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1040 lines
38 KiB
1040 lines
38 KiB
<?php
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/* For licensing terms, see /license.txt */
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/**
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* Class FillBlanks
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*
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* @author Eric Marguin
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* @author Julio Montoya multiple fill in blank option added
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* @package chamilo.exercise
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**/
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class FillBlanks extends Question
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{
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static $typePicture = 'fill_in_blanks.png';
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static $explanationLangVar = 'FillBlanks';
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const FILL_THE_BLANK_STANDARD = 0;
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const FILL_THE_BLANK_MENU = 1;
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const FILL_THE_BLANK_SEVERAL_ANSWER = 2;
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/**
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* Constructor
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*/
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public function __construct()
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{
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parent::__construct();
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$this->type = FILL_IN_BLANKS;
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$this->isContent = $this->getIsContent();
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}
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/**
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* function which redefines Question::createAnswersForm
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* @param FormValidator $form
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*/
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public function createAnswersForm($form)
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{
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$defaults = array();
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if (!empty($this->id)) {
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$objectAnswer = new Answer($this->id);
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$answer = $objectAnswer->selectAnswer(1);
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$listAnswersInfo = FillBlanks::getAnswerInfo($answer);
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if ($listAnswersInfo["switchable"]) {
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$defaults['multiple_answer'] = 1;
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} else {
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$defaults['multiple_answer'] = 0;
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}
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//take the complete string except after the last '::'
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$defaults['answer'] = $listAnswersInfo["text"];
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$defaults['select_separator'] = $listAnswersInfo["blankseparatornumber"];
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$blanksepartornumber = $listAnswersInfo["blankseparatornumber"];
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} else {
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$defaults['answer'] = get_lang('DefaultTextInBlanks');
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$defaults['select_separator'] = 0;
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$blanksepartornumber = 0;
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}
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$blankSeparatorStart = self::getStartSeparator($blanksepartornumber);
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$blankSeparatorEnd = self::getEndSeparator($blanksepartornumber);
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$setValues = null;
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if (isset($a_weightings) && count($a_weightings) > 0) {
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foreach ($a_weightings as $i => $weighting) {
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$setValues .= 'document.getElementById("weighting['.$i.']").value = "'.$weighting.'";';
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}
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}
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// javascript
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echo '<script>
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var blankSeparatortStart = "'.$blankSeparatorStart.'";
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var blankSeparatortEnd = "'.$blankSeparatorEnd.'";
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var blankSeparatortStartRegexp = getBlankSeparatorRegexp(blankSeparatortStart);
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var blankSeparatortEndRegexp = getBlankSeparatorRegexp(blankSeparatortEnd);
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CKEDITOR.on("instanceCreated", function(e) {
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if (e.editor.name === "answer") {
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e.editor.on("change", updateBlanks);
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}
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});
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var firstTime = true;
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function updateBlanks()
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{
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if (firstTime) {
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var field = document.getElementById("answer");
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var answer = field.value;
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} else {
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var answer = CKEDITOR.instances["answer"].getData();
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}
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// disable the save button, if not blanks have been created
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$("button").attr("disabled", "disabled");
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$("#defineoneblank").show();
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var blanksRegexp = "/"+blankSeparatortStartRegexp+"[^"+blankSeparatortStartRegexp+"]*"+blankSeparatortEndRegexp+"/g";
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var blanks = answer.match(eval(blanksRegexp));
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var fields = "<div class=\"form-group \">";
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fields += "<label class=\"col-sm-2 control-label\">'.get_lang('Weighting').'</label>";
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fields += "<div class=\"col-sm-8\">";
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fields += "<table>";
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fields += "<tr><th style=\"padding:0 20px\">'.get_lang("WordTofind").'</th><th style=\"padding:0 20px\">'.get_lang("QuestionWeighting").'</th><th style=\"padding:0 20px\">'.get_lang("BlankInputSize").'</th></tr>";
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if (blanks != null) {
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for (var i=0 ; i < blanks.length ; i++){
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// remove forbidden characters that causes bugs
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blanks[i] = removeForbiddenChars(blanks[i]);
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// trim blanks between brackets
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blanks[i] = trimBlanksBetweenSeparator(blanks[i], blankSeparatortStart, blankSeparatortEnd);
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// if the word is empty []
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if (blanks[i] == blankSeparatortStartRegexp+blankSeparatortEndRegexp) {
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break;
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}
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// get input size
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var lainputsize = 200;
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if ($("#samplesize\\\["+i+"\\\]").width()) {
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lainputsize = $("#samplesize\\\["+i+"\\\]").width();
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}
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if (document.getElementById("weighting["+i+"]")) {
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var value = document.getElementById("weighting["+i+"]").value;
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} else {
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var value = "10";
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}
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fields += "<tr>";
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fields += "<td>"+blanks[i]+"</td>";
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fields += "<td><input style=\"width:35px\" value=\""+value+"\" type=\"text\" id=\"weighting["+i+"]\" name=\"weighting["+i+"]\" /></td>";
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fields += "<td>";
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fields += "<input type=\"button\" value=\"-\" onclick=\"changeInputSize(-1, "+i+")\">";
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fields += "<input type=\"button\" value=\"+\" onclick=\"changeInputSize(1, "+i+")\">";
