This section contains information for customization only. Beginning users should skip it.
When you reenter SXEmacs after suspending, SXEmacs normally clears the
screen and redraws the entire display. On some terminals with more than
one page of memory, it is possible to arrange the termcap entry so that
the ‘ti’ and ‘te’ strings (output to the terminal when SXEmacs
is entered and exited, respectively) switch between pages of memory so
as to use one page for SXEmacs and another page for other output. In that
case, you might want to set the variable
nil so that SXEmacs will assume, when resumed, that the screen
page it is using still contains what SXEmacs last wrote there.
echo-keystrokes controls the echoing of multi-character
keys; its value is the number of seconds of pause required to cause echoing
to start, or zero, meaning don’t echo at all. See Echo Area.
If the variable
nil, control characters in the
buffer are displayed with octal escape sequences, all except newline and
tab. If its value is
t, then control characters will be printed
with an up-arrow, for example ^A.
If its value is not
t and not
nil, then characters whose
code is greater than 160 (that is, the space character (32) with its
high bit set) will be assumed to be printable, and will be displayed
without alteration. This is the default when running under X Windows,
since SXEmacs assumes an ISO/8859-1 character set (also known as
ctl-arrow variable may also be set to an
integer, in which case all characters whose codes are greater than or
equal to that value will be assumed to be printable.
Altering the value of
ctl-arrow makes it local to the current
buffer; until that time, the default value is in effect. See Locals.
Normally, a tab character in the buffer is displayed as whitespace which
extends to the next display tab stop position, and display tab stops come
at intervals equal to eight spaces. The number of spaces per tab is
controlled by the variable
tab-width, which is made local by
changing it, just like
ctl-arrow. Note that how the tab character
in the buffer is displayed has nothing to do with the definition of
TAB as a command.
If you set the variable
the three dots at the end of a line that precedes invisible
lines do not appear. There is no visible indication of the invisible lines.
This variable becomes local automatically when set.