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+#!/usr/bin/env perl
+use v5.26;
+use File::Basename;
+use Getopt::Long qw(:config bundling_values require_order no_ignore_case);
+use File::Temp qw(tempdir);
+use File::Copy;
+use Config;
+use File::Spec::Functions qw(catfile devnull);
+use File::Find;
+use IO::Compress::Zip qw(:all);
+use Archive::Tar;
+use POSIX qw(strftime);
+use Cwd;
+use autodie;
+#use Data::Dumper;
+
+### Directory for work and temp files
+my $tempDir = tempdir( CLEANUP => 1);
+my $workdir = cwd;
+my $null = devnull();
+
+### Program identification
+my $program = "LTXimg";
+my $nv = 'v1.7';
+my $copyright = <<END_COPYRIGHT ;
+[2019-08-24] (c) 2013-2019 by Pablo Gonzalez, pablgonz<at>yahoo.com
+END_COPYRIGHT
+
+### Default values
+my $prefix = 'fig'; # defaul prefix for extract files
+my $skiptag = 'noltximg'; # internal tag for regex
+my $extrtag = 'ltximg'; # internal tag for regex
+my $imageDir = "images"; # dir for images
+my $verbcmd = "myverb"; # set \myverb command
+my $margins = "0"; # margins for pdfcrop
+my $DPI = "150"; # dpi for image formats
+my $zip = 0; # zip images dir
+my $tar = 0; # tar.gz images dir
+my $arara = 0; # use arara to compiler
+my $force = 0; # force capture \psset|\tikzset
+my $latex = 0; # compiling all images using latex
+my $dvips = 0; # compiling output using dvips>ps2pdf
+my $dvipdf = 0; # compiling all images using dvipdfmx
+my $xetex = 0; # compiling all images using xelatex
+my $luatex = 0; # compiling all images using lualatex
+my $noprew = 0; # don't use preview packpage
+my $srcenv = 0; # create src code for environments
+my $subenv = 0; # create sub document for environments
+my @extr_env_tmp; # save extract environments
+my @skip_env_tmp; # save skip some environments
+my @verb_env_tmp; # save verbatim environments
+my @verw_env_tmp; # save verbatim write environments
+my @delt_env_tmp; # save delete environments in output file
+my @clean; # clean options
+my $pdf = 1; # create a PDF image file
+my $run = 1; # run mode compiler
+my $crop = 1; # croped pdf image files
+my $gray = 0; # create a gray scale images
+my $output; # set output name for outfile
+my $outfile = 0; # write output file
+my $outsrc = 0; # enable write src env files
+my $debug = 0; # debug
+my $PSTexa = 0; # extract PSTexample environment
+my $STDenv = 0; # extract standart environments
+my $verbose = 0; # verbose
+
+### Search Ghostscript
+# The next code it's part of pdfcrop adapted from TexLive 2014
+# Windows detection
+my $Win = 0;
+$Win = 1 if $^O =~ /mswin32/i;
+$Win = 1 if $^O =~ /cygwin/i;
+
+my $archname = $Config{'archname'};
+$archname = 'unknown' unless defined $Config{'archname'};
+
+# get Ghostscript command name
+my $gscmd = '';
+sub find_ghostscript () {
+ return if $gscmd;
+ if ($debug) {
+ print "* Perl executable: $^X\n";
+ if ($] < 5.006) {
+ print "* Perl version: $]\n";
+ }
+ else {
+ printf "* Perl version: v%vd\n", $^V;
+ }
+ if (defined &ActivePerl::BUILD) {
+ printf "* Perl product: ActivePerl, build %s\n", ActivePerl::BUILD();
+ }
+ printf "* Pointer size: $Config{'ptrsize'}\n";
+ printf "* Pipe support: %s\n",
+ (defined($Config{'d_pipe'}) ? 'yes' : 'no');
+ printf "* Fork support: %s\n",
+ (defined($Config{'d_fork'}) ? 'yes' : 'no');
+ }
+ my $system = 'unix';
+ $system = "dos" if $^O =~ /dos/i;
+ $system = "os2" if $^O =~ /os2/i;
+ $system = "win" if $^O =~ /mswin32/i;
+ $system = "cygwin" if $^O =~ /cygwin/i;
+ $system = "miktex" if defined($ENV{"TEXSYSTEM"}) and
+ $ENV{"TEXSYSTEM"} =~ /miktex/i;
+ print "* OS name: $^O\n" if $debug;
+ print "* Arch name: $archname\n" if $debug;
+ print "* System: $system\n" if $debug;
+ my %candidates = (
+ 'unix' => [qw|gs gsc|],
+ 'dos' => [qw|gs386 gs|],
+ 'os2' => [qw|gsos2 gs|],
+ 'win' => [qw|gswin32c gs|],
+ 'cygwin' => [qw|gs gswin32c|],
+ 'miktex' => [qw|mgs gswin32c gs|]
+ );
+ if ($system eq 'win' or $system eq 'cygwin' or $system eq 'miktex') {
+ if ($archname =~ /mswin32-x64/i) {
+ my @a = ();
+ foreach my $name (@{$candidates{$system}}) {
+ push @a, 'gswin64c' if $name eq 'gswin32c';
+ push @a, $name;
+ }
+ $candidates{$system} = \@a;
+ }
+ }
+ my %exe = (
+ 'unix' => '',
+ 'dos' => '.exe',
+ 'os2' => '.exe',
+ 'win' => '.exe',
+ 'cygwin' => '.exe',
+ 'miktex' => '.exe'
+ );
+ my $candidates_ref = $candidates{$system};
+ my $exe = $Config{'_exe'};
+ $exe = $exe{$system} unless defined $exe;
+ my @path = File::Spec->path();
+ my $found = 0;
+ foreach my $candidate (@$candidates_ref) {
+ foreach my $dir (@path) {
+ my $file = File::Spec->catfile($dir, "$candidate$exe");
+ if (-x $file) {
+ $gscmd = $candidate;
+ $found = 1;
+ print "* Found ($candidate): $file\n" if $debug;
+ last;
+ }
+ print "* Not found ($candidate): $file\n" if $debug;
+ }
+ last if $found;
+ }
+ if (not $found and $Win) {
+ $found = SearchRegistry();
+ }
+ if ($found) {
+ print "* Autodetected ghostscript command: $gscmd\n" if $debug;
+ }
+ else {
+ $gscmd = $$candidates_ref[0];
+ print "* Default ghostscript command: $gscmd\n" if $debug;
+ }
+}
+
+sub SearchRegistry () {
+ my $found = 0;
+ eval 'use Win32::TieRegistry qw|KEY_READ REG_SZ|;';
+ if ($@) {
+ if ($debug) {
+ print "* Registry lookup for Ghostscript failed:\n";
+ my $msg = $@;
+ $msg =~ s/\s+$//;
+ foreach (split /\r?\n/, $msg) {
+ print " $_\n";
+ }
+ }
+ return $found;
+ }
+ my $open_params = {Access => KEY_READ(), Delimiter => '/'};
+ my $key_name_software = 'HKEY_LOCAL_MACHINE/SOFTWARE/';
+ my $current_key = $key_name_software;
+ my $software = new Win32::TieRegistry $current_key, $open_params;
+ if (not $software) {
+ print "* Cannot find or access registry key `$current_key'!\n"
+ if $debug;
+ return $found;
+ }
+ print "* Search registry at `$current_key'.\n" if $debug;
+ my %list;
+ foreach my $key_name_gs (grep /Ghostscript/i, $software->SubKeyNames()) {
+ $current_key = "$key_name_software$key_name_gs/";
+ print "* Registry entry found: $current_key\n" if $debug;
+ my $key_gs = $software->Open($key_name_gs, $open_params);
+ if (not $key_gs) {
+ print "* Cannot open registry key `$current_key'!\n" if $debug;
+ next;
+ }
+ foreach my $key_name_version ($key_gs->SubKeyNames()) {
+ $current_key = "$key_name_software$key_name_gs/$key_name_version/";
+ print "* Registry entry found: $current_key\n" if $debug;
+ if (not $key_name_version =~ /^(\d+)\.(\d+)$/) {
+ print " The sub key is not a version number!\n" if $debug;
+ next;
+ }
+ my $version_main = $1;
+ my $version_sub = $2;
+ $current_key = "$key_name_software$key_name_gs/$key_name_version/";
+ my $key_version = $key_gs->Open($key_name_version, $open_params);
+ if (not $key_version) {
+ print "* Cannot open registry key `$current_key'!\n" if $debug;
+ next;
+ }
+ $key_version->FixSzNulls(1);
+ my ($value, $type) = $key_version->GetValue('GS_DLL');
+ if ($value and $type == REG_SZ()) {
+ print " GS_DLL = $value\n" if $debug;
+ $value =~ s|([\\/])([^\\/]+\.dll)$|$1gswin32c.exe|i;
+ my $value64 = $value;
+ $value64 =~ s/gswin32c\.exe$/gswin64c.exe/;
+ if ($archname =~ /mswin32-x64/i and -f $value64) {
+ $value = $value64;
+ }
+ if (-f $value) {
+ print "EXE found: $value\n" if $debug;
+ }
+ else {
+ print "EXE not found!\n" if $debug;
+ next;
+ }
+ my $sortkey = sprintf '%02d.%03d %s',
+ $version_main, $version_sub, $key_name_gs;
+ $list{$sortkey} = $value;
+ }
+ else {
+ print "Missing key `GS_DLL' with type `REG_SZ'!\n" if $debug;
+ }
+ }
+ }
+ foreach my $entry (reverse sort keys %list) {
+ $gscmd = $list{$entry};
+ print "* Found (via registry): $gscmd\n" if $debug;
+ $found = 1;
+ last;
+ }
+ return $found;
+} # end GS search
+
+### If windows
+if ($Win and $gscmd =~ /\s/) { $gscmd = "\"$gscmd\"";}
+
+### Call GS
+find_ghostscript();
+
+### Program identification, options and help for command line
+
+my $licensetxt = <<END_LICENSE ;
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+END_LICENSE
+
+my $title = "$program $nv $copyright";
+my $usage = <<"END_OF_USAGE";
+${title}** Description **
+ LTXimg is a "perl" script that automates the process of extracting and
+ converting "environments" provided by tikz, pstricks and other packages
+ from LaTeX file to image formats in "individual files" using ghostscript
+ and poppler-utils. Generates a one file with only extracted environments
+ and other with all extracted environments converted to \\includegraphics.
