From d6bdc238e8c0d77f28facc3c61a3990e3e7d1f26 Mon Sep 17 00:00:00 2001
From: Stephan Robotta <stephan.robotta@bfh.ch>
Date: Tue, 10 Oct 2023 10:53:45 +0200
Subject: [PATCH] fix jslint error in 4.3 stack

---
 amd/build/ui.min.js     | 2 +-
 amd/build/ui.min.js.map | 2 +-
 amd/src/ui.js           | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/amd/build/ui.min.js b/amd/build/ui.min.js
index 8fc5801..86e99ec 100644
--- a/amd/build/ui.min.js
+++ b/amd/build/ui.min.js
@@ -5,6 +5,6 @@ define("tiny_cloze/ui",["exports","core/modal_events","core/modal_factory","core
    * @module      tiny_cloze/ui
    * @copyright   2023 MoodleDACH
    * @license     http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
-   */Object.defineProperty(_exports,"__esModule",{value:!0}),_exports.resolveSubquestion=_exports.onSubmit=_exports.onInit=_exports.onBeforeGetContent=_exports.displayDialogue=void 0,_modal_events=_interopRequireDefault(_modal_events),_modal_factory=_interopRequireDefault(_modal_factory),_mustache=_interopRequireDefault(_mustache);const isNull=a=>null==a,strdecode=t=>String(t).replace(/\\(#|\}|~)/g,"$1"),strencode=t=>String(t).replace(/(#|\}|~)/g,"\\$1"),indexOfNode=(list,node)=>{for(let i=0;i<list.length;i++)if(list[i]===node)return i;return-1},getUuid=function(){return isNull(crypto.randomUUID)?"ed-cloze-"+Math.floor(1e5*Math.random()).toString():crypto.randomUUID()},getFractionOptions=s=>{let html='<option value="">'+STR.incorrect+'</option><option value="="';return"="===s&&(html+=' selected="selected"'),html+=">"+STR.correct+"</option>",FRACTIONS.forEach((item=>{html+='<option value="'+item.value+'"',item.value.toString()===s&&(html+=' selected="selected"'),html+=">"+item.value+"%</option>"})),html},markerClass="cloze-question-marker",markerSpan='<span contenteditable="false" class="'+markerClass+'" data-mce-contenteditable="false">',reQtype=/\{([0-9]*):(MULTICHOICE(_H|_V|_S|_HS|_VS)?|MULTIRESPONSE(_H|_S|_HS)?|NUMERICAL|SHORTANSWER(_C)?|SAC?|NM|MWC?|M[CR](V|H|VS|HS)?):(.*?)\}/g,CSS={ANSWER:"tiny_cloze_answer",ANSWERS:"tiny_cloze_answers",ADD:"tiny_cloze_add",CANCEL:"tiny_cloze_cancel",DELETE:"tiny_cloze_delete",FEEDBACK:"tiny_cloze_feedback",FRACTION:"tiny_cloze_fraction",LEFT:"tiny_cloze_col0",LOWER:"tiny_cloze_down",RIGHT:"tiny_cloze_col1",MARKS:"tiny_cloze_marks",DUPLICATE:"tiny_cloze_duplicate",RAISE:"tiny_cloze_up",SUBMIT:"tiny_cloze_submit",SUMMARY:"tiny_cloze_summary",TOLERANCE:"tiny_cloze_tolerance",TYPE:"tiny_cloze_qtype"},TEMPLATE={FORM:'<div class="tiny_cloze"><p>{{name}} ({{qtype}})</p><form name="tiny_cloze_form"><div class="row ml-0"><div class="form-group"><label for="{{elementid}}_mark">{{STR.defaultmark}}</label><input id="{{elementid}}_mark" type="text" value="{{marks}}" class="{{CSS.MARKS}} form-control d-inline mx-1" /><a class="{{CSS.ADD}}" title="{{STR.addmoreanswerblanks}}"><img class="icon_smallicon" src="'+M.util.image_url("t/add","core")+'"></a></div></div><div class="{{CSS.ANSWERS}} mb-3"><ol class="pl-3">{{#answerdata}}<li class="mt-3"><div class="row ml-0"><div class="{{CSS.LEFT}} form-group"><label for="{{id}}_answer">{{STR.answer}}</label><input id="{{id}}_answer" type="text" value="{{answer}}" class="{{CSS.ANSWER}} form-control d-inline mx-2" /></div><div class="{{CSS.LEFT}} form-group"><a class="{{CSS.ADD}}" title="{{STR.addmoreanswerblanks}}"><img class="icon_smallicon" src="'+M.util.image_url("t/add","core")+'"></a><a class="{{CSS.DELETE}}" title="{{STR.delete}}"><img class="icon_smallicon" src="'+M.util.image_url("t/delete","core")+'"></a><a class="{{CSS.RAISE}}" title="{{STR.up}}"><img class="icon_smallicon" src="'+M.util.image_url("t/up","core")+'"></a><a class="{{CSS.LOWER}}" title="{{STR.down}}"><img class="icon_smallicon" src="'+M.util.image_url("t/down","core")+'"></a></div></div>{{#numerical}}<div class="row"><div class="{{CSS.RIGHT}} form-group"><label for="{{id}}_tolerance">{{{STR.tolerance}}}</label><input id="{{id}}_tolerance" type="text" value="{{tolerance}}" class="{{CSS.TOLERANCE}} form-control d-inline mx-2" /></div></div>{{/numerical}}<div class="row"><div class="{{CSS.RIGHT}} form-group"><label for="{{id}}_feedback">{{STR.feedback}}</label><input id="{{id}}_feedback" type="text" value="{{feedback}}" class="{{CSS.FEEDBACK}} form-control d-inline mx-2" /></div><div class="{{CSS.RIGHT}} form-group"><label id="{{id}}_grade">{{STR.grade}}</label><select id="{{id}}_grade" class="{{CSS.FRACTION}} custom-select mx-2">{{{fractionOptions}}}</select></div></div></li>{{/answerdata}}</ol></div></form></div>',TYPE:'<div class="tiny_cloze mt-0 mx-2 mb-2"><p>{{STR.chooseqtypetoadd}}</p><form name="tiny_cloze_form"><div class="{{CSS.TYPE}} form-check">{{#types}}<div class="option"><input name="qtype" id="qtype_qtype_{{type}}" value="{{type}}" type="radio" class="form-check-input"><label for="qtype_qtype_{{type}}"><span class="typename">{{type}}</span><span class="{{CSS.SUMMARY}}"><h6>{{name}}</h6><p>{{summary}}</p><ul>{{#options}}<li>{{.}}</li>{{/options}}</ul></span></label></div>{{/types}}</div></form></div>',FOOTER:'<button type="button" class="btn btn-secondary" data-action="cancel">{{cancel}}</button><button type="button" class="btn btn-primary" data-action="save">{{submit}}</button>'},FRACTIONS=[{value:100},{value:50},{value:33.33333},{value:25},{value:20},{value:16.66667},{value:14.28571},{value:12.5},{value:11.11111},{value:10},{value:5},{value:0},{value:-5},{value:-10},{value:-11.11111},{value:-12.5},{value:-14.28571},{value:-16.66667},{value:-20},{value:-25},{value:-33.333},{value:-50},{value:-100}];let STR={};const