Ability to use Mathjax for TeX rendering

1 files changed, 37 insertions, 28 deletions

diff --git a/backup/moodle2/backup_qtype_algebra_plugin.class.php b/backup/moodle2/backup_qtype_algebra_plugin.class.php
index 9e08467..e55e1e0 100644
--- a/backup/moodle2/backup_qtype_algebra_plugin.class.php
+++ b/backup/moodle2/backup_qtype_algebra_plugin.class.php
@@ -1,16 +1,25 @@
 <?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle 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.
+//
+// Moodle 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.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
 
 /**
- * Moodle algebra question type class.
- *
- * @copyright &copy; 2010 Hon Wai, Lau
- * @author Hon Wai, Lau <lau65536@gmail.com>
- * @license http://www.gnu.org/copyleft/gpl.html GNU Public License version 3
- * @package questionbank
- * @subpackage questiontypes
- * @copyright  2010 onwards Eloy Lafuente (stronk7) {@link http://stronk7.com}
+ * @package    qtype_algebra
+ * @copyright  Roger Moore <rwmoore@ualberta.ca>
  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
+
 defined('MOODLE_INTERNAL') || die();
 
 /**
@@ -23,40 +32,40 @@ class backup_qtype_algebra_plugin extends backup_qtype_plugin {
      */
     protected function define_question_plugin_structure() {
 
-        // Define the virtual plugin element with the condition to fulfill
+        // Define the virtual plugin element with the condition to fulfill.
         $plugin = $this->get_plugin_element(null, '../../qtype', 'algebra');
 
-        // Create one standard named plugin element (the visible container)
+        // Create one standard named plugin element (the visible container).
         $pluginwrapper = new backup_nested_element($this->get_recommended_name());
 
-        // connect the visible container ASAP
+        // Connect the visible container ASAP.
         $plugin->add_child($pluginwrapper);
-		
-		// This qtype uses standard question_answers, add them here
-        // to the tree before any other information that will use them
+
+        // This qtype uses standard question_answers, add them here
+        // to the tree before any other information that will use them.
         $this->add_question_question_answers($pluginwrapper);
 
-        // Now create the qtype own structures
-		
-		$algebravariables = new backup_nested_element('algebra_variables');
-		
-		$algebravariable = new backup_nested_element('algebra_variable', array('id'), array(
+        // Now create the qtype own structures.
+
+        $algebravariables = new backup_nested_element('algebra_variables');
+
+        $algebravariable = new backup_nested_element('algebra_variable', array('id'), array(
             'name', 'min', 'max'));
-			
-		$algebra = new backup_nested_element('algebra', array('id'), array(
+
+        $algebra = new backup_nested_element('algebra', array('id'), array(
             'compareby', 'nchecks', 'tolerance',
             'disallow', 'allowedfuncs', 'answerprefix'));
 
-        // Now the own qtype tree
-		$pluginwrapper->add_child($algebravariables);
+        // Now the own qtype tree.
+        $pluginwrapper->add_child($algebravariables);
         $algebravariables->add_child($algebravariable);
-		$pluginwrapper->add_child($algebra);
+        $pluginwrapper->add_child($algebra);
 
-        // set source to populate the data
-        $algebra->set_source_table('question_algebra', array('questionid' => backup::VAR_PARENTID));
-		$algebravariable->set_source_table('question_algebra_variables', array('question' => backup::VAR_PARENTID));
+        // Set source to populate the data.
+        $algebra->set_source_table('qtype_algebra', array('questionid' => backup::VAR_PARENTID));
+        $algebravariable->set_source_table('qtype_algebra_variables', array('question' => backup::VAR_PARENTID));
 
-        // don't need to annotate ids nor files
+        // Don't need to annotate ids nor files.
 
         return $plugin;
     }