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fields += "<input value=\""+blanks[i].substr(1, blanks[i].length - 2)+"\" style=\"width:"+lainputsize+"px\" disabled=disabled id=\"samplesize["+i+"]\"/>";
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fields += "<input type=\"hidden\" id=\"sizeofinput["+i+"]\" name=\"sizeofinput["+i+"]\" value=\""+lainputsize+"\" \"/>";
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fields += "</td>";
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fields += "</tr>";
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// enable the save button
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$("button").removeAttr("disabled");
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$("#defineoneblank").hide();
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}
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}
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document.getElementById("blanks_weighting").innerHTML = fields + "</table></div></div>";
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if (firstTime) {
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firstTime = false;
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';
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if (isset($listAnswersInfo) && count($listAnswersInfo["tabweighting"]) > 0) {
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foreach ($listAnswersInfo["tabweighting"] as $i => $weighting) {
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if (!empty($i)) {
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echo 'document.getElementById("weighting['.$i.']").value = "'.$weighting.'";';
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}
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}
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foreach ($listAnswersInfo["tabinputsize"] as $i => $sizeOfInput) {
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if (!empty($i)) {
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echo 'document.getElementById("sizeofinput['.$i.']").value = "'.$sizeOfInput.'";';
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echo '$("#samplesize\\\['.$i.'\\\]").width('.$sizeOfInput.');';
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}
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}
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}
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echo '}
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}
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window.onload = updateBlanks;
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function getInputSize() {
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var outTabSize = new Array();
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$("input").each(function() {
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if ($(this).attr("id") && $(this).attr("id").match(/samplesize/)) {
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var tabidnum = $(this).attr("id").match(/\d+/);
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var idnum = tabidnum[0];
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var thewidth = $(this).next().attr("value");
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tabInputSize[idnum] = thewidth;
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}
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});
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}
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function changeInputSize(inCoef, inIdNum)
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{
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var currentWidth = $("#samplesize\\\["+inIdNum+"\\\]").width();
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var newWidth = currentWidth + inCoef * 20;
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newWidth = Math.max(20, newWidth);
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newWidth = Math.min(newWidth, 600);
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$("#samplesize\\\["+inIdNum+"\\\]").width(newWidth);
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$("#sizeofinput\\\["+inIdNum+"\\\]").attr("value", newWidth);
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}
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function removeForbiddenChars(inTxt) {
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outTxt = inTxt;
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outTxt = outTxt.replace(/"/g, ""); // remove the char
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outTxt = outTxt.replace(/\x22/g, ""); // remove the char
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outTxt = outTxt.replace(/"/g, ""); // remove the char
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outTxt = outTxt.replace(/\\\\/g, ""); // remove the \ char
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outTxt = outTxt.replace(/ /g, " ");
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outTxt = outTxt.replace(/^ +/, "");
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outTxt = outTxt.replace(/ +$/, "");
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return outTxt;
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}
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function changeBlankSeparator()
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{
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var separatorNumber = $("#select_separator").val();
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var tabSeparator = getSeparatorFromNumber(separatorNumber);
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blankSeparatortStart = tabSeparator[0];
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blankSeparatortEnd = tabSeparator[1];
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blankSeparatortStartRegexp = getBlankSeparatorRegexp(blankSeparatortStart);
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blankSeparatortEndRegexp = getBlankSeparatorRegexp(blankSeparatortEnd);
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updateBlanks();
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}
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// this function is the same than the PHP one
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// if modify it modify the php one escapeForRegexp
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function getBlankSeparatorRegexp(inTxt)
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{
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var tabSpecialChar = new Array(".", "+", "*", "?", "[", "^", "]", "$", "(", ")",
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"{", "}", "=", "!", "<", ">", "|", ":", "-", ")");
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for (var i=0; i < tabSpecialChar.length; i++) {
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if (inTxt == tabSpecialChar[i]) {
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return "\\\"+inTxt;
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}
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}
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return inTxt;
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}
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// this function is the same than the PHP one
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// if modify it modify the php one getAllowedSeparator
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function getSeparatorFromNumber(innumber)
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{
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tabSeparator = new Array();
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tabSeparator[0] = new Array("[", "]");
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tabSeparator[1] = new Array("{", "}");
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tabSeparator[2] = new Array("(", ")");
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tabSeparator[3] = new Array("*", "*");
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tabSeparator[4] = new Array("#", "#");
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tabSeparator[5] = new Array("%", "%");
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tabSeparator[6] = new Array("$", "$");
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return tabSeparator[innumber];
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}
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function trimBlanksBetweenSeparator(inTxt, inSeparatorStart, inSeparatorEnd)
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{
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// blankSeparatortStartRegexp
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// blankSeparatortEndRegexp
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var result = inTxt
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result = result.replace(inSeparatorStart, "");
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result = result.replace(inSeparatorEnd, "");
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result = result.trim();
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return inSeparatorStart+result+inSeparatorEnd;
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}
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</script>';
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// answer
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$form->addElement('label', null, '<br /><br />'.get_lang('TypeTextBelow').', '.get_lang('And').' '.get_lang('UseTagForBlank'));
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$form->addElement(
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'html_editor',
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'answer',
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'<img src="../img/fill_field.png">',
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['id' => 'answer', 'onkeyup' => "javascript: updateBlanks(this);"],
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array('ToolbarSet' => 'TestQuestionDescription')
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);
