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Diffstat (limited to 'WebCore/platform/text/mac/ShapeArabic.c')
| -rw-r--r-- | WebCore/platform/text/mac/ShapeArabic.c | 555 |
1 files changed, 0 insertions, 555 deletions
diff --git a/WebCore/platform/text/mac/ShapeArabic.c b/WebCore/platform/text/mac/ShapeArabic.c deleted file mode 100644 index 6dbc008..0000000 --- a/WebCore/platform/text/mac/ShapeArabic.c +++ /dev/null @@ -1,555 +0,0 @@ -/* -****************************************************************************** -* -* Copyright (C) 2000-2004, International Business Machines -* Corporation and others. All Rights Reserved. -* Copyright (C) 2007 Apple Inc. All rights reserved. -* -* Permission is hereby granted, free of charge, to any person obtaining a copy of this -* software and associated documentation files (the "Software"), to deal in the Software -* without restriction, including without limitation the rights to use, copy, modify, -* merge, publish, distribute, and/or sell copies of the Software, and to permit persons -* to whom the Software is furnished to do so, provided that the above copyright notice(s) -* and this permission notice appear in all copies of the Software and that both the above -* copyright notice(s) and this permission notice appear in supporting documentation. -* -* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, -* INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR -* PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER -* OR HOLDERS INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT OR -* CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR -* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING -* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. -* -* Except as contained in this notice, the name of a copyright holder shall not be used in -* advertising or otherwise to promote the sale, use or other dealings in this Software -* without prior written authorization of the copyright holder. -* -****************************************************************************** -* -* Arabic letter shaping implemented by Ayman Roshdy -*/ - -#include "config.h" - -#if USE(ATSUI) - -#include "ShapeArabic.h" - -#include <unicode/utypes.h> -#include <unicode/uchar.h> -#include <unicode/ustring.h> -#include <unicode/ushape.h> -#include <wtf/Assertions.h> - -/* - * ### TODO in general for letter shaping: - * - the letter shaping code is UTF-16-unaware; needs update - * + especially invertBuffer()?! - * - needs to handle the "Arabic Tail" that is used in some legacy codepages - * as a glyph fragment of wide-glyph letters - * + IBM Unicode conversion tables map it to U+200B (ZWSP) - * + IBM Egypt has proposed to encode the tail in Unicode among Arabic Presentation Forms - */ - -/* definitions