getQuestionTypes=function(){return[{type:"MULTICHOICE",abbr:["MC"],name:STR.multichoice,summary:STR.summary_multichoice,options:[STR.selectinline,STR.singleyes]},{type:"MULTICHOICE_H",abbr:["MCH"],name:STR.multichoice,summary:STR.summary_multichoice,options:[STR.horizontal,STR.singleyes]},{type:"MULTICHOICE_V",abbr:["MCV"],name:STR.multichoice,summary:STR.summary_multichoice,options:[STR.vertical,STR.singleyes]},{type:"MULTICHOICE_S",abbr:["MCS"],name:STR.multichoice,summary:STR.summary_multichoice,options:[STR.selectinline,STR.shuffle,STR.singleyes]},{type:"MULTICHOICE_HS",abbr:["MCHS"],name:STR.multichoice,summary:STR.summary_multichoice,options:[STR.horizontal,STR.shuffle,STR.singleyes]},{type:"MULTICHOICE_VS",abbr:["MCVS"],name:STR.multichoice,summary:STR.summary_multichoice,options:[STR.vertical,STR.shuffle,STR.singleyes]},{type:"MULTIRESPONSE",abbr:["MR"],name:STR.multiresponse,summary:STR.summary_multichoice,options:[STR.multi_vertical,STR.singleno]},{type:"MULTIRESPONSE_H",abbr:["MRH"],name:STR.multiresponse,summary:STR.summary_multichoice,options:[STR.multi_horizontal,STR.singleno]},{type:"MULTIRESPONSE_S",abbr:["MRS"],name:STR.multiresponse,summary:STR.summary_multichoice,options:[STR.multi_vertical,STR.shuffle,STR.singleno]},{type:"MULTIRESPONSE_HS",abbr:["MRHS"],name:STR.multiresponse,summary:STR.summary_multichoice,options:[STR.multi_horizontal,STR.shuffle,STR.singleno]},{type:"NUMERICAL",abbr:["NM"],name:STR.numerical,summary:STR.summary_numerical},{type:"SHORTANSWER",abbr:["SA","MW"],name:STR.shortanswer,summary:STR.summary_shortanswer,options:[STR.caseno]},{type:"SHORTANSWER_C",abbr:["SAC","MWC"],name:STR.shortanswer,summary:STR.summary_shortanswer,options:[STR.caseyes]}]};let _editor=null,_form=null,_answerdata=[],_qtype=null,_selectedOffset=-1,_marks=1,_modal=null;_exports.onInit=function(ed){_editor=ed,_addMarkers(),(async()=>{const res=await Promise.all([(0,_str.get_string)("answer","question"),(0,_str.get_string)("chooseqtypetoadd","question"),(0,_str.get_string)("defaultmark","question"),(0,_str.get_string)("feedback","question"),(0,_str.get_string)("correct","question"),(0,_str.get_string)("incorrect","question"),(0,_str.get_string)("addmoreanswerblanks","qtype_calculated"),(0,_str.get_string)("delete","core"),(0,_str.get_string)("up","core"),(0,_str.get_string)("down","core"),(0,_str.get_string)("tolerance","qtype_calculated"),(0,_str.get_string)("grade","grades"),(0,_str.get_string)("caseno","mod_quiz"),(0,_str.get_string)("caseyes","mod_quiz"),(0,_str.get_string)("answersingleno","qtype_multichoice"),(0,_str.get_string)("answersingleyes","qtype_multichoice"),(0,_str.get_string)("layoutselectinline","qtype_multianswer"),(0,_str.get_string)("layouthorizontal","qtype_multianswer"),(0,_str.get_string)("layoutvertical","qtype_multianswer"),(0,_str.get_string)("shufflewithin","mod_quiz"),(0,_str.get_string)("layoutmultiple_horizontal","qtype_multianswer"),(0,_str.get_string)("layoutmultiple_vertical","qtype_multianswer"),(0,_str.get_string)("pluginnamesummary","qtype_multichoice"),(0,_str.get_string)("pluginnamesummary","qtype_shortanswer"),(0,_str.get_string)("pluginnamesummary","qtype_numerical"),(0,_str.get_string)("multichoice",_common.component),(0,_str.get_string)("multiresponse",_common.component),(0,_str.get_string)("numerical","mod_quiz"),(0,_str.get_string)("shortanswer","mod_quiz"),(0,_str.get_string)("cancel","core"),(0,_str.get_string)("select",_common.component),(0,_str.get_string)("insert",_common.component),(0,_str.get_string)("pluginname",_common.component)]);["answer","chooseqtypetoadd","defaultmark","feedback","correct","incorrect","addmoreanswerblanks","delete","up","down","tolerance","grade","caseno","caseyes","singleno","singleyes","selectinline","horizontal","vertical","shuffle","multi_horizontal","multi_vertical","summary_multichoice","summary_shortanswer","summary_numerical","multichoice","multiresponse","numerical","shortanswer","btn_cancel","btn_select","btn_insert","title"].map(((l,i)=>(STR[l]=res[i],"")))})()};const _createModal=async function(){_modal=await _modal_factory.default.create({title:STR.title,templateContext:{elementid:_editor.id},removeOnClose:!0,large:!0})};_exports.displayDialogue=async function(){await _createModal();var subquestion=resolveSubquestion();subquestion?(_selectedOffset=indexOfNode(_editor.dom.select("."+markerClass),subquestion),_parseSubquestion(subquestion.innerHTML),_setDialogueContent(_qtype)):(_selectedOffset=-1,_setDialogueContent())};const _addMarkers=function(){let m,content=_editor.getContent(),newContent="";if(-1===content.indexOf(markerClass)){do{if(m=content.match(reQtype),!m){newContent+=content;break}const pos=content.indexOf(m[0]);newContent+=content.substring(0,pos)+markerSpan+content.substring(pos,pos+m[0].length),content=content.substring(pos+m[0].length);let level=(m[0].match(/\{/g)||[]).length;if(1!==level){for(;level>1;){const a=content.indexOf("{"),b=content.indexOf("}");a>-1&&b>-1&&a<b?(level++,newContent=content.substring(0,a),content=content.substring(a+1)):b>-1?(newContent=content.substring(0,b),content=content.substring(b+1),level--):level=1}newContent+="</span>"}else newContent+="</span>"}while(m);_editor.setContent(newContent)}},_removeMarkers=function(){for(const span of _editor.dom.select("span."+markerClass))_editor.dom.setOuterHTML(span,span.classList.contains("new")?"":span.innerHTML)};_exports.onBeforeGetContent=function(content){if(!isNull(content.source_view)&&!0===content.source_view){var onClose=function(){_editor.off("close",onClose),_addMarkers()};_editor.on("CloseWindow",(()=>{onClose()})),_modal||_removeMarkers()}};_exports.onSubmit=function(){_removeMarkers()};const _setDialogueContent=function(qtype,nomodalevents){const footer=_mustache.default.render(TEMPLATE.FOOTER,{cancel:STR.btn_cancel,submit:qtype?STR.btn_insert:STR.btn_select});let contentText;contentText=qtype?_mustache.default.render(TEMPLATE.FORM,{CSS:CSS,STR:STR,answerdata:_answerdata,elementid:getUuid(),qtype:_qtype,name:getQuestionTypes().filter((q=>_qtype===q.type))[0].name,marks:_marks,numerical:"NUMERICAL"===_qtype||"NM"===_qtype}):_mustache.default.render(TEMPLATE.TYPE,{CSS:CSS,STR:STR,qtype:_qtype,types:getQuestionTypes()}),_modal.setBody(contentText),_modal.setFooter(footer),_modal.show();const $root=_modal.getRoot();if(_form=$root.get(0).querySelector("form"),!nomodalevents){if(_modal.registerEventListeners(),_modal.registerCloseOnSave(),_modal.registerCloseOnCancel(),$root.on(_modal_events.default.cancel,_cancel),!qtype)return void $root.on(_modal_events.default.save,_choiceHandler);$root.on(_modal_events.default.save,_setSubquestion)}const getTarget=e=>{let p=e.target;for(;!isNull(p)&&1===p.nodeType&&"A"!