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$form->addRule('answer',get_lang('GiveText'),'required');
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//added multiple answers
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$form->addElement('checkbox','multiple_answer','', get_lang('FillInBlankSwitchable'));
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$form->addElement(
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'select',
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'select_separator',
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get_lang("SelectFillTheBlankSeparator"),
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self::getAllowedSeparatorForSelect(),
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' id="select_separator" style="width:150px" onchange="changeBlankSeparator()" '
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);
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$form->addElement(
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'label',
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null,
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'<input type="button" onclick="updateBlanks()" value="'.get_lang('RefreshBlanks').'" class="btn btn-default" />'
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);
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$form->addElement('html','<div id="blanks_weighting"></div>');
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global $text;
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// setting the save button here and not in the question class.php
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$form->addElement('html','<div id="defineoneblank" style="color:#D04A66; margin-left:160px">'.get_lang('DefineBlanks').'</div>');
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$form->addButtonSave($text, 'submitQuestion');
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if (!empty($this->id)) {
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$form->setDefaults($defaults);
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} else {
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if ($this->isContent == 1) {
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$form->setDefaults($defaults);
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}
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}
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}
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/**
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* Function which creates the form to create/edit the answers of the question
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* @param FormValidator $form
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*/
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public function processAnswersCreation($form)
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{
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$answer = $form->getSubmitValue('answer');
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// Due the ckeditor transform the elements to their HTML value
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//$answer = api_html_entity_decode($answer, ENT_QUOTES, $charset);
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//$answer = htmlentities(api_utf8_encode($answer));
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// remove the :: eventually written by the user
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$answer = str_replace('::', '', $answer);
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// remove starting and ending space and
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$answer = api_preg_replace("/\xc2\xa0/", " ", $answer);
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// start and end separator
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$blankStartSeparator = self::getStartSeparator($form->getSubmitValue('select_separator'));
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$blankEndSeparator = self::getEndSeparator($form->getSubmitValue('select_separator'));
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$blankStartSeparatorRegexp = self::escapeForRegexp($blankStartSeparator);
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$blankEndSeparatorRegexp = self::escapeForRegexp($blankEndSeparator);
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// remove spaces at the beginning and the end of text in square brackets
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$answer = preg_replace_callback(
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"/".$blankStartSeparatorRegexp."[^]]+".$blankEndSeparatorRegexp."/",
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function ($matches) use ($blankStartSeparator, $blankEndSeparator) {
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$matchingResult = $matches[0];
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$matchingResult = trim($matchingResult, $blankStartSeparator);
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$matchingResult = trim($matchingResult, $blankEndSeparator);
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$matchingResult = trim($matchingResult);
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// remove forbidden chars
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$matchingResult = str_replace("/\\/", "", $matchingResult);
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$matchingResult = str_replace('/"/', "", $matchingResult);
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return $blankStartSeparator.$matchingResult.$blankEndSeparator;
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},
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$answer
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);
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// get the blanks weightings
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$nb = preg_match_all(
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'/'.$blankStartSeparatorRegexp.'[^'.$blankStartSeparatorRegexp.']*'.$blankEndSeparatorRegexp.'/',
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$answer,
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$blanks
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);
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if (isset($_GET['editQuestion'])) {
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$this->weighting = 0;
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}
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/* if we have some [tobefound] in the text
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build the string to save the following in the answers table
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<p>I use a [computer] and a [pen].</p>
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becomes
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<p>I use a [computer] and a [pen].</p>::100,50:100,50@1
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++++++++-------**
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--- -- --- -- -
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A B (C) (D)(E)
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+++++++ : required, weighting of each words
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------- : optional, input width to display, 200 if not present
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** : equal @1 if "Allow answers order switches" has been checked, @ otherwise
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A : weighting for the word [computer]
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B : weighting for the word [pen]
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C : input width for the word [computer]
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D : input width for the word [pen]
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E : equal @1 if "Allow answers order switches" has been checked, @ otherwise
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*/
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if ($nb > 0) {
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$answer .= '::';
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// weighting
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for ($i=0; $i < $nb; ++$i) {
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// enter the weighting of word $i
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$answer .= $form->getSubmitValue('weighting['.$i.']');
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// not the last word, add ","
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if ($i != $nb - 1) {
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$answer .= ",";
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}
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// calculate the global weighting for the question
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$this -> weighting += $form->getSubmitValue('weighting['.$i.']');
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}
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// input width
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$answer .= ":";
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for ($i=0; $i < $nb; ++$i) {
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// enter the width of input for word $i
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$answer .= $form->getSubmitValue('sizeofinput['.$i.']');
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// not the last word, add ","
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if ($i != $nb - 1) {
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$answer .= ",";
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}
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}
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}
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// write the blank separator code number
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// see function getAllowedSeparator
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/*
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0 [...]
