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|
#!/bin/sh
# $FreeBSD$
# dialog wrapper script
AWK="/usr/bin/awk"
DIALOG="/usr/bin/dialog"
ECHO="/bin/echo"
SED="/usr/bin/sed"
STTY="/bin/stty"
# get terminal size
size=$( ${STTY} size )
visheight="${size%%[$IFS]*}"
visheight=$(($visheight-3))
listheight=$(($visheight-6))
viswidth="${size#*[$IFS]}"
viswidth=$(($viswidth-10))
descwidth=$(($viswidth-22))
# test for a minimum version of dialog(1)
DIALOG_VER="0"
DIALOG_MIN="1.1-20100428"
dialogout=$( ${DIALOG} --print-version 2>&1 )
if [ $? -eq 0 ]; then
DIALOG_VER=$( ${ECHO} "$dialogout" | ${SED} -e 's/^[^0-9]*//' )
# only newer versions of dialog have --item-help
HAS_ITEM_HELP="1"
fi
# escape the menu title
TITLE=$( ${AWK} -v title="$2" \
'BEGIN { gsub(/'\''/, "'\''\\'\'\''", title); print title }' )
cmdstr=""
[ "${HAS_ITEM_HELP}" ] && cmdstr="--item-help"
cmdstr="$cmdstr $1 '$2' $visheight $viswidth $listheight"
shift 5
menulist=$(
varlist=
_maxvarlen=0
while [ $# -gt 0 ]; do
var="$1"
[ ${#var} -gt $_maxvarlen ] && export _maxvarlen=${#var}
varlist="$varlist${varlist:+
}$var"
# build hashed environment variables
export _${var}_desc="$2"
export _${var}_val="$3"
shift 3
done
${ECHO} "$varlist" \
| ${AWK} -v hasitemhelp="${HAS_ITEM_HELP}" -v viswid="$viswidth" '
{
var = $1
desc = ENVIRON["_" var "_desc"]
val = ENVIRON["_" var "_val"]
descwid = viswid -(ENVIRON["_maxvarlen"] + 12)
extdesc = ""
if ( length(desc) > descwid ) {
extdesc = substr(desc, descwid)
gsub(/'\''/, "'\''\\'\'\''", extdesc)
desc = substr(desc, 1, descwid - 1) "+"
}
gsub(/'\''/, "'\''\\'\'\''", desc)
printf "'\''%s'\'' '\''%s'\'' '\''%s'\''", var, desc, val
if ( hasitemhelp ) printf " '\''%s'\''", extdesc
printf "\n"
} '
)
eval ${DIALOG} $cmdstr $menulist
status="$?"
echo
exit $status
|
