Util.h

Go to the documentation of this file.

/*
 * This file is part of the TrinityCore Project. See AUTHORS file for Copyright information
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the
 * Free Software Foundation; either version 2 of the License, or (at your
 * option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
 * more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
#ifndef _UTIL_H
#define _UTIL_H
 
#include "Define.h"
#include "Errors.h"
#include "Optional.h"
 
#include <array>
#include <string>
#include <string_view>
#include <typeinfo>
#include <utility>
#include <vector>
 
enum LocaleConstant : uint8;
 
enum class TimeFormat : uint8
{
 FullText, // 1 Days 2 Hours 3 Minutes 4 Seconds
 ShortText, // 1d 2h 3m 4s
 Numeric // 1:2:3:4
};
 
namespace Trinity
{
 TC_COMMON_API void VerifyOsVersion();
 
 TC_COMMON_API std::vector<std::string_view> Tokenize(std::string_view str, char sep, bool keepEmpty);
 
 /* this would return string_view into temporary otherwise */
 std::vector<std::string_view> Tokenize(std::string&&, char, bool) = delete;
 std::vector<std::string_view> Tokenize(std::string const&&, char, bool) = delete;
 
 /* the delete overload means we need to make this explicit */
 inline std::vector<std::string_view> Tokenize(char const* str, char sep, bool keepEmpty) { return Tokenize(std::string_view(str ? str : ""), sep, keepEmpty); }
}
 
TC_COMMON_API Optional<int64> MoneyStringToMoney(std::string const& moneyString);
 
#if (defined(WIN32) || defined(_WIN32) || defined(__WIN32__))
TC_COMMON_API struct tm* localtime_r(time_t const* time, struct tm *result);
TC_COMMON_API struct tm* gmtime_r(time_t const* time, struct tm *result);
TC_COMMON_API time_t timegm(struct tm* tm);
#endif
TC_COMMON_API time_t GetLocalHourTimestamp(time_t time, uint8 hour, bool onlyAfterTime = true);
TC_COMMON_API tm TimeBreakdown(time_t t);
 
TC_COMMON_API std::string secsToTimeString(uint64 timeInSecs, TimeFormat timeFormat = TimeFormat::FullText, bool hoursOnly = false);
TC_COMMON_API uint32 TimeStringToSecs(std::string const& timestring);
TC_COMMON_API std::string TimeToTimestampStr(time_t t);
TC_COMMON_API std::string TimeToHumanReadable(time_t t);
 
// Percentage calculation
template <class T, class U>
inline T CalculatePct(T base, U pct)
{
 return T(base * static_cast<float>(pct) / 100.0f);
}
 
template <class T>
inline float GetPctOf(T value, T max)
{
 ASSERT(max);
 return float(static_cast<float>(value) / static_cast<float>(max) * 100.0f);
}
 
template <class T, class U>
inline T AddPct(T &base, U pct)
{
 return base += CalculatePct(base, pct);
}
 
template <class T, class U>
inline T ApplyPct(T &base, U pct)
{
 return base = CalculatePct(base, pct);
}
 
template <class T>
inline T RoundToInterval(T& num, T floor, T ceil)
{
 return num = std::min(std::max(num, floor), ceil);
}
 
template <class T>
inline T square(T x) { return x*x; }
 
// UTF8 handling
TC_COMMON_API bool Utf8toWStr(std::string_view utf8str, std::wstring& wstr);
 
// in wsize==max size of buffer, out wsize==real string size
TC_COMMON_API bool Utf8toWStr(char const* utf8str, size_t csize, wchar_t* wstr, size_t& wsize);
 
inline bool Utf8toWStr(std::string_view utf8str, wchar_t* wstr, size_t& wsize)
{
 return Utf8toWStr(utf8str.data(), utf8str.size(), wstr, wsize);
}
 
TC_COMMON_API bool WStrToUtf8(std::wstring_view wstr, std::string& utf8str);
// size==real string size
TC_COMMON_API bool WStrToUtf8(wchar_t const* wstr, size_t size, std::string& utf8str);
 
