MDL-10415:

Aiken format returns/

question/format/aiken/format.php

@@ -0,0 +1,85 @@
+<?php  // $Id$ 
+
+////////////////////////////////////////////////////////////////////////////
+/// AIKEN FORMAT
+///
+/// This Moodle class provides all functions necessary to import and export 
+/// one-correct-answer multiple choice questions in this format:
+///
+///  Question text
+///  A) Choice #1
+///  B) Choice #2
+///  C) Choice #3
+///  D) Choice #4
+///  ANSWER: B
+///    (blank line next not necessary since "AN" at the beginning of a line 
+///     triggers the question input and causes input to start all over.
+///
+///Only ONE correct answer is allowed with no feedback responses.
+///
+///Be sure to reword "All of the above" type questions as "All of these" (etc.) so that choices can
+///  be randomized
+///
+////////////////////////////////////////////////////////////////////////////
+
+class qformat_aiken extends qformat_default {
+
+  function provide_import() {
+    return true;
+  }
+
+    function readquestions($lines){
+        $questions = array();
+        $question = $this->defaultquestion();
+        $endchar = chr(13); 
+        foreach ($lines as $line) {
+            $stp = strpos($line,$endchar,0);
+            $newlines = explode($endchar,$line);
+            $foundQ = 0;
+            for ($i=0; $i < count($newlines);$i++){
+                $nowline = addslashes($newlines[$i]);
+                ///Go through the array and build an object called $question
+                ///When done, add $question to $questions
+                if (strlen($nowline)< 2) {
+                    continue;
+                }
+                //                This will show everyline when file is being processed
+                //                print("$nowline<br />");
+                $leader = substr(ltrim($nowline),0,2);
+                if (strpos(".A)B)C)D)E)F)G)H)I)J)A.B.C.D.E.F.G.H.I.J.",$leader)>0){
+                    //trim off the label and space
+                    $question->answer[] = substr($nowline,3);
+                    $question->fraction[] = 0;
+                    $question->feedback[] = '';
+                    continue;
+                }
+                if ($leader == "AN"){
+                    $ans =  trim(strstr($nowline,":"));
+                    $ans = substr($ans,2,1);
+                    //A becomes 0 since array starts from 0
+                    $rightans = ord($ans) - 65;
+                    $question->fraction[$rightans] = 1;
+                    $questions[] = $question;
+                    //clear array for next question set
+                    $question = $this->defaultquestion();
+                    continue;
+                } else {
+                    //Must be the first line since no leader
+                    $question->qtype = MULTICHOICE;
+                    $question->name = addslashes( substr($nowline,0,50) );
+                    $question->questiontext = $nowline;
+                    $question->single = 1;
+                    $question->feedback[] = "";
+                }
+            }
+        }
+        return $questions;
+    }
+
+    function readquestion($lines) {
+        //this is no longer needed but might still be called by default.php
+        return;
+    }
+}
+
+?>