84, 91, 98,109,123,127,128,129,130,135, 3, 6, 11, 13, 15,
- 16, 19, 22, 25, 35, 37, 38, 39, 40, 43, 44, 48, 50, 51, 53, 54,
- 56, 60, 64, 67, 69, 71, 72, 73, 75, 76, 77, 80, 88, 89, 90, 92,
- 93, 94, 96,106,110,111,114,115,117,119,120,131,134,136,137,138,
- 139,140, 2, 4, 7, 8, 9, 12, 14, 18, 23, 24, 26, 27, 28, 29,
- 30, 31, 34, 36, 41, 45, 47, 49, 55, 61, 62, 65, 66, 68, 70, 74,
- 79, 81, 82, 83, 85, 86, 87, 95, 97, 99,100,101,102,103,104,105,
- 107,108,112,113,116,118,121,122,124,125,126,132,133
-};
-
-/* Which of six glyphs to use for choseong(L) depends on
- the following vowel and whether or not jongseong(T) is present
- in a syllable. Note that The first(0th) element is for Vfill.
-
- shape Number of choseong(L) w.r.t. jungseong(V) without jongseong(T)
-
- 95 = 1(Vfill) + 66 + 28 (extra)
-*/
-
-const static PRUint8 gUnParkVo2LcMap[95] = {
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 1, 1, 1, 2, 2, 1,
- 1, 1, 2, 2, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
- 1, 1, 2, 2, 1, 1, 1, 2, 1, 1, 1, 1, 1, 2, 1, 1,
- 1, 1, 1, 2, 1, 2, 2, 1, 0, 0, 1, 1, 1, 0, 2, 1,
- 2, 1, 2, 1, 1, 0, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1,
- 2, 1, 1, 1, 2, 1, 0, 0, 0, 1, 1, 1, 0, 2, 2
-};
-
-/* shape Number of choseong(L) w.r.t. jungseong(V) with jongseong(T) */
-
-const static PRUint8 gUnParkVo2LcMap2[95] = {
- 3, 3, 3, 3, 3, 3, 3, 3, 3, 5, 4, 4, 4, 5, 5, 4,
- 4, 4, 5, 5, 4, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
- 4, 4, 5, 5, 4, 4, 4, 5, 4, 4, 4, 4, 4, 5, 4, 4,
- 4, 4, 4, 5, 4, 5, 5, 4, 3, 3, 4, 4, 4, 3, 5, 4,
- 5, 4, 5, 4, 4, 3, 4, 4, 4, 5, 4, 4, 4, 4, 4, 4,
- 5, 4, 4, 4, 5, 4, 3, 3, 3, 4, 4, 4, 3, 5, 5
-};
-
-/* shape Number of jongseong(T) w.r.t. jungseong(V)
- Which of four glyphs to use for jongseong(T) depends on
- the preceding vowel. */
-
-const static PRUint8 gUnParkVo2TcMap[95] = {
- 3, 0, 2, 0, 2, 1, 2, 1, 2, 3, 0, 2, 1, 3, 3, 1,
- 2, 1, 3, 3, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1,
- 2, 2, 3, 3, 0, 2, 1, 3, 1, 0, 2, 1, 2, 3, 0, 1,
- 2, 1, 2, 3, 1, 3, 3, 1, 2, 2, 1, 1, 1, 1, 3, 1,
- 3, 1, 3, 0, 1, 0, 0, 0, 2, 3, 0, 2, 1, 1, 2, 2,
- 3, 0, 0, 0, 3, 0, 2, 2, 2, 1, 0, 1, 2, 1, 1
-};
-
-NS_IMETHODIMP
-nsUnicodeToJamoTTF::composeHangul(char* aResult)
-{
- PRInt32 length = mJamoCount, i;
- nsresult rv = NS_OK;
-
- if (!length)
- {
- NS_WARNING("composeHangul() : zero length string comes in ! \n");
- return NS_ERROR_UNEXPECTED;
- }
-
- if (!aResult)
- return NS_ERROR_NULL_POINTER;
-
- // Put Hangul tone mark first as it should be to the left of
- // the character it follows.
- // XXX : What should we do when a tone mark come by itself?
-
- if (IS_TONE(mJamos[length - 1]))
- {
- aResult[mByteOff++] = PRUint8(mJamos[length - 1] >> 8);
- aResult[mByteOff++] = PRUint8(mJamos[length - 1] & 0xff);
- if (--length == 0)
- return rv;
- }
-
- // no more processing is necessary for precomposed modern Hangul syllables.
