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Updated the prompt code.

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I removed the need for the ~/.tcsh_cache directory.  The right-side
alignment is handled with terminal control codes.  I stick
exclusively to ANSI/VT-100 control codes.  Everything should support
that by now, it's 2021!
This commit is contained in:
ADAM David Alan Martin
2021-03-02 06:27:19 -05:00
parent deefb398cc
commit 2cfaa4d64a
1 changed files with 7 additions and 90 deletions
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97
tcshrc.prompt.defs
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@ -6,11 +6,6 @@ if( $?CSHENV_DEBUG ) then
echo "Sourcing prompt setup and definitions..."
endif
if( $?CSHENV_DEBUG ) then
echo "Trying to fix tty bug"
endif
if( ! $?unknown_tty ) then
set unknown_tty="?"
if( $?CSHENV_DEBUG ) then
@ -18,97 +13,19 @@ if( ! $?unknown_tty ) then
endif
endif
setenv CSHENV_CACHE_DIR ~/.tcsh_cache
set promptchars='%#'
set default_screen_offset_count=80
set prompt_simple="${oldp_color_seq}[%n@%m: %c]%# "
switch( $CSHENV_SYSTEM )
# All BSD derived systems (and actually most non-GNU tools) have the 6th entry for stty being columns
case Darwin:
#FALLTHROUGH
# TODO: Figure out a collapse?
#case *BSD: #Is this legal in CSH?
#FALLTHROUGH
case FreeBSD:
#FALLTHROUGH
case NetBSD:
#FALLTHROUGH
case OpenBSD:
if( $?CSHENV_DEBUG ) then
echo "Using BSDish stty for width"
endif
set screen_offset_count=`stty -a | head -1 | awk '{print $6}' | sed -e "s/;//g"`
breaksw
# SysV variants:
# Linux (and Cygwin) are not BSD behavior, and make cols the 7th entry be stty
case Cygwin:
case Linux:
# SYSV type systems seem to be settling on this as the common mechanism.
case AIX:
case SunOS:
if( $?CSHENV_DEBUG ) then
echo "Linux prompt width for stty blows..."
endif
#Some cshes don't like the split line here!
set screen_offset_count=`stty -a | head -1 | sed -e 's/;//g' | awk '{print $7}' | sed -e 's/;//g'`
breaksw
default:
#We don't know how to handle this case. Just use a guessed
#value of 80, since we cannot tell.
set screen_offset_count=$default_screen_offset_count
echo "Using a default screen offset value"
breaksw
endsw
if( $?CSHENV_DEBUG ) then
echo "Screen offset computed to be: ${screen_offset_count}"
endif
set screen_width=$screen_offset_count
#echo $screen_offset_count
@ screen_offset_count = $screen_offset_count - 18
#echo "A"
set screen_offset=""
set n="1"
if ( ! -d $CSHENV_CACHE_DIR ) then
mkdir $CSHENV_CACHE_DIR
endif
#echo $screen_offset_count
if ( -f ${CSHENV_CACHE_DIR}/screen.$screen_width ) then
source ${CSHENV_CACHE_DIR}/screen.$screen_width
else
while ( ${n} < ${screen_offset_count} )
set screen_offset="${screen_offset} "
@ n = ($n + 1)
end
echo "set screen_offset='${screen_offset}'" > ${CSHENV_CACHE_DIR}/screen.${screen_width}
#echo "Make a manual cache entry for screen width."
endif
set date_prompt_core="${date_color_seq}%Y-%W-%D ${time_color_seq}%P"
# Screens are almost certainly not a million chars wide.
# If they are... oh well, that's a really weird one.
set date_prefix="%{${csi}A${csi}1000000G${csi}18D%}"
set date_suffix="%{${csi}G${csi}1B%}"
#set screen_return="%{8%}"
set date_prompt_core="${date_color_seq}%{%Y-%W-%D %}${time_color_seq}%{%P%}"
set date_prompt_left="${date_prompt_core}"
set date_prompt="${screen_offset}${date_prompt_core}"
set date_prompt="${date_prefix}${date_prompt_core}${date_suffix}"
#unset edit
if( $?CSHENV_DEBUG ) then