',$tempobegin+10;
- }
- $name_file =~ s/\.tex/\.dvi/;
- my $new_name_file = $name_file;
- $new_name_file =~ s/\.dvi/\.ps/;
- my $papera=$paper;
- if ($papera eq 'letter') {$papera='';}
- if ($papera ne '') {$papera='-t'.$papera;}
- my $comma = "dvips $papera -Ppdf -G0 -o $new_name_file";
- &busy_wait_command("$comma $name_file 1>/dev/null 2>/dev/null",
- "for $status_statement now Converting to PS",
- \%prog_state,$new_name_file);
- if (-e $new_name_file) {
- my $latex_file = $name_file;
- $latex_file =~ s/\.dvi/\.tex/;
- &repaginate($new_name_file, $latex_file, $numberofcolumns);
- #
- # Now have to re-latex, re dvips again to
- # get the repaginated postscript.
- #
- &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') {
- &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') {
- my $idxname = $latex_file;
- $idxname =~ s/\.tex$/\.idx/;
- &busy_wait_command("makindex $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 "\nPDF output file (see link below)
\n";
- $new_name_file =~ m/^(.*)\./;
- my $ps_file = my $tempo_file = $1.'temporar.ps';
- my $pdf_file = $1.'.pdf';
- if ($laystyle eq 'album' and $numberofcolumns eq '2') {
- my $papera=$paper;
- if ($papera eq 'letter') {$papera='';}
- if ($papera ne '') {$papera='-p'.$papera;}
- $comma = "psnup $papera -2 -s1.0 $new_name_file";
- &busy_wait_command("$comma $tempo_file 1>/dev/null 2>/dev/null",
- "for $status_statement now Modifying PS layout",
- \%prog_state,$tempo_file);
- } elsif ($laystyle eq 'book' and $numberofcolumns eq '2') {
- my $papera=$paper;
- if ($papera eq 'letter') {$papera='';}
- if ($papera ne '') {$papera='-p'.$papera;}
- $comma = 'pstops '.$papera.' "2:0+1(0.48w,0)"';
- &busy_wait_command("$comma $new_name_file $tempo_file 1>/dev/null 2>/dev/null",
- "for $status_statement now Modifying PS layout",
- \%prog_state,$tempo_file);
+ my $logfilename = $texfile; $logfilename =~ s/\.tex$/\.log/;
- } else {
- $ps_file=$new_name_file;
- }
- &busy_wait_command("ps2pdf $ps_file $pdf_file 1>/dev/null 2>/dev/null",
- "for $status_statement now Converting PS to PDF",
- \%prog_state, $pdf_file);
- my $texlog = $texfile;
- my $texaux = $texfile;
- my $texdvi = $texfile;
- my $texps = $texfile;
- $texlog =~ s/\.tex/\.log/;
- $texaux =~ s/\.tex/\.aux/;
- $texdvi =~ s/\.tex/\.dvi/;
- $texps =~ s/\.tex/\.ps/;
- my @garb = ($texaux,$texdvi,$texps);
-# unlink @garb;
- unlink $duefile;
- print "Your PDF document";
- }
- if ($advanced_role) {
- print "
";
- print "The link to ";
- $logfilename=~s/\/home\/httpd//;
- print "Your log file ";
- print "\n";
- #link tooriginal LaTeX file (included according Michael Hamlin desire)
- my $tex_temporary_file=IO::File->new($texfile) || die "Couldn't open tex file $texfile for reading: $!\n";
- my @tex_content_of_file = <$tex_temporary_file>;
- close $tex_temporary_file;
- my $body_tex_file = join(' ',@tex_content_of_file);
- $texfile =~ s/\.tex$/aaaaa\.html/;
- $tex_temporary_file = IO::File->new('>'.$texfile);
- print $tex_temporary_file 'LOGFILE'.$body_tex_file.'
