/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ /* * 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.org code. * * The Initial Developer of the Original Code is * IBM Corporation. Portions created by IBM are * Copyright (C) 2000 IBM Corporation. All * Rights Reserved. * * Contributor(s): * Maha Abou El Rous * Lina Kemmel * Simon Montagu * */ #ifndef nsBidiUtils_h__ #define nsBidiUtils_h__ #include "nsCOMPtr.h" #include "nsString.h" /** * Perform Arabic shaping on a Unichar string * @param aString is the input string * @param aLen is the length of aStrong * @param aBuf receives the shaped output * @param aBuflen receives the length of aBuf */ nsresult ArabicShaping(const PRUnichar* aString, PRUint32 aLen, PRUnichar* aBuf, PRUint32* aBufLen); /** * Scan an nsString, converting characters in the FExx range (Arabic presentation forms) to the equivalent characters in the 06xx * range * @param aSrc is the input string * @param aDst is the output string */ nsresult Conv_FE_06(const nsString& aSrc, nsString& aDst); /** * Scan an nsString, converting characters in the FExx range (Arabic presentation forms) to the equivalent characters in the 06xx * range, and also reverse the string * @param aSrc is the input string * @param aDst is the output string */ nsresult Conv_FE_06_WithReverse(const nsString& aSrc, nsString& aDst); /** * Scan an nsString, converting characters in the 06xx range to the equivalent characters in the 0Fxx range (Arabic presentation * forms), with the option to reverse the string * @param aSrc is the input string * @param aDst is the output string * @param aDir indicates whether the string should be reversed * IBMBIDI_TEXTDIRECTION_LTR: do not reverse the string * IBMBIDI_TEXTDIRECTION_RTL: reverse the string */ nsresult Conv_06_FE_WithReverse(const nsString& aSrc, nsString& aDst, PRUint32 aDir); // -------------------------------------------------- // IBMBIDI // -------------------------------------------------- // // These values are shared with Preferences dialog // ------------------ // If Pref values are to be changed // in the XUL file of Prefs. the values // Must be changed here too.. // ------------------ // #define IBMBIDI_TEXTDIRECTION_STR "bidi.direction" #define IBMBIDI_TEXTTYPE_STR "bidi.texttype" #define IBMBIDI_CONTROLSTEXTMODE_STR "bidi.controlstextmode" #define IBMBIDI_CLIPBOARDTEXTMODE_STR "bidi.clipboardtextmode" #define IBMBIDI_NUMERAL_STR "bidi.numeral" #define IBMBIDI_SUPPORTMODE_STR "bidi.support" #define IBMBIDI_CHARSET_STR "bidi.characterset" #define IBMBIDI_TEXTDIRECTION 1 #define IBMBIDI_TEXTTYPE 2 #define IBMBIDI_CONTROLSTEXTMODE 3 #define