mirror of
https://github.com/Ponce/slackbuilds
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1615495619
* Added epstopdf to the package (this was included in
tetex, so we need it here)
* Included a patch from Mikhail Zotov to link libpng14
586 lines
19 KiB
Perl
586 lines
19 KiB
Perl
eval '(exit $?0)' && eval 'exec perl -S $0 ${1+"$@"}' && eval 'exec perl -S $0 $argv:q'
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if 0;
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use strict;
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# $Id: epstopdf.pl 16244 2009-11-30 01:36:08Z karl $
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# (Copyright lines below.)
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are met:
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#
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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# 3. The name of the author may not be used to endorse or promote
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# products derived from this software without specific prior written
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# permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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# DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
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# INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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# STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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#
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# ----------------------------------------------------------------
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#
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# This is a script to transform an EPS file such that:
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# a) it is guaranteed to start at the 0,0 coordinate.
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# b) it sets a page size exactly corresponding to the BoundingBox
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# This means that when Ghostscript renders it, the result needs no
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# cropping, and the PDF MediaBox is correct.
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# c) the result is piped to Ghostscript and a PDF version written.
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#
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# It needs a Level 2 PS interpreter.
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# If the bounding box is not right, of course, there will be problems.
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#
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# One thing not allowed for is the case of
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# "%%BoundingBox: (atend)" when input is not seekable (e.g., from a pipe),
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# which is more complicated.
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#
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# emacs-page
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# History
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# 2009/11/27 v2.12 (Karl Berry)
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# * Make --filter work again
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# 2009/11/25 (Manuel P\'egouri\'e-Gonnard)
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# * Better extension detection, suggested by A. Cherepanov.
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# 2009/10/18 (Manuel P\'egouri\'e-Gonnard)
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# * Better argument validation (Alexander Cherepanov).
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# * Use list form of pipe open() (resp. system()) to prevent injection.
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# Since Perl's fork() emulation doesn't work on Windows with Perl 5.8.8 from
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# TeX Live 2009, use a temporary file instead of a pipe on Windows.
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# 2009/10/14 (Manuel P\'egouri\'e-Gonnard)
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# * Added restricted mode.
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# 2009/09/27 v2.11 (Karl Berry)
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# * Fixed two bugs in the (atend) handling code (Martin von Gagern)
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# * Improved handling of CR line ending (Martin von Gagern)
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# * More error checking
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# * --version option
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# * Create source repository in TeX Live
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# 2009/07/17 v2.9.11gw
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# * Added -dSAFER to default gs options
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# TL2009 wants to use a restricted variant of -shell-escape,
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# allowing epstopdf to run. However without -dSAFER Ghostscript
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# allows writing to files (other than given in -sOutputFile)
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# and running commands (through Ghostscript pipe's language feature).
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# 2009/05/09 v2.9.10gw
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# * Changed cygwin name for ghostscript to gs
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# 2008/08/26 v2.9.9gw
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# * Switch to embed fonts (default=yes) (J.P. Chretien)
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# * turned no AutoRotatePages into an option (D. Kreil) (default = None)
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# * Added resolution switch (D. Kreil)
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# * Added BSD-style license
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# 2007/07/18 v2.9.8gw
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# 2007/05/18 v.2.9.7gw (Gerben Wierda)
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# * Merged both supplied 2.9.6 versions
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# 2007/05/15 v2.9.6tp (Theo Papadopoulo)
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# * Simplified the (atend) support
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# 2007/01/24 v2.9.6sw (Staszek Wawrykiewicz)
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# * patched to work also on Windows
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# 2005/10/06 v2.9.5gw (Gerben Wierda)
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# * Fixed a horrendous bug in the (atend) handling code
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# 2005/10/06 v2.9.4gw (Gerben Wierda)
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# * This has become the official version for now
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# 2005/10/01 v2.9.3draft (Gerben Wierda)
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# * Quote OutFilename
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# 2005/09/29 v2.9.2draft (Gerben Wierda)
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# * Quote OutFilename
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# 2004/03/17 v2.9.1draft (Gerben Wierda)
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# * No autorotate page
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# 2003/04/22 v2.9draft (Gerben Wierda)
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# * Fixed bug where with cr-eol files everything up to the first %!
