version 1.95, 2006/02/04 19:01:20
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version 1.126, 2007/09/21 20:56:30
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#!/usr/bin/perl |
#!/usr/bin/perl |
# CGI-script to run LaTeX, dvips, ps2ps, ps2pdf etc. |
# CGI-script to run LaTeX, dvips, ps2ps, ps2pdf etc. |
# |
# |
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# $Id$ |
# |
# |
# Copyright Michigan State University Board of Trustees |
# Copyright Michigan State University Board of Trustees |
# |
# |
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# http://www.lon-capa.org/ |
# http://www.lon-capa.org/ |
# |
# |
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BEGIN { |
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eval "use Apache2::compat();"; |
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}; |
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use lib '/home/httpd/lib/perl'; |
use lib '/home/httpd/lib/perl'; |
use LONCAPA::loncgi; |
use LONCAPA::loncgi; |
use File::Path; |
use File::Path; |
use File::Basename; |
use File::Basename; |
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use File::Copy; |
use IO::File; |
use IO::File; |
use Image::Magick; |
use Image::Magick; |
use Apache::lonhtmlcommon; |
use Apache::lonhtmlcommon(); |
use Apache::lonnet; |
use Apache::lonnet; |
use Apache::loncommon; |
use Apache::loncommon(); |
use Apache::lonlocal; |
use Apache::lonlocal; |
use Apache::lonmsg; |
use Apache::lonmsg(); |
use LONCAPA::Enrollment; |
use LONCAPA::Enrollment; |
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use LONCAPA::Configuration; |
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use strict; |
use strict; |
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Line 129 sub send_error_mail {
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Line 129 sub send_error_mail {
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foreach my $line (@$texfile) { |
foreach my $line (@$texfile) { |
$message .= "$line\n"; |
$message .= "$line\n"; |
} |
} |
my (undef, %receivers) = &Apache::lonfeedback::decide_receiver(undef, 0, |
my (undef, %receivers) = &Apache::lonmsg::decide_receiver(undef, 0, |
1,1,1); |
1,1,1); |
# print "<br /> sending...section: $env{'request.course.sec'}"; |
# print "<br /> sending...section: $env{'request.course.sec'}"; |
foreach my $dest (keys %receivers) { |
foreach my $dest (keys %receivers) { |
# print "<br /> dest is $dest"; |
# print "<br /> dest is $dest"; |
Line 162 Your cookie information is incorrect.
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Line 162 Your cookie information is incorrect.
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END |
END |
return; |
return; |
} |
} |
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|
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my %perlvar=%{&LONCAPA::Configuration::read_conf('loncapa.conf')}; |
&Apache::lonlocal::get_language_handle(); |
&Apache::lonlocal::get_language_handle(); |
&Apache::loncommon::content_type(undef,'text/html'); |
&Apache::loncommon::content_type(undef,'text/html'); |
my $bodytag=&Apache::loncommon::bodytag('Creating PDF','',''); |
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print $bodytag; |
print(&Apache::loncommon::start_page('Creating PDF')); |
|
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my $identifier = $ENV{'QUERY_STRING'}; |
my $identifier = $ENV{'QUERY_STRING'}; |
my $texfile = $env{'cgi.'.$identifier.'.file'}; |
my $texfile = $env{'cgi.'.$identifier.'.file'}; |
Line 189 END
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Line 191 END
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print "<a href=\"$backref\"><b>Return</b></a> to last resource.<br /><br />"; |
print "<a href=\"$backref\"><b>Return</b></a> to last resource.<br /><br />"; |
|
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my $figfile = $texfile; |
my $figfile = $texfile; |
$figfile =~ s/^([^\.]+printout)[^t]+\.tex/$1\.dat/; |
$figfile =~ s/^(.*_printout)_\d+_\d+_\d+\.tex/$1\.dat/; |
my $duefile = $texfile; |
my $duefile = $texfile; |
$duefile =~ s/^([^\.]+printout)[^t]+\.tex/$1\.due/; |
$duefile =~ s/^(.*_printout)_\d+_\d+_\d+\.tex/$1\.due/; |
#do we have figures? |
