// Copyright 2014 PDFium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com

#include <algorithm>

#include "core/fxcrt/fx_ext.h"
#include "core/fxcrt/fx_xml.h"
#include "xfa/fgas/localization/fgas_localeimp.h"

#define FX_LOCALECATEGORY_DateHash 0xbde9abde
#define FX_LOCALECATEGORY_TimeHash 0x2d71b00f
#define FX_LOCALECATEGORY_DateTimeHash 0x158c72ed
#define FX_LOCALECATEGORY_NumHash 0x0b4ff870
#define FX_LOCALECATEGORY_TextHash 0x2d08af85
#define FX_LOCALECATEGORY_ZeroHash 0x568cb500
#define FX_LOCALECATEGORY_NullHash 0x052931bb

struct FX_LOCALESUBCATEGORYINFO {
  uint32_t uHash;
  const FX_WCHAR* pName;
  int32_t eSubCategory;
};

static const FX_LOCALESUBCATEGORYINFO g_FXLocaleDateTimeSubCatData[] = {
    {0x14da2125, L"default", FX_LOCALEDATETIMESUBCATEGORY_Default},
    {0x9041d4b0, L"short", FX_LOCALEDATETIMESUBCATEGORY_Short},
    {0xa084a381, L"medium", FX_LOCALEDATETIMESUBCATEGORY_Medium},
    {0xcdce56b3, L"full", FX_LOCALEDATETIMESUBCATEGORY_Full},
    {0xf6b4afb0, L"long", FX_LOCALEDATETIMESUBCATEGORY_Long},
};
static const int32_t g_iFXLocaleDateTimeSubCatCount =
    sizeof(g_FXLocaleDateTimeSubCatData) / sizeof(FX_LOCALESUBCATEGORYINFO);

static const FX_LOCALESUBCATEGORYINFO g_FXLocaleNumSubCatData[] = {
    {0x46f95531, L"percent", FX_LOCALENUMPATTERN_Percent},
    {0x4c4e8acb, L"currency", FX_LOCALENUMPATTERN_Currency},
    {0x54034c2f, L"decimal", FX_LOCALENUMPATTERN_Decimal},
    {0x7568e6ae, L"integer", FX_LOCALENUMPATTERN_Integer},
};
static const int32_t g_iFXLocaleNumSubCatCount =
    sizeof(g_FXLocaleNumSubCatData) / sizeof(FX_LOCALESUBCATEGORYINFO);

struct FX_LOCALETIMEZONEINFO {
  uint32_t uHash;
  int16_t iHour;
  int16_t iMinute;
};

static const FX_LOCALETIMEZONEINFO g_FXLocaleTimeZoneData[] = {
    {FXBSTR_ID(0, 'C', 'D', 'T'), -5, 0}, {FXBSTR_ID(0, 'C', 'S', 'T'), -6, 0},
    {FXBSTR_ID(0, 'E', 'D', 'T'), -4, 0}, {FXBSTR_ID(0, 'E', 'S', 'T'), -5, 0},
    {FXBSTR_ID(0, 'M', 'D', 'T'), -6, 0}, {FXBSTR_ID(0, 'M', 'S', 'T'), -7, 0},
    {FXBSTR_ID(0, 'P', 'D', 'T'), -7, 0}, {FXBSTR_ID(0, 'P', 'S', 'T'), -8, 0},
};

static const FX_WCHAR gs_wsTimeSymbols[] = L"hHkKMSFAzZ";
static const FX_WCHAR gs_wsDateSymbols[] = L"DJMEeGgYwW";
static const FX_WCHAR gs_wsConstChars[] = L",-:/. ";

static int32_t FX_ParseTimeZone(const FX_WCHAR* pStr,
                                int32_t iLen,
                                FX_TIMEZONE& tz) {
  tz.tzHour = 0;
  tz.tzMinute = 0;
  if (iLen < 0) {
    return 0;
  }
  int32_t iStart = 1;
  int32_t iEnd = iStart + 2;
  while (iStart < iLen && iStart < iEnd) {
    tz.tzHour = tz.tzHour * 10 + pStr[iStart++] - '0';
  }
  if (iStart < iLen && pStr[iStart] == ':') {
    iStart++;
  }
  iEnd = iStart + 2;
  while (iStart < iLen && iStart < iEnd) {
    tz.tzMinute = tz.tzMinute * 10 + pStr[iStart++] - '0';
  }
  if (pStr[0] == '-') {
    tz.tzHour = -tz.tzHour;
  }
  return iStart;
}

class CFX_LCNumeric {
 public:
  CFX_LCNumeric();
  CFX_LCNumeric(int64_t integral,
                uint32_t fractional = 0,
                int32_t exponent = 0);
  CFX_LCNumeric(FX_FLOAT dbRetValue);
  CFX_LCNumeric(double dbvalue);
  CFX_LCNumeric(CFX_WideString& wsNumeric);

  FX_FLOAT GetFloat() const;
  double GetDouble() const;
  CFX_WideString ToString() const;
  CFX_WideString ToString(int32_t nTreading, bool bTrimTailZeros) const;

  int64_t m_Integral;
  uint32_t m_Fractional;
  int32_t m_Exponent;
};

static bool FX_WStringToNumeric(const CFX_WideString& wsValue,
                                CFX_LCNumeric& lcnum) {
  lcnum.m_Integral = 0;
  lcnum.m_Fractional = 0;
  lcnum.m_Exponent = 0;

  if (wsValue.IsEmpty())
    return false;

  const int32_t nIntegralMaxLen = 17;
  int32_t cc = 0;
  bool bNegative = false;
  bool bExpSign = false;
  const FX_WCHAR* str = wsValue.c_str();
  int32_t len = wsValue.GetLength();
  while (cc < len && FXSYS_iswspace(str[cc]))
    cc++;

  if (cc >= len)
    return false;

  if (str[cc] == '+') {
    cc++;
  } else if (str[cc] == '-') {
    bNegative = true;
    cc++;
  }
  int32_t nIntegralLen = 0;
  while (cc < len) {
    if (str[cc] == '.')
      break;

    if (!FXSYS_isDecimalDigit(str[cc])) {
      if ((str[cc] == 'E' || str[cc] == 'e'))
        break;
      return false;
    }
    if (nIntegralLen < nIntegralMaxLen) {
      lcnum.m_Integral = lcnum.m_Integral * 10 + str[cc] - '0';
      nIntegralLen++;
    }
    cc++;
  }

  lcnum.m_Integral = bNegative ? -lcnum.m_Integral : lcnum.m_Integral;
  if (cc < len && str[cc] == '.') {
    int scale = 0;
    double fraction = 0.0;
    cc++;
    while (cc < len) {
      if (scale >= FXSYS_FractionalScaleCount()) {
        while (cc < len) {
          if (!FXSYS_isDecimalDigit(str[cc]))
            break;
          cc++;
        }
      }
      if (!FXSYS_isDecimalDigit(str[cc])) {
        if ((str[cc] == 'E' || str[cc] == 'e'))
          break;
        return false;
      }
      fraction += FXSYS_FractionalScale(scale, FXSYS_toDecimalDigit(str[cc]));
      scale++;
      cc++;
    }
    lcnum.m_Fractional = (uint32_t)(fraction * 4294967296.0);
  }
  if (cc < len && (str[cc] == 'E' || str[cc] == 'e')) {
    cc++;
    if (cc < len) {
      if (str[cc] == '+') {
        cc++;
      } else if (str[cc] == '-') {
        bExpSign = true;
        cc++;
      }
    }
    while (cc < len) {
      if (FXSYS_isDecimalDigit(str[cc]))
        return false;
      lcnum.m_Exponent = lcnum.m_Exponent * 10 + str[cc] - '0';
      cc++;
    }
    lcnum.m_Exponent = bExpSign ? -lcnum.m_Exponent : lcnum.m_Exponent;
  }
  return true;
}

CFX_LCNumeric::CFX_LCNumeric() {
  m_Integral = 0;
  m_Fractional = 0;
  m_Exponent = 0;
}
CFX_LCNumeric::CFX_LCNumeric(int64_t integral,
                             uint32_t fractional,
                             int32_t exponent) {
  m_Integral = integral;
  m_Fractional = fractional;
  m_Exponent = exponent;
}
CFX_LCNumeric::CFX_LCNumeric(FX_FLOAT dbRetValue) {
  m_Integral = (int64_t)dbRetValue;
  m_Fractional = (uint32_t)(((dbRetValue > 0) ? (dbRetValue - m_Integral)
                                              : (m_Integral - dbRetValue)) *
                            4294967296);
  m_Exponent = 0;
}
CFX_LCNumeric::CFX_LCNumeric(double dbvalue) {
  m_Integral = (int64_t)dbvalue;
  m_Fractional = (uint32_t)(
      ((dbvalue > 0) ? (dbvalue - m_Integral) : (m_Integral - dbvalue)) *
      4294967296);
  m_Exponent = 0;
}
CFX_LCNumeric::CFX_LCNumeric(CFX_WideString& wsNumeric) {
  FX_WStringToNumeric(wsNumeric, *this);
}
FX_FLOAT CFX_LCNumeric::GetFloat() const {
  FX_FLOAT dbRetValue = m_Fractional / 4294967296.0f;
  dbRetValue = m_Integral + (m_Integral >= 0 ? dbRetValue : -dbRetValue);
  if (m_Exponent != 0) {
    dbRetValue *= FXSYS_pow(10, (FX_FLOAT)m_Exponent);
  }
  return dbRetValue;
}
double CFX_LCNumeric::GetDouble() const {
  double value = m_Fractional / 4294967296.0;
  value = m_Integral + (m_Integral >= 0 ? value : -value);
  if (m_Exponent != 0) {
    value *= FXSYS_pow(10, (FX_FLOAT)m_Exponent);
  }
  return value;
}

CFX_WideString CFX_LCNumeric::ToString() const {
  return ToString(8, true);
}

CFX_WideString CFX_LCNumeric::ToString(int32_t nTreading,
                                       bool bTrimTailZeros) const {
  CFX_WideString wsFormat;
  wsFormat.Format(L"%%.%df", nTreading);
  CFX_WideString wsResult;
  wsResult.Format(wsFormat.c_str(), GetDouble());
  if (bTrimTailZeros && nTreading > 0) {
    wsResult.TrimRight(L"0");
    wsResult.TrimRight(L".");
  }
  return wsResult;
}

