#!/bin/sh

MANDOC="@MANDOCPROG@"
GROFF="@GROFFPROG@"
MANTYPE="@MANTYPE@"
EGREP="@EGREP@"

if [ "$MANTYPE" != "mdoc" ]; then
    echo "$0 only supports mdoc manuals" 1>&2
    exit 1
fi

TFILE=`mktemp -t check_man.XXXXXX` || exit 1

rval=0
while [ $# != 0 ]; do
    if [ "$MANDOC" != "mandoc" ]; then
	# Ignore OS warning and missing cross-references
	$MANDOC -Tlint $1 | $EGREP -v 'STYLE: (operating system explicitly specified|referenced manual not found):' > "$TFILE" 2>&1
	if [ -s "$TFILE" ]; then
	    rval=`expr $rval + 1`
	    cat "$TFILE"
	fi
    fi

    if [ "$GROFF" != "groff" ]; then
	$GROFF -mandoc -K utf8 -rF0 -rHY=0 -rCHECKSTYLE=10 -ww -b -z $1 || \
	    rval=`expr $rval + $?`
    fi

    $EGREP '^\.It[ 	].*[ 	]Ta$' $1 > "$TFILE" 2>&1
    if [ -s "$TFILE" ]; then
	rval=`expr $rval + 1`
	echo "Empty table cell at EOL leads to trailing whitespace:"
	cat "$TFILE"
    fi

    $EGREP '[ 	]$' $1 > "$TFILE" 2>&1
    if [ -s "$TFILE" ]; then
	rval=`expr $rval + 1`
	echo "Trailing whitespace:"
	cat "$TFILE"
    fi

    shift
done

rm -f "$TFILE"
exit $rval