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# * in the first 2048 bytes was gobbled (double ugh!)
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# 2002/02/21 v2.8draft (Gerben Wierda)
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# * Fixed bug where last line of buffer was not copied out (ugh!)
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# 2002/02/18 v2.8draft (Gerben Wierda)
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# * Handle different eol styles transparantly
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# * Applied fix from Peder Axensten for Freehand bug
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# 2001/03/05 v2.7 (Heiko Oberdiek)
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# * Newline before grestore for the case that there is no
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# whitespace at the end of the eps file.
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# 2000/11/05 v2.6 (Heiko Oberdiek)
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# * %%HiresBoundingBox corrected to %%HiResBoundingBox
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# 1999/05/06 v2.5 (Heiko Oberdiek)
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# * New options: --hires, --exact, --filter, --help.
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# * Many cosmetics: title, usage, ...
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# * New code for debug, warning, error
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# * Detecting of cygwin perl
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# * Scanning for %%{Hires,Exact,}BoundingBox.
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# * Scanning only the header in order not to get a wrong
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# BoundingBox of an included file.
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# * (atend) supported.
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# * uses strict; (earlier error detecting).
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# * changed first comment from '%!PS' to '%!';
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# * corrected (atend) pattern: '\s*\(atend\)'
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# * using of $bbxpat in all BoundingBox cases,
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# correct the first white space to '...Box:\s*$bb...'
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# * corrected first line (one line instead of two before 'if 0;';
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#
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# Thomas Esser, Sept. 1998: change initial lines to find
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# perl along $PATH rather than guessing a fixed location. The above
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# construction should work with most shells.
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#
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# Originally by Sebastian Rahtz, for Elsevier Science
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# with extra tricks from Hans Hagen's texutil and many more.
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# emacs-page
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### program identification
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my $program = "epstopdf";
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my $ident = '($Id: epstopdf.pl 16244 2009-11-30 01:36:08Z karl $) 2.12';
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my $copyright = <<END_COPYRIGHT ;
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Copyright 2009 Karl Berry et al.
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Copyright 2002-2009 Gerben Wierda et al.
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Copyright 1998-2001 Sebastian Rahtz et al.
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License RBSD: Revised BSD <http://www.xfree86.org/3.3.6/COPYRIGHT2.html#5>
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This is free software: you are free to change and redistribute it.
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There is NO WARRANTY, to the extent permitted by law.
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END_COPYRIGHT
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my $title = "$program $ident\n";
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### ghostscript command name
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my $GS = "gs";
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$GS = "gswin32c" if $^O eq 'MSWin32';
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### restricted mode
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my $restricted = 0;
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$restricted = 1 if $0 =~ /repstopdf/;
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### options
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$::opt_outfile="";
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$::opt_compress=1;
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$::opt_debug=0;
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$::opt_embed=1;
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$::opt_exact=0;
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$::opt_filter=0;
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$::opt_gs=1;
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$::opt_hires=0;
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$::opt_gscmd="";
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$::opt_res=0;
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$::opt_autorotate="None";
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### usage
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my @bool = ("false", "true");
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my $resmsg = $::opt_res ? $::opt_res : "[use gs default]";
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my $rotmsg = $::opt_autorotate ? $::opt_autorotate : "[use gs default]";
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my $usage = <<"END_OF_USAGE";
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${title}Usage: $program [OPTION]... [EPSFILE]
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Convert EPS to PDF, by default using Ghostscript.