CFX_FormatString::CFX_FormatString(IFX_LocaleMgr* pLocaleMgr, bool bUseLCID)
    : m_pLocaleMgr(pLocaleMgr), m_bUseLCID(bUseLCID) {}
CFX_FormatString::~CFX_FormatString() {}
void CFX_FormatString::SplitFormatString(const CFX_WideString& wsFormatString,
                                         CFX_WideStringArray& wsPatterns) {
  int32_t iStrLen = wsFormatString.GetLength();
  const FX_WCHAR* pStr = wsFormatString.c_str();
  const FX_WCHAR* pToken = pStr;
  const FX_WCHAR* pEnd = pStr + iStrLen;
  bool iQuote = false;
  while (true) {
    if (pStr >= pEnd) {
      CFX_WideString sub(pToken, pStr - pToken);
      wsPatterns.Add(sub);
      return;
    }
    if (*pStr == '\'') {
      iQuote = !iQuote;
    } else if (*pStr == L'|' && !iQuote) {
      CFX_WideString sub(pToken, pStr - pToken);
      wsPatterns.Add(sub);
      pToken = pStr + 1;
    }
    pStr++;
  }
}
static CFX_WideString FX_GetLiteralText(const FX_WCHAR* pStrPattern,
                                        int32_t& iPattern,
                                        int32_t iLenPattern) {
  CFX_WideString wsOutput;
  if (pStrPattern[iPattern] != '\'') {
    return wsOutput;
  }
  iPattern++;
  int32_t iQuote = 1;
  while (iPattern < iLenPattern) {
    if (pStrPattern[iPattern] == '\'') {
      iQuote++;
      if ((iPattern + 1 >= iLenPattern) ||
          ((pStrPattern[iPattern + 1] != '\'') && (iQuote % 2 == 0))) {
        break;
      } else {
        iQuote++;
      }
      iPattern++;
    } else if (pStrPattern[iPattern] == '\\' && (iPattern + 1 < iLenPattern) &&
               pStrPattern[iPattern + 1] == 'u') {
      int32_t iKeyValue = 0;
      iPattern += 2;
      int32_t i = 0;
      while (iPattern < iLenPattern && i++ < 4) {
        FX_WCHAR ch = pStrPattern[iPattern++];
        if ((ch >= '0' && ch <= '9')) {
          iKeyValue = iKeyValue * 16 + ch - '0';
        } else if ((ch >= 'a' && ch <= 'f')) {
          iKeyValue = iKeyValue * 16 + ch - 'a' + 10;
        } else if ((ch >= 'A' && ch <= 'F')) {
          iKeyValue = iKeyValue * 16 + ch - 'A' + 10;
        }
      }
      if (iKeyValue != 0) {
        wsOutput += (FX_WCHAR)(iKeyValue & 0x0000FFFF);
      }
      continue;
    }
    wsOutput += pStrPattern[iPattern++];
  }
  return wsOutput;
}
static CFX_WideString FX_GetLiteralTextReverse(const FX_WCHAR* pStrPattern,
                                               int32_t& iPattern) {
  CFX_WideString wsOutput;
  if (pStrPattern[iPattern] != '\'') {
    return wsOutput;
  }
  iPattern--;
  int32_t iQuote = 1;
  while (iPattern >= 0) {
    if (pStrPattern[iPattern] == '\'') {
      iQuote++;
      if (iPattern - 1 >= 0 ||
          ((pStrPattern[iPattern - 1] != '\'') && (iQuote % 2 == 0))) {
        break;
      }
      iQuote++;
      iPattern--;
    } else if (pStrPattern[iPattern] == '\\' &&
               pStrPattern[iPattern + 1] == 'u') {
      iPattern--;
      int32_t iKeyValue = 0;
      int32_t iLen = wsOutput.GetLength();
      int32_t i = 1;
      for (; i < iLen && i < 5; i++) {
        FX_WCHAR ch = wsOutput[i];
        if ((ch >= '0' && ch <= '9')) {
          iKeyValue = iKeyValue * 16 + ch - '0';
        } else if ((ch >= 'a' && ch <= 'f')) {
          iKeyValue = iKeyValue * 16 + ch - 'a' + 10;
        } else if ((ch >= 'A' && ch <= 'F')) {
          iKeyValue = iKeyValue * 16 + ch - 'A' + 10;
        }
      }
      if (iKeyValue != 0) {
        wsOutput.Delete(0, i);
        wsOutput = (FX_WCHAR)(iKeyValue & 0x0000FFFF) + wsOutput;
      }
      continue;
    }
    wsOutput = pStrPattern[iPattern--] + wsOutput;
  }
  return wsOutput;
}
FX_LOCALECATEGORY CFX_FormatString::GetCategory(
    const CFX_WideString& wsPattern) {
  FX_LOCALECATEGORY eCategory = FX_LOCALECATEGORY_Unknown;
  int32_t ccf = 0;
  int32_t iLenf = wsPattern.GetLength();
  const FX_WCHAR* pStr = wsPattern.c_str();
  bool bBraceOpen = false;
  CFX_WideStringC wsConstChars(gs_wsConstChars);
  while (ccf < iLenf) {
    if (pStr[ccf] == '\'') {
      FX_GetLiteralText(pStr, ccf, iLenf);
    } else if (!bBraceOpen && wsConstChars.Find(pStr[ccf]) == -1) {
      CFX_WideString wsCategory(pStr[ccf]);
      ccf++;
      while (true) {
        if (ccf == iLenf) {
          return eCategory;
        }
        if (pStr[ccf] == '.' || pStr[ccf] == '(') {
          break;
        }
        if (pStr[ccf] == '{') {
          bBraceOpen = true;
          break;
        }
        wsCategory += pStr[ccf];
        ccf++;
      }
      uint32_t dwHash = FX_HashCode_GetW(wsCategory.AsStringC(), false);
      if (dwHash == FX_LOCALECATEGORY_DateHash) {
        if (eCategory == FX_LOCALECATEGORY_Time) {
          return FX_LOCALECATEGORY_DateTime;
        }
        eCategory = FX_LOCALECATEGORY_Date;
      } else if (dwHash == FX_LOCALECATEGORY_TimeHash) {
        if (eCategory == FX_LOCALECATEGORY_Date) {
          return FX_LOCALECATEGORY_DateTime;
        }
        eCategory = FX_LOCALECATEGORY_Time;
      } else if (dwHash == FX_LOCALECATEGORY_DateTimeHash) {
        return FX_LOCALECATEGORY_DateTime;
      } else if (dwHash == FX_LOCALECATEGORY_TextHash) {
        return FX_LOCALECATEGORY_Text;
      } else if (dwHash == FX_LOCALECATEGORY_NumHash) {
        return FX_LOCALECATEGORY_Num;
      } else if (dwHash == FX_LOCALECATEGORY_ZeroHash) {
        return FX_LOCALECATEGORY_Zero;
      } else if (dwHash == FX_LOCALECATEGORY_NullHash) {
        return FX_LOCALECATEGORY_Null;
      }
    } else if (pStr[ccf] == '}') {
      bBraceOpen = false;
    }
    ccf++;
  }
  return eCategory;
}
static uint16_t FX_WStringToLCID(const FX_WCHAR* pstrLCID) {
  if (!pstrLCID) {
    return 0;
  }
  wchar_t* pEnd;
  return (uint16_t)wcstol((wchar_t*)pstrLCID, &pEnd, 16);
}
uint16_t CFX_FormatString::GetLCID(const CFX_WideString& wsPattern) {
  return FX_WStringToLCID(GetLocaleName(wsPattern).c_str());
}
CFX_WideString CFX_FormatString::GetLocaleName(
    const CFX_WideString& wsPattern) {
  int32_t ccf = 0;
  int32_t iLenf = wsPattern.GetLength();
  const FX_WCHAR* pStr = wsPattern.c_str();
  while (ccf < iLenf) {
    if (pStr[ccf] == '\'') {
      FX_GetLiteralText(pStr, ccf, iLenf);
    } else if (pStr[ccf] == '(') {
      ccf++;
      CFX_WideString wsLCID;
      while (ccf < iLenf && pStr[ccf] != ')') {
        wsLCID += pStr[ccf++];
      }
      return wsLCID;
    }
    ccf++;
  }
  return CFX_WideString();
}
IFX_Locale* CFX_FormatString::GetTextFormat(const CFX_WideString& wsPattern,
                                            const CFX_WideStringC& wsCategory,
                                            CFX_WideString& wsPurgePattern) {
  IFX_Locale* pLocale = nullptr;
  int32_t ccf = 0;
  int32_t iLenf = wsPattern.GetLength();
  const FX_WCHAR* pStr = wsPattern.c_str();
  bool bBrackOpen = false;
  CFX_WideStringC wsConstChars(gs_wsConstChars);
  while (ccf < iLenf) {
    if (pStr[ccf] == '\'') {
      int32_t iCurChar = ccf;
      FX_GetLiteralText(pStr, ccf, iLenf);
      wsPurgePattern += CFX_WideStringC(pStr + iCurChar, ccf - iCurChar + 1);
    } else if (!bBrackOpen && wsConstChars.Find(pStr[ccf]) == -1) {
      CFX_WideString wsSearchCategory(pStr[ccf]);
      ccf++;
      while (ccf < iLenf && pStr[ccf] != '{' && pStr[ccf] != '.' &&
             pStr[ccf] != '(') {
        wsSearchCategory += pStr[ccf];
        ccf++;
      }
      if (wsSearchCategory != wsCategory) {
        continue;
      }
      while (ccf < iLenf) {
        if (pStr[ccf] == '(') {
          ccf++;
          CFX_WideString wsLCID;
          while (ccf < iLenf && pStr[ccf] != ')') {
            wsLCID += pStr[ccf++];
          }
          pLocale = GetPatternLocale(wsLCID);
        } else if (pStr[ccf] == '{') {
          bBrackOpen = true;
          break;
        }
        ccf++;
      }
    } else if (pStr[ccf] != '}') {
      wsPurgePattern += pStr[ccf];
    }
    ccf++;
  }
  if (!bBrackOpen) {
    wsPurgePattern = wsPattern;
  }
  if (!pLocale) {
    pLocale = m_pLocaleMgr->GetDefLocale();
  }
  return pLocale;
}
#define FX_NUMSTYLE_Percent 0x01
#define FX_NUMSTYLE_Exponent 0x02
#define FX_NUMSTYLE_DotVorv 0x04
IFX_Locale* CFX_FormatString::GetNumericFormat(const CFX_WideString& wsPattern,
                                               int32_t& iDotIndex,
                                               uint32_t& dwStyle,
                                               CFX_WideString& wsPurgePattern) {
  dwStyle = 0;
  IFX_Locale* pLocale = nullptr;
  int32_t ccf = 0;
  int32_t iLenf = wsPattern.GetLength();
  const FX_WCHAR* pStr = wsPattern.c_str();
  bool bFindDot = false;
  bool bBrackOpen = false;
  CFX_WideStringC wsConstChars(gs_wsConstChars);
  while (ccf < iLenf) {
    if (pStr[ccf] == '\'') {
      int32_t iCurChar = ccf;
      FX_GetLiteralText(pStr, ccf, iLenf);
      wsPurgePattern += CFX_WideStringC(pStr + iCurChar, ccf - iCurChar + 1);
    } else if (!bBrackOpen && wsConstChars.Find(pStr[ccf]) == -1) {
      CFX_WideString wsCategory(pStr[ccf]);
      ccf++;
      while (ccf < iLenf && pStr[ccf] != '{' && pStr[ccf] != '.' &&
             pStr[ccf] != '(') {
        wsCategory += pStr[ccf];
        ccf++;
      }
      if (wsCategory != FX_WSTRC(L"num")) {
        bBrackOpen = true;
        ccf = 0;
        continue;
      }
      while (ccf < iLenf) {
        if (pStr[ccf] == '(') {
          ccf++;
          CFX_WideString wsLCID;
          while (ccf < iLenf && pStr[ccf] != ')') {
            wsLCID += pStr[ccf++];
          }
          pLocale = GetPatternLocale(wsLCID);
        } else if (pStr[ccf] == '{') {
          bBrackOpen = true;
          break;
        } else if (pStr[ccf] == '.') {
          CFX_WideString wsSubCategory;
          ccf++;
          while (ccf < iLenf && pStr[ccf] != '(' && pStr[ccf] != '{') {
            wsSubCategory += pStr[ccf++];
          }
          uint32_t dwSubHash =
              FX_HashCode_GetW(wsSubCategory.AsStringC(), false);
          FX_LOCALENUMSUBCATEGORY eSubCategory = FX_LOCALENUMPATTERN_Decimal;
          for (int32_t i = 0; i < g_iFXLocaleNumSubCatCount; i++) {
            if (g_FXLocaleNumSubCatData[i].uHash == dwSubHash) {
              eSubCategory = (FX_LOCALENUMSUBCATEGORY)g_FXLocaleNumSubCatData[i]
                                 .eSubCategory;
              break;
            }
          }
          wsSubCategory.clear();
          if (!pLocale) {
            pLocale = m_pLocaleMgr->GetDefLocale();
          }
          ASSERT(pLocale);
          pLocale->GetNumPattern(eSubCategory, wsSubCategory);
          iDotIndex = wsSubCategory.Find('.');
          if (iDotIndex > 0) {
            iDotIndex += wsPurgePattern.GetLength();
            bFindDot = true;
            dwStyle |= FX_NUMSTYLE_DotVorv;
          }
          wsPurgePattern += wsSubCategory;
          if (eSubCategory == FX_LOCALENUMPATTERN_Percent) {
            dwStyle |= FX_NUMSTYLE_Percent;
          }
          continue;
        }
        ccf++;
      }
    } else if (pStr[ccf] == 'E') {
      dwStyle |= FX_NUMSTYLE_Exponent;
      wsPurgePattern += pStr[ccf];
    } else if (pStr[ccf] == '%') {
      dwStyle |= FX_NUMSTYLE_Percent;
      wsPurgePattern += pStr[ccf];
    } else if (pStr[ccf] != '}') {
      wsPurgePattern += pStr[ccf];
    }
    if (!bFindDot) {
      if (pStr[ccf] == '.' || pStr[ccf] == 'V' || pStr[ccf] == 'v') {
        bFindDot = true;
        iDotIndex = wsPurgePattern.GetLength() - 1;
        dwStyle |= FX_NUMSTYLE_DotVorv;
      }
    }
    ccf++;
  }
  if (!bFindDot) {
    iDotIndex = wsPurgePattern.GetLength();
  }
  if (!pLocale) {
    pLocale = m_pLocaleMgr->GetDefLocale();
  }
  return pLocale;
}
static bool FX_GetNumericDotIndex(const CFX_WideString& wsNum,
                                  const CFX_WideString& wsDotSymbol,
                                  int32_t& iDotIndex) {
  int32_t ccf = 0;
  int32_t iLenf = wsNum.GetLength();
  const FX_WCHAR* pStr = wsNum.c_str();
  int32_t iLenDot = wsDotSymbol.GetLength();
  while (ccf < iLenf) {
    if (pStr[ccf] == '\'') {
      FX_GetLiteralText(pStr, ccf, iLenf);
    } else if (ccf + iLenDot <= iLenf &&
               !FXSYS_wcsncmp(pStr + ccf, wsDotSymbol.c_str(), iLenDot)) {
      iDotIndex = ccf;
      return true;
    }
    ccf++;
  }
  iDotIndex = wsNum.Find('.');
  if (iDotIndex < 0) {
    iDotIndex = iLenf;
    return false;
  }
  return true;
}
bool CFX_FormatString::ParseText(const CFX_WideString& wsSrcText,
                                 const CFX_WideString& wsPattern,
                                 CFX_WideString& wsValue) {
  wsValue.clear();
  if (wsSrcText.IsEmpty() || wsPattern.IsEmpty()) {
    return false;
  }
  CFX_WideString wsTextFormat;
  GetTextFormat(wsPattern, FX_WSTRC(L"text"), wsTextFormat);
  if (wsTextFormat.IsEmpty()) {
    return false;
  }
  int32_t iText = 0, iPattern = 0;
  const FX_WCHAR* pStrText = wsSrcText.c_str();
  int32_t iLenText = wsSrcText.GetLength();
  const FX_WCHAR* pStrPattern = wsTextFormat.c_str();
  int32_t iLenPattern = wsTextFormat.GetLength();
  while (iPattern < iLenPattern && iText < iLenText) {
    switch (pStrPattern[iPattern]) {
      case '\'': {
        CFX_WideString wsLiteral =
            FX_GetLiteralText(pStrPattern, iPattern, iLenPattern);
        int32_t iLiteralLen = wsLiteral.GetLength();
        if (iText + iLiteralLen > iLenText ||
            FXSYS_wcsncmp(pStrText + iText, wsLiteral.c_str(), iLiteralLen)) {
          wsValue = wsSrcText;
          return false;
        }
        iText += iLiteralLen;
        iPattern++;
        break;
      }
      case 'A':
        if (FXSYS_iswalpha(pStrText[iText])) {
          wsValue += pStrText[iText];
          iText++;
        }
        iPattern++;
        break;
      case 'X':
        wsValue += pStrText[iText];
        iText++;
        iPattern++;
        break;
      case 'O':
      case '0':
        if (FXSYS_isDecimalDigit(pStrText[iText]) ||
            FXSYS_iswalpha(pStrText[iText])) {
          wsValue += pStrText[iText];
          iText++;
        }
        iPattern++;
        break;
      case '9':
        if (FXSYS_isDecimalDigit(pStrText[iText])) {
          wsValue += pStrText[iText];
          iText++;
        }
        iPattern++;
        break;
      default:
        if (pStrPattern[iPattern] != pStrText[iText]) {
          wsValue = wsSrcText;
          return false;
        }
        iPattern++;
        iText++;
        break;
    }
  }
  return iPattern == iLenPattern && iText == iLenText;
}
bool CFX_FormatString::ParseNum(const CFX_WideString& wsSrcNum,
                                const CFX_WideString& wsPattern,
                                FX_FLOAT& fValue) {
  fValue = 0.0f;
  if (wsSrcNum.IsEmpty() || wsPattern.IsEmpty()) {
    return false;
  }
  int32_t dot_index_f = -1;
  uint32_t dwFormatStyle = 0;
  CFX_WideString wsNumFormat;
  IFX_Locale* pLocale =
      GetNumericFormat(wsPattern, dot_index_f, dwFormatStyle, wsNumFormat);
  if (!pLocale || wsNumFormat.IsEmpty()) {
    return false;
  }
  int32_t iExponent = 0;
  CFX_WideString wsDotSymbol;
  pLocale->GetNumbericSymbol(FX_LOCALENUMSYMBOL_Decimal, wsDotSymbol);
  CFX_WideString wsGroupSymbol;
  pLocale->GetNumbericSymbol(FX_LOCALENUMSYMBOL_Grouping, wsGroupSymbol);
  int32_t iGroupLen = wsGroupSymbol.GetLength();
  CFX_WideString wsMinus;
  pLocale->GetNumbericSymbol(FX_LOCALENUMSYMBOL_Minus, wsMinus);
  int32_t iMinusLen = wsMinus.GetLength();
  int cc = 0, ccf = 0;
  const FX_WCHAR* str = wsSrcNum.c_str();
  int len = wsSrcNum.GetLength();
  const FX_WCHAR* strf = wsNumFormat.c_str();
  int lenf = wsNumFormat.GetLength();
  double dbRetValue = 0;
  double coeff = 1;
  bool bHavePercentSymbol = false;
  bool bNeg = false;
  bool bReverseParse = false;
  int32_t dot_index = 0;
  if (!FX_GetNumericDotIndex(wsSrcNum, wsDotSymbol, dot_index) &&
      (dwFormatStyle & FX_NUMSTYLE_DotVorv)) {
    bReverseParse = true;
  }
  bReverseParse = false;
  if (bReverseParse) {
    ccf = lenf - 1;
    cc = len - 1;
    while (ccf > dot_index_f && cc >= 0) {
      switch (strf[ccf]) {
        case '\'': {
          CFX_WideString wsLiteral = FX_GetLiteralTextReverse(strf, ccf);
          int32_t iLiteralLen = wsLiteral.GetLength();
          cc -= iLiteralLen - 1;
          if (cc < 0 ||
              FXSYS_wcsncmp(str + cc, wsLiteral.c_str(), iLiteralLen)) {
            return false;
          }
          cc--;
          ccf--;
          break;
        }
        case '9':
          if (!FXSYS_isDecimalDigit(str[cc])) {
            return false;
          }
          dbRetValue = dbRetValue * coeff + (str[cc] - '0') * 0.1;
          coeff *= 0.1;
          cc--;
          ccf--;
          break;
        case 'z':
          if (cc >= 0) {
            dbRetValue = dbRetValue * coeff + (str[cc] - '0') * 0.1;
            coeff *= 0.1;
            cc--;
          }
          ccf--;
          break;
        case 'Z':
          if (str[cc] != ' ') {
            dbRetValue = dbRetValue * coeff + (str[cc] - '0') * 0.1;
            coeff *= 0.1;
          }
          cc--;
          ccf--;
          break;
        case 'S':
          if (str[cc] == '+' || str[cc] == ' ') {
            cc--;
          } else {
            cc -= iMinusLen - 1;
            if (cc < 0 || FXSYS_wcsncmp(str + cc, wsMinus.c_str(), iMinusLen)) {
              return false;
            }
            cc--;
            bNeg = true;
          }
          ccf--;
          break;
        case 's':
          if (str[cc] == '+') {
            cc--;
          } else {
            cc -= iMinusLen - 1;
            if (cc < 0 || FXSYS_wcsncmp(str + cc, wsMinus.c_str(), iMinusLen)) {
              return false;
            }
            cc--;
            bNeg = true;
          }
          ccf--;
          break;
        case 'E': {
          if (cc >= dot_index) {
            return false;
          }
          bool bExpSign = false;
          while (cc >= 0) {
            if (str[cc] == 'E' || str[cc] == 'e') {
              break;
            }
            if (FXSYS_isDecimalDigit(str[cc])) {
              iExponent = iExponent + (str[cc] - '0') * 10;
              cc--;
              continue;
            } else if (str[cc] == '+') {
              cc--;
              continue;
            } else if (cc - iMinusLen + 1 > 0 &&
                       !FXSYS_wcsncmp(str + (cc - iMinusLen + 1),
                                      wsMinus.c_str(), iMinusLen)) {
              bExpSign = true;
              cc -= iMinusLen;
            } else {
              return false;
            }
          }
          cc--;
          iExponent = bExpSign ? -iExponent : iExponent;
          ccf--;
        } break;
        case '$': {
          CFX_WideString wsSymbol;
          pLocale->GetNumbericSymbol(FX_LOCALENUMSYMBOL_CurrencySymbol,
                                     wsSymbol);
          int32_t iSymbolLen = wsSymbol.GetLength();
          cc -= iSymbolLen - 1;
          if (cc < 0 || FXSYS_wcsncmp(str + cc, wsSymbol.c_str(), iSymbolLen)) {
            return false;
          }
          cc--;
          ccf--;
        } break;
        case 'r':
          if (ccf - 1 >= 0 && strf[ccf - 1] == 'c') {
            if (str[cc] == 'R' && cc - 1 >= 0 && str[cc - 1] == 'C') {
              bNeg = true;
              cc -= 2;
            }
            ccf -= 2;
          } else {
            ccf--;
          }
          break;
        case 'R':
          if (ccf - 1 >= 0 && strf[ccf - 1] == 'C') {
            if (str[cc] == ' ') {
              cc++;
            } else if (str[cc] == 'R' && cc - 1 >= 0 && str[cc - 1] == 'C') {
              bNeg = true;
              cc -= 2;
            }
            ccf -= 2;
          } else {
            ccf--;
          }
          break;
        case 'b':
          if (ccf - 1 >= 0 && strf[ccf - 1] == 'd') {
            if (str[cc] == 'B' && cc - 1 >= 0 && str[cc - 1] == 'D') {
              bNeg = true;
              cc -= 2;
            }
            ccf -= 2;
          } else {
            ccf--;
          }
          break;
        case 'B':
          if (ccf - 1 >= 0 && strf[ccf - 1] == 'D') {
            if (str[cc] == ' ') {
              cc++;
            } else if (str[cc] == 'B' && cc - 1 >= 0 && str[cc - 1] == 'D') {
              bNeg = true;
              cc -= 2;
            }
            ccf -= 2;
          } else {
            ccf--;
          }
          break;
        case '.':
        case 'V':
        case 'v':
          return false;
        case '%': {
          CFX_WideString wsSymbol;
          pLocale->GetNumbericSymbol(FX_LOCALENUMSYMBOL_Percent, wsSymbol);
          int32_t iSysmbolLen = wsSymbol.GetLength();
          cc -= iSysmbolLen - 1;
          if (cc < 0 ||
              FXSYS_wcsncmp(str + cc, wsSymbol.c_str(), iSysmbolLen)) {
            return false;
          }
          cc--;
          ccf--;
          bHavePercentSymbol = true;
        } break;
        case '8':
          while (ccf < lenf && strf[ccf] == '8') {
            ccf++;
          }
          while (cc < len && FXSYS_isDecimalDigit(str[cc])) {
            dbRetValue = (str[cc] - '0') * coeff + dbRetValue;
            coeff *= 0.1;
            cc++;
          }
          break;
        case ',': {
          if (cc >= 0) {
            cc -= iGroupLen - 1;
            if (cc >= 0 &&
                FXSYS_wcsncmp(str + cc, wsGroupSymbol.c_str(), iGroupLen) ==
                    0) {
              cc--;
            } else {
              cc += iGroupLen - 1;
            }
          }
          ccf--;
        } break;
        case '(':
          if (str[cc] == L'(') {
            bNeg = true;
          } else if (str[cc] != L' ') {
            return false;
          }
          cc--;
          ccf--;
          break;
        case ')':
          if (str[cc] == L')') {
            bNeg = true;
          } else if (str[cc] != L' ') {
            return false;
          }
          cc--;
          ccf--;
          break;
        default:
          if (strf[ccf] != str[cc]) {
            return false;
          }
          cc--;
          ccf--;
      }
    }
    dot_index = cc + 1;
  }
  ccf = dot_index_f - 1;
  cc = dot_index - 1;
  coeff = 1;
  while (ccf >= 0 && cc >= 0) {
    switch (strf[ccf]) {
      case '\'': {
        CFX_WideString wsLiteral = FX_GetLiteralTextReverse(strf, ccf);
        int32_t iLiteralLen = wsLiteral.GetLength();
        cc -= iLiteralLen - 1;
        if (cc < 0 || FXSYS_wcsncmp(str + cc, wsLiteral.c_str(), iLiteralLen)) {
          return false;
        }
        cc--;
        ccf--;
        break;
      }
      case '9':
        if (!FXSYS_isDecimalDigit(str[cc])) {
          return false;
        }
        dbRetValue = dbRetValue + (str[cc] - '0') * coeff;
        coeff *= 10;
        cc--;
        ccf--;
        break;
      case 'z':
        if (FXSYS_isDecimalDigit(str[cc])) {
          dbRetValue = dbRetValue + (str[cc] - '0') * coeff;
          coeff *= 10;
          cc--;
        }
        ccf--;
        break;
      case 'Z':
        if (str[cc] != ' ') {
          if (FXSYS_isDecimalDigit(str[cc])) {
            dbRetValue = dbRetValue + (str[cc] - '0') * coeff;
            coeff *= 10;
            cc--;
          }
        } else {
          cc--;
        }
        ccf--;
        break;
      case 'S':
        if (str[cc] == '+' || str[cc] == ' ') {
          cc--;
        } else {
          cc -= iMinusLen - 1;
          if (cc < 0 || FXSYS_wcsncmp(str + cc, wsMinus.c_str(), iMinusLen)) {
            return false;
          }
          cc--;
          bNeg = true;
        }
        ccf--;
        break;
      case 's':
        if (str[cc] == '+') {
          cc--;
        } else {
          cc -= iMinusLen - 1;
          if (cc < 0 || FXSYS_wcsncmp(str + cc, wsMinus.c_str(), iMinusLen)) {
            return false;
          }
          cc--;
          bNeg = true;
        }
        ccf--;
        break;
      case 'E': {
        if (cc >= dot_index) {
          return false;
        }
        bool bExpSign = false;
        while (cc >= 0) {
          if (str[cc] == 'E' || str[cc] == 'e') {
            break;
          }
          if (FXSYS_isDecimalDigit(str[cc])) {
            iExponent = iExponent + (str[cc] - '0') * 10;
            cc--;
            continue;
          } else if (str[cc] == '+') {
            cc--;
            continue;
          } else if (cc - iMinusLen + 1 > 0 &&
                     !FXSYS_wcsncmp(str + (cc - iMinusLen + 1), wsMinus.c_str(),
                                    iMinusLen)) {
            bExpSign = true;
            cc -= iMinusLen;
          } else {
            return false;
          }
        }
        cc--;
        iExponent = bExpSign ? -iExponent : iExponent;
        ccf--;
      } break;
      case '$': {
        CFX_WideString wsSymbol;
        pLocale->GetNumbericSymbol(FX_LOCALENUMSYMBOL_CurrencySymbol, wsSymbol);
        int32_t iSymbolLen = wsSymbol.GetLength();
        cc -= iSymbolLen - 1;
        if (cc < 0 || FXSYS_wcsncmp(str + cc, wsSymbol.c_str(), iSymbolLen)) {
          return false;
        }
        cc--;
        ccf--;
      } break;
      case 'r':
        if (ccf - 1 >= 0 && strf[ccf - 1] == 'c') {
          if (str[cc] == 'R' && cc - 1 >= 0 && str[cc - 1] == 'C') {
            bNeg = true;
            cc -= 2;
          }
          ccf -= 2;
        } else {
          ccf--;
        }
        break;
      case 'R':
        if (ccf - 1 >= 0 && strf[ccf - 1] == 'C') {
          if (str[cc] == ' ') {
            cc++;
          } else if (str[cc] == 'R' && cc - 1 >= 0 && str[cc - 1] == 'C') {
            bNeg = true;
            cc -= 2;
          }
          ccf -= 2;
        } else {
          ccf--;
        }
        break;
      case 'b':
        if (ccf - 1 >= 0 && strf[ccf - 1] == 'd') {
          if (str[cc] == 'B' && cc - 1 >= 0 && str[cc - 1] == 'D') {
            bNeg = true;
            cc -= 2;
          }
          ccf -= 2;
        } else {
          ccf--;
        }
        break;
      case 'B':
        if (ccf - 1 >= 0 && strf[ccf - 1] == 'D') {
          if (str[cc] == ' ') {
            cc++;
          } else if (str[cc] == 'B' && cc - 1 >= 0 && str[cc - 1] == 'D') {
            bNeg = true;
            cc -= 2;
          }
          ccf -= 2;
        } else {
          ccf--;
        }
        break;
      case '.':
      case 'V':
      case 'v':
        return false;
      case '%': {
        CFX_WideString wsSymbol;
        pLocale->GetNumbericSymbol(FX_LOCALENUMSYMBOL_Percent, wsSymbol);
        int32_t iSysmbolLen = wsSymbol.GetLength();
        cc -= iSysmbolLen - 1;
        if (cc < 0 || FXSYS_wcsncmp(str + cc, wsSymbol.c_str(), iSysmbolLen)) {
          return false;
        }
        cc--;
        ccf--;
        bHavePercentSymbol = true;
      } break;
      case '8':
        return false;
      case ',': {
        if (cc >= 0) {
          cc -= iGroupLen - 1;
          if (cc >= 0 &&
              FXSYS_wcsncmp(str + cc, wsGroupSymbol.c_str(), iGroupLen) == 0) {
            cc--;
          } else {
            cc += iGroupLen - 1;
          }
        }
        ccf--;
      } break;
      case '(':
        if (str[cc] == L'(') {
          bNeg = true;
        } else if (str[cc] != L' ') {
          return false;
        }
        cc--;
        ccf--;
        break;
      case ')':
        if (str[cc] == L')') {
          bNeg = true;
        } else if (str[cc] != L' ') {
          return false;
        }
        cc--;
        ccf--;
        break;
      default:
        if (strf[ccf] != str[cc]) {
          return false;
        }
        cc--;
        ccf--;
    }
  }
  if (cc >= 0) {
    return false;
  }
  if (!bReverseParse) {
    ccf = dot_index_f + 1;
    cc = (dot_index == len) ? len : dot_index + 1;
    coeff = 0.1;
    while (cc < len && ccf < lenf) {
      switch (strf[ccf]) {
        case '\'': {
          CFX_WideString wsLiteral = FX_GetLiteralText(strf, ccf, lenf);
          int32_t iLiteralLen = wsLiteral.GetLength();
          if (cc + iLiteralLen > len ||
              FXSYS_wcsncmp(str + cc, wsLiteral.c_str(), iLiteralLen)) {
            return false;
          }
          cc += iLiteralLen;
          ccf++;
          break;
        }
        case '9':
          if (!FXSYS_isDecimalDigit(str[cc])) {
            return false;
          }
          {
            dbRetValue = dbRetValue + (str[cc] - '0') * coeff;
            coeff *= 0.1;
          }
          cc++;
          ccf++;
          break;
        case 'z':
          if (FXSYS_isDecimalDigit(str[cc])) {
            dbRetValue = dbRetValue + (str[cc] - '0') * coeff;
            coeff *= 0.1;
            cc++;
          }
          ccf++;
          break;
        case 'Z':
          if (str[cc] != ' ') {
            if (FXSYS_isDecimalDigit(str[cc])) {
              dbRetValue = dbRetValue + (str[cc] - '0') * coeff;
              coeff *= 0.1;
              cc++;
            }
          } else {
            cc++;
          }
          ccf++;
          break;
        case 'S':
          if (str[cc] == '+' || str[cc] == ' ') {
            cc++;
          } else {
            if (cc + iMinusLen > len ||
                FXSYS_wcsncmp(str + cc, wsMinus.c_str(), iMinusLen)) {
              return false;
            }
            bNeg = true;
            cc += iMinusLen;
          }
          ccf++;
          break;
        case 's':
          if (str[cc] == '+') {
            cc++;
          } else {
            if (cc + iMinusLen > len ||
                FXSYS_wcsncmp(str + cc, wsMinus.c_str(), iMinusLen)) {
              return false;
            }
            bNeg = true;
            cc += iMinusLen;
          }
          ccf++;
          break;
        case 'E': {
          if (cc >= len || (str[cc] != 'E' && str[cc] != 'e')) {
            return false;
          }
          bool bExpSign = false;
          cc++;
          if (cc < len) {
            if (str[cc] == '+') {
              cc++;
            } else if (str[cc] == '-') {
              bExpSign = true;
              cc++;
            }
          }
          while (cc < len) {
            if (!FXSYS_isDecimalDigit(str[cc])) {
              break;
            }
            iExponent = iExponent * 10 + str[cc] - '0';
            cc++;
          }
          iExponent = bExpSign ? -iExponent : iExponent;
          ccf++;
        } break;
        case '$': {
          CFX_WideString wsSymbol;
          pLocale->GetNumbericSymbol(FX_LOCALENUMSYMBOL_CurrencySymbol,
                                     wsSymbol);
          int32_t iSymbolLen = wsSymbol.GetLength();
          if (cc + iSymbolLen > len ||
              FXSYS_wcsncmp(str + cc, wsSymbol.c_str(), iSymbolLen)) {
            return false;
          }
          cc += iSymbolLen;
          ccf++;
        } break;
        case 'c':
          if (ccf + 1 < lenf && strf[ccf + 1] == 'r') {
            if (str[cc] == 'C' && cc + 1 < len && str[cc + 1] == 'R') {
              bNeg = true;
              cc += 2;
            }
            ccf += 2;
          }
          break;
        case 'C':
          if (ccf + 1 < lenf && strf[ccf + 1] == 'R') {
            if (str[cc] == ' ') {
              cc++;
            } else if (str[cc] == 'C' && cc + 1 < len && str[cc + 1] == 'R') {
              bNeg = true;
              cc += 2;
            }
            ccf += 2;
          }
          break;
        case 'd':
          if (ccf + 1 < lenf && strf[ccf + 1] == 'b') {
            if (str[cc] == 'D' && cc + 1 < len && str[cc + 1] == 'B') {
              bNeg = true;
              cc += 2;
            }
            ccf += 2;
          }
          break;
        case 'D':
          if (ccf + 1 < lenf && strf[ccf + 1] == 'B') {
            if (str[cc] == ' ') {
              cc++;
            } else if (str[cc] == 'D' && cc + 1 < len && str[cc + 1] == 'B') {
              bNeg = true;
              cc += 2;
            }
            ccf += 2;
          }
          break;
        case '.':
        case 'V':
        case 'v':
          return false;
        case '%': {
          CFX_WideString wsSymbol;
          pLocale->GetNumbericSymbol(FX_LOCALENUMSYMBOL_Percent, wsSymbol);
          int32_t iSysmbolLen = wsSymbol.GetLength();
          if (cc + iSysmbolLen <= len &&
              !FXSYS_wcsncmp(str + cc, wsSymbol.c_str(), iSysmbolLen)) {
            cc += iSysmbolLen;
          }
          ccf++;
          bHavePercentSymbol = true;
        } break;
        case '8': {
          while (ccf < lenf && strf[ccf] == '8') {
            ccf++;
          }
          while (cc < len && FXSYS_isDecimalDigit(str[cc])) {
            dbRetValue = (str[cc] - '0') * coeff + dbRetValue;
            coeff *= 0.1;
            cc++;
          }
        } break;
        case ',': {
          if (cc + iGroupLen <= len &&
              FXSYS_wcsncmp(str + cc, wsGroupSymbol.c_str(), iGroupLen) == 0) {
            cc += iGroupLen;
          }
          ccf++;
        } break;
        case '(':
          if (str[cc] == L'(') {
            bNeg = true;
          } else if (str[cc] != L' ') {
            return false;
          }
          cc++;
          ccf++;
          break;
        case ')':
          if (str[cc] == L')') {
            bNeg = true;
          } else if (str[cc] != L' ') {
            return false;
          }
          cc++;
          ccf++;
          break;
        default:
          if (strf[ccf] != str[cc]) {
            return false;
          }
          cc++;
          ccf++;
      }
    }
    if (cc != len) {
      return false;
    }
  }
  if (iExponent) {
    dbRetValue *= FXSYS_pow(10, (FX_FLOAT)iExponent);
  }
  if (bHavePercentSymbol) {
    dbRetValue /= 100.0;
  }
  if (bNeg) {
    dbRetValue = -dbRetValue;
  }
  fValue = (FX_FLOAT)dbRetValue;
  return true;
}

