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Imported from P4

#! /bin/sh

#	@(#)mmdoc	1.21	/doccenter/tmadm/src/shell/s.mmdoc
#	general documentation generator
#
#	Files begining with a ".TH" macro are treated as manual pages.
#	Files whose first line is
#		'\" x
#	where "x" is a string begining with "c", "e", "t" are also treated as
#	manual pages.
#	Files whose first line is
#		'\"! text
#	are processed by the command line "text" with the file provided
#	as the standard input.
#	Files whose first line is
#		'\"macro name
#	where "name" is the name of a file in TMMACRO will be run off with
#	that macro package.  "name"s begining "-" will be flag arguments
#	to nroff.
#	All others are handed to nroff with -cm and mmdoc
#
#	Assumes mdate.pl will be found by the current search path.
#
umask 0		#	nroff must be able to write into files it closes
while [ -n "$1" ]
do
	case $1 in
	-D )
		DrafT=-rC3
		export DrafT
		;;
	-T* )
		TERM=`expr $1 : '-T\(.*\)'`
		case ${TERM} in
			eps)
				post="|deps"
				flavor=troff
				;;
			aps)
				post="|apsend b=m305"
				flavor=troff
				;;
			Aps)	# This is a fake out so that collections
				# can be sent as a unit to APS-5
				# instead of series of calls. Used only by
				# collection routine 'tcol_final'
				post=
				flavor=troff
				TERM=aps
				;;
			image)
				post="|apsend b=m305 d=i"
				flavor=troff
				TERM=aps
				;;
			i300)
				post="|dimpress"
				flavor=troff
				;;
			8300)
				post="|dimpress"
				flavor=troff
				TERM=aps
				;;
			psc)
				post="|psdit |lp -oh"
				flavor=troff
				export TERM
				;;

			PS)
				post="|psdit"
				flavor=troff
				TERM=psc
				export TERM
				;;
			X100)
				post=""
				flavor=troff
				TERM=X100
				export TERM
				;;
			*)
				post=
				flavor=nroff
				;;
		esac
		export post flavor
		;;
	-r[ymd]* )
		DocdatE="$DocdatE $1"
		export DocdatE
		dateset=yes
		;;
	-?* )
		flags="$flags $1"
		export flags
		;;
	- | * )
		break
	esac
	shift
done
if [ $# = 0 ]
then
	set -- -
fi
for i
{
	if [ "$i" != "-" -a ! -s "$i" ]
	then
		echo "Cannot input file: $i"
		continue
	fi
	case $i in
	- )
		;;
	* )
		Line1=`line <$i`
		if [ ! "${dateset}" ]
		then
			#	DocdatE is intentionally capitalized that way
			#	to cut the possibility of env name collision.
			DocdatE=`mdate.pl $i`
			export DocdatE
		fi
	esac

	MacrO=${TMMACRO}

	case "${Line1}" in
	.TH*  |  "'\\\" "[cet]* )
		man -T${TERM} -d ${DocdatE} $*
		;;
	"'\\\"!"* )
		cmd=`echo "${Line1}"  |  sed 's/^....//'`
		if [ "$flavor" != troff ]
		then
			cmd=`echo " ${cmd} " | sed 's/ eqn / neqn /'`
		fi
		Line1=`sed -n -e 2p -e 2q ${i}`
		export Line1
		if [ "$flavor" = troff ]
		then
			eval '<$i' $cmd
			#eval `parse "$cmd" ${i}`
		else
			TERM=lp
			eval '<$i' $cmd
		fi
		;;
	"'\\\"macro"* )
		cmd=`echo "${Line1}"  |
			sed '	s/.."macro//'"
				s:[	]\([^-	]\): ${TMMACRO?}/\1:g"`
		cmd=`echo $cmd|sed "s;[         ]*.*/stdmacro;${MacrO?}/strings.mm ${MacrO?}/stdmacro;"`
		cmd="$cmd $OTHERFILES"
		if [ "$flavor" = troff ]
		then
			case "$cmd" in
			*stdmacro*)
				case "$flags" in
				*-rs[0-9]*)
					;;
				*)
					flags="${flags} -rs1"
				esac
			esac
			eval troff -T${TERM} ${DrafT} ${DocdatE} ${flags} ${cmd} $i ${post}
		else
			eval nroff ${DrafT} ${DocdatE} ${flags} ${cmd} $i
		fi
		;;
	"'\\\"text"* )
		cmd=`echo "${Line1}"  |
			sed '	s/.."text//'"
				s:[	]\([^-	]\): ${TMMACRO?}/\1:g"`
		cmd=`echo $cmd|sed "s;[         ]*.*/docmacs;${MacrO?}/docmacs;"`
		if [ "$flavor" = troff ]
		then
			eval troff -T${TERM} ${DrafT} ${DocdatE} ${flags} ${cmd} $i ${post}
		else
			eval nroff ${DrafT} ${DocdatE} ${flags} ${cmd} $i
		fi
		;;
	.tH* )
		# Right now 2/12/85 this stuff not used for DSG work.
		# No enhancements to do troff done yet.
		# Will do as necessary
		if [ -r ${TMMACRO}/mandocvar ]
		then
			. ${TMMACRO}/mandocvar
		fi
		nroff -T${TERM} ${DocdatE} ${flags} \
			-can ${MacrO?}/mandoc ${i}  |
		  col
		;;
	.pH* | '' | * )
		if [ -r ${TMMACRO}/mmdocvar ]
		then
			. ${TMMACRO}/mmdocvar
		fi
		if [ "$flavor" = troff ]
		then
			eval troff -T${TERM} -rW${Width:-5}i \
				-rL${Length:-8.5}i \
				${DocdatE} ${DrafT} ${flags} \
				/usr/bin/mmt $i ${post}
		else
			TERM=lp
			nroff -T${TERM} -u${Overstrike:-1} -rW${Width:-79} \
				-rO${Offset:-0} -rL${Length:-66} \
				${DocdatE} ${DrafT} ${flags} \
				${MacrO?}/newmm \
				${MacrO?}/mmdoc ${TMMACRO}/custom $i  |
			col
		fi
		;;
	esac
}