bool data_stream::write_line(const dynamic_string& str)
{
if (!str.is_empty())
return write(str.get_ptr(), str.get_len()) == str.get_len();
return true;
}
bool data_stream::read_line(dynamic_string &str)
{
str.empty();
for (;;)
{
const int c = read_byte();
const bool prev_got_cr = m_got_cr;
m_got_cr = false;
if (c < 0)
{
if (!str.is_empty())
break;
return false;
}
// ignores DOS EOF, assumes it's at the very end of the file
else if ((26 == c) || (!c))
continue;
else if (13 == c)
{
m_got_cr = true;
break;
}
else if (10 == c)
{
if (prev_got_cr)
continue;
break;
}
str.append_char(static_cast<char>(c));
}
return true;
}
bool data_stream::read_line(dynamic_string &str)
{
str.empty();
for (;;)
{
// Can't be const--need to deal with Mac OS9 style line endings via substition
const int c = read_byte();
if (c < 0)
{
if (!str.is_empty())
break;
return false;
}
// ignores DOS EOF, assumes it's at the very end of the file
else if ((26 == c) || (!c))
continue;
else if (c_CR == c)
{
// This path handles OS9 and Windows style line endings.
// Check to see if the next character is a LF, if so eat that one too.
if (c_LF == peek_byte()) {
read_byte();
}
break;
}
else if (c_LF == c)
{
// UNIX style line endings.
break;
}
str.append_char(static_cast<char>(c));
}
return true;
}