#do we have figures? |
# print "Figure file: $figfile\n"; |
# print "Figure file: $figfile\n"; |
if (-e $figfile) { |
if (-e $figfile) { |
Line 207 print "<a href=\"$backref\"><b>Return</b
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Line 209 print "<a href=\"$backref\"><b>Return</b
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foreach my $not_eps (@content_of_file) { |
foreach my $not_eps (@content_of_file) { |
chomp($not_eps); |
chomp($not_eps); |
if ($not_eps ne '') { |
if ($not_eps ne '') { |
# print "Converting $not_eps"; # Debugging. |
# print "Converting $not_eps"; # Debugging. |
my $status_statement='EPS picture for '.$not_eps; |
my $status_statement='EPS picture for '.$not_eps; |
# print "$status_statement\n"; |
# print "$status_statement\n"; |
$not_eps=~s|\/\.\/|\/|g; |
$not_eps=~s|\/\.\/|\/|g; |
my $eps_f = $not_eps; |
my $eps_f = $not_eps; |
# $eps_f =~ s/\.[^.]*$/\.eps/i; |
# $eps_f =~ s/\.[^.]*$/\.eps/i; |
$eps_f .= '.eps'; # Just append the eps ext. |
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if ($eps_f=~/\/home\/([^\/]+)\/public_html\//) { |
if ($eps_f=~/\/home\/([^\/]+)\/public_html\//) { |
$eps_f=~s/\/home\/([^\/]+)\/public_html/$1/; |
$eps_f=~s/\/home\/([^\/]+)\/public_html/$1/; |
$eps_f = '/home/httpd/prtspool/'.$eps_f; |
$eps_f = $perlvar{'lonPrtDir'}.'/'.$eps_f; |
} elsif ($eps_f=~/$Apache::lonnet::perlvar{'lonDocRoot'}\/res\//) { |
} elsif ($eps_f=~/$perlvar{'lonDocRoot'}\/res\//) { |
$eps_f=~m/$Apache::lonnet::perlvar{'lonDocRoot'}\/res\/(.+)/; |
$eps_f=~m/$perlvar{'lonDocRoot'}\/res\/(.+)/; |
$eps_f = '/home/httpd/prtspool/'.$1; |
$eps_f = $perlvar{'lonPrtDir'}.'/'.$1; |
} elsif ($eps_f=~/$Apache::lonnet::perlvar{'lonUsersDir'}\//) { |
} elsif ($eps_f=~/$perlvar{'lonUsersDir'}\//) { |
$eps_f=~/$Apache::lonnet::perlvar{'lonUsersDir'}\/([^\/]+)\/\w\/\w\/\w\/(.+)/; |
$eps_f=~/$perlvar{'lonUsersDir'}\/([^\/]+)\/\w\/\w\/\w\/(.+)/; |
$eps_f = '/home/httpd/prtspool/'.$1.'/'.$2; |
$eps_f = $perlvar{'lonPrtDir'}.'/'.$1.'/'.$2; |
} |
} |
$eps_f =~ s/ /\_/g; # Spaces are problematic for system commands and LaTeX. |
$eps_f =~ s/ /\_/g; # Spaces are problematic for system commands and LaTeX. |
my $path=$eps_f; |
# |
$path =~ s/\/([^\/]+)\.eps$//; |
# If the file is already an .eps or .ps file, |
# print "Final file path: $path "; # Debugging |
# We really just need to copy it from where it was to prtspool |
File::Path::mkpath($path,0,0777); |
# but with the spaces substituted to _'s. |
$not_eps =~ s/^\s+//; |
# |
$not_eps =~ s/\s+$//; |
my ($nsname,$path, $sext) = &fileparse($eps_f, qr/\.(ps|eps)/i); |
$not_eps =~ s/ /\\ /g; |
if ($sext =~/ps$/i) { |
if ( exists($done_conversion{$not_eps})) { next; } |
# print "$not_eps is a postscript file. copy to $path\n"; |
if ($advanced_role) { |
&File::Path::mkpath($path,0,0777); |
my $prettyname=$not_eps; |
#print("Made path: $path"); |
$prettyname=~s|/home/([^/]+)/public_html|/priv/$1|; |
#$not_eps =~ s/^\s+//; |
$prettyname=~s|$Apache::lonnet::perlvar{'lonDocRoot'}/|/|; |
#$not_eps =~ s/\s+$//; |
&Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state,'Converting to EPS '.$prettyname); |
#$not_eps =~ s/ /\__/g; |
} |
#print("Copying $not_eps to $eps_f\n"); |
$done_conversion{$not_eps}=1; |
copy("$not_eps", "$eps_f"); |
# print "Converting $not_eps -> $eps_f"; # Debugging |
# print "Copy complete\n"; |
system("convert $not_eps $eps_f"); |
} else { |
#check is eps exist in prtspool |
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if(not -e $eps_f) { |
$eps_f .= '.eps'; # Just append the eps ext. |
for (my $i=0;$i<10000;$i++) { |
my $path=$eps_f; |
if (-e $eps_f.'.'.$i) { |
$path =~ s/\/([^\/]+)\.eps$//; |
rename $eps_f.'.'.$i, $eps_f; |
# print "Final file path: $path "; # Debugging |
last; |
&File::Path::mkpath($path,0,0777); |
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$not_eps =~ s/^\s+//; |
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$not_eps =~ s/\s+$//; |
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$not_eps =~ s/ /\\ /g; |
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if ( exists($done_conversion{$not_eps})) { next; } |
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if ($advanced_role) { |
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my $prettyname=$not_eps; |
