StringView::StringView(const StringView &str, uint32 begin, uint32 end)
: _str(str.c_str()+begin)
, _length(end-begin)
{
ARC_ASSERT(begin <= str.length(),"Invalid StringView begin.");
ARC_ASSERT(end <= str.length(), "Invalid StringView end");
}
bool write_string(Slice<char>& buffer, StringView v)
{
if (buffer.size() < v.length()) return false;
memcpy(buffer.ptr(), v.c_str(), v.length());
buffer.trim_front(v.length());
return true;
}
void unroll_write(Slice<char> buffer, const T& head, Tail&&... tail)
{
bool ok;
ok = write_string(buffer, head);
if (!ok)
{
// flush
std::cout.write(m_buffer, BUFFER_SIZE - buffer.size());
// reset buffer
buffer = make_slice<char>(m_buffer, (uint64)BUFFER_SIZE);
// try again
ok = write_string(buffer, head);
if (!ok)
{
StringView error = " <ERROR> ";
std::cout.write(error.c_str(), error.length());
}
}
unroll_write(buffer, std::forward<Tail>(tail)...);
}
void push(lua_State *state, StringView value)
{
lua_pushlstring(state,value.c_str(),value.length());
}