// -*- c-basic-offset: 2 -*-

/*

 *  This file is part of the KDE libraries

 *  Copyright (C) 2006 George Staikos <staikos@kde.org>

 *  Copyright (C) 2006 Alexey Proskuryakov <ap@nypop.com>

 *

 *  This library is free software; you can redistribute it and/or

 *  modify it under the terms of the GNU Library General Public

 *  License as published by the Free Software Foundation; either

 *  version 2 of the License, or (at your option) any later version.

 *

 *  This library is distributed in the hope that it will be useful,

 *  but WITHOUT ANY WARRANTY; without even the implied warranty of

 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

 *  Library General Public License for more details.

 *

 *  You should have received a copy of the GNU Library General Public License

 *  along with this library; see the file COPYING.LIB.  If not, write to

 *  the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,

 *  Boston, MA 02110-1301, USA.

 *

 */

#ifndef KJS_UNICODE_SYMBIAN_H

#define KJS_UNICODE_SYMBIAN_H

#include <config.h>

#include <stdint.h>

#include <e32cmn.h>

#include <ctype.h>

#include <unicode/uchar.h>

//typedef uint16_t UChar;

//typedef uint32_t UChar32;

// some defines from ICU needed one or two places

#define U16_IS_LEAD(c) (((c)&0xfffffc00)==0xd800)

#define U16_IS_TRAIL(c) (((c)&0xfffffc00)==0xdc00)

#define U16_SURROGATE_OFFSET ((0xd800<<10UL)+0xdc00-0x10000)

#define U16_GET_SUPPLEMENTARY(lead, trail) \

    (((UChar32)(lead)<<10UL)+(UChar32)(trail)-U16_SURROGATE_OFFSET)

#define U16_LEAD(supplementary) (UChar)(((supplementary)>>10)+0xd7c0)

#define U16_TRAIL(supplementary) (UChar)(((supplementary)&0x3ff)|0xdc00)

#define U_IS_SURROGATE(c) (((c)&0xfffff800)==0xd800)

#define U16_IS_SURROGATE(c) U_IS_SURROGATE(c)

#define U16_IS_SURROGATE_LEAD(c) (((c)&0x400)==0)

#define U16_NEXT(s, i, length, c) { \

    (c)=(s)[(i)++]; \

    if(U16_IS_LEAD(c)) { \

        uint16_t __c2; \

        if((i)<(length) && U16_IS_TRAIL(__c2=(s)[(i)])) { \

            ++(i); \

            (c)=U16_GET_SUPPLEMENTARY((c), __c2); \

        } \

    } \

}

#define U_MASK(x) ((uint32_t)1<<(x))

#include "symbian/UnicodeCategory.h"

namespace WTF {

  namespace Unicode {

    enum Direction {

      LeftToRight = TChar::ELeftToRight,

      RightToLeft = TChar::ERightToLeft,

      EuropeanNumber = TChar::EEuropeanNumber,

      EuropeanNumberSeparator = TChar::EEuropeanNumberSeparator,

      EuropeanNumberTerminator = TChar::EEuropeanNumberTerminator,

      ArabicNumber = TChar::EArabicNumber,

      CommonNumberSeparator = TChar::ECommonNumberSeparator,

      BlockSeparator = TChar::EParagraphSeparator,

      SegmentSeparator = TChar::ESegmentSeparator,

      WhiteSpaceNeutral = TChar::EWhitespace,

      OtherNeutral = TChar::EOtherNeutral,

      LeftToRightEmbedding = TChar::ELeftToRightEmbedding,

      LeftToRightOverride = TChar::ELeftToRightOverride,

      RightToLeftArabic = TChar::ERightToLeftArabic,

      RightToLeftEmbedding = TChar::ERightToLeftEmbedding,

      RightToLeftOverride = TChar::ERightToLeftOverride,

      PopDirectionalFormat = TChar::EPopDirectionalFormat,

      NonSpacingMark = TChar::ENonSpacingMark,

      BoundaryNeutral = TChar::EBoundaryNeutral

    };

    inline UChar32 toLower(UChar32 ch)

    {

      return TChar(ch).GetLowerCase();

    }

    inline int toLower(UChar* str, int strLength, UChar*& destIfNeeded)

    {

      destIfNeeded = 0;

      for (int i = 0; i < strLength; ++i)

        str[i] = (uint16_t)toLower(str[i]);

      return strLength;

    }

    inline int toLower(UChar* result, int resultLength, const UChar* src, int srcLength,  bool* error)

    {

      // FIXME: handle special casing. Easiest with some low level API in Qt

      *error = false;

      if (resultLength < srcLength) {

        *error = true;

        return srcLength;

      }

      for (int i = 0; i < srcLength; ++i)

        result[i] = toLower(src[i]);

      return srcLength;

    }

    inline UChar32 toUpper(UChar32 ch)

    {

      return TChar(ch).GetUpperCase();

    }

    inline int toUpper(uint16_t* str, int strLength, uint16_t*& destIfNeeded)

    {

      destIfNeeded = 0;

      for (int i = 0; i < strLength; ++i)

        str[i] = (uint16_t)toUpper(str[i]);

      return strLength;

    }

    inline int toUpper(UChar* result, int resultLength, const UChar* src, int srcLength,  bool* error)

    {

      // FIXME: handle special casing. Easiest with some low level API in Qt

      *error = false;

      if (resultLength < srcLength) {

        *error = true;

        return srcLength;

      }

      for (int i = 0; i < srcLength; ++i)

        result[i] = toUpper(src[i]);

      return srcLength;