+
+** Syntax **
+ \$ ltximg [<compiler>] [<options>] [--] <filename>.<tex|ltx>
+
+** Usage **
+ \$ ltximg --latex [<options>] <file.tex>
+ \$ ltximg --arara [<options>] <file.tex>
+ \$ ltximg [<options>] <file.tex>
+ \$ ltximg <file.tex>
+
+ If used without [<compiler>] and [<options>] the extracted environments
+ are converted to pdf image format and saved in the "/images" directory
+ using "pdflatex" and "preview" package. Relative or absolute paths for
+ directories and files is not supported. If the last option take a list
+ separated by commas, you need -- at the end.
+
+** Default environments extract **
+ pspicture tikzpicture pgfpicture psgraph postscript PSTexample
+
+** Options **
+ [default]
+-h, --help Display command line help and exit [off]
+-l, --license Display GPL license and exit [off]
+-v, --version Display current version ($nv) and exit [off]
+-t, --tif Create .tif files using ghostscript [$gscmd]
+-b, --bmp Create .bmp files using ghostscript [$gscmd]
+-j, --jpg Create .jpg files using ghostscript [$gscmd]
+-p, --png Create .png files using ghostscript [$gscmd]
+-e, --eps Create .eps files using poppler-utils [pdftops]
+-s, --svg Create .svg files using poppler-utils [pdftocairo]
+-P, --ppm Create .ppm files using poppler-utils [pdftoppm]
+-g, --gray Gray scale for images using ghostscript [off]
+-f, --force Capture "\\psset" and "\\tikzset" to extract [off]
+-n, --noprew Create images files whitout "preview" package [off]
+-d <integer>, --dpi <integer>
+ Dots per inch resolution for images [150]
+-m <integer>, --margin <integer>
+ Set margins for pdfcrop [0]
+--imgdir <dirname> Set name of directory to save images [images]
+--zip Compress files generated in .zip format [off]
+--tar Compress files generated in .tar.gz format [off]
+-o <filename>, --output <filename>
+ Create output file [off]
+--verbose Verbose printing [off]
+--srcenv Create files whit only code environment [off]
+--subenv Create files whit preamble and code [off]
+--latex Using latex>dvips>ps2pdf for compiler input
+ and pdflatex for compiler output [off]
+--dvips Using latex>dvips>ps2pdf for compiler input
+ and latex>dvips>ps2pdf for compiler output [off]
+--arara Use arara for compiler input and output [off]
+--xetex Using xelatex for compiler input and output [off]
+--dvipdf Using dvipdfmx for compiler input and output [off]
+--luatex Using lualatex for compiler input and output [off]
+--prefix <string> Set prefix append to each image file [off]
+--norun Run script, but no create images files [off]
+--nopdf Don't create a ".pdf" image files [off]
+--nocrop Don't run pdfcrop [off]
+--verbcmd <cmdname> Set "\\cmdname" verbatim command [myverb]
+--clean (doc|pst|tkz|all|off)
+ Removes specific text in output file [doc]
+--extrenv <env1,...> Add new environments to extract [empty]
+--skipenv <env1,...> Skip environments to extract [empty]
+--verbenv <env1,...> Add verbatim environments [empty]
+--writenv <env1,...> Add verbatim write environments [empty]
+--deltenv <env1,...> Delete environments in output file [empty]
+
+** Example **
+ \$ ltximg --latex -e -p --srcenv --imgdir=mypics -o test-out test-in.ltx
+ \$ ltximg --latex -ep --srcenv --imgdir mypics -o test-out test-in.ltx
+
+ Create a "/mypics" directory whit all extracted environments converted to
+ image formats (.pdf, .eps, .png), individual files whit source code (.tex)
+ for all extracted environments, a file "test-out.ltx" whit all extracted
+ environments converted to \\includegraphics and file "test-in-fig-all.tex"
+ with only the extracted environments using latex>dvips>ps2pdf and preview
+ package for <input file> and pdflatex for <output file>.
+
+** Documentation **
+ For extended documentation use:
+ \$ texdoc ltximg
+END_OF_USAGE
+
+### Error in command line
+sub errorUsage { die "@_ (try ltximg --help for more information)\n"; }
+
+### Getopt::Long configuration for command line
+my %opts_cmd;
+
+my $result=GetOptions (
+# short and long options
+ 'h|help' => \$opts_cmd{help}, # help
+ 'v|version' => \$opts_cmd{version}, # version
+ 'l|license' => \$opts_cmd{license}, # license
+ 'd|dpi=i' => \$DPI, # numeric
+ 'm|margin=i' => \$margins, # numeric
+ 'b|bmp' => \$opts_cmd{bmp}, # gs
+ 't|tif' => \$opts_cmd{tif}, # gs
+ 'j|jpg' => \$opts_cmd{jpg}, # gs
+ 'p|png' => \$opts_cmd{png}, # gs
+ 's|svg' => \$opts_cmd{svg}, # pdftocairo
+ 'e|eps' => \$opts_cmd{eps}, # pdftops
+ 'P|ppm' => \$opts_cmd{ppm}, # pdftoppm
+ 'g|gray' => \$gray, # gray (bolean)
+ 'f|force' => \$force, # force (bolean)
+ 'n|noprew' => \$noprew, # no preview (bolean)
+ 'o|output=s{1}' => \$output, # output file name (string)
+# bolean options
+ 'subenv' => \$subenv, # subfile environments (bolean)
+ 'srcenv' => \$srcenv, # source files (bolean)
+ 'arara' => \$arara, # arara compiler
+ 'xetex' => \$xetex, # xelatex compiler
+ 'latex' => \$latex, # latex compiler
+ 'luatex' => \$luatex, # lualatex compiler
+ 'dvips' => \$dvips, # dvips compiler
+ 'dvipdf' => \$dvipdf, # dvipdfmx compiler
+ 'zip' => \$zip, # zip images dir
+ 'tar' => \$tar, # tar images dir
+# string options from command line
+ 'extrenv=s{1,9}' => \@extr_env_tmp, # extract environments
+ 'skipenv=s{1,9}' => \@skip_env_tmp, # skip environment
+ 'verbenv=s{1,9}' => \@verb_env_tmp, # verbatim environment
+ 'writenv=s{1,9}' => \@verw_env_tmp, # verbatim write environment
+ 'deltenv=s{1,9}' => \@delt_env_tmp, # delete environment
+# string options
+ 'imgdir=s{1}' => \$imageDir, # images dir name
+ 'verbcmd=s{1}' => \$verbcmd, # \myverb inline (string)
+ 'prefix=s{1}' => \$prefix, # prefix
+# negated options
+ 'crop!' => \$crop, # run pdfcrop
+ 'pdf!' => \$pdf, # pdf image format
+ 'clean=s{1}' => \@clean, # clean output file
+ 'run!' => \$run, # run compiler
+ 'debug!' => \$debug, # debug mode
+ 'verbose!' => \$verbose, # debug mode,
+ ) or die $usage;
+
+### Remove white space and '=' in array captured from command line
+s/^\s*(\=):?|\s*//mg foreach @extr_env_tmp;
+s/^\s*(\=):?|\s*//mg foreach @skip_env_tmp;
+s/^\s*(\=):?|\s*//mg foreach @verb_env_tmp;
+s/^\s*(\=):?|\s*//mg foreach @verw_env_tmp;
+s/^\s*(\=):?|\s*//mg foreach @delt_env_tmp;
+
+### Split comma separte list options from command line
+@extr_env_tmp = split(/,/,join('',@extr_env_tmp));
+@skip_env_tmp = split(/,/,join('',@skip_env_tmp));
+@verb_env_tmp = split(/,/,join('',@verb_env_tmp));
+@verw_env_tmp = split(/,/,join('',@verw_env_tmp));
+@delt_env_tmp = split(/,/,join('',@delt_env_tmp));
+
+### Validate input string options
+if (grep( /(^\-|^\.).*?/, @extr_env_tmp )) {
+ die errorUsage "Invalid argument for --extrenv option";
+}
+if (grep( /(^\-|^\.).*?/, @skip_env_tmp )) {
+ die errorUsage "Invalid argument for --skipenv option";
+}
+if (grep( /(^\-|^\.).*?/, @verb_env_tmp )) {
+ die errorUsage "Invalid argument for --verbenv option";
+}
+if (grep( /(^\-|^\.).*?/, @verw_env_tmp )) {
+ die errorUsage "Invalid argument for --writenv option";
+}
+if (grep( /(^\-|^\.).*?/, @delt_env_tmp )) {
+ die errorUsage "Invalid argument for --deltenv option";
+}
+
+### Help
+if (defined $opts_cmd{help}) {
+ find_ghostscript();
+ print $usage;
+ exit(0);
+}
+
+### Version
+if (defined $opts_cmd{version}) {
+ print $title;
+ exit(0);
+}
+
+### Licence
+if (defined $opts_cmd{license}) {
+ print $licensetxt;
+ exit(0);
+}
+
+### Set tmp random name for name-fig-tmp (temp files)
+my $tmp = "$$";
+
+### Check --srcenv and --subenv option from command line
+if ($srcenv && $subenv) {
+ die errorUsage "--srcenv and --subenv options are mutually exclusive";
