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-eval '(exit $?0)' && eval 'exec perl -S $0 ${1+"$@"}' && eval 'exec perl -S $0 $argv:q'
- if 0;
-use strict;
-
-# Change by Thomas Esser, Sept. 1998: The above lines allows us to find
-# perl along $PATH rather than guessing a fixed location. The above
-# construction should work with most shells.
-
-# A script to transform an EPS file so that:
-# a) it is guarenteed to start at the 0,0 coordinate
-# b) it sets a page size exactly corresponding to the BoundingBox
-# This means that when Ghostscript renders it, the result needs no
-# cropping, and the PDF MediaBox is correct.
-# c) the result is piped to Ghostscript and a PDF version written
-#
-# It needs a Level 2 PS interpreter.
-# If the bounding box is not right, of course, you have problems...
-#
-# The only thing I have not allowed for is the case of
-# "%%BoundingBox: (atend)", which is more complicated.
-#
-# Sebastian Rahtz, for Elsevier Science
-#
-# now with extra tricks from Hans Hagen's texutil.
-#
-# History
-# 1999/05/06 v2.5 (Heiko Oberdiek)
-# * New options: --hires, --exact, --filter, --help.
-# * Many cosmetics: title, usage, ...
-# * New code for debug, warning, error
-# * Detecting of cygwin perl
-# * Scanning for %%{Hires,Exact,}BoundingBox.
-# * Scanning only the header in order not to get a wrong
-# BoundingBox of an included file.
-# * (atend) supported.
-# * uses strict; (earlier error detecting).
-# * changed first comment from '%!PS' to '%!';
-# * corrected (atend) pattern: '\s*\(atend\)'
-# * using of $bbxpat in all BoundingBox cases,
-# correct the first white space to '...Box:\s*$bb...'
-# * corrected first line (one line instead of two before 'if 0;';
-# 2000/11/05 v2.6 (Heiko Oberdiek)
-# * %%HiresBoundingBox corrected to %%HiResBoundingBox
-# 2001/03/05 v2.7 (Heiko Oberdiek)
-# * Newline before grestore for the case that there is no
-# whitespace at the end of the eps file.
-# 2002/02/18 v2.8draft (Gerben Wierda)
-# * Handle different eol styles transparantly
-# * Applied fix from Peder Axensten for Freehand bug
-# 2002/02/21 v2.8draft (Gerben Wierda)
-# * Fixed bug where last line of buffer was not copied out (ugh!)
-# 2003/04/22 v2.9draft (Gerben Wierda)
-# * Fixed bug where with cr-eol files everything up to the first %!
-# * in the first 2048 bytes was gobbled (double ugh!)
-# 2004/03/17 v2.9.1draft (Gerben Wierda)
-# * No autorotate page
-# 2005/09/29 v2.9.2draft (Gerben Wierda)
-# * Quote OutFilename
-# 2005/10/01 v2.9.3draft (Gerben Wierda)
-# * Quote OutFilename
-# 2005/10/06 v2.9.4gw (Gerben Wierda)
-# * This has become the official version for now
-# 2005/10/06 v2.9.5gw (Gerben Wierda)
-# * Fixed a horrendous bug in the (atend) handling code
-#
-
-### program identification
-my $program = "epstopdf";
-my $filedate="2006/01/29";
-my $fileversion="2.9.5gw";
-my $copyright = "Copyright 1998-2006 by Sebastian Rahtz et al.";
-my $title = "\U$program\E $fileversion, $filedate - $copyright\n";
-
-### ghostscript command name
-my $GS = "gs";
-$GS = "gswin32c" if $^O eq 'MSWin32';
-$GS = "gswin32c" if $^O =~ /cygwin/;
-
-### options
-$::opt_help=0;
-$::opt_debug=0;
-$::opt_compress=1;
-$::opt_gs=1;
-$::opt_hires=0;
-$::opt_exact=0;
-$::opt_filter=0;
-$::opt_outfile="";
-
-### usage
-my @bool = ("false", "true");
-my $usage = <<"END_OF_USAGE";
-${title}Syntax: $program [options] <eps file>
-Options:
- --help: print usage
- --outfile=<file>: write result to <file>
- --(no)filter: read standard input (default: $bool[$::opt_filter])
- --(no)gs: run ghostscript (default: $bool[$::opt_gs])
- --(no)compress: use compression (default: $bool[$::opt_compress])
- --(no)hires: scan HiResBoundingBox (default: $bool[$::opt_hires])
- --(no)exact: scan ExactBoundingBox (default: $bool[$::opt_exact])
- --(no)debug: debug informations (default: $bool[$::opt_debug])
-Examples for producing 'test.pdf':
- * $program test.eps
- * produce postscript | $program --filter >test.pdf
- * produce postscript | $program -f -d -o=test.pdf
-Example: look for HiResBoundingBox and produce corrected PostScript:
- * $program -d --nogs -hires test.ps>testcorr.ps
-END_OF_USAGE
-
