32.17.6 Indentation-Based Motion Commands

These commands, primarily for interactive use, act based on the indentation in the text.

command back-to-indentation

This command moves point to the first non-whitespace character in the current line (which is the line in which point is located). It returns nil.

command backward-to-indentation \&optional arg

This command moves point backward arg lines and then to the first nonblank character on that line. It returns nil. If arg is omitted or nil, it defaults to 1.

command forward-to-indentation \&optional arg

This command moves point forward arg lines and then to the first nonblank character on that line. It returns nil. If arg is omitted or nil, it defaults to 1.