Util.h File Reference

#include "Define.h"
#include "Errors.h"
#include "Random.h"
#include <algorithm>
#include <string>
#include <vector>
#include <list>
#include <map>
#include <stdarg.h>
#include <cstring>
#include <ctime>

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Classes
struct	Finder< T, S >
class	Tokenizer
class	HookList< T >
class	flag128

Enumerations
enum	ComparisionType {   COMP_TYPE_EQ = 0, COMP_TYPE_HIGH, COMP_TYPE_LOW, COMP_TYPE_HIGH_EQ,   COMP_TYPE_LOW_EQ, COMP_TYPE_MAX }

Functions
TC_COMMON_API void	stripLineInvisibleChars (std::string &src)
TC_COMMON_API int64	MoneyStringToMoney (const std::string &moneyString)
TC_COMMON_API struct tm *	localtime_r (const time_t *time, struct tm *result)
TC_COMMON_API std::string	secsToTimeString (uint64 timeInSecs, bool shortText=false, bool hoursOnly=false)
TC_COMMON_API uint32	TimeStringToSecs (const std::string &timestring)
TC_COMMON_API std::string	TimeToTimestampStr (time_t t)
void	ApplyPercentModFloatVar (float &var, float val, bool apply)
template<class T , class U >
T	CalculatePct (T base, U pct)
template<class T , class U >
T	AddPct (T &base, U pct)
template<class T , class U >
T	ApplyPct (T &base, U pct)
template<class T >
T	RoundToInterval (T &num, T floor, T ceil)
TC_COMMON_API bool	Utf8toWStr (const std::string &utf8str, std::wstring &wstr)
TC_COMMON_API bool	Utf8toWStr (char const *utf8str, size_t csize, wchar_t *wstr, size_t &wsize)
bool	Utf8toWStr (const std::string &utf8str, wchar_t *wstr, size_t &wsize)
TC_COMMON_API bool	WStrToUtf8 (std::wstring const &wstr, std::string &utf8str)
TC_COMMON_API bool	WStrToUtf8 (wchar_t *wstr, size_t size, std::string &utf8str)
TC_COMMON_API size_t	utf8length (std::string &utf8str)
TC_COMMON_API void	utf8truncate (std::string &utf8str, size_t len)
bool	isBasicLatinCharacter (wchar_t wchar)
bool	isExtendedLatinCharacter (wchar_t wchar)
bool	isCyrillicCharacter (wchar_t wchar)
bool	isEastAsianCharacter (wchar_t wchar)
bool	isNumeric (wchar_t wchar)
bool	isNumeric (char c)
bool	isNumeric (char const *str)
bool	isNumericOrSpace (wchar_t wchar)
bool	isBasicLatinString (const std::wstring &wstr, bool numericOrSpace)
bool	isExtendedLatinString (const std::wstring &wstr, bool numericOrSpace)
bool	isCyrillicString (const std::wstring &wstr, bool numericOrSpace)
bool	isEastAsianString (const std::wstring &wstr, bool numericOrSpace)
wchar_t	wcharToUpper (wchar_t wchar)
wchar_t	wcharToUpperOnlyLatin (wchar_t wchar)
wchar_t	wcharToLower (wchar_t wchar)
void	wstrToUpper (std::wstring &str)
void	wstrToLower (std::wstring &str)
TC_COMMON_API std::wstring	GetMainPartOfName (std::wstring const &wname, uint32 declension)
TC_COMMON_API bool	utf8ToConsole (const std::string &utf8str, std::string &conStr)
TC_COMMON_API bool	consoleToUtf8 (const std::string &conStr, std::string &utf8str)
TC_COMMON_API bool	Utf8FitTo (const std::string &str, std::wstring const &search)
TC_COMMON_API void	utf8printf (FILE *out, const char *str,...)
TC_COMMON_API void	vutf8printf (FILE *out, const char *str, va_list *ap)
TC_COMMON_API bool	Utf8ToUpperOnlyLatin (std::string &utf8String)
TC_COMMON_API bool	IsIPAddress (char const *ipaddress)
	Check if the string is a valid ip address representation. More...
TC_COMMON_API uint32	CreatePIDFile (std::string const &filename)
	create PID file More...
TC_COMMON_API uint32	GetPID ()
TC_COMMON_API std::string	ByteArrayToHexStr (uint8 const *bytes, uint32 length, bool reverse=false)
TC_COMMON_API void	HexStrToByteArray (std::string const &str, uint8 *out, bool reverse=false)
TC_COMMON_API bool	StringToBool (std::string const &str)
template<class T >
bool	CompareValues (ComparisionType type, T val1, T val2)