    }

    inline bool isFormatChar(int32_t c)

    {

      return (c & 0xffff0000) == 0 && TChar((unsigned short)c).GetCategory() == TChar::ECfCategory;

    }

    inline bool isSeparatorSpace(int32_t c)

    {

      return (c & 0xffff0000) == 0 && TChar((unsigned short)c).GetCategory() == TChar::EZsCategory;

    }

    inline bool isPrintableChar(int32_t c)

    {

      return (c & 0xffff0000) == 0 && TChar((unsigned short)c).IsPrint();

    }

    inline UChar32 foldCase(UChar32 c)

    {

      // do not modify the original char

      UChar32 c_ = c;

      TChar _c(c);

      _c.Fold(TChar::EFoldCase);

      c_ = _c;

      return c_;

    }

    inline int foldCase(UChar* result, int resultLength, UChar* src, int srcLength,  bool* error)

    {

      // FIXME: handle special casing. Easiest with some low level API in Qt

      *error = false;

      if (resultLength < srcLength) {

        *error = true;

        return srcLength;

      }

      for (int i = 0; i < srcLength; ++i)

        result[i] = foldCase(src[i]);

      return srcLength;

    }

    inline int toTitleCase(UChar32 c)

    {

      return TChar(c).GetTitleCase();

    }

    inline uint8_t combiningClass(UChar32 c)

    {

      return TChar(c).GetCombiningClass();

    }

    inline UChar32 mirroredChar(UChar32 c)

    {

      // needs fixing

      return c;

    }

    inline bool isDigit(UChar32 c)

    {

      return (c & 0xffff0000) == 0 && TChar(c).IsDigit();

    }

    inline bool isLower(UChar32 c)

    {

      return (c & 0xffff0000) == 0 && TChar(c).IsLower();

    }

    inline bool isUpper(UChar32 c)

    {

      return (c & 0xffff0000) == 0 && TChar(c).IsUpper();

    }

    inline Direction direction(UChar32 c)

    {

      return (Direction)TChar(c).GetBdCategory();

    }

    inline int umemcasecmp(const UChar* a, const UChar* b, int len)

    {

      // handle surrogates correctly

      for (int i = 0; i < len; ++i) {

        TChar c1 = TChar(a[i]);

        TChar c2 = TChar(b[i]);

        c1.Fold();

        c2.Fold();

        if (c1 != c2)

          return c1 - c2;

      }

      return 0;

    }

    inline CharCategory category(int32_t c)

    {

      // FIXME: implement support for non-BMP code points

      if ((c & 0xffff0000) != 0)

        return NoCategory;

      switch (TChar((unsigned short)c).GetCategory()) {

        case TChar::EMnCategory:

          return Mark_NonSpacing;

        case TChar::EMcCategory:

          return Mark_SpacingCombining;

        case TChar::EMeCategory:

          return Mark_Enclosing;

        case TChar::ENdCategory:

          return Number_DecimalDigit;

        case TChar::ENlCategory:

          return Number_Letter;

        case TChar::ENoCategory:

          return Number_Other;

        case TChar::EZsCategory:

          return Separator_Space;

        case TChar::EZlCategory:

          return Separator_Line;

        case TChar::EZpCategory:

          return Separator_Paragraph;

        case TChar::ECcCategory:

          return Other_Control;

        case TChar::ECfCategory:

          return Other_Format;

        case TChar::ECsCategory:

          return Other_Surrogate;

        case TChar::ECoCategory:

          return Other_PrivateUse;

        case TChar::ECnCategory:

          return Other_NotAssigned;

        case TChar::ELuCategory:

          return Letter_Uppercase;

        case TChar::ELlCategory:

          return Letter_Lowercase;

        case TChar::ELtCategory:

          return Letter_Titlecase;

        case TChar::ELmCategory:

          return Letter_Modifier;

        case TChar::ELoCategory:

          return Letter_Other;

        case TChar::EPcCategory:

          return Punctuation_Connector;

        case TChar::EPdCategory:

          return Punctuation_Dash;

        case TChar::EPsCategory:

          return Punctuation_Open;

        case TChar::EPeCategory:

          return Punctuation_Close;

        case TChar::EPiCategory:

          return Punctuation_InitialQuote;

        case TChar::EPfCategory:

          return Punctuation_FinalQuote;

        case TChar::EPoCategory:

          return Punctuation_Other;

        case TChar::ESmCategory:

          return Symbol_Math;

        case TChar::EScCategory:

          return Symbol_Currency;

        case TChar::ESkCategory:

          return Symbol_Modifier;

        case TChar::ESoCategory:

          return Symbol_Other;

        default:

          return NoCategory;

      }

    }

    enum DecompositionType {

      DecompositionNone = 0,

      DecompositionCanonical,

      DecompositionCompat,

      DecompositionCircle,

      DecompositionFinal,

      DecompositionFont,

      DecompositionFraction,

      DecompositionInitial,

      DecompositionIsolated,

      DecompositionMedial,

      DecompositionNarrow,

      DecompositionNoBreak,

      DecompositionSmall,

      DecompositionSquare,

      DecompositionSub,

      DecompositionSuper,

      DecompositionVertical,

      DecompositionWide

    };

    inline DecompositionType decompositionType(UChar32 c)

    {

        // FIXME: no corresponding function in TChar

        return DecompositionNone;

    }

    inline int digitValue(UChar32 c)

    {

        return isDigit(c) ? (c - UChar32('0')) : -1;

    }

    inline bool isPunct(UChar32 c)

    {

        return TChar(c).IsPunctuation();

    }

  }

}

#endif