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-rwxr-xr-xMaster/texmf-dist/scripts/epstopdf/epstopdf.pl474
1 files changed, 401 insertions, 73 deletions
diff --git a/Master/texmf-dist/scripts/epstopdf/epstopdf.pl b/Master/texmf-dist/scripts/epstopdf/epstopdf.pl
index 8df3a73351c..276eb3631b2 100755
--- a/Master/texmf-dist/scripts/epstopdf/epstopdf.pl
+++ b/Master/texmf-dist/scripts/epstopdf/epstopdf.pl
@@ -1,5 +1,5 @@
#!/usr/bin/env perl
-# $Id: epstopdf.pl 30419 2013-05-12 17:55:50Z karl $
+# $Id: epstopdf.pl 31784 2013-09-27 22:43:16Z karl $
# (Copyright lines below.)
#
# Redistribution and use in source and binary forms, with or without
@@ -25,24 +25,29 @@
# STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
-#
# ----------------------------------------------------------------
-#
-# This is a script to transform an EPS file such that:
-# a) it is guaranteed 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 input bounding box is not right, of course there will be problems.
-#
+# This is a script to transform an EPS file to PDF. Theoretically, any
+# Level 2 PS interpreter should work, although in practice using
+# Ghostscript is near-universal. Many more details below.
+#
# One thing not allowed for: the case of
# "%%BoundingBox: (atend)" when input is not seekable (e.g., from a pipe),
#
# emacs-page
# History
+# 2013/09/28 v2.20 (Heiko Oberdiek, and (a little) Karl Berry)
+# * New command line argument --(no)safer which allows setting
+# -dNOSAFER instead of -dSAFER (only for non-restricted).
+# * New command line argument --pdfsettings for
+# Ghostscript's -dPDFSETTINGS.
+# * New command line argument --(no)quiet.
+# * New command line argument --device for specifying a differnt
+# Ghostscript device (limited set of devices for restricted mode).
+# * New command line arguments --gsopts and --gsopt for adding
+# Ghostscript options.
+# * Full support of ghostscript's option -r, DPIxDPI added.
+# * Support for DOS EPS binary files (TN 5002) added.
+# * Removes PJL commands at start of file.
# 2013/05/12 v2.19 (Karl Berry)
# * explain option naming conventions (= defaults for Getopt::Long).
# 2012/05/22 v2.18 (Karl Berry)
@@ -89,10 +94,10 @@
# * Create source repository in TeX Live
# 2009/07/17 v2.9.11gw
# * Added -dSAFER to default gs options
-# TL2009 wants to use a restricted variant of -shell-escape,
-# allowing epstopdf to run. However without -dSAFER Ghostscript
-# allows writing to files (other than given in -sOutputFile)
-# and running commands (through Ghostscript pipe's language feature).
+# TL2009 wants to use a restricted variant of -shell-escape,
+# allowing epstopdf to run. However without -dSAFER Ghostscript
+# allows writing to files (other than given in -sOutputFile)
+# and running commands (through Ghostscript pipe's language feature).
# 2009/05/09 v2.9.10gw
# * Changed cygwin name for ghostscript to gs
# 2008/08/26 v2.9.9gw
@@ -152,11 +157,11 @@
#
# Originally by Sebastian Rahtz, for Elsevier Science
# with extra tricks from Hans Hagen's texutil and many more.
-# emacs-page
+### emacs-page
### program identification
my $program = "epstopdf";
-my $ident = '($Id: epstopdf.pl 30419 2013-05-12 17:55:50Z karl $) 2.19';
+my $ident = '($Id: epstopdf.pl 31784 2013-09-27 22:43:16Z karl $) 2.18';
my $copyright = <<END_COPYRIGHT ;
Copyright 2009-2013 Karl Berry et al.
Copyright 2002-2009 Gerben Wierda et al.