bool CFX_FormatString::ParseNum(const CFX_WideString& wsSrcNum,
                                const CFX_WideString& wsPattern,
                                CFX_WideString& wsValue) {
  wsValue.clear();
  if (wsSrcNum.IsEmpty() || wsPattern.IsEmpty()) {
    return false;
  }
  int32_t dot_index_f = -1;
  uint32_t dwFormatStyle = 0;
  CFX_WideString wsNumFormat;
  IFX_Locale* pLocale =
      GetNumericFormat(wsPattern, dot_index_f, dwFormatStyle, wsNumFormat);
  if (!pLocale || wsNumFormat.IsEmpty()) {
    return false;
  }
  int32_t iExponent = 0;
  CFX_WideString wsDotSymbol;
  pLocale->GetNumbericSymbol(FX_LOCALENUMSYMBOL_Decimal, wsDotSymbol);
  CFX_WideString wsGroupSymbol;
  pLocale->GetNumbericSymbol(FX_LOCALENUMSYMBOL_Grouping, wsGroupSymbol);
  int32_t iGroupLen = wsGroupSymbol.GetLength();
  CFX_WideString wsMinus;
  pLocale->GetNumbericSymbol(FX_LOCALENUMSYMBOL_Minus, wsMinus);
  int32_t iMinusLen = wsMinus.GetLength();
  int cc = 0, ccf = 0;
  const FX_WCHAR* str = wsSrcNum.c_str();
  int len = wsSrcNum.GetLength();
  const FX_WCHAR* strf = wsNumFormat.c_str();
  int lenf = wsNumFormat.GetLength();
  bool bHavePercentSymbol = false;
  bool bNeg = false;
  bool bReverseParse = false;
  int32_t dot_index = 0;
  if (!FX_GetNumericDotIndex(wsSrcNum, wsDotSymbol, dot_index) &&
      (dwFormatStyle & FX_NUMSTYLE_DotVorv)) {
    bReverseParse = true;
  }
  bReverseParse = false;
  ccf = dot_index_f - 1;
  cc = dot_index - 1;
  while (ccf >= 0 && cc >= 0) {
    switch (strf[ccf]) {
      case '\'': {
        CFX_WideString wsLiteral = FX_GetLiteralTextReverse(strf, ccf);
        int32_t iLiteralLen = wsLiteral.GetLength();
        cc -= iLiteralLen - 1;
        if (cc < 0 || FXSYS_wcsncmp(str + cc, wsLiteral.c_str(), iLiteralLen)) {
          return false;
        }
        cc--;
        ccf--;
        break;
      }
      case '9':
        if (!FXSYS_isDecimalDigit(str[cc])) {
          return false;
        }
        wsValue = str[cc] + wsValue;
        cc--;
        ccf--;
        break;
      case 'z':
        if (FXSYS_isDecimalDigit(str[cc])) {
          wsValue = str[cc] + wsValue;
          cc--;
        }
        ccf--;
        break;
      case 'Z':
        if (str[cc] != ' ') {
          if (FXSYS_isDecimalDigit(str[cc])) {
            wsValue = str[cc] + wsValue;
            cc--;
          }
        } else {
          cc--;
        }
        ccf--;
        break;
      case 'S':
        if (str[cc] == '+' || str[cc] == ' ') {
          cc--;
        } else {
          cc -= iMinusLen - 1;
          if (cc < 0 || FXSYS_wcsncmp(str + cc, wsMinus.c_str(), iMinusLen)) {
            return false;
          }
          cc--;
          bNeg = true;
        }
        ccf--;
        break;
      case 's':
        if (str[cc] == '+') {
          cc--;
        } else {
          cc -= iMinusLen - 1;
          if (cc < 0 || FXSYS_wcsncmp(str + cc, wsMinus.c_str(), iMinusLen)) {
            return false;
          }
          cc--;
          bNeg = true;
        }
        ccf--;
        break;
      case 'E': {
        if (cc >= dot_index) {
          return false;
        }
        bool bExpSign = false;
        while (cc >= 0) {
          if (str[cc] == 'E' || str[cc] == 'e') {
            break;
          }
          if (FXSYS_isDecimalDigit(str[cc])) {
            iExponent = iExponent + (str[cc] - '0') * 10;
            cc--;
            continue;
          } else if (str[cc] == '+') {
            cc--;
            continue;
          } else if (cc - iMinusLen + 1 > 0 &&
                     !FXSYS_wcsncmp(str + (cc - iMinusLen + 1), wsMinus.c_str(),
                                    iMinusLen)) {
            bExpSign = true;
            cc -= iMinusLen;
          } else {
            return false;
          }
        }
        cc--;
        iExponent = bExpSign ? -iExponent : iExponent;
        ccf--;
      } break;
      case '$': {
        CFX_WideString wsSymbol;
        pLocale->GetNumbericSymbol(FX_LOCALENUMSYMBOL_CurrencySymbol, wsSymbol);
        int32_t iSymbolLen = wsSymbol.GetLength();
        cc -= iSymbolLen - 1;
        if (cc < 0 || FXSYS_wcsncmp(str + cc, wsSymbol.c_str(), iSymbolLen)) {
          return false;
        }
        cc--;
        ccf--;
      } break;
      case 'r':
        if (ccf - 1 >= 0 && strf[ccf - 1] == 'c') {
          if (str[cc] == 'R' && cc - 1 >= 0 && str[cc - 1] == 'C') {
            bNeg = true;
            cc -= 2;
          }
          ccf -= 2;
        } else {
          ccf--;
        }
        break;
      case 'R':
        if (ccf - 1 >= 0 && strf[ccf - 1] == 'C') {
          if (str[cc] == ' ') {
            cc++;
          } else if (str[cc] == 'R' && cc - 1 >= 0 && str[cc - 1] == 'C') {
            bNeg = true;
            cc -= 2;
          }
          ccf -= 2;
        } else {
          ccf--;
        }
        break;
      case 'b':
        if (ccf - 1 >= 0 && strf[ccf - 1] == 'd') {
          if (str[cc] == 'B' && cc - 1 >= 0 && str[cc - 1] == 'D') {
            bNeg = true;
            cc -= 2;
          }
          ccf -= 2;
        } else {
          ccf--;
        }
        break;
      case 'B':
        if (ccf - 1 >= 0 && strf[ccf - 1] == 'D') {
          if (str[cc] == ' ') {
            cc++;
          } else if (str[cc] == 'B' && cc - 1 >= 0 && str[cc - 1] == 'D') {
            bNeg = true;
            cc -= 2;
          }
          ccf -= 2;
        } else {
          ccf--;
        }
        break;
      case '.':
      case 'V':
      case 'v':
        return false;
      case '%': {
        CFX_WideString wsSymbol;
        pLocale->GetNumbericSymbol(FX_LOCALENUMSYMBOL_Percent, wsSymbol);
        int32_t iSysmbolLen = wsSymbol.GetLength();
        cc -= iSysmbolLen - 1;
        if (cc < 0 || FXSYS_wcsncmp(str + cc, wsSymbol.c_str(), iSysmbolLen)) {
          return false;
        }
        cc--;
        ccf--;
        bHavePercentSymbol = true;
      } break;
      case '8':
        return false;
      case ',': {
        if (cc >= 0) {
          cc -= iGroupLen - 1;
          if (cc >= 0 &&
              FXSYS_wcsncmp(str + cc, wsGroupSymbol.c_str(), iGroupLen) == 0) {
            cc--;
          } else {
            cc += iGroupLen - 1;
          }
        }
        ccf--;
      } break;
      case '(':
        if (str[cc] == L'(') {
          bNeg = true;
        } else if (str[cc] != L' ') {
          return false;
        }
        cc--;
        ccf--;
        break;
      case ')':
        if (str[cc] == L')') {
          bNeg = true;
        } else if (str[cc] != L' ') {
          return false;
        }
        cc--;
        ccf--;
        break;
      default:
        if (strf[ccf] != str[cc]) {
          return false;
        }
        cc--;
        ccf--;
    }
  }
  if (cc >= 0) {
    if (str[cc] == '-') {
      bNeg = true;
      cc--;
    }
    if (cc >= 0) {
      return false;
    }
  }
  if (dot_index < len && (dwFormatStyle & FX_NUMSTYLE_DotVorv)) {
    wsValue += '.';
  }
  if (!bReverseParse) {
    ccf = dot_index_f + 1;
    cc = (dot_index == len) ? len : dot_index + 1;
    while (cc < len && ccf < lenf) {
      switch (strf[ccf]) {
        case '\'': {
          CFX_WideString wsLiteral = FX_GetLiteralText(strf, ccf, lenf);
          int32_t iLiteralLen = wsLiteral.GetLength();
          if (cc + iLiteralLen > len ||
              FXSYS_wcsncmp(str + cc, wsLiteral.c_str(), iLiteralLen)) {
            return false;
          }
          cc += iLiteralLen;
          ccf++;
          break;
        }
        case '9':
          if (!FXSYS_isDecimalDigit(str[cc])) {
            return false;
          }
          { wsValue += str[cc]; }
          cc++;
          ccf++;
          break;
        case 'z':
          if (FXSYS_isDecimalDigit(str[cc])) {
            wsValue += str[cc];
            cc++;
          }
          ccf++;
          break;
        case 'Z':
          if (str[cc] != ' ') {
            if (FXSYS_isDecimalDigit(str[cc])) {
              wsValue += str[cc];
              cc++;
            }
          } else {
            cc++;
          }
          ccf++;
          break;
        case 'S':
          if (str[cc] == '+' || str[cc] == ' ') {
            cc++;
          } else {
            if (cc + iMinusLen > len ||
                FXSYS_wcsncmp(str + cc, wsMinus.c_str(), iMinusLen)) {
              return false;
            }
            bNeg = true;
            cc += iMinusLen;
          }
          ccf++;
          break;
        case 's':
          if (str[cc] == '+') {
            cc++;
          } else {
            if (cc + iMinusLen > len ||
                FXSYS_wcsncmp(str + cc, wsMinus.c_str(), iMinusLen)) {
              return false;
            }
            bNeg = true;
            cc += iMinusLen;
          }
          ccf++;
          break;
        case 'E': {
          if (cc >= len || (str[cc] != 'E' && str[cc] != 'e')) {
            return false;
          }
          bool bExpSign = false;
          cc++;
          if (cc < len) {
            if (str[cc] == '+') {
              cc++;
            } else if (str[cc] == '-') {
              bExpSign = true;
              cc++;
            }
          }
          while (cc < len) {
            if (!FXSYS_isDecimalDigit(str[cc])) {
              break;
            }
            iExponent = iExponent * 10 + str[cc] - '0';
            cc++;
          }
          iExponent = bExpSign ? -iExponent : iExponent;
          ccf++;
        } break;
        case '$': {
          CFX_WideString wsSymbol;
          pLocale->GetNumbericSymbol(FX_LOCALENUMSYMBOL_CurrencySymbol,
                                     wsSymbol);
          int32_t iSymbolLen = wsSymbol.GetLength();
          if (cc + iSymbolLen > len ||
              FXSYS_wcsncmp(str + cc, wsSymbol.c_str(), iSymbolLen)) {
            return false;
          }
          cc += iSymbolLen;
          ccf++;
        } break;
        case 'c':
          if (ccf + 1 < lenf && strf[ccf + 1] == 'r') {
            if (str[cc] == 'C' && cc + 1 < len && str[cc + 1] == 'R') {
              bNeg = true;
              cc += 2;
            }
            ccf += 2;
          }
          break;
        case 'C':
          if (ccf + 1 < lenf && strf[ccf + 1] == 'R') {
            if (str[cc] == ' ') {
              cc++;
            } else if (str[cc] == 'C' && cc + 1 < len && str[cc + 1] == 'R') {
              bNeg = true;
              cc += 2;
            }
            ccf += 2;
          }
          break;
        case 'd':
          if (ccf + 1 < lenf && strf[ccf + 1] == 'b') {
            if (str[cc] == 'D' && cc + 1 < len && str[cc + 1] == 'B') {
              bNeg = true;
              cc += 2;
            }
            ccf += 2;
          }
          break;
        case 'D':
          if (ccf + 1 < lenf && strf[ccf + 1] == 'B') {
            if (str[cc] == ' ') {
              cc++;
            } else if (str[cc] == 'D' && cc + 1 < len && str[cc + 1] == 'B') {
              bNeg = true;
              cc += 2;
            }
            ccf += 2;
          }
          break;
        case '.':
        case 'V':
        case 'v':
          return false;
        case '%': {
          CFX_WideString wsSymbol;
          pLocale->GetNumbericSymbol(FX_LOCALENUMSYMBOL_Percent, wsSymbol);
          int32_t iSysmbolLen = wsSymbol.GetLength();
          if (cc + iSysmbolLen <= len &&
              !FXSYS_wcsncmp(str + cc, wsSymbol.c_str(), iSysmbolLen)) {
            cc += iSysmbolLen;
          }
          ccf++;
          bHavePercentSymbol = true;
        } break;
        case '8': {
          while (ccf < lenf && strf[ccf] == '8') {
            ccf++;
          }
          while (cc < len && FXSYS_isDecimalDigit(str[cc])) {
            wsValue += str[cc];
            cc++;
          }
        } break;
        case ',': {
          if (cc + iGroupLen <= len &&
              FXSYS_wcsncmp(str + cc, wsGroupSymbol.c_str(), iGroupLen) == 0) {
            cc += iGroupLen;
          }
          ccf++;
        } break;
        case '(':
          if (str[cc] == L'(') {
            bNeg = true;
          } else if (str[cc] != L' ') {
            return false;
          }
          cc++;
          ccf++;
          break;
        case ')':
          if (str[cc] == L')') {
            bNeg = true;
          } else if (str[cc] != L' ') {
            return false;
          }
          cc++;
          ccf++;
          break;
        default:
          if (strf[ccf] != str[cc]) {
            return false;
          }
          cc++;
          ccf++;
      }
    }
    if (cc != len) {
      return false;
    }
  }
  if (iExponent || bHavePercentSymbol) {
    CFX_Decimal decimal = CFX_Decimal(wsValue.AsStringC());
    if (iExponent) {
      decimal = decimal * CFX_Decimal(FXSYS_pow(10, (FX_FLOAT)iExponent));
    }
    if (bHavePercentSymbol) {
      decimal = decimal / CFX_Decimal(100);
    }
    wsValue = decimal;
  }
  if (bNeg) {
    wsValue = L'-' + wsValue;
  }
  return true;
}
FX_DATETIMETYPE CFX_FormatString::GetDateTimeFormat(
    const CFX_WideString& wsPattern,
    IFX_Locale*& pLocale,
    CFX_WideString& wsDatePattern,
    CFX_WideString& wsTimePattern) {
  pLocale = nullptr;
  CFX_WideString wsTempPattern;
  FX_LOCALECATEGORY eCategory = FX_LOCALECATEGORY_Unknown;
  int32_t ccf = 0;
  int32_t iLenf = wsPattern.GetLength();
  const FX_WCHAR* pStr = wsPattern.c_str();
  int32_t iFindCategory = 0;
  bool bBraceOpen = false;
  CFX_WideStringC wsConstChars(gs_wsConstChars);
  while (ccf < iLenf) {
    if (pStr[ccf] == '\'') {
      int32_t iCurChar = ccf;
      FX_GetLiteralText(pStr, ccf, iLenf);
      wsTempPattern += CFX_WideStringC(pStr + iCurChar, ccf - iCurChar + 1);
    } else if (!bBraceOpen && iFindCategory != 3 &&
               wsConstChars.Find(pStr[ccf]) == -1) {
      CFX_WideString wsCategory(pStr[ccf]);
      ccf++;
      while (ccf < iLenf && pStr[ccf] != '{' && pStr[ccf] != '.' &&
             pStr[ccf] != '(') {
        if (pStr[ccf] == 'T') {
          wsDatePattern = wsPattern.Left(ccf);
          wsTimePattern = wsPattern.Right(wsPattern.GetLength() - ccf);
          wsTimePattern.SetAt(0, ' ');
          if (!pLocale) {
            pLocale = m_pLocaleMgr->GetDefLocale();
          }
          return FX_DATETIMETYPE_DateTime;
        }
        wsCategory += pStr[ccf];
        ccf++;
      }
      if (!(iFindCategory & 1) && wsCategory == FX_WSTRC(L"date")) {
        iFindCategory |= 1;
        eCategory = FX_LOCALECATEGORY_Date;
        if (iFindCategory & 2) {
          iFindCategory = 4;
        }
      } else if (!(iFindCategory & 2) && wsCategory == FX_WSTRC(L"time")) {
        iFindCategory |= 2;
        eCategory = FX_LOCALECATEGORY_Time;
      } else if (wsCategory == FX_WSTRC(L"datetime")) {
        iFindCategory = 3;
        eCategory = FX_LOCALECATEGORY_DateTime;
      } else {
        continue;
      }
      while (ccf < iLenf) {
        if (pStr[ccf] == '(') {
          ccf++;
          CFX_WideString wsLCID;
          while (ccf < iLenf && pStr[ccf] != ')') {
            wsLCID += pStr[ccf++];
          }
          pLocale = GetPatternLocale(wsLCID);
        } else if (pStr[ccf] == '{') {
          bBraceOpen = true;
          break;
        } else if (pStr[ccf] == '.') {
          CFX_WideString wsSubCategory;
          ccf++;
          while (ccf < iLenf && pStr[ccf] != '(' && pStr[ccf] != '{') {
            wsSubCategory += pStr[ccf++];
          }
          uint32_t dwSubHash =
              FX_HashCode_GetW(wsSubCategory.AsStringC(), false);
          FX_LOCALEDATETIMESUBCATEGORY eSubCategory =
              FX_LOCALEDATETIMESUBCATEGORY_Medium;
          for (int32_t i = 0; i < g_iFXLocaleDateTimeSubCatCount; i++) {
            if (g_FXLocaleDateTimeSubCatData[i].uHash == dwSubHash) {
              eSubCategory =
                  (FX_LOCALEDATETIMESUBCATEGORY)g_FXLocaleDateTimeSubCatData[i]
                      .eSubCategory;
              break;
            }
          }
          if (!pLocale) {
            pLocale = m_pLocaleMgr->GetDefLocale();
          }
          ASSERT(pLocale);
          switch (eCategory) {
            case FX_LOCALECATEGORY_Date:
              pLocale->GetDatePattern(eSubCategory, wsDatePattern);
              wsDatePattern = wsTempPattern + wsDatePattern;
              break;
            case FX_LOCALECATEGORY_Time:
              pLocale->GetTimePattern(eSubCategory, wsTimePattern);
              wsTimePattern = wsTempPattern + wsTimePattern;
              break;
            case FX_LOCALECATEGORY_DateTime:
              pLocale->GetDatePattern(eSubCategory, wsDatePattern);
              wsDatePattern = wsTempPattern + wsDatePattern;
              pLocale->GetTimePattern(eSubCategory, wsTimePattern);
              break;
            default:
              break;
          }
          wsTempPattern.clear();
          continue;
        }
        ccf++;
      }
    } else if (pStr[ccf] == '}') {
      bBraceOpen = false;
      if (!wsTempPattern.IsEmpty()) {
        if (eCategory == FX_LOCALECATEGORY_Time) {
          wsTimePattern = wsTempPattern;
        } else if (eCategory == FX_LOCALECATEGORY_Date) {
          wsDatePattern = wsTempPattern;
        }
        wsTempPattern.clear();
      }
    } else {
      wsTempPattern += pStr[ccf];
    }
    ccf++;
  }
  if (!wsTempPattern.IsEmpty()) {
    if (eCategory == FX_LOCALECATEGORY_Date) {
      wsDatePattern += wsTempPattern;
    } else {
      wsTimePattern += wsTempPattern;
    }
  }
  if (!pLocale) {
    pLocale = m_pLocaleMgr->GetDefLocale();
  }
  if (!iFindCategory) {
    wsTimePattern.clear();
    wsDatePattern = wsPattern;
  }
  return (FX_DATETIMETYPE)iFindCategory;
}
static bool FX_ParseLocaleDate(const CFX_WideString& wsDate,
                               const CFX_WideString& wsDatePattern,
                               IFX_Locale* pLocale,
                               CFX_Unitime& datetime,
                               int32_t& cc) {
  int32_t year = 1900;
  int32_t month = 1;
  int32_t day = 1;
  int32_t ccf = 0;
  const FX_WCHAR* str = wsDate.c_str();
  int32_t len = wsDate.GetLength();
  const FX_WCHAR* strf = wsDatePattern.c_str();
  int32_t lenf = wsDatePattern.GetLength();
  CFX_WideStringC wsDateSymbols(gs_wsDateSymbols);
  while (cc < len && ccf < lenf) {
    if (strf[ccf] == '\'') {
      CFX_WideString wsLiteral = FX_GetLiteralText(strf, ccf, lenf);
      int32_t iLiteralLen = wsLiteral.GetLength();
      if (cc + iLiteralLen > len ||
          FXSYS_wcsncmp(str + cc, wsLiteral.c_str(), iLiteralLen)) {
        return false;
      }
      cc += iLiteralLen;
      ccf++;
      continue;
    } else if (wsDateSymbols.Find(strf[ccf]) == -1) {
      if (strf[ccf] != str[cc])
        return false;
      cc++;
      ccf++;
      continue;
    }
    uint32_t dwSymbolNum = 1;
    FX_WCHAR dwCharSymbol = strf[ccf++];
    while (ccf < lenf && strf[ccf] == dwCharSymbol) {
      ccf++;
      dwSymbolNum++;
    }
    uint32_t dwSymbol = (dwCharSymbol << 8) | (dwSymbolNum + '0');
    if (dwSymbol == FXBSTR_ID(0, 0, 'D', '1')) {
      if (!FXSYS_isDecimalDigit(str[cc])) {
        return false;
      }
      day = str[cc++] - '0';
      if (cc < len && FXSYS_isDecimalDigit(str[cc])) {
        day = day * 10 + str[cc++] - '0';
      }
    } else if (dwSymbol == FXBSTR_ID(0, 0, 'D', '2')) {
      if (!FXSYS_isDecimalDigit(str[cc])) {
        return false;
      }
      day = str[cc++] - '0';
      if (cc < len) {
        day = day * 10 + str[cc++] - '0';
      }
    } else if (dwSymbol == FXBSTR_ID(0, 0, 'J', '1')) {
      int i = 0;
      while (cc < len && i < 3 && FXSYS_isDecimalDigit(str[cc])) {
        cc++;
        i++;
      }
    } else if (dwSymbol == FXBSTR_ID(0, 0, 'J', '3')) {
      cc += 3;
    } else if (dwSymbol == FXBSTR_ID(0, 0, 'M', '1')) {
      if (!FXSYS_isDecimalDigit(str[cc])) {
        return false;
      }
      month = str[cc++] - '0';
      if (cc < len && FXSYS_isDecimalDigit(str[cc])) {
        month = month * 10 + str[cc++] - '0';
      }
    } else if (dwSymbol == FXBSTR_ID(0, 0, 'M', '2')) {
      if (!FXSYS_isDecimalDigit(str[cc])) {
        return false;
      }
      month = str[cc++] - '0';
      if (cc < len) {
        month = month * 10 + str[cc++] - '0';
      }
    } else if (dwSymbol == FXBSTR_ID(0, 0, 'M', '3')) {
      CFX_WideString wsMonthNameAbbr;
      uint16_t i = 0;
      for (; i < 12; i++) {
        pLocale->GetMonthName(i, wsMonthNameAbbr, true);
        if (wsMonthNameAbbr.IsEmpty()) {
          continue;
        }
        if (!FXSYS_wcsncmp(wsMonthNameAbbr.c_str(), str + cc,
                           wsMonthNameAbbr.GetLength())) {
          break;
        }
      }
      if (i < 12) {
        cc += wsMonthNameAbbr.GetLength();
        month = i + 1;
      }
    } else if (dwSymbol == FXBSTR_ID(0, 0, 'M', '4')) {
      CFX_WideString wsMonthName;
      uint16_t i = 0;
      for (; i < 12; i++) {
        pLocale->GetMonthName(i, wsMonthName, false);
        if (wsMonthName.IsEmpty()) {
          continue;
        }
        if (!FXSYS_wcsncmp(wsMonthName.c_str(), str + cc,
                           wsMonthName.GetLength())) {
          break;
        }
      }
      if (i < 12) {
        cc += wsMonthName.GetLength();
        month = i + 1;
      }
    } else if (dwSymbol == FXBSTR_ID(0, 0, 'E', '1')) {
      cc += 1;
    } else if (dwSymbol == FXBSTR_ID(0, 0, 'E', '3')) {
      CFX_WideString wsDayNameAbbr;
      uint16_t i = 0;
      for (; i < 7; i++) {
        pLocale->GetDayName(i, wsDayNameAbbr, true);
        if (wsDayNameAbbr.IsEmpty()) {
          continue;
        }
        if (!FXSYS_wcsncmp(wsDayNameAbbr.c_str(), str + cc,
                           wsDayNameAbbr.GetLength())) {
          break;
        }
      }
      if (i < 12) {
        cc += wsDayNameAbbr.GetLength();
      }
    } else if (dwSymbol == FXBSTR_ID(0, 0, 'E', '4')) {
      CFX_WideString wsDayName;
      int32_t i = 0;
      for (; i < 7; i++) {
        pLocale->GetDayName(i, wsDayName, false);
        if (wsDayName == L"") {
          continue;
        }
        if (!FXSYS_wcsncmp(wsDayName.c_str(), str + cc,
                           wsDayName.GetLength())) {
          break;
        }
      }
      if (i < 12) {
        cc += wsDayName.GetLength();
      }
    } else if (dwSymbol == FXBSTR_ID(0, 0, 'e', '1')) {
      cc += 1;
    } else if (dwSymbol == FXBSTR_ID(0, 0, 'G', '1')) {
      cc += 2;
    } else if (dwSymbol == FXBSTR_ID(0, 0, 'Y', '2')) {
      if (cc + 2 > len) {
        return false;
      }
      if (!FXSYS_isDecimalDigit(str[cc])) {
        return false;
      }
      year = str[cc++] - '0';
      if (cc >= len || !FXSYS_isDecimalDigit(str[cc])) {
        return false;
      }
      year = year * 10 + str[cc++] - '0';
      if (year <= 29) {
        year += 2000;
      } else {
        year += 1900;
      }
    } else if (dwSymbol == FXBSTR_ID(0, 0, 'Y', '4')) {
      int i = 0;
      year = 0;
      if (cc + 4 > len) {
        return false;
      }
      while (i < 4) {
        if (!FXSYS_isDecimalDigit(str[cc])) {
          return false;
        }
        year = year * 10 + str[cc] - '0';
        cc++;
        i++;
      }
    } else if (dwSymbol == FXBSTR_ID(0, 0, 'w', '1')) {
      cc += 1;
    } else if (dwSymbol == FXBSTR_ID(0, 0, 'W', '2')) {
      cc += 2;
    }
  }
  if (cc < len) {
    return false;
  }
  CFX_Unitime ut;
  ut.Set(year, month, day);
  datetime = datetime + ut;
  return !!cc;
}

