Languages have various allowances for white-space. This is a short exploration of parsers I found and what they claim to accept
Oct Dec Char Hex Key Esc
\000 0 NUL \x00 ^@ \0 (Null byte)
\010 8 BS \x08 ^H \b (Backspace)
\011 9 HT \x09 ^I \t (Horizontal tab)
\012 10 LF \x0A ^J \n (Line feed) (Default UNIX NL)