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1 {...}
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2 (...)
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3 *...*
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4 #...#
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5 %...%
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6 $...$
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*/
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$answer .= ":".$form->getSubmitValue('select_separator');
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// Allow answers order switches
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$is_multiple = $form -> getSubmitValue('multiple_answer');
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$answer.= '@'.$is_multiple;
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$this->save();
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$objAnswer = new Answer($this->id);
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$objAnswer->createAnswer($answer, 0, '', 0, 1);
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$objAnswer->save();
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}
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/**
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* @param null $feedback_type
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* @param null $counter
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* @param null $score
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* @return null|string
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*/
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public function return_header($feedback_type = null, $counter = null, $score = null)
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{
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$header = parent::return_header($feedback_type, $counter, $score);
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$header .= '<table class="'.$this->question_table_class .'">
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<tr>
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<th>'.get_lang("Answer").'</th>
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</tr>';
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return $header;
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}
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/**
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* @param $separatorStartRegexp
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* @param $separatorEndRegexp
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* @param $correctItemRegexp
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* @param $questionId
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* @param $correctItem
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* @param $attributes
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* @param $answer
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* @param $listAnswersInfo
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* @param $displayForStudent
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* @return string
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*/
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public static function getFillTheBlankHtml(
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$separatorStartRegexp,
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$separatorEndRegexp,
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$correctItemRegexp,
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$questionId,
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$correctItem,
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$attributes,
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$answer,
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$listAnswersInfo,
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$displayForStudent,
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$inBlankNumber
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) {
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$result = "";
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$inTabTeacherSolution = $listAnswersInfo['tabwords'];
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$inTeacherSolution = $inTabTeacherSolution[$inBlankNumber];
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switch (self::getFillTheBlankAnswerType($inTeacherSolution)) {
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case self::FILL_THE_BLANK_MENU:
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$selected = "";
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// the blank menu
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$optionMenu = "";
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// display a menu from answer separated with |
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// if display for student, shuffle the correct answer menu
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$listMenu = self::getFillTheBlankMenuAnswers($inTeacherSolution, $displayForStudent);
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$result .= '<select name="choice['.$questionId.'][]">';
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for ($k=0; $k < count($listMenu); $k++) {
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$selected = "";
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if ($correctItem == $listMenu[$k]) {
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$selected = " selected=selected ";
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}
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// if in teacher view, display the first item by default, which is the right answer
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if ($k==0 && !$displayForStudent) {
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$selected = " selected=selected ";
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}
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$optionMenu .= '<option '.$selected.' value="'.$listMenu[$k].'">'.$listMenu[$k].'</option>';
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}
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if ($selected == "") {
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// no good answer have been found...
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$selected = " selected=selected ";
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}
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$result .= "<option $selected value=''>--</option>";
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$result .= $optionMenu;
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$result .= '</select>';
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break;
|
|
case self::FILL_THE_BLANK_SEVERAL_ANSWER:
|
|
//no break
|
|
case self::FILL_THE_BLANK_STANDARD:
|
|
default:
|
|
$result = Display::input('text', "choice[$questionId][]", $correctItem, $attributes);
|
|
break;
|
|
}
|
|
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* Return an array with the different choices available
|
|
* when the answers between bracket show as a menu
|
|
* @param string $correctAnswer
|
|
* @param bool $displayForStudent true if we want to shuffle the choices of the menu for students
|
|
*
|
|
* @return array
|
|
*/
|
|
public static function getFillTheBlankMenuAnswers($correctAnswer, $displayForStudent)
|
|
{
|
|
// if $inDisplayForStudent, then shuffle the result array
|
|
$listChoises = api_preg_split("/\|/", $correctAnswer);
|
|
if ($displayForStudent) {
|
|
shuffle($listChoises);
|
|
}
|
|
|
|
return $listChoises;
|
|
}
|
|
|
|
/**
|
|
* Return the array index of the student answer
|
|
* @param string $correctAnswer the menu Choice1|Choice2|Choice3
|
|
* @param string $studentAnswer the student answer must be Choice1 or Choice2 or Choice3
|
|
*
|
|
* @return int in the example 0 1 or 2 depending of the choice of the student
|
|
*/
|
|
public static function getFillTheBlankMenuAnswerNum($correctAnswer, $studentAnswer)
|
|
{
|
|
$listChoices = self::getFillTheBlankMenuAnswers($correctAnswer, false);
|
|
foreach ($listChoices as $num => $value) {
|
|
if ($value == $studentAnswer) {
|
|
return $num;
|
|
}
|
|
}
|
|
|
|
// should not happened, because student choose the answer in a menu of possible answers
|
|
return -1;
|
|
}
|
|
|
|
|
|
/**
|
|
* Return the possible answer if the answer between brackets is a multiple choice menu
|
|
* @param string $correctAnswer
|
|
*
|
|
* @return array
|
|
*/
|
|
public static function getFillTheBlankSeveralAnswers($correctAnswer)
|
|
{
|
|
// is answer||Answer||response||Response , mean answer or Answer ...