static void FX_ResolveZone(uint8_t& wHour,
                           uint8_t& wMinute,
                           FX_TIMEZONE tzDiff,
                           IFX_Locale* pLocale) {
  int32_t iMinuteDiff = wHour * 60 + wMinute;
  FX_TIMEZONE tzLocale;
  pLocale->GetTimeZone(tzLocale);
  iMinuteDiff += tzLocale.tzHour * 60 +
                 (tzLocale.tzHour < 0 ? -tzLocale.tzMinute : tzLocale.tzMinute);
  iMinuteDiff -= tzDiff.tzHour * 60 +
                 (tzDiff.tzHour < 0 ? -tzDiff.tzMinute : tzDiff.tzMinute);
  while (iMinuteDiff > 1440) {
    iMinuteDiff -= 1440;
  }
  while (iMinuteDiff < 0) {
    iMinuteDiff += 1440;
  }
  wHour = iMinuteDiff / 60;
  wMinute = iMinuteDiff % 60;
}
static bool FX_ParseLocaleTime(const CFX_WideString& wsTime,
                               const CFX_WideString& wsTimePattern,
                               IFX_Locale* pLocale,
                               CFX_Unitime& datetime,
                               int32_t& cc) {
  uint8_t hour = 0;
  uint8_t minute = 0;
  uint8_t second = 0;
  uint16_t millisecond = 0;
  int32_t ccf = 0;
  const FX_WCHAR* str = wsTime.c_str();
  int len = wsTime.GetLength();
  const FX_WCHAR* strf = wsTimePattern.c_str();
  int lenf = wsTimePattern.GetLength();
  bool bHasA = false;
  bool bPM = false;
  CFX_WideStringC wsTimeSymbols(gs_wsTimeSymbols);
  while (cc < len && ccf < lenf) {
    if (strf[ccf] == '\'') {
      CFX_WideString wsLiteral = FX_GetLiteralText(strf, ccf, lenf);
      int32_t iLiteralLen = wsLiteral.GetLength();
      if (cc + iLiteralLen > len ||
          FXSYS_wcsncmp(str + cc, wsLiteral.c_str(), iLiteralLen)) {
        return false;
      }
      cc += iLiteralLen;
      ccf++;
      continue;
    } else if (wsTimeSymbols.Find(strf[ccf]) == -1) {
      if (strf[ccf] != str[cc])
        return false;
      cc++;
      ccf++;
      continue;
    }
    uint32_t dwSymbolNum = 1;
    FX_WCHAR dwCharSymbol = strf[ccf++];
    while (ccf < lenf && strf[ccf] == dwCharSymbol) {
      ccf++;
      dwSymbolNum++;
    }
    uint32_t dwSymbol = (dwCharSymbol << 8) | (dwSymbolNum + '0');
    if (dwSymbol == FXBSTR_ID(0, 0, 'k', '1') ||
        dwSymbol == FXBSTR_ID(0, 0, 'H', '1') ||
        dwSymbol == FXBSTR_ID(0, 0, 'h', '1') ||
        dwSymbol == FXBSTR_ID(0, 0, 'K', '1')) {
      if (!FXSYS_isDecimalDigit(str[cc])) {
        return false;
      }
      hour = str[cc++] - '0';
      if (cc < len && FXSYS_isDecimalDigit(str[cc])) {
        hour = hour * 10 + str[cc++] - '0';
      }
      if (dwSymbol == FXBSTR_ID(0, 0, 'K', '1') && hour == 24) {
        hour = 0;
      }
    } else if (dwSymbol == FXBSTR_ID(0, 0, 'k', '2') ||
               dwSymbol == FXBSTR_ID(0, 0, 'H', '2') ||
               dwSymbol == FXBSTR_ID(0, 0, 'h', '2') ||
               dwSymbol == FXBSTR_ID(0, 0, 'K', '2')) {
      if (!FXSYS_isDecimalDigit(str[cc])) {
        return false;
      }
      hour = str[cc++] - '0';
      if (cc >= len) {
        return false;
      }
      if (!FXSYS_isDecimalDigit(str[cc])) {
        return false;
      }
      hour = hour * 10 + str[cc++] - '0';
      if (dwSymbol == FXBSTR_ID(0, 0, 'K', '2') && hour == 24) {
        hour = 0;
      }
    } else if (dwSymbol == FXBSTR_ID(0, 0, 'M', '1')) {
      if (!FXSYS_isDecimalDigit(str[cc])) {
        return false;
      }
      minute = str[cc++] - '0';
      if (cc < len && FXSYS_isDecimalDigit(str[cc])) {
        minute = minute * 10 + str[cc++] - '0';
      }
    } else if (dwSymbol == FXBSTR_ID(0, 0, 'M', '2')) {
      if (!FXSYS_isDecimalDigit(str[cc])) {
        return false;
      }
      minute = str[cc++] - '0';
      if (cc >= len) {
        return false;
      }
      if (!FXSYS_isDecimalDigit(str[cc])) {
        return false;
      }
      minute = minute * 10 + str[cc++] - '0';
    } else if (dwSymbol == FXBSTR_ID(0, 0, 'S', '1')) {
      if (!FXSYS_isDecimalDigit(str[cc])) {
        return false;
      }
      second = str[cc++] - '0';
      if (cc < len && FXSYS_isDecimalDigit(str[cc])) {
        second = second * 10 + str[cc++] - '0';
      }
    } else if (dwSymbol == FXBSTR_ID(0, 0, 'S', '2')) {
      if (!FXSYS_isDecimalDigit(str[cc])) {
        return false;
      }
      second = str[cc++] - '0';
      if (cc >= len) {
        return false;
      }
      if (!FXSYS_isDecimalDigit(str[cc])) {
        return false;
      }
      second = second * 10 + str[cc++] - '0';
    } else if (dwSymbol == FXBSTR_ID(0, 0, 'F', '3')) {
      if (cc + 3 >= len) {
        return false;
      }
      int i = 0;
      while (i < 3) {
        if (!FXSYS_isDecimalDigit(str[cc])) {
          return false;
        }
        millisecond = millisecond * 10 + str[cc++] - '0';
        i++;
      }
    } else if (dwSymbol == FXBSTR_ID(0, 0, 'A', '1')) {
      CFX_WideString wsAM;
      pLocale->GetMeridiemName(wsAM, true);
      CFX_WideString wsPM;
      pLocale->GetMeridiemName(wsPM, false);
      if ((cc + wsAM.GetLength() <= len) &&
          (CFX_WideStringC(str + cc, wsAM.GetLength()) == wsAM)) {
        cc += wsAM.GetLength();
        bHasA = true;
      } else if ((cc + wsPM.GetLength() <= len) &&
                 (CFX_WideStringC(str + cc, wsPM.GetLength()) == wsPM)) {
        cc += wsPM.GetLength();
        bHasA = true;
        bPM = true;
      }
    } else if (dwSymbol == FXBSTR_ID(0, 0, 'Z', '1')) {
      if (cc + 3 > len) {
        continue;
      }
      uint32_t dwHash = str[cc++];
      dwHash = (dwHash << 8) | str[cc++];
      dwHash = (dwHash << 8) | str[cc++];
      if (dwHash == FXBSTR_ID(0, 'G', 'M', 'T')) {
        FX_TIMEZONE tzDiff;
        tzDiff.tzHour = 0;
        tzDiff.tzMinute = 0;
        if (cc < len && (str[cc] == '-' || str[cc] == '+')) {
          cc += FX_ParseTimeZone(str + cc, len - cc, tzDiff);
        }
        FX_ResolveZone(hour, minute, tzDiff, pLocale);
      } else {
        const FX_LOCALETIMEZONEINFO* pEnd =
            g_FXLocaleTimeZoneData + FX_ArraySize(g_FXLocaleTimeZoneData);
        const FX_LOCALETIMEZONEINFO* pTimeZoneInfo =
            std::lower_bound(g_FXLocaleTimeZoneData, pEnd, dwHash,
                             [](const FX_LOCALETIMEZONEINFO& info,
                                uint32_t hash) { return info.uHash < hash; });
        if (pTimeZoneInfo < pEnd && dwHash == pTimeZoneInfo->uHash) {
          hour += pTimeZoneInfo->iHour;
          minute += pTimeZoneInfo->iHour > 0 ? pTimeZoneInfo->iMinute
                                             : -pTimeZoneInfo->iMinute;
        }
      }
    } else if (dwSymbol == FXBSTR_ID(0, 0, 'z', '1')) {
      if (str[cc] != 'Z') {
        FX_TIMEZONE tzDiff;
        cc += FX_ParseTimeZone(str + cc, len - cc, tzDiff);
        FX_ResolveZone(hour, minute, tzDiff, pLocale);
      } else {
        cc++;
      }
    }
  }
  if (bHasA) {
    if (bPM) {
      hour += 12;
      if (hour == 24) {
        hour = 12;
      }
    } else {
      if (hour == 12) {
        hour = 0;
      }
    }
  }
  CFX_Unitime ut;
  ut.Set(0, 0, 0, hour, minute, second, millisecond);
  datetime = datetime + ut;
  return !!cc;
}