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Options:
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--help display this help and exit
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--version display version information and exit
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--outfile=FILE write result to FILE
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--(no)compress use compression (default: $bool[$::opt_compress])
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--(no)debug write debugging info (default: $bool[$::opt_debug])
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--(no)embed embed fonts (default: $bool[$::opt_embed])
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--(no)exact scan ExactBoundingBox (default: $bool[$::opt_exact])
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--(no)filter read standard input (default: $bool[$::opt_filter])
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--(no)gs run ghostscript (default: $bool[$::opt_gs])
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--(no)hires scan HiResBoundingBox (default: $bool[$::opt_hires])
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--gscmd=VAL pipe output to VAL (default: $GS)
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--res=DPI set image resolution (default: $resmsg)
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--autorotate=VAL set AutoRotatePages (default: $rotmsg)
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Recognized VAL choices: None, All, PageByPage
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For EPS files, PageByPage is equivalent to All
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--restricted use restricted mode (default: $bool[$restricted])
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Examples for producing 'test.pdf':
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* $program test.eps
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* produce postscript | $program --filter >test.pdf
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* produce postscript | $program -f -d -o=test.pdf
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Example: look for HiResBoundingBox and produce corrected PostScript:
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* $program -d --nogs --hires test.ps >testcorr.ps
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When reporting bugs, please include an input file and command line
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options so the problem can be reproduced.
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Report bugs to: tex-k\@tug.org
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epstopdf home page: <http://tug.org/epstopdf/>
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END_OF_USAGE
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### process options
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use Getopt::Long;
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GetOptions (
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"help",
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"version",
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"outfile=s", # \ref{openout_any}
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"compress!",
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"debug!",
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"embed!",
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"exact!",
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"filter!",
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"gs!",
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"hires!",
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"gscmd=s", # \ref{val_gscmd}
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"res=i", # validated by Getopt ('i' specifier)
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"autorotate=s", # \ref{val_autorotate}
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"restricted",
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) or die $usage;
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### help functions
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sub debug {
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print STDERR "* @_\n" if $::opt_debug;
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}
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sub warning {
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print STDERR "==> Warning: @_\n";
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}
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sub error {
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die "$title!!! Error: @_\n";
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}
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sub errorUsage {
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die "$usage\n!!! Error: @_\n";
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}
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### restricted option
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$restricted = 1 if $::opt_restricted;
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debug "Restricted mode activated" if $restricted;
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### help, version options.
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if ($::opt_help) {
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print $usage;
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exit (0);
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}
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if ($::opt_version) {
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print $title;
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print $copyright;
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exit (0);
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}
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### get input filename
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my $InputFilename = "";
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if ($::opt_filter) {
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@ARGV == 0 or
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die errorUsage "Input file cannot be used with filter option";
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debug "Filtering: will read standard input";
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} else {
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@ARGV > 0 or die errorUsage "Input filename missing";
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@ARGV < 2 or die errorUsage "Unknown option or too many input files";
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$InputFilename = $ARGV[0];
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#-r $InputFilename or error "\"$InputFilename\" not readable";
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debug "Input filename:", $InputFilename;
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}
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### option gscmd
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if ($::opt_gscmd) {
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debug "Switching from $GS to $::opt_gscmd";
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$GS = $::opt_gscmd;
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# validate GS \label{val_gscmd}
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if ($restricted) {
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$GS =~ /^(gs|mgs|gswin32c|gs386|gsos2)\z/
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or $GS =~ /^gs[\-_]?(\d|\d[\.-_]?\d\d)c?\z/
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or die error "Value of gscmd '$GS' not allowed in restricted mode.";
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}
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}
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### start building GS command line for the pipe
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my @GS = ($GS);
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push @GS, qw(-q -dNOPAUSE -dSAFER -sDEVICE=pdfwrite);
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### option outfile
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my $OutputFilename = $::opt_outfile;
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if ($OutputFilename eq "") {
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if ($::opt_gs) {
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$OutputFilename = $InputFilename;
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if (!$::opt_filter) {
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my $ds = ($^O eq "MSWin32" || $^O eq "cygwin") ? '\\/' : '/';
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$OutputFilename =~ s/\.[^\.$ds]*$//;
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$OutputFilename .= ".pdf";
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}
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} else {
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$OutputFilename = "-"; # no ghostscript, write to standard output
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}
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}
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if ($::opt_filter) {
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debug "Filtering: will write standard output";
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$OutputFilename = "-";
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} else {
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debug "Output filename:", $OutputFilename;
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}
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push @GS, "-sOutputFile=$OutputFilename";
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### options compress, embed, res, autorotate
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push @GS, ('-dPDFSETTINGS=/prepress', '-dMaxSubsetPct=100',
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'-dSubsetFonts=true', '-dEmbedAllFonts=true') if $::opt_embed;
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push @GS, '-dUseFlateCompression=false' unless $::opt_compress;
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push @GS, "-r$::opt_res" if $::opt_res;
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$resmsg= $::opt_res ? $::opt_res : "[use gs default]";
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push @GS, "-dAutoRotatePages=/$::opt_autorotate" if $::opt_autorotate;
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$rotmsg = $::opt_autorotate ? $::opt_autorotate : "[use gs default]";
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# \label{val_autorotate}
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error "Invalid value for autorotate: '$::opt_autorotate' "
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. "(use 'All', 'None' or 'PageByPage')."