IBMBIDI_CLIPBOARDTEXTMODE 4 #define IBMBIDI_NUMERAL 5 #define IBMBIDI_SUPPORTMODE 6 #define IBMBIDI_CHARSET 7 // ------------------ // Text Direction // ------------------ // bidi.direction #define IBMBIDI_TEXTDIRECTION_LTR 1 // 1 = directionLTRBidi * #define IBMBIDI_TEXTDIRECTION_RTL 2 // 2 = directionRTLBidi // ------------------ // Text Type // ------------------ // bidi.texttype #define IBMBIDI_TEXTTYPE_CHARSET 1 // 1 = charsettexttypeBidi * #define IBMBIDI_TEXTTYPE_LOGICAL 2 // 2 = logicaltexttypeBidi #define IBMBIDI_TEXTTYPE_VISUAL 3 // 3 = visualtexttypeBidi // ------------------ // Controls Text Mode // ------------------ // bidi.controlstextmode #define IBMBIDI_CONTROLSTEXTMODE_LOGICAL 1 // 1 = logicalcontrolstextmodeBidiCmd * #define IBMBIDI_CONTROLSTEXTMODE_VISUAL 2 // 2 = visualcontrolstextmodeBidi #define IBMBIDI_CONTROLSTEXTMODE_CONTAINER 3 // 3 = containercontrolstextmodeBidi // ------------------ // Clipboard Text Mode // ------------------ // bidi.clipboardtextmode #define IBMBIDI_CLIPBOARDTEXTMODE_LOGICAL 1 // 1 = logicalclipboardtextmodeBidi #define IBMBIDI_CLIPBOARDTEXTMODE_VISUAL 2 // 2 = visualclipboardtextmodeBidi #define IBMBIDI_CLIPBOARDTEXTMODE_SOURCE 3 // 3 = sourceclipboardtextmodeBidi * // ------------------ // Numeral Style // ------------------ // bidi.numeral #define IBMBIDI_NUMERAL_REGULAR 1 // 1 = regularcontextnumeralBidi * #define IBMBIDI_NUMERAL_HINDICONTEXT 2 // 2 = hindicontextnumeralBidi #define IBMBIDI_NUMERAL_ARABIC 3 // 3 = arabicnumeralBidi #define IBMBIDI_NUMERAL_HINDI 4 // 4 = hindinumeralBidi // ------------------ // Support Mode // ------------------ // bidi.support #define IBMBIDI_SUPPORTMODE_MOZILLA 1 // 1 = mozillaBidisupport * #define IBMBIDI_SUPPORTMODE_OSBIDI 2 // 2 = OsBidisupport #define IBMBIDI_SUPPORTMODE_DISABLE 3 // 3 = disableBidisupport // ------------------ // Charset Mode // ------------------ // bidi.characterset #define IBMBIDI_CHARSET_BIDI 1 // 1 = doccharactersetBidi * #define IBMBIDI_CHARSET_DEFAULT 2 // 2 = defaultcharactersetBidi #define IBMBIDI_DEFAULT_BIDI_OPTIONS \ ((IBMBIDI_TEXTDIRECTION_LTR<<0) | \ (IBMBIDI_TEXTTYPE_CHARSET<<4) | \ (IBMBIDI_CONTROLSTEXTMODE_LOGICAL<<8) | \ (IBMBIDI_CLIPBOARDTEXTMODE_SOURCE<<12) | \ (IBMBIDI_NUMERAL_REGULAR<<16) | \ (IBMBIDI_SUPPORTMODE_MOZILLA<<20) | \ (IBMBIDI_CHARSET_BIDI<<24)) #define GET_BIDI_OPTION_DIRECTION(bo) (((bo)>>0) & 0x0000000F) /* 4 bits for DIRECTION */ #define GET_BIDI_OPTION_TEXTTYPE(bo) (((bo)>>4) & 0x0000000F) /* 4 bits for TEXTTYPE */ #define GET_BIDI_OPTION_CONTROLSTEXTMODE(bo) (((bo)>>8) & 0x0000000F) /* 4 bits for CONTROLTEXTMODE */ #define GET_BIDI_OPTION_CLIPBOARDTEXTMODE(bo) (((bo)>>12) & 