Enumeration Type Documentation

enum ComparisionType

Enumerator
COMP_TYPE_EQ
COMP_TYPE_HIGH
COMP_TYPE_LOW
COMP_TYPE_HIGH_EQ
COMP_TYPE_LOW_EQ
COMP_TYPE_MAX

{
 COMP_TYPE_EQ = 0,
 COMP_TYPE_HIGH,
 COMP_TYPE_LOW,
 COMP_TYPE_HIGH_EQ,
 COMP_TYPE_LOW_EQ,
 COMP_TYPE_MAX
};

Function Documentation

template<class T , class U >

T AddPct ( T &  base, U  pct  )

inline

{
 return base += CalculatePct(base, pct);
}

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template<class T , class U >

T ApplyPct ( T &  base, U  pct  )

inline

{
 return base = CalculatePct(base, pct);
}

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void ApplyPercentModFloatVar ( float &  var, float  val, bool  apply  )

inline

{
 if (val == -100.0f) // prevent set var to zero
 val = -99.99f;
 var *= (apply ? (100.0f + val) / 100.0f : 100.0f / (100.0f + val));
}

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TC_COMMON_API std::string ByteArrayToHexStr	(	uint8 const *	bytes,
		uint32	length,
		bool	reverse = false
	)

{
 int32 init = 0;
 int32 end = arrayLen;
 int8 op = 1;

 if (reverse)
 {
 init = arrayLen - 1;
 end = -1;
 op = -1;
 }

 std::ostringstream ss;
 for (int32 i = init; i != end; i += op)
 {
 char buffer[4];
 sprintf(buffer, "%02X", bytes[i]);
 ss << buffer;
 }

 return ss.str();
}

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template<class T , class U >

T CalculatePct ( T  base, U  pct  )

inline

{
 return T(base * static_cast<float>(pct) / 100.0f);
}

template<class T >

bool CompareValues	(	ComparisionType	type,
		T	val1,
		T	val2
	)

{
 switch (type)
 {
 case COMP_TYPE_EQ:
 return val1 == val2;
 case COMP_TYPE_HIGH:
 return val1 > val2;
 case COMP_TYPE_LOW:
 return val1 < val2;
 case COMP_TYPE_HIGH_EQ:
 return val1 >= val2;
 case COMP_TYPE_LOW_EQ:
 return val1 <= val2;
 default:
 // incorrect parameter
 ABORT();
 return false;
 }
}

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TC_COMMON_API bool consoleToUtf8	(	const std::string &	conStr,
		std::string &	utf8str
	)

{
#if PLATFORM == PLATFORM_WINDOWS
 std::wstring wstr;
 wstr.resize(conStr.size());
 OemToCharBuffW(&conStr[0], &wstr[0], uint32(conStr.size()));

 return WStrToUtf8(wstr, utf8str);
#else
 // not implemented yet
 utf8str = conStr;
 return true;
#endif
}

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TC_COMMON_API uint32 CreatePIDFile

(

std::string const &

filename

)

create PID file

{
 FILE* pid_file = fopen(filename.c_str(), "w");
 if (pid_file == NULL)
 return 0;

 uint32 pid = GetPID();

 fprintf(pid_file, "%u", pid);
 fclose(pid_file);

 return pid;
}

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TC_COMMON_API std::wstring GetMainPartOfName	(	std::wstring const &	wname,
		uint32	declension
	)

{
 // supported only Cyrillic cases
 if (wname.size() < 1 || !isCyrillicCharacter(wname[0]) || declension > 5)
 return wname;

