#!/bin/rc# Tries to determine what type of file you are printing and do the correct# thing with it.# It currently knows about images, troff intermediate, and ascii files.TMPFILE=/tmp/lp$pidfn sigexit { rm -f $TMPFILE; }if (! ~ $DEBUG '') flag x +if (~ $LPCLASS *nohead*) NOHEAD=1if (~ $LPCLASS *duplex*) DUPLEX=1cat >$TMPFILEFILETYPE=`{file $TMPFILE}switch ($FILETYPE(2)) {case troff;	switch ($LPCLASS) {	case *Latin1* *post* *opost*;	switch ($FILETYPE(5)) {					# Latin1 is for compatibility with old research UNIX systems, doesn't work on Plan 9					case Latin1 post; tcs -s -f utf -t latin1 < $TMPFILE |$LPLIB/process/dpost 					case UTF; $LPLIB/process/tr2post < $TMPFILE					} 	case *gs!*;	switch ($FILETYPE(5)) {					# Latin1 is for compatibility with old research UNIX systems, doesn't work on Plan 9					case Latin1 post; tcs -s -f utf -t latin1 < $TMPFILE |$LPLIB/process/dpost |$LPLIB/process/gspipe 					case UTF; $LPLIB/process/tr2post < $TMPFILE |$LPLIB/process/gspipe					} 	case *;		echo $FILETYPE(2) -T$FILETYPE(5) output is improper for $LPDEST >[1=2]	}case special;	switch ($FILETYPE(4)) {	case '#b';		switch ($LPCLASS) {				case *post*;	$LPLIB/process/p9bitpost < $TMPFILE				case *gs!*;	$LPLIB/process/p9bitpost < $TMPFILE |$LPLIB/process/gspipe				} 	case *;		echo $FILETYPE file is improper for $LPDEST >[1=2]	}case Compressed plan old;	# type is really 'Compressed image' or 'plan 9 image' 				# or 'old plan 9 image'	switch ($LPCLASS) {	case *post*;	$LPLIB/process/p9bitpost < $TMPFILE	case *gs!*;	$LPLIB/process/p9bitpost < $TMPFILE |$LPLIB/process/gspipe	}case jpeg;	switch ($LPCLASS) {	case *post*;	$LPLIB/process/jpgpost < $TMPFILE	case *gs!*;	$LPLIB/process/jpgpost < $TMPFILE |$LPLIB/process/gspipe	} case GIF;	switch ($LPCLASS) {	case *post*;	$LPLIB/process/gifpost < $TMPFILE	case *gs!*;	$LPLIB/process/gifpost < $TMPFILE |$LPLIB/process/gspipe	} case ccitt-g31;	switch ($LPCLASS) {	case *post*;	$LPLIB/process/g3post < $TMPFILE	case *gs!*;	$LPLIB/process/g3post < $TMPFILE |$LPLIB/process/gspipe	} # bitmap for research UNIX compatibility, does not work on Plan 9.case bitmap;	switch ($LPCLASS) {	case *post*;	$LPLIB/process/bpost < $TMPFILE	case *mhcc*;	$LPLIB/process/bpost < $TMPFILE | $LPLIB/process/mhcc	case *;		echo $FILETYPE(2) file is improper for $LPDEST >[1=2]	}case tex;	mv $TMPFILE $TMPFILE.dvi	TMPFILE=$TMPFILE.dvi	switch ($LPCLASS) {	case *post*;	$LPLIB/process/dvipost $TMPFILE	case *gs!*;	$LPLIB/process/dvipost $TMPFILE |$LPLIB/process/gspipe	case *;		echo $FILETYPE(2) file is improper for $LPDEST >[1=2]	}case postscript;	switch ($LPCLASS) {	case *post*;		$LPLIB/process/post < $TMPFILE	case *gs!*;		$LPLIB/process/post < $TMPFILE |$LPLIB/process/gspipe	case *;			echo $FILETYPE(2) file is improper for $LPDEST >[1=2]	}case HPJCL;	switch ($LPCLASS) {	case *HPJCL*;		$LPLIB/process/noproc < $TMPFILE	case *;			echo $FILETYPE(2) file is improper for $LPDEST >[1=2]	}case daisy;	switch ($LPDEST) {	case *;		echo $FILETYPE(2) file is improper for $LPDEST >[1=2]	}case English short extended alef limbo [Aa]scii assembler c latin rc sh as mail email message/rfc822;	switch ($LPCLASS) {	case *post*;	$LPLIB/process/ppost < $TMPFILE	case *gs!*;	$LPLIB/process/ppost < $TMPFILE |$LPLIB/process/gspipe	case *canon*;	$LPLIB/process/can $* < $TMPFILE	case *;		echo Unrecognized class of line printer for $LPDEST >[1=2]	} case tiff;	switch ($LPCLASS) {	case *post*;	$LPLIB/process/tiffpost $TMPFILE	case *gs!*;	$LPLIB/process/tiffpost $TMPFILE |$LPLIB/process/gspipe	case *;		echo Unrecognized class of line printer for $LPDEST >[1=2]	}case PDF;	switch ($LPCLASS) {	case *post*;	$LPLIB/process/pdfpost $TMPFILE	case *gs!*;	$LPLIB/process/pdfgs $TMPFILE	case *;		echo Unrecognized class of line printer for $LPDEST >[1=2]	}case empty;	echo file is empty >[1=2]case cannot;	echo cannot open file >[1=2]case *;	echo $FILETYPE(2) file is improper for $LPDEST >[1=2]}waitrv=$statusrm -f $TMPFILE#exit $statusexit