==p.tagName;)p=p.parentNode;return isNull(p.classList)?null:p};_form.addEventListener("click",(e=>{const p=getTarget(e);if(!isNull(p))return p.classList.contains(CSS.DELETE)?(e.preventDefault(),void _deleteAnswer(p)):p.classList.contains(CSS.ADD)?(e.preventDefault(),void _addAnswer(p)):p.classList.contains(CSS.LOWER)?(e.preventDefault(),void _lowerAnswer(p)):void(p.classList.contains(CSS.RAISE)&&(e.preventDefault(),_raiseAnswer(p)))})),_form.addEventListener("keyup",(e=>{const p=getTarget(e);isNull(p)||(p.classList.contains(CSS.ANSWER)||p.classList.contains(CSS.FEEDBACK))&&(e.preventDefault(),_addAnswer(p))}))},_choiceHandler=function(e){e.preventDefault();let qtype=_form.querySelector("input[name=qtype]:checked");qtype&&(_qtype=qtype.value);const one=-1!==_qtype.indexOf("SHORTANSWER")||"NUMERICAL"===_qtype,blankAnswer={id:getUuid(),answer:"",feedback:"",fraction:100,fractionOptions:getFractionOptions(one?"=":""),tolerance:0};_answerdata=one?[blankAnswer]:[blankAnswer,blankAnswer,blankAnswer],_modal.destroy(),_createModal().then((()=>(_setDialogueContent(_qtype),_form.querySelector("."+CSS.ANSWER).focus(),""))).catch()},_parseSubquestion=function(question){_answerdata=[];const parts=reQtype.exec(question);if(reQtype.lastIndex=0,!parts)return;_marks=parts[1],_qtype=parts[2],_qtype.length<5&&getQuestionTypes().forEach((l=>{for(const a of l.abbr)if(a===_qtype)return void(_qtype=l.type)}));const answers=parts[7].match(/(\\.|[^~])*/g);answers&&answers.forEach((function(answer){const options=/^(%(-?[.0-9]+)%|(=?))((\\.|[^#])*)#?(.*)/.exec(answer);if(options&&options[4]){let frac=0;if(options[3]?frac="="===options[3]?"=":100:options[2]&&(frac=options[2]),"NUMERICAL"===_qtype||"NM"===_qtype){const tolerance=/^([^:]*):?(.*)/.exec(options[4])[2]||0;return void _answerdata.push({id:getUuid(),answer:strdecode(options[4].replace(/:.*/,"")),feedback:strdecode(options[6]),tolerance:tolerance,fraction:frac,fractionOptions:getFractionOptions(frac)})}_answerdata.push({answer:strdecode(options[4]),id:getUuid(),feedback:strdecode(options[6]),fraction:frac,fractionOptions:getFractionOptions(frac)})}}))},_addAnswer=function(a){let index=indexOfNode(_form.querySelectorAll("."+CSS.ADD),a);-1===index&&(index=indexOfNode(_form.querySelectorAll("."+CSS.ANSWER+", ."+CSS.FEEDBACK),a),-1!==index&&(index=Math.floor(index/2)+1));let fraction="";a.closest("li")&&(fraction=a.closest("li").querySelector("."+CSS.FRACTION).value,index=indexOfNode(_form.querySelectorAll("li"),a.closest("li"))+1);let tolerance=0;a.closest("li")&&a.closest("li").querySelector("."+CSS.TOLERANCE)&&(tolerance=a.closest("li").querySelector("."+CSS.TOLERANCE).value),_getFormData(),_answerdata.splice(index,0,{id:getUuid(),answer:"",feedback:"",fraction:fraction,fractionOptions:getFractionOptions(fraction),tolerance:tolerance}),_setDialogueContent(_qtype,!0),_form.querySelectorAll("."+CSS.ANSWER).item(index).focus()},_deleteAnswer=function(a){let index=indexOfNode(_form.querySelectorAll("."+CSS.DELETE),a);-1===index&&(index=indexOfNode(_form.querySelectorAll("li"),a.closest("li"))),_getFormData(),_answerdata.splice(index,1),_setDialogueContent(_qtype,!0);const answers=_form.querySelectorAll("."+CSS.ANSWER);index=Math.min(index,answers.length-1),answers.item(index).focus()},_lowerAnswer=function(a){const li=a.closest("li");li.before(li.nextSibling),li.querySelector("."+CSS.ANSWER).focus()},_raiseAnswer=function(a){const li=a.closest("li");li.after(li.previousSibling),li.querySelector("."+CSS.ANSWER).focus()},_cancel=function(e){e.preventDefault();for(const span of _editor.dom.select("."+markerClass+".new"))span.remove();_modal.destroy(),_editor.focus(),_modal=null},_setSubquestion=function(e){e.preventDefault(),_getFormData();let question="{"+_marks+":"+_qtype+":";for(let i=0;i<_answerdata.length;i++)question+=_answerdata[i].fraction&&!isNaN(_answerdata[i].fraction)?"%"+_answerdata[i].fraction+"%":_answerdata[i].fraction,question+=strencode(_answerdata[i].answer),_answerdata[i].tolerance&&(question+=":"+_answerdata[i].tolerance),_answerdata[i].feedback&&(question+="#"+strencode(_answerdata[i].feedback)),i<_answerdata.length-1&&(question+="~");question+="}",_modal.destroy(),_modal=null,_editor.focus(),_selectedOffset>-1?_editor.dom.select("."+markerClass)[_selectedOffset].innerHTML=question:_editor.insertContent(markerSpan+question+"</span>")},_getFormData=function(){let answer;_answerdata=[];const answers=_form.querySelectorAll("."+CSS.ANSWER),feedbacks=_form.querySelectorAll("."+CSS.FEEDBACK),fractions=_form.querySelectorAll("."+CSS.FRACTION),tolerances=_form.querySelectorAll("."+CSS.TOLERANCE);for(let i=0;i<answers.length;i++)answer=answers.item(i).value,"NM"!==_qtype&&"NUMERICAL"!==_qtype||(answer=Number(answer)),_answerdata.push({answer:answer,id:getUuid(),feedback:feedbacks.item(i).value,fraction:fractions.item(i).value,fractionOptions:getFractionOptions(fractions.item(i).value),tolerance:isNull(tolerances.item(i))?0:tolerances.item(i).value}),_marks=_form.querySelector("."+CSS.MARKS).value},resolveSubquestion=function(){let span=_editor.selection.getStart();return!isNull(span.classList)&&span.classList.contains(markerClass)?span:(_editor.dom.getParents(span,(elm=>!(isNull(elm.classList)||!elm.classList.contains(markerClass))&&elm)),!1)};_exports.resolveSubquestion=resolveSubquestion}));