-### process options
-use Getopt::Long;
-GetOptions (
- "help!",
- "debug!",
- "filter!",
- "compress!",
- "gs!",
- "hires!",
- "exact!",
- "outfile=s",
-) or die $usage;
-
-### help functions
-sub debug {
- print STDERR "* @_\n" if $::opt_debug;
-}
-sub warning {
- print STDERR "==> Warning: @_!\n";
-}
-sub error {
- die "$title!!! Error: @_!\n";
-}
-sub errorUsage {
- die "$usage\n!!! Error: @_!\n";
-}
-
-### option help
-die $usage if $::opt_help;
-
-### get input filename
-my $InputFilename = "";
-if ($::opt_filter) {
- @ARGV == 0 or
- die errorUsage "Input file cannot be used with filter option";
- $InputFilename = "-";
- debug "Input file: standard input";
-}
-else {
- @ARGV > 0 or die errorUsage "Input filename missing";
- @ARGV < 2 or die errorUsage "Unknown option or too many input files";
- $InputFilename = $ARGV[0];
- -f $InputFilename or error "'$InputFilename' does not exist";
- debug "Input filename:", $InputFilename;
-}
-
-### option compress
-my $GSOPTS = "";
-$GSOPTS = "-dUseFlateCompression=false " unless $::opt_compress;
-
-### option BoundingBox types
-my $BBName = "%%BoundingBox:";
-!($::opt_hires and $::opt_exact) or
- error "Options --hires and --exact cannot be used together";
-$BBName = "%%HiResBoundingBox:" if $::opt_hires;
-$BBName = "%%ExactBoundingBox:" if $::opt_exact;
-debug "BoundingBox comment:", $BBName;
-
-### option outfile
-my $OutputFilename = $::opt_outfile;
-if ($OutputFilename eq "") {
- if ($::opt_gs) {
- $OutputFilename = $InputFilename;
- if (!$::opt_filter) {
- $OutputFilename =~ s/\.[^\.]*$//;
- $OutputFilename .= ".pdf";
- }
- }
- else {
- $OutputFilename = "-"; # standard output
- }
-}
-if ($::opt_filter) {
- debug "Output file: standard output";
-}
-else {
- debug "Output filename:", $OutputFilename;
-}
-
-### option gs
-if ($::opt_gs) {
- debug "Ghostscript command:", $GS;
- debug "Compression:", ($::opt_compress) ? "on" : "off";
-}
-
-### open input file
-open(IN,"<$InputFilename") or error "Cannot open",
- ($::opt_filter) ? "standard input" : "'$InputFilename'";
-binmode IN;
-
-### open output file
-if ($::opt_gs) {
- my $pipe = "$GS -q -sDEVICE=pdfwrite $GSOPTS -dAutoRotatePages=/None" .
- " -sOutputFile='$OutputFilename' - -c quit";
- debug "Ghostscript pipe:", $pipe;
- open(OUT,"|$pipe") or error "Cannot open Ghostscript for piped input";
-}
-else {
- open(OUT,">$OutputFilename") or error "Cannot write '$OutputFilename";
-}
-
-# reading a cr-eol file on a lf-eol system makes it impossible to parse
-# the header and besides it will read the intire file into yor line by line
-# scalar. this is also true the other way around.
-
-### scan a block, try to determine eol style
-
-my $buf;
-my $buflen;
-my @bufarray;
-my @parsedbufarray; # for mytell/myseek
-my $bufarraypos;
-
-# We assume 2048 is big enough.
-my $EOLSCANBUFSIZE = 2048;
-
-$buflen = read( IN, $buf, $EOLSCANBUFSIZE);
-if ($buflen > 0) {
- my $crlfpos;
- my $lfpos;
- my $crpos;
-
- # remove binary junk before header
- # if there is no header, we assume the file starts with ascii style and
- # we look for a eol style anyway, to prevent possible loading of the
- # entire file
- if ($buf =~ /%!/) {
- # throw away binary junk before %!
- $buf =~ s/(.*?)%!/%!/o;
- }
- $lfpos = index( $buf, "\n");
- $crpos = index( $buf, "\r");
- $crlfpos = index( $buf, "\r\n");
-
- if ($crpos > 0 and ($lfpos == -1 or $lfpos > $crpos+1)) {
- # The first eol was a cr and it was not immediately followed by a lf
- $/ = "\r";
- debug "The first eol character was a CR ($crpos) and not immediately followed by a LF ($lfpos)";
- }
-
- # Now we have set the correct eol-character. Get one more line and add
- # it to our buffer. This will make the buffer contain an entire line
- # at the end. Then split the buffer in an array. We will draw lines from
- # that array until it is empty, then move again back to <IN>
- $buf .= <IN> unless eof( IN);
- $buflen = length( $buf);
- $bufarraypos = 0;
-
- # Some extra magic is needed here: if we set $/ to \r, Perl's re engine
- # still thinks eol is \n in regular expressions (not very nice) so we
- # cannot split on ^, but have to split on \r and reappend those.
