Variable: fringe-indicator-alist
fringe-indicator-alist is a buffer-local variable defined in buffer.c.
Documentation
Mapping from logical to physical fringe indicator bitmaps.
The value is an alist where each element (INDICATOR . BITMAPS) specifies the fringe bitmaps used to display a specific logical fringe indicator.
INDICATOR specifies the logical indicator type which is one of the
following symbols: truncation , continuation, overlay-arrow,
top, bottom, top-bottom, up, down, empty-line', or unknown.
BITMAPS is a list of symbols (LEFT RIGHT [LEFT1 RIGHT1]) which specifies
the actual bitmap shown in the left or right fringe for the logical
indicator. LEFT and RIGHT are the bitmaps shown in the left and/or
right fringe for the specific indicator. The LEFT1 or RIGHT1 bitmaps
are used only for the bottom and top-bottom indicators when the
last (only) line has no final newline. BITMAPS may also be a single
symbol which is used in both left and right fringes.
Probably introduced at or before Emacs version 22.1.
Source Code
// Defined in /usr/src/emacs/src/buffer.c
DEFVAR_PER_BUFFER ("fringe-indicator-alist",
&BVAR (current_buffer, fringe_indicator_alist), Qnil,
doc: /* Mapping from logical to physical fringe indicator bitmaps.
The value is an alist where each element (INDICATOR . BITMAPS)
specifies the fringe bitmaps used to display a specific logical
fringe indicator.
INDICATOR specifies the logical indicator type which is one of the
following symbols: `truncation' , `continuation', `overlay-arrow',
`top', `bottom', `top-bottom', `up', `down', empty-line', or `unknown'.
BITMAPS is a list of symbols (LEFT RIGHT [LEFT1 RIGHT1]) which specifies
the actual bitmap shown in the left or right fringe for the logical
indicator. LEFT and RIGHT are the bitmaps shown in the left and/or
right fringe for the specific indicator. The LEFT1 or RIGHT1 bitmaps
are used only for the `bottom' and `top-bottom' indicators when the
last (only) line has no final newline. BITMAPS may also be a single
symbol which is used in both left and right fringes. */);