[Aimmath-commit] moodle/mod/math_assignment/moodletex index.php,NONE,1.1

[<gus...@us...>]

Update of /cvsroot/aimmath/moodle/mod/math_assignment/moodletex
In directory sc8-pr-cvs1:/tmp/cvs-serv7888/mod/math_assignment/moodletex

Added Files:
	index.php 
Log Message:


--- NEW FILE: index.php ---
<?PHP  
    // Generate pdf file from latex
    // required parameter tempfile should be the name of the latex file
    // optional parameter printcopies should be present only if problem sheets should be
    //   sent to the printer and is then set to the number of copies required.
    
    if (!$tempfile = $_GET['tempfile']) {
        echo "Filename is missing";
        die;
    }
    
    $texcommand = 'pdflatex';
    
    if (isset($_GET['printcopies'])) {
        $printcopies = $_GET['printcopies'];
        if ($printcopies < 1 or $printcopies > 200) {
            error("You can not print $printcopies copies");
        }
        for ($i = 1; $i <= $printcopies; $i++) {
            // reset time limit for each sheet
            set_time_limit(10);
//            $errlog = shell_exec("cd /home/gustav/public_html/moodletex; $texcommand $tempfile$i");
            $errlog = shell_exec("$texcommand $tempfile$i");
            if (!file_exists("$tempfile$i.pdf")) {
                echo "There was a problem while compiling the tex source!<br>
                    pdflatex wrote the following log:<br><br>
                    <pre>$errlog</pre>";
                die;
            }
            // Now we should send the pdf file through ghostview and on to the printer
            
            @unlink("$tempfile$i.tex");
            @unlink("$tempfile$i.aux");
            @unlink("$tempfile$i.log");
        }
        echo "$printcopies pdf sheets have been produced";
        die;  
    }     

    if (!file_exists("$tempfile.tex")) {
        echo "Sorry, I can't produce the pdf output. The specified file does not exist.";
        die;
    }
    
    /// Now run the tex file through pdflatex
//    $errlog = shell_exec("cd /home/gustav/public_html/moodletex; $texcommand $tempfile");
    $errlog = shell_exec("$texcommand $tempfile");

    if (!file_exists("$tempfile.pdf")) {
        echo "There was a problem while compiling the tex source!<br>
            pdflatex wrote the following log:<br><br>
            <pre>$errlog</pre>";
        die;
    }
   
    // delete temporary files
    @unlink("$tempfile.tex");
    @unlink("$tempfile.aux");
    @unlink("$tempfile.log");
    @unlink("$tempfile.mog");
    if (isset($images)) {
        $i = 1;
        while ($i <= $images) {
            @unlink("$tempfile$i.jpg");
            $i++;
        }
    }
    
    // Now redirect browser to the new pdf file.
    if ($texmachine == "remote") {
        $url = "http://manor.york.ac.uk/~gustav/moodletex/$tempfile.pdf";
    } else {
        $url = "$tempfile.pdf";
    }
    echo "<meta http-equiv=\"refresh\" content=\"0; url=$url\" />";

?>