+}
+
+### Check the input file from command line
+@ARGV > 0 or errorUsage "Input filename missing";
+@ARGV < 2 or errorUsage "Unknown option or too many input files";
+
+### Check input file extention
+my @SuffixList = ('.tex', '', '.ltx'); # posibles
+my ($name, $path, $ext) = fileparse($ARGV[0], @SuffixList);
+$ext = '.tex' if not $ext;
+
+### Read input file in memory (slurp), need :crlf for windows/linux
+open my $INPUTfile, '<:crlf', "$name$ext";
+my $ltxfile;
+ {
+ local $/;
+ $ltxfile = <$INPUTfile>;
+ }
+close $INPUTfile;
+
+### Funtion uniq
+sub uniq {
+ my %seen;
+ grep !$seen{$_}++, @_;
+}
+
+### Funtion array_minus
+sub array_minus(\@\@) {
+ my %e = map{ $_ => undef } @{$_[1]};
+ return grep( ! exists( $e{$_} ), @{$_[0]} );
+}
+
+### Funtion to create hash begin -> BEGIN, end -> END
+sub crearhash {
+ my %cambios;
+ for my $aentra(@_){
+ for my $initend (qw(begin end)) {
+ $cambios{"\\$initend\{$aentra"} = "\\\U$initend\E\{$aentra";
+ }
+ }
+ return %cambios;
+}
+
+### Default environment to extract
+my @extr_tmp = qw (
+ postscript tikzpicture pgfpicture pspicture psgraph
+ );
+
+push (@extr_env_tmp, @extr_tmp);
+
+### Default verbatim environment
+my @verb_tmp = qw (
+ Example CenterExample SideBySideExample PCenterExample PSideBySideExample
+ verbatim Verbatim BVerbatim LVerbatim SaveVerbatim PSTcode
+ LTXexample tcblisting spverbatim minted listing lstlisting
+ alltt comment chklisting verbatimtab listingcont boxedverbatim
+ demo sourcecode xcomment pygmented pyglist program programl
+ programL programs programf programsc programt
+ );
+
+push (@verb_env_tmp, @verb_tmp);
+
+### Default verbatim write environment
+my @verbw_tmp = qw (
+ scontents filecontents tcboutputlisting tcbexternal tcbwritetmp extcolorbox extikzpicture
+ VerbatimOut verbatimwrite PSTexample filecontentsdef filecontentshere filecontentsdefmacro
+ );
+
+push (@verw_env_tmp, @verbw_tmp);
+
+### Rules to capture in regex
+my $braces = qr/ (?:\{)(.+?)(?:\}) /msx;
+my $braquet = qr/ (?:\[)(.+?)(?:\]) /msx;
+my $no_corchete = qr/ (?:\[ .*? \])? /msx;
+
+### Capture new verbatim environments defined in input file
+my @new_verb = qw (
+ newtcblisting DeclareTCBListing ProvideTCBListing NewTCBListing
+ lstnewenvironment NewListingEnvironment NewProgram specialcomment
+ includecomment DefineVerbatimEnvironment newverbatim newtabverbatim
+ );
+
+### Regex to capture names for new verbatim environments from input file
+my $newverbenv = join "|", map quotemeta, sort { length $a <=> length $b } @new_verb;
+ $newverbenv = qr/\b(?:$newverbenv) $no_corchete $braces/msx;
+
+### Capture new verbatim write environments defined in input file
+my @new_verb_write = qw (
+ renewtcbexternalizetcolorbox renewtcbexternalizeenvironment
+ newtcbexternalizeenvironment newtcbexternalizetcolorbox
+ );
+
+### Regex to capture names for new verbatim write environments from input file
+my $newverbwrt = join "|", map quotemeta, sort { length $a <=> length $b } @new_verb_write;
+ $newverbwrt = qr/\b(?:$newverbwrt) $no_corchete $braces/msx;
+
+### Regex to capture MINTED related environments
+my $mintdenv = qr/\\ newminted $braces (?:\{.+?\}) /x;
+my $mintcenv = qr/\\ newminted $braquet (?:\{.+?\}) /x;
+my $mintdshrt = qr/\\ newmint $braces (?:\{.+?\}) /x;
+my $mintcshrt = qr/\\ newmint $braquet (?:\{.+?\}) /x;
+my $mintdline = qr/\\ newmintinline $braces (?:\{.+?\}) /x;
+my $mintcline = qr/\\ newmintinline $braquet (?:\{.+?\}) /x;
+
+### Pass input file to @array and remove % and comments
+my @filecheck = $ltxfile;
+s/%.*\n//mg foreach @filecheck; # del comments
+s/^\s*|\s*//mg foreach @filecheck; # del white space
+my $filecheck = join '', @filecheck;
+
+### Capture \newverbatim write names in input file
+my @newv_write = $filecheck =~ m/$newverbwrt/xg;
+
+### Add @newv_write defined in input file to @verw_env_tmp
+push (@verw_env_tmp, @newv_write);
+
+### Capture \newminted{$mintdenv}{options} (for)
+my @mint_denv = $filecheck =~ m/$mintdenv/xg;
+
+### Capture \newminted[$mintcenv]{lang} (for)
+my @mint_cenv = $filecheck =~ m/$mintcenv/xg;
+
+### Capture \newmint{$mintdshrt}{options} (while)
+my @mint_dshrt = $filecheck =~ m/$mintdshrt/xg;
+
+### Capture \newmint[$mintcshrt]{lang}{options} (while)
+my @mint_cshrt = $filecheck =~ m/$mintcshrt/xg;
+
+### Capture \newmintinline{$mintdline}{options} (while)
+my @mint_dline = $filecheck =~ m/$mintdline/xg;
+
+### Capture \newmintinline[$mintcline]{lang}{options} (while)
+my @mint_cline = $filecheck =~ m/$mintcline/xg;
+
+### Capture \newverbatim environments in input file (for)
+my @verb_input = $filecheck =~ m/$newverbenv/xg;
+
+### Add new verbatim environment defined in input file to @vrbenv
+push (@verb_env_tmp,@mint_denv,@mint_cenv,@verb_input);
+
+### Append "code" (minted)
+if (!@mint_denv == 0) {
+ $mintdenv = join "\n", map { qq/$_\Qcode\E/ } @mint_denv;
+ @mint_denv = split /\n/, $mintdenv;
+}
+
+### Append "inline" (minted)
+if (!@mint_dline == 0) {
+ $mintdline = join "\n", map { qq/$_\Qinline\E/ } @mint_dline;
+ @mint_dline = split /\n/, $mintdline;
+}
+
+### Join all minted inline/short and lstinline in @array
+my @mintline;
+my @mint_tmp = qw ( mint mintinline lstinline);
+push (@mintline,@mint_dline,@mint_cline,@mint_dshrt,@mint_cshrt,@mint_tmp);
+ @mintline = uniq(@mintline);
+
+### Create a regex using @mintline
+my $mintline = join "|", map quotemeta, sort { length $a <=> length $b } @mintline;
+ $mintline = qr/\b(?:$mintline)/x;
+
+### Options from input file
+# % ltximg : extrenv : {extrenv1, extrenv2, ... , extrenvn}
+# % ltximg : skipenv : {skipenv1, skipenv2, ... , skipenvn}
+# % ltximg : verbenv : {verbwrt1, verbwrt2, ... , verbwrtn}
+# % ltximg : writenv : {verbwrt1, verbwrt2, ... , verbwrtn}
+# % ltximg : deltenv : {deltenv1, deltenv2, ... , deltenvn}
+# % ltximg : options : {opt1=arg, opt2=arg, ... , bolean}
+
+### Regex to capture before preamble $readoptfile, %opt_from_file;
+my $readoptfile = qr/
+ ^ %+ \s* ltximg (?&SEPARADOR) (?<clave>(?&CLAVE)) (?&SEPARADOR) \{ (?<argumentos>(?&ARGUMENTOS)) \}
+ (?(DEFINE)
+ (?<CLAVE> \w+ )
+ (?<ARGUMENTOS> .+? )
+ (?<SEPARADOR> \s* : \s* )
+ )
+/mx;
+
+### Split input file, $atbegindoc contain % ltximg : <argument>
+my ($atbegindoc, $document) = $ltxfile =~ m/\A (\s* .*? \s*) (\\documentclass.*)\z/msx;
+
+### Process options from input file
+my %opts_file;
+
+while ($atbegindoc =~ /$readoptfile/g) {
+ my ($clave, $argumentos) = @+{qw(clave argumentos)};
+ my @argumentos = split /\s*,\s*?/, $argumentos;
+ for (@argumentos) { s/^ \s* | \s* $//gx; }
+ if ($clave eq 'options') {
+ for my $argumento (@argumentos) {
+ if ($argumento =~ /(?<key>\S+) \s* = \s* (?<valor>\S+)/x) {
+ $opts_file{$clave}{$+{'key'}} = $+{'valor'};
+ } # close for
+ else {
+ $opts_file{$clave}{$argumento} = 1;
+ }
+ } # close for
+ } # close if
+ else {
+ push @{ $opts_file{ $clave } }, @argumentos;
+ }
+} # close while
+
+### Validate clean
+my %clean = map { $_ => 1 } @clean;
+
+### By default clean = doc
+$clean{doc} = 1 ;
+
+### Set clean options from input file
+$clean{doc} = 1 if ($opts_file{options}{clean} eq 'doc');
+$clean{off} = 1 if ($opts_file{options}{clean} eq 'off');
+$clean{pst} = 1 if ($opts_file{options}{clean} eq 'pst');
+$clean{tkz} = 1 if ($opts_file{options}{clean} eq 'tkz');
+$clean{all} = 1 if ($opts_file{options}{clean} eq 'all');
+
+### Set clean options for script
+if ($clean{pst} or $clean{tikz}) { $clean{doc} = 1; }
+if ($clean{all}) { @clean{qw(pst doc tkz)} = (1) x 3; }
+if ($clean{off}) { undef %clean; }
