Set whether or not parentheses will be blinked
Int_Type BLINK
The BLINK variable controls whether or not matching
parenthesis are blinked upon the insertion of a closing parenthesis.
If its value is non-zero, the matching parenthesis will be blinked;
otherwise, it will not.
Set the display mode for eight-bit characters
Int_Type DISPLAY_EIGHT_BIT
This variable determines how characters with the high bit set are to
be displayed. Specifically, any character whose value is greater than
or equal to the value of DISPLAY_EIGHT_BIT is output to the terminal
as is. Characters with the high bit set but less than this value are
sent to the terminal in a multiple character representation. For Unix
and VMS systems the value should be set to 160. This is because many
terminals use the characters with values between 128 and 160 as eight
bit control characters. For other systems, it can be set to zero.
META_CHAR
Control the display of the current time
Int_Type DISPLAY_TIME
If this variable is non-zero, the current time will be displayed on the
status line if the format for the status line permits it. If it is zero,
the time will not be displayed even if the %t format string is part
of the status line format.
set_status_line
DOLLAR_CHARACTER
Int_Type DOLLAR_CHARACTER = '$'
The character represented by DOLLAR_CHARACTER is used to
indicate that text extends beyond the borders of the window. This
character is traditionally a dollar sign. If the value of
DOLLAR_CHARACTER is 0, no character will be used for this
indicator.
set_color
Turn on or off region highlighting
Int_Type HIGHLIGHT
If this variable is non-zero, marked regions will be highlighted.
WANT_SYNTAX_HIGHLIGHT, set_color
Set the horizontal panning mode
Int_Type HORIZONTAL_PAN
If the value of this variable is non-zero, the window wil pan when the cursor goes outside the border of the window. More precisely, if the value is less than zero, the entire window will pan. If the value is positive, only the current line will pan. The absolute value of the number determines the panning increment.
SCREEN_WIDTH
Enable the display of line or column numbers
Int_Type LINENUMBERS
The LINENUMBERS variable determines whether or not line or
column numbers will be displayed on the status line. If the value
of LINENUMBERS is 0, then neither the line nor column number
information will be displayed. If LINENUMBERS is set to 1,
then the current line number will be displayed but column numbers
will not be. If LINENUMBERS is 2, the both line a column
numbers will be displayed.
set_status_line
Control the display of line and column number information
Int_Type LINE_NUMBERS
If set to 0, line numbers are not displayed on the status line. If
set to 1, line numbers will be displayed. If set to anything else,
the %c column format specifier will be parsed allowing the
column number to be displayed on the screen.
set_status_line
Specifies whether or not graphic characters are to be used
Int_Type Simulate_Graphic_Chars
If the value of this variable is non-zero, graphic characters will be simulated by simple ascii characters instead of trying to use the terminal's alternate character set.
This variable is not available on all platforms.
The string used for the status line
String_Type Status_Line_String
Status_Line_String is a read-only string variable that
specifies the format of the status line for newly created buffers.
To set the status line format, use the function set_status_line.
set_status_line
Set the current buffer TAB width
Int_Type TAB
This variable controls the tab width associated with the current buffer. A value of zero means that tab characters are not expanded and that tabs are never used to produce whitespace.
TAB_DEFAULT, USE_TABS
Set the default tab width
Int_Type TAB_DEFAULT
The value of TAB_DEFAULT is the default tab setting given to
all newly created buffers. A value of zero means that tab characters
are not expanded and that tabs are never used to produce whitespace.
A related variable TAB may be used to change the current
buffer's tab setting.
TAB, USE_TABS, TAB_DEFAULT
Top window's starting row
Int_Type
This read-only variable gives the value of the starting row of the top
window. If a menubar is present, the value will be 2, otherwise it
will be 1.
enable_top_status_line, window_info
Control the display of the end of buffer indicator
Int_Type
If this value of this variable is non-zero, the end of buffer
indicator "[EOB]" will be displayed at the end of the buffer. Such
an indicator is used for various editor emulations such as the
VAX/VMS EDT editor.
Enable or disable syntax highlighting
Int_Type WANT_SYNTAX_HIGHLIGHT
If the value of this variable is non-zero, syntax highlighting will be enabled. Otherwise, syntax highlighting will be turned off.
HIGHLIGHT, set_color
blink_match
Void blink_match ();
This function will attempt to blink the matching delimiter immediately before the editing point.
find_matching_delimiter, define_syntax
enlargewin
Void enlargewin ();
This function increases the size of the current window by one line by adjusting the size of the other windows accordingly.
window_info, onewindow
nwindows
Integer nwindows ();
The nwindows function returns the number of windows currently visible.
If the variable MINIBUFFER_ACTIVE is non-zero, the minibuffer is busy and
contributes to the number of windows.
splitwindow, onewindow, window_size
MINIBUFFER_ACTIVE
onewindow
Void onewindow ();
This function deletes all other windows except the current window and the mini-buffer window.
nwindows, splitwindow, enlargewin
MINIBUFFER_ACTIVE
otherwindow
Void otherwindow ();
This function will make the next window in the ring of windows as the default window. For example,
define zoom_next_window ()
{
otherwindow (); onewindow ();
}
nwindows, onewindow
MINIBUFFER_ACTIVE
recenter
Void recenter (Integer nth);
This function may be used to scroll the window such that the nth line
of the window contains the current line. If nth is zero, the current
line will be placed at the center of the window and the screen will be
completely redrawn.
nwindows, window_info
set_status_line
set_status_line (String format, Integer flag);
This function may be used to customize the status line of the current
window according to the string format. If the second parameter
flag is non-zero, format will apply to the global format string;
otherwise it applies to current buffer only. Newly created buffer
inherit the global format string when they appear in a window.
The format string may contain the following format specifiers:
%b buffer name
%f file name
%v JED version
%t current time --- only used if variable DISPLAY_TIME is non-zero
%p line number or percent string
%% literal '%' character
%m mode string
%a If abbrev mode, expands to "abbrev"
%n If buffer is narrowed, expands to "Narrow"
%o If overwrite mode, expands to "Ovwrt"
%c If the variable LINENUMBERS is 2, this expands to the current
column number.
"(Jed %v) EDT: %b (%m%a%n%o) %p,%c Advance %t"
set_mode, narrow, whatbuf, getbuf_info
DISPLAY_TIME,LINENUMBERS
splitwindow
Void splitwindow ();
This function splits the current window vertically creating another window that carries the current window's buffer.
onewindow, enlargewin, window_info
update
Void update (Integer f);
This function may be called to update the display. If the parameter
f is non-zero, the display will be updated even if there is input
pending. If f is zero, the display may only be partially updated if
input is pending.
input_pending, flush
w132
Void w132 ();
This function may be used to set the number of columns on a vtxxx compatable terminal to 132.
w80, set_term_vtxxx
w80
Void w80 ();
This function may be used to set the number of columns on a vtxxx compatable terminal to 80.
w132, set_term_vtxxx
window_info
Integer window_info(Integer item);
The window_info function returns information concerning the current
window. The actual information that is returned depends on the item
parameter. Acceptable values of item and the description of the
information returned is given in the following table:
'r' : Number of rows
'w' : Width of window
'c' : Starting column (from 1)
't' : Screen line of top line of window (from 1)
otherwindow, nwindows
SCREEN_HEIGHT,SCREEN_WIDTH
window_line
Integer window_line ();
This function returns the number of rows from the top of the current
window for the current line. If the current line is the very first line
in the window, a value of 1 will be returned, i.e., it is the first
line of the window.
window_info, nwindows
TOP_WINDOW_ROW