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