'."\n";
- print "
";
- print "The link to ";
- $texfile=~s/\/home\/httpd//;
- print "Your original LaTeX file ";
- print "\n";
- }
- } else {
+ if (&analyze_logfile($logfilename, $texfile, $advanced_role)) {
+
+
#LaTeX successfully parsed tex file
$name_file =~ s/\.tex/\.dvi/;
my $new_name_file = $name_file;
@@ -598,51 +422,76 @@ foreach $texfile (@texfile) {
my $papera=$paper;
if ($papera eq 'letter') {$papera='';}
if ($papera ne '') {$papera='-t'.$papera;}
- my $comma = "dvips $papera -Ppdf -G0 -o $new_name_file";
+ my $extra_ps_header = $perlvar{'lonLib'} .'/includepsheader.ps';
+ my $comma = "dvips $papera -h $extra_ps_header -Ppdf -G0 -o $new_name_file";
&busy_wait_command("$comma $name_file 1>/dev/null 2>/dev/null",
"for $status_statement now Converting to PS",
\%prog_state,$new_name_file);
+ #
+ # 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.
+ #
+
+ my $print_directory = dirname($name_file);
+ my $missfonts_file = $print_directory."/missfont.log";
+ #print("
Missing fonts file is: $missfonts_file");
+ if (-e $missfonts_file) {
+ #print("
Missing fonts file exists\n");
+ &create_missing_fonts($missfonts_file,\%prog_state);
+ &busy_wait_command("$comma $name_file 1>/dev/null 2>/dev/null",
+ "for $status_statement dvips generated missing fonts",
+ \%prog_state, $new_name_file);
+ }
if (-e $new_name_file) {
my $latex_file = $name_file;
$latex_file =~ s/\.dvi/\.tex/;
&repaginate($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') {
- &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') {
- 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, $dvi_file);
- }
+
+ &make_dvi_file($latex_file,
+ $name_file,
+ $tableofcontents,
+ $tableofindex,
+ $status_statement,
+ \%prog_state,
+ $busy_wait_timeout);
+
+
&busy_wait_command("$comma $name_file 1>/dev/null 2>/dev/null",
"for $status_statement dvips to repaginate",
\%prog_state, $new_name_file);
+
print "
";
$new_name_file =~ m/^(.*)\./;
my $ps_file = my $tempo_file = $1.'temporar.ps';
my $pdf_file = $1.'.pdf';
$papera=~s/t/p/;
+ $comma = "fixps --force $new_name_file";
+ &debug("FIXPS command: $comma");
+ &busy_wait_command("$comma 1>/dev/null 2>/dev/null",
+ "for $status_statement now validating PS",
+ \%prog_state,$tempo_file);
if ($laystyle eq 'album' and $numberofcolumns eq '2') {
$comma = "psnup $papera -2 -s1.0 $new_name_file";
+ &debug("PSNUP command: $comma");
&busy_wait_command("$comma $tempo_file 1>/dev/null 2>/dev/null",
"for $status_statement now Modifying PS layout",
\%prog_state,$tempo_file);
} elsif ($laystyle eq 'book' and $numberofcolumns eq '2') {
- $comma = 'pstops '.$papera.' "2:0+1(0.48w,0)"';
- &busy_wait_command("$comma $new_name_file $tempo_file 1>/dev/null 2>/dev/null",
+ $comma = 'pstops '.$papera.' "2:0+1(0.48w,0)" '.$new_name_file;
+ &debug("PSTOPS command: $comma ");
+ &busy_wait_command("$comma $tempo_file 1>/dev/null 2>/dev/null",
"for $status_statement now Modifying PS layout",
\%prog_state,$tempo_file);
} else {
@@ -669,7 +518,7 @@ foreach $texfile (@texfile) {
close(FFHS);
$ps_file=$new_ps_file;
}
- &busy_wait_command("ps2pdf $ps_file $pdf_file 1>/dev/null 2>/dev/null",
+ &busy_wait_command("ps2pdf13 $ps_file $pdf_file 1>/dev/null 2>/dev/null",
"for $status_statement now Converting PS to PDF",
\%prog_state,$pdf_file);
@@ -683,10 +532,12 @@ foreach $texfile (@texfile) {
$texps =~ s/\.tex/\.ps/;
my @garb = ($texlog,$texaux,$texdvi,$texps);
# unlink @garb;
- unlink $duefile;
+ unlink($duefile);
print "$link_text - click here to download pdf";
print "\n";
}
+ unlink($missfonts_file);
+
}
} else {
print "LaTeX file $texfile was not created successfully";
@@ -704,7 +555,7 @@ if ($number_of_files>1) {
print("Zip Output:\n");
system($statement);
print("");
- $zipfile=~s/\/home\/httpd//;
+ $zipfile=~s{^\Q$perlvar{'lonPrtDir'}\E}{/prtspool};
print "
A ZIP file of all the PDFs.";
}
if ($advanced_role) { &Apache::lonhtmlcommon::Close_PrgWin('',\%prog_state); }
@@ -714,9 +565,17 @@ my $done;
sub REAPER {
$done=1;
}
-
+#
+# Execute a command updating the status window as the command's
+# output file builds up (at intervals of a second).