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if ($::opt_autorotate and
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not $::opt_autorotate =~ /^(None|All|PageByPage)\z/);
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### option BoundingBox types
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my $BBName = "%%BoundingBox:";
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!($::opt_hires and $::opt_exact) or
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error "Options --hires and --exact cannot be used together";
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$BBName = "%%HiResBoundingBox:" if $::opt_hires;
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$BBName = "%%ExactBoundingBox:" if $::opt_exact;
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debug "BoundingBox comment:", $BBName;
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### validate output file name in restricted mode \label{openout_any}
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use File::Spec::Functions qw(splitpath file_name_is_absolute);
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if ($restricted) {
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# use the equivalent of openout_any = p
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# (see opennameok() web2c/lib/texmfmp.c)
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# Well, for now, be even more paranoid: don't allow absolute path at all
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my $ok = 1;
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# disallow opening dot-files on Unix
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unless ($^O eq "MSWin32") {
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my ($drive, $path, $basename) = splitpath($OutputFilename);
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$ok = 0 if $basename =~ /^\./;
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}
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# disallow absolute path
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$ok = 0 if file_name_is_absolute($OutputFilename);
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# disallow colon on Windows. It could be used either after a drive
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# (like "a:dir\file") or for an alternate data stream (like
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# "file:ads").
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if ($^O eq "MSWin32" || $^O eq "cygwin") {
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$ok = 0 if $OutputFilename =~ /:/;
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}
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# disallow going to parent directory
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my $ds = ($^O eq "MSWin32" || $^O eq "cygwin") ? qr([\\/]) : qr(/);
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$ok = 0 if $OutputFilename =~ /^\.\.$ds|$ds\.\.$ds/;
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# we passed all tests
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die error "Output filename '$OutputFilename' not allowed in restricted mode." unless $ok;
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}
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### option gs
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if ($::opt_gs) {
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debug "Ghostscript command:", $GS;
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debug "Compression:", ($::opt_compress) ? "on" : "off";
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debug "Embedding:", ($::opt_embed) ? "on" : "off";
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debug "Rotation:", $rotmsg;
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debug "Resolution:", $resmsg;
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}
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### emacs-page
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### open input file
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if ($::opt_filter) {
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open(IN, '<-') || error("Cannot open stdin: $!");
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} else {
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open(IN, '<', $InputFilename) || error("Cannot open $InputFilename: $!");
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}
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binmode IN;
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### open output file
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my $outname; # used in error message at end
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my $tmp_filename; # temporary file for windows
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my $OUT; # filehandle for output (GS pipe or temporary file)
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use File::Temp 'tempfile';
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if ($::opt_gs) {
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unless ($^O eq 'MSWin32' || $^O eq 'cygwin') { # list piped open works
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push @GS, qw(- -c quit);
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debug "Ghostscript pipe:", join(' ', @GS);
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open($OUT, '|-', @GS) or error "Cannot open Ghostscript for piped input";
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} else { # use a temporary file on Windows/Cygwin.
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($OUT, $tmp_filename) = tempfile(UNLINK => 1);
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debug "Using temporary file '$tmp_filename'";
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}
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$outname = $GS;
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}
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else {
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open($OUT, '>', $OutputFilename) or error "Cannot write \"$OutputFilename\"";
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$outname = $OutputFilename;
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}
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binmode $OUT;
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# reading a cr-eol file on a lf-eol system makes it impossible to parse
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# the header and besides it will read the intire file into yor line by line
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# scalar. this is also true the other way around.
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### emacs-page
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### scan a block, try to determine eol style
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my $buf;
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my $buflen;
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my @bufarray;
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my $inputpos;
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# We assume 2048 is big enough.
