Tab character

A tab character is a control character that encodes alignment instructions in text. Unlike a printable character, it does not represent content like a letter or a digit. Although multiple tab characters have been defined and used in the past, today the variation that is widely used is the horizontal tab (HT). The vertical tab (VT) and other more esoteric alignment control characters were used in the past and remain defined in modern character encodings although rarely used.

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