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$prettyname=~s|/home/([^/]+)/public_html|/priv/$1|; |
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$prettyname=~s|$perlvar{'lonDocRoot'}/|/|; |
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&Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state, |
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'Converting to EPS '.$prettyname); |
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} |
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$done_conversion{$not_eps}=1; |
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# print "Converting $not_eps -> $eps_f"; # Debugging |
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system("convert $not_eps $eps_f"); |
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# check is eps exist in prtspool |
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if (not -e $eps_f) { |
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# converting an animated gif creates either: |
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# anim.gif.eps.0 |
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# or |
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# anim.gif-0.eps |
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for (my $i=0;$i<10000;$i++) { |
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if (-e $eps_f.'.'.$i) { |
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rename($eps_f.'.'.$i, $eps_f); |
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last; |
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} |
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my $anim_eps = $eps_f; |
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$anim_eps =~ s/(\.[^.]*)\.eps$/$1-$i\.eps/i; |
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if (-e $anim_eps) { |
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rename($anim_eps, $eps_f); |
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last; |
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} |
} |
} |
} |
} |
} |
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# imagemagick 6.2.0-6.2.7 fails to properly handle |
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# convert anim.gif anim.gif.eps |
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# it creates anim.eps instead. |
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if (not -e $eps_f) { |
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my $eps_f2 = $eps_f; |
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$eps_f2 =~ s/\.[^.]*\.eps$/\.eps/i; |
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if(-e $eps_f2) { |
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rename($eps_f2,$eps_f); |
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} |
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} |
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} |
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} |
} |
} |
} |
if ($advanced_role) { |
if ($advanced_role) { |
Line 400 foreach $texfile (@texfile) {
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Line 444 foreach $texfile (@texfile) {
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print "</pre>\n"; |
print "</pre>\n"; |
# print "<br /> Advanced role <br />"; |
# print "<br /> Advanced role <br />"; |
print "<b><big>The link to "; |
print "<b><big>The link to "; |
$logfilename=~s/\/home\/httpd//; |
$logfilename=~s{^\Q$perlvar{'lonPrtDir'}\E}{/prtspool}; |
print "<a href=\"$logfilename\">Your log file </a></big></b>"; |
print "<a href=\"$logfilename\">Your log file </a></big></b>"; |
print "\n"; |
print "\n"; |
#link tooriginal LaTeX file (included according Michael Hamlin desire) |
#link tooriginal LaTeX file (included according Michael Hamlin desire) |
Line 413 foreach $texfile (@texfile) {
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Line 457 foreach $texfile (@texfile) {
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print $tex_temporary_file '<html><head><title>LOGFILE</title></head><body><pre>'.$body_tex_file.'</pre></body></html>'."\n"; |
print $tex_temporary_file '<html><head><title>LOGFILE</title></head><body><pre>'.$body_tex_file.'</pre></body></html>'."\n"; |