+   */Object.defineProperty(_exports,"__esModule",{value:!0}),_exports.resolveSubquestion=_exports.onSubmit=_exports.onInit=_exports.onBeforeGetContent=_exports.displayDialogue=void 0,_modal_events=_interopRequireDefault(_modal_events),_modal_factory=_interopRequireDefault(_modal_factory),_mustache=_interopRequireDefault(_mustache);const isNull=a=>null==a,strdecode=t=>String(t).replace(/\\(#|\}|~)/g,"$1"),strencode=t=>String(t).replace(/(#|\}|~)/g,"\\$1"),indexOfNode=(list,node)=>{for(let i=0;i<list.length;i++)if(list[i]===node)return i;return-1},getUuid=function(){return isNull(crypto.randomUUID)?"ed-cloze-"+Math.floor(1e5*Math.random()).toString():crypto.randomUUID()},getFractionOptions=s=>{let html='<option value="">'+STR.incorrect+'</option><option value="="';return"="===s&&(html+=' selected="selected"'),html+=">"+STR.correct+"</option>",FRACTIONS.forEach((item=>{html+='<option value="'+item.value+'"',item.value.toString()===s&&(html+=' selected="selected"'),html+=">"+item.value+"%</option>"})),html},markerClass="cloze-question-marker",markerSpan='<span contenteditable="false" class="'+markerClass+'" data-mce-contenteditable="false">',reQtype=/\{([0-9]*):(MULTICHOICE(_H|_V|_S|_HS|_VS)?|MULTIRESPONSE(_H|_S|_HS)?|NUMERICAL|SHORTANSWER(_C)?|SAC?|NM|MWC?|M[CR](V|H|VS|HS)?):(.*?)\}/g,CSS={ANSWER:"tiny_cloze_answer",ANSWERS:"tiny_cloze_answers",ADD:"tiny_cloze_add",CANCEL:"tiny_cloze_cancel",DELETE:"tiny_cloze_delete",FEEDBACK:"tiny_cloze_feedback",FRACTION:"tiny_cloze_fraction",LEFT:"tiny_cloze_col0",LOWER:"tiny_cloze_down",RIGHT:"tiny_cloze_col1",MARKS:"tiny_cloze_marks",DUPLICATE:"tiny_cloze_duplicate",RAISE:"tiny_cloze_up",SUBMIT:"tiny_cloze_submit",SUMMARY:"tiny_cloze_summary",TOLERANCE:"tiny_cloze_tolerance",TYPE:"tiny_cloze_qtype"},TEMPLATE={FORM:'<div class="tiny_cloze"><p>{{name}} ({{qtype}})</p><form name="tiny_cloze_form"><div class="row ml-0"><div class="form-group"><label for="{{elementid}}_mark">{{STR.defaultmark}}</label><input id="{{elementid}}_mark" type="text" value="{{marks}}" class="{{CSS.MARKS}} form-control d-inline mx-1" /><a class="{{CSS.ADD}}" title="{{STR.addmoreanswerblanks}}"><img class="icon_smallicon" src="'+M.util.image_url("t/add","core")+'"></a></div></div><div class="{{CSS.ANSWERS}} mb-3"><ol class="pl-3">{{#answerdata}}<li class="mt-3"><div class="row ml-0"><div class="{{CSS.LEFT}} form-group"><label for="{{id}}_answer">{{STR.answer}}</label><input id="{{id}}_answer" type="text" value="{{answer}}" class="{{CSS.ANSWER}} form-control d-inline mx-2" /></div><div class="{{CSS.LEFT}} form-group"><a class="{{CSS.ADD}}" title="{{STR.addmoreanswerblanks}}"><img class="icon_smallicon" src="'+M.util.image_url("t/add","core")+'"></a><a class="{{CSS.DELETE}}" title="{{STR.delete}}"><img class="icon_smallicon" src="'+M.util.image_url("t/delete","core")+'"></a><a class="{{CSS.RAISE}}" title="{{STR.up}}"><img class="icon_smallicon" src="'+M.util.image_url("t/up","core")+'"></a><a class="{{CSS.LOWER}}" title="{{STR.down}}"><img class="icon_smallicon" src="'+M.util.image_url("t/down","core")+'"></a></div></div>{{#numerical}}<div class="row"><div class="{{CSS.RIGHT}} form-group"><label for="{{id}}_tolerance">{{{STR.tolerance}}}</label><input id="{{id}}_tolerance" type="text" value="{{tolerance}}" class="{{CSS.TOLERANCE}} form-control d-inline mx-2" /></div></div>{{/numerical}}<div class="row"><div class="{{CSS.RIGHT}} form-group"><label for="{{id}}_feedback">{{STR.feedback}}</label><input id="{{id}}_feedback" type="text" value="{{feedback}}" class="{{CSS.FEEDBACK}} form-control d-inline mx-2" /></div><div class="{{CSS.RIGHT}} form-group"><label id="{{id}}_grade">{{STR.grade}}</label><select id="{{id}}_grade" class="{{CSS.FRACTION}} custom-select mx-2">{{{fractionOptions}}}</select></div></div></li>{{/answerdata}}</ol></div></form></div>',TYPE:'<div class="tiny_cloze mt-0 mx-2 mb-2"><p>{{STR.chooseqtypetoadd}}</p><form name="tiny_cloze_form"><div class="{{CSS.TYPE}} form-check">{{#types}}<div class="option"><input name="qtype" id="qtype_qtype_{{type}}" value="{{type}}" type="radio" class="form-check-input"><label for="qtype_qtype_{{type}}"><span class="typename">{{type}}</span><span class="{{CSS.SUMMARY}}"><h6>{{name}}</h6><p>{{summary}}</p><ul>{{#options}}<li>{{.}}</li>{{/options}}</ul></span></label></div>{{/types}}</div></form></div>',FOOTER:'<button type="button" class="btn btn-secondary" data-action="cancel">{{cancel}}</button><button type="button" class="btn btn-primary" data-action="save">{{submit}}</button>'},FRACTIONS=[{value:100},{value:50},{value:33.33333},{value:25},{value:20},{value:16.66667},{value:14.28571},{value:12.5},{value:11.11111},{value:10},{value:5},{value:0},{value:-5},{value:-10},{value:-11.11111},{value:-12.5},{value:-14.28571},{value:-16.66667},{value:-20},{value:-25},{value:-33.333},{value:-50},{value:-100}];let STR={};const getQuestionTypes=function(){return[{type:"MULTICHOICE",abbr:["MC"],name:STR.multichoice,summary:STR.summary_multichoice,options:[STR.selectinline,STR.singleyes]},{type:"MULTICHOICE_H",abbr:["MCH"],name:STR.multichoice,summary:STR.summary_multichoice,options:[STR.horizontal,STR.singleyes]},{type:"MULTICHOICE_V",abbr:["MCV"],name:STR.multichoice,summary:STR.summary_multichoice,options:[STR.vertical,STR.singleyes]},{type:"MULTICHOICE_S",abbr:["MCS"],name:STR.multichoice,summary:STR.summary_multichoice,options:[STR.selectinline,STR.shuffle,STR.singleyes]},{type:"MULTICHOICE_HS",abbr:["MCHS"],name:STR.multichoice,summary:STR.summary_multichoice,options:[STR.horizontal,STR.shuffle,STR.singleyes]},{type:"MULTICHOICE_VS",abbr:["MCVS"],name:STR.multichoice,summary:STR.summary_multichoice,options:[STR.vertical,STR.shuffle,STR.singleyes]},{type:"MULTIRESPONSE",abbr:["MR"],name:STR.multiresponse,summary:STR.summary_multichoice,options:[STR.multi_vertical,STR.singleno]},{type:"MULTIRESPONSE_H",abbr:["MRH"],name:STR.multiresponse,summary:STR.summary_multichoice,options:[STR.multi_horizontal,STR.singleno]},{type:"MULTIRESPONSE_S",abbr:["MRS"],name:STR.multiresponse,summary:STR.summary_multichoice,options:[STR.multi_vertical,STR.shuffle,STR.singleno]},{type:"MULTIRESPONSE_HS",abbr:["MRHS"],name:STR.multiresponse,summary:STR.summary_multichoice,options:[STR.multi_horizontal,STR.shuffle,STR.singleno]},{type:"NUMERICAL",abbr:["NM"],name:STR.numerical,summary:STR.summary_numerical},{type:"SHORTANSWER",abbr:["SA","MW"],name:STR.shortanswer,summary:STR.summary_shortanswer,options:[STR.caseno]},{type:"SHORTANSWER_C",abbr:["SAC","MWC"],name:STR.shortanswer,summary:STR.summary_shortanswer,options:[STR.caseyes]}]};let _editor=null,_form=null,_answerdata=[],_qtype=null,_selectedOffset=-1,_marks=1,_modal=null;_exports.onInit=function(ed){_editor=ed,_addMarkers(),(async()=>{const res=await Promise.all([(0,_str.get_string)("answer","question"),(0,_str.get_string)("chooseqtypetoadd","question"),(0,_str.get_string)("defaultmark","question"),(0,_str.get_string)("feedback","question"),(0,_str.get_string)("correct","question"),(0,_str.get_string)("incorrect","question"),(0,_str.get_string)("addmoreanswerblanks","qtype_calculated"),(0,_str.get_string)("delete","core"),(0,_str.get_string)("up","core"),(0,_str.get_string)("down","core"),(0,_str.get_string)("tolerance","qtype_calculated"),(0,_str.get_string)("grade","grades"),(0,_str.get_string)("caseno","mod_quiz"),(0,_str.get_string)("caseyes","mod_quiz"),(0,_str.get_string)("answersingleno","qtype_multichoice"),(0,_str.get_string)("answersingleyes","qtype_multichoice"),(0,_str.get_string)("layoutselectinline","qtype_multianswer"),(0,_str.get_string)("layouthorizontal","qtype_multianswer"),(0,_str.get_string)("layoutvertical","qtype_multianswer"),(0,_str.get_string)("shufflewithin","mod_quiz"),(0,_str.get_string)("layoutmultiple_horizontal","qtype_multianswer"),(0,_str.get_string)("layoutmultiple_vertical","qtype_multianswer"),(0,_str.get_string)("pluginnamesummary","qtype_multichoice"),(0,_str.get_string)("pluginnamesummary","qtype_shortanswer"),(0,_str.get_string)("pluginnamesummary","qtype_numerical"),(0,_str.get_string)("multichoice",_common.component),(0,_str.get_string)("multiresponse",_common.component),(0,_str.get_string)("numerical","mod_quiz"),(0,_str.get_string)("shortanswer","mod_quiz"),(0,_str.get_string)("cancel","core"),(0,_str.get_string)("select",_common.component),(0,_str.get_string)("insert",_common.component),(0,_str.get_string)("pluginname",_common.component)]);["answer","chooseqtypetoadd","defaultmark","feedback","correct","incorrect","addmoreanswerblanks","delete","up","down","tolerance","grade","caseno","caseyes","singleno","singleyes","selectinline","horizontal","vertical","shuffle","multi_horizontal","multi_vertical","summary_multichoice","summary_shortanswer","summary_numerical","multichoice","multiresponse","numerical","shortanswer","btn_cancel","btn_select","btn_insert","title"].map(((l,i)=>(STR[l]=res[i],"")))})()};const _createModal=async function(){_modal=await _modal_factory.default.create({title:STR.title,templateContext:{elementid:_editor.id},removeOnClose:!0,large:!0})};_exports.displayDialogue=async function(){await _createModal();var subquestion=resolveSubquestion();subquestion?(_selectedOffset=indexOfNode(_editor.dom.select("."+markerClass),subquestion),_parseSubquestion(subquestion.innerHTML),_setDialogueContent(_qtype)):(_selectedOffset=-1,_setDialogueContent())};const _addMarkers=function(){let m,content=_editor.getContent(),newContent="";if(-1===content.indexOf(markerClass)){do{if(m=content.match(reQtype),!m){newContent+=content;break}const pos=content.indexOf(m[0]);newContent+=content.substring(0,pos)+markerSpan+content.substring(pos,pos+m[0].length),content=content.substring(pos+m[0].length);let level=(m[0].match(/\{/g)||[]).length;if(1!==level){for(;level>1;){const a=content.indexOf("{"),b=content.indexOf("}");a>-1&&b>-1&&a<b?(level++,newContent=content.substring(0,a),content=content.substring(a+1)):b>-1?(newContent=content.substring(0,b),content=content.substring(b+1),level--):level=1}newContent+="</span>"}else newContent+="</span>"}while(m);_editor.setContent(newContent)}},_removeMarkers=function(){for(const span of _editor.dom.select("span."+markerClass))_editor.dom.setOuterHTML(span,span.classList.contains("new")?"":span.innerHTML)};_exports.onBeforeGetContent=function(content){if(!isNull(content.source_view)&&!0===content.source_view){var onClose=function(){_editor.off("close",onClose),_addMarkers()};_editor.on("CloseWindow",(()=>{onClose()})),_modal||_removeMarkers()}};_exports.onSubmit=function(){_removeMarkers()};const _setDialogueContent=function(qtype,nomodalevents){const footer=_mustache.default.render(TEMPLATE.FOOTER,{cancel:STR.btn_cancel,submit:qtype?STR.btn_insert:STR.btn_select});let contentText;contentText=qtype?_mustache.default.render(TEMPLATE.FORM,{CSS:CSS,STR:STR,answerdata:_answerdata,elementid:getUuid(),qtype:_qtype,name:getQuestionTypes().filter((q=>_qtype===q.type))[0].name,marks:_marks,numerical:"NUMERICAL"===_qtype||"NM"===_qtype}):_mustache.default.render(TEMPLATE.TYPE,{CSS:CSS,STR:STR,qtype:_qtype,types:getQuestionTypes()}),_modal.setBody(contentText),_modal.setFooter(footer),_modal.show();const $root=_modal.getRoot();if(_form=$root.get(0).querySelector("form"),!nomodalevents){if(_modal.registerEventListeners(),_modal.registerCloseOnSave(),_modal.registerCloseOnCancel(),$root.on(_modal_events.default.cancel,_cancel),!qtype)return void $root.on(_modal_events.default.save,_choiceHandler);$root.on(_modal_events.default.save,_setSubquestion)}const getTarget=e=>{let p=e.target;for(;!isNull(p)&&1===p.nodeType&&"A"!==p.tagName;)p=p.parentNode;return isNull(p.classList)?null:p};_form.addEventListener("click",(e=>{const p=getTarget(e);if(!isNull(p))return p.classList.contains(CSS.DELETE)?(e.preventDefault(),void _deleteAnswer(p)):p.classList.contains(CSS.ADD)?(e.preventDefault(),void _addAnswer(p)):p.classList.contains(CSS.LOWER)?(e.preventDefault(),void _lowerAnswer(p)):void(p.classList.contains(CSS.RAISE)&&(e.preventDefault(),_raiseAnswer(p)))})),_form.addEventListener("keyup",(e=>{const p=getTarget(e);isNull(p)||(p.classList.contains(CSS.ANSWER)||p.classList.contains(CSS.FEEDBACK))&&(e.preventDefault(),_addAnswer(p))}))},_choiceHandler=function(e){e.preventDefault();let qtype=_form.querySelector("input[name=qtype]:checked");qtype&&(_qtype=qtype.value);const one=-1!