From 6eb71614c019026159d1f881f88d3abf2425918a Mon Sep 17 00:00:00 2001 From: Karl Berry Date: Sun, 2 Jul 2006 23:07:28 +0000 Subject: re-add actual thumbpdf script git-svn-id: svn://tug.org/texlive/trunk@1753 c570f23f-e606-0410-a88d-b1316a301751 --- Master/bin/alpha-linux/thumbpdf | 1562 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 1562 insertions(+) create mode 100755 Master/bin/alpha-linux/thumbpdf (limited to 'Master/bin/alpha-linux') diff --git a/Master/bin/alpha-linux/thumbpdf b/Master/bin/alpha-linux/thumbpdf new file mode 100755 index 00000000000..832e4e76717 --- /dev/null +++ b/Master/bin/alpha-linux/thumbpdf @@ -0,0 +1,1562 @@ +eval '(exit $?0)' && eval 'exec perl -S $0 ${1+"$@"}' && eval 'exec perl -S $0 $argv:q' + if 0; +use strict; +$^W=1; # turn warning on +# +# thumbpdf.pl +# +# Copyright (C) 1999-2005 Heiko Oberdiek. +# +# This work may be distributed and/or modified under the +# conditions of the LaTeX Project Public License, either version 1.3 +# of this license or (at your option) any later version. +# The latest version of this license is in +# http://www.latex-project.org/lppl.txt +# and version 1.3 or later is part of all distributions of LaTeX +# version 2003/12/01 or later. +# +# This work has the LPPL maintenance status "maintained". +# +# This Current Maintainer of this work is Heiko Oberdiek. +# +# See file "readme.txt" for a list of files that belong to this project. +# +# This file "thumbpdf.pl" may be renamed to "thumbpdf" +# for installation purposes. +# +my $file = "thumbpdf.pl"; +my $program = uc($&) if $file =~ /^\w+/; +my $version = "3.8"; +my $date = "2005/07/06"; +my $author = "Heiko Oberdiek"; +my $copyright = "Copyright (c) 1999-2005 by $author."; +# +# Reqirements: Perl5, Ghostscript +# History: +# 1999/02/14 v1.0: First release. +# 1999/02/23 v1.1: +# * Looking for the media box to calculate the resolution +# for Ghostscript +# * new option --resolution +# 1999/03/01 v1.2: +# * optimization: indirect objects for length values removed. +# * "first line" from epstopdf +# 1999/03/12 v1.3: +# * Copyright: LPPL +# 1999/05/05 v1.4: +# * Detecting of cygwin32 environment. +# * Minor corrections of output of error messages. +# * Sharing RGB objects. +# 1999/06/13 v1.5: +# * gs detection extended. +# 1999/07/27 v1.6 +# 1999/08/08 v1.7: +# * \immediate before \pdfobj (pdfTeX 0.14a) +# 1999/09/09 v1.8 +# 1999/09/06 v1.9: +# * Check for direct /Length values (for jpg images) +# 2000/01/11 v1.10: +# * Bug fix: /Length (direct) as last entry. +# * Direct /Length in RGB objects supported. +# 2000/01/19 v1.11: +# * "for (my $j=0;...;...)" replaced by "my $j; for($j=0;...;...)", +# because there exist perl versions that have problems with. +# 2000/02/11 v1.12: +# * Option `clean' added. +# * The name of thumbnail data file: jobname.tnd, +# if thumbpdf is called: thumbpdf jobname[.pdf] [options] +# 2000/02/22 v2.0: +# * pdfmark support for dvips/ps2pdf route added. +# * .tpt replaces thumbdta.tex (for pdfTeX) +# .tpm (for pdfmark) +# .top replaces thumbopt.tex +# * Options `useps', `modes' added, +# `makedef' renamed to `makedata'. +# 2000/02/28 v2.1: +# * Environment variable `THUMBPDF' supported. +# 2000/03/07 v2.2: +# * Support for Distiller 3 and 4, the streams are uncompressed. +# * Call of gs is changed in order to show the currently processed +# page number of the pdf file. +# * Option --printgscmd creates the command line file `thumbpdf.gs' +# for the Ghostscript call. +# 2000/03/22 v2.3: +# * Bug fix: --useps now works. +# 2000/04/10 v2.4: +# * Fix for ActiveState Perl 5.6.0: uc line changed, fork removed. +# (Thanks to Andreas Buehmann .) +# * Version test for thumbpdf.tex added for users that +# mix versions, sigh. +# 2000/07/29 v2.5: +# * `save' trick in call of ghostscript. +# * Undocumented option --gspages added. +# 2000/09/27 v2.6 +# 2000/10/27 v2.7: +# * -dFIXEDMEDIA=0 added in gs call +# 2001/01/12 v2.8: +# * Bug fix in dvips mode and active option `level2': +# pack parameter corrected for little-endian machines. +# * /Rotate in pdf pages: +# ghostscript versions around 6.01 have added a hack +# in /pdfshowpage_setpage, that ignores the /Rotate entry. +# A patch is added to disable the hack. +# * Ghostscript uses the MediaBox for calculating the +# page size. For version 6.50 a patch is added to use +# the /CropBox instead. +# 2001/03/29 v2.9: +# * Option --password added. +# 2001/04/02 v2.10 +# 2001/04/26 v2.11 +# * Option --antialias added (suggestion of Juergen Bausa). +# 2002/01/11 v3.0 +# * Syntax of option --antialias changed (see readme.txt). +# * Support for VTeX's PS mode added. +# * Greek mode added (see readme.txt). +# * Signal handlers added for cleanup. +# 2002/05/26 v3.1 +# * SIG_HUP unkown in Windows. +# * Bug fix: The signal function for __DIE__ "cleanup" aborts +# before the error message of "die" is printed. +# Replaced by "clean" that does not contain "exit 1". +# * Small bug fix in mode detection and mode "vtex" +# removed from list. "vtexpdfmark" was detected, +# "vtex" did not work and perhaps it will be used +# later for VTeX in PDF mode. +# 2002/05/26 v3.2 +# * Fix: "MacOS/X: darwin" is now not interpreted as +# Windows. +# 2003/03/19 v3.3 +# * Fix for gs 8.00 in mode dvips: +# THB_DistillerPatch also applied to ghostscript >= 8.00. +# 2003/06/06 v3.4 +# * Bug fix, two forgotten "pop"s added for Distiller case. +# 2004/10/24 v3.5 +# * Revert Cygwin detection: is unix (request by Jan Nieuwenhuizen). +# * LPPL 1.3. +# 2004/11/19 v3.6 +# * Bug fix for dvips mode and gs < 8.00 (/stackunderflow in pop). +# 2004/11/19 v3.7: +# * For easier debugging, the special thumbpdf objects of +# thumbpdf.pdf are now valid PDF objects (dictionaries). +# * Remove of extra '\n' before "endstream" that is added +# by pdfTeX 1.20a. +# 2005/07/06 v3.8: +# * Fix because of pdfTeX 1.30. +# + +### program identification +my $title = "$program $version, $date - $copyright\n"; + +### error strings +my $Error = "!!! Error:"; # error prefix + +### string constants for Ghostscript run +# get Ghostscript command name +my $GS = "gs"; +$GS = "gs386" if $^O =~ /dos/i; +$GS = "gsos2" if $^O =~ /os2/i; +$GS = "gswin32c" if $^O =~ /mswin32/i; + +# Windows detection (no SIGHUP) +my $Win = 0; +$Win = 1 if $^O =~ /mswin32/i; + +my $gspages = 1; +$gspages = 0 if $^O =~ /dos/i; + +### variables +my $jobname = ""; +my $jobfile = ""; +my $pdftexfile = ""; +my $pdfmarkfile = ""; +my $psext = ".ps"; +my $pdfext = ".pdf"; +my $pdftexext = ".tpt"; +my $pdfmarkext = ".tpm"; +my $thumbprefix = "thb"; +my $envvar = "THUMBPDF"; +my $pdffile = "thumbpdf.pdf"; +my $logfile = "thumbpdf.log"; +my $texfile = "thumbpdf"; +my $package = "thumbpdf.sty"; +my $readme = "readme.txt"; +my $gscnffile = "thumbpdf.gs"; +my $gssection = "section I. `Known Problems'"; +my @cleanlist = (); +my $resolution = 9; +my $mode_pdftex = 0; +my $mode_pdfmark = 0; +my $antialias_default = "4"; +my @arglist = @ARGV; +my $gskidrunning = 0; + +### option variables +my @bool = ("false", "true"); +$::opt_device = "png16m"; +$::opt_compress = "10"; +$::opt_resolution = ""; +$::opt_modes = "pdftex"; +$::opt_gscmd = ""; +$::opt_level2 = 0; +$::opt_help = 0; +$::opt_quiet = 0; +$::opt_debug = 0; +$::opt_verbose = 0; +$::opt_useps = 0; +$::opt_printgscmd = 0; +$::opt_gspages = $gspages; # undocumented +$::opt_makepng = 1; +$::opt_makepdf = 1; +$::opt_makedata = 1; +$::opt_clean = 1; +$::opt_password = ""; +$::opt_antialias = $antialias_default; +$::opt_greek = 0; + +my $usage = <<"END_OF_USAGE"; +${title}Syntax: \L$program\E [options] +Function: Support of thumbnails for pdfTeX or dvips/ps2pdf (pdfmark). + Thumbnails are generated by Ghostscript and the result is + written to data files for package `$package': + `$pdftexext' (pdfTeX), `$pdfmarkext' (pdfmark) +Options: (defaults:) + --help print usage + --(no)quiet suppress messages ($bool[$::opt_quiet]) + --(no)verbose verbose printing ($bool[$::opt_verbose]) + --(no)debug debug informations ($bool[$::opt_debug]) + --(no)makepng make thumbnails `$thumbprefix*.png' ($bool[$::opt_makepng]) + --(no)makepdf make `$pdffile' with thumbnails as images ($bool[$::opt_makepdf]) + --(no)makedata make data file(s) for package `$package' ($bool[$::opt_makedata]) + --(no)clean clear temp files ($bool[$::opt_clean]) + --(no)useps `makepng' uses `.ps' instead of `.pdf' file ($bool[$::opt_useps]) + --(no)level2 `.tpm' with ps level 2 features ($bool[$::opt_level2]) + --(no)greek text in greek style (experimental) ($bool[$::opt_greek]) + --antialias [num2] anti-aliasing, 0 = disable, 4 = max ($::opt_antialias) + --device|png [png] Ghostscript device for thumbnails, + dev = mono, gray, 16, 256, 16m ($::opt_device) + --resolution thumbnail resolution for makepng ($resolution) + --compress thumbnail compress level, n = 0..10 ($::opt_compress) + --modes [,mode] mode=pdftex|pdfmark|dvips|ps2pdf| + vtexpdfmark|all ($::opt_modes) + --password apassword for an encrypted pdf file ($::opt_password) +END_OF_USAGE + +### environment variable THUMBPDF +if ($ENV{$envvar}) { + unshift(@ARGV, split(/\s+/, $ENV{$envvar})); +} + +### process options +my @OrgArgv = @ARGV; +use Getopt::Long; +GetOptions( + "help!", + "quiet!", + "debug!", + "verbose!", + "device|png=s", + "gscmd=s", + "level2!", + "compress=i", + "resolution=f", + "modes=s", + "useps!", + "printgscmd!", + "gspages!", + "makepng!", + "makepdf!", + "makedata!", + "clean!", + "password=s", + "antialias=s", + "greek!" +) or die $usage; +!