@@ -177,61 +182,221 @@ my $GS = $on_windows ? "gswin32c" : "gs";
my $restricted = 0;
$restricted = 1 if $0 =~ /repstopdf/;
+### default values
+my $default_device = 'pdfwrite';
+
### options
$::opt_autorotate = "None";
$::opt_compress = 1;
$::opt_debug = 0;
+$::opt_device= $default_device;
$::opt_embed = 1;
$::opt_exact = 0;
$::opt_filter = 0;
$::opt_gs = 1;
$::opt_gscmd = "";
+@::opt_gsopt = ();
$::opt_help = 0;
$::opt_hires = 0;
$::opt_outfile = "";
-$::opt_res = 0;
+$::opt_pdfsettings = "";
+$::opt_res = '';
$::opt_restricted = 0;
+$::opt_safer = 1;
+$::opt_quiet = 1;
$::opt_version = 0;
+sub gsopts { push (@::opt_gsopt, split (' ', $_[1])); }
+
+# known-safe Ghostscript options and values.
+my %optcheck = qw<
+ AlignToPixels 0|1
+ AntiAliasColorImages true|false
+ AntiAliasGrayImages true|false
+ AntiAliasMonoImages true|false
+ ASCII85EncodePages true|false
+ AutoFilterColorImages true|false
+ AutoFilterGrayImages true|false
+ AutoPositionEPSFiles true|false
+ AutoRotatePages /(None|All|PageByPage)
+ BATCH true
+ Binding /(Left|Right)
+ CannotEmbedFontPolicy /(OK|Warning|Error)
+ ColorConversionStrategy /(LeaveColorUnchanged|UseDeviceIndependentColor|UseDeviceIndependendColorForImages|sRGB|CMYK)
+ ColorImageDepth -1|1|2|4|8
+ ColorImageDownsampleThreshold 10(.0*)?|\d(.\d*)|\.\d+
+ ColorImageDownsampleType /(Average|Bicubic|Subsample|None)
+ ColorImageFilter /(DCTEncode|FlateEncode|JPXEncode)
+ ColorImageResolution \d+
+ COLORSCREEN true|0|false
+ CompatibilityLevel 1\.[0-7]
+ CompressFonts true|false
+ CompressPages true|false
+ ConvertCMYKImagesToRGB true|false
+ ConvertImagesToIndexed true|false
+ DefaultRenderingIntent /(Default|Perceptual|Saturation|AbsoluteColorimetric|RelativeColorimetric)
+ DetectBlends true|false
+ DetectDuplicateImages true|false
+ DITHERPPI \d+
+ DOINTERPOLATE true
+ DoThumbnails true|false
+ DownsampleColorImages true|false
+ DownsampleGrayImages true|false
+ DownsampleMonoImages true|false
+ EmbedAllFonts true|false
+ EmitDSCWarnings true|false
+ EncodeColorImages true|false
+ EncodeGrayImages true|false
+ EncodeMonoImages true|false
+ EndPage -?\d+
+ FIXEDRESOLUTION true
+ GraphicsAlphaBits 1|2|4
+ GrayImageDepth -1|1|2|4|8
+ GrayImageDownsampleThreshold \d+\.?\d*|\.\d+
+ GrayImageDownsampleType /(Average|Bicubic)
+ GrayImageFilter /(DCTEncode|FlateEncode|JPXEncode)
+ GrayImageResolution \d+
+ GridFitTT 0|1|2|3
+ HaveTransparency true|false
+ HaveTrueTypes true|false
+ ImageMemory \d+
+ LockDistillerParams true|false
+ LZWEncodePages true|false
+ MaxSubsetPct 100|[1-9][0-9]?