bool CFX_FormatString::ParseDateTime(const CFX_WideString& wsSrcDateTime,
                                     const CFX_WideString& wsPattern,
                                     FX_DATETIMETYPE eDateTimeType,
                                     CFX_Unitime& dtValue) {
  dtValue.Set(0);
  if (wsSrcDateTime.IsEmpty() || wsPattern.IsEmpty()) {
    return false;
  }
  CFX_WideString wsDatePattern, wsTimePattern;
  IFX_Locale* pLocale = nullptr;
  FX_DATETIMETYPE eCategory =
      GetDateTimeFormat(wsPattern, pLocale, wsDatePattern, wsTimePattern);
  if (!pLocale) {
    return false;
  }
  if (eCategory == FX_DATETIMETYPE_Unknown) {
    eCategory = eDateTimeType;
  }
  if (eCategory == FX_DATETIMETYPE_Unknown) {
    return false;
  }
  if (eCategory == FX_DATETIMETYPE_TimeDate) {
    int32_t iStart = 0;
    if (!FX_ParseLocaleTime(wsSrcDateTime, wsTimePattern, pLocale, dtValue,
                            iStart)) {
      return false;
    }
    if (!FX_ParseLocaleDate(wsSrcDateTime, wsDatePattern, pLocale, dtValue,
                            iStart)) {
      return false;
    }
  } else {
    int32_t iStart = 0;
    if ((eCategory & FX_DATETIMETYPE_Date) &&
        !FX_ParseLocaleDate(wsSrcDateTime, wsDatePattern, pLocale, dtValue,
                            iStart)) {
      return false;
    }
    if ((eCategory & FX_DATETIMETYPE_Time) &&
        !FX_ParseLocaleTime(wsSrcDateTime, wsTimePattern, pLocale, dtValue,
                            iStart)) {
      return false;
    }
  }
  return true;
}
bool CFX_FormatString::ParseZero(const CFX_WideString& wsSrcText,
                                 const CFX_WideString& wsPattern) {
  CFX_WideString wsTextFormat;
  GetTextFormat(wsPattern, FX_WSTRC(L"zero"), wsTextFormat);
  int32_t iText = 0, iPattern = 0;
  const FX_WCHAR* pStrText = wsSrcText.c_str();
  int32_t iLenText = wsSrcText.GetLength();
  const FX_WCHAR* pStrPattern = wsTextFormat.c_str();
  int32_t iLenPattern = wsTextFormat.GetLength();
  while (iPattern < iLenPattern && iText < iLenText) {
    if (pStrPattern[iPattern] == '\'') {
      CFX_WideString wsLiteral =
          FX_GetLiteralText(pStrPattern, iPattern, iLenPattern);
      int32_t iLiteralLen = wsLiteral.GetLength();
      if (iText + iLiteralLen > iLenText ||
          FXSYS_wcsncmp(pStrText + iText, wsLiteral.c_str(), iLiteralLen)) {
        return false;
      }
      iText += iLiteralLen;
      iPattern++;
      continue;
    } else if (pStrPattern[iPattern] != pStrText[iText]) {
      return false;
    } else {
      iText++;
      iPattern++;
    }
  }
  return iPattern == iLenPattern && iText == iLenText;
}
bool CFX_FormatString::ParseNull(const CFX_WideString& wsSrcText,
                                 const CFX_WideString& wsPattern) {
  CFX_WideString wsTextFormat;
  GetTextFormat(wsPattern, FX_WSTRC(L"null"), wsTextFormat);
  int32_t iText = 0, iPattern = 0;
  const FX_WCHAR* pStrText = wsSrcText.c_str();
  int32_t iLenText = wsSrcText.GetLength();
  const FX_WCHAR* pStrPattern = wsTextFormat.c_str();
  int32_t iLenPattern = wsTextFormat.GetLength();
  while (iPattern < iLenPattern && iText < iLenText) {
    if (pStrPattern[iPattern] == '\'') {
      CFX_WideString wsLiteral =
          FX_GetLiteralText(pStrPattern, iPattern, iLenPattern);
      int32_t iLiteralLen = wsLiteral.GetLength();
      if (iText + iLiteralLen > iLenText ||
          FXSYS_wcsncmp(pStrText + iText, wsLiteral.c_str(), iLiteralLen)) {
        return false;
      }
      iText += iLiteralLen;
      iPattern++;
      continue;
    } else if (pStrPattern[iPattern] != pStrText[iText]) {
      return false;
    } else {
      iText++;
      iPattern++;
    }
  }
  return iPattern == iLenPattern && iText == iLenText;
}
bool CFX_FormatString::FormatText(const CFX_WideString& wsSrcText,
                                  const CFX_WideString& wsPattern,
                                  CFX_WideString& wsOutput) {
  if (wsPattern.IsEmpty()) {
    return false;
  }
  int32_t iLenText = wsSrcText.GetLength();
  if (iLenText == 0) {
    return false;
  }
  CFX_WideString wsTextFormat;
  GetTextFormat(wsPattern, FX_WSTRC(L"text"), wsTextFormat);
  int32_t iText = 0, iPattern = 0;
  const FX_WCHAR* pStrText = wsSrcText.c_str();
  const FX_WCHAR* pStrPattern = wsTextFormat.c_str();
  int32_t iLenPattern = wsTextFormat.GetLength();
  while (iPattern < iLenPattern) {
    switch (pStrPattern[iPattern]) {
      case '\'': {
        wsOutput += FX_GetLiteralText(pStrPattern, iPattern, iLenPattern);
        iPattern++;
        break;
      }
      case 'A':
        if (iText >= iLenText || !FXSYS_iswalpha(pStrText[iText])) {
          return false;
        }
        wsOutput += pStrText[iText++];
        iPattern++;
        break;
      case 'X':
        if (iText >= iLenText) {
          return false;
        }
        wsOutput += pStrText[iText++];
        iPattern++;
        break;
      case 'O':
      case '0':
        if (iText >= iLenText || (!FXSYS_isDecimalDigit(pStrText[iText]) &&
                                  !FXSYS_iswalpha(pStrText[iText]))) {
          return false;
        }
        wsOutput += pStrText[iText++];
        iPattern++;
        break;
      case '9':
        if (iText >= iLenText || !FXSYS_isDecimalDigit(pStrText[iText])) {
          return false;
        }
        wsOutput += pStrText[iText++];
        iPattern++;
        break;
      default:
        wsOutput += pStrPattern[iPattern++];
        break;
    }
  }
  return iText == iLenText;
}
static int32_t FX_GetNumTrailingLimit(const CFX_WideString& wsFormat,
                                      int iDotPos,
                                      bool& bTrimTailZeros) {
  if (iDotPos < 0) {
    return 0;
  }
  int32_t iCount = wsFormat.GetLength();
  int32_t iTreading = 0;
  for (iDotPos++; iDotPos < iCount; iDotPos++) {
    FX_WCHAR wc = wsFormat[iDotPos];
    if (wc == L'z' || wc == L'9' || wc == 'Z') {
      iTreading++;
      bTrimTailZeros = (wc == L'9' ? false : true);
    }
  }
  return iTreading;
}
bool CFX_FormatString::FormatStrNum(const CFX_WideStringC& wsInputNum,
                                    const CFX_WideString& wsPattern,
                                    CFX_WideString& wsOutput) {
  if (wsInputNum.IsEmpty() || wsPattern.IsEmpty()) {
    return false;
  }
  int32_t dot_index_f = -1;
  uint32_t dwNumStyle = 0;
  CFX_WideString wsNumFormat;
  IFX_Locale* pLocale =
      GetNumericFormat(wsPattern, dot_index_f, dwNumStyle, wsNumFormat);
  if (!pLocale || wsNumFormat.IsEmpty()) {
    return false;
  }
  int32_t cc = 0, ccf = 0;
  const FX_WCHAR* strf = wsNumFormat.c_str();
  int lenf = wsNumFormat.GetLength();
  CFX_WideString wsSrcNum(wsInputNum);
  wsSrcNum.TrimLeft('0');
  if (wsSrcNum.IsEmpty() || wsSrcNum[0] == '.') {
    wsSrcNum.Insert(0, '0');
  }
  CFX_Decimal decimal = CFX_Decimal(wsSrcNum.AsStringC());
  if (dwNumStyle & FX_NUMSTYLE_Percent) {
    decimal = decimal * CFX_Decimal(100);
    wsSrcNum = decimal;
  }
  int32_t exponent = 0;
  if (dwNumStyle & FX_NUMSTYLE_Exponent) {
    int fixed_count = 0;
    while (ccf < dot_index_f) {
      switch (strf[ccf]) {
        case '\'':
          FX_GetLiteralText(strf, ccf, dot_index_f);
          break;
        case '9':
        case 'z':
        case 'Z':
          fixed_count++;
          break;
      }
      ccf++;
    }
    int threshold = 1;
    while (fixed_count > 1) {
      threshold *= 10;
      fixed_count--;
    }
    if (decimal != CFX_Decimal(0)) {
      if (decimal < CFX_Decimal(threshold)) {
        decimal = decimal * CFX_Decimal(10);
        exponent = -1;
        while (decimal < CFX_Decimal(threshold)) {
          decimal = decimal * CFX_Decimal(10);
          exponent -= 1;
        }
      } else if (decimal > CFX_Decimal(threshold)) {
        threshold *= 10;
        while (decimal > CFX_Decimal(threshold)) {
          decimal = decimal / CFX_Decimal(10);
          exponent += 1;
        }
      }
    }
  }
  bool bTrimTailZeros = false;
  int32_t iTreading =
      FX_GetNumTrailingLimit(wsNumFormat, dot_index_f, bTrimTailZeros);
  int32_t scale = decimal.GetScale();
  if (iTreading < scale) {
    decimal.SetScale(iTreading);
    wsSrcNum = decimal;
  }
  if (bTrimTailZeros && scale > 0 && iTreading > 0) {
    wsSrcNum.TrimRight(L"0");
    wsSrcNum.TrimRight(L".");
  }
  CFX_WideString wsGroupSymbol;
  pLocale->GetNumbericSymbol(FX_LOCALENUMSYMBOL_Grouping, wsGroupSymbol);
  bool bNeg = false;
  if (wsSrcNum[0] == '-') {
    bNeg = true;
    wsSrcNum.Delete(0, 1);
  }
  bool bAddNeg = false;
  const FX_WCHAR* str = wsSrcNum.c_str();
  int len = wsSrcNum.GetLength();
  int dot_index = wsSrcNum.Find('.');
  if (dot_index == -1) {
    dot_index = len;
  }
  ccf = dot_index_f - 1;
  cc = dot_index - 1;
  while (ccf >= 0) {
    switch (strf[ccf]) {
      case '9':
        if (cc >= 0) {
          if (!FXSYS_isDecimalDigit(str[cc])) {
            return false;
          }
          wsOutput = str[cc] + wsOutput;
          cc--;
        } else {
          wsOutput = L'0' + wsOutput;
        }
        ccf--;
        break;
      case 'z':
        if (cc >= 0) {
          if (!FXSYS_isDecimalDigit(str[cc])) {
            return false;
          }
          if (str[0] != '0') {
            wsOutput = str[cc] + wsOutput;
          }
          cc--;
        }
        ccf--;
        break;
      case 'Z':
        if (cc >= 0) {
          if (!FXSYS_isDecimalDigit(str[cc])) {
            return false;
          }
          if (str[0] == '0') {
            wsOutput = L' ' + wsOutput;
          } else {
            wsOutput = str[cc] + wsOutput;
          }
          cc--;
        } else {
          wsOutput = L' ' + wsOutput;
        }
        ccf--;
        break;
      case 'S':
        if (bNeg) {
          CFX_WideString wsMinusSymbol;
          pLocale->GetNumbericSymbol(FX_LOCALENUMSYMBOL_Minus, wsMinusSymbol);
          wsOutput = wsMinusSymbol + wsOutput;
          bAddNeg = true;
        } else {
          wsOutput = L' ' + wsOutput;
        }
        ccf--;
        break;
      case 's':
        if (bNeg) {
          CFX_WideString wsMinusSymbol;
          pLocale->GetNumbericSymbol(FX_LOCALENUMSYMBOL_Minus, wsMinusSymbol);
          wsOutput = wsMinusSymbol + wsOutput;
          bAddNeg = true;
        }
        ccf--;
        break;
      case 'E': {
        CFX_WideString wsExp;
        wsExp.Format(L"E%+d", exponent);
        wsOutput = wsExp + wsOutput;
      }
        ccf--;
        break;
      case '$': {
        CFX_WideString wsSymbol;
        pLocale->GetNumbericSymbol(FX_LOCALENUMSYMBOL_CurrencySymbol, wsSymbol);
        wsOutput = wsSymbol + wsOutput;
      }
        ccf--;
        break;
      case 'r':
        if (ccf - 1 >= 0 && strf[ccf - 1] == 'c') {
          if (bNeg) {
            wsOutput = L"CR" + wsOutput;
          }
          ccf -= 2;
          bAddNeg = true;
        }
        break;
      case 'R':
        if (ccf - 1 >= 0 && strf[ccf - 1] == 'C') {
          if (bNeg) {
            wsOutput = L"CR" + wsOutput;
          } else {
            wsOutput = L"  " + wsOutput;
          }
          ccf -= 2;
          bAddNeg = true;
        }
        break;
      case 'b':
        if (ccf - 1 >= 0 && strf[ccf - 1] == 'd') {
          if (bNeg) {
            wsOutput = L"db" + wsOutput;
          }
          ccf -= 2;
          bAddNeg = true;
        }
        break;
      case 'B':
        if (ccf - 1 >= 0 && strf[ccf - 1] == 'D') {
          if (bNeg) {
            wsOutput = L"DB" + wsOutput;
          } else {
            wsOutput = L"  " + wsOutput;
          }
          ccf -= 2;
          bAddNeg = true;
        }
        break;
      case '%': {
        CFX_WideString wsSymbol;
        pLocale->GetNumbericSymbol(FX_LOCALENUMSYMBOL_Percent, wsSymbol);
        wsOutput = wsSymbol + wsOutput;
      }
        ccf--;
        break;
      case ',':
        if (cc >= 0) {
          wsOutput = wsGroupSymbol + wsOutput;
        }
        ccf--;
        break;
      case '(':
        if (bNeg) {
          wsOutput = L"(" + wsOutput;
        } else {
          wsOutput = L" " + wsOutput;
        }
        bAddNeg = true;
        ccf--;
        break;
      case ')':
        if (bNeg) {
          wsOutput = L")" + wsOutput;
        } else {
          wsOutput = L" " + wsOutput;
        }
        ccf--;
        break;
      case '\'':
        wsOutput = FX_GetLiteralTextReverse(strf, ccf) + wsOutput;
        ccf--;
        break;
      default:
        wsOutput = strf[ccf] + wsOutput;
        ccf--;
    }
  }
  if (cc >= 0) {
    int nPos = dot_index % 3;
    wsOutput.clear();
    for (int32_t i = 0; i < dot_index; i++) {
      if (i % 3 == nPos && i != 0) {
        wsOutput += wsGroupSymbol;
      }
      wsOutput += wsSrcNum[i];
    }
    if (dot_index < len) {
      CFX_WideString wsSymbol;
      pLocale->GetNumbericSymbol(FX_LOCALENUMSYMBOL_Decimal, wsSymbol);
      wsOutput += wsSymbol;
      wsOutput += wsSrcNum.Right(len - dot_index - 1);
    }
    if (bNeg) {
      CFX_WideString wsMinusymbol;
      pLocale->GetNumbericSymbol(FX_LOCALENUMSYMBOL_Minus, wsMinusymbol);
      wsOutput = wsMinusymbol + wsOutput;
    }
    return false;
  }
  if (dot_index_f == wsNumFormat.GetLength()) {
    if (!bAddNeg && bNeg) {
      CFX_WideString wsMinusymbol;
      pLocale->GetNumbericSymbol(FX_LOCALENUMSYMBOL_Minus, wsMinusymbol);
      wsOutput = wsMinusymbol + wsOutput;
    }
    return true;
  }
  CFX_WideString wsDotSymbol;
  pLocale->GetNumbericSymbol(FX_LOCALENUMSYMBOL_Decimal, wsDotSymbol);
  if (strf[dot_index_f] == 'V') {
    wsOutput += wsDotSymbol;
  } else if (strf[dot_index_f] == '.') {
    if (dot_index < len) {
      wsOutput += wsDotSymbol;
    } else {
      if (strf[dot_index_f + 1] == '9' || strf[dot_index_f + 1] == 'Z') {
        wsOutput += wsDotSymbol;
      }
    }
  }
  ccf = dot_index_f + 1;
  cc = dot_index + 1;
  while (ccf < lenf) {
    switch (strf[ccf]) {
      case '\'':
        wsOutput += FX_GetLiteralText(strf, ccf, lenf);
        ccf++;
        break;
      case '9':
        if (cc < len) {
          if (!FXSYS_isDecimalDigit(str[cc])) {
            return false;
          }
          wsOutput += str[cc];
          cc++;
        } else {
          wsOutput += L'0';
        }
        ccf++;
        break;
      case 'z':
        if (cc < len) {
          if (!FXSYS_isDecimalDigit(str[cc])) {
            return false;
          }
          wsOutput += str[cc];
          cc++;
        }
        ccf++;
        break;
      case 'Z':
        if (cc < len) {
          if (!FXSYS_isDecimalDigit(str[cc])) {
            return false;
          }
          wsOutput += str[cc];
          cc++;
        } else {
          wsOutput += L'0';
        }
        ccf++;
        break;
      case 'E': {
        CFX_WideString wsExp;
        wsExp.Format(L"E%+d", exponent);
        wsOutput += wsExp;
      }
        ccf++;
        break;
      case '$': {
        CFX_WideString wsSymbol;
        pLocale->GetNumbericSymbol(FX_LOCALENUMSYMBOL_CurrencySymbol, wsSymbol);
        wsOutput += wsSymbol;
      }
        ccf++;
        break;
      case 'c':
        if (ccf + 1 < lenf && strf[ccf + 1] == 'r') {
          if (bNeg) {
            wsOutput += L"CR";
          }
          ccf += 2;
          bAddNeg = true;
        }
        break;
      case 'C':
        if (ccf + 1 < lenf && strf[ccf + 1] == 'R') {
          if (bNeg) {
            wsOutput += L"CR";
          } else {
            wsOutput += L"  ";
          }
          ccf += 2;
          bAddNeg = true;
        }
        break;
      case 'd':
        if (ccf + 1 < lenf && strf[ccf + 1] == 'b') {
          if (bNeg) {
            wsOutput += L"db";
          }
          ccf += 2;
          bAddNeg = true;
        }
        break;
      case 'D':
        if (ccf + 1 < lenf && strf[ccf + 1] == 'B') {
          if (bNeg) {
            wsOutput += L"DB";
          } else {
            wsOutput += L"  ";
          }
          ccf += 2;
          bAddNeg = true;
        }
        break;
      case '%': {
        CFX_WideString wsSymbol;
        pLocale->GetNumbericSymbol(FX_LOCALENUMSYMBOL_Percent, wsSymbol);
        wsOutput += wsSymbol;
      }
        ccf++;
        break;
      case '8': {
        while (ccf < lenf && strf[ccf] == '8') {
          ccf++;
        }
        while (cc < len && FXSYS_isDecimalDigit(str[cc])) {
          wsOutput += str[cc];
          cc++;
        }
      } break;
      case ',':
        wsOutput += wsGroupSymbol;
        ccf++;
        break;
      case '(':
        if (bNeg) {
          wsOutput += '(';
        } else {
          wsOutput += ' ';
        }
        bAddNeg = true;
        ccf++;
        break;
      case ')':
        if (bNeg) {
          wsOutput += ')';
        } else {
          wsOutput += ' ';
        }
        ccf++;
        break;
      default:
        ccf++;
    }
  }
  if (!bAddNeg && bNeg) {
    CFX_WideString wsMinusymbol;
    pLocale->GetNumbericSymbol(FX_LOCALENUMSYMBOL_Minus, wsMinusymbol);
    wsOutput =
        wsMinusymbol + wsOutput[0] + wsOutput.Mid(1, wsOutput.GetLength() - 1);
  }
  return true;
}
bool CFX_FormatString::FormatLCNumeric(CFX_LCNumeric& lcNum,
                                       const CFX_WideString& wsPattern,
                                       CFX_WideString& wsOutput) {
  int32_t dot_index_f = -1;
  uint32_t dwNumStyle = 0;
  CFX_WideString wsNumFormat;
  IFX_Locale* pLocale =
      GetNumericFormat(wsPattern, dot_index_f, dwNumStyle, wsNumFormat);
  if (!pLocale || wsNumFormat.IsEmpty()) {
    return false;
  }
  int32_t cc = 0, ccf = 0;
  const FX_WCHAR* strf = wsNumFormat.c_str();
  int lenf = wsNumFormat.GetLength();
  double dbOrgRaw = lcNum.GetDouble();
  double dbRetValue = dbOrgRaw;
  if (dwNumStyle & FX_NUMSTYLE_Percent) {
    dbRetValue *= 100;
  }
  int32_t exponent = 0;
  if (dwNumStyle & FX_NUMSTYLE_Exponent) {
    int fixed_count = 0;
    while (ccf < dot_index_f) {
      switch (strf[ccf]) {
        case '\'':
          FX_GetLiteralText(strf, ccf, dot_index_f);
          break;
        case '9':
        case 'z':
        case 'Z':
          fixed_count++;
          break;
      }
      ccf++;
    }
    int threshold = 1;
    while (fixed_count > 1) {
      threshold *= 10;
      fixed_count--;
    }
    if (dbRetValue != 0) {
      if (dbRetValue < threshold) {
        dbRetValue *= 10;
        exponent = -1;
        while (dbRetValue < threshold) {
          dbRetValue *= 10;
          exponent -= 1;
        }
      } else if (dbRetValue > threshold) {
        threshold *= 10;
        while (dbRetValue > threshold) {
          dbRetValue /= 10;
          exponent += 1;
        }
      }
    }
  }
  if (dwNumStyle & (FX_NUMSTYLE_Percent | FX_NUMSTYLE_Exponent)) {
    lcNum = CFX_LCNumeric(dbRetValue);
  }
  bool bTrimTailZeros = false;
  int32_t iTreading =
      FX_GetNumTrailingLimit(wsNumFormat, dot_index_f, bTrimTailZeros);
  CFX_WideString wsNumeric = lcNum.ToString(iTreading, bTrimTailZeros);
  if (wsNumeric.IsEmpty()) {
    return false;
  }
  CFX_WideString wsGroupSymbol;
  pLocale->GetNumbericSymbol(FX_LOCALENUMSYMBOL_Grouping, wsGroupSymbol);
  bool bNeg = false;
  if (wsNumeric[0] == '-') {
    bNeg = true;
    wsNumeric.Delete(0, 1);
  }
  bool bAddNeg = false;
  const FX_WCHAR* str = wsNumeric.c_str();
  int len = wsNumeric.GetLength();
  int dot_index = wsNumeric.Find('.');
  if (dot_index == -1) {
    dot_index = len;
  }
  ccf = dot_index_f - 1;
  cc = dot_index - 1;
  while (ccf >= 0) {
    switch (strf[ccf]) {
      case '9':
        if (cc >= 0) {
          wsOutput = str[cc] + wsOutput;
          cc--;
        } else {
          wsOutput = L'0' + wsOutput;
        }
        ccf--;
        break;
      case 'z':