- if (length == 1 && IS_SYL(mJamos[0]))
- {
- aResult[mByteOff++] = PRUint8(mJamos[0] >> 8);
- aResult[mByteOff++] = PRUint8(mJamos[0] & 0xff);
- return rv;
- }
-
- if (CHAR_CLASS(mJamos[0]) == KO_CHAR_CLASS_NOHANGUL)
- {
- NS_ASSERTION(length == 1, "A non-Hangul should come by itself !!\n");
- aResult[mByteOff++] = PRUint8(mJamos[0] >> 8);
- aResult[mByteOff++] = PRUint8(mJamos[0] & 0xff);
- return rv;
- }
-
- nsXPIDLString buffer;
-
- rv = JamoNormalize(mJamos, getter_Copies(buffer), &length);
-
- // safe to cast away const.
- PRUnichar* text = buffer.BeginWriting();
- NS_ENSURE_SUCCESS(rv, rv);
-
- text += RenderAsPrecompSyllable(text, &length, aResult);
-
- if (!length)
- return rv;
-
- // convert to extended Jamo sequence
- JamosToExtJamos(text, &length);
-
-
- // Check if not in LV or LVT form after the conversion
- if (length != 2 && length != 3 ||
- (!IS_LC_EXT(text[0]) || !IS_VO_EXT(text[1]) ||
- (length == 3 && !IS_TC_EXT(text[2]))))
- goto fallback;
-
-// Now that text[0..2] are identified as L,V, and T, it's safe to
-// shift them back to U+1100 block although their ranges overlap each other.
-
- text[0] -= LC_OFFSET;
- text[1] -= VO_OFFSET;
- if (length == 3)
- text[2] -= TC_OFFSET;
-
- if (length != 3)
- {
- text[0] = gUnParkLcGlyphMap[text[0] - LBASE] * 6 +
- gUnParkVo2LcMap[text[1] - VFILL] + UP_LBASE;
- text[1] = gUnParkVoGlyphMap[text[1] - VFILL] * 2 + UP_VBASE;
- }
- else
- {
- text[0] = gUnParkLcGlyphMap[text[0] - LBASE] * 6 +
- gUnParkVo2LcMap2[text[1] - VFILL] + UP_LBASE;
- text[2] = gUnParkTcGlyphMap[text[2] - TSTART] * 4 +
- gUnParkVo2TcMap[text[1] - VFILL] + UP_TBASE;
- text[1] = gUnParkVoGlyphMap[text[1] - VFILL] * 2 + UP_VBASE + 1;
- }
-
- // Xft doesn't like blank glyphs at code points other than listed in
- // the blank glyph list. Replace Lfill glyph code points of UnPark
- // fonts with standard LFILL code point (U+115F).
-
- if (UP_LBASE <= text[0] && text[0] < UP_LBASE + 6)
- text[0] = LFILL;
-
- // The same is true of glyph code points corresponding to VFILL
- // in UnBatang-like fonts. VFILL is not only blank but also non-advancing
- // so that we can just skip it.
- if (UP_VBASE <= text[1] && text[1] < UP_VBASE + 2)
- {
- --length;
- if (length == 2)
- text[1] = text[2];
- }
-
- for (i = 0 ; i < length; i++)
- {
- aResult[mByteOff++] = PRUint8(text[i] >> 8);
- aResult[mByteOff++] = PRUint8(text[i] & 0xff);
- }
-
- return rv;
-
-
- /* If jamo sequence is not convertible to a jamo cluster,
- * just enumerate stand-alone jamos. Prepend V and T with Lf.
- *
- * XXX: It might be better to search for a sub-sequence (not just at the
- * beginning of a cluster but also in the middle or at the end.)
- * that can be rendered as precomposed and render it as such and enumerate
- * jamos in the rest. This approach is useful when a simple Xkb-based input
- * is used.
- */
-
-fallback:
- for (i = 0; i < length; i++)
- {
- PRUnichar wc=0, wc2=0;
- /* skip Lfill and Vfill if they're not the sole char. in a cluster */
- if (length > 1 &&
- (text[i] - LC_OFFSET == LFILL || text[i] - VO_OFFSET == VFILL))
- continue;
- else if (IS_LC_EXT (text[i]))
- wc = gUnParkLcGlyphMap[text[i] - LC_OFFSET - LBASE] * 6 + UP_LBASE;
- else
- {
- /* insert Lfill glyph to advance cursor pos. for V and T */
- wc = LBASE;
- /* don't have to draw Vfill. Drawing Lfill is sufficient. */
- if (text[i] - VO_OFFSET != VFILL)
- wc2 = IS_VO_EXT (text[i]) ?