$::opt_help or die $usage; +@ARGV < 2 or die "$usage$Error Too many files!\n"; +@ARGV == 1 or die "$usage$Error Missing jobname!\n"; + +$::opt_device = "png$::opt_device" unless $::opt_device =~ /^png/; +$::opt_quiet = 0 if $::opt_verbose; +$::opt_clean = 0 if $::opt_debug or !$::opt_makepdf or !$::opt_makedata; + +$::opt_compress = 0 if $::opt_compress < 0; +$::opt_compress = 10 if $::opt_compress > 10; +my $J = "^^J"; +$J = "" if $::opt_compress == 10; + +$::opt_antialias = $antialias_default if $::opt_antialias eq ""; +$::opt_antialias =~ /^[0124][0124]?$/ or + die "$usage$Error Wrong value for option --antialias!\n"; +$::opt_antialias .= $::opt_antialias if length($::opt_antialias) < 2; +my $AntiAliasText = substr($::opt_antialias, 0, 1); +my $AntiAliasGraphics = substr($::opt_antialias, 1, 1); +$AntiAliasText = "1" if $AntiAliasText eq "0"; +$AntiAliasGraphics = "1" if $AntiAliasGraphics eq "0"; + +$GS = $::opt_gscmd if $::opt_gscmd; +$gspages = $::opt_gspages; + +### get modes +$::opt_modes = "\L$::opt_modes\E"; +$::opt_modes =~ s/dvips/pdfmark/g; +$::opt_modes =~ s/ps2pdf/pdfmark/g; +$::opt_modes =~ s/vtexpdfmark/pdfmark/g; +$::opt_modes =~ s/vtexpdfmark/pdfmark/g; +if ($::opt_modes =~ /pdftex/) +{ + $mode_pdftex = 1; + $::opt_modes =~ s/pdftex//g; +} +if ($::opt_modes =~ /pdfmark/) +{ + $mode_pdfmark = 1; + $::opt_modes =~ s/pdfmark//g; +} +if ($::opt_modes =~ /all/) +{ + $mode_pdftex = 1; + $mode_pdfmark = 1; + $::opt_modes =~ s/all//g; +} +$::opt_modes =~ s/\s+//g; +$::opt_modes =~ s/,+/,/g; +$::opt_modes =~ s/^,//; +$::opt_modes =~ s/,$//; +if ($::opt_modes ne "") +{ + die "$usage$Error Unknown mode(s): `$::opt_modes'\n"; +} +if ($::opt_makedata) +{ + $mode_pdftex or $mode_pdfmark or + die "$usage$Error Missing mode!\n"; +} + +### get jobname +$jobname = $ARGV[0]; +if ($::opt_useps) +{ + $jobname =~ s/\.ps$//i; + $jobname =~ s/\\/\//g; + $jobfile = $jobname . $psext; +} +else +{ + $jobname =~ s/\.pdf$//i; + $jobname =~ s/\\/\//g; + $jobfile = $jobname . $pdfext; +} +$pdftexfile = $jobname . $pdftexext; +$pdfmarkfile = $jobname . $pdfmarkext; + +print $title unless $::opt_quiet; + +print "* jobname: `$jobname'\n" if $::opt_verbose; + +if ($::opt_debug) { + print <<"END_DEB"; +* OSNAME: $^O +* PERL_VERSION: $] +* ARGV: @OrgArgv +END_DEB +} + +### set signals +$SIG{__DIE__} = \&clean; +setsignals(\&cleanup); + +my $MaxThumb = 0; + +### +### make thumbnails +### +if ($::opt_makepng) +{ + print "*** make png files / run Ghostscript ***\n" + unless $::opt_quiet or $::opt_printgscmd; + if ($::opt_useps) + { + print "* ps file: $jobfile\n" if $::opt_verbose; + } + else + { + print "* pdf file: $jobfile\n" if $::opt_verbose; + } + print "* Ghostscript command: `$GS'\n" . + "* Ghostscript png device: `$::opt_device'\n" if $::opt_verbose; + + if ($::opt_resolution) + { + $resolution = $::opt_resolution + } + else + { + # looking for MediaBox + + my $max_x = 0; + my $max_y = 0; + { + my $MB = $jobfile; + open(MB, $MB) or die "$Error Cannot open `$MB'!\n"; + binmode(MB); + my $xy_patt = '[\-\.\d]'; + while () + { + if (/\/MediaBox\s*\[\s*($xy_patt+)\s+($xy_patt+)\s+($xy_patt+)\s+($xy_patt+)\s*\]/) + { + my $x = $3 - $1; + my $y = $4 - $2; + $max_x = $x if $x > $max_x; + $max_y = $y if $y > $max_y; + } + } + close(MB); + } + if ($max_x <= 0 || $max_y <= 0) + { + print "!!! Warning: MediaBox not found, " . + "using default resolution: $resolution DPI\n"; + } + else + { + print "* Max. Size of MediaBox: $max_x x $max_y\n" if $::opt_verbose; + + my $rx = 106 * 72 / $max_x; + my $ry = 106 * 72 / $max_y; + $resolution = $rx; + $resolution = $ry if $ry < $rx; + print "* Resolution: $resolution DPI\n" if $::opt_verbose; + } + } + +# Ghostscript's pdfshowpage_setpage is patched for solving +# some problems: +# * gs6.0* includes a hack that ignores the /Rotate entry +# in the PDF page, if OutputFile is set. +# gs6.50 does not need a fix and it is not applied, +# because pdfshowpage_setpage does not contain /OutputFile. +# * If /CropBox is set, then it should be used instead +# of the /MediaBox entry. Because the CropBox area should +# be part of the MediaBox, the MediaBox is overwritten +# with the CropBox values for generating the thumbnails. +# The fixes are only applied for versions >= 6.0, because +# gs5.50 gets a /PageSize problem with this fix. +# + my $SetPageHack = <<'SET_PAGE_HACK'; +currentglobal true setglobal +false +/product where { + pop + product (Ghostscript) search { + pop pop pop + revision 600 ge { + pop true + } if + }{pop} ifelse +} if +{ /pdfdict where { + pop + pdfdict begin + /pdfshowpage_setpage + [ pdfdict /pdfshowpage_setpage get + { dup type /nametype eq + { dup /OutputFile eq + { pop /AntiRotationHack + }{ + dup /MediaBox eq revision 650 ge and + { /THB.CropHack { + 1 index /CropBox pget + { 2 index exch /MediaBox exch put + } if + } def + /THB.CropHack cvx + } if + } ifelse + } if + } forall + ] cvx def + end + } if +} if +setglobal +SET_PAGE_HACK + + my $Greek = ""; + $Greek = <<'END_GREEK' if $::opt_greek; +currentglobal true setglobal +userdict begin + % * Patch for `show' + /THB_ORG_show {show} bind def + /THB_greekstring + /.charboxpath where + { + pop + { + currentpoint newpath moveto + true .charboxpath closepath fill + } bind def + }{ + { + { + 1 string dup 0 4 -1 roll put + dup stringwidth pop exch + true charpath flattenpath pathbbox + 2 index sub exch 3 index sub exch rectfill + 0 rmoveto + } forall + } bind def + } ifelse + /show { + currentfont /FontType get 1 eq + { + dup + gsave + % assuming white background + [ currentrgbcolor ] + { 1 add 2 div } forall + setrgbcolor + THB_greekstring + grestore + stringwidth pop 0 rmoveto + }{ + THB_ORG_show + } ifelse + } bind def + + % * Patch for the PDF case + userdict /GS_PDF_ProcSet known + { + % GS_PDF_ProcSet is readonly, so it will be copied first + GS_PDF_ProcSet length 10 add dict dup + GS_PDF_ProcSet { + put dup + } forall + /GS_PDF_ProcSet exch def + dup + begin + % `setshowstate' contains the use of `show', so it has to + % be overwritten, because it was defined with `bind'. + % The definition is taken from `pdf_ops.ps'. + revision 710 lt + { % 5.50, 6.51, 7.00, 7.02 + +/setshowstate + { WordSpacing 0 eq TextSpacing 0 eq and + { TextRenderingMode 0 eq + { { setfillstate show } } + { { false charpath textrenderingprocs TextRenderingMode get exec } } + ifelse + } + { TextRenderingMode 0 eq + { WordSpacing 0 eq + { { setfillstate TextSpacing exch 0 exch ashow } } + { TextSpacing 0 eq + { { setfillstate WordSpacing exch 0 exch 32 exch widthshow } } + { { setfillstate WordSpacing exch TextSpacing exch 0 32 4 2 roll 0 exch awidthshow } } + ifelse + } + ifelse + } + { { WordSpacing TextSpacing + % Implement the combination of t3 and false charpath. + % Note that we must use cshow for this, because we + % can't parse multi-byte strings any other way. + % Stack: string xword xchar + { pop pop (x) dup 0 3 index put false charpath + % Stack: xword xchar ccode + 3 copy 32 eq { add } { exch pop } ifelse 0 rmoveto pop + } + 4 -1 roll cshow pop pop + textrenderingprocs TextRenderingMode get exec + } + } + ifelse + } + ifelse /Show gput + } bdef + + }{ % 7.10 + +/setshowstate + { WordSpacing 0 eq TextSpacing 0 eq and + { TextRenderingMode 0 eq + { { setfillstate show } } + { { false charpath textrenderingprocs TextRenderingMode get exec } } + ifelse + } + { TextRenderingMode 0 eq + { WordSpacing 0 eq + { { setfillstate TextSpacing 0 Vexch 3 -1 roll ashow } } + { TextSpacing 0 eq + { { setfillstate WordSpacing 0 Vexch 32 4 -1 roll widthshow } } + { { setfillstate WordSpacing 0 Vexch 32 + TextSpacing 0 Vexch 6 -1 roll awidthshow } } + ifelse + } + ifelse + } + { { WordSpacing TextSpacing + % Implement the combination of t3 and false charpath. + % Note that we must use cshow for this, because we + % can't parse multi-byte strings any other way. + % Stack: string xword xchar + { pop pop (x) dup 0 3 index put false charpath + % Stack: xword xchar ccode + 3 copy 32 eq { add } { exch pop } ifelse 0 Vexch rmoveto pop + } + 4 -1 roll cshow pop pop + textrenderingprocs TextRenderingMode get exec + } + } + ifelse + } + ifelse /Show gput + } bdef + + } ifelse + end + readonly pop + } if +end +setglobal +END_GREEK + + my $SetPassword = ""; + $SetPassword = "/PDFPassword($::opt_password)def" if $::opt_password; + + my $PSHeader = "save pop $SetPassword $SetPageHack $Greek"; + $PSHeader =~ s/%\s.*\n/ /g; + $PSHeader =~ s/\s+/ /g; + $PSHeader =~ s/\s+([\(\/\[\]\{\}])/$1/g; + $PSHeader =~ s/([\)\[\]\{\}])\s+/$1/g; + $PSHeader =~ s/\s+$//; + + my $AntiAlias = ""; + $AntiAlias = "\n-dTextAlphaBits=$AntiAliasText\n" . + "-dGraphicsAlphaBits=$AntiAliasGraphics" + if $::opt_antialias; + + my $gs_cmd = <<"GS_CMD_END"; +$GS$AntiAlias +-dNOPAUSE +-dBATCH +-sDEVICE=$::opt_device +-r$resolution +-sOutputFile=$thumbprefix%d.png +-c "$PSHeader" +-f $jobfile +GS_CMD_END + # The trick with `save' comes from `ps2pdf': + # Doing an initial `save' helps keep fonts from being flushed + # between pages. + + if ($::opt_printgscmd) + { + open(GSCNF, ">$gscnffile") or die "$Error Cannot open `$gscnffile'!