        if (cc >= 0) {
          if (lcNum.m_Integral != 0) {
            wsOutput = str[cc] + wsOutput;
          }
          cc--;
        }
        ccf--;
        break;
      case 'Z':
        if (cc >= 0) {
          if (lcNum.m_Integral == 0) {
            wsOutput = L' ' + wsOutput;
          } else {
            wsOutput = str[cc] + wsOutput;
          }
          cc--;
        } else {
          wsOutput = L' ' + wsOutput;
        }
        ccf--;
        break;
      case 'S':
        if (bNeg) {
          CFX_WideString wsMinusSymbol;
          pLocale->GetNumbericSymbol(FX_LOCALENUMSYMBOL_Minus, wsMinusSymbol);
          wsOutput = wsMinusSymbol + wsOutput;
          bAddNeg = true;
        } else {
          wsOutput = L' ' + wsOutput;
        }
        ccf--;
        break;
      case 's':
        if (bNeg) {
          CFX_WideString wsMinusSymbol;
          pLocale->GetNumbericSymbol(FX_LOCALENUMSYMBOL_Minus, wsMinusSymbol);
          wsOutput = wsMinusSymbol + wsOutput;
          bAddNeg = true;
        }
        ccf--;
        break;
      case 'E': {
        CFX_WideString wsExp;
        wsExp.Format(L"E%+d", exponent);
        wsOutput = wsExp + wsOutput;
      }
        ccf--;
        break;
      case '$': {
        CFX_WideString wsSymbol;
        pLocale->GetNumbericSymbol(FX_LOCALENUMSYMBOL_CurrencySymbol, wsSymbol);
        wsOutput = wsSymbol + wsOutput;
      }
        ccf--;
        break;
      case 'r':
        if (ccf - 1 >= 0 && strf[ccf - 1] == 'c') {
          if (bNeg) {
            wsOutput = L"CR" + wsOutput;
          }
          ccf -= 2;
          bAddNeg = true;
        }
        break;
      case 'R':
        if (ccf - 1 >= 0 && strf[ccf - 1] == 'C') {
          if (bNeg) {
            wsOutput = L"CR" + wsOutput;
          } else {
            wsOutput = L"  " + wsOutput;
          }
          ccf -= 2;
          bAddNeg = true;
        }
        break;
      case 'b':
        if (ccf - 1 >= 0 && strf[ccf - 1] == 'd') {
          if (bNeg) {
            wsOutput = L"db" + wsOutput;
          }
          ccf -= 2;
          bAddNeg = true;
        }
        break;
      case 'B':
        if (ccf - 1 >= 0 && strf[ccf - 1] == 'D') {
          if (bNeg) {
            wsOutput = L"DB" + wsOutput;
          } else {
            wsOutput = L"  " + wsOutput;
          }
          ccf -= 2;
          bAddNeg = true;
        }
        break;
      case '%': {
        CFX_WideString wsSymbol;
        pLocale->GetNumbericSymbol(FX_LOCALENUMSYMBOL_Percent, wsSymbol);
        wsOutput = wsSymbol + wsOutput;
      }
        ccf--;
        break;
      case ',':
        if (cc >= 0) {
          wsOutput = wsGroupSymbol + wsOutput;
        }
        ccf--;
        break;
      case '(':
        if (bNeg) {
          wsOutput = L"(" + wsOutput;
        } else {
          wsOutput = L" " + wsOutput;
        }
        bAddNeg = true;
        ccf--;
        break;
      case ')':
        if (bNeg) {
          wsOutput = L")" + wsOutput;
        } else {
          wsOutput = L" " + wsOutput;
        }
        ccf--;
        break;
      case '\'':
        wsOutput = FX_GetLiteralTextReverse(strf, ccf) + wsOutput;
        ccf--;
        break;
      default:
        wsOutput = strf[ccf] + wsOutput;
        ccf--;
    }
  }
  if (cc >= 0) {
    int nPos = dot_index % 3;
    wsOutput.clear();
    for (int32_t i = 0; i < dot_index; i++) {
      if (i % 3 == nPos && i != 0) {
        wsOutput += wsGroupSymbol;
      }
      wsOutput += wsNumeric[i];
    }
    if (dot_index < len) {
      CFX_WideString wsSymbol;
      pLocale->GetNumbericSymbol(FX_LOCALENUMSYMBOL_Decimal, wsSymbol);
      wsOutput += wsSymbol;
      wsOutput += wsNumeric.Right(len - dot_index - 1);
    }
    if (bNeg) {
      CFX_WideString wsMinusymbol;
      pLocale->GetNumbericSymbol(FX_LOCALENUMSYMBOL_Minus, wsMinusymbol);
      wsOutput = wsMinusymbol + wsOutput;
    }
    return false;
  }
  if (dot_index_f == wsNumFormat.GetLength()) {
    if (!bAddNeg && bNeg) {
      CFX_WideString wsMinusymbol;
      pLocale->GetNumbericSymbol(FX_LOCALENUMSYMBOL_Minus, wsMinusymbol);
      wsOutput = wsMinusymbol + wsOutput;
    }
    return true;
  }
  CFX_WideString wsDotSymbol;
  pLocale->GetNumbericSymbol(FX_LOCALENUMSYMBOL_Decimal, wsDotSymbol);
  if (strf[dot_index_f] == 'V') {
    wsOutput += wsDotSymbol;
  } else if (strf[dot_index_f] == '.') {
    if (dot_index < len) {
      wsOutput += wsDotSymbol;
    } else {
      if (strf[dot_index_f + 1] == '9' || strf[dot_index_f + 1] == 'Z') {
        wsOutput += wsDotSymbol;
      }
    }
  }
  ccf = dot_index_f + 1;
  cc = dot_index + 1;
  while (ccf < lenf) {
    switch (strf[ccf]) {
      case '\'':
        wsOutput += FX_GetLiteralText(strf, ccf, lenf);
        ccf++;
        break;
      case '9':
        if (cc < len) {
          wsOutput += str[cc];
          cc++;
        } else {
          wsOutput += L'0';
        }
        ccf++;
        break;
      case 'z':
        if (cc < len) {
          wsOutput += str[cc];
          cc++;
        }
        ccf++;
        break;
      case 'Z':
        if (cc < len) {
          wsOutput += str[cc];
          cc++;
        } else {
          wsOutput += L'0';
        }
        ccf++;
        break;
      case 'E': {
        CFX_WideString wsExp;
        wsExp.Format(L"E%+d", exponent);
        wsOutput += wsExp;
      }
        ccf++;
        break;
      case '$': {
        CFX_WideString wsSymbol;
        pLocale->GetNumbericSymbol(FX_LOCALENUMSYMBOL_CurrencySymbol, wsSymbol);
        wsOutput += wsSymbol;
      }
        ccf++;
        break;
      case 'c':
        if (ccf + 1 < lenf && strf[ccf + 1] == 'r') {
          if (bNeg) {
            wsOutput += L"CR";
          }
          ccf += 2;
          bAddNeg = true;
        }
        break;
      case 'C':
        if (ccf + 1 < lenf && strf[ccf + 1] == 'R') {
          if (bNeg) {
            wsOutput += L"CR";
          } else {
            wsOutput += L"  ";
          }
          ccf += 2;
          bAddNeg = true;
        }
        break;
      case 'd':
        if (ccf + 1 < lenf && strf[ccf + 1] == 'b') {
          if (bNeg) {
            wsOutput += L"db";
          }
          ccf += 2;
          bAddNeg = true;
        }
        break;
      case 'D':
        if (ccf + 1 < lenf && strf[ccf + 1] == 'B') {
          if (bNeg) {
            wsOutput += L"DB";
          } else {
            wsOutput += L"  ";
          }
          ccf += 2;
          bAddNeg = true;
        }
        break;
      case '%': {
        CFX_WideString wsSymbol;
        pLocale->GetNumbericSymbol(FX_LOCALENUMSYMBOL_Percent, wsSymbol);
        wsOutput += wsSymbol;
      }
        ccf++;
        break;
      case '8': {
        while (ccf < lenf && strf[ccf] == '8') {
          ccf++;
        }
        while (cc < len && FXSYS_isDecimalDigit(str[cc])) {
          wsOutput += str[cc];
          cc++;
        }
      } break;
      case ',':
        wsOutput += wsGroupSymbol;
        ccf++;
        break;
      case '(':
        if (bNeg) {
          wsOutput += '(';
        } else {
          wsOutput += ' ';
        }
        bAddNeg = true;
        ccf++;
        break;
      case ')':
        if (bNeg) {
          wsOutput += ')';
        } else {
          wsOutput += ' ';
        }
        ccf++;
        break;
      default:
        ccf++;
    }
  }
  if (!bAddNeg && bNeg) {
    CFX_WideString wsMinusymbol;
    pLocale->GetNumbericSymbol(FX_LOCALENUMSYMBOL_Minus, wsMinusymbol);
    wsOutput =
        wsOutput[0] + wsMinusymbol + wsOutput.Mid(1, wsOutput.GetLength() - 1);
  }
  return true;
}
bool CFX_FormatString::FormatNum(const CFX_WideString& wsSrcNum,
                                 const CFX_WideString& wsPattern,
                                 CFX_WideString& wsOutput) {
  if (wsSrcNum.IsEmpty() || wsPattern.IsEmpty()) {
    return false;
  }
  return FormatStrNum(wsSrcNum.AsStringC(), wsPattern, wsOutput);
}
bool CFX_FormatString::FormatNum(FX_FLOAT fNum,
                                 const CFX_WideString& wsPattern,
                                 CFX_WideString& wsOutput) {
  if (wsPattern.IsEmpty()) {
    return false;
  }
  CFX_LCNumeric lcNum(fNum);
  return FormatLCNumeric(lcNum, wsPattern, wsOutput);
}
bool FX_DateFromCanonical(const CFX_WideString& wsDate, CFX_Unitime& datetime) {
  int32_t year = 1900;
  int32_t month = 1;
  int32_t day = 1;
  uint16_t wYear = 0;
  int cc_start = 0, cc = 0;
  const FX_WCHAR* str = wsDate.c_str();
  int len = wsDate.GetLength();
  if (len > 10) {
    return false;
  }
  while (cc < len && cc < 4) {
    if (!FXSYS_isDecimalDigit(str[cc])) {
      return false;
    }
    wYear = wYear * 10 + str[cc++] - '0';
  }
  year = wYear;
  if (cc < 4 || wYear < 1900) {
    return false;
  }
  if (cc < len) {
    if (str[cc] == '-') {
      cc++;
    }
    cc_start = cc;
    uint8_t tmpM = 0;
    while (cc < len && cc < cc_start + 2) {
      if (!FXSYS_isDecimalDigit(str[cc])) {
        return false;
      }
      tmpM = tmpM * 10 + str[cc++] - '0';
    }
    month = tmpM;
    if (cc == cc_start + 1 || tmpM > 12 || tmpM < 1) {
      return false;
    }
    if (cc < len) {
      if (str[cc] == '-') {
        cc++;
      }
      uint8_t tmpD = 0;
      cc_start = cc;
      while (cc < len && cc < cc_start + 2) {
        if (!FXSYS_isDecimalDigit(str[cc])) {
          return false;
        }
        tmpD = tmpD * 10 + str[cc++] - '0';
      }
      day = tmpD;
      if (tmpD < 1) {
        return false;
      }
      if ((tmpM == 1 || tmpM == 3 || tmpM == 5 || tmpM == 7 || tmpM == 8 ||
           tmpM == 10 || tmpM == 12) &&
          tmpD > 31) {
        return false;
      }
      if ((tmpM == 4 || tmpM == 6 || tmpM == 9 || tmpM == 11) && tmpD > 30) {
        return false;
      }
      bool iLeapYear;
      if ((wYear % 4 == 0 && wYear % 100 != 0) || wYear % 400 == 0) {
        iLeapYear = true;
      } else {
        iLeapYear = false;
      }
      if ((iLeapYear && tmpM == 2 && tmpD > 29) ||
          (!iLeapYear && tmpM == 2 && tmpD > 28)) {
        return false;
      }
    }
  }
  CFX_Unitime ut;
  ut.Set(year, month, day);
  datetime = datetime + ut;
  return true;
}
bool FX_TimeFromCanonical(const CFX_WideStringC& wsTime,
                          CFX_Unitime& datetime,
                          IFX_Locale* pLocale) {
  if (wsTime.GetLength() == 0) {
    return false;
  }
  uint8_t hour = 0;
  uint8_t minute = 0;
  uint8_t second = 0;
  uint16_t millisecond = 0;
  int cc_start = 0, cc = cc_start;
  const FX_WCHAR* str = wsTime.c_str();
  int len = wsTime.GetLength();
  while (cc < len && cc < 2) {
    if (!FXSYS_isDecimalDigit(str[cc])) {
      return false;
    }
    hour = hour * 10 + str[cc++] - '0';
  }
  if (cc < 2 || hour >= 24) {
    return false;
  }
  if (cc < len) {
    if (str[cc] == ':') {
      cc++;
    }
    cc_start = cc;
    while (cc < len && cc < cc_start + 2) {
      if (!FXSYS_isDecimalDigit(str[cc])) {
        return false;
      }
      minute = minute * 10 + str[cc++] - '0';
    }
    if (cc == cc_start + 1 || minute >= 60) {
      return false;
    }
    if (cc < len) {
      if (str[cc] == ':') {
        cc++;
      }
      cc_start = cc;
      while (cc < len && cc < cc_start + 2) {
        if (!FXSYS_isDecimalDigit(str[cc])) {
          return false;
        }
        second = second * 10 + str[cc++] - '0';
      }
      if (cc == cc_start + 1 || second >= 60) {
        return false;
      }
      if (cc < len) {
        if (str[cc] == '.') {
          cc++;
          cc_start = cc;
          while (cc < len && cc < cc_start + 3) {
            if (!FXSYS_isDecimalDigit(str[cc])) {
              return false;
            }
            millisecond = millisecond * 10 + str[cc++] - '0';
          }
          if (cc < cc_start + 3)
            return false;
        }
        if (cc < len) {
          FX_TIMEZONE tzDiff;
          tzDiff.tzHour = 0;
          tzDiff.tzMinute = 0;
          if (str[cc] != 'Z') {
            cc += FX_ParseTimeZone(str + cc, len - cc, tzDiff);
          }
          FX_ResolveZone(hour, minute, tzDiff, pLocale);
        }
      }
    }
  }
  CFX_Unitime ut;
  ut.Set(0, 0, 0, hour, minute, second, millisecond);
  datetime = datetime + ut;
  return true;
}
static uint16_t FX_GetSolarMonthDays(uint16_t year, uint16_t month) {
  if (month % 2) {
    return 31;
  } else if (month == 2) {
    return FX_IsLeapYear(year) ? 29 : 28;
  }
  return 30;
}
static uint16_t FX_GetWeekDay(uint16_t year, uint16_t month, uint16_t day) {
  uint16_t g_month_day[] = {0, 3, 3, 6, 1, 4, 6, 2, 5, 0, 3, 5};
  uint16_t nDays =
      (year - 1) % 7 + (year - 1) / 4 - (year - 1) / 100 + (year - 1) / 400;
  nDays += g_month_day[month - 1] + day;
  if (FX_IsLeapYear(year) && month > 2) {
    nDays++;
  }
  return nDays % 7;
}
static uint16_t FX_GetWeekOfMonth(uint16_t year, uint16_t month, uint16_t day) {
  uint16_t week_day = FX_GetWeekDay(year, month, 1);
  uint16_t week_index = 0;
  week_index += day / 7;
  day = day % 7;
  if (week_day + day > 7) {
    week_index++;
  }
  return week_index;
}
static uint16_t FX_GetWeekOfYear(uint16_t year, uint16_t month, uint16_t day) {
  uint16_t nDays = 0;
  for (uint16_t i = 1; i < month; i++) {
    nDays += FX_GetSolarMonthDays(year, i);
  }
  nDays += day;
  uint16_t week_day = FX_GetWeekDay(year, 1, 1);
  uint16_t week_index = 1;
  week_index += nDays / 7;
  nDays = nDays % 7;
  if (week_day + nDays > 7) {
    week_index++;
  }
  return week_index;
}
static bool FX_DateFormat(const CFX_WideString& wsDatePattern,
                          IFX_Locale* pLocale,
                          const CFX_Unitime& datetime,
                          CFX_WideString& wsResult) {
  bool bRet = true;
  int32_t year = datetime.GetYear();
  uint8_t month = datetime.GetMonth();
  uint8_t day = datetime.GetDay();
  int32_t ccf = 0;
  const FX_WCHAR* strf = wsDatePattern.c_str();
  int32_t lenf = wsDatePattern.GetLength();
  CFX_WideStringC wsDateSymbols(gs_wsDateSymbols);
  while (ccf < lenf) {
    if (strf[ccf] == '\'') {
      wsResult += FX_GetLiteralText(strf, ccf, lenf);
      ccf++;
      continue;
    } else if (wsDateSymbols.Find(strf[ccf]) == -1) {
      wsResult += strf[ccf++];
      continue;
    }
    uint32_t dwSymbolNum = 1;
    FX_WCHAR dwCharSymbol = strf[ccf++];
    while (ccf < lenf && strf[ccf] == dwCharSymbol) {
      ccf++;
      dwSymbolNum++;
    }
    uint32_t dwSymbol = (dwCharSymbol << 8) | (dwSymbolNum + '0');
    if (dwSymbol == FXBSTR_ID(0, 0, 'D', '1')) {
      CFX_WideString wsDay;
      wsDay.Format(L"%d", day);
      wsResult += wsDay;
    } else if (dwSymbol == FXBSTR_ID(0, 0, 'D', '2')) {
      CFX_WideString wsDay;
      wsDay.Format(L"%02d", day);
      wsResult += wsDay;
    } else if (dwSymbol == FXBSTR_ID(0, 0, 'J', '1')) {
      uint16_t nDays = 0;
      for (int i = 1; i < month; i++) {
        nDays += FX_GetSolarMonthDays(year, i);
      }
      nDays += day;
      CFX_WideString wsDays;
      wsDays.Format(L"%d", nDays);
      wsResult += wsDays;
    } else if (dwSymbol == FXBSTR_ID(0, 0, 'J', '3')) {
      uint16_t nDays = 0;
      for (int i = 1; i < month; i++) {
        nDays += FX_GetSolarMonthDays(year, i);
      }
      nDays += day;
      CFX_WideString wsDays;
      wsDays.Format(L"%03d", nDays);
      wsResult += wsDays;
    } else if (dwSymbol == FXBSTR_ID(0, 0, 'M', '1')) {
      CFX_WideString wsMonth;
      wsMonth.Format(L"%d", month);
      wsResult += wsMonth;
    } else if (dwSymbol == FXBSTR_ID(0, 0, 'M', '2')) {
      CFX_WideString wsMonth;
      wsMonth.Format(L"%02d", month);
      wsResult += wsMonth;
    } else if (dwSymbol == FXBSTR_ID(0, 0, 'M', '3')) {
      CFX_WideString wsTemp;
      pLocale->GetMonthName(month - 1, wsTemp, true);
      wsResult += wsTemp;
    } else if (dwSymbol == FXBSTR_ID(0, 0, 'M', '4')) {
      CFX_WideString wsTemp;
      pLocale->GetMonthName(month - 1, wsTemp, false);
      wsResult += wsTemp;
    } else if (dwSymbol == FXBSTR_ID(0, 0, 'E', '1')) {
      uint16_t wWeekDay = FX_GetWeekDay(year, month, day);
      CFX_WideString wsWeekDay;
      wsWeekDay.Format(L"%d", wWeekDay + 1);
      wsResult += wsWeekDay;
    } else if (dwSymbol == FXBSTR_ID(0, 0, 'E', '3')) {
      uint16_t wWeekDay = FX_GetWeekDay(year, month, day);
      CFX_WideString wsTemp;
      pLocale->GetDayName(wWeekDay, wsTemp, true);
      wsResult += wsTemp;
    } else if (dwSymbol == FXBSTR_ID(0, 0, 'E', '4')) {
      uint16_t wWeekDay = FX_GetWeekDay(year, month, day);
      if (pLocale) {
        CFX_WideString wsTemp;
        pLocale->GetDayName(wWeekDay, wsTemp, false);
        wsResult += wsTemp;
      }
    } else if (dwSymbol == FXBSTR_ID(0, 0, 'e', '1')) {
      uint16_t wWeekDay = FX_GetWeekDay(year, month, day);
      CFX_WideString wsWeekDay;
      wsWeekDay.Format(L"%d", wWeekDay ? wWeekDay : 7);
      wsResult += wsWeekDay;
    } else if (dwSymbol == FXBSTR_ID(0, 0, 'G', '1')) {
      CFX_WideString wsTemp;
      pLocale->GetEraName(wsTemp, year < 0);
      wsResult += wsTemp;
    } else if (dwSymbol == FXBSTR_ID(0, 0, 'Y', '2')) {
      CFX_WideString wsYear;
      wsYear.Format(L"%02d", year % 100);
      wsResult += wsYear;
    } else if (dwSymbol == FXBSTR_ID(0, 0, 'Y', '4')) {
      CFX_WideString wsYear;
      wsYear.Format(L"%d", year);
      wsResult += wsYear;
    } else if (dwSymbol == FXBSTR_ID(0, 0, 'w', '1')) {
      uint16_t week_index = FX_GetWeekOfMonth(year, month, day);
      CFX_WideString wsWeekInMonth;
      wsWeekInMonth.Format(L"%d", week_index);
      wsResult += wsWeekInMonth;
    } else if (dwSymbol == FXBSTR_ID(0, 0, 'W', '2')) {
      uint16_t week_index = FX_GetWeekOfYear(year, month, day);
      CFX_WideString wsWeekInYear;
      wsWeekInYear.Format(L"%02d", week_index);
      wsResult += wsWeekInYear;
    }
  }
  return bRet;
}
static bool FX_TimeFormat(const CFX_WideString& wsTimePattern,
                          IFX_Locale* pLocale,
                          const CFX_Unitime& datetime,
                          CFX_WideString& wsResult) {
  bool bGMT = false;
  bool bRet = true;
  uint8_t hour = datetime.GetHour();
  uint8_t minute = datetime.GetMinute();
  uint8_t second = datetime.GetSecond();
  uint16_t millisecond = datetime.GetMillisecond();
  int32_t ccf = 0;
  const FX_WCHAR* strf = wsTimePattern.c_str();
  int32_t lenf = wsTimePattern.GetLength();
  uint16_t wHour = hour;
  bool bPM = false;
  if (wsTimePattern.Find('A') != -1) {
    if (wHour >= 12) {
      bPM = true;
    }
  }
  CFX_WideStringC wsTimeSymbols(gs_wsTimeSymbols);
  while (ccf < lenf) {
    if (strf[ccf] == '\'') {
      wsResult += FX_GetLiteralText(strf, ccf, lenf);
      ccf++;
      continue;
    } else if (wsTimeSymbols.Find(strf[ccf]) == -1) {
      wsResult += strf[ccf++];
      continue;
    }
    uint32_t dwSymbolNum = 1;
    FX_WCHAR dwCharSymbol = strf[ccf++];
    while (ccf < lenf && strf[ccf] == dwCharSymbol) {
      ccf++;
      dwSymbolNum++;
    }
    uint32_t dwSymbol = (dwCharSymbol << 8) | (dwSymbolNum + '0');
    if (dwSymbol == FXBSTR_ID(0, 0, 'h', '1')) {
      if (wHour > 12) {
        wHour -= 12;
      }
      CFX_WideString wsHour;
      wsHour.Format(L"%d", wHour == 0 ? 12 : wHour);
      wsResult += wsHour;
    } else if (dwSymbol == FXBSTR_ID(0, 0, 'h', '2')) {
      if (wHour > 12) {
        wHour -= 12;
      }
      CFX_WideString wsHour;
      wsHour.Format(L"%02d", wHour == 0 ? 12 : wHour);
      wsResult += wsHour;
    } else if (dwSymbol == FXBSTR_ID(0, 0, 'K', '1')) {
      CFX_WideString wsHour;
      wsHour.Format(L"%d", wHour == 0 ? 24 : wHour);
      wsResult += wsHour;
    } else if (dwSymbol == FXBSTR_ID(0, 0, 'K', '2')) {
      CFX_WideString wsHour;
      wsHour.Format(L"%02d", wHour == 0 ? 24 : wHour);