- gUnParkVoGlyphMap[text[i] - VO_OFFSET - VFILL] * 2 + UP_VBASE:
- gUnParkTcGlyphMap[text[i] - TC_OFFSET - TSTART] * 4 + UP_TBASE + 3;
- }
- aResult[mByteOff++] = PRUint8(wc >> 8);
- aResult[mByteOff++] = PRUint8(wc & 0xff);
-
- if (wc2)
- {
- aResult[mByteOff++] = wc2 >> 8;
- aResult[mByteOff++] = wc2 & 0xff;
- }
- }
-
- return rv;
-}
-
-int
-nsUnicodeToJamoTTF::RenderAsPrecompSyllable (PRUnichar* aSrc,
- PRInt32* aSrcLength, char* aResult)
-{
-
- int composed = 0;
-
- if (*aSrcLength == 3 && IS_SYL_LC(aSrc[0]) && IS_SYL_VO(aSrc[1]) &&
- IS_SYL_TC(aSrc[2]))
- composed = 3;
- else if (*aSrcLength == 2 && IS_SYL_LC(aSrc[0]) && IS_SYL_VO(aSrc[1]))
- composed = 2;
- else
- composed = 0;
-
- if (composed)
- {
- PRUnichar wc;
- if (composed == 3)
- wc = SYL_FROM_LVT(aSrc[0], aSrc[1], aSrc[2]);
- else
- wc = SYL_FROM_LVT(aSrc[0], aSrc[1], TBASE);
- aResult[mByteOff++] = PRUint8(wc >> 8);
- aResult[mByteOff++] = PRUint8(wc & 0xff);
- }
-
- *aSrcLength -= composed;
-
- return composed;
-}
-
-/* static */
-PRInt32 JamoNormMapComp (const JamoNormMap& p1, const JamoNormMap& p2)
-{
- if (p1.seq[0] != p2.seq[0])
- return p1.seq[0] - p2.seq[0];
- if (p1.seq[1] != p2.seq[1])
- return p1.seq[1] - p2.seq[1];
- return p1.seq[2] - p2.seq[2];
-}
-
-/* static */
-const JamoNormMap* JamoClusterSearch (JamoNormMap aKey,
- const JamoNormMap* aClusters,
- PRInt16 aClustersSize)
-{
-
- if (aClustersSize <= 0 || !aClusters)
- {
- NS_WARNING("aClustersSize <= 0 || !aClusters");
- return nsnull;
- }
-
- if (aClustersSize < 9)
- {
- PRInt16 i;
- for (i = 0; i < aClustersSize; i++)
- if (JamoNormMapComp (aKey, aClusters[i]) == 0)
- return aClusters + i;
- return nsnull;
- }
-
- PRUint16 l = 0, u = aClustersSize - 1;
- PRUint16 h = (l + u) / 2;
-
- if (JamoNormMapComp (aKey, aClusters[h]) < 0)
- return JamoClusterSearch(aKey, &(aClusters[l]), h - l);
- else if (JamoNormMapComp (aKey, aClusters[h]) > 0)
- return JamoClusterSearch(aKey, &(aClusters[h + 1]), u - h);
- else
- return aClusters + h;
-
-}
-
-
-/*
- * look up cluster array for all possible matching Jamo sequences
- * in 'aIn' and replace all matching substrings with match->liga in place.
- * returns the difference in aLength between before and after the replacement.
- * XXX : 1. Do we need caching here?
- **/
-
-/* static */
-PRInt16 JamoSrchReplace (const JamoNormMap* aClusters,
- PRUint16 aClustersSize, PRUnichar* aIn,
- PRInt32* aLength, PRUint16 aOffset)
-{
- PRInt32 origLen = *aLength;
-
- // non-zero third element => clusternLen = 3. otherwise, it's 2.
- PRUint16 clusterLen = aClusters[0].seq[2] ? 3 : 2;
-
- PRInt32 start = 0, end;
-
- // identify the substring of aIn with values in [aOffset, aOffset + 0x100).
- while (start < origLen && (aIn[start] & 0xff00) != aOffset)
- ++start;
- for (end=start; end < origLen && (aIn[end] & 0xff00) == aOffset; ++end);
-
- // now process the substring aIn[start] .. aIn[end]
- // we don't need a separate range check here because the one in
- // for-loop is sufficient.