+#
+# If the timeout argument defined, then if that many seconds
+# elapses without an increase in the size of the output file,
+# the command will be killed (this deals with the case when
+# latex crawls into an infinite loop).
+#
sub busy_wait_command {
- my ($command,$message,$progress_win,$output_file)=@_;
+ my ($command,$message,$progress_win,$output_file, $timeout)=@_;
$SIG{CHLD} = \&REAPER;
$done=0;
@@ -724,12 +583,30 @@ sub busy_wait_command {
if ($advanced_role) {
&Apache::lonhtmlcommon::Update_PrgWin('',$progress_win,$message);
}
+ my $last_size = 0;
+ my $unchanged_time = 0;
while(!$done) {
sleep 1;
my $extra_msg;
if ($output_file) {
my $size=(stat($output_file))[7];
$extra_msg=", $size bytes generated";
+ if ($size == $last_size) {
+ $unchanged_time++;
+ if ($timeout && ($unchanged_time > $timeout)) {
+ print "Operation timed out!
\n";
+ print "Executing $command, the output file $output_file did not grow\n";
+ print "after $timeout seconds. This may indicate $command\n";
+ print "is in an infinite loop.\n";
+ print "See if printing fewer copies helps. Please contact LON-CAPA\n";
+ print "support about this in any event.";
+ print "
";
+ kill(9, $pid); # Reaper will do the rest...I hope there's errors in the log.
+ }
+ } else {
+ $last_size = $size;
+ $unchanged_time = 0;
+ }
}
if ($advanced_role) {
&Apache::lonhtmlcommon::Update_PrgWin('',$progress_win,
@@ -740,6 +617,66 @@ sub busy_wait_command {
close(CMD);
}
+# Make the dvi file (or rather try to), from the latex file and the
+# various bits and pieces that control how the latex file is processed:
+# LaTeX is run as many times a needed to make this all happen... this may
+# result in several runs of LaTeX that just are errors if the LaTeX is
+# bad, but the printing subsystem is _supposed_ to not do that.
+#
+# Parameters:
+# name_file - Name of the LaTeX file to process.
+# dvi_file - Name of resulting dvi file.
+# tableofcontents - "yes" if we are supposed to make a table of contents.
+# tableofindex - "yes" if we are suposed to make an index.
+# status_statement - Part of the status statement for ths status window.
+# prog_state - Reference to the program state hash.
+# busy_wait_timeout- Seconds without any progress that imply a problem.
+#
+#
+sub make_dvi_file {
+ my ($name_file,
+ $dvi_file,
+ $tableofcontents,
+ $tableofindex,
+ $status_statement,
+ $prog_state,
+ $busy_wait_timeout) = @_;
+
+
+ &busy_wait_command("latex $name_file 1>/dev/null 2>/dev/null",
+ "for $status_statement now LaTeXing file",
+ $prog_state,$dvi_file, $busy_wait_timeout);
+
+ # If the tableof contents was requested, we need to run
+ # LaTex a couple more times to get all the references sorted out.
+
+ if ($tableofcontents eq 'yes') {
+ &busy_wait_command("latex $name_file 1>/dev/null 2>/dev/null",
+ "for $status_statement First LaTeX of file for table of contents",
+ $prog_state,$dvi_file, $busy_wait_timeout);
+ &busy_wait_command("latex $name_file 1>/dev/null 2>/dev/null",
+ "for $status_statement Second LaTeX of file for table of contents",
+ $prog_state,$dvi_file,$busy_wait_timeout);
+ }
+
+ # And makeindex and another run of LaTeX to incorporate it if the index
+ # is enabled.