      wsResult += wsHour;
    } else if (dwSymbol == FXBSTR_ID(0, 0, 'k', '1')) {
      if (wHour > 12) {
        wHour -= 12;
      }
      CFX_WideString wsHour;
      wsHour.Format(L"%d", wHour);
      wsResult += wsHour;
    } else if (dwSymbol == FXBSTR_ID(0, 0, 'H', '1')) {
      CFX_WideString wsHour;
      wsHour.Format(L"%d", wHour);
      wsResult += wsHour;
    } else if (dwSymbol == FXBSTR_ID(0, 0, 'k', '2')) {
      if (wHour > 12) {
        wHour -= 12;
      }
      CFX_WideString wsHour;
      wsHour.Format(L"%02d", wHour);
      wsResult += wsHour;
    } else if (dwSymbol == FXBSTR_ID(0, 0, 'H', '2')) {
      CFX_WideString wsHour;
      wsHour.Format(L"%02d", wHour);
      wsResult += wsHour;
    } else if (dwSymbol == FXBSTR_ID(0, 0, 'M', '1')) {
      CFX_WideString wsMinute;
      wsMinute.Format(L"%d", minute);
      wsResult += wsMinute;
    } else if (dwSymbol == FXBSTR_ID(0, 0, 'M', '2')) {
      CFX_WideString wsMinute;
      wsMinute.Format(L"%02d", minute);
      wsResult += wsMinute;
    } else if (dwSymbol == FXBSTR_ID(0, 0, 'S', '1')) {
      CFX_WideString wsSecond;
      wsSecond.Format(L"%d", second);
      wsResult += wsSecond;
    } else if (dwSymbol == FXBSTR_ID(0, 0, 'S', '2')) {
      CFX_WideString wsSecond;
      wsSecond.Format(L"%02d", second);
      wsResult += wsSecond;
    } else if (dwSymbol == FXBSTR_ID(0, 0, 'F', '3')) {
      CFX_WideString wsMilliseconds;
      wsMilliseconds.Format(L"%03d", millisecond);
      wsResult += wsMilliseconds;
    } else if (dwSymbol == FXBSTR_ID(0, 0, 'A', '1')) {
      CFX_WideString wsMeridiem;
      pLocale->GetMeridiemName(wsMeridiem, !bPM);
      wsResult += wsMeridiem;
    } else if (dwSymbol == FXBSTR_ID(0, 0, 'Z', '1')) {
      wsResult += FX_WSTRC(L"GMT");
      FX_TIMEZONE tz;
      pLocale->GetTimeZone(tz);
      if (!bGMT && (tz.tzHour != 0 || tz.tzMinute != 0)) {
        if (tz.tzHour < 0) {
          wsResult += FX_WSTRC(L"-");
        } else {
          wsResult += FX_WSTRC(L"+");
        }
        CFX_WideString wsTimezone;
        wsTimezone.Format(L"%02d:%02d", FXSYS_abs(tz.tzHour), tz.tzMinute);
        wsResult += wsTimezone;
      }
    } else if (dwSymbol == FXBSTR_ID(0, 0, 'z', '1')) {
      FX_TIMEZONE tz;
      pLocale->GetTimeZone(tz);
      if (!bGMT && tz.tzHour != 0 && tz.tzMinute != 0) {
        if (tz.tzHour < 0) {
          wsResult += FX_WSTRC(L"-");
        } else {
          wsResult += FX_WSTRC(L"+");
        }
        CFX_WideString wsTimezone;
        wsTimezone.Format(L"%02d:%02d", FXSYS_abs(tz.tzHour), tz.tzMinute);
        wsResult += wsTimezone;
      }
    }
  }
  return bRet;
}
static bool FX_FormatDateTime(const CFX_Unitime& dt,
                              const CFX_WideString& wsDatePattern,
                              const CFX_WideString& wsTimePattern,
                              bool bDateFirst,
                              IFX_Locale* pLocale,
                              CFX_WideString& wsOutput) {
  bool bRet = true;
  CFX_WideString wsDateOut, wsTimeOut;
  if (!wsDatePattern.IsEmpty()) {
    bRet &= FX_DateFormat(wsDatePattern, pLocale, dt, wsDateOut);
  }
  if (!wsTimePattern.IsEmpty()) {
    bRet &= FX_TimeFormat(wsTimePattern, pLocale, dt, wsTimeOut);
  }
  wsOutput = bDateFirst ? wsDateOut + wsTimeOut : wsTimeOut + wsDateOut;
  return bRet;
}
bool CFX_FormatString::FormatDateTime(const CFX_WideString& wsSrcDateTime,
                                      const CFX_WideString& wsPattern,
                                      CFX_WideString& wsOutput) {
  if (wsSrcDateTime.IsEmpty() || wsPattern.IsEmpty()) {
    return false;
  }
  CFX_WideString wsDatePattern, wsTimePattern;
  IFX_Locale* pLocale = nullptr;
  FX_DATETIMETYPE eCategory =
      GetDateTimeFormat(wsPattern, pLocale, wsDatePattern, wsTimePattern);
  if (!pLocale || eCategory == FX_DATETIMETYPE_Unknown) {
    return false;
  }
  CFX_Unitime dt(0);
  int32_t iT = wsSrcDateTime.Find(L"T");
  if (iT < 0) {
    if (eCategory == FX_DATETIMETYPE_Date) {
      FX_DateFromCanonical(wsSrcDateTime, dt);
    } else if (eCategory == FX_DATETIMETYPE_Time) {
      FX_TimeFromCanonical(wsSrcDateTime.AsStringC(), dt, pLocale);
    }
  } else {
    FX_DateFromCanonical(wsSrcDateTime.Left(iT), dt);
    FX_TimeFromCanonical(
        wsSrcDateTime.Right(wsSrcDateTime.GetLength() - iT - 1).AsStringC(), dt,
        pLocale);
  }
  return FX_FormatDateTime(dt, wsDatePattern, wsTimePattern,
                           eCategory != FX_DATETIMETYPE_TimeDate, pLocale,
                           wsOutput);
}
bool CFX_FormatString::FormatDateTime(const CFX_WideString& wsSrcDateTime,
                                      const CFX_WideString& wsPattern,
                                      CFX_WideString& wsOutput,
                                      FX_DATETIMETYPE eDateTimeType) {
  if (wsSrcDateTime.IsEmpty() || wsPattern.IsEmpty()) {
    return false;
  }
  CFX_WideString wsDatePattern, wsTimePattern;
  IFX_Locale* pLocale = nullptr;
  FX_DATETIMETYPE eCategory =
      GetDateTimeFormat(wsPattern, pLocale, wsDatePattern, wsTimePattern);
  if (!pLocale) {
    return false;
  }
  if (eCategory == FX_DATETIMETYPE_Unknown) {
    if (eDateTimeType == FX_DATETIMETYPE_Time) {
      wsTimePattern = wsDatePattern;
      wsDatePattern.clear();
    }
    eCategory = eDateTimeType;
  }
  if (eCategory == FX_DATETIMETYPE_Unknown) {
    return false;
  }
  CFX_Unitime dt(0);
  int32_t iT = wsSrcDateTime.Find(L"T");
  if (iT < 0) {
    if (eCategory == FX_DATETIMETYPE_Date &&
        FX_DateFromCanonical(wsSrcDateTime, dt)) {
      return FX_FormatDateTime(dt, wsDatePattern, wsTimePattern, true, pLocale,
                               wsOutput);
    } else if (eCategory == FX_DATETIMETYPE_Time &&
               FX_TimeFromCanonical(wsSrcDateTime.AsStringC(), dt, pLocale)) {
      return FX_FormatDateTime(dt, wsDatePattern, wsTimePattern, true, pLocale,
                               wsOutput);
    }
  } else {
    CFX_WideString wsSrcDate(wsSrcDateTime.c_str(), iT);
    CFX_WideStringC wsSrcTime(wsSrcDateTime.c_str() + iT + 1,
                              wsSrcDateTime.GetLength() - iT - 1);
    if (wsSrcDate.IsEmpty() || wsSrcTime.IsEmpty()) {
      return false;
    }
    if (FX_DateFromCanonical(wsSrcDate, dt) &&
        FX_TimeFromCanonical(wsSrcTime, dt, pLocale)) {
      return FX_FormatDateTime(dt, wsDatePattern, wsTimePattern,
                               eCategory != FX_DATETIMETYPE_TimeDate, pLocale,
                               wsOutput);
    }
  }
  return false;
}
bool CFX_FormatString::FormatDateTime(const CFX_Unitime& dt,
                                      const CFX_WideString& wsPattern,
                                      CFX_WideString& wsOutput) {
  if (wsPattern.IsEmpty()) {
    return false;
  }
  CFX_WideString wsDatePattern, wsTimePattern;
  IFX_Locale* pLocale = nullptr;
  FX_DATETIMETYPE eCategory =
      GetDateTimeFormat(wsPattern, pLocale, wsDatePattern, wsTimePattern);
  if (!pLocale) {
    return false;
  }
  return FX_FormatDateTime(dt, wsPattern, wsTimePattern,
                           eCategory != FX_DATETIMETYPE_TimeDate, pLocale,
                           wsOutput);
}
bool CFX_FormatString::FormatZero(const CFX_WideString& wsPattern,
                                  CFX_WideString& wsOutput) {
  if (wsPattern.IsEmpty()) {
    return false;
  }
  CFX_WideString wsTextFormat;
  GetTextFormat(wsPattern, FX_WSTRC(L"zero"), wsTextFormat);
  int32_t iPattern = 0;
  const FX_WCHAR* pStrPattern = wsTextFormat.c_str();
  int32_t iLenPattern = wsTextFormat.GetLength();
  while (iPattern < iLenPattern) {
    if (pStrPattern[iPattern] == '\'') {
      wsOutput += FX_GetLiteralText(pStrPattern, iPattern, iLenPattern);
      iPattern++;
      continue;
    } else {
      wsOutput += pStrPattern[iPattern++];
      continue;
    }
  }
  return true;
}
bool CFX_FormatString::FormatNull(const CFX_WideString& wsPattern,
                                  CFX_WideString& wsOutput) {
  if (wsPattern.IsEmpty()) {
    return false;
  }
  CFX_WideString wsTextFormat;
  GetTextFormat(wsPattern, FX_WSTRC(L"null"), wsTextFormat);
  int32_t iPattern = 0;
  const FX_WCHAR* pStrPattern = wsTextFormat.c_str();
  int32_t iLenPattern = wsTextFormat.GetLength();
  while (iPattern < iLenPattern) {
    if (pStrPattern[iPattern] == '\'') {
      wsOutput += FX_GetLiteralText(pStrPattern, iPattern, iLenPattern);
      iPattern++;
      continue;
    } else {
      wsOutput += pStrPattern[iPattern++];
      continue;
    }
  }
  return true;
}
IFX_Locale* CFX_FormatString::GetPatternLocale(const CFX_WideString& wsLocale) {
  return m_pLocaleMgr->GetLocaleByName(wsLocale);
}
#define FXMATH_DECIMAL_SCALELIMIT 0x1c
#define FXMATH_DECIMAL_NEGMASK (0x80000000L)
#define FXMATH_DECIMAL_FORCEBOOL(x) (!(!(x)))
#define FXMATH_DECIMAL_MAKEFLAGS(NEG, SCALE) \
  (((SCALE) << 0x10) | ((NEG) ? FXMATH_DECIMAL_NEGMASK : 0))
#define FXMATH_DECIMAL_FLAGS2NEG(FLAGS) \
  FXMATH_DECIMAL_FORCEBOOL((FLAGS)&FXMATH_DECIMAL_NEGMASK)
#define FXMATH_DECIMAL_FLAGS2SCALE(FLAGS) \
  ((uint8_t)(((FLAGS) & ~FXMATH_DECIMAL_NEGMASK) >> 0x10))
#define FXMATH_DECIMAL_RSHIFT32BIT(x) ((x) >> 0x10 >> 0x10)
#define FXMATH_DECIMAL_LSHIFT32BIT(x) ((x) << 0x10 << 0x10)
static inline uint8_t fxmath_decimal_helper_div10(uint64_t& phi,
                                                  uint64_t& pmid,
                                                  uint64_t& plo) {
  uint8_t retVal;
  pmid += FXMATH_DECIMAL_LSHIFT32BIT(phi % 0xA);
  phi /= 0xA;
  plo += FXMATH_DECIMAL_LSHIFT32BIT(pmid % 0xA);
  pmid /= 0xA;
  retVal = plo % 0xA;
  plo /= 0xA;
  return retVal;
}
static inline uint8_t fxmath_decimal_helper_div10_any(uint64_t nums[],
                                                      uint8_t numcount) {
  uint8_t retVal = 0;
  for (int i = numcount - 1; i > 0; i--) {
    nums[i - 1] += FXMATH_DECIMAL_LSHIFT32BIT(nums[i] % 0xA);
    nums[i] /= 0xA;
  }
  if (numcount) {
    retVal = nums[0] % 0xA;
    nums[0] /= 0xA;
  }
  return retVal;
}
static inline void fxmath_decimal_helper_mul10(uint64_t& phi,
                                               uint64_t& pmid,
                                               uint64_t& plo) {
  plo *= 0xA;
  pmid = pmid * 0xA + FXMATH_DECIMAL_RSHIFT32BIT(plo);
  plo = (uint32_t)plo;
  phi = phi * 0xA + FXMATH_DECIMAL_RSHIFT32BIT(pmid);
  pmid = (uint32_t)pmid;
}
static inline void fxmath_decimal_helper_mul10_any(uint64_t nums[],
                                                   uint8_t numcount) {
  nums[0] *= 0xA;
  for (int i = 1; i < numcount; i++) {
    nums[i] = nums[i] * 0xA + FXMATH_DECIMAL_RSHIFT32BIT(nums[i - 1]);
    nums[i - 1] = (uint32_t)nums[i - 1];
  }
}
static inline void fxmath_decimal_helper_normalize(uint64_t& phi,
                                                   uint64_t& pmid,
                                                   uint64_t& plo) {
  phi += FXMATH_DECIMAL_RSHIFT32BIT(pmid);
  pmid = (uint32_t)pmid;
  pmid += FXMATH_DECIMAL_RSHIFT32BIT(plo);
  plo = (uint32_t)plo;
  phi += FXMATH_DECIMAL_RSHIFT32BIT(pmid);
  pmid = (uint32_t)pmid;
}
static inline void fxmath_decimal_helper_normalize_any(uint64_t nums[],
                                                       uint8_t len) {
  {
    for (int i = len - 2; i > 0; i--) {
      nums[i + 1] += FXMATH_DECIMAL_RSHIFT32BIT(nums[i]);
      nums[i] = (uint32_t)nums[i];
    }
  }
  {
    for (int i = 0; i < len - 1; i++) {
      nums[i + 1] += FXMATH_DECIMAL_RSHIFT32BIT(nums[i]);
      nums[i] = (uint32_t)nums[i];
    }
  }
}
static inline int8_t fxmath_decimal_helper_raw_compare(uint32_t hi1,
                                                       uint32_t mid1,
                                                       uint32_t lo1,
                                                       uint32_t hi2,
                                                       uint32_t mid2,
                                                       uint32_t lo2) {
  int8_t retVal = 0;
  if (!retVal) {
    retVal += (hi1 > hi2 ? 1 : (hi1 < hi2 ? -1 : 0));
  }
  if (!retVal) {
    retVal += (mid1 > mid2 ? 1 : (mid1 < mid2 ? -1 : 0));
  }
  if (!retVal) {
    retVal += (lo1 > lo2 ? 1 : (lo1 < lo2 ? -1 : 0));
  }
  return retVal;
}
static inline int8_t fxmath_decimal_helper_raw_compare_any(uint64_t a[],
                                                           uint8_t al,
                                                           uint64_t b[],
                                                           uint8_t bl) {
  int8_t retVal = 0;
  for (int i = std::max(al - 1, bl - 1); i >= 0; i--) {
    uint64_t l = (i >= al ? 0 : a[i]), r = (i >= bl ? 0 : b[i]);
    retVal += (l > r ? 1 : (l < r ? -1 : 0));
    if (retVal) {
      return retVal;
    }
  }
  return retVal;
}
static inline void fxmath_decimal_helper_dec_any(uint64_t a[], uint8_t al) {
  for (int i = 0; i < al; i++) {
    if (a[i]--) {
      return;
    }
  }
}
static inline void fxmath_decimal_helper_inc_any(uint64_t a[], uint8_t al) {
  for (int i = 0; i < al; i++) {
    a[i]++;
    if ((uint32_t)a[i] == a[i]) {
      return;
    }
    a[i] = 0;
  }
}
static inline void fxmath_decimal_helper_raw_mul(uint64_t a[],
                                                 uint8_t al,
                                                 uint64_t b[],
                                                 uint8_t bl,
                                                 uint64_t c[],
                                                 uint8_t cl) {
  ASSERT(al + bl <= cl);
  {
    for (int i = 0; i < cl; i++) {
      c[i] = 0;
    }
  }
  {
    for (int i = 0; i < al; i++) {
      for (int j = 0; j < bl; j++) {
        uint64_t m = (uint64_t)a[i] * b[j];
        c[i + j] += (uint32_t)m;
        c[i + j + 1] += FXMATH_DECIMAL_RSHIFT32BIT(m);
      }
    }
  }
  {
    for (int i = 0; i < cl - 1; i++) {
      c[i + 1] += FXMATH_DECIMAL_RSHIFT32BIT(c[i]);
      c[i] = (uint32_t)c[i];
    }
  }
  {
    for (int i = 0; i < cl; i++) {
      c[i] = (uint32_t)c[i];
    }
  }
}
static inline void fxmath_decimal_helper_raw_div(uint64_t a[],
                                                 uint8_t al,
                                                 uint64_t b[],
                                                 uint8_t bl,
                                                 uint64_t c[],
                                                 uint8_t cl) {
  int i;
  for (i = 0; i < cl; i++) {
    c[i] = 0;
  }
  uint64_t left[16] = {0}, right[16] = {0};
  left[0] = 0;
  for (i = 0; i < al; i++) {
    right[i] = a[i];
  }
  uint64_t tmp[16];
  while (fxmath_decimal_helper_raw_compare_any(left, al, right, al) <= 0) {
    uint64_t cur[16];
    for (i = 0; i < al; i++) {
      cur[i] = left[i] + right[i];
    }
    for (i = al - 1; i >= 0; i--) {
      if (i) {
        cur[i - 1] += FXMATH_DECIMAL_LSHIFT32BIT(cur[i] % 2);
      }
      cur[i] /= 2;
    }
    fxmath_decimal_helper_raw_mul(cur, al, b, bl, tmp, 16);
    switch (fxmath_decimal_helper_raw_compare_any(tmp, 16, a, al)) {
      case -1:
        for (i = 0; i < 16; i++) {
          left[i] = cur[i];
        }
        left[0]++;
        fxmath_decimal_helper_normalize_any(left, al);
        break;
      case 1:
        for (i = 0; i < 16; i++) {
          right[i] = cur[i];
        }
        fxmath_decimal_helper_dec_any(right, al);
        break;
      case 0:
        for (i = 0; i < std::min(al, cl); i++) {
          c[i] = cur[i];
        }
        return;
    }
  }
  for (i = 0; i < std::min(al, cl); i++) {
    c[i] = left[i];
  }
}
static inline bool fxmath_decimal_helper_outofrange(uint64_t a[],
                                                    uint8_t al,
                                                    uint8_t goal) {
  for (int i = goal; i < al; i++) {
    if (a[i]) {
      return true;
    }
  }
  return false;
}
static inline void fxmath_decimal_helper_shrinkintorange(uint64_t a[],
                                                         uint8_t al,
                                                         uint8_t goal,
                                                         uint8_t& scale) {
  bool bRoundUp = false;
  while (scale != 0 && (scale > FXMATH_DECIMAL_SCALELIMIT ||
                        fxmath_decimal_helper_outofrange(a, al, goal))) {
    bRoundUp = fxmath_decimal_helper_div10_any(a, al) >= 5;
    scale--;
  }
  if (bRoundUp) {
    fxmath_decimal_helper_normalize_any(a, goal);
    fxmath_decimal_helper_inc_any(a, goal);
  }
}
static inline void fxmath_decimal_helper_truncate(uint64_t& phi,
                                                  uint64_t& pmid,
                                                  uint64_t& plo,
                                                  uint8_t& scale,
                                                  uint8_t minscale = 0) {
  while (scale > minscale) {
    uint64_t thi = phi, tmid = pmid, tlo = plo;
    if (fxmath_decimal_helper_div10(thi, tmid, tlo) != 0) {
      break;
    }
    phi = thi, pmid = tmid, plo = tlo;
    scale--;
  }
}
CFX_Decimal::CFX_Decimal() {
  m_uLo = m_uMid = m_uHi = m_uFlags = 0;
}
CFX_Decimal::CFX_Decimal(uint64_t val) {
  m_uLo = (uint32_t)val;
  m_uMid = (uint32_t)FXMATH_DECIMAL_RSHIFT32BIT(val);
  m_uHi = 0;
  m_uFlags = 0;
}
CFX_Decimal::CFX_Decimal(uint32_t val) {
  m_uLo = (uint32_t)val;
  m_uMid = m_uHi = 0;
  m_uFlags = 0;
}
CFX_Decimal::CFX_Decimal(uint32_t lo,
                         uint32_t mid,
                         uint32_t hi,
                         bool neg,
                         uint8_t scale) {
  scale = (scale > FXMATH_DECIMAL_SCALELIMIT ? 0 : scale);
  m_uLo = lo;
  m_uMid = mid;
  m_uHi = hi;
  m_uFlags = FXMATH_DECIMAL_MAKEFLAGS(neg && IsNotZero(), scale);
}
CFX_Decimal::CFX_Decimal(int32_t val) {
  if (val >= 0) {
    *this = CFX_Decimal((uint32_t)val);
  } else {
    *this = CFX_Decimal((uint32_t)-val);
    SetNegate();
  }
}
CFX_Decimal::CFX_Decimal(int64_t val) {
  if (val >= 0) {
    *this = CFX_Decimal((uint64_t)val);
  } else {
    *this = CFX_Decimal((uint64_t)-val);
    SetNegate();
  }
}
CFX_Decimal::CFX_Decimal(FX_FLOAT val, uint8_t scale) {
  FX_FLOAT newval = fabs(val);
  uint64_t phi, pmid, plo;
  plo = (uint64_t)newval;
  pmid = (uint64_t)(newval / 1e32);
  phi = (uint64_t)(newval / 1e64);
  newval = FXSYS_fmod(newval, 1.0f);
  for (uint8_t iter = 0; iter < scale; iter++) {
    fxmath_decimal_helper_mul10(phi, pmid, plo);
    newval *= 10;
    plo += (uint64_t)newval;
    newval = FXSYS_fmod(newval, 1.0f);
  }
  plo += FXSYS_round(newval);
  fxmath_decimal_helper_normalize(phi, pmid, plo);
  m_uHi = (uint32_t)phi;
  m_uMid = (uint32_t)pmid;
  m_uLo = (uint32_t)plo;
  m_uFlags = FXMATH_DECIMAL_MAKEFLAGS(val < 0 && IsNotZero(), scale);
}
CFX_Decimal::CFX_Decimal(const CFX_WideStringC& strObj) {
  const FX_WCHAR* str = strObj.c_str();
  const FX_WCHAR* strBound = str + strObj.GetLength();
  bool pointmet = 0;
  bool negmet = 0;
  uint8_t scale = 0;
  m_uHi = m_uMid = m_uLo = 0;
  while (str != strBound && *str == ' ') {
    str++;
  }
  if (str != strBound && *str == '-') {
    negmet = 1;
    str++;
  } else if (str != strBound && *str == '+') {
    str++;
  }
  while (str != strBound && ((*str >= '0' && *str <= '9') || *str == '.') &&
         scale < FXMATH_DECIMAL_SCALELIMIT) {
    if (*str == '.') {
      if (pointmet) {
        goto cont;
      }
      pointmet = 1;
    } else {
      m_uHi = m_uHi * 0xA + FXMATH_DECIMAL_RSHIFT32BIT((uint64_t)m_uMid * 0xA);
      m_uMid = m_uMid * 0xA + FXMATH_DECIMAL_RSHIFT32BIT((uint64_t)m_uLo * 0xA);
      m_uLo = m_uLo * 0xA + (*str - '0');
      if (pointmet) {
        scale++;
      }
    }
  cont:
    str++;
  }
  m_uFlags = FXMATH_DECIMAL_MAKEFLAGS(negmet && IsNotZero(), scale);
}