+ MaxClipPathSize \d+
+ MaxInlineImageSize \d+
+ MaxShadingBitmapSize \d+
+ MonoImageDepth -1|1|2|4|8
+ MonoImageDownsampleThreshold \d+\.?\d*|\.\d+
+ MonoImageDownsampleType /(Average|Bicubic|Subsample|None)
+ MonoImageFilter /(CCITTFaxEncode|FlateEncode|RunLengthEncode)
+ MonoImageResolution \d+
+ NOCIE true
+ NOEPS true
+ NOINTERPOLATE true
+ NOPSICC true
+ NOSUBSTDEVICECOLORS true|false
+ NOTRANSPARENCY true
+ OPM 0|1
+ Optimize true|false
+ ParseDSCComments true|false
+ ParseDSCCommentsForDocInfo true|false
+ PreserveCopyPage true|false
+ PreserveEPSInfo true|false
+ PreserveHalftoneInfo true|false
+ PreserveOPIComments true|false
+ PreserveOverprintSettings true|false
+ StartPage -?\d+
+ PatternImagemask true|false
+ PDFSETTINGS /(screen|ebook|printer|prepress|default)
+ PDFX true|false
+ PreserveDeviceN true|false
+ PreserveSeparation true|false
+ QUIET true
+ SHORTERRORS true
+ SubsetFonts true|false
+ TextAlphaBits 1|2|4
+ TransferFunctionInfo /(Preserve|Remove|Apply)
+ UCRandBGInfo /(Preserve|Remove)
+ UseCIEColor true|false
+ UseFlateCompression true|false
+ UsePrologue true|false
+>;
+# In any case not suitable for restricted:
+# -dDOPS
+
+### restricted devices
+# More or less copied from ghostscript's configure:
+# BMP_DEVS, JPEG_DEVS, PNG_DEVS, TIFF_DEVS, PCX_DEVS, PBM_DEVS
+# PS_DEVS (without text devices)
+my @restricted_devlist = ($default_device);
+my @restricted_devlist_ext = qw[
+ bmpmono bmpgray bmpsep1 bmpsep8 bmp16 bmp256 bmp16m bmp32b
+ jpeg jpeggray jpegcmyk
+ pbm pbmraw pgm pgmraw pgnm pgnmraw pnm pnmraw ppm ppmraw
+ pkm pkmraw pksm pksmraw pam pamcmyk4 pamcmyk32 plan plang
+ planm planc plank
+ pcxmono pcxgray pcx16 pcx256 pcx24b pcxcmyk pcx2up
+ png16 png16m png256 png48 pngalpha pnggray pngmono
+ psdf psdcmyk psdrgb pdfwrite pswrite ps2write epswrite psgray psmono psrgb
+ tiffs tiff12nc tiff24nc tiff48nc tiff32nc tiff64nc tiffcrle tifflzw
+ tiffpack tiffgray tiffsep tiffsep1 tiffscaled tiffscaled8 tiffscaled24
+ svg svgwrite
+];
+push (@restricted_devlist, @restricted_devlist_ext);
+my %restricted_devlist = ( map {$_, 1} @restricted_devlist );
+
### usage
my @bool = ("false", "true");
my $resmsg = $::opt_res ? $::opt_res : "[use gs default]";
my $rotmsg = $::opt_autorotate ? $::opt_autorotate : "[use gs default]";
+my $defgsopts = "-q -dNOPAUSE -sDEVICE=pdfwrite";
my $usage = <<"END_OF_USAGE";
${title}Usage: $program [OPTION]... [EPSFILE]
-Convert EPS to PDF, by default using Ghostscript.
+Convert EPS to PDF (or other formats), by default using Ghostscript.
+
+The resulting output is guaranteed to start at the 0,0 coordinate, and
+sets a page size exactly corresponding to the BoundingBox. Thus, the
+result does not need any cropping, and the PDF MediaBox is correct.
+
+If the bounding box in the input EPS is not right, of course there will
+be resulting problems.
Options:
--help display this help and exit
--version display version information and exit
-
- --outfile=FILE write result to FILE
- --(no)compress use compression (default: $bool[$::opt_compress])
- --(no)debug write debugging info (default: $bool[$::opt_debug])
- --(no)embed embed fonts (default: $bool[$::opt_embed])
- --(no)exact scan ExactBoundingBox (default: $bool[$::opt_exact])
- --(no)filter read standard input (default: $bool[$::opt_filter])
- --(no)gs run ghostscript (default: $bool[$::opt_gs])
- --(no)hires scan HiResBoundingBox (default: $bool[$::opt_hires])
- --gscmd=VAL pipe output to VAL (default: $GS)
- --res=DPI set image resolution (default: $resmsg)
- --autorotate=VAL set AutoRotatePages (default: $rotmsg)
- Recognized VAL choices: None, All, PageByPage;
- for EPS files, PageByPage is equivalent to All.
