Util.cpp File Reference

#include "Util.h"
#include "Common.h"
#include "CompilerDefs.h"
#include "utf8.h"
#include "Errors.h"
#include <stdarg.h>
#include <boost/algorithm/string/case_conv.hpp>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>

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Typedefs
typedef wchar_t const *const *	wstrlist

Functions
void	stripLineInvisibleChars (std::string &str)
std::string	secsToTimeString (uint64 timeInSecs, bool shortText, bool hoursOnly)
int64	MoneyStringToMoney (const std::string &moneyString)
uint32	TimeStringToSecs (const std::string &timestring)
std::string	TimeToTimestampStr (time_t t)
bool	IsIPAddress (char const *ipaddress)
	Check if the string is a valid ip address representation. More...
uint32	CreatePIDFile (std::string const &filename)
	create PID file More...
uint32	GetPID ()
size_t	utf8length (std::string &utf8str)
void	utf8truncate (std::string &utf8str, size_t len)
bool	Utf8toWStr (char const *utf8str, size_t csize, wchar_t *wstr, size_t &wsize)
bool	Utf8toWStr (const std::string &utf8str, std::wstring &wstr)
bool	WStrToUtf8 (wchar_t *wstr, size_t size, std::string &utf8str)
bool	WStrToUtf8 (std::wstring const &wstr, std::string &utf8str)
std::wstring	GetMainPartOfName (std::wstring const &wname, uint32 declension)
bool	utf8ToConsole (const std::string &utf8str, std::string &conStr)
bool	consoleToUtf8 (const std::string &conStr, std::string &utf8str)
bool	Utf8FitTo (const std::string &str, std::wstring const &search)
void	utf8printf (FILE *out, const char *str,...)
void	vutf8printf (FILE *out, const char *str, va_list *ap)
bool	Utf8ToUpperOnlyLatin (std::string &utf8String)
std::string	ByteArrayToHexStr (uint8 const *bytes, uint32 arrayLen, bool reverse)
void	HexStrToByteArray (std::string const &str, uint8 *out, bool reverse)
bool	StringToBool (std::string const &str)

Typedef Documentation

typedef wchar_t const* const* wstrlist

Function Documentation

std::string ByteArrayToHexStr	(	uint8 const *	bytes,
		uint32	arrayLen,
		bool	reverse
	)

{
 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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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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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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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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uint32 GetPID

(

)

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

 return uint32(pid);
}

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

{
 // 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 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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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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std::string secsToTimeString	(	uint64	timeInSecs,
		bool	shortText,
		bool	hoursOnly
	)

{
 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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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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void stripLineInvisibleChars

(

std::string &

str

)

{
 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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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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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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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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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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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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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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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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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,
		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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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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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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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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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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