 // Important: end length must be <= MAX_INTERNAL_PLAYER_NAME-MAX_PLAYER_NAME (3 currently)

 static wchar_t const a_End[] = { wchar_t(1), wchar_t(0x0430), wchar_t(0x0000)};
 static wchar_t const o_End[] = { wchar_t(1), wchar_t(0x043E), wchar_t(0x0000)};
 static wchar_t const ya_End[] = { wchar_t(1), wchar_t(0x044F), wchar_t(0x0000)};
 static wchar_t const ie_End[] = { wchar_t(1), wchar_t(0x0435), wchar_t(0x0000)};
 static wchar_t const i_End[] = { wchar_t(1), wchar_t(0x0438), wchar_t(0x0000)};
 static wchar_t const yeru_End[] = { wchar_t(1), wchar_t(0x044B), wchar_t(0x0000)};
 static wchar_t const u_End[] = { wchar_t(1), wchar_t(0x0443), wchar_t(0x0000)};
 static wchar_t const yu_End[] = { wchar_t(1), wchar_t(0x044E), wchar_t(0x0000)};
 static wchar_t const oj_End[] = { wchar_t(2), wchar_t(0x043E), wchar_t(0x0439), wchar_t(0x0000)};
 static wchar_t const ie_j_End[] = { wchar_t(2), wchar_t(0x0435), wchar_t(0x0439), wchar_t(0x0000)};
 static wchar_t const io_j_End[] = { wchar_t(2), wchar_t(0x0451), wchar_t(0x0439), wchar_t(0x0000)};
 static wchar_t const o_m_End[] = { wchar_t(2), wchar_t(0x043E), wchar_t(0x043C), wchar_t(0x0000)};
 static wchar_t const io_m_End[] = { wchar_t(2), wchar_t(0x0451), wchar_t(0x043C), wchar_t(0x0000)};
 static wchar_t const ie_m_End[] = { wchar_t(2), wchar_t(0x0435), wchar_t(0x043C), wchar_t(0x0000)};
 static wchar_t const soft_End[] = { wchar_t(1), wchar_t(0x044C), wchar_t(0x0000)};
 static wchar_t const j_End[] = { wchar_t(1), wchar_t(0x0439), wchar_t(0x0000)};

 static wchar_t const* const dropEnds[6][8] = {
 { &a_End[1], &o_End[1], &ya_End[1], &ie_End[1], &soft_End[1], &j_End[1], NULL, NULL },
 { &a_End[1], &ya_End[1], &yeru_End[1], &i_End[1], NULL, NULL, NULL, NULL },
 { &ie_End[1], &u_End[1], &yu_End[1], &i_End[1], NULL, NULL, NULL, NULL },
 { &u_End[1], &yu_End[1], &o_End[1], &ie_End[1], &soft_End[1], &ya_End[1], &a_End[1], NULL },
 { &oj_End[1], &io_j_End[1], &ie_j_End[1], &o_m_End[1], &io_m_End[1], &ie_m_End[1], &yu_End[1], NULL },
 { &ie_End[1], &i_End[1], NULL, NULL, NULL, NULL, NULL, NULL }
 };

 for (wchar_t const* const* itr = &dropEnds[declension][0]; *itr; ++itr)
 {
 size_t len = size_t((*itr)[-1]); // get length from string size field

 if (wname.substr(wname.size()-len, len)==*itr)
 return wname.substr(0, wname.size()-len);
 }

 return wname;
}

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TC_COMMON_API uint32 GetPID

(

)

{
#ifdef _WIN32
 DWORD pid = GetCurrentProcessId();
#else
 pid_t pid = getpid();
#endif

 return uint32(pid);
}

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TC_COMMON_API void HexStrToByteArray	(	std::string const &	str,
		uint8 *	out,
		bool	reverse = false
	)

