Luna/libluna/include/luna/StaticString.h
apio 734ae6b0bc
kernel/ATA: Read ATA strings properly instead of backwards
Now we can see the model string. What does it say...

"QEMU DVD-ROM". Let's go!
2023-05-18 16:23:23 +02:00

101 lines
1.9 KiB
C++

#pragma once
#include <luna/CString.h>
#include <luna/StringView.h>
#include <luna/Types.h>
template <usize Size> class StaticString
{
public:
StaticString() = default;
StaticString(const char* string)
{
adopt(string);
}
template <usize OtherSize> StaticString(const StaticString<OtherSize>& other)
{
adopt(other.chars());
}
void adopt(const char* string)
{
usize length = strlcpy(m_buffer, string, sizeof(m_buffer));
if (length > Size) { m_length = Size; }
else
m_length = length;
}
void adopt(StringView string)
{
usize length = strlcpy(m_buffer, string.chars(),
string.length() > sizeof(m_buffer) ? sizeof(m_buffer) : string.length() + 1);
if (length > Size) { m_length = Size; }
else
m_length = length;
}
StaticString<Size>& operator=(const char* string)
{
adopt(string);
return *this;
}
StaticString<Size>& operator=(StringView string)
{
adopt(string);
return *this;
}
template <usize OtherSize> StaticString<Size>& operator=(const StaticString<OtherSize>& string)
{
if constexpr (OtherSize == Size)
{
if (this == &string) return *this;
}
adopt(string.chars());
return *this;
}
const char* chars() const
{
return m_buffer;
}
char* data()
{
return m_buffer;
}
void set_length(usize len)
{
m_length = len;
}
usize length() const
{
return m_length;
}
void trim(StringView delim)
{
isize i = (isize)m_length;
while (i--)
{
char c = m_buffer[i];
if (!strchr(delim.chars(), c)) break;
}
i++;
m_buffer[i] = '\0';
m_length = (usize)i;
}
private:
char m_buffer[Size + 1];
usize m_length { 0 };
};