for Arabic letter shaping ------------------------------------ */ - -#define IRRELEVANT 4 -#define LAMTYPE 16 -#define ALEFTYPE 32 -#define LINKR 1 -#define LINKL 2 - -static const UChar IrrelevantPos[] = { - 0x0, 0x2, 0x4, 0x6, - 0x8, 0xA, 0xC, 0xE, -}; - -static const UChar araLink[178]= -{ - 1 + 32 + 256 * 0x11,/*0x0622*/ - 1 + 32 + 256 * 0x13,/*0x0623*/ - 1 + 256 * 0x15,/*0x0624*/ - 1 + 32 + 256 * 0x17,/*0x0625*/ - 1 + 2 + 256 * 0x19,/*0x0626*/ - 1 + 32 + 256 * 0x1D,/*0x0627*/ - 1 + 2 + 256 * 0x1F,/*0x0628*/ - 1 + 256 * 0x23,/*0x0629*/ - 1 + 2 + 256 * 0x25,/*0x062A*/ - 1 + 2 + 256 * 0x29,/*0x062B*/ - 1 + 2 + 256 * 0x2D,/*0x062C*/ - 1 + 2 + 256 * 0x31,/*0x062D*/ - 1 + 2 + 256 * 0x35,/*0x062E*/ - 1 + 256 * 0x39,/*0x062F*/ - 1 + 256 * 0x3B,/*0x0630*/ - 1 + 256 * 0x3D,/*0x0631*/ - 1 + 256 * 0x3F,/*0x0632*/ - 1 + 2 + 256 * 0x41,/*0x0633*/ - 1 + 2 + 256 * 0x45,/*0x0634*/ - 1 + 2 + 256 * 0x49,/*0x0635*/ - 1 + 2 + 256 * 0x4D,/*0x0636*/ - 1 + 2 + 256 * 0x51,/*0x0637*/ - 1 + 2 + 256 * 0x55,/*0x0638*/ - 1 + 2 + 256 * 0x59,/*0x0639*/ - 1 + 2 + 256 * 0x5D,/*0x063A*/ - 0, 0, 0, 0, 0, /*0x063B-0x063F*/ - 1 + 2, /*0x0640*/ - 1 + 2 + 256 * 0x61,/*0x0641*/ - 1 + 2 + 256 * 0x65,/*0x0642*/ - 1 + 2 + 256 * 0x69,/*0x0643*/ - 1 + 2 + 16 + 256 * 0x6D,/*0x0644*/ - 1 + 2 + 256 * 0x71,/*0x0645*/ - 1 + 2 + 256 * 0x75,/*0x0646*/ - 1 + 2 + 256 * 0x79,/*0x0647*/ - 1 + 256 * 0x7D,/*0x0648*/ - 1 + 256 * 0x7F,/*0x0649*/ - 1 + 2 + 256 * 0x81,/*0x064A*/ - 4, 4, 4, 4, /*0x064B-0x064E*/ - 4, 4, 4, 4, /*0x064F-0x0652*/ - 4, 4, 4, 0, 0, /*0x0653-0x0657*/ - 0, 0, 0, 0, /*0x0658-0x065B*/ - 1 + 256 * 0x85,/*0x065C*/ - 1 + 256 * 0x87,/*0x065D*/ - 1 + 256 * 0x89,/*0x065E*/ - 1 + 256 * 0x8B,/*0x065F*/ - 0, 0, 0, 0, 0, /*0x0660-0x0664*/ - 0, 0, 0, 0, 0, /*0x0665-0x0669*/ - 0, 0, 0, 0, 0, 0, /*0x066A-0x066F*/ - 4, /*0x0670*/ - 0, /*0x0671*/ - 1 + 32, /*0x0672*/ - 1 + 32, /*0x0673*/ - 0, /*0x0674*/ - 1 + 32, /*0x0675*/ - 1, 1, /*0x0676-0x0677*/ - 1+2, /*0x0678*/ - 1+2 + 256 * 0x16,/*0x0679*/ - 1+2 + 256 * 0x0E,/*0x067A*/ - 1+2 + 256 * 0x02,/*0x067B*/ - 1+2, 1+2, /*0x067C-0x067D*/ - 1+2 + 256 * 0x06,/*0x067E*/ - 1+2 + 256 * 0x12,/*0x067F*/ - 1+2 + 256 * 0x0A,/*0x0680*/ - 1+2, 1+2, /*0x0681-0x0682*/ - 1+2 + 256 * 0x26,/*0x0683*/ - 1+2 + 256 * 0x22,/*0x0684*/ - 1+2, /*0x0685*/ - 1+2 + 256 * 0x2A,/*0x0686*/ - 1+2 + 256 * 0x2E,/*0x0687*/ - 1 + 256 * 0x38,/*0x0688*/ - 1, 1, 1, /*0x0689-0x068B*/ - 1 + 256 * 0x34,/*0x068C*/ - 1 + 256 * 0x32,/*0x068D*/ - 1 + 256 * 0x36,/*0x068E*/ - 1, 1, /*0x068F-0x0690*/ - 1 + 256 * 0x3C,/*0x0691*/ - 1, 1, 1, 1, 1, 1, /*0x0692-0x0697*/ - 1 + 256 * 0x3A,/*0x0698*/ - 1, /*0x0699*/ - 1+2, 1+2, 1+2, 1+2, 1+2, 1+2, /*0x069A-0x069F*/ - 1+2, 1+2, 1+2, 1+2, /*0x06A0-0x06A3*/ - 1+2 + 256 * 0x2E,/*0x06A4*/ - 1+2, /*0x06A5*/ - 1+2 + 256 * 0x1E,/*0x06A6*/ - 1+2, 1+2, /*0x06A7-0x06A8*/ - 1+2 + 256 * 0x3E,/*0x06A9*/ - 1+2, 1+2, 1+2, /*0x06AA-0x06AC*/ - 1+2 + 256 * 0x83,/*0x06AD*/ - 1+2, /*0x06AE*/ - 1+2 + 256 * 0x42,/*0x06AF*/ - 1+2, /*0x06B0*/ - 1+2 + 256 * 0x4A,/*0x06B1*/ - 1+2, /*0x06B2*/ - 1+2 + 256 * 0x46,/*0x06B3*/ - 1+2, 1+2, 1+2, 1+2, 1+2, 1+2, /*0x06B4-0x06B9*/ - 1+2, /*0x06BA*/ // FIXME: Seems to have a final form - 1+2 + 256 * 0x50,/*0x06BB*/ - 1+2, 1+2, /*0x06BC-0x06BD*/ - 1+2 + 256 * 0x5A,/*0x06BE*/ - 1+2, /*0x06BF*/ - 1, /*0x06C0*/ - 1+2 + 256 * 0x56,/*0x06C1*/ - 1+2, /*0x06C2*/ - 1, 1, /*0x06C3-0x06C4*/ - 1 + 256 * 0x90,/*0x06C5*/ - 1 + 256 * 0x89,/*0x06C6*/ - 1 + 256 * 0x87,/*0x06C7*/ - 1 + 256 * 0x8B,/*0x06C8*/ - 1 + 256 * 0x92,/*0x06C9*/ - 1, /*0x06CA*/ - 1 + 256 * 0x8E,/*0x06CB*/ - 1+2 + 256 * 0xAC,/*0x06CC*/ - 1, /*0x06CD*/ - 1+2, /*0x06CE*/ - 1, /*0x06CF*/ - 1+2 + 256 * 0x94,/*0x06D0*/ - 1+2, /*0x06D1*/ - 1 + 256 * 0x5E,/*0x06D2*/ - 1 + 256 * 0x60 /*0x06D3*/ -}; - -static const UChar presLink[141]= -{ - 1 + 2, /*0xFE70*/ - 1 + 2, /*0xFE71*/ - 1 + 2, 0, 1+ 2, 0, 1+ 2, /*0xFE72-0xFE76*/ - 1 + 2, /*0xFE77*/ - 1+ 2, 1 + 2, 1+2, 1 + 2, /*0xFE78-0xFE81*/ - 1+ 2, 1 + 2, 1+2, 1 + 2, /*0xFE82-0xFE85*/ - 0, 0 + 32, 1 + 32, 0 + 32, /*0xFE86-0xFE89*/ - 1 + 32, 0, 1, 0 + 32, /*0xFE8A-0xFE8D*/ - 1 + 32, 0, 2, 1 + 2, /*0xFE8E-0xFE91*/ - 1, 0 + 32, 1 + 32, 0, /*0xFE92-0xFE95*/ - 2, 1 + 2, 1, 0, /*0xFE96-0xFE99*/ - 1, 0, 2, 1 + 2, /*0xFE9A-0xFE9D*/ - 1, 0, 2, 1 + 2, /*0xFE9E-0xFEA1*/ - 1, 0, 2, 1 + 2, /*0xFEA2-0xFEA5*/ - 1, 0, 2, 1 + 2, /*0xFEA6-0xFEA9*/ - 1, 0, 2, 1 + 2, /*0xFEAA-0xFEAD*/ - 1, 0, 1, 0, /*0xFEAE-0xFEB1*/ - 1, 0, 1, 0, /*0xFEB2-0xFEB5*/ - 1, 0, 2, 1+2, /*0xFEB6-0xFEB9*/ - 1, 0, 2, 1+2, /*0xFEBA-0xFEBD*/ - 1, 0, 2, 1+2, /*0xFEBE-0xFEC1*/ - 1, 0, 2, 1+2, /*0xFEC2-0xFEC5*/ - 1, 0, 2, 1+2, /*0xFEC6-0xFEC9*/ - 1, 0, 2, 1+2, /*0xFECA-0xFECD*/ - 1, 0, 2, 1+2, /*0xFECE-0xFED1*/ - 1, 0, 2, 1+2, /*0xFED2-0xFED5*/ - 1, 0, 2, 1+2, /*0xFED6-0xFED9*/ - 1, 0, 2, 1+2, /*0xFEDA-0xFEDD*/ - 1, 0, 2, 1+2, /*0xFEDE-0xFEE1*/ - 1, 0 + 16, 2 + 16, 1 + 2 +16, /*0xFEE2-0xFEE5*/ - 1 + 16, 0, 2, 1+2, /*0xFEE6-0xFEE9*/ - 1, 0, 2, 1+2, /*0xFEEA-0xFEED*/ - 1, 0, 2, 1+2, /*0xFEEE-0xFEF1*/ - 1, 0, 1, 0, /*0xFEF2-0xFEF5*/ - 1, 0, 2, 1+2, /*0xFEF6-0xFEF9*/ - 1, 0, 1, 0, /*0xFEFA-0xFEFD*/ - 1, 0, 1, 0, - 1 -}; - -static const UChar convertFEto06[] = -{ -/***********0******1******2******3******4******5******6******7******8******9******A******B******C******D******E******F***/ -/*FE7*/ 0x64B, 0x64B, 0x64C, 0x64C, 0x64D, 0x64D, 0x64E, 0x64E, 0x64F, 0x64F, 0x650, 0x650, 0x651, 0x651, 0x652, 0x652, -/*FE8*/ 0x621, 0x622, 0x622, 0x623, 0x623, 0x624, 0x624, 0x625, 0x625, 0x626, 0x626, 0x626, 0x626, 0x627, 0x627, 0x628, -/*FE9*/ 0x628, 0x628, 0x628, 0x629, 0x629, 0x62A, 0x62A, 0x62A, 0x62A, 0x62B, 0x62B, 0x62B, 0x62B, 0x62C, 0x62C, 0x62C, -/*FEA*/ 