{
 // string must have even number of characters
 if (str.length() & 1)
 return;

 int32 init = 0;
 int32 end = int32(str.length());
 int8 op = 1;

 if (reverse)
 {
 init = int32(str.length() - 2);
 end = -2;
 op = -1;
 }

 uint32 j = 0;
 for (int32 i = init; i != end; i += 2 * op)
 {
 char buffer[3] = { str[i], str[i + 1], '\0' };
 out[j++] = uint8(strtoul(buffer, NULL, 16));
 }
}

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bool isBasicLatinCharacter ( wchar_t  wchar )

inline

{
 if (wchar >= L'a' && wchar <= L'z') // LATIN SMALL LETTER A - LATIN SMALL LETTER Z
 return true;
 if (wchar >= L'A' && wchar <= L'Z') // LATIN CAPITAL LETTER A - LATIN CAPITAL LETTER Z
 return true;
 return false;
}

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bool isBasicLatinString ( const std::wstring &  wstr, bool  numericOrSpace  )

inline

{
 for (size_t i = 0; i < wstr.size(); ++i)
 if (!isBasicLatinCharacter(wstr[i]) && (!numericOrSpace || !isNumericOrSpace(wstr[i])))
 return false;
 return true;
}

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bool isCyrillicCharacter ( wchar_t  wchar )

inline

{
 if (wchar >= 0x0410 && wchar <= 0x044F) // CYRILLIC CAPITAL LETTER A - CYRILLIC SMALL LETTER YA
 return true;
 if (wchar == 0x0401 || wchar == 0x0451) // CYRILLIC CAPITAL LETTER IO, CYRILLIC SMALL LETTER IO
 return true;
 return false;
}

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bool isCyrillicString ( const std::wstring &  wstr, bool  numericOrSpace  )

inline

{
 for (size_t i = 0; i < wstr.size(); ++i)
 if (!isCyrillicCharacter(wstr[i]) && (!numericOrSpace || !isNumericOrSpace(wstr[i])))
 return false;
 return true;
}

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bool isEastAsianCharacter ( wchar_t  wchar )

inline

{
 if (wchar >= 0x1100 && wchar <= 0x11F9) // Hangul Jamo
 return true;
 if (wchar >= 0x3041 && wchar <= 0x30FF) // Hiragana + Katakana
 return true;
 if (wchar >= 0x3131 && wchar <= 0x318E) // Hangul Compatibility Jamo
 return true;
 if (wchar >= 0x31F0 && wchar <= 0x31FF) // Katakana Phonetic Ext.
 return true;
 if (wchar >= 0x3400 && wchar <= 0x4DB5) // CJK Ideographs Ext. A
 return true;
 if (wchar >= 0x4E00 && wchar <= 0x9FC3) // Unified CJK Ideographs
 return true;
 if (wchar >= 0xAC00 && wchar <= 0xD7A3) // Hangul Syllables
 return true;
 if (wchar >= 0xFF01 && wchar <= 0xFFEE) // Halfwidth forms
 return true;
 return false;
}

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bool isEastAsianString ( const std::wstring &  wstr, bool  numericOrSpace  )

inline

{
 for (size_t i = 0; i < wstr.size(); ++i)
 if (!isEastAsianCharacter(wstr[i]) && (!numericOrSpace || !isNumericOrSpace(wstr[i])))
 return false;
 return true;
}

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bool isExtendedLatinCharacter ( wchar_t  wchar )

inline

{
 if (isBasicLatinCharacter(wchar))
 return true;
 if (wchar >= 0x00C0 && wchar <= 0x00D6) // LATIN CAPITAL LETTER A WITH GRAVE - LATIN CAPITAL LETTER O WITH DIAERESIS
 return true;
 if (wchar >= 0x00D8 && wchar <= 0x00DE) // LATIN CAPITAL LETTER O WITH STROKE - LATIN CAPITAL LETTER THORN
 return true;
 if (wchar == 0x00DF) // LATIN SMALL LETTER SHARP S
 return true;
 if (wchar >= 0x00E0 && wchar <= 0x00F6) // LATIN SMALL LETTER A WITH GRAVE - LATIN SMALL LETTER O WITH DIAERESIS
 return true;
 if (wchar >= 0x00F8 && wchar <= 0x00FE) // LATIN SMALL LETTER O WITH STROKE - LATIN SMALL LETTER THORN
 return true;
 if (wchar >= 0x0100 && wchar <= 0x012F) // LATIN CAPITAL LETTER A WITH MACRON - LATIN SMALL LETTER I WITH OGONEK
 return true;
 if (wchar == 0x1E9E) // LATIN CAPITAL LETTER SHARP S
 return true;
 return false;
}