|
|
$listSeveral = api_preg_split("/\|\|/", $correctAnswer);
|
|
|
|
return $listSeveral;
|
|
}
|
|
|
|
/**
|
|
* Return true if student answer is right according to the correctAnswer
|
|
* it is not as simple as equality, because of the type of Fill The Blank question
|
|
* eg : studentAnswer = 'Un' and correctAnswer = 'Un||1||un'
|
|
* @param string $studentAnswer [studentanswer] of the info array of the answer field
|
|
* @param string $correctAnswer [tabwords] of the info array of the answer field
|
|
*
|
|
* @return bool
|
|
*/
|
|
public static function isGoodStudentAnswer($studentAnswer, $correctAnswer)
|
|
{
|
|
switch (self::getFillTheBlankAnswerType($correctAnswer)) {
|
|
case self::FILL_THE_BLANK_MENU:
|
|
$listMenu = self::getFillTheBlankMenuAnswers($correctAnswer, false);
|
|
$result = $listMenu[0] == $studentAnswer;
|
|
break;
|
|
case self::FILL_THE_BLANK_SEVERAL_ANSWER:
|
|
// the answer must be one of the choice made
|
|
$listSeveral = self::getFillTheBlankSeveralAnswers($correctAnswer);
|
|
$result = in_array($studentAnswer, $listSeveral);
|
|
break;
|
|
case self::FILL_THE_BLANK_STANDARD:
|
|
default:
|
|
$result = $studentAnswer == $correctAnswer;
|
|
break;
|
|
}
|
|
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* @param string $correctAnswer
|
|
*
|
|
* @return int
|
|
*/
|
|
public static function getFillTheBlankAnswerType($correctAnswer)
|
|
{
|
|
if (api_strpos($correctAnswer, "|") && !api_strpos($correctAnswer, "||")) {
|
|
return self::FILL_THE_BLANK_MENU;
|
|
} elseif (api_strpos($correctAnswer, "||")) {
|
|
return self::FILL_THE_BLANK_SEVERAL_ANSWER;
|
|
} else {
|
|
return self::FILL_THE_BLANK_STANDARD;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Return information about the answer
|
|
* @param string $userAnswer the text of the answer of the question
|
|
* @param bool $isStudentAnswer true if it's a student answer false the empty question model
|
|
*
|
|
* @return array of information about the answer
|
|
*/
|
|
public static function getAnswerInfo($userAnswer = "", $isStudentAnswer = false)
|
|
{
|
|
$listAnswerResults = array();
|
|
$listAnswerResults['text'] = "";
|
|
$listAnswerResults['wordsCount'] = 0;
|
|
$listAnswerResults['tabwordsbracket'] = array();
|
|
$listAnswerResults['tabwords'] = array();
|
|
$listAnswerResults['tabweighting'] = array();
|
|
$listAnswerResults['tabinputsize'] = array();
|
|
$listAnswerResults['switchable'] = "";
|
|
$listAnswerResults['studentanswer'] = array();
|
|
$listAnswerResults['studentscore'] = array();
|
|
$listAnswerResults['blankseparatornumber'] = 0;
|
|
$listDoubleColon = array();
|
|
|
|
api_preg_match("/(.*)::(.*)$/s", $userAnswer, $listResult);
|
|
|
|
if (count($listResult) < 2) {
|
|
$listDoubleColon[] = '';
|
|
$listDoubleColon[] = '';
|
|
} else {
|
|
$listDoubleColon[] = $listResult[1];
|
|
$listDoubleColon[] = $listResult[2];
|
|
}
|
|
|
|
$listAnswerResults['systemstring'] = $listDoubleColon[1];
|
|
|
|
// make sure we only take the last bit to find special marks
|
|
$listArobaseSplit = explode('@', $listDoubleColon[1]);
|
|
|
|
if (count($listArobaseSplit) < 2) {
|
|
$listArobaseSplit[1] = "";
|
|
}
|
|
|
|
// take the complete string except after the last '::'
|
|
$listDetails = explode(":", $listArobaseSplit[0]);
|
|
|
|
// < number of item after the ::[score]:[size]:[separator_id]@ , here there are 3
|
|
if (count($listDetails) < 3) {
|
|
$listWeightings = explode(',', $listDetails[0]);
|
|
$listSizeOfInput = array();
|
|
for ($i=0; $i < count($listWeightings); $i++) {
|
|
$listSizeOfInput[] = 200;
|
|
}
|
|
$blankSeparatorNumber = 0; // 0 is [...]