0x62C, 0x62D, 0x62D, 0x62D, 0x62D, 0x62E, 0x62E, 0x62E, 0x62E, 0x62F, 0x62F, 0x630, 0x630, 0x631, 0x631, 0x632, -/*FEB*/ 0x632, 0x633, 0x633, 0x633, 0x633, 0x634, 0x634, 0x634, 0x634, 0x635, 0x635, 0x635, 0x635, 0x636, 0x636, 0x636, -/*FEC*/ 0x636, 0x637, 0x637, 0x637, 0x637, 0x638, 0x638, 0x638, 0x638, 0x639, 0x639, 0x639, 0x639, 0x63A, 0x63A, 0x63A, -/*FED*/ 0x63A, 0x641, 0x641, 0x641, 0x641, 0x642, 0x642, 0x642, 0x642, 0x643, 0x643, 0x643, 0x643, 0x644, 0x644, 0x644, -/*FEE*/ 0x644, 0x645, 0x645, 0x645, 0x645, 0x646, 0x646, 0x646, 0x646, 0x647, 0x647, 0x647, 0x647, 0x648, 0x648, 0x649, -/*FEF*/ 0x649, 0x64A, 0x64A, 0x64A, 0x64A, 0x65C, 0x65C, 0x65D, 0x65D, 0x65E, 0x65E, 0x65F, 0x65F -}; - -static const UChar shapeTable[4][4][4]= -{ - { {0,0,0,0}, {0,0,0,0}, {0,1,0,3}, {0,1,0,1} }, - { {0,0,2,2}, {0,0,1,2}, {0,1,1,2}, {0,1,1,3} }, - { {0,0,0,0}, {0,0,0,0}, {0,1,0,3}, {0,1,0,3} }, - { {0,0,1,2}, {0,0,1,2}, {0,1,1,2}, {0,1,1,3} } -}; - -/* - *Name : changeLamAlef - *Function : Converts the Alef characters into an equivalent - * LamAlef location in the 0x06xx Range, this is an - * intermediate stage in the operation of the program - * later it'll be converted into the 0xFExx LamAlefs - * in the shaping function. - */ -static UChar -changeLamAlef(UChar ch) { - - switch(ch) { - case 0x0622 : - return(0x065C); - break; - case 0x0623 : - return(0x065D); - break; - case 0x0625 : - return(0x065E); - break; - case 0x0627 : - return(0x065F); - break; - default : - return(0); - break; - } -} - -/* - *Name : specialChar - *Function : Special Arabic characters need special handling in the shapeUnicode - * function, this function returns 1 or 2 for these special characters - */ -static int32_t -specialChar(UChar ch) { - - if( (ch>0x0621 && ch<0x0626)||(ch==0x0627)||(ch>0x062e && ch<0x0633)|| - (ch>0x0647 && ch<0x064a)||(ch==0x0629) ) { - return (1); - } - else - if( ch>=0x064B && ch<= 0x0652 ) - return (2); - else - if( (ch>=0x0653 && ch<= 0x0655) || ch == 0x0670 || - (ch>=0xFE70 && ch<= 0xFE7F) ) - return (3); - else - return (0); -} - -/* - *Name : getLink - *Function : Resolves the link between the characters as - * Arabic characters have four forms : - * Isolated, Initial, Middle and Final Form - */ -static UChar -getLink(UChar ch) { - - if(ch >= 0x0622 && ch <= 0x06D3) { - return(araLink[ch-0x0622]); - } else if(ch == 0x200D) { - return(3); - } else if(ch >= 0x206D && ch <= 0x206F) { - return(4); - } else if(ch >= 0xFE70 && ch <= 0xFEFC) { - return(presLink[ch-0xFE70]); - } else { - return(0); - } -} - -/* - *Name : isTashkeelChar - *Function : Returns 1 for Tashkeel characters else return 0 - */ -static int32_t -isTashkeelChar(UChar ch) { - - if( ch>=0x064B && ch<= 0x0652 ) - return (1); - else - return (0); -} - -/* - *Name : shapeUnicode - *Function : Converts an Arabic Unicode buffer in 06xx Range into a shaped - * arabic Unicode buffer in FExx Range - */ -static int32_t -shapeUnicode(UChar *dest, int32_t sourceLength, - int32_t destSize,uint32_t options, - UErrorCode *pErrorCode, - int tashkeelFlag) { - - int32_t i, iend; - int32_t prevPos, lastPos,Nx, Nw; - unsigned int Shape; - int32_t flag; - int32_t lamalef_found = 0; - UChar prevLink = 0, lastLink = 0, currLink, nextLink = 0; - UChar wLamalef; - - /* - * Converts the input buffer from FExx Range into 06xx Range - * to make sure that all characters are in the 06xx range - * even the lamalef is converted to the special region in - * the 06xx range - */ - for (i = 0; i < sourceLength; i++) { - UChar inputChar = dest[i]; - if ( (inputChar >= 0xFE70) && (inputChar <= 0xFEFC)) { - dest[i] = convertFEto06 [ (inputChar - 0xFE70) ] ; - } - } - - /* sets the index to the end of the buffer, together with the step point to -1 */ - i = 0; - iend = sourceLength; - - /* - * This function resolves the link between the characters . - * Arabic characters have four forms : - * Isolated Form, Initial Form, Middle Form and Final Form - */ - currLink = getLink(dest[i]); - - prevPos = i; - lastPos = i; - Nx = sourceLength + 2, Nw = 0; - - while (i != iend) { - /* If high byte of currLink > 0 then more than one shape */ - if ((currLink & 0xFF00) > 0 || isTashkeelChar(dest[i])) { - Nw = i + 1; - while (Nx >= sourceLength) { /* we need to know about next char */ - if(Nw == iend) { - nextLink = 0; - Nx = -1; - } else { - nextLink = getLink(dest[Nw]); - if((nextLink & IRRELEVANT) == 0) { - Nx = Nw; - } else { - Nw = Nw + 1; - } - } - } - - if ( ((currLink & ALEFTYPE) > 0) && ((lastLink & LAMTYPE) > 0) ) { - lamalef_found = 1; - wLamalef = changeLamAlef(dest[i]); /*get from 0x065C-0x065f */ - if ( wLamalef != 0) { - dest[i] = ' '; /* The default case is to drop the Alef and replace */ - dest[lastPos] =wLamalef; /* it by a space. */ - i=lastPos; - } - lastLink = prevLink; - currLink = getLink(wLamalef); - } - /* - * get the proper shape according to link ability of neighbors - * and of character; depends on the order of the shapes - * (isolated, initial, middle, final) in the compatibility area - */ - flag = specialChar(dest[i]); - - Shape = shapeTable[nextLink & (LINKR + LINKL)] - [lastLink & (LINKR + LINKL)] - [currLink & (LINKR + LINKL)]; - - if (flag == 1) { - Shape = (Shape == 1 || Shape == 3) ? 1 : 0; - } - else - if(flag == 2) { - if( (lastLink & LINKL) && (nextLink & LINKR) && (tashkeelFlag == 1) && - dest[i] != 0x064C && dest[i] != 0x064D ) { - Shape = 1; - if( (nextLink&ALEFTYPE) == ALEFTYPE && (lastLink&LAMTYPE) == LAMTYPE ) - Shape = 0; - } - else { - Shape = 0; - } - } - - if(flag == 2) { - dest[i] = 0xFE70 + IrrelevantPos[(dest[i] - 0x064B)] + Shape; - } - else - dest[i] = (UChar)((dest[i] < 0x0670 ? 