+
+
+ if ($tableofindex eq 'yes') {
+ my $idxname=$name_file;
+ $idxname=~s/\.tex$/\.idx/;
+ &busy_wait_command("makeindex $idxname",
+ "making index file",
+ $prog_state,$idxname);
+ &busy_wait_command("latex $name_file 1>/dev/null 2>/dev/null",
+ "for $status_statement now LaTeXing file for index section",
+ $prog_state,$dvi_file, $busy_wait_timeout);
+ }
+
+}
+
+
# Repagninate
# What we need to do:
# - Count the number of pages in each student.
@@ -789,8 +726,8 @@ sub repaginate {
# bottom of the page, m the page number within the document.
#
- if ($line =~ /^%%Page:/) {
- my @pageinfo = split(/ /, $line);
+ if ($line =~ /^%%Page:\s+\d+\s+\d+/) {
+ my @pageinfo = split(/\s+/, $line);
if ($page_number < $pageinfo[1]) {
$page_number = $pageinfo[1];
} elsif ($pageinfo[2] ne 1) {
@@ -872,3 +809,332 @@ sub repaginate {
}
+#
+# 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("
Raw command: $command");
+ $command =~ s/ 8000/ 600/g; # dpi directives.
+ $command =~ s/\/8000/\/600/g; # mag directives.
+ #print("
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("
before reassembly : (@cmdarray)");
+ $command = join(" ", (@cmdarray));
+
+ #print("
Creating fonts via command: $command");
+ &busy_wait_command("$command 1>/dev/null 2>/dev/null",
+ "Creating missing font",
+ $state);
+
+ }
+
+}
+#
+# Convert a figure file to encapsulated postscript:
+# At present, this is using a lot of file scoped globals to pass data around.
+# Parameters:
+# not_eps - The name of the file to convert which, presumably, is not
+# already an eps file.
+#
+sub convert_figure {
+ my ($not_eps) = @_;
+ &debug("in convert_figure");
+
+ my $status_statement='EPS picture for '.$not_eps;
+ my $eps_f = $not_eps;
+
+ if ($eps_f=~/\/home\/([^\/]+)\/public_html\//) {
+ $eps_f=~s/\/home\/([^\/]+)\/public_html/$1/;
+ } elsif ($eps_f=~/$perlvar{'lonDocRoot'}\/res\//) {
+ $eps_f=~ s/$perlvar{'lonDocRoot'}\/res\/(.+)/$1/;
+ } elsif ($eps_f=~/$perlvar{'lonUsersDir'}\//) {
+ $eps_f=~ s/$perlvar{'lonUsersDir'}\/([^\/]+)\/\w\/\w\/\w\/(.+)/$1\/$2/;
+ }
+
+ $eps_f = $perlvar{'lonPrtDir'}.'/'.$eps_f;
+
+ # Spaces are problematic for system commands and LaTeX, replace with _
+
+ $eps_f =~ s/ /\_/g;
+
+ #
+ # If the file is already an .eps or .ps file (eps_f still has the original
+ # file type),
+ # We really just need to copy it from where it was to prtspool
+ # but with the spaces substituted to _'s.
+ #
+ my ($nsname,$path, $sext) = &fileparse($eps_f, qr/\.(ps|eps)/i);
+ if ($sext =~/ps$/i) {
+ &File::Path::mkpath($path,0,0777);
+ copy("$not_eps", "$eps_f");
+ } else {
+
+ $eps_f .= '.eps'; # Just append the eps ext.
+ my $path= &dirname($eps_f);
+ &File::Path::mkpath($path,0,0777);
+ $not_eps =~ s/^\s+//;
+ $not_eps =~ s/\s+$//;
+ $not_eps =~ s/ /\\ /g;
+ if ($advanced_role) {
+ my $prettyname=$not_eps;
+ $prettyname=~s|/home/([^/]+)/public_html|/priv/$1|;
+ $prettyname=~s|$perlvar{'lonDocRoot'}/|/|;
+ &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state,
+ 'Converting to EPS '.$prettyname);
+ }
+ #
+ # If the file is a PDF, need to use pdftops to convert it to a ps file.
+ # otherwise use imagemagik:
+ #
+ if($not_eps =~/\.(pdf|PDF)$/) {
+
+ #
+ # For whatever reason, pure postscript conversions have to be
+ # in the same dir as the base file:
+ #
+ $eps_f = &basename($eps_f);
+ $eps_f = $perlvar{'lonPrtDir'}.'/'.$eps_f;
+
+ &debug("Converting pdf $not_eps to postscript: $eps_f");
+ system("pdftops $not_eps $eps_f");
+ } else {
+ system("convert $not_eps $eps_f");
+ }
+
+ if (not -e $eps_f) {
+ # converting an animated gif creates either:
+ # anim.gif.eps.0
+ # or
+ # anim.gif-0.eps
+ for (my $i=0;$i<10000;$i++) {
+ if (-e $eps_f.'.'.$i) {
+ rename($eps_f.'.'.$i, $eps_f);
+ last;
+ }
+ my $anim_eps = $eps_f;
+ $anim_eps =~ s/(\.[^.]*)\.eps$/$1-$i\.eps/i;
+ if (-e $anim_eps) {
+ rename($anim_eps, $eps_f);
+ last;
+ }
+ }
+ }
+
+ # imagemagick 6.2.0-6.2.7 fails to properly handle
+ # convert anim.gif anim.gif.eps
+ # it creates anim.eps instead.