|
|
} else {
|
|
$listWeightings = explode(',', $listDetails[0]);
|
|
$listSizeOfInput = explode(',', $listDetails[1]);
|
|
$blankSeparatorNumber = $listDetails[2];
|
|
}
|
|
|
|
$listAnswerResults['text'] = $listDoubleColon[0];
|
|
$listAnswerResults['tabweighting'] = $listWeightings;
|
|
$listAnswerResults['tabinputsize'] = $listSizeOfInput;
|
|
$listAnswerResults['switchable'] = $listArobaseSplit[1];
|
|
$listAnswerResults['blankseparatorstart'] = self::getStartSeparator($blankSeparatorNumber);
|
|
$listAnswerResults['blankseparatorend'] = self::getEndSeparator($blankSeparatorNumber);
|
|
$listAnswerResults['blankseparatornumber'] = $blankSeparatorNumber;
|
|
|
|
$blankCharStart = self::getStartSeparator($blankSeparatorNumber);
|
|
$blankCharEnd = self::getEndSeparator($blankSeparatorNumber);
|
|
$blankCharStartForRegexp = self::escapeForRegexp($blankCharStart);
|
|
$blankCharEndForRegexp = self::escapeForRegexp($blankCharEnd);
|
|
|
|
// get all blanks words
|
|
$listAnswerResults['wordsCount'] = api_preg_match_all(
|
|
'/'.$blankCharStartForRegexp.'[^'.$blankCharEndForRegexp.']*'.$blankCharEndForRegexp.'/',
|
|
$listDoubleColon[0],
|
|
$listWords
|
|
);
|
|
|
|
if ($listAnswerResults['wordsCount'] > 0) {
|
|
$listAnswerResults['tabwordsbracket'] = $listWords[0];
|
|
// remove [ and ] in string
|
|
array_walk(
|
|
$listWords[0],
|
|
function (&$value, $key, $tabBlankChar) {
|
|
$trimChars = "";
|
|
for ($i=0; $i < count($tabBlankChar); $i++) {
|
|
$trimChars .= $tabBlankChar[$i];
|
|
}
|
|
$value = trim($value, $trimChars);
|
|
},
|
|
array($blankCharStart, $blankCharEnd)
|
|
);
|
|
$listAnswerResults['tabwords'] = $listWords[0];
|
|
}
|
|
|
|
// get all common words
|
|
$commonWords = api_preg_replace(
|
|
'/'.$blankCharStartForRegexp.'[^'.$blankCharEndForRegexp.']*'.$blankCharEndForRegexp.'/',
|
|
"::",
|
|
$listDoubleColon[0]
|
|
);
|
|
|
|
// if student answer, the second [] is the student answer,
|
|
// the third is if student scored or not
|
|
$listBrackets = array();
|
|
$listWords = array();
|
|
|
|
if ($isStudentAnswer) {
|
|
for ($i=0; $i < count($listAnswerResults['tabwords']); $i++) {
|
|
$listBrackets[] = $listAnswerResults['tabwordsbracket'][$i];
|
|
$listWords[] = $listAnswerResults['tabwords'][$i];
|
|
if ($i+1 < count($listAnswerResults['tabwords'])) {
|
|
// should always be
|
|
$i++;
|
|
}
|
|
$listAnswerResults['studentanswer'][] = $listAnswerResults['tabwords'][$i];
|
|
if ($i+1 < count($listAnswerResults['tabwords'])) {
|
|
// should always be
|
|
$i++;
|
|
}
|
|
$listAnswerResults['studentscore'][] = $listAnswerResults['tabwords'][$i];
|
|
}
|
|
$listAnswerResults['tabwords'] = $listWords;
|
|
$listAnswerResults['tabwordsbracket'] = $listBrackets;
|
|
|
|
// if we are in student view, we've got 3 times :::::: for common words
|
|
$commonWords = api_preg_replace("/::::::/", "::", $commonWords);
|
|
}
|
|
|
|
$listAnswerResults['commonwords'] = explode("::", $commonWords);
|
|
|
|
return $listAnswerResults;
|
|
}
|
|
|
|
/**
|
|
* Replace the occurrence of blank word with [correct answer][student answer][answer is correct]
|
|
* @param array $listWithStudentAnswer
|
|
*
|
|
* @return string
|
|
*/
|
|
public static function getAnswerInStudentAttempt($listWithStudentAnswer)
|
|
{
|
|
$separatorStart = $listWithStudentAnswer['blankseparatorstart'];
|
|
$separatorEnd = $listWithStudentAnswer['blankseparatorend'];
|
|
// lets rebuild the sentence with [correct answer][student answer][answer is correct]
|
|
$result = "";
|
|
for ($i=0; $i < count($listWithStudentAnswer['commonwords']) - 1; $i++) {
|
|
$result .= $listWithStudentAnswer['commonwords'][$i];
|
|
$result .= $listWithStudentAnswer['tabwordsbracket'][$i];
|
|
$result .= $separatorStart.$listWithStudentAnswer['studentanswer'][$i].$separatorEnd;
|
|
$result .= $separatorStart.$listWithStudentAnswer['studentscore'][$i].$separatorEnd;