0xFE70 : 0xFB50) + (currLink >> 8) + Shape); - } - - /* move one notch forward */ - if ((currLink & IRRELEVANT) == 0) { - prevLink = lastLink; - lastLink = currLink; - prevPos = lastPos; - lastPos = i; - } - - i++; - if (i == Nx) { - currLink = nextLink; - Nx = sourceLength + 2; - } - else if(i != iend) { - currLink = getLink(dest[i]); - } - } - - destSize = sourceLength; - - return destSize; -} - -int32_t shapeArabic(const UChar *source, int32_t sourceLength, UChar *dest, int32_t destCapacity, uint32_t options, UErrorCode *pErrorCode) { - int32_t destLength; - - /* usual error checking */ - if(pErrorCode==NULL || U_FAILURE(*pErrorCode)) { - return 0; - } - - /* make sure that no reserved options values are used; allow dest==NULL only for preflighting */ - if( source==NULL || sourceLength<-1 || - (dest==NULL && destCapacity!=0) || destCapacity<0 || - options>=U_SHAPE_DIGIT_TYPE_RESERVED || - (options&U_SHAPE_DIGITS_MASK)>=U_SHAPE_DIGITS_RESERVED - ) { - *pErrorCode=U_ILLEGAL_ARGUMENT_ERROR; - return 0; - } - - /* determine the source length */ - if(sourceLength==-1) { - sourceLength=u_strlen(source); - } - if(sourceLength==0) { - return 0; - } - - /* check that source and destination do not overlap */ - if( dest!=NULL && - ((source<=dest && dest<source+sourceLength) || - (dest<=source && source<dest+destCapacity)) - ) { - *pErrorCode=U_ILLEGAL_ARGUMENT_ERROR; - return 0; - } - - if((options&U_SHAPE_LETTERS_MASK)!=U_SHAPE_LETTERS_NOOP) { - int32_t outputSize = sourceLength; - - /* calculate destination size */ - /* TODO: do we ever need to do this pure preflighting? */ - ASSERT((options&U_SHAPE_LENGTH_MASK) != U_SHAPE_LENGTH_GROW_SHRINK); - - if(outputSize>destCapacity) { - *pErrorCode=U_BUFFER_OVERFLOW_ERROR; - return outputSize; - } - - /* Start of Arabic letter shaping part */ - memcpy(dest, source, sourceLength*U_SIZEOF_UCHAR); - - ASSERT((options&U_SHAPE_TEXT_DIRECTION_MASK) == U_SHAPE_TEXT_DIRECTION_LOGICAL); - - switch(options&U_SHAPE_LETTERS_MASK) { - case U_SHAPE_LETTERS_SHAPE : - /* Call the shaping function with tashkeel flag == 1 */ - destLength = shapeUnicode(dest,sourceLength,destCapacity,options,pErrorCode,1); - break; - case U_SHAPE_LETTERS_SHAPE_TASHKEEL_ISOLATED : - /* Call the shaping function with tashkeel flag == 0 */ - destLength = shapeUnicode(dest,sourceLength,destCapacity,options,pErrorCode,0); - break; - case U_SHAPE_LETTERS_UNSHAPE : - ASSERT_NOT_REACHED(); - break; - default : - /* will never occur because of validity checks above */ - destLength = 0; - break; - } - - /* End of Arabic letter shaping part */ - } else - ASSERT_NOT_REACHED(); - - ASSERT((options & U_SHAPE_DIGITS_MASK) == U_SHAPE_DIGITS_NOOP); - - return sourceLength; -} - -#endif // USE(ATSUI) |