+
+### Add extract options from input file
+if (exists $opts_file{extract}) {
+ push @extr_env_tmp, @{ $opts_file{extract} };
+}
+
+### Add skipenv options from input file
+if (exists $opts_file{skipenv}) {
+ push @skip_env_tmp, @{ $opts_file{skipenv} };
+}
+
+### Add verbenv options from input file
+if (exists $opts_file{verbenv}) {
+ push @verb_env_tmp, @{ $opts_file{verbenv} };
+}
+
+### Add writenv options from input file
+if (exists $opts_file{writenv}) {
+ push @verw_env_tmp, @{ $opts_file{writenv} };
+}
+
+### Add deltenv options from input file
+if (exists $opts_file{deltenv}) {
+ push @delt_env_tmp, @{ $opts_file{deltenv} };
+}
+
+### Set \myverb|<code>| options from input file
+if (exists $opts_file{options}{verbcmd}) {
+ $verbcmd = $opts_file{options}{verbcmd};
+}
+
+### Create @env_all_tmp contain all environments
+my @env_all_tmp;
+push(@env_all_tmp,@extr_env_tmp,@skip_env_tmp,@verb_env_tmp,@verw_env_tmp,@delt_env_tmp);
+@env_all_tmp = uniq(@env_all_tmp);
+
+### Create @no_env_all_tmp contain all No extracted environments
+my @no_env_all_tmp;
+push(@no_env_all_tmp,@skip_env_tmp,@verb_env_tmp,@verw_env_tmp,@delt_env_tmp);
+@no_env_all_tmp = uniq(@no_env_all_tmp);
+
+### The operation return @extract environment
+my @extract = array_minus(@env_all_tmp,@no_env_all_tmp);
+ @extract = uniq(@extract);
+
+### The operation return @no_extract
+my @no_extract = array_minus(@env_all_tmp,@extract);
+my @no_skip;
+push(@no_skip,@verb_env_tmp,@verw_env_tmp,@delt_env_tmp);
+my @skipped = array_minus(@no_extract,@no_skip);
+ @skipped = uniq(@skipped);
+
+### The operation return @delte_env environment
+my @no_ext_skip = array_minus(@no_extract,@skipped);
+my @no_del;
+push(@no_del,@verb_env_tmp,@verw_env_tmp);
+my @delete_env = array_minus(@no_ext_skip,@no_del);
+ @delete_env = uniq(@delete_env);
+
+### The operation return @verbatim environment
+my @no_ext_skip_del = array_minus(@no_ext_skip,@delete_env);
+my @verbatim = array_minus(@no_ext_skip_del,@verw_env_tmp);
+
+### The operation return @verbatim write environment
+my @verbatim_w = array_minus(@no_ext_skip_del,@verbatim);
+
+### Create @env_all for hash and replace in while
+my @no_verb_env;
+push(@no_verb_env,@extract,@skipped,@delete_env,@verbatim_w);
+my @no_verw_env;
+push(@no_verw_env,@extract,@skipped,@delete_env,@verbatim);
+
+### Reserved words in verbatim inline (while)
+my %changes_in = (
+# ltximg tags
+ '%<*ltximg>' => '%<*LTXIMG>',
+ '%</ltximg>' => '%</LTXIMG>',
+ '%<*noltximg>' => '%<*NOLTXIMG>',
+ '%</noltximg>' => '%</NOLTXIMG>',
+ '%<*remove>' => '%<*REMOVE>',
+ '%</remove>' => '%</REMOVE>',
+ '%<*ltximgverw>' => '%<*LTXIMGVERW>',
+ '%</ltximgverw>' => '%</LTXIMGVERW>',
+# pst/tikz set
+ '\psset' => '\PSSET',
+ '\tikzset' => '\TIKZSET',
+# pspicture
+ '\pspicture' => '\TRICKS',
+ '\endpspicture' => '\ENDTRICKS',
+# pgfpicture
+ '\pgfpicture' => '\PGFTRICKS',
+ '\endpgfpicture' => '\ENDPGFTRICKS',
+# tikzpicture
+ '\tikzpicture' => '\TKZTRICKS',
+ '\endtikzpicture' => '\ENDTKZTRICKS',
+# psgraph
+ '\psgraph' => '\PSGRAPHTRICKS',
+ '\endpsgraph' => '\ENDPSGRAPHTRICKS',
+# some reserved
+ '\usepackage' => '\USEPACKAGE',
+ '{graphicx}' => '{GRAPHICX}',
+ '\graphicspath{' => '\GRAPHICSPATH{',
+ );
+
+### Changues \begin... \end in verbatim inline
+my %init_end = (
+# begin{ and end{
+ '\begin{' => '\BEGIN{',
+ '\end{' => '\END{',
+ );
+
+### Changues for \begin{document} ... \end{document}
+my %document = (
+# begin/end document for split
+ '\begin{document}' => '\BEGIN{document}',
+ '\end{document}' => '\END{document}',
+ );
+
+### Reverse for extract and output file
+my %changes_out = (
+# ltximg tags
+ '\begin{nopreview}' => '%<*noltximg>',
+ '\end{nopreview}' => '%</noltximg>',
+# pst/tikz set
+ '\PSSET' => '\psset',
+ '\TIKZSET' => '\tikzset',
+# pspicture
+ '\TRICKS' => '\pspicture',
+ '\ENDTRICKS' => '\endpspicture',
+# pgfpicture
+ '\PGFTRICKS' => '\pgfpicture',
+ '\ENDPGFTRICKS' => '\endpgfpicture',
+# tikzpicture
+ '\TKZTRICKS' => '\tikzpicture',
+ '\ENDTKZTRICKS' => '\endtikzpicture',
+# psgraph
+ '\PSGRAPHTRICKS' => '\psgraph',
+ '\ENDPSGRAPHTRICKS' => '\endpsgraph',
+# some reserved
+ '\USEPACKAGE' => '\usepackage',
+ '{GRAPHICX}' => '{graphicx}',
+ '\GRAPHICSPATH{' => '\graphicspath{',
+# begin{ and end{
+ '\BEGIN{' => '\begin{',
+ '\END{' => '\end{',
+ );
+
+### Reverse tags, need back in all file to extract
+my %reverse_tag = (
+# ltximg tags
+ '%<*LTXIMG>' => '%<*ltximg>',
+ '%</LTXIMG>' => '%</ltximg>',
+ '%<*NOLTXIMG>' => '%<*noltximg>',
+ '%</NOLTXIMG>' => '%</noltximg>',
+ '%<*REMOVE>' => '%<*remove>',
+ '%</REMOVE>' => '%</remove>',
+ '%<*LTXIMGVERW>' => '%<*ltximgverw>',
+ '%</LTXIMGVERW>' => '%</ltximgverw>',
+ );
+
+### Creatate a hash for changues
+my %extract_env = crearhash(@extract);
+my %skiped_env = crearhash(@skipped);
+my %verb_env = crearhash(@verbatim);
+my %verbw_env = crearhash(@verbatim_w);
+my %delete_env = crearhash(@delete_env);
+my %change_verbw_env = crearhash(@no_verw_env);
+my %change_verb_env = crearhash(@no_verb_env);
+
+### Join changues in new hash
+my %cambios = (%changes_in, %init_end);
+
+### Variables y constantes
+my $no_del = "\0";
+my $del = $no_del;
+
+### Rules
+my $llaves = qr/\{ .+? \} /x;
+my $no_llaves = qr/(?: $llaves )? /x;
+my $corchetes = qr/\[ .+? \] /x;
+my $nestedbr = qr/(\{(?>[^\{\}\\]++|\\.|(?R))*+\}) /x;
+my $delimitador = qr/\{ (?<del>.+?) \} /x;
+my $scontents = qr/Scontents [*]? $no_corchete /ix;
+my $verb = qr/(?:((spv|(?:q|f)?v|V)erb|$verbcmd)[*]?) /ix;
+my $lst = qr/(?:(lst|pyg)inline)(?!\*) $no_corchete /ix;
+my $mint = qr/(?: $mintline |SaveVerb) (?!\*) $no_corchete $no_llaves $llaves /ix;
+my $no_mint = qr/(?: $mintline) (?!\*) $no_corchete /ix;
+my $marca = qr/\\ (?:$verb | $lst |$scontents | $mint |$no_mint) (?:\s*)? (\S) .+? \g{-1} /sx;
+my $comentario = qr/^ \s* \%+ .+? $ /mx;
+my $definedel = qr/\\ (?: DefineShortVerb | lstMakeShortInline| MakeSpecialShortVerb ) [*]? $no_corchete $delimitador /ix;
+my $indefinedel = qr/\\ (?: (Undefine|Delete)ShortVerb | lstDeleteShortInline) $llaves /ix;
+
+### Changues in input file (in memory)
+while ($document =~
+ / $marca
+ | $comentario
+ | $definedel
+ | $indefinedel
+ | $del .+? $del
+ /pgmx) {
+ my ($pos_inicial, $pos_final) = ($-[0], $+[0]);
+ my $encontrado = ${^MATCH};
+ if ($encontrado =~ /$definedel/) {
+ $del = $+{del};
+ $del = "\Q$+{del}" if substr($del,0,1) ne '\\';
+ }
+ elsif ($encontrado =~ /$indefinedel/) {
+ $del = $no_del;
+ }
+ else {
+ while (my($busco, $cambio) = each %cambios) {
+ $encontrado =~ s/\Q$busco\E/$cambio/g;
+ } # close while
+ substr $document, $pos_inicial, $pos_final-$pos_inicial, $encontrado;
+ pos ($document) = $pos_inicial + length $encontrado;
+ }
+}
+
+### Regex for verbatim inline whit braces {...}
+my $fvextra = qr /\\ (?: (Save|Esc)Verb [*]?) $no_corchete /x;
+my $mintedbr = qr /\\ (?:$mintline|pygment) (?!\*) $no_corchete $no_llaves /x;
+my $tcbxverb = qr /\\ (?: tcboxverb [*]?| Scontents [*]? |$verbcmd [*]?|lstinline) $no_corchete /x;
+my $verb_brace = qr / (?:$tcbxverb|$mintedbr|$fvextra) (?:\s*)? $nestedbr /x;
+
+### Changue \verb*{code} for verbatim inline
+while ($document =~ /$verb_brace/pgmx) {
+ my ($pos_inicial, $pos_final) = ($-[0], $+[0]);
+ my $encontrado = ${^MATCH};
+ while (my($busco, $cambio) = each %cambios) {
+ $encontrado =~ s/\Q$busco\E/$cambio/g;
+ } # close while
+ substr $document, $pos_inicial, $pos_final-$pos_inicial, $encontrado;
+ pos ($document) = $pos_inicial + length $encontrado;
+} # close while
+