|
|
}
|
|
$result .= $listWithStudentAnswer['commonwords'][$i];
|
|
$result .= "::";
|
|
// add the system string
|
|
$result .= $listWithStudentAnswer['systemstring'];
|
|
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* This function is the same than the js one above getBlankSeparatorRegexp
|
|
* @param string $inChar
|
|
*
|
|
* @return string
|
|
*/
|
|
public static function escapeForRegexp($inChar)
|
|
{
|
|
$listChars = [
|
|
".",
|
|
"+",
|
|
"*",
|
|
"?",
|
|
"[",
|
|
"^",
|
|
"]",
|
|
"$",
|
|
"(",
|
|
")",
|
|
"{",
|
|
"}",
|
|
"=",
|
|
"!",
|
|
">",
|
|
"|",
|
|
":",
|
|
"-",
|
|
")",
|
|
];
|
|
|
|
if (in_array($inChar, $listChars)) {
|
|
return "\\".$inChar;
|
|
} else {
|
|
return $inChar;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* return $text protected for use in regexp
|
|
* @param string $text
|
|
*
|
|
* @return mixed
|
|
*/
|
|
public static function getRegexpProtected($text)
|
|
{
|
|
$listRegexpCharacters = [
|
|
"/",
|
|
".",
|
|
"+",
|
|
"*",
|
|
"?",
|
|
"[",
|
|
"^",
|
|
"]",
|
|
"$",
|
|
"(",
|
|
")",
|
|
"{",
|
|
"}",
|
|
"=",
|
|
"!",
|
|
">",
|
|
"|",
|
|
":",
|
|
"-",
|
|
")",
|
|
];
|
|
$result = $text;
|
|
for ($i=0; $i < count($listRegexpCharacters); $i++) {
|
|
$result = str_replace($listRegexpCharacters[$i], "\\".$listRegexpCharacters[$i], $result);
|
|
}
|
|
|
|
return $result;
|
|
}
|
|
|
|
|
|
/**
|
|
* This function must be the same than the js one getSeparatorFromNumber above
|
|
* @return array
|
|
*/
|
|
public static function getAllowedSeparator()
|
|
{
|
|
$fillBlanksAllowedSeparator = array(
|
|
array('[', ']'),
|
|
array('{', '}'),
|
|
array('(', ')'),
|
|
array('*', '*'),
|
|
array('#', '#'),
|
|
array('%', '%'),
|
|
array('$', '$'),
|
|
);
|
|
|
|
return $fillBlanksAllowedSeparator;
|
|
}
|
|
|
|
/**
|
|
* return the start separator for answer
|
|
* @param string $number
|
|
*
|
|
* @return mixed
|
|
*/
|
|
public static function getStartSeparator($number)
|
|
{
|
|
$listSeparators = self::getAllowedSeparator();
|
|
|
|
return $listSeparators[$number][0];
|
|
}
|
|
|
|
/**
|
|
* return the end separator for answer
|
|
* @param string $number
|
|
*
|
|
* @return mixed
|
|
*/
|
|
public static function getEndSeparator($number)
|
|
{
|
|
$listSeparators = self::getAllowedSeparator();
|
|
|
|
return $listSeparators[$number][1];
|
|
}
|
|
|
|
/**
|
|
* Return as a description text, array of allowed separators for question
|
|
* eg: array("[...]", "(...)")
|
|
* @return array
|
|
*/
|
|
public static function getAllowedSeparatorForSelect()
|
|
{
|
|
$listResults = array();
|
|
$fillBlanksAllowedSeparator = self::getAllowedSeparator();
|
|
for ($i=0; $i < count($fillBlanksAllowedSeparator); $i++) {
|
|
$listResults[] = $fillBlanksAllowedSeparator[$i][0]."...".$fillBlanksAllowedSeparator[$i][1];
|
|
}
|
|
|
|
return $listResults;
|
|
}
|
|
|
|
/**
|
|
* return the code number of the separator for the question
|
|
* @param string $startSeparator
|
|
* @param string $endSeparator
|
|
*
|
|
* @return int
|
|
*/
|
|
public function getDefaultSeparatorNumber($startSeparator, $endSeparator)
|
|
{
|
|
$listSeparators = self::getAllowedSeparator();
|
|
$result = 0;
|
|
for ($i=0; $i < count($listSeparators); $i++) {
|
|
if ($listSeparators[$i][0] == $startSeparator &&
|
|
$listSeparators[$i][1] == $endSeparator
|
|
) {
|
|
$result = $i;
|
|
}
|
|
}
|
|
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* return the HTML display of the answer
|
|
* @param string $answer
|
|
* @param bool $resultsDisabled
|
|
*
|
|
* @return string
|
|
*/
|
|
public static function getHtmlDisplayForAnswer($answer, $resultsDisabled = false)
|
|
{
|
|
$result = "";
|
|
$listStudentAnswerInfo = self::getAnswerInfo($answer, true);
|
|
|
|
// rebuild the answer with good HTML style
|
|
// this is the student answer, right or wrong