==_qtype.indexOf("SHORTANSWER")||"NUMERICAL"===_qtype,blankAnswer={id:getUuid(),answer:"",feedback:"",fraction:100,fractionOptions:getFractionOptions(one?"=":""),tolerance:0};_answerdata=one?[blankAnswer]:[blankAnswer,blankAnswer,blankAnswer],_modal.destroy(),_createModal().then((()=>(_setDialogueContent(_qtype),_form.querySelector("."+CSS.ANSWER).focus(),""))).catch((()=>{}))},_parseSubquestion=function(question){_answerdata=[];const parts=reQtype.exec(question);if(reQtype.lastIndex=0,!parts)return;_marks=parts[1],_qtype=parts[2],_qtype.length<5&&getQuestionTypes().forEach((l=>{for(const a of l.abbr)if(a===_qtype)return void(_qtype=l.type)}));const answers=parts[7].match(/(\\.|[^~])*/g);answers&&answers.forEach((function(answer){const options=/^(%(-?[.0-9]+)%|(=?))((\\.|[^#])*)#?(.*)/.exec(answer);if(options&&options[4]){let frac=0;if(options[3]?frac="="===options[3]?"=":100:options[2]&&(frac=options[2]),"NUMERICAL"===_qtype||"NM"===_qtype){const tolerance=/^([^:]*):?(.*)/.exec(options[4])[2]||0;return void _answerdata.push({id:getUuid(),answer:strdecode(options[4].replace(/:.*/,"")),feedback:strdecode(options[6]),tolerance:tolerance,fraction:frac,fractionOptions:getFractionOptions(frac)})}_answerdata.push({answer:strdecode(options[4]),id:getUuid(),feedback:strdecode(options[6]),fraction:frac,fractionOptions:getFractionOptions(frac)})}}))},_addAnswer=function(a){let index=indexOfNode(_form.querySelectorAll("."+CSS.ADD),a);-1===index&&(index=indexOfNode(_form.querySelectorAll("."+CSS.ANSWER+", ."+CSS.FEEDBACK),a),-1!==index&&(index=Math.floor(index/2)+1));let fraction="";a.closest("li")&&(fraction=a.closest("li").querySelector("."+CSS.FRACTION).value,index=indexOfNode(_form.querySelectorAll("li"),a.closest("li"))+1);let tolerance=0;a.closest("li")&&a.closest("li").querySelector("."+CSS.TOLERANCE)&&(tolerance=a.closest("li").querySelector("."+CSS.TOLERANCE).value),_getFormData(),_answerdata.splice(index,0,{id:getUuid(),answer:"",feedback:"",fraction:fraction,fractionOptions:getFractionOptions(fraction),tolerance:tolerance}),_setDialogueContent(_qtype,!0),_form.querySelectorAll("."+CSS.ANSWER).item(index).focus()},_deleteAnswer=function(a){let index=indexOfNode(_form.querySelectorAll("."+CSS.DELETE),a);-1===index&&(index=indexOfNode(_form.querySelectorAll("li"),a.closest("li"))),_getFormData(),_answerdata.splice(index,1),_setDialogueContent(_qtype,!0);const answers=_form.querySelectorAll("."+CSS.ANSWER);index=Math.min(index,answers.length-1),answers.item(index).focus()},_lowerAnswer=function(a){const li=a.closest("li");li.before(li.nextSibling),li.querySelector("."+CSS.ANSWER).focus()},_raiseAnswer=function(a){const li=a.closest("li");li.after(li.previousSibling),li.querySelector("."+CSS.ANSWER).focus()},_cancel=function(e){e.preventDefault();for(const span of _editor.dom.select("."+markerClass+".new"))span.remove();_modal.destroy(),_editor.focus(),_modal=null},_setSubquestion=function(e){e.preventDefault(),_getFormData();let question="{"+_marks+":"+_qtype+":";for(let i=0;i<_answerdata.length;i++)question+=_answerdata[i].fraction&&!isNaN(_answerdata[i].fraction)?"%"+_answerdata[i].fraction+"%":_answerdata[i].fraction,question+=strencode(_answerdata[i].answer),_answerdata[i].tolerance&&(question+=":"+_answerdata[i].tolerance),_answerdata[i].feedback&&(question+="#"+strencode(_answerdata[i].feedback)),i<_answerdata.length-1&&(question+="~");question+="}",_modal.destroy(),_modal=null,_editor.focus(),_selectedOffset>-1?_editor.dom.select("."+markerClass)[_selectedOffset].innerHTML=question:_editor.insertContent(markerSpan+question+"</span>")},_getFormData=function(){let answer;_answerdata=[];const answers=_form.querySelectorAll("."+CSS.ANSWER),feedbacks=_form.querySelectorAll("."+CSS.FEEDBACK),fractions=_form.querySelectorAll("."+CSS.FRACTION),tolerances=_form.querySelectorAll("."+CSS.TOLERANCE);for(let i=0;i<answers.length;i++)answer=answers.item(i).value,"NM"!==_qtype&&"NUMERICAL"!==_qtype||(answer=Number(answer)),_answerdata.push({answer:answer,id:getUuid(),feedback:feedbacks.item(i).value,fraction:fractions.item(i).value,fractionOptions:getFractionOptions(fractions.item(i).value),tolerance:isNull(tolerances.item(i))?0:tolerances.item(i).value}),_marks=_form.querySelector("."+CSS.MARKS).value},resolveSubquestion=function(){let span=_editor.selection.getStart();return!isNull(span.classList)&&span.classList.contains(markerClass)?span:(_editor.dom.getParents(span,(elm=>!(isNull(elm.classList)||!elm.classList.contains(markerClass))&&elm)),!1)};_exports.resolveSubquestion=resolveSubquestion}));
 
 //# sourceMappingURL=ui.min.js.map
\ No newline at end of file
diff --git a/amd/build/ui.min.js.map b/amd/build/ui.min.js.map
index 8f6c7cd..2288756 100644
--- a/amd/build/ui.min.js.map
+++ b/amd/build/ui.min.js.map
@@ -1 +1 @@
-{"version":3,"file":"ui.min.js","sources":["../src/ui.js"],"sourcesContent":["// This file is part of Moodle - https://moodle.org/\n//\n// Moodle is free software: you can redistribute it and/or modify\n// it under the terms of the GNU General Public License as published by\n// the Free Software Foundation, either version 3 of the License, or\n// (at your option) any later version.\n//\n// Moodle is distributed in the hope that it will be useful,\n// but WITHOUT ANY WARRANTY; without even the implied warranty of\n// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n// GNU General Public License for more details.\n//\n// You should have received a copy of the GNU General Public License\n// along with Moodle.  If not, see <https://www.gnu.org/licenses/>.\n\n/**\n * Plugin tiny_cloze for TinyMCE v6 in Moodle.\n *\n * @module      tiny_cloze/ui\n * @copyright   2023 MoodleDACH\n * @license     http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later\n */\n\nimport ModalEvents from 'core/modal_events';\nimport ModalFactory from 'core/modal_factory';\nimport Mustache from 'core/mustache';\nimport {get_string as getString} from 'core/str';\nimport {component} from './common';\n\n// Helper functions.