- --restricted use restricted mode (default: $bool[$restricted])
-
-Examples all equivalently producing test.pdf:
- * $program test.eps
- * cat test.eps | $program --filter >test.pdf
- * cat test.eps | $program -f -o=test.pdf
-Example to look for HiResBoundingBox and produce corrected PostScript:
- * $program -d --nogs --hires test.ps >testcorr.ps
+ --outfile=FILE write result to FILE (default based on input name)
+ --(no)debug write debugging info (default: $bool[$::opt_debug])
+ --(no)exact scan ExactBoundingBox (default: $bool[$::opt_exact])
+ --(no)filter read standard input (default: $bool[$::opt_filter])
+ --(no)gs run ghostscript (default: $bool[$::opt_gs])
+ --(no)hires scan HiResBoundingBox (default: $bool[$::opt_hires])
+ --restricted use restricted mode (default: $bool[$restricted])
+
+Options for Ghostscript:
+ --gscmd=VAL pipe output to VAL (default: $GS)
+ --gsopt=VAL single option for gs (see below)
+ --gsopts=VAL options for gs (see below)
+ --autorotate=VAL set AutoRotatePages (default: $rotmsg)
+ recognized VAL choices: None, All, PageByPage;
+ for EPS files, PageByPage is equivalent to All.
+ --(no)compress use compression (default: $bool[$::opt_compress])
+ --device=DEV use -sDEVICE=DEV (default: $::opt_device)
+ --(no)embed embed fonts (default: $bool[$::opt_embed])
+ --pdfsettings=VAL use -dPDFSETTINGS=/VAL (default is prepress if --embed,
+ else empty); recognized VAL choices:
+ screen, ebook, printer, prepress, default.
+ --(no)quiet use -q (-dQUIET) (default: $bool[$::opt_quiet])
+ --res=DPI|DPIxDPI set image resolution (default: $resmsg)
+ ignored if option --debug is set.
+ --(no)safer use -d(NO)SAFER (default: $bool[$::opt_safer])
+
+Examples producing test.pdf:
+ \$ $program test.eps
+ \$ cat test.eps | $program --filter >test.pdf
+ \$ cat test.eps | $program -f -o=test.pdf
-Options may start with either - or --, and may be unambiguously
-abbreviated. It is best to use the full option name in scripts, though,
-to avoid possible collisions with new options in the future.
+Example to look for HiResBoundingBox and produce corrected PostScript:
+ \$ $program -d --nogs --hires test.ps >testcorr.ps
+
+More about the options for Ghostscript:
+ Additional options to be used with gs can be specified
+ with either or both of the two cumulative options --gsopts and --gsopt.
+ --gsopts takes a single string of options, which is split at whitespace,
+ each resulting word then added to the gs command line individually.
+ --gsopt adds its argument as a single option to the gs command line.
+ It can be used multiple times to specify options separately,
+ and is necessary if an option or its value contains whitespace.
+ In restricted mode, options are limited to those with names and values
+ known to be safe; some options taking booleans, integers or fixed
+ names are allowed, those taking general strings are not.
+
+All options to epstopdf may start with either - or --, and may be
+unambiguously abbreviated. It is best to use the full option name in
+scripts, though, to avoid possible collisions with new options in the
+future.
When reporting bugs, please include an input file and command line
options so the problem can be reproduced.
