slackware-current/source/a/pkgtools/scripts/setup.vi-ex

#!/bin/sh
#BLURB="Configure the ex/vi symlinks."
T_PX=$1
TMP=/var/log/setup/tmp
rm -f $TMP/exvitype
dialog --title "CHOOSE DEFAULT EX/VI EDITOR" --default-item "vim" --menu \
"This part of the configuration \
process will create ex and vi symlinks in /usr/bin pointing to your default \
ex/vi editors. On a fresh installation, these will point to vim by default \
as it is the de facto standard. You may choose a different default \
if you prefer, but please note that elvis does not support UTF8." 14 76 3 \
"elvis" "Slackware's traditional ex/vi, no UTF8 support" \
"nvi" "Classic BSD ex/vi, supports UTF8" \
"vim" "Vi IMproved - top rated ex/vi clone, supports UTF8" \
2> $TMP/exvitype
if [ ! $? = 0 ]; then
 rm -f $TMP/exvitype
 exit
fi
if [ -f $TMP/exvitype ]; then
 DEFAULT_VI=$(cat $TMP/exvitype)
else
 exit 0
fi
# Only make the symlinks if the targets actually exist.
if [ "$DEFAULT_VI" = "elvis" ]; then
  ( cd $T_PX/usr/bin
    if [ -e elvis ]; then
      rm -f ex vi
      ln -sf elvis ex
      ln -sf elvis vi
    fi
  )
elif [ "$DEFAULT_VI" = "nvi" ]; then
  ( cd $T_PX/usr/bin
    if [ -e nex -a -e nvi ]; then
      rm -f ex vi
      ln -sf nex ex
      ln -sf nvi vi
    fi
  )
elif [ "$DEFAULT_VI" = "vim" ]; then
  ( cd $T_PX/usr/bin
    if [ -e vim ]; then
      rm -f ex vi
      ln -sf vim ex
      ln -sf vim vi
    fi
  )
fi