kakoune/src/string.hh
2013-02-26 14:28:20 +01:00

136 lines
4.1 KiB
C++

#ifndef string_hh_INCLUDED
#define string_hh_INCLUDED
#include <string>
#include <iosfwd>
#include <climits>
#include <boost/regex.hpp>
#include "memoryview.hh"
#include "units.hh"
#include "utf8.hh"
namespace Kakoune
{
typedef boost::regex Regex;
class String
{
public:
String() {}
String(const char* content) : m_content(content) {}
String(std::string content) : m_content(std::move(content)) {}
String(const String& string) = default;
String(String&& string) = default;
explicit String(char content, CharCount count = 1) : m_content((size_t)(int)count, content) {}
explicit String(Codepoint cp, CharCount count = 1)
{
std::string str;
auto it = back_inserter(str);
utf8::dump(it, cp);
for (CharCount i = 0; i < count; ++i)
m_content += str;
}
template<typename Iterator>
String(Iterator begin, Iterator end) : m_content(begin, end) {}
char operator[](ByteCount pos) const { return m_content[(int)pos]; }
ByteCount length() const { return m_content.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); }
bool empty() const { return m_content.empty(); }
bool operator== (const String& other) const { return m_content == other.m_content; }
bool operator!= (const String& other) const { return m_content != other.m_content; }
bool operator< (const String& other) const { return m_content < other.m_content; }
String& operator= (const String& other) { m_content = other.m_content; return *this; }
String& operator= (String&& other) { m_content = std::move(other.m_content); return *this; }
String operator+ (const String& other) const { return String(m_content + other.m_content); }
String& operator+= (const String& other) { m_content += other.m_content; return *this; }
String operator+ (char c) const { return String(m_content + c); }
String& operator+= (char c) { m_content += c; return *this; }
memoryview<char> data() const { return memoryview<char>(m_content.data(), m_content.size()); }
const char* c_str() const { return m_content.c_str(); }
String substr(ByteCount pos, ByteCount length = -1) const { return String(m_content.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 String& expression, const String& replacement) const;
using iterator = std::string::const_iterator;
iterator begin() const { return m_content.begin(); }
iterator end() const { return m_content.end(); }
char front() const { return m_content.front(); }
char back() const { return m_content.back(); }
char& front() { return m_content.front(); }
char& back() { return m_content.back(); }
size_t hash() const { return std::hash<std::string>()(m_content); }
inline friend std::ostream& operator<<(std::ostream& os, const String& str)
{
return os << str.m_content;
}
enum { npos = -1 };
private:
std::string m_content;
};
inline String operator+(const char* lhs, const String& rhs)
{
return String(lhs) + rhs;
}
inline String operator+(char lhs, const String& rhs)
{
return String(lhs) + rhs;
}
String int_to_str(int value);
int str_to_int(const String& str);
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;
auto it = back_inserter(str);
utf8::dump(it, cp);
return String(str);
}
}
namespace std
{
template<>
struct hash<Kakoune::String>
{
size_t operator()(const Kakoune::String& str) const
{
return str.hash();
}
};
}
#endif // string_hh_INCLUDED