+ if (not -e $eps_f) {
+ my $eps_f2 = $eps_f;
+ $eps_f2 =~ s/\.[^.]*\.eps$/\.eps/i;
+ if(-e $eps_f2) {
+ rename($eps_f2,$eps_f);
+ }
+ }
+ }
+
+}
+#
+# Analyze a LaTeX logfile producing appropriate output on error and
+# returning a boolean to let the caller know if, in our opinion, it's
+# worth continuing on to produce the PDF file.
+#
+# Parameters:
+# logfilename - Name of the logfile.
+# texfile - Name of the LaTeX file that was being processed.
+# advanced_role - True if the user is privileged with respect to the printout
+# (e.g. is the course coordinator or some such thing).
+# Returns:
+# 1 - Caller is advised to continue to create the PDF.
+# 0 - Caller need not bother creating the PDF.
+# Side Effects:
+# Messages are printed to describe any errors that have been encountered.
+# NOTE:
+# The current policy is to assume that if LaTeX decided to insert some text
+# it has salvaged the resource and the resource can be printed.. in that case
+# a message is emitted from this sub.
+#
+sub analyze_logfile {
+ my ($logfilename, $texfile, $advanced_role) = @_;
+
+ my $temporary_file=IO::File->new($logfilename) || die "Couldn't open log file $logfilename for reading: $!\n";
+ my @content_of_file = <$temporary_file>;
+ close $temporary_file;
+ my $body_log_file = join(' ',@content_of_file);
+ $logfilename =~ s/\.log$/\.html/;
+ $temporary_file = IO::File->new('>'.$logfilename);
+ print $temporary_file 'LOGFILE'.$body_log_file.'
'."\n";
+ if ($body_log_file=~m/!\s+Emergency stop/) {
+ my $whereitbegins = rindex $body_log_file,'STAMPOFPASSEDRESOURCESTART';
+ my $whereitends = rindex $body_log_file,'STAMPOFPASSEDRESOURCEEND';
+ my $badresource;
+ my $badtext;
+ if ($whereitbegins!=-1 and $whereitends!=-1) {
+ $badtext = substr($body_log_file,$whereitbegins+26, $whereitends-$whereitbegins-26);
+ $whereitbegins = rindex $badtext,'located in';
+ if ($whereitbegins != -1) {
+
+ $badresource = substr($badtext, $whereitbegins+27,
+ length($badtext) - $whereitbegins - 48);
+ # print "
failing resourcename: $badresource
";
+ }
+ }
+
+ # Guys with privileged roles get a more detailed error output:
+
+ if ($advanced_role) {
+ #LaTeX failed to parse tex file
+ print "".&mt('LaTeX could not successfully parse your TeX file.')."
";
+ print &mt('It probably has errors in it.')."
";
+ if ($badtext) {
+ print &mt('With very high probability this error occured in [_1].',$badtext)
+ ."
";
+ }
+ print &mt('Here are the error messages in the LaTeX log file:')
+ ."
";
+
+ my $sygnal = 0;
+ for (my $i=0;$i<=$#content_of_file;$i++) {
+ if ($content_of_file[$i]=~m/^Runaway argument?/ or $content_of_file[$i]=~m/^!/) {
+ $sygnal = 1;
+ }
+ if ($content_of_file[$i]=~m/Here is how much of/) {
+ $sygnal = 0;
+ }
+ if ($sygnal) {
+ print "$content_of_file[$i]";
+ }
+ }
+ print "\n";
+ # print "
Advanced role
";
+ $logfilename=~s{^\Q$perlvar{'lonPrtDir'}\E}{/prtspool};
+ print ""
+ .&mt('The link to [_1]Your log file[_2]','','')
+ ."\n";
+ #link to original LaTeX file
+ my $tex_temporary_file=IO::File->new($texfile) || die "Couldn't open tex file $texfile for reading: $!\n";
+ my @tex_content_of_file = <$tex_temporary_file>;
+ close $tex_temporary_file;
+ my $body_tex_file = join(' ',@tex_content_of_file);
+ $texfile =~ s/\.tex$/aaaaa\.html/;
+ $tex_temporary_file = IO::File->new('>'.$texfile);
+ print $tex_temporary_file 'LOGFILE'.$body_tex_file.'