+### Changue <*TAGS> to <*tags>
+my $ltxtags = join "|", map {quotemeta} sort { length($a)<=>length($b) } keys %reverse_tag;
+ $document =~ s/^($ltxtags)/$reverse_tag{$1}/gmsx;
+
+### Define environments Verbatim standart
+my $verbatim = join "|", map quotemeta, sort { length $a <=> length $b } @verbatim;
+ $verbatim = qr/$verbatim/x;
+
+### Define environments Verbatim write
+my $verbatim_w = join "|", map quotemeta, sort { length $a <=> length $b } @verbatim_w;
+ $verbatim_w = qr/$verbatim_w/x;
+
+### Define environments to skip
+my $skipenv = join "|", map quotemeta, sort { length $a <=> length $b } @skipped;
+ $skipenv = qr/$skipenv/x;
+
+### Define environments to extract
+my $environ = join "|", map quotemeta, sort { length $a <=> length $b } @extract;
+ $environ = qr/$environ/x;
+
+### Define environments to delete
+my $delenv = join "|", map quotemeta, sort { length $a <=> length $b } @delt_env_tmp;
+ $delenv = qr/$delenv/x;
+
+### Split file by lines
+my @lineas = split /\n/, $document;
+
+### Hash and Regex for changues
+my %replace = (%change_verb_env,%changes_in,%document);
+my $find = join "|", map {quotemeta} sort { length($a)<=>length($b) } keys %replace;
+
+### Change in $verbatim and $verbatim_w
+my $DEL;
+for (@lineas) {
+ if (/\\begin\{($verbatim\*?)(?{ $DEL = "\Q$^N" })\}/ .. /\\end\{$DEL\}/) {
+ s/($find)/$replace{$1}/g; }
+ if (/\\begin\{($verbatim_w\*?)(?{ $DEL = "\Q$^N" })\}/ .. /\\end\{$DEL\}/) {
+ my %replace = (%change_verbw_env,%changes_in,%document);
+ my $find = join "|", map {quotemeta} sort { length($a)<=>length($b) } keys %replace;
+ s/($find)/$replace{$1}/g; }
+} # close for
+
+### Join lines in $document
+$document = join("\n", @lineas);
+
+### Split input file
+my ($preamble,$bodydoc,$enddoc) = $document =~ m/\A (.+?) (\\begin\{document\} .+?)(\\end\{document\}.*)\z/msx;
+
+### Regex for delete environment
+my $delt_env = qr /
+ (
+ (?:
+ \\begin\{$delenv\*?\}
+ (?:
+ (?>[^\\]+)|
+ \\
+ (?!begin\{$delenv\*?\})
+ (?!end\{$delenv\*?\})|
+ (?-1)
+ )*
+ \\end\{$delenv\*?\}
+ )
+ )
+ /x;
+
+### Regex for verbatim write environment
+my $verb_wrt = qr /
+ (
+ (?:
+ \\begin\{$verbatim_w\*?\}
+ (?:
+ (?>[^\\]+)|
+ \\
+ (?!begin\{$verbatim_w\*?\})
+ (?!end\{$verbatim_w\*?\})|
+ (?-1)
+ )*
+ \\end\{$verbatim_w\*?\}
+ )
+ )
+ /x;
+
+### Pass $verb_wrt to %<*ltximgverw> ... %</ltximgverw>
+$bodydoc =~ s/($verb_wrt)/\%<\*ltximgverw>\n$1\n\%<\/ltximgverw>/gmsx;
+
+### Regex for skip environment
+my $skip_env = qr /
+ (
+ (?:
+ \\begin\{$skipenv\*?\}
+ (?:
+ (?>[^\\]+)|
+ \\
+ (?!begin\{$skipenv\*?\})
+ (?!end\{$skipenv\*?\})|
+ (?-1)
+ )*
+ \\end\{$skipenv\*?\}
+ )
+ )
+ /x;
+
+### Pass %<*noltximg> ... %</noltximg> to \begin{nopreview} ... \end{nopreview}
+$bodydoc =~ s/^\%<\*$skiptag>(.+?)\%<\/$skiptag>/\\begin\{nopreview\}$1\\end\{nopreview\}/gmsx;
+
+### Pass $skip_env to \begin{nopreview} .+? \end{nopreview}
+$bodydoc =~ s/\%<\*ltximgverw> .+?\%<\/ltximgverw>(*SKIP)(*F)|
+ \\begin\{nopreview\}.+?\\end\{nopreview\}(*SKIP)(*F)|
+ ($skip_env)/\\begin\{nopreview\}\n$1\n\\end\{nopreview\}\n/gmsx;
+
+### Regex to extract environments
+my $extr_env = qr /
+ (
+ (?:
+ \\begin\{$environ\*?\}
+ (?:
+ (?>[^\\]+)|
+ \\
+ (?!begin\{$environ\*?\})
+ (?!end\{$environ\*?\})|
+ (?-1)
+ )*
+ \\end\{$environ\*?\}
+ )
+ )
+ /x;
+
+### Set bolean options from input file
+$zip = 1 if exists $opts_file{options}{zip};
+$tar = 1 if exists $opts_file{options}{tar};
+$force = 1 if exists $opts_file{options}{force};
+$run = 0 if exists $opts_file{options}{norun};
+$pdf = 0 if exists $opts_file{options}{nopdf};
+$crop = 0 if exists $opts_file{options}{nocrop};
+$noprew = 1 if exists $opts_file{options}{noprew};
+$force = 1 if exists $opts_file{options}{force};
+$arara = 1 if exists $opts_file{options}{arara};
+$xetex = 1 if exists $opts_file{options}{xetex};
+$latex = 1 if exists $opts_file{options}{latex};
+$dvips = 1 if exists $opts_file{options}{dvips};
+$dvipdf = 1 if exists $opts_file{options}{dvipdf};
+$luatex = 1 if exists $opts_file{options}{luatex};
+$srcenv = 1 if exists $opts_file{options}{srcenv};
+$subenv = 1 if exists $opts_file{options}{subenv};
+
+### Check plain TeX syntax
+my %special = map { $_ => 1 } @extract; # anon hash
+
+### Convert \pspicture to LaTeX syntax
+if (exists($special{pspicture})) {
+ $bodydoc =~ s/
+ \\pspicture(\*)?(.+?)\\endpspicture/\\begin{pspicture$1}$2\\end{pspicture$1}/gmsx;
+}
+
+### Convert \psgraph to LaTeX syntax
+if (exists($special{psgraph})) {
+ $bodydoc =~ s/
+ \\psgraph(\*)?(.+?)\\endpsgraph/\\begin{psgraph$1}$2\\end{psgraph$1}/gmsx;
+}
+
+### Convert \tikzpicture to LaTeX syntax
+if (exists($special{tikzpicture})) {
+ $bodydoc =~ s/
+ \\tikzpicture(.+?)\\endtikzpicture/\\begin{tikzpicture}$1\\end{tikzpicture}/gmsx;
+}
+
+### Convert \pgfpicture to LaTeX syntax
+if (exists($special{pgfpicture})) {
+ $bodydoc =~ s/
+ \\pgfpicture(.+?)\\endpgfpicture/\\begin{pgfpicture}$1\\end{pgfpicture}/gmsx;
+}
+
+### Pass %<*ltximg> (.+?) %</ltximg> to \begin{preview} (.+?) \end{preview}
+$bodydoc =~ s/^\%<\*$extrtag>(.+?)\%<\/$extrtag>/\\begin\{preview\}$1\\end\{preview\}/gmsx;
+
+### $force mode for pstricks/psgraph/tikzpiture
+if ($force) {
+if (exists($special{pspicture}) or exists($special{psgraph})) { # pspicture or psgraph found
+$bodydoc =~ s/\%<\*ltximgverw> .+?\%<\/ltximgverw>(*SKIP)(*F)|
+ \\begin\{nopreview\}.+?\\end\{nopreview\}(*SKIP)(*F)|
+ \\begin\{preview\}.+?\\end\{preview\}(*SKIP)(*F)|
+ \\begin\{postscript\}.+?\\end\{postscript\}(*SKIP)(*F)|
+ (?<code>
+ (?:\\psset\{(?:\{.*?\}|[^\{])*\}.+?)? # if exist ...save
+ \\begin\{(?<env> pspicture\*?| psgraph)\} .+? \\end\{\k<env>\}
+ )
+ /\\begin\{preview\}\n$+{code}\n\\end\{preview\}/gmsx;
+ } # close pspicture
+if (exists($special{tikzpicture})) {# tikzpicture found
+$bodydoc =~ s/\%<\*ltximgverw> .+?\%<\/ltximgverw>(*SKIP)(*F)|
+ \\begin\{nopreview\}.+?\\end\{nopreview\}(*SKIP)(*F)|
+ \\begin\{preview\}.+?\\end\{preview\}(*SKIP)(*F)|
+ \\begin\{postscript\}.+?\\end\{postscript\}(*SKIP)(*F)|
+ (?<code>
+ (?:\\tikzset\{(?:\{.*?\}|[^\{])*\}.+?)? # if exist ...save
+ \\begin\{(?<env> tikzpicture)\} .+? \\end\{\k<env>\}
+ )
+ /\\begin\{preview\}\n$+{code}\n\\end\{preview\}/gmsx;
+ } # close tikzpicture
+} # close $force mode
+
+### Pass $extr_env to \begin{preview} .+? \end{preview}
+$bodydoc =~ s/\%<\*ltximgverw> .+?\%<\/ltximgverw>(*SKIP)(*F)|
+ \\begin\{nopreview\}.+?\\end\{nopreview\}(*SKIP)(*F)|
+ \\begin\{preview\}.+?\\end\{preview\}(*SKIP)(*F)|
+ ($extr_env)/\\begin\{preview\}\n$1\n\\end\{preview\}/gmsx;
+
+### The extract environments need back words to original
+%replace = (%changes_out,%reverse_tag);
+ $find = join "|", map {quotemeta} sort { length($a)<=>length($b) } keys %replace;
+
+### Split $preamble by lines
+@lineas = split /\n/, $preamble;
+
+### Changues in verbatim write
+for (@lineas) {
+ if (/\\begin\{($verbatim_w\*?)(?{ $DEL = "\Q$^N" })\}/ .. /\\end\{$DEL\}/) {
+ s/($find)/$replace{$1}/g; }
+} # close for
+
+### Join lines in $preamble
+$preamble = join("\n", @lineas);
+
+### Change back betwen \begin{preview} ... \end{preview}
+@lineas = split /\n/, $bodydoc;
+
+for (@lineas) {
+ if (/\\begin\{(preview)(?{ $DEL = "\Q$^N" })\}/ .. /\\end\{$DEL\}/) { # range operator
+ s/($find)/$replace{$1}/g; }
+ if (/\\begin\{($verbatim_w\*?)(?{ $DEL = "\Q$^N" })\}/ .. /\\end\{$DEL\}/) {
+ s/($find)/$replace{$1}/g; }
+} # close for
+
+### Join lines in $bodydoc
+$bodydoc = join("\n", @lineas);
+
+### preview environment for extract
+my $BP = '\\\\begin\{preview\}';