- for (PRInt32 i = start; i <= end - clusterLen; i++)
- {
- const JamoNormMap *match;
- JamoNormMap key;
-
- // cluster array is made up of PRUint8's to save memory
- // and we have to subtract aOffset from the input before looking it up.
- key.seq[0] = aIn[i] - aOffset;
- key.seq[1] = aIn[i + 1] - aOffset;
- key.seq[2] = clusterLen == 3 ? (aIn[i + 2] - aOffset) : 0;
-
- match = JamoClusterSearch (key, aClusters, aClustersSize);
-
- if (match)
- {
- aIn[i] = match->liga + aOffset; // add back aOffset.
-
- // move up the 'tail'
- for (PRInt32 j = i + clusterLen ; j < *aLength; j++)
- aIn[j - clusterLen + 1] = aIn[j];
-
- end -= (clusterLen - 1);
- *aLength -= (clusterLen - 1);
- }
- }
-
- return *aLength - origLen;
-}
-
-/* static */
-nsresult ScanDecomposeSyllable(PRUnichar* aIn, PRInt32 *aLength,
- const PRInt32 maxLength)
-{
- nsresult rv = NS_OK;
-
- if (!aIn || *aLength < 1 || maxLength < *aLength + 2)
- return NS_ERROR_INVALID_ARG;
-
- PRInt32 i = 0;
- while (i < *aLength && !IS_SYL(aIn[i]))
- i++;
-
- // Convert a precomposed syllable to an LV or LVT sequence.
- if (i < *aLength && IS_SYL(aIn[i]))
- {
- PRUint16 j = IS_SYL_WITH_TC(aIn[i]) ? 1 : 0;
- aIn[i] -= SBASE;
- memmove(aIn + i + 2 + j, aIn + i + 1, *aLength - i - 1);
- if (j)
- aIn[i + 2] = aIn[i] % TCOUNT + TBASE;
- aIn[i + 1] = (aIn[i] / TCOUNT) % VCOUNT + VBASE;
- aIn[i] = aIn[i] / (TCOUNT * VCOUNT) + LBASE;
- *aLength += 1 + j;
- }
-
- return rv;
-}
-
-/*
- * 1. Normalize (regularize) a jamo sequence to the regular
- * syllable form defined in Unicode 3.2 section 3.11 to the extent
- * that it's useful in rendering by render_func's().
- *
- * 2. Replace a compatibly decomposed Jamo sequence (unicode 2.0
- * definition) with a 'precomposed' Jamo cluster (with codepoint
- * of its own in U+1100 block). For instance, a seq.
- * of U+1100, U+1100 is replaced by U+1101. It actually
- * more than Unicode 2.0 decomposition map suggests.
- * For a Jamo cluster made up of three basic Jamos
- * (e.g. U+1133 : Sios, Piup, Kiyeok), not only
- * a sequence of Sios(U+1109), Piup(U+1107) and
- * Kiyeok(U+1100) but also two more sequences,
- * {U+1132(Sios-Pieup), U+1100(Kiyeok) and {Sios(U+1109),
- * U+111E(Piup-Kiyeok)} are mapped to U+1133.
- *
- * 3. the result is returned in a newly malloced
- * PRUnichar*. Callers have to delete it, which
- * is taken care of by using nsXPIDLString in caller.
- */
-
-/* static */
-nsresult JamoNormalize(const PRUnichar* aInSeq, PRUnichar** aOutSeq,
- PRInt32* aLength)
-{
- if (!aInSeq || !aOutSeq || *aLength <= 0)
- return NS_ERROR_INVALID_ARG;
-
- // 4 more slots : 2 for Lf and Vf, 2 for decomposing a modern precomposed
- // syllable into a Jamo sequence of LVT?.
- *aOutSeq = new PRUnichar[*aLength + 4];
- if (!*aOutSeq)
- return NS_ERROR_OUT_OF_MEMORY;
- memcpy(*aOutSeq, aInSeq, *aLength * sizeof(PRUnichar));
-
- nsresult rv = ScanDecomposeSyllable(*aOutSeq, aLength, *aLength + 4);
- NS_ENSURE_SUCCESS(rv, rv);
-
- // LV or LVT : no need to search for and replace jamo sequences
- if ((*aLength == 2 && IS_LC((*aOutSeq)[0]) && IS_VO((*aOutSeq)[1])) ||
- (*aLength == 3 && IS_LC((*aOutSeq)[0]) && IS_VO((*aOutSeq)[1]) &&
- IS_TC((*aOutSeq)[2])))
- return NS_OK;
-
- // remove Lf in LfL sequence that may occur in an interim cluster during
- // a simple Xkb-based input.
