/* Return whether the integer string is a hex string. */
BOOLEAN IsHexStr(CHAR16 *Str)
/* Return whether the integer string is a hex string. */
BOOLEAN IsHexStr(CHAR16 *Str)
{
  while ((*Str != 0) && *Str == L' ') {
    Str ++;
  }
  while ((*Str != 0) && *Str == L'0') {
    Str ++;
  }
  return (BOOLEAN) (*Str == L'x' || *Str == L'X');
}