@@ -243,30 +408,42 @@ END_OF_USAGE
### process options
use Getopt::Long;
GetOptions (
- "autorotate=s", # \ref{val_autorotate}
+ "autorotate=s", # \ref{val_autorotate}
"compress!",
"debug!",
+ "device=s",
"embed!",
"exact!",
"filter!",
"gs!",
- "gscmd=s", # \ref{val_gscmd}
+ "gscmd=s", # \ref{val_gscmd}
+ "gsopt=s@", # \ref{val_gsopt}
+ "gsopts=s" => \&gsopts, # \ref{val_gsopts}
"help",
"hires!",
- "outfile=s", # \ref{openout_any}
- "res=i", # validated by getopt ('i' specifier)
+ "outfile=s", # \ref{openout_any}
+ "pdfsettings=s",
+ "quiet",
+ "res=s",
"restricted",
+ "safer!",
"version",
) or die $usage;
+### disable --quiet if option --debug is given
+$::opt_quiet = 0 if $::opt_debug;
+
+### restricted option
+$restricted = 1 if $::opt_restricted;
+
### 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 "Error: @_ (try --help for more information)\n"; }
+sub warnerr { $restricted ? error(@_) : warning(@_); }
-### restricted option
-$restricted = 1 if $::opt_restricted;
+### debug messages
debug "Restricted mode activated" if $restricted;
### safer external commands for Windows in restricted mode
@@ -282,8 +459,7 @@ debug "kpsewhich command: $kpsewhich";
### check if a name is "safe" according to kpse's open(in|out)_any
# return true if name is ok, false otherwise
-sub safe_name
-{
+sub safe_name {
my ($mode, $name) = @_;
my $option = "";
$option = '-safe-in-name' if $mode eq 'in';
@@ -321,6 +497,9 @@ if ($::opt_filter) {
}
### emacs-page
+### start building GS command line for the pipe
+### take --safer and --gsopts into account
+
### option gscmd
if ($::opt_gscmd) {
if ($restricted) { # \label{val_gscmd}
@@ -333,7 +512,18 @@ if ($::opt_gscmd) {
### start building GS command line for the pipe
my @GS = ($GS);
-push @GS, qw(-q -dNOPAUSE -dSAFER -sDEVICE=pdfwrite);
+push @GS, '-q' if $::opt_quiet;
+push @GS, $::opt_safer ? '-dSAFER' : '-dNOSAFER';
+push @GS, '-dNOPAUSE';
+push @GS, '-dBATCH';
+
+if ($::opt_device and $restricted and
+ not $restricted_devlist{$::opt_device}) {
+ error "Option forbidden in restricted mode: --device=$::opt_device";
+ $::opt_device = '';
+}
+$::opt_device = $default_device unless $::opt_device;
+push @GS, "-sDEVICE=$::opt_device";
### option outfile
my $OutputFilename = $::opt_outfile;
@@ -358,18 +548,64 @@ debug "Output filename:", $OutputFilename;
push @GS, "-sOutputFile=$OutputFilename";
### options compress, embed, res, autorotate
-push @GS, ('-dPDFSETTINGS=/prepress', '-dMaxSubsetPct=100',
- '-dSubsetFonts=true', '-dEmbedAllFonts=true') if $::opt_embed;
+$::opt_pdfsettings = 'prepress' if $::opt_embed and not $::opt_pdfsettings;
+if ($::opt_pdfsettings
+ && $::opt_pdfsettings
+ !~ s/^\/?(screen|ebook|printer|prepress|default)$/$1/) {
+ warnerr "Invalid value for --pdfsettings: $::opt_pdfsettings";
+ $::opt_pdfsettings = '';
+}
+push @GS, "-dPDFSETTINGS=/$::opt_pdfsettings" if $::opt_pdfsettings;
+
+push @GS, qw[
+ -dMaxSubsetPct=100
+ -dSubsetFonts=true
+ -dEmbedAllFonts=true
+] if $::opt_embed;
+
+
push @GS, '-dUseFlateCompression=false' unless $::opt_compress;
+
+if ($::opt_res and
+ not $::opt_res =~ /^(\d+(x\d+)?)$/) {
+ warnerr "Invalid resolution: $opt_res";
+ $::opt_res = '';
+}
push @GS, "-r$::opt_res" if $::opt_res;
$resmsg= $::opt_res ? $::opt_res : "[use gs default]";
+
+# \label{val_autorotate}
+if ($::opt_autorotate and
+ not $::opt_autorotate =~ /^(None|All|PageByPage)$/) {
+ warnerr "Invalid value for --autorotate: $::opt_autorotate' "
+ . "(use 'All', 'None' or 'PageByPage'";
+ $::opt_autorotate = '';
+}
push @GS, "-dAutoRotatePages=/$::opt_autorotate" if $::opt_autorotate;
$rotmsg = $::opt_autorotate ? $::opt_autorotate : "[use gs default]";
-# \label{val_autorotate}
-error "Invalid value for autorotate: '$::opt_autorotate' "
- . "(use 'All', 'None' or 'PageByPage')."
