xref: /plan9/sys/src/cmd/gs/lib/pv.sh (revision 593dc095aefb2a85c828727bbfa9da139a49bdf4)
1#!/bin/sh -f
2# $Id: pv.sh,v 1.4 2004/08/04 00:55:46 giles Exp $
3#
4# pv - preview a specified page of a dvi file in a Ghostscript window
5# usage: pv page file
6#
7# pv converts the given page to PostScript and displays it
8# in a Ghostscript window.
9#
10if [ $# -lt 2 ] ;then
11  echo usage: $0 'page_number file_name[.dvi]'
12  exit 1
13fi
14#
15# The following line used to appear here:
16#
17#RESOLUTION=100
18#
19# But according to Peter Dyballa
20# <pete@lovelace.informatik.uni-frankfurt.de>, "Modern versions of dvips are
21# taught to read configuration files which tell them the paths to PK, TFM,
22# VF and other files for example PostScript font programmes. These files
23# tell #dvips too which default resolution is used and therefore which
24# series of PK files (based on 300 DPI or 400 DPI or 600 DPI or even more)
25# are held on the system."  So we have deleted this line, and also removed
26# the -D switch from the call of dvips below.
27#
28
29# This definition is changed on install to match the
30# executable name set in the makefile
31GS_EXECUTABLE=gs
32
33TEMPDIR=.
34PAGE=$1
35shift
36FILE=$1
37shift
38trap "rm -rf $TEMPDIR/$FILE.$$.pv" 0 1 2 15
39#dvips -D$RESOLUTION -p $PAGE -n 1 $FILE $* -o $FILE.$$.pv
40dvips -p $PAGE -n 1 $FILE $* -o $FILE.$$.pv
41$GS_EXECUTABLE $FILE.$$.pv
42exit 0
43