print "<br /><br />"; |
print "<br /><br />"; |
print "<b><big>The link to "; |
print "<b><big>The link to "; |
$texfile=~s/\/home\/httpd//; |
$texfile=~s{^\Q$perlvar{'lonPrtDir'}\E}{/prtspool}; |
print "<a href=\"$texfile\">Your original LaTeX file </a></big></b>"; |
print "<a href=\"$texfile\">Your original LaTeX file </a></big></b>"; |
print "\n"; |
print "\n"; |
my $help_text = &Apache::loncommon::help_open_topic("Print_Resource", "Help on printing"); |
my $help_text = &Apache::loncommon::help_open_topic("Print_Resource", "Help on printing"); |
Line 458 foreach $texfile (@texfile) {
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Line 502 foreach $texfile (@texfile) {
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"for $status_statement now Converting to PS", |
"for $status_statement now Converting to PS", |
\%prog_state,$new_name_file); |
\%prog_state,$new_name_file); |
if (-e $new_name_file) { |
if (-e $new_name_file) { |
print "<h1>PDF output file (see link below)</h1>\n"; |
my $latex_file = $name_file; |
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$latex_file =~ s/\.dvi/\.tex/; |
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&repaginate($new_name_file, $latex_file, $numberofcolumns); |
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# |
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# Now have to re-latex, re dvips again to |
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# get the repaginated postscript. |
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# |
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&busy_wait_command("latex $latex_file 1>/dev/null 2>/dev/null", |
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"for $status_statement first latex to repaginate", |
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\%prog_state, $name_file); |
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if ($tableofcontents eq 'yes') { |
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&busy_wait_command("latex $latex_file 1>/dev/null 2>/dev/null", |
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"for $status_statement second latex to repaginate", |
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\%prog_state, $name_file); |
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&busy_wait_command("latex $latex_file 1>/dev/null 2>/dev/null", |
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"for $status_statement third latex to repaginate", |
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\%prog_state, $name_file); |
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} |
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if ($tableofindex eq 'yes') { |
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my $idxname = $latex_file; |
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$idxname =~ s/\.tex$/\.idx/; |
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&busy_wait_command("makeindex $idxname", |
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"Re-creating index file", |
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\%prog_state, $idxname); |
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&busy_wait_command("latex $latex_file 1>/dev/null 2>/dev/null", |
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"for $status_statement now Recreting index (latex)", |
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\%prog_state, $dvi_file); |
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|
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} |
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&busy_wait_command("$comma $name_file 1>/dev/null 2>/dev/null", |
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"for $status_statement dvips to repaginate", |
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\%prog_state, $new_name_file); |
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# |
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# One last little hinky kinky thing. |
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# It's just possible that some fonts could not be maded |
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# at the resolution of the pdf print driver. |