- if ((*aOutSeq)[0] == LFILL && *aLength > 1 && IS_LC((*aOutSeq)[1]))
- {
- memmove (*aOutSeq, *aOutSeq + 1, (*aLength - 1) * sizeof(PRUnichar));
- (*aLength)--;
- }
-
- if (*aLength > 1)
- {
- JamoSrchReplace (gJamoClustersGroup1,
- sizeof(gJamoClustersGroup1) / sizeof(gJamoClustersGroup1[0]),
- *aOutSeq, aLength, LBASE);
- JamoSrchReplace (gJamoClustersGroup234,
- sizeof(gJamoClustersGroup234) / sizeof(gJamoClustersGroup234[0]),
- *aOutSeq, aLength, LBASE);
- }
-
- // prepend a leading V with Lf
- if (IS_VO((*aOutSeq)[0]))
- {
- memmove(*aOutSeq + 1, *aOutSeq, *aLength * sizeof(PRUnichar));
- (*aOutSeq)[0] = LFILL;
- (*aLength)++;
- }
- /* prepend a leading T with LfVf */
- else if (IS_TC((*aOutSeq)[0]))
- {
- memmove (*aOutSeq + 2, *aOutSeq, *aLength * sizeof(PRUnichar));
- (*aOutSeq)[0] = LFILL;
- (*aOutSeq)[1] = VFILL;
- *aLength += 2;
- }
- return NS_OK;
-}
-
-
-/* JamosToExtJamos() :
- * 1. shift jamo sequences to three disjoint code blocks in
- * PUA (0xF000 for LC, 0xF1000 for VO, 0xF200 for TC).
- * 2. replace a jamo sequence with a precomposed extended
- * cluster jamo code point in PUA
- * 3. this replacement is done 'in place'
- */
-
-/* static */
-void JamosToExtJamos (PRUnichar* aInSeq, PRInt32* aLength)
-{
- // translate jamo code points to temporary code points in PUA
- for (PRInt32 i = 0; i < *aLength; i++)
- {
- if (IS_LC(aInSeq[i]))
- aInSeq[i] += LC_OFFSET;
- else if (IS_VO(aInSeq[i]))
- aInSeq[i] += VO_OFFSET;
- else if (IS_TC(aInSeq[i]))
- aInSeq[i] += TC_OFFSET;
- }
-
- // LV or LVT : no need to search for and replace jamo sequences
- if ((*aLength == 2 && IS_LC_EXT(aInSeq[0]) && IS_VO_EXT(aInSeq[1])) ||
- (*aLength == 3 && IS_LC_EXT(aInSeq[0]) && IS_VO_EXT(aInSeq[1]) &&
- IS_TC_EXT(aInSeq[2])))
- return;
-
- // replace a sequence of Jamos with the corresponding precomposed
- // Jamo cluster in PUA
-
- JamoSrchReplace (gExtLcClustersGroup1,
- sizeof (gExtLcClustersGroup1) / sizeof (gExtLcClustersGroup1[0]),
- aInSeq, aLength, LC_TMPPOS);
- JamoSrchReplace (gExtLcClustersGroup2,
- sizeof (gExtLcClustersGroup2) / sizeof (gExtLcClustersGroup2[0]),
- aInSeq, aLength, LC_TMPPOS);
- JamoSrchReplace (gExtVoClustersGroup1,
- sizeof (gExtVoClustersGroup1) / sizeof (gExtVoClustersGroup1[0]),
- aInSeq, aLength, VO_TMPPOS);
- JamoSrchReplace (gExtVoClustersGroup2,
- sizeof (gExtVoClustersGroup2) / sizeof (gExtVoClustersGroup2[0]),
- aInSeq, aLength, VO_TMPPOS);
- JamoSrchReplace (gExtTcClustersGroup1,
- sizeof (gExtTcClustersGroup1) / sizeof (gExtTcClustersGroup1[0]),
- aInSeq, aLength, TC_TMPPOS);
- JamoSrchReplace (gExtTcClustersGroup2,
- sizeof (gExtTcClustersGroup2) / sizeof (gExtTcClustersGroup2[0]),
- aInSeq, aLength, TC_TMPPOS);
- return;
-}
-