0x0000000F) /* 4 bits for CLIPBOARDTEXTMODE */ #define GET_BIDI_OPTION_NUMERAL(bo) (((bo)>>16) & 0x0000000F) /* 4 bits for NUMERAL */ #define GET_BIDI_OPTION_SUPPORT(bo) (((bo)>>20) & 0x0000000F) /* 4 bits for SUPPORT */ #define GET_BIDI_OPTION_CHARACTERSET(bo) (((bo)>>24) & 0x0000000F) /* 4 bits for CHARACTERSET */ #define SET_BIDI_OPTION_DIRECTION(bo, dir) {(bo)=((bo) & 0xFFFFFFF0)|(((dir)& 0x0000000F)<<0);} #define SET_BIDI_OPTION_TEXTTYPE(bo, tt) {(bo)=((bo) & 0xFFFFFF0F)|(((tt)& 0x0000000F)<<4);} #define SET_BIDI_OPTION_CONTROLSTEXTMODE(bo, cotm) {(bo)=((bo) & 0xFFFFF0FF)|(((cotm)& 0x0000000F)<<8);} #define SET_BIDI_OPTION_CLIPBOARDTEXTMODE(bo, cltm) {(bo)=((bo) & 0xFFFF0FFF)|(((cltm)& 0x0000000F)<<12);} #define SET_BIDI_OPTION_NUMERAL(bo, num) {(bo)=((bo) & 0xFFF0FFFF)|(((num)& 0x0000000F)<<16);} #define SET_BIDI_OPTION_SUPPORT(bo, sup) {(bo)=((bo) & 0xFF0FFFFF)|(((sup)& 0x0000000F)<<20);} #define SET_BIDI_OPTION_CHARACTERSET(bo, cs) {(bo)=((bo) & 0xF0FFFFFF)|(((cs)& 0x0000000F)<<24);} /* Constants related to the position of numerics in the codepage */ #define START_HINDI_DIGITS 0x0660 #define END_HINDI_DIGITS 0x0669 #define START_ARABIC_DIGITS 0x0030 #define END_ARABIC_DIGITS 0x0039 #define START_FARSI_DIGITS 0x06f0 #define END_FARSI_DIGITS 0x06f9 #define IS_HINDI_DIGIT(u) ( ( (u) >= START_HINDI_DIGITS ) && ( (u) <= END_HINDI_DIGITS ) ) #define IS_ARABIC_DIGIT(u) ( ( (u) >= START_ARABIC_DIGITS ) && ( (u) <= END_ARABIC_DIGITS ) ) #define IS_FARSI_DIGIT(u) ( ( (u) >= START_FARSI_DIGITS ) && ( (u) <= END_FARSI_DIGITS ) ) #define IS_ARABIC_SEPARATOR(u) ( ( (u) == 0x066A ) || ( (u) == 0x066B ) || ( (u) == 0x066C ) ) #define IS_BIDI_DIACRITIC(u) ( \ ( (u) >= 0x0591 && (u) <= 0x05A1) || ( (u) >= 0x05A3 && (u) <= 0x05B9) \ || ( (u) >= 0x05BB && (u) <= 0x05BD) || ( (u) == 0x05BF) || ( (u) == 0x05C1) \ || ( (u) == 0x05C2) || ( (u) == 0x05C4) \ || ( (u) >= 0x064B && (u) <= 0x0652) || ( (u) == 0x0670) \ || ( (u) >= 0x06D7 && (u) <= 0x06E4) || ( (u) == 0x06E7) || ( (u) == 0x06E8) \ || ( (u) >= 0x06EA && (u) <= 0x06ED) ) #define IS_HEBREW_CHAR(c) (((0x0590 <= (c)) && ((c)<= 0x05FF)) || (((c) >= 0xfb1d) && ((c) <= 0xfb4f))) #define IS_06_CHAR(c) ((0x0600 <= (c)) && ((c)<= 0x06FF)) #define IS_FE_CHAR(c) (((0xfb50 <= (c)) && ((c)<= 0xfbFF)) \ || ((0xfe70 <= (c)) && ((c)<= 0xfeFC))) #define IS_ARABIC_CHAR(c) ((0x0600 <= (c)) && ((c)<= 0x06FF)) #define IS_ARABIC_ALPHABETIC(c) (IS_ARABIC_CHAR(c) && \ !(IS_HINDI_DIGIT(c) || IS_FARSI_DIGIT(c) || IS_ARABIC_SEPARATOR(c))) #define CHAR_IS_BIDI(c) ( (IS_HINDI_DIGIT(c) ) || (IS_HEBREW_CHAR(c) ) \ || (IS_06_CHAR(c) ) || (IS_FE_CHAR(c) ) ) #endif /* nsBidiUtils_h__ */