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# In that case a file called missfont.log will have been |
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# created that will contain the commands that were attempted |
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# to create the missing fonts. If we basically |
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# take all the 8000 strings in that file, and |
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# replace them with 600 (the ljfour resolution) |
|
# run the commands in that file and redvips, |
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# we'll be able to print the missing glyphs at 600dpi. |
|
# |
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# Supposedly it is possible to tune TeX/Metafont to do this |
|
# right but I failed to get that to work when following the |
|
# docs at the tug site, hence this rather kludgey fix. |
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# |
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# We make the (I think) reasonable assumption that |
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# missing glyphs won't change the pagination and I think |
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# this is true because TeX/dvips will leave a space |
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# instead of these glyphs based on the font metrics |
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# (fancy way to say there will be a blank the size of the missing |
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# glyphs). |
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# |
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my $print_directory = dirname($name_file); |
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my $missfonts_file = $print_directory."/missfont.log"; |
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#print("<br /> Missing fonts file is: $missfonts_file"); |
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if (-e $missfonts_file) { |
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#print("<br />Missing fonts file exists\n"); |
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&create_missing_fonts($missfonts_file,\%prog_state); |
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&busy_wait_command("$comma $name_file 1>/dev/null 2>/dev/null", |
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"for $status_statement dvips generated missing fonts", |
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\%prog_state, $new_name_file); |
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} |
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# |
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print "\n<h1>PDF output file (see link below)</h1>\n"; |
$new_name_file =~ m/^(.*)\./; |
$new_name_file =~ m/^(.*)\./; |
my $ps_file = my $tempo_file = $1.'temporar.ps'; |
my $ps_file = my $tempo_file = $1.'temporar.ps'; |
my $pdf_file = $1.'.pdf'; |
my $pdf_file = $1.'.pdf'; |
Line 496 foreach $texfile (@texfile) {
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Line 607 foreach $texfile (@texfile) {
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$texps =~ s/\.tex/\.ps/; |
$texps =~ s/\.tex/\.ps/; |
my @garb = ($texaux,$texdvi,$texps); |
my @garb = ($texaux,$texdvi,$texps); |
# unlink @garb; |
# unlink @garb; |
unlink $duefile; |
unlink($duefile); |
print "<a href=\"/prtspool/$pdf_file\">Your PDF document</a>"; |
print "<a href=\"/prtspool/$pdf_file\">Your PDF document</a>"; |
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unlink($missfonts_file); |
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} |
} |
if ($advanced_role) { |
if ($advanced_role) { |
print "<br /><br />"; |
print "<br /><br />"; |
print "<b><big>The link to "; |
print "<b><big>The link to "; |
$logfilename=~s/\/home\/httpd//; |
$logfilename=~s{^\Q$perlvar{'lonPrtDir'}\E}{/prtspool}; |
print "<a href=\"$logfilename\">Your log file </a></big></b>"; |
print "<a href=\"$logfilename\">Your log file </a></big></b>"; |
print "\n"; |
print "\n"; |
#link tooriginal LaTeX file (included according Michael Hamlin desire) |
#link tooriginal LaTeX file (included according Michael Hamlin desire) |
