Escape sequences¶

Escape sequence is a sequence of backslash \ followed by one or more characters. They are used to represent some of the special characters in a strings and regular expressions.

Common escape sequences¶

• \' - single quote
• \" - double quote
• \\ - backslash
• \b - backspace
• \f - form feed
• \n - line feed
• \r - carriage return
• \t - horizontal tab
• \v - vertical tab
• \0 - NULL character

Hexadecimal escape sequences¶

Some characters can be escaped using hexadecimal notation. These are the characters in the ASCII range (0-255). The hexadecimal escape sequences are in the \xnn format where nn is a two-digit hexadecimal number.

Unicode escape sequences¶

There are two formats of the Unicode escape sequences.

• \unnnn - UTF-16 with four hexadecimal digits nnnn
• \u{nnnn} ~ \u{nnnnn} - Unicode with four or five hexadecimal digits nnnn

A full table of Unicode characters can be found on unicode-table.com.