// set string to "" if invalid utf8 sequence
TC_COMMON_API size_t utf8length(std::string& utf8str);
TC_COMMON_API void utf8truncate(std::string& utf8str, size_t len);
 
inline bool isBasicLatinCharacter(wchar_t wchar)
{
 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;
}
 
inline bool isExtendedLatinCharacter(wchar_t wchar)
{
 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;
}
 
inline bool isCyrillicCharacter(wchar_t wchar)
{
 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;
}
 
inline bool isKoreanCharacter(wchar_t wchar)
{
 if (wchar >= 0x1100 && wchar <= 0x11F9) // Hangul Jamo
 return true;
 if (wchar >= 0x3131 && wchar <= 0x318E) // Hangul Compatibility Jamo
 return true;
 if (wchar >= 0xAC00 && wchar <= 0xD7A3) // Hangul Syllables
 return true;
 if (wchar >= 0xFF01 && wchar <= 0xFFEE) // Halfwidth forms
 return true;
 return false;
}
 
inline bool isChineseCharacter(wchar_t wchar)
{
 if (wchar >= 0x4E00 && wchar <= 0x9FFF) // Unified CJK Ideographs
 return true;
 if (wchar >= 0x3400 && wchar <= 0x4DBF) // CJK Ideographs Ext. A
 return true;
 if (wchar >= 0x3100 && wchar <= 0x312C) // Bopomofo
 return true;
 if (wchar >= 0xF900 && wchar <= 0xFAFF) // CJK Compatibility Ideographs
 return true;
 return false;
}
 
inline bool isNumeric(wchar_t wchar)
{
 return (wchar >= L'0' && wchar <=L'9');
}
 
inline bool isNumeric(char c)
{
 return (c >= '0' && c <='9');
}
 
inline bool isNumeric(char const* str)
{
 for (char const* c = str; *c; ++c)
 if (!isNumeric(*c))
 return false;
 
 return true;
}
 
inline bool isNumericOrSpace(wchar_t wchar)
{
 return isNumeric(wchar) || wchar == L' ';
}
 
inline bool isBasicLatinString(std::wstring_view wstr, bool numericOrSpace)
{
 for (wchar_t c : wstr)
 if (!isBasicLatinCharacter(c) && (!numericOrSpace || !isNumericOrSpace(c)))
 return false;
 return true;
}
 
inline bool isExtendedLatinString(std::wstring_view wstr, bool numericOrSpace)
{
 for (wchar_t c : wstr)
 if (!isExtendedLatinCharacter(c) && (!numericOrSpace || !isNumericOrSpace(c)))
 return false;
 return true;
}
 
inline bool isCyrillicString(std::wstring_view wstr, bool numericOrSpace)
{
 for (wchar_t c : wstr)
 if (!isCyrillicCharacter(c) && (!numericOrSpace || !isNumericOrSpace(c)))
 return false;
 return true;
}
 
inline bool isKoreanString(std::wstring_view wstr, bool numericOrSpace)
{
 for (wchar_t c : wstr)
 if (!isKoreanCharacter(c) && (!numericOrSpace || !isNumericOrSpace(c)))
 return false;
 return true;
}
 
inline bool isChineseString(std::wstring_view wstr, bool numericOrSpace)
{
 for (wchar_t c : wstr)
 if (!isChineseCharacter(c) && (!numericOrSpace || !isNumericOrSpace(c)))
 return false;
 return true;
}
 
struct WcharToUpper
{
 wchar_t operator()(wchar_t wchar) const
 {
 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);
 if (wchar == 0x0153) // LATIN SMALL LIGATURE OE
 return wchar_t(0x0152);
 if (wchar == 0x00FF) // LATIN SMALL LETTER Y WITH DIAERESIS
 return wchar_t(0x0178);
 
 return wchar;
 }
} inline constexpr wcharToUpper;
 
