mirror of
https://github.com/vcmi/vcmi.git
synced 2024-11-24 08:32:34 +02:00
87 lines
3.2 KiB
C++
87 lines
3.2 KiB
C++
/*
|
|
* TextOperations.h, part of VCMI engine
|
|
*
|
|
* Authors: listed in file AUTHORS in main folder
|
|
*
|
|
* License: GNU General Public License v2.0 or later
|
|
* Full text of license available in license.txt file, in main folder
|
|
*
|
|
*/
|
|
#pragma once
|
|
|
|
VCMI_LIB_NAMESPACE_BEGIN
|
|
|
|
/// Namespace that provides utilites for unicode support (UTF-8)
|
|
namespace TextOperations
|
|
{
|
|
/// returns 32-bit UTF codepoint for UTF-8 character symbol
|
|
uint32_t DLL_LINKAGE getUnicodeCodepoint(const char *data, size_t maxSize);
|
|
|
|
/// returns 32-bit UTF codepoint for character symbol in selected single-byte encoding
|
|
uint32_t DLL_LINKAGE getUnicodeCodepoint(char data, const std::string & encoding );
|
|
|
|
/// returns length (in bytes) of UTF-8 character starting from specified character
|
|
size_t DLL_LINKAGE getUnicodeCharacterSize(char firstByte);
|
|
|
|
/// test if character is a valid UTF-8 symbol
|
|
/// maxSize - maximum number of bytes this symbol may consist from ( = remainer of string)
|
|
bool DLL_LINKAGE isValidUnicodeCharacter(const char * character, size_t maxSize);
|
|
|
|
/// returns true if text contains valid ASCII-string
|
|
/// Note that since UTF-8 extends ASCII, any ASCII string is also UTF-8 string
|
|
bool DLL_LINKAGE isValidASCII(const std::string & text);
|
|
bool DLL_LINKAGE isValidASCII(const char * data, size_t size);
|
|
|
|
/// test if text contains valid UTF-8 sequence
|
|
bool DLL_LINKAGE isValidUnicodeString(const std::string & text);
|
|
bool DLL_LINKAGE isValidUnicodeString(const char * data, size_t size);
|
|
|
|
/// converts text to UTF-8 from specified encoding or from one specified in settings
|
|
std::string DLL_LINKAGE toUnicode(const std::string & text, const std::string & encoding);
|
|
|
|
/// converts text from unicode to specified encoding or to one specified in settings
|
|
/// NOTE: usage of these functions should be avoided if possible
|
|
std::string DLL_LINKAGE fromUnicode(const std::string & text, const std::string & encoding);
|
|
|
|
///delete specified amount of UTF-8 characters from right
|
|
DLL_LINKAGE void trimRightUnicode(std::string & text, size_t amount = 1);
|
|
|
|
/// give back amount of unicode characters
|
|
size_t DLL_LINKAGE getUnicodeCharactersCount(const std::string & text);
|
|
|
|
/// converts number into string using metric system prefixes, e.g. 'k' or 'M' to keep resulting strings within specified size
|
|
/// Note that resulting string may have more symbols than digits: minus sign and prefix symbol
|
|
template<typename Arithmetic>
|
|
inline std::string formatMetric(Arithmetic number, int maxDigits);
|
|
|
|
/// replaces all symbols that normally need escaping with appropriate escape sequences
|
|
std::string escapeString(std::string input);
|
|
|
|
/// get formatted DateTime depending on the language selected
|
|
DLL_LINKAGE std::string getFormattedDateTimeLocal(std::time_t dt);
|
|
};
|
|
|
|
|
|
|
|
template<typename Arithmetic>
|
|
inline std::string TextOperations::formatMetric(Arithmetic number, int maxDigits)
|
|
{
|
|
Arithmetic max = std::pow(10, maxDigits);
|
|
if (std::abs(number) < max)
|
|
return std::to_string(number);
|
|
|
|
std::string symbols = " kMGTPE";
|
|
auto iter = symbols.begin();
|
|
|
|
while (std::abs(number) >= max)
|
|
{
|
|
number /= 1000;
|
|
iter++;
|
|
|
|
assert(iter != symbols.end());//should be enough even for int64
|
|
}
|
|
return std::to_string(number) + *iter;
|
|
}
|
|
|
|
VCMI_LIB_NAMESPACE_END
|