\nconst isNull = a => a === null || a === undefined;\nconst strdecode = t => String(t).replace(/\\\\(#|\\}|~)/g, '$1');\nconst strencode = t => String(t).replace(/(#|\\}|~)/g, '\\\\$1');\nconst indexOfNode = (list, node) => {\n  for (let i = 0; i < list.length; i++) {\n    if (list[i] === node) {\n      return i;\n    }\n  }\n  return -1;\n};\nconst getUuid = function() {\n  if (!isNull(crypto.randomUUID)) {\n    return crypto.randomUUID();\n  }\n  return 'ed-cloze-' + Math.floor(Math.random() * 100000).toString();\n};\n\n// This is a specific helper function to return the options html for the fraction select element.\nconst getFractionOptions = s => {\n  let html = '<option value=\"\">' + STR.incorrect + '</option><option value=\"=\"';\n  if (s === '=') {\n    html += ' selected=\"selected\"';\n  }\n  html += '>' + STR.correct + '</option>';\n  FRACTIONS.forEach(item => {\n    html += '<option value=\"' + item.value + '\"';\n    if (item.value.toString() === s) {\n      html += ' selected=\"selected\"';\n    }\n    html += '>' + item.value + '%</option>';\n  });\n  return html;\n};\n// Marker class and the whole span element that is used to encapsulate the cloze question text.\nconst markerClass = 'cloze-question-marker';\nconst markerSpan = '<span contenteditable=\"false\" class=\"' + markerClass + '\" data-mce-contenteditable=\"false\">';\n// Regex to recognize the question string in the text e.g. {1:NUMERICAL:...} or {:MULTICHOICE:...}\n// eslint-disable-next-line max-len\nconst reQtype = /\\{([0-9]*):(MULTICHOICE(_H|_V|_S|_HS|_VS)?|MULTIRESPONSE(_H|_S|_HS)?|NUMERICAL|SHORTANSWER(_C)?|SAC?|NM|MWC?|M[CR](V|H|VS|HS)?):(.*?)\\}/g;\n\n// CSS classes that are used in the modal dialogue.\nconst CSS = {\n  ANSWER: 'tiny_cloze_answer',\n  ANSWERS: 'tiny_cloze_answers',\n  ADD: 'tiny_cloze_add',\n  CANCEL: 'tiny_cloze_cancel',\n  DELETE: 'tiny_cloze_delete',\n  FEEDBACK: 'tiny_cloze_feedback',\n  FRACTION: 'tiny_cloze_fraction',\n  LEFT: 'tiny_cloze_col0',\n  LOWER: 'tiny_cloze_down',\n  RIGHT: 'tiny_cloze_col1',\n  MARKS: 'tiny_cloze_marks',\n  DUPLICATE: 'tiny_cloze_duplicate',\n  RAISE: 'tiny_cloze_up',\n  SUBMIT: 'tiny_cloze_submit',\n  SUMMARY: 'tiny_cloze_summary',\n  TOLERANCE: 'tiny_cloze_tolerance',\n  TYPE: 'tiny_cloze_qtype'\n};\nconst TEMPLATE = {\n    FORM: '<div class=\"tiny_cloze\">' +\n      '<p>{{name}} ({{qtype}})</p>' +\n      '<form name=\"tiny_cloze_form\">' +\n      '<div class=\"row ml-0\">' +\n      '<div class=\"form-group\">' +\n      '<label for=\"{{elementid}}_mark\">{{STR.defaultmark}}</label>' +\n      '<input id=\"{{elementid}}_mark\" type=\"text\" value=\"{{marks}}\" ' +\n      'class=\"{{CSS.MARKS}} form-control d-inline mx-1\" />' +\n      '<a class=\"{{CSS.ADD}}\" title=\"{{STR.addmoreanswerblanks}}\">' +\n      '<img class=\"icon_smallicon\" src=\"' +\n      M.util.image_url('t/add', 'core') + '\"></a>' +\n      '</div>' +\n      '</div>' +\n      '<div class=\"{{CSS.ANSWERS}} mb-3\">' +\n      '<ol class=\"pl-3\">{{#answerdata}}' +\n      '<li class=\"mt-3\"><div class=\"row ml-0\">' +\n      '<div class=\"{{CSS.LEFT}} form-group\">' +\n      '<label for=\"{{id}}_answer\">{{STR.answer}}</label>' +\n      '<input id=\"{{id}}_answer\" type=\"text\" value=\"{{answer}}\" ' +\n      'class=\"{{CSS.ANSWER}} form-control d-inline mx-2\" />' +\n      '</div>' +\n      '<div class=\"{{CSS.LEFT}} form-group\">' +\n      '<a class=\"{{CSS.ADD}}\" title=\"{{STR.addmoreanswerblanks}}\">' +\n      '<img class=\"icon_smallicon\" src=\"' +\n      M.util.image_url('t/add', 'core') + '\"></a>' +\n      '<a class=\"{{CSS.DELETE}}\" title=\"{{STR.delete}}\">' +\n      '<img class=\"icon_smallicon\" src=\"' +\n      M.util.image_url('t/delete', 'core') + '\"></a>' +\n      '<a class=\"{{CSS.RAISE}}\" title=\"{{STR.up}}\">' +\n      '<img class=\"icon_smallicon\" src=\"' +\n      M.util.image_url('t/up', 'core') + '\"></a>' +\n      '<a class=\"{{CSS.LOWER}}\" title=\"{{STR.down}}\">' +\n      '<img class=\"icon_smallicon\" src=\"' +\n      M.util.image_url('t/down', 'core') + '\"></a>' +\n      '</div>' +\n      '</div>' +\n      '{{#numerical}}' +\n      '<div class=\"row\">' +\n      '<div class=\"{{CSS.RIGHT}} form-group\">' +\n      '<label for=\"{{id}}_tolerance\">{{{STR.tolerance}}}</label>' +\n      '<input id=\"{{id}}_tolerance\" type=\"text\" value=\"{{tolerance}}\" ' +\n      'class=\"{{CSS.TOLERANCE}} form-control d-inline mx-2\" />' +\n      '</div>' +\n      '</div>' +\n      '{{/numerical}}' +\n      '<div class=\"row\">' +\n      '<div class=\"{{CSS.RIGHT}} form-group\">' +\n      '<label for=\"{{id}}_feedback\">{{STR.feedback}}</label>' +\n      '<input id=\"{{id}}_feedback\" type=\"text\" value=\"{{feedback}}\" ' +\n      'class=\"{{CSS.FEEDBACK}} form-control d-inline mx-2\" />' +\n      '</div>' +\n      '<div class=\"{{CSS.RIGHT}} form-group\">' +\n      '<label id=\"{{id}}_grade\">{{STR.grade}}</label>' +\n      '<select id=\"{{id}}_grade\" class=\"{{CSS.FRACTION}} custom-select mx-2\">' +\n      '{{{fractionOptions}}}' +\n      '</select>' +\n      '</div>' +\n      '</div></li>' +\n      '{{/answerdata}}</ol></div>' +\n      '</form>' +\n      '</div>',\n    TYPE: '<div class=\"tiny_cloze mt-0 mx-2 mb-2\">' +\n      '<p>{{STR.chooseqtypetoadd}}</p>' +\n      '<form name=\"tiny_cloze_form\">' +\n      '<div class=\"{{CSS.TYPE}} form-check\">' +\n      '{{#types}}' +\n      '<div class=\"option\">' +\n      '<input name=\"qtype\" id=\"qtype_qtype_{{type}}\" value=\"{{type}}\" type=\"radio\" class=\"form-check-input\">' +\n      '<label for=\"qtype_qtype_{{type}}\">' +\n      '<span class=\"typename\">{{type}}</span>' +\n      '<span class=\"{{CSS.SUMMARY}}\"><h6>{{name}}</h6><p>{{summary}}</p>' +\n      '<ul>{{#options}}' +\n      '<li>{{.