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bool isExtendedLatinString ( const std::wstring &  wstr, bool  numericOrSpace  )

inline

{
 for (size_t i = 0; i < wstr.size(); ++i)
 if (!isExtendedLatinCharacter(wstr[i]) && (!numericOrSpace || !isNumericOrSpace(wstr[i])))
 return false;
 return true;
}

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TC_COMMON_API bool IsIPAddress

(

char const *

ipaddress

)

Check if the string is a valid ip address representation.

{
 if (!ipaddress)
 return false;

 // Let the big boys do it.
 // Drawback: all valid ip address formats are recognized e.g.: 12.23, 121234, 0xABCD)
 return inet_addr(ipaddress) != INADDR_NONE;
}

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bool isNumeric ( wchar_t  wchar )

inline

{
 return (wchar >= L'0' && wchar <=L'9');
}

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bool isNumeric ( char  c )

inline

{
 return (c >= '0' && c <='9');
}

bool isNumeric ( char const *  str )

inline

{
 for (char const* c = str; *c; ++c)
 if (!isNumeric(*c))
 return false;

 return true;
}

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bool isNumericOrSpace ( wchar_t  wchar )

inline

{
 return isNumeric(wchar) || wchar == L' ';
}

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TC_COMMON_API struct tm* localtime_r	(	const time_t *	time,
		struct tm *	result
	)

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TC_COMMON_API int64 MoneyStringToMoney

(

const std::string &

moneyString

)

{
 int64 money = 0;

 if (!(std::count(moneyString.begin(), moneyString.end(), 'g') == 1 ||
 std::count(moneyString.begin(), moneyString.end(), 's') == 1 ||
 std::count(moneyString.begin(), moneyString.end(), 'c') == 1))
 return 0; // Bad format

 Tokenizer tokens(moneyString, ' ');
 for (Tokenizer::const_iterator itr = tokens.begin(); itr != tokens.end(); ++itr)
 {
 std::string tokenString(*itr);
 size_t gCount = std::count(tokenString.begin(), tokenString.end(), 'g');
 size_t sCount = std::count(tokenString.begin(), tokenString.end(), 's');
 size_t cCount = std::count(tokenString.begin(), tokenString.end(), 'c');
 if (gCount + sCount + cCount != 1)
 return 0;

 uint64 amount = atoull(*itr);
 if (gCount == 1)
 money += amount * 100 * 100;
 else if (sCount == 1)
 money += amount * 100;
 else if (cCount == 1)
 money += amount;
 }

 return money;
}

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template<class T >

T RoundToInterval ( T &  num, T  floor, T  ceil  )

inline

{
 return num = std::min(std::max(num, floor), ceil);
}

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TC_COMMON_API std::string secsToTimeString	(	uint64	timeInSecs,
		bool	shortText = false,
		bool	hoursOnly = false
	)

{
 uint64 secs = timeInSecs % MINUTE;
 uint64 minutes = timeInSecs % HOUR / MINUTE;
 uint64 hours = timeInSecs % DAY / HOUR;
 uint64 days = timeInSecs / DAY;

 std::ostringstream ss;
 if (days)
 ss << days << (shortText ? "d" : " Day(s) ");
 if (hours || hoursOnly)
 ss << hours << (shortText ? "h" : " Hour(s) ");
 if (!hoursOnly)
 {
 if (minutes)
 ss << minutes << (shortText ? "m" : " Minute(s) ");
 if (secs || (!days && !hours && !minutes) )
 ss << secs << (shortText ? "s" : " Second(s).");
 }

 return ss.str();
}

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TC_COMMON_API bool StringToBool