|
|
for ($i=0; $i < count($listStudentAnswerInfo['studentanswer']); $i++) {
|
|
if ($listStudentAnswerInfo['studentscore'][$i] == 1) {
|
|
$listStudentAnswerInfo['studentanswer'][$i] = self::getHtmlRightAnswer(
|
|
$listStudentAnswerInfo['studentanswer'][$i],
|
|
$listStudentAnswerInfo['tabwords'][$i],
|
|
$resultsDisabled
|
|
);
|
|
} else {
|
|
$listStudentAnswerInfo['studentanswer'][$i] = self::getHtmlWrongAnswer(
|
|
$listStudentAnswerInfo['studentanswer'][$i],
|
|
$listStudentAnswerInfo['tabwords'][$i],
|
|
$resultsDisabled
|
|
);
|
|
}
|
|
}
|
|
|
|
|
|
// rebuild the sentence with student answer inserted
|
|
for ($i=0; $i < count($listStudentAnswerInfo['commonwords']); $i++) {
|
|
$result .= isset($listStudentAnswerInfo['commonwords'][$i]) ? $listStudentAnswerInfo['commonwords'][$i] : '';
|
|
$result .= isset($listStudentAnswerInfo['studentanswer'][$i]) ? $listStudentAnswerInfo['studentanswer'][$i] : '';
|
|
}
|
|
|
|
// the last common word (should be </p>)
|
|
$result .= isset($listStudentAnswerInfo['commonwords'][$i]) ? $listStudentAnswerInfo['commonwords'][$i] : '';
|
|
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* return the HTML code of answer for correct and wrong answer
|
|
* @param string $answer
|
|
* @param string $correct
|
|
* @param string $right
|
|
* @param bool $resultsDisabled
|
|
*
|
|
* @return string
|
|
*/
|
|
public static function getHtmlAnswer($answer, $correct, $right, $resultsDisabled = false)
|
|
{
|
|
$style = "color: green";
|
|
if (!$right) {
|
|
$style = "color: red; text-decoration: line-through;";
|
|
}
|
|
$type = FillBlanks::getFillTheBlankAnswerType($correct);
|
|
switch ($type) {
|
|
case self::FILL_THE_BLANK_MENU:
|
|
$correctAnswerHtml = "";
|
|
$listPossibleAnswers = FillBlanks::getFillTheBlankMenuAnswers($correct, false);
|
|
$correctAnswerHtml .= "<span style='color: green'>".$listPossibleAnswers[0]."</span>";
|
|
$correctAnswerHtml .= " <span style='font-weight:normal'>(";
|
|
for ($i=1; $i < count($listPossibleAnswers); $i++) {
|
|
$correctAnswerHtml .= $listPossibleAnswers[$i];
|
|
if ($i != count($listPossibleAnswers) - 1) {
|
|
$correctAnswerHtml .= " | ";
|
|
}
|
|
}
|
|
$correctAnswerHtml .= ")</span>";
|
|
break;
|
|
case self::FILL_THE_BLANK_SEVERAL_ANSWER:
|
|
$listCorrects = explode("||", $correct);
|
|
$firstCorrect = $correct;
|
|
if (count($listCorrects) > 0) {
|
|
$firstCorrect = $listCorrects[0];
|
|
}
|
|
$correctAnswerHtml = "<span style='color: green'>".$firstCorrect."</span>";
|
|
break;
|
|
case self::FILL_THE_BLANK_STANDARD:
|
|
default:
|
|
$correctAnswerHtml = "<span style='color: green'>".$correct."</span>";
|
|
}
|
|
|
|
if ($resultsDisabled) {
|
|
$correctAnswerHtml = "<span title='".get_lang("ExerciseWithFeedbackWithoutCorrectionComment")."'> - </span>";
|
|
}
|
|
|
|
$result = "<span style='border:1px solid black; border-radius:5px; padding:2px; font-weight:bold;'>";
|
|
$result .= "<span style='$style'>".$answer."</span>";
|
|
$result .= " <span style='font-size:120%;'>/</span> ";
|
|
$result .= $correctAnswerHtml;
|
|
$result .= "</span>";
|
|
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* return HTML code for correct answer
|
|
* @param string $answer
|
|
* @param string $correct
|
|
* @param bool $resultsDisabled
|
|
*
|
|
* @return string
|
|
*/
|
|
public static function getHtmlRightAnswer($answer, $correct, $resultsDisabled = false)
|
|
{
|
|
return self::getHtmlAnswer($answer, $correct, true, $resultsDisabled);
|
|
}
|
|
|
|
/**
|
|
* return HTML code for wrong answer
|
|
* @param string $answer
|
|
* @param string $correct
|
|
* @param bool $resultsDisabled
|
|
*
|
|
* @return string
|
|
*/
|
|
public static function getHtmlWrongAnswer($answer, $correct, $resultsDisabled = false)
|
|
{
|
|
return self::getHtmlAnswer($answer, $correct, false, $resultsDisabled);
|
|
}
|
|
}
|
|
|