- if ($::opt_autorotate and
- not $::opt_autorotate =~ /^(None|All|PageByPage)$/);
+
+foreach my $gsopt (@::opt_gsopt) {
+ if ($restricted) {
+ my $ok = 0;
+ if ($gsopt =~ /^-[dD]([A-Za-z0-9]+)(=(.*))?$/) {
+ my $name = $1;
+ my $value = $2;
+ $value = 'true' if not defined $value;
+ if ($optcheck{$name} and $value =~ /^$optcheck{$name}$/) {
+ $ok = 1;
+ }
+ else {
+ warnerr "Option forbidden in restricted mode: --gsopt $gsopt";
+ $gsopt = '';
+ }
+ }
+ if (not $ok) {
+ warnerr "Option forbidden in restricted mode: --gsopt $gsopt";
+ $gsopt = '';
+ }
+ }
+ push @GS, $gsopt if $gsopt;
+}
### option BoundingBox types
my $BBName = "%%BoundingBox:";
@@ -416,8 +652,9 @@ use File::Temp 'tempfile';
if ($::opt_gs) {
if (! $on_windows_or_cygwin) { # list piped open works
push @GS, qw(- -c quit);
- debug "Ghostscript pipe:", join(' ', @GS);
- open($OUT, '|-', @GS) or error "Cannot open Ghostscript for piped input";
+ debug "Ghostscript pipe: @GS";
+ open($OUT, '|-', @GS)
+ or error "Cannot open Ghostscript for piped input: @GS";
} else { # use a temporary file on Windows/Cygwin.
($OUT, $tmp_filename) = tempfile(UNLINK => 1);
debug "Using temporary file '$tmp_filename'";
@@ -447,10 +684,15 @@ my $buf;
my $buflen;
my @bufarray;
my $inputpos;
+my $maxpos = -1;
# We assume 2048 is big enough.
my $EOLSCANBUFSIZE = 2048;
+# PJL
+my $UEL = "\x1B%-12345X";
+my $PJL = '@PJL[^\r\n]*\r?\n';
+
$buflen = read(IN, $buf, $EOLSCANBUFSIZE);
if ($buflen > 0) {
my $crlfpos;
@@ -459,15 +701,83 @@ if ($buflen > 0) {
$inputpos = 0;
- # remove binary junk before header
- # if there is no header, we assume the file starts with ascii style and
- # we look for a eol style anyway, to prevent possible loading of the
- # entire file
- if ($buf =~ /%!/) {
- # throw away binary junk before %!
- $buf =~ s/(.*?)%!/%!/o;
- $inputpos = length($1);
+ # TN 5002 "Encapsulated PostScript File Format Specification"
+ # specifies a DOS EPS binary file format for including a
+ # device-specific screen preview.
+ #
+ # DOS EPS Binary File Header (30 Bytes):
+ # * Bytes 0-3: 0xC5D0D3C6
+ # * Bytes 4-7: Offset of PostScript section
+ # * Bytes 8-11: Length of PostScript section
+ # * ...