Line 515 foreach $texfile (@texfile) {
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Line 628 foreach $texfile (@texfile) {
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print $tex_temporary_file '<html><head><title>LOGFILE</title></head><body><pre>'.$body_tex_file.'</pre></body></html>'."\n"; |
print $tex_temporary_file '<html><head><title>LOGFILE</title></head><body><pre>'.$body_tex_file.'</pre></body></html>'."\n"; |
print "<br /><br />"; |
print "<br /><br />"; |
print "<b><big>The link to "; |
print "<b><big>The link to "; |
$texfile=~s/\/home\/httpd//; |
$texfile=~s{^\Q$perlvar{'lonPrtDir'}\E}{/prtspool}; |
print "<a href=\"$texfile\">Your original LaTeX file </a></big></b>"; |
print "<a href=\"$texfile\">Your original LaTeX file </a></big></b>"; |
print "\n"; |
print "\n"; |
} |
} |
|
|
} else { |
} else { |
#LaTeX successfully parsed tex file |
#LaTeX successfully parsed tex file |
$name_file =~ s/\.tex/\.dvi/; |
$name_file =~ s/\.tex/\.dvi/; |
Line 531 foreach $texfile (@texfile) {
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Line 645 foreach $texfile (@texfile) {
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&busy_wait_command("$comma $name_file 1>/dev/null 2>/dev/null", |
&busy_wait_command("$comma $name_file 1>/dev/null 2>/dev/null", |
"for $status_statement now Converting to PS", |
"for $status_statement now Converting to PS", |
\%prog_state,$new_name_file); |
\%prog_state,$new_name_file); |
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# |
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# One last little hinky kinky thing. |
|
# It's just possible that some fonts could not be maded |
|
# at the resolution of the pdf print driver. |
|
# In that case a file called missfont.log will have been |
|
# created that will contain the commands that were attempted |
|
# to create the missing fonts. If we basically |
|
# take all the 8000 strings in that file, and |
|
# replace them with 600 (the ljfour resolution) |
|
# run the commands in that file and redvips, |
|
# we'll be able to print the missing glyphs at 600dpi. |
|
# |
|
# Supposedly it is possible to tune TeX/Metafont to do this |
|
# right but I failed to get that to work when following the |
|
# docs at the tug site, hence this rather kludgey fix. |
|
# |
|
# We make the (I think) reasonable assumption that |
|
# missing glyphs won't change the pagination and I think |
|
# this is true because TeX/dvips will leave a space |
|
# instead of these glyphs based on the font metrics |
|
# (fancy way to say there will be a blank the size of the missing |
|
# glyphs). |
|
# |
|
my $print_directory = dirname($name_file); |
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my $missfonts_file = $print_directory."/missfont.log"; |
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#print("<br /> Missing fonts file is: $missfonts_file"); |
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if (-e $missfonts_file) { |
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#print("<br />Missing fonts file exists\n"); |
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&create_missing_fonts($missfonts_file,\%prog_state); |
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&busy_wait_command("$comma $name_file 1>/dev/null 2>/dev/null", |
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"for $status_statement dvips generated missing fonts", |
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\%prog_state, $new_name_file); |
|
} |
if (-e $new_name_file) { |
if (-e $new_name_file) { |
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my $latex_file = $name_file; |
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$latex_file =~ s/\.dvi/\.tex/; |
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&repaginate($new_name_file, $latex_file, $numberofcolumns); |
|
&busy_wait_command("latex $latex_file 1>/dev/null 2>/dev/null", |
|
"for $status_statement first latex to repaginate", |
|
\%prog_state, $name_file); |
|
if ($tableofcontents eq 'yes') { |
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&busy_wait_command("latex $latex_file 1>/dev/null 2>/dev/null", |
|
"for $status_statement second latex to repaginate", |
|
\%prog_state, $name_file); |
|