(

std::string const &

str

)

{
 std::string lowerStr = boost::algorithm::to_lower_copy(str);
 return lowerStr == "1" || lowerStr == "true" || lowerStr == "yes";
}

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TC_COMMON_API void stripLineInvisibleChars

(

std::string &

src

)

{
 static std::string const invChars = " \t\7\n";

 size_t wpos = 0;

 bool space = false;
 for (size_t pos = 0; pos < str.size(); ++pos)
 {
 if (invChars.find(str[pos])!=std::string::npos)
 {
 if (!space)
 {
 str[wpos++] = ' ';
 space = true;
 }
 }
 else
 {
 if (wpos!=pos)
 str[wpos++] = str[pos];
 else
 ++wpos;
 space = false;
 }
 }

 if (wpos < str.size())
 str.erase(wpos, str.size());
 if (str.find("|TInterface")!=std::string::npos)
 str.clear();

}

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TC_COMMON_API uint32 TimeStringToSecs

(

const std::string &

timestring

)

{
 uint32 secs = 0;
 uint32 buffer = 0;
 uint32 multiplier = 0;

 for (std::string::const_iterator itr = timestring.begin(); itr != timestring.end(); ++itr)
 {
 if (isdigit(*itr))
 {
 buffer*=10;
 buffer+= (*itr)-'0';
 }
 else
 {
 switch (*itr)
 {
 case 'd': multiplier = DAY; break;
 case 'h': multiplier = HOUR; break;
 case 'm': multiplier = MINUTE; break;
 case 's': multiplier = 1; break;
 default : return 0; //bad format
 }
 buffer*=multiplier;
 secs+=buffer;
 buffer=0;
 }
 }

 return secs;
}

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TC_COMMON_API std::string TimeToTimestampStr

(

time_t

t

)

{
 tm aTm;
 localtime_r(&t, &aTm);
 // YYYY year
 // MM month (2 digits 01-12)
 // DD day (2 digits 01-31)
 // HH hour (2 digits 00-23)
 // MM minutes (2 digits 00-59)
 // SS seconds (2 digits 00-59)
 char buf[20];
 snprintf(buf, 20, "%04d-%02d-%02d_%02d-%02d-%02d", aTm.tm_year+1900, aTm.tm_mon+1, aTm.tm_mday, aTm.tm_hour, aTm.tm_min, aTm.tm_sec);
 return std::string(buf);
}

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TC_COMMON_API bool Utf8FitTo	(	const std::string &	str,
		std::wstring const &	search
	)

{
 std::wstring temp;

 if (!Utf8toWStr(str, temp))
 return false;

 // converting to lower case
 wstrToLower(temp);

 if (temp.find(search) == std::wstring::npos)
 return false;

 return true;
}

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TC_COMMON_API size_t utf8length

(

std::string &

utf8str

)

{
    try
    {
        return utf8::distance(utf8str.c_str(), utf8str.c_str()+utf8str.size());
    }
    catch(std::exception)
    {
        utf8str.clear();
        return 0;
    }
}

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TC_COMMON_API void utf8printf	(	FILE *	out,
		const char *	str,
			...
	)

{
    va_list ap;
    va_start(ap, str);
    vutf8printf(out, str, &ap);
    va_end(ap);
}

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TC_COMMON_API bool utf8ToConsole	(	const std::string &	utf8str,
		std::string &	conStr
	)

{
#if PLATFORM == PLATFORM_WINDOWS
    std::wstring wstr;
    if (!Utf8toWStr(utf8str, wstr))
        return false;

    conStr.resize(wstr.size());
    CharToOemBuffW(&wstr[0], &conStr[0], uint32(wstr.size()));
#else
    // not implemented yet
    conStr = utf8str;
#endif

    return true;
}

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TC_COMMON_API bool Utf8ToUpperOnlyLatin

(

std::string &

utf8String

)

