Method push_pop

lib_acl_cpp/src/mime/mime_code.cpp:310–350

}

int mime_code::push_pop(const char* in, size_t len,
	string* out, size_t max /* = 0 */)
{
	if (m_pBuf == NULL) {
		m_pBuf = NEW string(1024);
	}

	if (in && len > 0) {
		if (m_encoding) {
			encode_update(in, (int) len, m_pBuf);
		} else {
			decode_update(in, (int) len, m_pBuf);
		}
	}

	if (out == NULL) {
		return 0;
	}

	len = m_pBuf->length();
	if (len == 0) {
		return 0;
	}

	size_t n;
	if (max > 0) {
		n = max > len ? len : max;
	} else {
		n = len;
	}

	out->append(m_pBuf->c_str(), n);

	if (len > n) {
		m_pBuf->memmove(m_pBuf->c_str() + n, len - n);
	} else {
		m_pBuf->clear();
	}

	return (int) (n);
}

int mime_code::pop_end(string* out, size_t max /* = 0 */)
{