'."\n";
+ print "
";
+ $texfile=~s{^\Q$perlvar{'lonPrtDir'}\E}{/prtspool};
+ print ""
+ .&mt('The link to [_1]Your original LaTeX file[_2]','','')
+ ."
\n";
+ my $help_text = &Apache::loncommon::help_open_topic("Print_Resource", &mt('Help on printing'));
+ print ("$help_text");
+
+ # Students on the other hand get a minimal error message, since they won't
+ # be able to correct the error message. A message is sent to the
+ # instructor:
+
+ } else { # Student role...
+ # at this point:
+ # $body_log_file - contains the log file.
+ # $name_file - is the name of the LaTeX file.
+ # $identifier - is the unique LaTeX identifier.l
+
+ print '';
+ if ($badtext) {
+ print &mt('There are errors in [_1].',$badtext);
+ } else {
+ print &mt('There are errors.');
+ }
+ print '
'
+ .&mt('These errors prevent this resource from printing correctly.');
+
+ my $tex_handle = IO::File->new($texfile);
+ my @tex_contents = <$tex_handle>;
+ &send_error_mail($identifier, $badresource, $body_log_file, \@tex_contents);
+ print ""
+ .&mt('A message has been sent to the instructor describing this failure.')
+ ."
";
+ my $help_text = &Apache::loncommon::help_open_topic("Print_Resource", &mt('Help on printing'));
+ print ("$help_text");
+
+ }
+
+ # Either way, an emergency stop does not allow us to continue so:
+
+ return 0;
+
+ # The branch of code below is taken if it appears that
+ # there was no emergency stop but LaTeX had to correct the
+ # input file to run.
+ # In that case we need to provide error feedback, as the correction >may< not be
+ # sufficient, we can let the game continue as there's a dvi file to process.
+
+ } elsif ($body_log_file=~m//) {
+ my $whereitbegins = index $body_log_file,'';
+ print &mt('You are running LaTeX in [_1]batch mode[_2].','','');
+ while ($whereitbegins != -1) {
+ my $tempobegin=$whereitbegins;
+ $whereitbegins = rindex $body_log_file,'STAMPOFPASSEDRESOURCESTART',$whereitbegins;
+ my $whereitends = index $body_log_file,'STAMPOFPASSEDRESOURCEEND',$whereitbegins;
+ print "
"
+ .&mt('It has found an error in [_1][_2]and corrected it.',substr($body_log_file,$whereitbegins+26,$whereitends-$whereitbegins-26),"
")."\n";
+ print &mt('Usually this correction is valid but you probably need to check the indicated resource one more time and implement neccessary corrections by yourself.')."\n";
+ $whereitbegins = index $body_log_file,'',$tempobegin+10;
+ }
+
+ if ($advanced_role) {
+ print "
";
+ $logfilename=~s{^\Q$perlvar{'lonPrtDir'}\E}{/prtspool};
+ print ""
+ .&mt('The link to [_1]Your log file[_2]'
+ ,'','')
+ ."\n";
+ #link to original LaTeX file
+ my $tex_temporary_file=IO::File->new($texfile) || die "Couldn't open tex file $texfile for reading: $!\n";
+ my @tex_content_of_file = <$tex_temporary_file>;
+ close $tex_temporary_file;
+ my $body_tex_file = join(' ',@tex_content_of_file);
+ $texfile =~ s/\.tex$/aaaaa\.html/;
+ $tex_temporary_file = IO::File->new('>'.$texfile);
+ print $tex_temporary_file 'LOGFILE'.$body_tex_file.'
'."\n";
+ print "
";
+ $texfile=~s{^\Q$perlvar{'lonPrtDir'}\E}{/prtspool};
+ print ""
+ .&mt('The link to [_1]Your original LaTeX file[_2]','','');
+ print "\n";
+ }
+ return 1;
+ }
+ return 1; # NO log file issues at all.
+}