{
    std::wstring wstr;
    if (!Utf8toWStr(utf8String, wstr))
        return false;

    std::transform(wstr.begin(), wstr.end(), wstr.begin(), wcharToUpperOnlyLatin);

    return WStrToUtf8(wstr, utf8String);
}

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TC_COMMON_API bool Utf8toWStr	(	const std::string &	utf8str,
		std::wstring &	wstr
	)

{
    try
    {
        if (size_t len = utf8::distance(utf8str.c_str(), utf8str.c_str()+utf8str.size()))
        {
            wstr.resize(len);
            utf8::utf8to16(utf8str.c_str(), utf8str.c_str()+utf8str.size(), &wstr[0]);
        }
    }
    catch(std::exception)
    {
        wstr.clear();
        return false;
    }

    return true;
}

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TC_COMMON_API bool Utf8toWStr	(	char const *	utf8str,
		size_t	csize,
		wchar_t *	wstr,
		size_t &	wsize
	)

{
    try
    {
        size_t len = utf8::distance(utf8str, utf8str+csize);
        if (len > wsize)
        {
            if (wsize > 0)
                wstr[0] = L'\0';
            wsize = 0;
            return false;
        }

        wsize = len;
        utf8::utf8to16(utf8str, utf8str+csize, wstr);
        wstr[len] = L'\0';
    }
    catch(std::exception)
    {
        if (wsize > 0)
            wstr[0] = L'\0';
        wsize = 0;
        return false;
    }

    return true;
}

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bool Utf8toWStr ( const std::string &  utf8str, wchar_t *  wstr, size_t &  wsize  )

inline

{
    return Utf8toWStr(utf8str.c_str(), utf8str.size(), wstr, wsize);
}

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TC_COMMON_API void utf8truncate	(	std::string &	utf8str,
		size_t	len
	)

{
    try
    {
        size_t wlen = utf8::distance(utf8str.c_str(), utf8str.c_str()+utf8str.size());
        if (wlen <= len)
            return;

        std::wstring wstr;
        wstr.resize(wlen);
        utf8::utf8to16(utf8str.c_str(), utf8str.c_str()+utf8str.size(), &wstr[0]);
        wstr.resize(len);
        char* oend = utf8::utf16to8(wstr.c_str(), wstr.c_str()+wstr.size(), &utf8str[0]);
        utf8str.resize(oend-(&utf8str[0]));                 // remove unused tail
    }
    catch(std::exception)
    {
        utf8str.clear();
    }
}

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TC_COMMON_API void vutf8printf	(	FILE *	out,
		const char *	str,
		va_list *	ap
	)

{
#if PLATFORM == PLATFORM_WINDOWS
    char temp_buf[32 * 1024];
    wchar_t wtemp_buf[32 * 1024];

    size_t temp_len = vsnprintf(temp_buf, 32 * 1024, str, *ap);
    //vsnprintf returns -1 if the buffer is too small
    if (temp_len == size_t(-1))
        temp_len = 32*1024-1;

    size_t wtemp_len = 32*1024-1;
    Utf8toWStr(temp_buf, temp_len, wtemp_buf, wtemp_len);

    CharToOemBuffW(&wtemp_buf[0], &temp_buf[0], uint32(wtemp_len + 1));
    fprintf(out, "%s", temp_buf);
#else
    vfprintf(out, str, *ap);
#endif
}

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wchar_t wcharToLower ( wchar_t  wchar )

inline

{
    if (wchar >= L'A' && wchar <= L'Z')                      // LATIN CAPITAL LETTER A - LATIN CAPITAL LETTER Z
        return wchar_t(uint16(wchar)+0x0020);
    if (wchar >= 0x00C0 && wchar <= 0x00D6)                  // LATIN CAPITAL LETTER A WITH GRAVE - LATIN CAPITAL LETTER O WITH DIAERESIS
        return wchar_t(uint16(wchar)+0x0020);
    if (wchar >= 0x00D8 && wchar <= 0x00DE)                  // LATIN CAPITAL LETTER O WITH STROKE - LATIN CAPITAL LETTER THORN
        return wchar_t(uint16(wchar)+0x0020);
    if (wchar >= 0x0100 && wchar <= 0x012E)                  // LATIN CAPITAL LETTER A WITH MACRON - LATIN CAPITAL LETTER I WITH OGONEK (only %2=0)
    {
        if (wchar % 2 == 0)
            return wchar_t(uint16(wchar)+0x0001);
    }
    if (wchar == 0x1E9E)                                     // LATIN CAPITAL LETTER SHARP S
        return wchar_t(0x00DF);
    if (wchar == 0x0401)                                     // CYRILLIC CAPITAL LETTER IO
        return wchar_t(0x0451);
    if (wchar >= 0x0410 && wchar <= 0x042F)                  // CYRILLIC CAPITAL LETTER A - CYRILLIC CAPITAL LETTER YA
        return wchar_t(uint16(wchar)+0x0020);