CFX_Decimal::CFX_Decimal(const CFX_ByteStringC& strObj) {
  *this = CFX_Decimal(CFX_WideString::FromLocal(strObj).AsStringC());
}

CFX_Decimal::operator CFX_WideString() const {
  CFX_WideString retString;
  CFX_WideString tmpbuf;
  uint64_t phi = m_uHi, pmid = m_uMid, plo = m_uLo;
  while (phi || pmid || plo) {
    tmpbuf += fxmath_decimal_helper_div10(phi, pmid, plo) + '0';
  }
  uint8_t outputlen = (uint8_t)tmpbuf.GetLength();
  uint8_t scale = (uint8_t)FXMATH_DECIMAL_FLAGS2SCALE(m_uFlags);
  while (scale >= outputlen) {
    tmpbuf += '0';
    outputlen++;
  }
  if (FXMATH_DECIMAL_FLAGS2NEG(m_uFlags) && IsNotZero()) {
    retString += '-';
  }
  for (uint8_t idx = 0; idx < outputlen; idx++) {
    if (idx == (outputlen - scale) && scale != 0) {
      retString += '.';
    }
    retString += tmpbuf[outputlen - 1 - idx];
  }
  return retString;
}
CFX_Decimal::operator double() const {
  double pow = (double)(1 << 16) * (1 << 16);
  double base =
      ((double)m_uHi) * pow * pow + ((double)m_uMid) * pow + ((double)m_uLo);
  int8_t scale = FXMATH_DECIMAL_FLAGS2SCALE(m_uFlags);
  bool bNeg = FXMATH_DECIMAL_FLAGS2NEG(m_uFlags);
  return (bNeg ? -1 : 1) * base * ::pow(10.0, -scale);
}
void CFX_Decimal::SetScale(uint8_t newscale) {
  uint8_t oldscale = FXMATH_DECIMAL_FLAGS2SCALE(m_uFlags);
  if (newscale > oldscale) {
    uint64_t phi = m_uHi, pmid = m_uMid, plo = m_uLo;
    for (uint8_t iter = 0; iter < newscale - oldscale; iter++) {
      fxmath_decimal_helper_mul10(phi, pmid, plo);
    }
    m_uHi = (uint32_t)phi;
    m_uMid = (uint32_t)pmid;
    m_uLo = (uint32_t)plo;
    m_uFlags = FXMATH_DECIMAL_MAKEFLAGS(
        FXMATH_DECIMAL_FLAGS2NEG(m_uFlags) && IsNotZero(), newscale);
  } else if (newscale < oldscale) {
    uint64_t phi, pmid, plo;
    phi = 0, pmid = 0, plo = 5;
    {
      for (uint8_t iter = 0; iter < oldscale - newscale - 1; iter++) {
        fxmath_decimal_helper_mul10(phi, pmid, plo);
      }
    }
    phi += m_uHi;
    pmid += m_uMid;
    plo += m_uLo;
    fxmath_decimal_helper_normalize(phi, pmid, plo);
    {
      for (uint8_t iter = 0; iter < oldscale - newscale; iter++) {
        fxmath_decimal_helper_div10(phi, pmid, plo);
      }
    }
    m_uHi = (uint32_t)phi;
    m_uMid = (uint32_t)pmid;
    m_uLo = (uint32_t)plo;
    m_uFlags = FXMATH_DECIMAL_MAKEFLAGS(
        FXMATH_DECIMAL_FLAGS2NEG(m_uFlags) && IsNotZero(), newscale);
  }
}
uint8_t CFX_Decimal::GetScale() {
  uint8_t oldscale = FXMATH_DECIMAL_FLAGS2SCALE(m_uFlags);
  return oldscale;
}
void CFX_Decimal::SetAbs() {
  m_uFlags &= ~FXMATH_DECIMAL_NEGMASK;
}
void CFX_Decimal::SetNegate() {
  if (IsNotZero()) {
    m_uFlags ^= FXMATH_DECIMAL_NEGMASK;
  }
}
void CFX_Decimal::FloorOrCeil(bool bFloor) {
  uint64_t nums[3] = {m_uLo, m_uMid, m_uHi};
  bool bDataLoss = false;
  for (int i = FXMATH_DECIMAL_FLAGS2SCALE(m_uFlags); i > 0; i--) {
    bDataLoss = fxmath_decimal_helper_div10_any(nums, 3) || bDataLoss;
  }
  if (bDataLoss && (bFloor ? FXMATH_DECIMAL_FLAGS2NEG(m_uFlags)
                           : !FXMATH_DECIMAL_FLAGS2NEG(m_uFlags))) {
    fxmath_decimal_helper_inc_any(nums, 3);
  }
  m_uHi = (uint32_t)nums[2];
  m_uMid = (uint32_t)nums[1];
  m_uLo = (uint32_t)nums[0];
  m_uFlags = FXMATH_DECIMAL_MAKEFLAGS(
      FXMATH_DECIMAL_FLAGS2NEG(m_uFlags) && IsNotZero(), 0);
}
void CFX_Decimal::SetFloor() {
  FloorOrCeil(true);
}
void CFX_Decimal::SetCeiling() {
  FloorOrCeil(false);
}
void CFX_Decimal::SetTruncate() {
  FloorOrCeil(!FXMATH_DECIMAL_FLAGS2NEG(m_uFlags));
}
void CFX_Decimal::Swap(CFX_Decimal& val) {
  uint32_t tmp;
  tmp = m_uHi;
  m_uHi = val.m_uHi;
  val.m_uHi = tmp;
  tmp = m_uMid;
  m_uMid = val.m_uMid;
  val.m_uMid = tmp;
  tmp = m_uLo;
  m_uLo = val.m_uLo;
  val.m_uLo = tmp;
  tmp = m_uFlags;
  m_uFlags = val.m_uFlags;
  val.m_uFlags = tmp;
}
int8_t CFX_Decimal::Compare(const CFX_Decimal& val) const {
  CFX_Decimal lhs = *this, rhs = val;
  int8_t retVal = 0;
  if (FXMATH_DECIMAL_FLAGS2SCALE(lhs.m_uFlags) !=
      FXMATH_DECIMAL_FLAGS2SCALE(rhs.m_uFlags)) {
    uint8_t scale = std::min(FXMATH_DECIMAL_FLAGS2SCALE(lhs.m_uFlags),
                             FXMATH_DECIMAL_FLAGS2SCALE(rhs.m_uFlags));
    lhs.SetScale(scale);
    rhs.SetScale(scale);
  }
  retVal = -(FXMATH_DECIMAL_FLAGS2NEG(lhs.m_uFlags) -
             FXMATH_DECIMAL_FLAGS2NEG(rhs.m_uFlags));
  if (retVal) {
    return retVal;
  }
  retVal = fxmath_decimal_helper_raw_compare(lhs.m_uHi, lhs.m_uMid, lhs.m_uLo,
                                             rhs.m_uHi, rhs.m_uMid, rhs.m_uLo);
  return (FXMATH_DECIMAL_FLAGS2NEG(lhs.m_uFlags) ? -retVal : retVal);
}
CFX_Decimal CFX_Decimal::AddOrMinus(const CFX_Decimal& val,
                                    bool isAdding) const {
  CFX_Decimal lhs = *this, rhs = val;
  if (FXMATH_DECIMAL_FLAGS2SCALE(lhs.m_uFlags) !=
      FXMATH_DECIMAL_FLAGS2SCALE(rhs.m_uFlags)) {
    uint8_t scale = std::max(FXMATH_DECIMAL_FLAGS2SCALE(lhs.m_uFlags),
                             FXMATH_DECIMAL_FLAGS2SCALE(rhs.m_uFlags));
    lhs.SetScale(scale);
    rhs.SetScale(scale);
  }
  if (!isAdding) {
    rhs.SetNegate();
  }
  if (FXMATH_DECIMAL_FLAGS2NEG(lhs.m_uFlags) ==
      FXMATH_DECIMAL_FLAGS2NEG(rhs.m_uFlags)) {
    uint64_t phi = lhs.m_uHi, pmid = lhs.m_uMid, plo = lhs.m_uLo;
    phi += rhs.m_uHi;
    pmid += rhs.m_uMid;
    plo += rhs.m_uLo;
    fxmath_decimal_helper_normalize(phi, pmid, plo);
    if (FXMATH_DECIMAL_RSHIFT32BIT(phi) &&
        FXMATH_DECIMAL_FLAGS2SCALE(lhs.m_uFlags) != 0) {
      fxmath_decimal_helper_div10(phi, pmid, plo);
      lhs.m_uFlags = FXMATH_DECIMAL_MAKEFLAGS(
          FXMATH_DECIMAL_FLAGS2NEG(lhs.m_uFlags),
          FXMATH_DECIMAL_FLAGS2SCALE(lhs.m_uFlags) - 1);
    }
    lhs.m_uHi = (uint32_t)phi;
    lhs.m_uMid = (uint32_t)pmid;
    lhs.m_uLo = (uint32_t)plo;
    return lhs;
  } else {
    if (fxmath_decimal_helper_raw_compare(lhs.m_uHi, lhs.m_uMid, lhs.m_uLo,
                                          rhs.m_uHi, rhs.m_uMid,
                                          rhs.m_uLo) < 0) {
      lhs.Swap(rhs);
    }
    lhs.m_uHi -= rhs.m_uHi;
    if (lhs.m_uMid < rhs.m_uMid) {
      lhs.m_uHi--;
    }
    lhs.m_uMid -= rhs.m_uMid;
    if (lhs.m_uLo < rhs.m_uLo) {
      if (!lhs.m_uMid) {
        lhs.m_uHi--;
      }
      lhs.m_uMid--;
    }
    lhs.m_uLo -= rhs.m_uLo;
    return lhs;
  }
}
CFX_Decimal CFX_Decimal::Multiply(const CFX_Decimal& val) const {
  uint64_t a[3] = {m_uLo, m_uMid, m_uHi},
           b[3] = {val.m_uLo, val.m_uMid, val.m_uHi};
  uint64_t c[6];
  fxmath_decimal_helper_raw_mul(a, 3, b, 3, c, 6);
  bool neg = FXMATH_DECIMAL_FLAGS2NEG(m_uFlags) ^
             FXMATH_DECIMAL_FLAGS2NEG(val.m_uFlags);
  uint8_t scale = FXMATH_DECIMAL_FLAGS2SCALE(m_uFlags) +
                  FXMATH_DECIMAL_FLAGS2SCALE(val.m_uFlags);
  fxmath_decimal_helper_shrinkintorange(c, 6, 3, scale);
  return CFX_Decimal((uint32_t)c[0], (uint32_t)c[1], (uint32_t)c[2], neg,
                     scale);
}
CFX_Decimal CFX_Decimal::Divide(const CFX_Decimal& val) const {
  if (!val.IsNotZero()) {
    return CFX_Decimal();
  }
  bool neg = FXMATH_DECIMAL_FLAGS2NEG(m_uFlags) ^
             FXMATH_DECIMAL_FLAGS2NEG(val.m_uFlags);
  uint64_t a[7] = {m_uLo, m_uMid, m_uHi},
           b[3] = {val.m_uLo, val.m_uMid, val.m_uHi}, c[7] = {0};
  uint8_t scale = 0;
  if (FXMATH_DECIMAL_FLAGS2SCALE(m_uFlags) <
      FXMATH_DECIMAL_FLAGS2SCALE(val.m_uFlags)) {
    for (int i = FXMATH_DECIMAL_FLAGS2SCALE(val.m_uFlags) -
                 FXMATH_DECIMAL_FLAGS2SCALE(m_uFlags);
         i > 0; i--) {
      fxmath_decimal_helper_mul10_any(a, 7);
    }
  } else {
    scale = FXMATH_DECIMAL_FLAGS2SCALE(m_uFlags) -
            FXMATH_DECIMAL_FLAGS2SCALE(val.m_uFlags);
  }
  uint8_t minscale = scale;
  if (!IsNotZero()) {
    return CFX_Decimal(0, 0, 0, 0, minscale);
  }
  while (!a[6]) {
    fxmath_decimal_helper_mul10_any(a, 7);
    scale++;
  }
  fxmath_decimal_helper_div10_any(a, 7);
  scale--;
  fxmath_decimal_helper_raw_div(a, 6, b, 3, c, 7);
  fxmath_decimal_helper_shrinkintorange(c, 6, 3, scale);
  fxmath_decimal_helper_truncate(c[2], c[1], c[0], scale, minscale);
  return CFX_Decimal((uint32_t)c[0], (uint32_t)c[1], (uint32_t)c[2], neg,
                     scale);
}
CFX_Decimal CFX_Decimal::Modulus(const CFX_Decimal& val) const {
  CFX_Decimal lhs = *this, rhs_abs = val;
  rhs_abs.SetAbs();
  if (!rhs_abs.IsNotZero()) {
    return *this;
  }
  while (true) {
    CFX_Decimal lhs_abs = lhs;
    lhs_abs.SetAbs();
    if (lhs_abs < rhs_abs) {
      break;
    }
    CFX_Decimal quot = lhs / rhs_abs;
    quot.SetTruncate();
    lhs = lhs - quot * rhs_abs;
  }
  return lhs;
}
bool CFX_Decimal::operator==(const CFX_Decimal& val) const {
  return Compare(val) == 0;
}
bool CFX_Decimal::operator<=(const CFX_Decimal& val) const {
  return Compare(val) <= 0;
}
bool CFX_Decimal::operator>=(const CFX_Decimal& val) const {
  return Compare(val) >= 0;
}
bool CFX_Decimal::operator!=(const CFX_Decimal& val) const {
  return Compare(val) != 0;
}
bool CFX_Decimal::operator<(const CFX_Decimal& val) const {
  return Compare(val) < 0;
}
bool CFX_Decimal::operator>(const CFX_Decimal& val) const {
  return Compare(val) > 0;
}
CFX_Decimal CFX_Decimal::operator+(const CFX_Decimal& val) const {
  return AddOrMinus(val, true);
}
CFX_Decimal CFX_Decimal::operator-(const CFX_Decimal& val) const {
  return AddOrMinus(val, false);
}
CFX_Decimal CFX_Decimal::operator*(const CFX_Decimal& val) const {
  return Multiply(val);
}
CFX_Decimal CFX_Decimal::operator/(const CFX_Decimal& val) const {
  return Divide(val);
}
CFX_Decimal CFX_Decimal::operator%(const CFX_Decimal& val) const {
  return Modulus(val);
}