\n"; + $gs_cmd =~ s/^[^\r\n]+[\r\n]+//; + print GSCNF $gs_cmd; + close(GSCNF); + my $options = "@arglist"; + $options =~ s/\s*--?pr[intgscmd]*\s*/ /i; + $options =~ s/^\s+//; + $options =~ s/\s+$//; + print <<"END_PERL" if $::opt_verbose; +* Perl interpreter: $^X +* Perl script: $0 +END_PERL + print <<"END_GS"; +1. Run `Ghostscript' manually: + ==> $GS \@$gscnffile +2. Call `thumbpdf' again with the additional option `--nomakepng': + ==> thumbpdf --nomakepng $options +END_GS + exit(0); + } + + chomp($gs_cmd); + $gs_cmd =~ s/\n/ /mg; + print "> $gs_cmd\n" if $::opt_verbose; + + if ($::opt_debug) + { + if ($gspages) + { + print "* Ghostscript with page numbers\n"; + } + else + { + print "* Ghostscript without page numbers\n"; + } + } + + setsignals(\&gscleanup); + my $capture = ""; + if ($gspages) + { + my $newline = 0; + open(KID, "$gs_cmd|") or die "$Error Cannot open Ghostscript ($!)!\n"; + *::GSKID = *KID; + $gskidrunning = 1; + my $orgbar = $|; + $|=1; + while () + { + $capture .= $_; + if ($::opt_verbose) + { + print; + } + else + { + if (!$::opt_quiet) + { + print if /^Processing pages/; + if (/^Page\s+(\d+)/) + { + print " " if $newline; + $newline = 1; + print "[$1]"; + } + } + } + } + $gskidrunning =0; + if (!close(KID)) + { + if ($!) + { + die "$Error Closing Ghostscript ($!)!\n"; + } + else + { + my $exitvalue = $? >> 8; + die "$Error Closing Ghostscript (exit status: $exitvalue)!\n"; + } + } + print "\n" if $newline; + $| = $orgbar; + } + else # without pages + { + $capture = `$gs_cmd`; + if (!defined($capture)) + { + die "$Error Cannot execute Ghostscript!\n"; + } + print $capture if $::opt_verbose; + } + + if ($capture =~ /Error:\s*(.*)\n/) + { + die <<"END_DIE"; +$Error `$1' (Ghostscript)! +See `$readme', $gssection, for further information. +END_DIE + } + if ($capture =~ /Unknown device:\s*(.*)\n/) + { + die "$Error Unknown device `$1' (Ghostscript)!\n"; + } + if ($?) + { + my $exitvalue = $?; + if ($exitvalue > 255) + { + $exitvalue >>= 8; + die "$Error Closing Ghostscript (exit status: $exitvalue)!\n"; + } + die "$Error Closing Ghostscript ($exitvalue)!\n"; + } + if ($capture =~ /Processing pages \d+ through (\d+)./) + { + $MaxThumb = $1; + } + print "* max. page: $MaxThumb\n" if $::opt_debug; + setsignals(\&cleanup); +} + +### +### make thumbpdf.pdf file +### +if ($::opt_makepdf) +{ + print "*** make `$pdffile' / run pdfTeX ***\n" unless $::opt_quiet; + + if ($MaxThumb > 0) + { + my $i; + for ($i=1; $i<=$MaxThumb; $i++) + { + push(@cleanlist, "$thumbprefix$i.png"); + } + } + else + { + # get max thumb number to speed up the pdfTeX run + $MaxThumb = 0; + foreach (glob("$thumbprefix*.png")) + { + next unless /$thumbprefix(\d+).png/; + $MaxThumb = $1 if $1 > $MaxThumb; + push(@cleanlist, $_); + } + } + + push(@cleanlist, $logfile); + push(@cleanlist, $pdffile); + + my $compress = $::opt_compress; + $compress = 9 if $::opt_compress == 10; + my $cmd = "pdftex \"" . + "\\nonstopmode" . + "\\pdfcompresslevel$compress" . + "\\def\\thumbjob{$jobname}" . + "\\def\\thumbmax{$MaxThumb}" . + "\\input $texfile" . + "\""; + print "> $cmd\n" if $::opt_verbose; + my @capture = `$cmd`; + if (!defined(@capture)) + { + die "$Error Cannot execute pdfTeX!\n"; + } + if ($::opt_verbose) + { + print @capture; + } + else + { + foreach (@capture) + { + print if /^!\s/; + } + } + if ($?) + { + my $exitvalue = $?; + if ($exitvalue > 255) + { + $exitvalue >>= 8; + die "$Error Closing pdfTeX (exit status: $exitvalue)!\n"; + } + die "$Error Closing pdfTeX ($exitvalue)!\n"; + } + # test version + my $versionfound = 0; + foreach (@capture) + { + if (/File:.*thumbpdf.*(\d\d\d\d\/\d\d\/\d\d)\s+v(\d+\.\d+)/) + { + $versionfound = 1; + if ($1 ne $date or $2 ne $version) { + print <<"END_WARN"; +!!! Warning: Version of `thumbpdf.tex' does not match with perl script! + Current `thumbpdf.tex': $1 v$2 + Please install version: $date v$version +END_WARN + } + } + } + print "!!! Warning: Version of `thumbpdf.tex' not found!\n" + if !$versionfound; + + $_ = pop(@cleanlist); +} + +### +### parse thumbpdf.pdf +### + +if ($::opt_makedata) +{ + push(@cleanlist, $pdffile); + + print "*** parse `$pdffile' ***\n" unless $::opt_quiet; + +### reading file and parse obj structure + + my @objno = (); # obj number + my @objdict = (); # boolean, object is dict + my @objtext = (); # text of object + my @objstream = (); # stream of object if any + my $maxobj = 0; + + my @getobjindex = (); # $getobj[obj number] ==> index for $obj...[index] + + # open file + my $PDF = $pdffile; + open(PDF, $PDF) or die "$Error Cannot open `$PDF'!\n"; + binmode(PDF); + my $lineno = 0; + + # read header + $_ = ; $lineno++; + $_ or die "$Error Cannot read header of `$PDF' or file is empty!\n"; + /^%PDF/ or die "$Error No PDF specification found!\n"; + print "* pdf header: $_" if ($::opt_debug); + + # read body objects + my $count = 0; + while () + { + $lineno++; + + # continue, if comment line (2nd line of PDF output by pdfTeX 1.30) + next if /^%/; + + # stop at xref + last if /^xref$/; + + # scan first obj line + /^(\d+)\s+0\s+obj\s*(<<)?