+ # * Bytes 28-29: XOR checksum of bytes 0-27 or 0xFFFF
+ if ($buflen > 30 and $buf =~ /^\xC5\xD0\xD3\xC6/) {
+ debug "DOS EPS binary file header found";
+ my $header = substr($buf, 0, 30);
+ my ($offset_ps, $length_ps, $checksum) = unpack("x[V]VVx[V4]n", $header);
+ debug " PS offset: $offset_ps";
+ debug " PS length: $length_ps";
+ $maxpos = $offset_ps + $length_ps;
+ # validate checksum
+ if ($checksum == 0xFFFF) {
+ debug " No checksum";
+ }
+ else {
+ debug " checksum: $checksum";
+ my $cs = 0;
+ map { $cs ^= $_ } unpack('n14', $header);
+ if ($cs != $checksum) {
+ warning "Wrong checksum of DOS EPS binary header";
+ }
+ }
+ # go to the start of the PostScript section and refill buffer
+ if ($::opt_filter) {
+ if ($offset_ps <= $buflen) {
+ $buf = substr($buf, $offset_ps);
+ $buflen = $buflen - $offset_ps;
+ $inputpos = $offset_ps;
+ my $len = read(IN, $buf, $offset_ps, $buflen);
+ $buflen += $len;
+ }
+ else {
+ $inputpos = $buflen;
+ $buflen = 0;
+ my $skip = $offset_ps - $inputpos;
+ while ($skip > 0) {
+ $buflen = read(IN, $buf,
+ $skip > $EOLSCANBUFSIZE ? $EOLSCANBUFSIZE : $skip);
+ $buflen > 0 or error "Unexpected end of input stream";
+ $inputpos += $buflen;
+ $skip = $offset_ps - $inputpos;
+ }
+ $buflen = read(IN, $buf, $EOLSCANBUFSIZE);
+ $buflen > 0 or error "Unexpected end of input stream";
+ }
+ }
+ else {
+ seek(IN, $offset_ps, 0) || error "Cannot seek to PostScript section";
+ $inputpos = $offset_ps;
+ $buflen = read(IN, $buf, $EOLSCANBUFSIZE);
+ $buflen > 0 or error "Reading PostScript section failed";
+ }
+ }
+ elsif ($buf =~ s/^($UEL($PJL)+)//) {
+ $inputpos = length($1);
+ debug "PJL commands removed at start of file: $inputpos bytes";
+ }
+ else {
+ # remove binary junk before header
+ # if there is no header, we assume the file starts with ascii style and
+ # we look for a eol style anyway, to prevent possible loading of the
+ # entire file
+ if ($buf =~ /%!/) {
+ # throw away binary junk before %!
+ $buf =~ s/(.*?)%!/%!/o;
+ $inputpos = length($1);
+ debug "Binary junk at start of file: $inputpos byte(s)";
+ }
}
+
$lfpos = index($buf, "\n");
$crpos = index($buf, "\r");
$crlfpos = index($buf, "\r\n");
@@ -485,6 +795,13 @@ if ($buflen > 0) {
$buf .= <IN> unless eof(IN);
$buflen = length($buf);
+ # In case of DOS EPS binary files respect end of PostScript section.
+ if ($maxpos> 0 and $inputpos + $buflen > $maxpos) {
+ $buflen = $maxpos - $inputpos;
+ $buflen > 0 or error "Internal error";
+ $buf = substr($buf, 0, $buflen);
+ }
+
# Some extra magic is needed here: if we set $/ to \r, Perl's re engine
# still thinks eol is \n in regular expressions (not very nice) so we
# cannot split on ^, but have to split on a look-behind for \r.
@@ -502,8 +819,17 @@ sub getline
if ($#bufarray >= 0) {
$_ = shift(@bufarray);
}
+ elsif ($maxpos > 0 and $inputpos >= $maxpos) {
+ $_ = undef;
+ }
else {
$_ = <IN>;
+ if ($maxpos > 0) {
+ my $skip = $maxpos - $inputpos - length($_);
+ if ($skip < 0) {
+ $_ = substr($_, 0, $skip);
+ }
+ }
}
$inputpos += length($_) if defined $_;
return defined($_);
@@ -586,6 +912,8 @@ if ($header) {
# go back
seek(IN, $pos, 0) or error "Cannot go back to line \"$BBName (atend)\"";
+ $inputpos = $pos;
+ @bufarray = ();
last;
}
@@ -609,7 +937,7 @@ close($OUT);
if (defined $tmp_filename) {
push @GS, $tmp_filename;
push @GS, qw(-c quit);
- debug "Ghostscript command:", join(' ', @GS);
+ debug "Ghostscript command: @GS";
system @GS;
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-23 08:33:03 +0000