    return wchar;
}

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wchar_t wcharToUpper ( wchar_t  wchar )

inline

{
    if (wchar >= L'a' && wchar <= L'z')                      // LATIN SMALL LETTER A - LATIN SMALL LETTER Z
        return wchar_t(uint16(wchar)-0x0020);
    if (wchar == 0x00DF)                                     // LATIN SMALL LETTER SHARP S
        return wchar_t(0x1E9E);
    if (wchar >= 0x00E0 && wchar <= 0x00F6)                  // LATIN SMALL LETTER A WITH GRAVE - LATIN SMALL LETTER O WITH DIAERESIS
        return wchar_t(uint16(wchar)-0x0020);
    if (wchar >= 0x00F8 && wchar <= 0x00FE)                  // LATIN SMALL LETTER O WITH STROKE - LATIN SMALL LETTER THORN
        return wchar_t(uint16(wchar)-0x0020);
    if (wchar >= 0x0101 && wchar <= 0x012F)                  // LATIN SMALL LETTER A WITH MACRON - LATIN SMALL LETTER I WITH OGONEK (only %2=1)
    {
        if (wchar % 2 == 1)
            return wchar_t(uint16(wchar)-0x0001);
    }
    if (wchar >= 0x0430 && wchar <= 0x044F)                  // CYRILLIC SMALL LETTER A - CYRILLIC SMALL LETTER YA
        return wchar_t(uint16(wchar)-0x0020);
    if (wchar == 0x0451)                                     // CYRILLIC SMALL LETTER IO
        return wchar_t(0x0401);

    return wchar;
}

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wchar_t wcharToUpperOnlyLatin ( wchar_t  wchar )

inline

{
    return isBasicLatinCharacter(wchar) ? wcharToUpper(wchar) : wchar;
}

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void wstrToLower ( std::wstring &  str )

inline

{
    std::transform( str.begin(), str.end(), str.begin(), wcharToLower );
}

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void wstrToUpper ( std::wstring &  str )

inline

{
    std::transform( str.begin(), str.end(), str.begin(), wcharToUpper );
}

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TC_COMMON_API bool WStrToUtf8	(	std::wstring const &	wstr,
		std::string &	utf8str
	)

{
    try
    {
        std::string utf8str2;
        utf8str2.resize(wstr.size()*4);                     // allocate for most long case

        if (wstr.size())
        {
            char* oend = utf8::utf16to8(wstr.c_str(), wstr.c_str()+wstr.size(), &utf8str2[0]);
            utf8str2.resize(oend-(&utf8str2[0]));                // remove unused tail
        }
        utf8str = utf8str2;
    }
    catch(std::exception)
    {
        utf8str.clear();
        return false;
    }

    return true;
}

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TC_COMMON_API bool WStrToUtf8	(	wchar_t *	wstr,
		size_t	size,
		std::string &	utf8str
	)

{
    try
    {
        std::string utf8str2;
        utf8str2.resize(size*4);                            // allocate for most long case

        if (size)
        {
            char* oend = utf8::utf16to8(wstr, wstr+size, &utf8str2[0]);
            utf8str2.resize(oend-(&utf8str2[0]));               // remove unused tail
        }
        utf8str = utf8str2;
    }
    catch(std::exception)
    {
        utf8str.clear();
        return false;
    }

    return true;
}

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