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#include <AK/PrintfImplementation.h>
#include <AK/StdLibExtras.h>
#include <AK/StringBuilder.h>
#include <stdarg.h>
namespace AK {
inline void StringBuilder::will_append(int size)
{
if ((m_length + size) > m_buffer.size())
m_buffer.grow(max((int)16, m_buffer.size() * 2 + size));
}
StringBuilder::StringBuilder(int initial_capacity)
{
m_buffer.grow(initial_capacity);
}
void StringBuilder::append(const StringView& str)
{
if (str.is_empty())
return;
will_append(str.length());
memcpy(m_buffer.pointer() + m_length, str.characters_without_null_termination(), str.length());
m_length += str.length();
}
void StringBuilder::append(const char* characters, int length)
{
if (!length)
return;
will_append(length);
memcpy(m_buffer.pointer() + m_length, characters, length);
m_length += length;
}
void StringBuilder::append(char ch)
{
will_append(1);
m_buffer.pointer()[m_length] = ch;
m_length += 1;
}
void StringBuilder::appendvf(const char* fmt, va_list ap)
{
printf_internal([this](char*&, char ch) {
append(ch);
},
nullptr, fmt, ap);
}
void StringBuilder::appendf(const char* fmt, ...)
{
va_list ap;
va_start(ap, fmt);
will_append(strlen(fmt));
appendvf(fmt, ap);
va_end(ap);
}
ByteBuffer StringBuilder::to_byte_buffer()
{
m_buffer.trim(m_length);
return move(m_buffer);
}
String StringBuilder::to_string()
{
auto string = String((const char*)m_buffer.pointer(), m_length);
m_buffer.clear();
return string;
}
}
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