$/ or + die "$Error `obj' expected on line $lineno!\n"; + $objno[$count] = $1; + $getobjindex[$1] = $count; + $objdict[$count] = ($2); # boolean (if $2 exists) + my $stream = 0; + print "* obj $objno[$count]" . + (($objdict[$count]) ? " (dict)" : "") . + "\n" if $::opt_debug; + + # get obj + $objtext[$count] = ""; + while () + { + $lineno++; + + if ($objdict[$count]) + { + if (/^>>/) + { + last if /^>>\s+endobj$/; # obj without stream + + # get stream + $_ = ; $lineno++; + /^stream$/ or die "$Error `stream' expected on line $lineno!\n"; + + print "* stream\n" if $::opt_debug; + $objstream[$count] = ""; + while () + { + $lineno++; + + if (/(.*)endstream$/) + { + $objstream[$count] .= $1; + last; + } + $objstream[$count] .= $_; + } + + $_ = ; $lineno++; + /^endobj$/ or die "$Error `endobj' expected on line $lineno!\n"; + last; + } + } + else # no dict + { + last if /^endobj$/; + } + $objtext[$count] .= $_; + } + $count++; + } + close(PDF); + $maxobj = $count; + print "* $maxobj objects found.\n" if $::opt_debug; + +### get thumbnail page numbers + my @thumbpageno = (); + my $found = 0; + foreach (@objtext) + { + if (/^<<\/ListThumbs\s+(.+)>>$/) + { + $_ = $1; + chomp; + @thumbpageno = split / /; # split(/ /, $_); + print "* ListThumbs: @thumbpageno\n" if $::opt_debug; + $found = 1; + last; + } + } + $found or die "$Error `/ListThumbs' not found!\n"; + { + my $j; + for ($j=0; $j<@thumbpageno; $j++) + { + $thumbpageno[$j] = $1 if $thumbpageno[$j] =~ /^{(.+)}$/; + } + } + +### identify thumb objects + + my @thumbobj = (); # index for @obj... with image stream + my @thumblength = (); # stream length values + my @thumbrgbobj = (); # index for @obj... with rgb stream + my @thumbrgblength = (); # rgb stream length values + my $maxthumb = 0; + + $count = 0; + my $i; + for ($i=0; $i<$maxobj; $i++) + { + if ($objtext[$i] =~ + /^\/Type\s+\/XObject\n\/Subtype\s+\/Image\n/m) + { + $thumbobj[$count] = $i; + $_ = $'; + $objtext[$i] = $_; + + # check width and height + /\/Width\s+(\d+)\n\/Height\s+(\d+)/m or + die "$Error width/height of thumbnail not found!\n"; + print "* Size: $1x$2\n" if $::opt_debug; + print "==> Width ($1) " . + "of thumbnail `$thumbpageno[$count]' " . + "is larger than recommended (106).\n" + if $1 > 106; + print "==> Height ($2) " . + "of thumbnail `$thumbpageno[$count]' " . + "is larger than recommended (106).\n" + if $2 > 106; + + # get stream length + if (/\/Length\s+(\d+)\s+([\/\>]|$)/m) + { + $thumblength[$count] = $1; + print "* Length (direct): $1\n" if $::opt_debug; + # remove whitespace after length obj + $objtext[$i] =~ s/(\/Length\s+\d+)\s+\n/$1\n/; + } + else # looking for indirect reference + { + /\/Length\s+(\d+)\s+0\s+R/m or + die "$Error `/Length' entry not found!\n"; + # save obj text for later correction + my $objpre = $`; + my $objpost = $'; + # look for length obj + $getobjindex[$1] or die "$Error Length obj not found!\n"; + $objtext[$getobjindex[$1]] =~ /^(\d+)$/m or + die "$Error length value not found!\n"; + $thumblength[$count] = $1; + print "* Length (indirect): $1\n" if $::opt_debug; + # insert obj length directly: + $objtext[$i] = $objpre . "/Length $1" . $objpost; + } + + # remove \n from end of stream + if ($thumblength[$count] < length($objstream[$i])) { + chop($objstream[$i]); + } + + # check /Indexed /DeviceRGB + if ($objtext[$i] =~ + /\/ColorSpace\s+\[\/Indexed\s+\/DeviceRGB\s+(\d+)\s+(\d+)\s+0\s+R\]/m) + { + # correct thumb object text + $objtext[$i] = + "$`/ColorSpace [/Indexed /DeviceRGB $1 \\the\\pdflastobj\\ 0 R]$'"; + # get RGB obj number + $getobjindex[$2] or die "$Error RGB object not found!\n"; + $_ = $getobjindex[$2]; + $thumbrgbobj[$count] = $_; + # get stream length + if ($objtext[$_] =~ /\/Length\s+(\d+)\s+([\/\>]|$)/m) + { + $thumbrgblength[$count] = $1; + print "* RGB length (direct): $1\n" if $::opt_debug; + $objtext[$_] =~ s/(\/Length\s+\d+)\s+\n/$1\n/; + } + else # looking for indirect reference + { + $objtext[$_] =~ /\/Length\s+(\d+)\s+0\s+R/m or + die "$Error Length entry of rgb object not found\n"; + # save obj text for later correction + my $objrgbpre = $`; + my $objrgbpost = $'; + # get rgb stream length + $getobjindex[$1] or die "$Error RGB length object not found!\n"; + $objtext[$getobjindex[$1]] =~ /^(\d+)$/m or + die "$Error length value not found!\n"; + $thumbrgblength[$count] = $1; + print "* RGB length (indirect): $1\n" if $::opt_debug; + # insert RGB object length directly: + $objtext[$_] = $objrgbpre . "/Length $1" . $objrgbpost; + } + } + + $count++; + } + } + $maxthumb = $count; + + if ($maxthumb != @thumbpageno) + { + my $pagecount = @thumbpageno; + die "$Error $maxthumb thumbnails found, but there should be $pagecount!