+my $EP = '\\\\end\{preview\}';
+
+my @env_extract = $bodydoc =~ m/(?<=$BP)(.+?)(?=$EP)/gms;
+my $envNo = scalar @env_extract;
+
+### PSTexample environment for extract
+my $BE = '\\\\begin\{PSTexample\}';
+my $EE = '\\\\end\{PSTexample\}';
+
+my @exa_extract = $bodydoc =~ m/(?<=$BE)(.+?)(?=$EE)/gms;
+my $exaNo = scalar @exa_extract;
+
+### Check if PSTexample environment found, 1 = run script
+if ($exaNo!=0) { $PSTexa = 1; }
+
+### Check if standart environment found, , 1 = run script
+if ($envNo!=0) { $STDenv=1; }
+
+### PSTexample environment suport
+if ($PSTexa) { # append [graphic={[...]...}]
+$exaNo = 1;
+while ($bodydoc =~ /\\begin\{PSTexample\}(\[.+?\])?/gsm) {
+ my $swpl_grap = "graphic=\{\[scale=1\]$imageDir/$name-$prefix-exa";
+ my $corchetes = $1;
+ my ($pos_inicial, $pos_final) = ($-[1], $+[1]);
+ if (not $corchetes) { $pos_inicial = $pos_final = $+[0]; }
+ if (not $corchetes or $corchetes =~ /\[\s*\]/) {
+ $corchetes = "[$swpl_grap-$exaNo}]";
+ }
+ else { $corchetes =~ s/\]/,$swpl_grap-$exaNo}]/; }
+ substr($bodydoc, $pos_inicial, $pos_final - $pos_inicial) = $corchetes;
+ pos($bodydoc) = $pos_inicial + length $corchetes;
+} # close while
+continue { $exaNo++; } # increment counter
+
+### Pass PSTexample to nopreview environment
+$bodydoc =~ s/\%<\*ltximgverw>\n
+ (?<code>
+ \\begin\{PSTexample\} .+? \\end\{PSTexample\}
+ )
+ \n\%<\/ltximgverw>
+ /\\begin\{nopreview\}\n$+{code}\n\\end\{nopreview\}/gmsx;
+} # close PSTexa
+
+### Command line script identification
+print "$program $nv $copyright" ;
+
+### Check if enviroment found in input file
+if ($envNo == 0 and $exaNo == 0) {
+ die errorUsage "ltximg can not find any environment to extract in file $name$ext";
+ }
+elsif ($envNo!= 0 and $exaNo!= 0) {
+ say "The file $name$ext contain $envNo environment to extract and $exaNo PSTexample environment to extract";
+ }
+elsif ($envNo == 0 and $exaNo!= 0) {
+ say "The file $name$ext contain $exaNo PSTexample environment to extract";
+ }
+else { say "The file $name$ext contain $envNo environment to extract"; }
+
+### Set output file name from input file
+if (exists $opts_file{options}{output}){
+ $output = $opts_file{options}{output};
+}
+
+### Validate output file name
+if (defined $output) {
+# Not contain - at begin
+if ($output =~ /(^\-|^\.).*?/) {
+ die errorUsage "$output it is not a valid name for output file";
+}
+# The name of the output file must be different that $name
+if ($output eq "$name") { $output = "$name-out$ext"; }
+
+# The name of the output file must be different that $name.ext
+if ($output eq "$name$ext") { $output = "$name-out$ext"; }
+
+# Remove .ltx or .tex extension
+if ($output =~ /.*?$ext/) { $output =~ s/(.+?)$ext/$1/gms;}
+} # close check
+
+### If output name are ok, then $outfile = 1
+if (defined($output)) { $outfile = 1; }
+
+### If --srcenv or --subenv option are OK then execute script
+if ($srcenv) { $outsrc = 1; $subenv = 0; }
+if ($subenv) { $outsrc = 1; $srcenv = 0; }
+
+### Set imgdir name from input file
+if (exists $opts_file{options}{imgdir}) {
+ $imageDir = $opts_file{options}{imgdir};
+}
+
+### Set prefix name from input file
+if (exists $opts_file{options}{prefix}) {
+ $prefix = $opts_file{options}{prefix};
+}
+
+### Set pdfcrop margins from input file
+if (exists $opts_file{options}{margins}) {
+ $margins = $opts_file{options}{margins};
+}
+
+### Set DPI resolution for images from input file
+if (exists $opts_file{options}{dpi}) {
+ $DPI = $opts_file{options}{dpi};
+}
+
+### Create /images dir to save image and source code
+-e $imageDir or mkdir($imageDir,0744) or die "Can't create $imageDir: $!\n";
+
+### Options for \pagestyle{empty} ($crop)
+my $opt_page = $crop ? "\n\\pagestyle\{empty\}\n\\begin\{document\}"
+ : "\n\\begin\{document\}"
+ ;
+
+### Add options to preamble for subfiles
+my $sub_prea = "$atbegindoc$preamble$opt_page";
+
+### Delete <*remove> ... </remove> in $sub_prea
+$sub_prea =~ s/^\%<\*remove>\s*(.+?)\s*\%<\/remove>(?:[\t ]*(?:\r?\n|\r))?+//gmsx;
+
+### Options for preview packpage
+my $opt_prew = $xetex ? 'xetex,'
+ : $latex ? ''
+ : 'pdftex,'
+ ;
+
+### Lines to add at begin input file
+my $preview = <<"EXTRA";
+\\AtBeginDocument\{%
+\\RequirePackage\[${opt_prew}active,tightpage\]\{preview\}%
+\\renewcommand\\PreviewBbAdjust\{-60pt -60pt 60pt 60pt\}\}%
+EXTRA
+
+### Extract source $outsrc
+if ($outsrc) {
+my $src_name = "$name-$prefix-";
+my $srcNo = 1;
+
+### Source file whitout preamble for standart environment
+if ($srcenv) {
+if ($STDenv) { # extract standard environments in individual files
+ say "Creating $envNo files with source code for all environments";
+ while ($bodydoc =~ m/$BP\s*(?<env_src>.+?)\s*$EP/gms) {
+ open my $OUTsrc, '>', "$imageDir/$src_name$srcNo$ext";
+ print $OUTsrc $+{env_src};
+ close $OUTsrc;
+ } # close while
+ continue { $srcNo++; } # increment counter
+} # close STDenv
+if ($PSTexa) { # extract PSTexample environments in individual files
+ say "Creating $exaNo files with source code for all PSTexample environments";
+ while ($bodydoc =~ m/$BE\[.+?(?<pst_exa_name>$imageDir\/.+?-\d+)\}\]\s*(?<exa_src>.+?)\s*$EE/gms) {
+ open my $OUTexa, '>', "$+{'pst_exa_name'}$ext";
+ print $OUTexa $+{'exa_src'};
+ close $OUTexa;
+ }
+ } # close PSTexa
+} # close srcenv
+
+### Subfile whit preamble
+if ($subenv) {
+if ($STDenv) { # extract standard environments (with preamble) in individual files
+say "Creating a $envNo files whit source code and preamble for all environments";
+while ($bodydoc =~ m/(?<=$BP)(?<env_src>.+?)(?=$EP)/gms) { # search $bodydoc
+open my $OUTsub, '>', "$imageDir/$src_name$srcNo$ext";
+print $OUTsub <<"EOC";
+$sub_prea$+{'env_src'}\\end\{document\}
+EOC
+close $OUTsub;
+ } # close while
+continue { $srcNo++; }
+} # close STDenv
+if ($PSTexa) { # extract PSTexample environments (with preamble) in individual files
+say "Creating a $exaNo files whit source code and preamble for all PSTexample environments";
+while ($bodydoc =~ m/$BE\[.+?(?<pst_exa_name>$imageDir\/.+?-\d+)\}\]\s*(?<exa_src>.+?)\s*$EE/gms) {
+ open my $OUTsub, '>', "$+{'pst_exa_name'}$ext";
+ print $OUTsub "$sub_prea\n$+{'exa_src'}\n\\end\{document\}";
+ close $OUTsub;
+ } # close while
+ } # close $PSTexa
+ } # close subenv
+} # close $outsrc
+
+### Create a one file with "all" PSTexample environments extracted
+if ($PSTexa) {
+say "Creating the temporary file $name-$prefix-exa-$tmp$ext whit $exaNo PSTexample environments extracted";
+@exa_extract = undef;
+ while ( $bodydoc =~ m/$BE\[.+? $imageDir\/.+?-\d+\}\](?<exa_src>.+?)$EE/gmsx ) { # search $bodydoc
+ push @exa_extract, $+{exa_src}."\n\\newpage\n";
+ open my $OUTfig, '>', "$name-$prefix-exa-$tmp$ext";
+ print $OUTfig "$atbegindoc"."$preamble"."$opt_page"."@exa_extract\n"."\\end\{document\}";
+ close $OUTfig;
+ }# close while
+if (!$run) { # Move and rename tmp-exa-rand file to /image dir
+say "Moving the file $name-$prefix-exa-$tmp$ext to /$imageDir/$name-$prefix-exa-all$ext";
+move("$workdir/$name-$prefix-exa-$tmp$ext", "$imageDir/$name-$prefix-exa-all$ext");
+ }
+}# close $PSTexa
+
+### Create a one file whit "all" standard environments extracted
+if ($STDenv) {
+open my $OUTfig, '>', "$name-$prefix-$tmp$ext";
+ if ($noprew) { # $noprew option
+ say "Creating the temporary file $name-$prefix-$tmp$ext whit $envNo environments extracted";
+ my @env_extract;
+ while ( $bodydoc =~ m/(?<=$BP)(?<env_src>.+?)(?=$EP)/gms ) { # search $bodydoc
+ push @env_extract, $+{env_src}."\n\\newpage\n";
+ } # close while
