- \\ - Backslash character;
- \t – TAB character;
- \r – CR character;
- \n – LF character;
- \0 – NULL character;
- \x## - Hexadecimal value (between 00 and FF);
- \u#### - Extended hexadecimal value (between 0000 and FFFF, meant for Unicode characters);
- \d### - Decimal value (between 000 and 255);
- \o### - Octal value (between 000 and 377);
- \b######## - Binary value (between 00000000 and 11111111).