\n"; + } + print "* $maxthumb thumbnails found.\n" if $::opt_verbose; + + +### +### write data files +### + + my $timestamp; + { + my ($sec, $min, $hour, $mday, $mon, $year) = localtime(); + $mon++; + $year += 1900; + $timestamp = sprintf("%04d/%02d/%02d %02d:%02d:%02d", + $year, $mon, $mday, $hour, $min, $sec); + } + if ($mode_pdftex) + { + print "*** write `$pdftexfile' (pdfTeX thumbnail data) ***\n" + unless $::opt_quiet; + my $DTA_PT = $pdftexfile; + open(DTA_PT, ">$DTA_PT") or die "$Error Cannot open `$DTA_PT'!\n"; + binmode(DTA_PT); + print DTA_PT <<"END_DTA"; +% File: $DTA_PT +% Producer: $program $version +% Mode: pdftex +% Date: $timestamp +END_DTA + } + my $maxpagethumb; + my $dictbegin; + if ($mode_pdfmark) + { + print "*** write `$pdfmarkfile' (pdfmark thumbnail data) ***\n" + unless $::opt_quiet; + my $DTA_PM = $pdfmarkfile; + open(DTA_PM, ">$DTA_PM") or die "$Error Cannot open `$DTA_PM'!\n"; + binmode(DTA_PM); + + # write tex part + print DTA_PM <<"END_DTA"; +% \\iffalse +% File: $DTA_PM +% Producer: $program $version +% Mode: pdfmark +% Date: $timestamp +% \\fi +END_DTA + + # looking for max. number of regular thumbnails + $maxpagethumb = $maxthumb; + for ($i=0; $i<$maxobj; $i++) + { + if ($objtext[$i] =~ /<<\/MaxThumbNumber\s+(\d+)>>/) + { + $maxpagethumb = $1; + last; + } + } + + # write TeX part + for ($i=$maxpagethumb; $i<$maxthumb; $i++) + { + print DTA_PM "% \\DefThisThumb{$thumbpageno[$i]}\n"; + } + + # write PostScript header + my $dictstart = <<'END_DICT'; + 4 dict begin + /enddict { + counttomark 2 idiv dup dict begin {def} repeat pop + currentdict end + } bind def +END_DICT + chomp($dictstart); + $dictbegin = "["; + my $dictend = "enddict"; + my $filter = ""; + my $read = "readhexstring"; + if ($::opt_level2) + { + $dictstart = " 3 dict begin"; + $dictbegin = "<<"; + $dictend = ">>"; + $filter = " /ASCII85Decode filter"; + $read = "readstring"; + } + + print DTA_PM <<"END_DTA"; +% \\endinput +% TeX part ends here + +% PostScript definitions +END_DTA + + my $PS_Header = <<"END_HEAD"; +% +% Default definition of pdfmark +/pdfmark where {pop} {userdict /pdfmark /cleartomark load put} ifelse +% +% Check the version of Ghostscript. If it is below 6.0, +% the commands, that produce the thumbnails, are defined +% to be dummies. +% +true +/product where { + pop + product (Ghostscript) search { + pop pop pop + revision 600 lt { + (!!! Warning (thumbpdf): Ghostscript 6.0 required for thumbnails!\\n) + print pop false + } if + }{pop} ifelse +} if +{ +% Syntax: thisTHB - +% thisTHB is used globally, so it is defined in the current +% dictionary (perhaps userdict should explicitly be set). + /thisTHB {[ exch /Thumb exch /PAGE pdfmark} bind def +$dictstart +% Syntax: pagethumb - + /pagethumb { + [ 3 1 roll $dictbegin exch /Thumb exch $dictend /PUT pdfmark + } bind def +% Syntax: +% streamobj - +% +% Distiller ignores the compression of previously compressed +% streams and uses its own settings. Therefore for Distiller +% the streams are uncompressed. +% Now ghostscript versions greater than 8 behave in the same way +% as Distiller. Therefore detection for this versions is added. +% The detection and patch for distiller require features of level 2 +% and the filter /FlateDecode (level 3), that is used by pdfTeX's +% compression. + /THB_DistillerPatch false def + /languagelevel where { + pop + languagelevel 2 ge { + product (Distiller) search {pop pop pop true}{pop false} ifelse + product (Ghostscript) search { + pop pop pop + revision 800 ge + }{pop false} ifelse + or + { + (FlateDecode) { + pop +% Syntax: THB_DistillerPatch false +% THB_DistillerPatch + /THB_DistillerPatch { + dup /Filter known { + dup dup /Filter get exch /Filter undef + }{false} ifelse + } bind def + } (FlateDecode) /Filter resourceforall + } if + } if + } if + /streamobj { + $dictend exch +% Stack: + 3 -1 roll dup +% Stack: + [ /_objdef 3 -1 roll /type /stream /OBJ pdfmark +% Stack: + dup dup 5 -1 roll +% Stack: + THB_DistillerPatch +% Stack: + [ 4 -2 roll /PUT pdfmark +% Stack: + [ 3 1 roll currentfile${filter} +% Stack: [ + 6 -1 roll string $read pop +% Stack: [ + exch dup type /booleantype ne {true} if {filter} if +% Stack: [ + /PUT pdfmark +% Stack: + [ exch /CLOSE pdfmark + } bind def +}{ +% Syntax: thisTHB - + /thisTHB {pop} bind def + 2 dict begin +% Syntax: pagethumb - + /pagethumb {pop pop} bind def +% Syntax: +% streamobj - + /streamobj { + cleartomark exch pop + string currentfile${filter} + exch $read pop pop + } bind def +} ifelse +END_HEAD + $PS_Header =~ s/%[^\r\n]*[\r\n]+//gm; + print DTA_PM $PS_Header; + print DTA_PM <<"END_DTA"; + +% adding thumbnails to pages +END_DTA + + for ($i=0; $i<$maxpagethumb; $i++) + { + print DTA_PM <<"END_DTA"; +{Page$thumbpageno[$i]} {THB$thumbpageno[$i]} pagethumb +END_DTA + } + print DTA_PM "\n% thumbnail data\n"; + } + + for ($i=0; $i<$maxthumb; $i++) + { + # rgb object + if ($thumbrgbobj[$i]) + { + # find the same rgb object + my $j; + for ($j=0; $j<$i; $j++) + { + next unless $thumbrgbobj[$j]; + next unless $objtext[$thumbrgbobj[$j]] eq + $objtext[$thumbrgbobj[$i]]; + next unless $objstream[$thumbrgbobj[$j]] eq + $objstream[$thumbrgbobj[$i]]; + last; + } + if ($j==$i) # not found + { + if ($mode_pdftex) + { + { + my $rgbstream = pdftexstream($objstream[$thumbrgbobj[$i]]); + my $dict = $objtext[$thumbrgbobj[$i]]; + if ($::opt_compress == 10) + { + chomp($dict); + $dict =~ s/\n([^\/])/^^J\n$1/mg; + $dict =~ s/[ ]+\//\//mg; + } + else + { + $dict =~ s/\n/^^J\n/mg; + } + print DTA_PT <<"END_DTA"; +\\immediate\\pdfobj{<<$J +$dict>>$J +stream^^J +$rgbstream +endstream} +\\DefRGB{$i} +END_DTA + } + } + if ($mode_pdfmark) + { + { + my $rgbstream = pdfmarkstream($objstream[$thumbrgbobj[$i]]); + my $rgblength = $thumbrgblength[$i]; + my $dict = $objtext[$thumbrgbobj[$i]]; + $dict =~ s/\/Length\s+\d+\s*//; + $dict =~ s/^\s+//; + $dict =~ s/\s+$//; + print DTA_PM <<"END_DTA"; +{RGB_$i} $rgblength $dictbegin +$dict +streamobj +$rgbstream +END_DTA + } + } + } + else # $j with same rgb obj + { + $objtext[$thumbobj[$i]] =~ + s/\\the\\pdflastobj/\\UseRGB{$j}/; + print "* Reuses RGB object $j for $i\n" if $::opt_debug; + } + } + + # thumb object + if ($mode_pdftex) + { + { + my $dict = $objtext[$thumbobj[$i]]; + if ($::opt_compress == 10) + { + chomp($dict); + $dict =~ s/\n([^\/])/^^J\n$1/mg; + $dict =~ s/[ ]+\//\//mg; + $dict =~ s/[ ]+\[/\[/mg; + } + else + { + $dict =~ s/\n/^^J\n/mg; + } + my $stream = pdftexstream($objstream[$thumbobj[$i]]); + print DTA_PT <<"END_DTA"; +\\immediate\\pdfobj{<<$J +$dict>>$J +stream^^J +$stream +endstream} +\\DefThumb{$thumbpageno[$i]} +END_DTA + } + } + if ($mode_pdfmark) + { + { + my $stream = pdfmarkstream($objstream[$thumbobj[$i]]); + my $length = $thumblength[$i]; + my $dict = $objtext[$thumbobj[$i]]; + $dict =~ s/\\the\\pdflastobj\\\s*\d+\s*R/{RGB_$i}/; + $dict =~ s/\\UseRGB{(\d+)}\\\s*\d+\s*R/{RGB_$1}/; + $dict =~ s/\/Length\s+\d+\s*//; + $dict =~ s/^\s+//; + $dict =~ s/\s+$//; + my $thismarker = ""; + $thismarker = "_", if $i >= $maxpagethumb; + print DTA_PM <<"END_DTA"; +{THB$thismarker$thumbpageno[$i]} $length $dictbegin +$dict +streamobj +$stream +END_DTA + } + } + } + + if ($mode_pdftex) + { + print DTA_PT "\\endinput\n"; + close(DTA_PT); + } + if ($mode_pdfmark) + { + print DTA_PM <<"END_DTA"; +end +% end of thumbnail data file +END_DTA + close(DTA_PM); + } +} + +sub pdftexstream +{ + my $str = ""; + my $mod = 0; + foreach (split(//, $_[0])) + { + my $num = ord($_); + if ($num == 13) { $str .= '\\/'; } + elsif ($num < 32) { $str .= '^^' . chr($num + 64); } + elsif ($num == 32) { $str .= '\\~'; } # space + elsif ($num == 37) { $str .= '\\%'; } # percent + elsif ($num == 92) { $str .= '\\\\'; } # backslash + elsif ($num == 94) { $str .= '\\+'; } # caret + elsif ($num == 123) { $str .= '\\{'; } # curly brace left + elsif ($num == 125) { $str .= '\\}'; } # curly brace right + else { $str .= $_; } + $mod++; + if ($mod == 26) + { + $mod = 0; + $str .= "\n"; + } + } + chomp $str; + return $str; +} + +sub pdfmarkstream +{ + my $str; + if ($::opt_level2) + { + my $s = $_[0]; + my $len = length($s); + $str = ""; + my $i; + for ($i=0; $i<$len-4; $i+=4) + { + $_ = ASCII85Encode(substr($s, $i, 4)); + s/!!!!!/z/; + $str .= $_; + } + my $r = $len % 4; + if ($r) + { + $_ = substr($s, $i, $r) . "\000\000\000"; + $_ = ASCII85Encode(substr($_, 0, 4)); + $str .= substr($_, 0, $r+1); + } + $str =~ s/(.{60})/$1\n/g; + chomp($str); + $str .= "~>"; + } + else + { + $str = uc(unpack('H*', $_[0])); + $str =~ s/(.{60})/$1\n/g; + chomp($str); + } + return $str; +} + +sub ASCII85Encode +{ + my $val = unpack("N", $_[0]); + my @c; + $c[4] = $val % 85 + 33; + $val = int($val/85); + $c[3] = $val % 85 + 33; + $val = int($val/85); + $c[2] = $val % 85 + 33; + $val = int($val/85); + $c[1] = $val % 85 + 33; + $c[0] = int($val/85) + 33; + return pack("C*", @c); +} + +sub setsignals { + my $func = $_[0]; + $SIG{'HUP'} = $func unless $Win; + $SIG{'INT'} = $func; + $SIG{'QUIT'} = $func; + $SIG{'TERM'} = $func; +} + +sub clean { + if ($::opt_clean) { + print "*** clear temp files ***\n" unless $::opt_quiet; + foreach (@cleanlist) { + unlink; + } + } +} + +sub cleanup { + print "\n" unless $::opt_quiet; + clean(); + exit 1; +} + +sub gscleanup { + print "\n" unless $::opt_quiet; + clean(); + close(::GSKID) if $gskidrunning; + foreach (glob("$thumbprefix*.png")) { + unlink; + } + exit 1; +} + +clean(); + +print "*** ready. ***\n" unless $::opt_quiet; + +__END__ -- cgit v1.2.3