struct WcharToUpperOnlyLatin
{
 wchar_t operator()(wchar_t wchar) const
 {
 return isBasicLatinCharacter(wchar) ? wcharToUpper(wchar) : wchar;
 }
} inline constexpr wcharToUpperOnlyLatin;
 
struct WcharToLower
{
 wchar_t operator()(wchar_t wchar) const
 {
 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 == 0x0152) // LATIN CAPITAL LIGATURE OE
 return wchar_t(0x0153);
 if (wchar == 0x0178) // LATIN CAPITAL LETTER Y WITH DIAERESIS
 return wchar_t(0x00FF);
 if (wchar >= 0x0410 && wchar <= 0x042F) // CYRILLIC CAPITAL LETTER A - CYRILLIC CAPITAL LETTER YA
 return wchar_t(uint16(wchar)+0x0020);
 
 return wchar;
 }
} inline constexpr wcharToLower;
 
inline bool isLower(wchar_t wchar)
{
 if (wchar >= L'a' && wchar <= L'z') // LATIN CAPITAL LETTER A - LATIN CAPITAL LETTER Z
 return true;
 if (wchar >= 0x00E0 && wchar <= 0x00FF) // LATIN SMALL LETTER A WITH GRAVE - LATIN SMALL LETTER Y WITH DIAERESIS
 return true;
 if (wchar >= 0x0430 && wchar <= 0x044F) // CYRILLIC SMALL LETTER A - CYRILLIC SMALL LETTER YA
 return true;
 if (wchar == 0x0451) // CYRILLIC SMALL LETTER IO
 return true;
 return false;
}
 
inline bool isUpper(wchar_t wchar)
{
 return !isLower(wchar);
}
 
struct CharToUpper
{
 char operator()(char c) const { return std::toupper(static_cast<unsigned char>(c)); }
} inline constexpr charToUpper;
 
struct CharToLower
{
 char operator()(char c) const { return std::tolower(static_cast<unsigned char>(c)); }
} inline constexpr charToLower;
 
TC_COMMON_API void wstrToUpper(std::wstring& str);
TC_COMMON_API void wstrToLower(std::wstring& str);
TC_COMMON_API void strToUpper(std::string& str);
TC_COMMON_API void strToLower(std::string& str);
 
TC_COMMON_API std::wstring wstrCaseAccentInsensitiveParse(std::wstring_view wstr, LocaleConstant locale);
 
TC_COMMON_API std::wstring GetMainPartOfName(std::wstring const& wname, uint32 declension);
 
TC_COMMON_API bool utf8ToConsole(std::string_view utf8str, std::string& conStr);
TC_COMMON_API bool consoleToUtf8(std::string_view conStr, std::string& utf8str);
TC_COMMON_API bool Utf8FitTo(std::string_view str, std::wstring_view 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);
 
#if TRINITY_PLATFORM == TRINITY_PLATFORM_WINDOWS
TC_COMMON_API bool ReadWinConsole(std::string& str, size_t size = 256);
TC_COMMON_API bool WriteWinConsole(std::string_view str, bool error = false);
#endif
 
TC_COMMON_API Optional<std::size_t> RemoveCRLF(std::string& str);
 
TC_COMMON_API bool IsIPAddress(char const* ipaddress);
 
TC_COMMON_API uint32 CreatePIDFile(std::string const& filename);
TC_COMMON_API uint32 GetPID();
 
namespace Trinity::Impl
{
 TC_COMMON_API std::string ByteArrayToHexStr(uint8 const* bytes, size_t length, bool reverse = false);
 TC_COMMON_API void HexStrToByteArray(std::string_view str, uint8* out, size_t outlen, bool reverse = false);
}
 
template <typename Container>
std::string ByteArrayToHexStr(Container const& c, bool reverse = false)
{
 return Trinity::Impl::ByteArrayToHexStr(std::data(c), std::size(c), reverse);
}
 
