size_t StringExtractor::GetHexBytes(llvm::MutableArrayRef<uint8_t> dest,
uint8_t fail_fill_value) {
size_t bytes_extracted = 0;
while (!dest.empty() && GetBytesLeft() > 0) {
dest[0] = GetHexU8(fail_fill_value);
if (!IsGood())
break;
++bytes_extracted;
dest = dest.drop_front();
}
if (!dest.empty())
::memset(dest.data(), fail_fill_value, dest.size());
return bytes_extracted;
}
//----------------------------------------------------------------------
// Decodes all valid hex encoded bytes at the head of the
// StringExtractor, limited by dst_len.
//
// Returns the number of bytes successfully decoded
//----------------------------------------------------------------------
size_t StringExtractor::GetHexBytesAvail(llvm::MutableArrayRef<uint8_t> dest) {
size_t bytes_extracted = 0;
while (!dest.empty()) {
int decode = DecodeHexU8();
if (decode == -1)
break;
dest[0] = (uint8_t)decode;
dest = dest.drop_front();
++bytes_extracted;
}
return bytes_extracted;
}