+ print $OUTfig "$atbegindoc"."$preamble"."$opt_page"."@env_extract\n"."\\end{document}";
+ } # close $noprew
+ else { # default
+ say "Creating the temporary file $name-$prefix-$tmp$ext whit $envNo environment extracted using preview package";
+ print $OUTfig $atbegindoc.$preview.$preamble."\n".$bodydoc."\n\\end{document}";
+ }
+close $OUTfig;
+
+### Move tmp-rand file to /image dir
+if (!$run) {
+say "Moving the file $name-$prefix-$tmp$ext to /$imageDir/$name-$prefix-all$ext";
+ move("$workdir/$name-$prefix-$tmp$ext", "$imageDir/$name-$prefix-all$ext");
+ }
+} # close $STDenv
+
+### Define --shell-escape for TeXLive and MikTeX
+my $write18 = '-shell-escape'; # TeXLive
+ $write18 = '-enable-write18' if defined($ENV{"TEXSYSTEM"}) and
+ $ENV{"TEXSYSTEM"} =~ /miktex/i;
+
+### Define --interaction=mode for compilers
+my $opt_compiler = $verbose ? "$write18 -interaction=nonstopmode -recorder"
+ : "$write18 -interaction=batchmode -recorder"
+ ;
+
+### Define $silence
+my $silence = $verbose ? ''
+ : ">$null"
+ ;
+
+### Append -q to gs and poppler for system command line
+my $quiet = $verbose ? ''
+ : '-q'
+ ;
+
+### Compilers
+my $compiler = $xetex ? "xelatex $opt_compiler"
+ : $luatex ? "lualatex $opt_compiler"
+ : $latex ? "latex $opt_compiler"
+ : $dvips ? "latex $opt_compiler"
+ : $dvipdf ? "latex $opt_compiler"
+ : $arara ? 'arara'
+ : "pdflatex $opt_compiler"
+ ;
+
+### Message in command line for compilers
+my $msg_compiler = $xetex ? 'xelatex'
+ : $luatex ? 'lualatex'
+ : $latex ? 'latex>dvips>ps2pdf'
+ : $dvips ? 'latex>dvips>ps2pdf'
+ : $dvipdf ? 'latex>dvipdfmx'
+ : $arara ? 'arara'
+ : 'pdflatex'
+ ;
+
+### Options for ghostscript in command line
+my %opt_gs_dev = (
+ pdf => "$gscmd $quiet -dNOSAFER -sDEVICE=pdfwrite -dPDFSETTINGS=/prepress",
+ gray => "$gscmd $quiet -dNOSAFER -sDEVICE=pdfwrite -dPDFSETTINGS=/prepress -sColorConversionStrategy=Gray -dProcessColorModel=/DeviceGray",
+ png => "$gscmd $quiet -dNOSAFER -sDEVICE=pngalpha -r$DPI",
+ bmp => "$gscmd $quiet -dNOSAFER -sDEVICE=bmp32b -r$DPI",
+ jpg => "$gscmd $quiet -dNOSAFER -sDEVICE=jpeg -r$DPI -dJPEGQ=100 -dGraphicsAlphaBits=4 -dTextAlphaBits=4",
+ tif => "$gscmd $quiet -dNOSAFER -sDEVICE=tiff32nc -r$DPI",
+ );
+
+### Options for poppler-utils in command line
+my %opt_poppler = (
+ eps => "pdftops $quiet -eps",
+ ppm => "pdftoppm $quiet -r $DPI",
+ svg => "pdftocairo $quiet -svg",
+ );
+
+### Option for pdfcrop in command line
+my $opt_crop = $xetex ? "--xetex --margins $margins"
+ : $luatex ? "--luatex --margins $margins"
+ : $latex ? "--margins $margins"
+ : "--pdftex --margins $margins"
+ ;
+
+### Compiler generate file whit all environment extracted
+if ($run) {
+opendir(my $DIR, $workdir);
+while (readdir $DIR) {
+### Compiler generate file
+if (/(?<name>$name-$prefix(-exa)?)(?<type>-$tmp$ext)/) {
+ system("$compiler $+{name}$+{type} $silence");
+ say "Compiling the file $+{name}$+{type} using $msg_compiler";
+
+### Compiling file using latex>dvips>ps2pdf
+if ($dvips or $latex) {
+ system("dvips -q -Ppdf -o $+{name}-$tmp.ps $+{name}-$tmp.dvi");
+ system("ps2pdf -dPDFSETTINGS=/prepress -dAutoRotatePages=/None $+{name}-$tmp.ps $+{name}-$tmp.pdf");
+} # close latex
+
+### Compiling file using latex>dvipdfmx
+if ($dvipdf) { system("dvipdfmx -q $+{name}-$tmp.dvi"); }
+
+### If option gray
+if ($gray) {
+ say "Moving the file $+{name}-$tmp.pdf to $tempDir/$+{name}-all.pdf (gray scale)";
+ system("$opt_gs_dev{gray} -o $tempDir/$+{name}-all.pdf $workdir/$+{name}-$tmp.pdf");
+ move("$workdir/$+{name}-$tmp.pdf","$tempDir/$+{name}-$tmp.pdf");
+ }
+else {
+ say "Moving the file $+{name}-$tmp.pdf to $tempDir/$+{name}-all.pdf";
+ move("$workdir/$+{name}-$tmp.pdf", "$tempDir/$+{name}-all.pdf");
+}
+
+### Crop generate file
+if ($crop) {
+ say "The file $+{name}-all.pdf need a crop, using pdfcrop $opt_crop";
+ system("pdfcrop $opt_crop $tempDir/$+{name}-all.pdf $tempDir/$+{name}-all.pdf $silence");
+}
+
+### Move tmp-rand.tex file whit all source code for environments to /images dir
+move("$workdir/$+{name}$+{type}", "$imageDir/$+{name}-all$ext");
+ } # close if m/.../
+ } # close while
+closedir $DIR;
+} # close run
+
+### Append image format options
+$opts_cmd{pdf} = 'pdf' if $pdf; # ghostscript
+$opts_cmd{eps} = 1 if exists $opts_file{options}{eps}; # pdftops
+$opts_cmd{ppm} = 1 if exists $opts_file{options}{ppm}; # pdftoppm
+$opts_cmd{svg} = 1 if exists $opts_file{options}{svg}; # pdftocairo
+$opts_cmd{png} = 1 if exists $opts_file{options}{png}; # ghostscript
+$opts_cmd{jpg} = 1 if exists $opts_file{options}{jpg}; # ghostscript
+$opts_cmd{bmp} = 1 if exists $opts_file{options}{bmp}; # ghostscript
+$opts_cmd{tif} = 1 if exists $opts_file{options}{tif}; # ghostscript
+
+### Suported format
+my %format = (%opts_cmd);
+my $format = join " ",grep { defined $format{$_} } keys %format;
+
+### Create image formats in separate files
+if ($run) {
+opendir(my $DIR, $tempDir);
+while (readdir $DIR) {
+### PDF/PNG/JPG/BMP/TIFF format suported by ghostscript
+if (/(?<name>$name-$prefix(-exa)?)(?<type>-all\.pdf)/) {
+for my $var (qw(pdf png jpg bmp tif)) {
+ if (defined $opts_cmd{$var}) {
+ my $ghostcmd = "$opt_gs_dev{$var} -o $workdir/$imageDir/$+{name}-%1d.$var $tempDir/$+{name}$+{type}";
+ system("$ghostcmd");
+ print "Create a $var image format: runing command $opt_gs_dev{$var} in $+{name}$+{type}\r\n";
+ } # close defined for ghostscript
+ }# close for
+} # close if m/.../
+
+### EPS/PPM/SVG format suported by poppler-utils
+if (/(?<name>$name-$prefix)(?<type>-all\.pdf)/) {
+for my $var (qw(eps ppm svg)) {
+ if (defined $opts_cmd{$var}) {
+ for (my $epsNo = 1; $epsNo <= $envNo; $epsNo++) {
+my $poppler = "$opt_poppler{$var} -f $epsNo -l $epsNo $tempDir/$+{name}$+{type} $workdir/$imageDir/$+{name}-$epsNo.$var";
+system("$poppler");
+ } # close for C style
+print "Create a $var image format: runing command $opt_poppler{$var} in $+{name}$+{type}\r\n";
+ } # close defined
+ } # close for my $var
+} # close if m/.../
+
+### EPS/PPM/SVG for pst-exa package
+if (/(?<name>$name-$prefix-exa)(?<type>-all\.pdf)/) {
+for my $var (qw(eps ppm svg)) {
+ if (defined $opts_cmd{$var}) {
+ for (my $epsNo = 1; $epsNo <= $exaNo; $epsNo++) {
+my $poppler = "$opt_poppler{$var} -f $epsNo -l $epsNo $tempDir/$+{name}$+{type} $workdir/$imageDir/$+{name}-$epsNo.$var";
+system("$poppler");
+ } # close for C style
+print "Create a $var image format: runing command $opt_poppler{$var} in $+{name}$+{type}\r\n";
+ } # close defined
+ } # close for my $var
+ } # close if m/.../
+} # close while
+closedir $DIR; #close dir
+
+### Renaming PPM image files
+if (defined $opts_cmd{ppm}) {
+ opendir(my $DIR, $imageDir);
+ while (readdir $DIR) {
+ if (/(?<name>$name-fig(-exa)?-\d+\.ppm)(?<sep>-\d+)(?<ppm>\.ppm)/) {
+ move("$imageDir/$+{name}$+{sep}$+{ppm}", "$imageDir/$+{name}");
+ } # close if m/.../
+ } # close while
+ closedir $DIR;
+ } # close renaming PPM
+} # close run
+
+### Create a output file
+if ($outfile) {
+say "Creating the file $output$ext, convert extracted environments to \\includegraphics";
+
+### Convert extracted environments to \includegraphics
+my $grap = "\\includegraphics[scale=1]{$name-$prefix-";
+my $close = '}';
+my $imgNo = 1;
+$bodydoc =~ s/$BP.+?$EP/$grap@{[$imgNo++]}$close/msg; # changes
+
+### Constant
+my $USEPACK = quotemeta('\usepackage');
+my $GRAPHICPATH = quotemeta('\graphicspath{');
+
+### Precompiled regex
+my $CORCHETES = qr/\[ [^]]*? \]/x;
+my $PALABRAS = qr/\b (?: graphicx )/x;
+my $FAMILIA = qr/\{ \s* $PALABRAS (?: \s* [,] \s* $PALABRAS )* \s* \}(\%*)?/x;
+