template <size_t Size>
void HexStrToByteArray(std::string_view str, std::array<uint8, Size>& buf, bool reverse = false)
{
 Trinity::Impl::HexStrToByteArray(str, buf.data(), Size, reverse);
}
template <size_t Size>
std::array<uint8, Size> HexStrToByteArray(std::string_view str, bool reverse = false)
{
 std::array<uint8, Size> arr;
 HexStrToByteArray(str, arr, reverse);
 return arr;
}
 
inline std::vector<uint8> HexStrToByteVector(std::string_view str, bool reverse = false)
{
 std::vector<uint8> buf;
 size_t const sz = (str.size() / 2);
 buf.resize(sz);
 Trinity::Impl::HexStrToByteArray(str, buf.data(), sz, reverse);
 return buf;
}
 
TC_COMMON_API float DegToRad(float degrees);
 
TC_COMMON_API bool StringEqualI(std::string_view str1, std::string_view str2);
inline bool StringStartsWith(std::string_view haystack, std::string_view needle) { return (haystack.substr(0, needle.length()) == needle); }
inline bool StringStartsWithI(std::string_view haystack, std::string_view needle) { return StringEqualI(haystack.substr(0, needle.length()), needle); }
TC_COMMON_API bool StringContainsStringI(std::string_view haystack, std::string_view needle);
template <typename T>
inline bool ValueContainsStringI(std::pair<T, std::string_view> const& haystack, std::string_view needle)
{
 return StringContainsStringI(haystack.second, needle);
}
TC_COMMON_API bool StringCompareLessI(std::string_view a, std::string_view b);
 
struct StringCompareLessI_T
{
 bool operator()(std::string_view a, std::string_view b) const { return StringCompareLessI(a, b); }
};
 
// simple class for not-modifyable list
template <typename T>
class HookList final
{
 private:
 typedef std::vector<T> ContainerType;
 
 ContainerType _container;
 
 public:
 typedef typename ContainerType::const_iterator const_iterator;
 typedef typename ContainerType::iterator iterator;
 
 HookList<T>& operator+=(T&& t)
 {
 _container.push_back(std::move(t));
 return *this;
 }
 
 size_t size() const
 {
 return _container.size();
 }
 
 iterator begin()
 {
 return _container.begin();
 }
 
 iterator end()
 {
 return _container.end();
 }
 
 const_iterator begin() const
 {
 return _container.begin();
 }
 
 const_iterator end() const
 {
 return _container.end();
 }
};
 
enum ComparisionType
{
 COMP_TYPE_EQ = 0,
 COMP_TYPE_HIGH,
 COMP_TYPE_LOW,
 COMP_TYPE_HIGH_EQ,
 COMP_TYPE_LOW_EQ,
 COMP_TYPE_MAX
};
 
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;
 }
}
 
template<typename E>
constexpr typename std::underlying_type<E>::type AsUnderlyingType(E enumValue)
{
 static_assert(std::is_enum<E>::value, "AsUnderlyingType can only be used with enums");
 return static_cast<typename std::underlying_type<E>::type>(enumValue);
}
 
template<typename Ret, typename T1, typename... T>
Ret* Coalesce(T1* first, T*... rest)
{
 if constexpr (sizeof...(T) > 0)
 return (first ? static_cast<Ret*>(first) : Coalesce<Ret>(rest...));
 else
 return static_cast<Ret*>(first);
}
 
namespace Trinity
{
namespace Impl
{
 TC_COMMON_API std::string GetTypeName(std::type_info const&);
}
 
template <typename T>
std::string GetTypeName() { return Impl::GetTypeName(typeid(T)); }
template <typename T>
std::string GetTypeName(T&& v)
{
 if constexpr (std::is_same_v<std::remove_cv_t<T>, std::type_info>)
 return Impl::GetTypeName(v);
 else
 return Impl::GetTypeName(typeid(v));
}
}
 
template<typename T>
struct NonDefaultConstructible
{
 constexpr /*implicit*/ NonDefaultConstructible(T value) : Value(std::move(value))
 {
 }
 
 T Value;
};
 
#endif