Variable: left-margin

left-margin is a customizable and buffer-local variable defined in buffer.c.

Documentation

Column for the default indent-line-function to indent to.

Linefeed indents to this column in Fundamental mode.

View in manual

Probably introduced at or before Emacs version 1.4.

Source Code

// Defined in /usr/src/emacs/src/buffer.c
  DEFVAR_PER_BUFFER ("left-margin", &BVAR (current_buffer, left_margin),
		     Qintegerp,
		     doc: /* Column for the default `indent-line-function' to indent to.
Linefeed indents to this column in Fundamental mode.  */);