+### Regex to capture \graphicspath
+my $graphix = qr/(\\ usepackage \s*\[\s* .+? \s*\] \s*\{\s* graphicx \s*\} )/ix;
+
+### Capture graphix package for future use
+my (@graphix) = $preamble =~ m/$graphix/x;
+
+### Remove graphix package
+$preamble =~ s/\%<\*ltximgverw> .+?\%<\/ltximgverw>(*SKIP)(*F)|
+ ^ $USEPACK (?: $CORCHETES )? $FAMILIA \s*//msxg;
+
+### Comment \graphicspath for order and future use
+$preamble =~s /\%<\*ltximgverw> .+?\%<\/ltximgverw>(*SKIP)(*F)|
+ ^ ($GRAPHICPATH) /%$1/msxg;
+
+### Regex to capture [options] for pst-exa package
+my $pstexa = qr/(?:\\ usepackage) \[\s*(.+?)\s*\] (?:\{\s*(pst-exa)\s*\} ) /x;
+
+### Capture [option] for pst-exa package
+my (@pst_exa) = $preamble =~ m/$pstexa/xg;
+
+### Search [option] in pst-exa package
+my %pst_exa = map { $_ => 1 } @pst_exa;
+
+### Clean file (pst/tags)
+if ($clean{pst}) {
+$PALABRAS = qr/\b (?: pst-\w+ | pstricks (?: -add )? | psfrag |psgo |vaucanson-g| auto-pst-pdf )/x;
+$FAMILIA = qr/\{ \s* $PALABRAS (?: \s* [,] \s* $PALABRAS )* \s* \}(\%*)?/x;
+
+### Remove pst packages lines
+$preamble =~ s/\%<\*ltximgverw> .+?\%<\/ltximgverw>(*SKIP)(*F)|
+ ^ $USEPACK (?: $CORCHETES )? $FAMILIA \s*//msxg;
+
+### Delete package words
+$preamble =~ s/\%<\*ltximgverw> .+?\%<\/ltximgverw>(*SKIP)(*F)|
+(?: ^ $USEPACK \{ | \G) [^}]*? \K (,?) \s* $PALABRAS (\s*) (,?) /$1 and $3 ? ',' : $1 ? $2 : ''/gemsx;
+
+### Delete \psset
+$preamble =~ s/\%<\*ltximgverw> .+?\%<\/ltximgverw>(*SKIP)(*F)|
+ \\psset\{(?:\{.*?\}|[^\{])*\}(?:[\t ]*(?:\r?\n|\r))+//gmsx;
+
+### Delete \SpecialCoor
+$preamble =~ s/\%<\*ltximgverw> .+?\%<\/ltximgverw>(*SKIP)(*F)|
+ \\SpecialCoor(?:[\t ]*(?:\r?\n|\r))+//gmsx;
+} # close clean{pst}
+
+### Delete empty package line \usepackage{}
+$preamble =~ s/^\\usepackage\{\}(?:[\t ]*(?:\r?\n|\r))+/\n/gmsx;
+
+### Append graphicx to end of preamble
+if (!@graphix == 0) {
+$preamble .= <<"EXTRA";
+@graphix
+EXTRA
+ } else {
+$preamble .= <<"EXTRA";
+\\usepackage{graphicx}
+EXTRA
+}
+
+### Regex to capture \graphicspath
+my $graphicspath= qr/\\ graphicspath \{ ((?: $llaves )+) \}/ix;
+
+### If preamble contain \graphicspath
+if ($preamble =~ m/($graphicspath)/m) {
+ while ($preamble =~ /$graphicspath /pgmx) {
+ my ($pos_inicial, $pos_final) = ($-[0], $+[0]);
+ my $encontrado = ${^MATCH};
+ if ($encontrado =~ /$graphicspath/) {
+ my $argumento = $1;
+ if ($argumento !~ /\{$imageDir\\\}/) {
+ $argumento .= "\{$imageDir/\}";
+ my $cambio = "\\graphicspath{$argumento}";
+ substr $preamble, $pos_inicial, $pos_final-$pos_inicial, $cambio;
+ pos($preamble) = $pos_inicial + length $cambio;
+ }
+ }
+ } #close while
+
+### Regex to capture
+my ($GraphicsPath) = $preamble =~ m/($graphicspath)/msx;
+
+### Append \graphicspath to end of preamble
+$preamble .= <<"EXTRA";
+$GraphicsPath
+\\usepackage{grfext}
+\\PrependGraphicsExtensions*{.pdf}
+EXTRA
+ } # close if ($preamble)
+else {
+### If preamble not contain graphicspath, append to premble
+my $GraphicsPath = "\\graphicspath\{\{$imageDir/\}\}";
+
+### Append graphicspath to end of preamble
+$preamble .= <<"EXTRA";
+$GraphicsPath
+\\usepackage{grfext}
+\\PrependGraphicsExtensions*{.pdf}
+EXTRA
+} # close graphicspath
+
+### Suport for \usepackage[swpl]{pst-exa}
+if (exists($pst_exa{swpl})) {
+$preamble .= <<'EXTRA';
+\usepackage[swpl,pdf]{pst-exa}
+EXTRA
+}
+
+### Suport for \usepackage[tcb]{pst-exa}
+if (exists($pst_exa{tcb})) {
+$preamble .= <<'EXTRA';
+\usepackage[tcb,pdf]{pst-exa}
+EXTRA
+### Regex
+$bodydoc =~ s/(graphic=\{)\[(scale=\d*)\]($imageDir\/$name-$prefix-exa-\d*)\}/$1$2\}\{$3\}/gsmx;
+} # close if
+
+### Options for out_file (add $end to outfile)
+my $out_file = $clean{doc} ? "$atbegindoc$preamble$bodydoc\n\\end\{document\}"
+ : "$atbegindoc$preamble$bodydoc\n$enddoc"
+ ;
+
+### Clean \psset content in output file
+if ($clean{pst}) {
+$out_file =~ s/\\begin\{nopreview\}.+?\\end\{nopreview\}(*SKIP)(*F)|
+ \%<\*ltximgverw> .+? \%<\/ltximgverw>(*SKIP)(*F)|
+ \\psset\{(?:\{.*?\}|[^\{])*\}(?:[\t ]*(?:\r?\n|\r))?+//gmsx;
+} # close clean
+
+### Clean \tikzset content in output file
+if ($clean{tkz}) {
+$out_file =~ s/\\begin\{nopreview\}.+?\\end\{nopreview\}(*SKIP)(*F)|
+ \%<\*ltximgverw> .+? \%<\/ltximgverw>(*SKIP)(*F)|
+ \\tikzset\{(?:\{.*?\}|[^\{])*\}(?:[\t ]*(?:\r?\n|\r))?+//gmsx;
+} # close clean
+
+### Revert changues in all words in outfile
+$out_file =~ s/\\begin\{nopreview\}\s*(.+?)\s*\\end\{nopreview\}/$1/gmsx;
+$out_file =~ s/\%<\*ltximgverw>\s*(.+?)\s*\%<\/ltximgverw>/$1/gmsx;
+$out_file =~ s/\%<\*noltximg>\n(.+?)\n\%<\/noltximg>/$1/gmsx;
+$out_file =~ s/^\%<\*remove>\s*(.+?)\s*\%<\/remove>(?:[\t ]*(?:\r?\n|\r))+//gmsx;
+$out_file =~ s/($delt_env)(?:[\t ]*(?:\r?\n|\r))?+//gmsx;
+$out_file =~ s/($find)/$replace{$1}/g;
+
+### Write output file
+open my $OUTfile, '>', "$output$ext";
+ print $OUTfile "$out_file";
+close $OUTfile;
+
+### Process the output file
+if ($run) {
+### Set correct $compiler, if input use latex then output use pdflatex
+$compiler = "pdflatex $opt_compiler" if $latex;
+$msg_compiler = "pdflatex" if $latex;
+
+### Compiling output file using pdflatex or arara
+say "Compiling file $output$ext using $msg_compiler";
+system("$compiler $output$ext $silence");
+
+### Compiling output file using latex>dvips>ps2pdf
+if ($dvips) {
+ system("dvips -q -Ppdf $output.dvi");
+ system("ps2pdf -dPDFSETTINGS=/prepress -dAutoRotatePages=/None $output.ps $output.pdf");
+} # close dvips
+
+### Compiling output file using latex>dvipdfmx
+if ($dvipdf) { system("dvipdfmx -q $output.dvi"); }
+ } # close run
+} # close outfile file
+
+### Remove temporary files
+if ($run) {
+say "Deleting (most) temporary files created during the process";
+my @protected = qw();
+push (@protected,"$output$ext","$output.pdf") if defined $output;
+
+my $flsline = "OUTPUT";
+my @flsfile;
+
+if ($PSTexa) { push @flsfile,"$name-$prefix-exa-$tmp.fls"; }
+if ($STDenv) { push @flsfile,"$name-$prefix-$tmp.fls"; }
+push (@flsfile,"$output.fls") if defined $output;
+
+my @tmpfiles;
+for my $filename(@flsfile){
+ open my $RECtmp, '<', "$filename";
+ push @tmpfiles, grep /^$flsline/,<$RECtmp>;
+ close $RECtmp;
+}
+
+foreach (@tmpfiles) { s/^$flsline\s+|\s+$//g; }
+
+if ($latex or $dvips) { push @tmpfiles,"$name-$prefix-$tmp.ps"; }
+if (-e "$name-$prefix-$tmp.ps") { push @tmpfiles,"$name-$prefix-$tmp.ps"; }
+if ($PSTexa) { push @tmpfiles,"$name-$prefix-exa-$tmp.ps"; }
+if (-e "$output.ps") { push @tmpfiles,"$output.ps"; }
+push @tmpfiles,@flsfile,"$name-$prefix-$tmp$ext","$name-$prefix-$tmp.pdf";
+
+my @delfiles = array_minus(@tmpfiles, @protected);
+foreach my $tmpfile (@delfiles) { move("$tmpfile", "$tempDir"); }
+} # close clean tmp files
+
+### Compress images dir whit generated files
+if ($zip or $tar) {
+my $stamp = strftime "%F", localtime;
+my $archivetar = "$imageDir-$stamp";
+
+my @savetozt;
+find(\&zip_tar, $imageDir);
+sub zip_tar{
+ my $filesto = $_;
+ if (-f $filesto && $filesto =~ m/$name-$prefix-.+?$/) { # buscamos
+ push @savetozt, $File::Find::name;
+ }
+}
+# Write compressed zip file
+if ($zip) {
+ say "Creating a file $workdir/$archivetar.zip";
+ zip \@savetozt => "$archivetar.zip";
+ }
+
+# Write compressed tar.gz file
+if ($tar) {
+ say "Creating a file $workdir/$archivetar.tar.gz";
+ my $imgdirtar = Archive::Tar->new();
+ $imgdirtar->add_files( @savetozt );
+ $imgdirtar->write( "$archivetar.tar.gz" , 9 );
+ }
+} #close compress
+
+### End of script process
+if ($run) { say "Finish, image formats: $format are in $workdir/$imageDir/"; }
+ else { say "Done"; }
+
+__END__