&busy_wait_command("latex $latex_file 1>/dev/null 2>/dev/null", |
|
"for $status_statement third latex to repaginate", |
|
\%prog_state, $name_file); |
|
} |
|
if ($tableofindex eq 'yes') { |
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my $idxname = $latex_file; |
|
$idxname =~ s/\.tex$/\.idx/; |
|
&busy_wait_command("makeindex $idxname", |
|
"Re-creating index file", |
|
\%prog_state, $idxname); |
|
&busy_wait_command("latex $latex_file 1>/dev/null 2>/dev/null", |
|
"for $status_statement now Recreting index (latex)", |
|
\%prog_state, $dvi_file); |
|
} |
|
&busy_wait_command("$comma $name_file 1>/dev/null 2>/dev/null", |
|
"for $status_statement dvips to repaginate", |
|
\%prog_state, $new_name_file); |
|
|
print "<br />"; |
print "<br />"; |
$new_name_file =~ m/^(.*)\./; |
$new_name_file =~ m/^(.*)\./; |
my $ps_file = my $tempo_file = $1.'temporar.ps'; |
my $ps_file = my $tempo_file = $1.'temporar.ps'; |
Line 585 foreach $texfile (@texfile) {
|
Line 760 foreach $texfile (@texfile) {
|
$texps =~ s/\.tex/\.ps/; |
$texps =~ s/\.tex/\.ps/; |
my @garb = ($texlog,$texaux,$texdvi,$texps); |
my @garb = ($texlog,$texaux,$texdvi,$texps); |
# unlink @garb; |
# unlink @garb; |
unlink $duefile; |
unlink($duefile); |
print "<a href=\"/prtspool/$pdf_file\">$link_text - click here to download pdf</a>"; |
print "<a href=\"/prtspool/$pdf_file\">$link_text - click here to download pdf</a>"; |
print "\n"; |
print "\n"; |
} |
} |
|
unlink($missfonts_file); |
|
|
} |
} |
} else { |
} else { |
print "LaTeX file $texfile was not created successfully"; |
print "LaTeX file $texfile was not created successfully"; |
Line 606 if ($number_of_files>1) {
|
Line 783 if ($number_of_files>1) {
|
print("<pre>Zip Output:\n"); |
print("<pre>Zip Output:\n"); |
system($statement); |
system($statement); |
print("</pre>"); |
print("</pre>"); |
$zipfile=~s/\/home\/httpd//; |
$zipfile=~s{^\Q$perlvar{'lonPrtDir'}\E}{/prtspool}; |
print "<br /> A <a href=\"$zipfile\">ZIP file</a> of all the PDFs."; |
print "<br /> A <a href=\"$zipfile\">ZIP file</a> of all the PDFs."; |
} |
} |
if ($advanced_role) { &Apache::lonhtmlcommon::Close_PrgWin('',\%prog_state); } |
if ($advanced_role) { &Apache::lonhtmlcommon::Close_PrgWin('',\%prog_state); } |
|
print(&Apache::loncommon::end_page()); |
my $done; |
my $done; |
|
|
sub REAPER { |
sub REAPER { |
$done=1; |
$done=1; |
} |
} |
Line 641 sub busy_wait_command {
|
Line 819 sub busy_wait_command {
|
close(CMD); |
close(CMD); |
} |
} |
|
|
|
# Repagninate |
|
# What we need to do: |
|
# - Count the number of pages in each student. |
|
# - Rewrite the latex file replacing the \specials that |
|
# mark the end of student with an appropriate number of newlines. |
|
# parameters: |
|
# psfile - Postscript filename |
|
# latexfile - LaTeX filename |
|
# columns - number of columns. |
|
sub repaginate { |
|
|
|
# We will try to do this in 2 passes through the postscript since |
|
# the postscript is potentially large, to do 2 passes, the first pass |
|
# must be able to calculate the total number of document pages so that |
|
# at the beginning of the second pass we already know how to replace |
|
# %%Pages: |
|
|
|
# Figure out |
|
# 1. Number of pages in the document |
|
# 2. Maximum number of pages in a student |
|
# 3. Number of pages in each student. |
|
|
|
my ($postscript_filename, $latex_filename, $num_columns) = @_; |
|
open(PSFILE, "<$postscript_filename"); |
|
my $line; |
|
my $total_pages; # Total pages in document. |
|
my $seen_pages = 0; # There are several %%Pages only the first is useful |
|
my @pages_in_student; # For each student his/her initial page count. |
|
my $max_pages = 0; # Pages in 'longest' student. |
|
my $page_number = 0; |
|
&Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state, |
|
&mt("Counting pages for student: [_1]",1)); |
|
|
|
while ($line = <PSFILE>) { |
|
|
|
# Check for total pages (%%Pages:) |
|
|
|
if (($line =~ /^%%Pages:/) && (!$seen_pages)) { |
|
my @pageinfo = split(/ /,$line); |
|
$total_pages = $pageinfo[1]; |
|
$seen_pages = 1; |
|
} |
|
# Check for %%Page: n m $page_number will be the |
|
# biggest of these until we see an endofstudent. |
|
# Note that minipages generate spurious %Page: 1 1's so |
|