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my $EOLSCANBUFSIZE = 2048;
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$buflen = read(IN, $buf, $EOLSCANBUFSIZE);
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if ($buflen > 0) {
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my $crlfpos;
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my $lfpos;
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my $crpos;
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$inputpos = 0;
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# remove binary junk before header
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# if there is no header, we assume the file starts with ascii style and
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# we look for a eol style anyway, to prevent possible loading of the
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# entire file
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if ($buf =~ /%!/) {
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# throw away binary junk before %!
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$buf =~ s/(.*?)%!/%!/o;
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$inputpos = length($1);
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}
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$lfpos = index($buf, "\n");
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$crpos = index($buf, "\r");
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$crlfpos = index($buf, "\r\n");
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if ($crpos > 0 and ($lfpos == -1 or $lfpos > $crpos+1)) {
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# The first eol was a cr and it was not immediately followed by a lf
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$/ = "\r";
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debug "The first eol character was a CR ($crpos) and not immediately followed by a LF ($lfpos)";
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|
}
|
|
|
|
# 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);
|
|
|
|
# Some extra magic is needed here: if we set $/ to \r, Perl's re engine
|
|
# still thinks eol is \n in regular expressions (not very nice) so we
|
|
# cannot split on ^, but have to split on a look-behind for \r.
|
|
if ($/ eq "\r") {
|
|
@bufarray = split(/(?<=\r)/ms, $buf); # split after \r
|
|
}
|
|
else {
|
|
@bufarray = split(/^/ms, $buf);
|
|
}
|
|
}
|
|
|
|
### getline
|
|
sub getline
|
|
{
|
|
if ($#bufarray >= 0) {
|
|
$_ = shift(@bufarray);
|
|
}
|
|
else {
|
|
$_ = <IN>;
|
|
}
|
|
$inputpos += length($_) if defined $_;
|
|
return defined($_);
|
|
}
|
|
|
|
### 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 $height$/";
|
|
print $OUT "<< /PageSize [$width $height] >> setpagedevice$/";
|
|
print $OUT "gsave $xoffset $yoffset translate$/";
|
|
}
|
|
|
|
### emacs-page
|
|
### 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/o) {
|
|
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 = $inputpos;
|
|
debug "Current file position:", $pos;
|
|
|
|
# looking for %%BoundingBox
|
|
while (getline()) {
|
|
# skip over included documents
|
|
my $nestDepth = 0;
|
|
$nestDepth++ if /^%%BeginDocument/;
|
|
$nestDepth-- if /^%%EndDocument/;
|
|
if ($nestDepth == 0 && /^$BBName$BBValues/o) {
|
|
CorrectBoundingBox $1, $2, $3, $4;
|
|
$BBCorrected = 1;
|
|
last;
|
|
}
|
|
}
|
|
|
|
# go back
|
|
seek(IN, $pos, 0) or error "Cannot go back to line \"$BBName (atend)\"";
|
|
last;
|
|
}
|
|
|
|
# print header line
|
|
print $OUT $_;
|
|
}
|
|
}
|
|
|
|
### print rest of file
|
|
while (getline()) {
|
|
print $OUT $_;
|
|
}
|
|
|
|
### emacs-page
|
|
### close files
|
|
close(IN);
|
|
print $OUT "$/grestore$/" if $BBCorrected;
|
|
close($OUT);
|
|
|
|
### actually run GS if we were writing to a temporary file
|
|
if (defined $tmp_filename) {
|
|
push @GS, $tmp_filename;
|
|
push @GS, qw(-c quit);
|
|
debug "Ghostscript command:", join(' ', @GS);
|
|
system @GS;
|
|
}
|
|
|
|
# if ghostscript exited badly, we should too.
|
|
if ($? & 127) {
|
|
error(sprintf "Writing to $outname failed, signal %d\n", $? & 127);
|
|
} elsif ($? != 0) {
|
|
error(sprintf "Writing to $outname failed, error code %d\n", $? >> 8);
|
|
}
|
|
|
|
warning "BoundingBox not found" unless $BBCorrected;
|
|
debug "Done.";
|