Regular Expression (Regex)
My
Notes
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Non-Printable Characters
\t - tab character (0x09),
\r - carriage return (0x0D)
\n - line feed (0x0A)
\a - alarm (0x07)
\e - escape (0x1B)
\f - form feed (0x0C)
\v - vertical tab (0x0B)
\xxx - octal number xxx
\xnn - hexadecimal number nn
\cX - control character
Reference:
Regular expression (Wikipedia)