home/src/string.hh

130 lines
3.9 KiB
C++

#ifndef string_hh_INCLUDED
#define string_hh_INCLUDED
#include "memoryview.hh"
#include "units.hh"
#include "utf8.hh"
#include <string>
#include <boost/regex.hpp>
namespace Kakoune
{
typedef boost::regex Regex;
class String : public std::string
{
public:
String() {}
String(const char* content) : std::string(content) {}
String(std::string content) : std::string(std::move(content)) {}
explicit String(char content, CharCount count = 1) : std::string((size_t)(int)count, content) {}
explicit String(Codepoint cp, CharCount count = 1)
{
while (count-- > 0)
utf8::dump(back_inserter(*this), cp);
}
template<typename Iterator>
String(Iterator begin, Iterator end) : std::string(begin, end) {}
std::string& stdstr() { return *this; }
const std::string& stdstr() const { return *this; }
char operator[](ByteCount pos) const { return std::string::operator[]((int)pos); }
char& operator[](ByteCount pos) { return std::string::operator[]((int)pos); }
ByteCount length() const { return ByteCount{(int)std::string::length()}; }
CharCount char_length() const { return utf8::distance(begin(), end()); }
ByteCount byte_count_to(CharCount count) const { return utf8::advance(begin(), end(), (int)count) - begin(); }
CharCount char_count_to(ByteCount count) const { return utf8::distance(begin(), begin() + (int)count); }
String operator+(const String& other) const { return String{stdstr() + other.stdstr()}; }
String& operator+=(const String& other) { std::string::operator+=(other); return *this; }
String operator+(const char* other) const { return String{stdstr() + other}; }
String& operator+=(const char* other) { std::string::operator+=(other); return *this; }
String operator+(char other) const { return String{stdstr() + other}; }
String& operator+=(char other) { std::string::operator+=(other); return *this; }
String operator+(Codepoint cp) const { String res = *this; utf8::dump(back_inserter(res), cp); return res; }
String& operator+=(Codepoint cp) { utf8::dump(back_inserter(*this), cp); return *this; }
memoryview<char> data() const { return memoryview<char>(std::string::data(), size()); }
String substr(ByteCount pos, ByteCount length = -1) const { return String{std::string::substr((int)pos, (int)length)}; }
String substr(CharCount pos, CharCount length = INT_MAX) const
{
auto b = utf8::advance(begin(), end(), (int)pos);
auto e = utf8::advance(b, end(), (int)length);
return String(b,e);
}
String replace(const Regex& expression, const String& replacement) const;
};
inline String operator+(const char* lhs, const String& rhs)
{
return String(lhs) + rhs;
}
inline String operator+(const std::string& lhs, const String& rhs)
{
return String(lhs) + rhs;
}
inline String operator+(const String& lhs, const std::string& rhs)
{
return lhs + String(rhs);
}
inline String operator+(char lhs, const String& rhs)
{
return String(lhs) + rhs;
}
inline String operator+(Codepoint lhs, const String& rhs)
{
return String(lhs) + rhs;
}
std::vector<String> split(const String& str, char separator);
inline String operator"" _str(const char* str, size_t)
{
return String(str);
}
inline String codepoint_to_str(Codepoint cp)
{
std::string str;
utf8::dump(back_inserter(str), cp);
return String(str);
}
String option_to_string(const Regex& re);
void option_from_string(const String& str, Regex& re);
int str_to_int(const String& str);
String to_string(int val);
template<typename RealType, typename ValueType>
String to_string(const StronglyTypedNumber<RealType, ValueType>& val)
{
return to_string((ValueType)val);
}
}
namespace std
{
template<>
struct hash<Kakoune::String> : hash<std::string>
{
size_t operator()(const Kakoune::String& str) const
{
return hash<std::string>::operator()(str);
}
};
}
#endif // string_hh_INCLUDED