# we only are looking for the largest n (n is page number at the |
|
# bottom of the page, m the page number within the document. |
|
# |
|
|
|
if ($line =~ /^%%Page:/) { |
|
my @pageinfo = split(/\s+/, $line); |
|
if ($page_number < $pageinfo[1]) { |
|
$page_number = $pageinfo[1]; |
|
} elsif ($pageinfo[2] ne 1) { |
|
# current page count reset, and it's not because of a |
|
# minipage |
|
# - save the page_number, reset and, if necessary |
|
# update max_pages. |
|
push(@pages_in_student, $page_number); |
|
&Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state, |
|
&mt("Counting pages for student: [_1]", scalar(@pages_in_student))); |
|
if ($page_number > $max_pages) { |
|
$max_pages = $page_number; |
|
} |
|
$page_number = $pageinfo[1]; |
|
} |
|
} |
|
|
|
|
|
} |
|
# file ended so one more student |
|
push(@pages_in_student, $page_number); |
|
&Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state, |
|
&mt("Counting pages for student: [_1]",scalar(@pages_in_student))); |
|
if ($page_number > $max_pages) { |
|
$max_pages = $page_number; |
|
} |
|
$page_number = 0; |
|
|
|
close(PSFILE); |
|
|
|
# If 2 columns, max_pages must go to an even number of columns: |
|
|
|
|
|
if ($num_columns == 2) { |
|
if ($max_pages % 2) { |
|
$max_pages++; |
|
} |
|
} |
|
|
|
# Now rewrite the LaTex file, substituting our \special |
|
# with an appropriate number of \newpage directives. |
|
|
|
my $outfilename = $latex_filename."temp"; |
|
|
|
open(LATEXIN, "<$latex_filename"); |
|
open(LATEXOUT, ">$outfilename"); |
|
|
|
|
|
my $student_number = 0; # Index of student we're working on. |
|
&Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state, |
|
"Repaginating student ".$student_number+1); |
|
|
|
while (my $line = <LATEXIN>) { |
|
if ($line eq "\\special{ps:ENDOFSTUDENTSTAMP}\n") { |
|
# only end of student stamp if next line is ENDOFSTUDENTSTAMP: |
|
|
|
|
|
# End of student replace with 0 or more newpages. |
|
|
|
my $addlines = $max_pages - $pages_in_student[$student_number]; |
|
while($addlines) { |
|
print LATEXOUT '\clearpage \strut \clearpage'; |
|
|
|
$addlines--; |
|
} |
|
|
|
$student_number++; |
|
&Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state, |
|
"Repaginating student ".$student_number+1); |
|
|
|
} else { |
|
print LATEXOUT $line; |
|
} |
|
} |
|
|
|
close(LATEXIN); |
|
close(LATEXOUT); |
|
rename($outfilename, $latex_filename); |
|
|
|
} |
|
|
|
# |
|
# Create missing fonts given a latex missfonts.log file. |
|
# This file will have lines like: |
|
# |
|
# mktexpk --mfmode ljfour --bdpi 8000 --mag 1+0/8000 --dpi 8000 tcrm0500 |
|
# |
|
# We want to execute those lines with the 8000's changed to 600's |
|
# in order to match the resolution of the ljfour printer. |
|
# Of course if some wiseguy has changed the default printer from ljfour |
|
# in the dvips's config.ps file that will break so we'll also |
|
# ensure that --mfmode is ljfour. |
|
# |
|
sub create_missing_fonts { |
|
my ($fontfile, $state) = @_; |
|
|
|
# Open and read in the font file..we'll read it into the array |
|
# font_commands. |
|
# |
|
open(my $font_handle, $fontfile); |
|
my @font_commands = <$font_handle>; |
|
|
|
# make the list contain each command only once |
|
my %uniq; |
|
@font_commands = map { $uniq{$_}++ == 0 ? $_ : () } @font_commands; |
|
|
|
# Now process each command replacing the appropriate 8000's with |
|
# 600's ensuring that font names with 8000's in them are not corrupted. |
|
# and if the --mfmode is not ljfour we turn it into ljfour. |
|
# Then we execute the command. |
|
# |
|
|
|
foreach my $command (@font_commands) { |
|
#print("<br />Raw command: $command"); |
|
$command =~ s/ 8000/ 600/g; # dpi directives. |
|
$command =~ s/\/8000/\/600/g; # mag directives. |
|
#print("<br />After dpi replacements: $command"); |
|
|
|
my @cmdarray = split(/ /,$command); |
|
for (my $i =0; $i < scalar(@cmdarray); $i++) { |
|
if ($cmdarray[$i] eq '--mfmode') { |
|
$cmdarray[$i+1] = "ljfour"; |
|
} |
|
} |
|
#print("<br /> before reassembly : (@cmdarray)"); |
|
$command = join(" ", (@cmdarray)); |
|
|
|
#print("<br />Creating fonts via command: $command"); |
|
&busy_wait_command("$command 1>/dev/null 2>/dev/null", |
|
"Creating missing font", |
|
$state); |
|
|
|
} |
|
|
|
} |