- if ($/ eq "\r") {
- @bufarray = split( /\r/ms, $buf); # split on \r
- grep( $_ .= "\r", @bufarray); # re-append \r to each array item
- }
- else {
- @bufarray = split( /^/ms, $buf);
- }
-}
-
-### getline
-sub getline {
- if ($#bufarray >= 0) {
- $_ = shift( @bufarray);
- unshift( @parsedbufarray, $_); # for myseek and mytell
- $bufarraypos += length( $_);
- # debug "getline from array. bufarraypos = $bufarraypos";
- # debug "*** READ: $_";
- }
- else {
- $_ = <IN>;
- }
- return( defined( $_));
-}
-
-### mytell and myseek, work on <IN> only
-sub mytell {
- if ($#bufarray) {
- # debug "Telling ARRAY position $bufarraypos";
- return $bufarraypos;
- }
- else {
- my $pos = tell( IN);
- # debug "Telling FILE position $pos";
- return $pos;
- }
-}
-
-sub myseek {
- my $pos = shift;
- # debug "Seeking to position $pos in input";
- if ($pos < $buflen) {
- # debug "myseek position $pos < buffer size $buflen";
- # We were still parsing the array, reset to the end of buf and
- # move to the right line in the array.
- # Now, move stuff from the @parsedbufarray back until we are back at $pos
- my $tmpline;
- while ($bufarraypos > $pos) {
- # debug "myseek bufarray position $bufarraypos > position $pos";
- # we test on parsedbufarray to prevent an infinite loop on
- # a programming error (DEVELOP only)
- die "Programming error 1\n" unless $#parsedbufarray;
- $tmpline = shift( @parsedbufarray);
- $bufarraypos -= length( $tmpline);
- unshift( @bufarray, $tmpline);
- debug "*** UNREAD: $tmpline";
- }
- # debug "Returning to ARRAY size position $buflen (bufarraypos = $bufarraypos)";
- return seek( IN, $buflen, 0);
- }
- else {
- # debug "Seeking to FILE position $pos";
- return seek( IN, $pos, 0);
- }
-}
-
-### scan first line
-my $header = 0;
-getline();
-if (/%!/) {
- # throw away binary junk before %!
- s/(.*)%!/%!/o;
-}
-$header = 1 if /^%/;
-debug "Scanning header for BoundingBox";
-print OUT;
-
-### variables and pattern for BoundingBox search
-my $bbxpatt = '[0-9eE\.\-]';
- # protect backslashes: "\\" gets '\'
-my $BBValues = "\\s*($bbxpatt+)\\s+($bbxpatt+)\\s+($bbxpatt+)\\s+($bbxpatt+)";
-my $BBCorrected = 0;
-
-sub CorrectBoundingBox {
- my ($llx, $lly, $urx, $ury) = @_;
- debug "Old BoundingBox:", $llx, $lly, $urx, $ury;
- my ($width, $height) = ($urx - $llx, $ury - $lly);
- my ($xoffset, $yoffset) = (-$llx, -$lly);
- debug "New BoundingBox: 0 0", $width, $height;
- debug "Offset:", $xoffset, $yoffset;
-
- print OUT "%%BoundingBox: 0 0 $width $height\n";
- print OUT "<< /PageSize [$width $height] >> setpagedevice\n";
- print OUT "gsave $xoffset $yoffset translate\n";
-}
-
-### scan header
-if ($header) {
- HEADER: while (getline()) {
- ### Fix for freehand bug ### by Peder Axensten
- next HEADER if(!/\S/);
-
- ### end of header
- if (!/^%/ or /^%%EndComments/) {
- print OUT;
- last;
- }
-
- ### BoundingBox with values
- if (/^$BBName$BBValues/) {
- CorrectBoundingBox $1, $2, $3, $4;
- $BBCorrected = 1;
- last;
- }
-
- ### BoundingBox with (atend)
- if (/^$BBName\s*\(atend\)/) {
- debug $BBName, "(atend)";
- if ($::opt_filter) {
- warning "Cannot look for BoundingBox in the trailer",
- "with option --filter";
- last;
- }
- my $pos = mytell();
- debug "Current file position:", $pos;
-
- # looking for %%BoundingBox
- while (getline()) {
- # skip over included documents
- if (/^%%BeginDocument/) {
- while (getline()) {
- last if /^%%EndDocument/;
- }
- }
- if (/^$BBName$BBValues/) {
- CorrectBoundingBox $1, $2, $3, $4;
- $BBCorrected = 1;
- last;
- }
- }
-
- # go back
- myseek( $pos) or error "Cannot go back to line '$BBName (atend)'";
- last;
- }
-
- # print header line
- print OUT;
- }
-}
-
-### print rest of file
-while (getline()) {
- print OUT;
-}
-
-### close files
-close(IN);
-print OUT "\ngrestore\n" if $BBCorrected;
-close(OUT);
-warning "BoundingBox not found" unless $BBCorrected;
-debug "Ready.";
-;