}}</li>' +\n      '{{/options}}</ul>' +\n      '</span>' +\n      '</label></div>' +\n      '{{/types}}</div>' +\n      '</form></div>',\n    FOOTER: '<button type=\"button\" class=\"btn btn-secondary\" data-action=\"cancel\">{{cancel}}</button>' +\n      '<button type=\"button\" class=\"btn btn-primary\" data-action=\"save\">{{submit}}</button>',\n  };\n  const FRACTIONS = [\n    {value: 100},\n    {value: 50},\n    {value: 33.33333},\n    {value: 25},\n    {value: 20},\n    {value: 16.66667},\n    {value: 14.28571},\n    {value: 12.5},\n    {value: 11.11111},\n    {value: 10},\n    {value: 5},\n    {value: 0},\n    {value: -5},\n    {value: -10},\n    {value: -11.11111},\n    {value: -12.5},\n    {value: -14.28571},\n    {value: -16.66667},\n    {value: -20},\n    {value: -25},\n    {value: -33.333},\n    {value: -50},\n    {value: -100},\n  ];\n\n// Language strings used in the modal dialogue.\nlet STR = {};\nconst getStr = async() => {\n  const res = await Promise.all([\n    getString('answer', 'question'),\n    getString('chooseqtypetoadd', 'question'),\n    getString('defaultmark', 'question'),\n    getString('feedback', 'question'),\n    getString('correct', 'question'),\n    getString('incorrect', 'question'),\n    getString('addmoreanswerblanks', 'qtype_calculated'),\n    getString('delete', 'core'),\n    getString('up', 'core'),\n    getString('down', 'core'),\n    getString('tolerance', 'qtype_calculated'),\n    getString('grade', 'grades'),\n    getString('caseno', 'mod_quiz'),\n    getString('caseyes', 'mod_quiz'),\n    getString('answersingleno', 'qtype_multichoice'),\n    getString('answersingleyes', 'qtype_multichoice'),\n    getString('layoutselectinline', 'qtype_multianswer'),\n    getString('layouthorizontal', 'qtype_multianswer'),\n    getString('layoutvertical', 'qtype_multianswer'),\n    getString('shufflewithin', 'mod_quiz'),\n    getString('layoutmultiple_horizontal', 'qtype_multianswer'),\n    getString('layoutmultiple_vertical', 'qtype_multianswer'),\n    getString('pluginnamesummary', 'qtype_multichoice'),\n    getString('pluginnamesummary', 'qtype_shortanswer'),\n    getString('pluginnamesummary', 'qtype_numerical'),\n    getString('multichoice', component),\n    getString('multiresponse', component),\n    getString('numerical', 'mod_quiz'),\n    getString('shortanswer', 'mod_quiz'),\n    getString('cancel', 'core'),\n    getString('select', component),\n    getString('insert', component),\n    getString('pluginname', component),\n  ]);\n  [\n    'answer',\n    'chooseqtypetoadd',\n    'defaultmark',\n    'feedback',\n    'correct',\n    'incorrect',\n    'addmoreanswerblanks',\n    'delete',\n    'up',\n    'down',\n    'tolerance',\n    'grade',\n    'caseno',\n    'caseyes',\n    'singleno',\n    'singleyes',\n    'selectinline',\n    'horizontal',\n    'vertical',\n    'shuffle',\n    'multi_horizontal',\n    'multi_vertical',\n    'summary_multichoice',\n    'summary_shortanswer',\n    'summary_numerical',\n    'multichoice',\n    'multiresponse',\n    'numerical',\n    'shortanswer',\n    'btn_cancel',\n    'btn_select',\n    'btn_insert',\n    'title',\n  ].map((l, i) => {\n    STR[l] = res[i];\n    return ''; // Make the linter happy.\n  });\n};\nconst getQuestionTypes = function() {\n  return [\n    {\n      'type': 'MULTICHOICE',\n      'abbr': ['MC'],\n      'name': STR.multichoice,\n      'summary': STR.summary_multichoice,\n      'options': [STR.selectinline, STR.singleyes],\n    },\n    {\n      'type': 'MULTICHOICE_H',\n      'abbr': ['MCH'],\n      'name': STR.multichoice,\n      'summary': STR.summary_multichoice,\n      'options': [STR.horizontal, STR.singleyes],\n    },\n    {\n      'type': 'MULTICHOICE_V',\n      'abbr': ['MCV'],\n      'name': STR.multichoice,\n      'summary': STR.summary_multichoice,\n      'options': [STR.vertical, STR.singleyes],\n    },\n    {\n      'type': 'MULTICHOICE_S',\n      'abbr': ['MCS'],\n      'name': STR.multichoice,\n      'summary': STR.summary_multichoice,\n      'options': [STR.selectinline, STR.shuffle, STR.singleyes],\n    },\n    {\n      'type': 'MULTICHOICE_HS',\n      'abbr': ['MCHS'],\n      'name': STR.multichoice,\n      'summary': STR.summary_multichoice,\n      'options': [STR.horizontal, STR.shuffle, STR.singleyes],\n    },\n    {\n      'type': 'MULTICHOICE_VS',\n      'abbr': ['MCVS'],\n      'name': STR.multichoice,\n      'summary': STR.summary_multichoice,\n      'options': [STR.vertical, STR.shuffle, STR.singleyes],\n    },\n    {\n      'type': 'MULTIRESPONSE',\n      'abbr': ['MR'],\n      'name': STR.multiresponse,\n      'summary': STR.summary_multichoice,\n      'options': [STR.multi_vertical, STR.singleno],\n    },\n    {\n      'type': 'MULTIRESPONSE_H',\n      'abbr': ['MRH'],\n      'name': STR.multiresponse,\n      'summary': STR.summary_multichoice,\n      'options': [STR.multi_horizontal, STR.singleno],\n    },\n    {\n      'type': 'MULTIRESPONSE_S',\n      'abbr': ['MRS'],\n      'name': STR.multiresponse,\n      'summary': STR.summary_multichoice,\n      'options': [STR.multi_vertical, STR.shuffle, STR.singleno],\n    },\n    {\n      'type': 'MULTIRESPONSE_HS',\n      'abbr': ['MRHS'],\n      'name': STR.multiresponse,\n      'summary': STR.summary_multichoice,\n      'options': [STR.multi_horizontal, STR.shuffle, STR.singleno],\n    },\n    {\n      'type': 'NUMERICAL',\n      'abbr': ['NM'],\n      'name': STR.numerical,\n      'summary': STR.summary_numerical,\n    },\n    {\n      'type': 'SHORTANSWER',\n      'abbr': ['SA', 'MW'],\n      'name': STR.shortanswer,\n      'summary': STR.summary_shortanswer,\n      'options': [STR.caseno],\n    },\n    {\n      'type': 'SHORTANSWER_C',\n      'abbr': ['SAC', 'MWC'],\n      'name': STR.shortanswer,\n      'summary': STR.summary_shortanswer,\n      'options': [STR.caseyes],\n    },\n  ];\n};\n\n/**\n * The editor instance that is injected via the onInit() function.\n *\n * @type tinymce.Editor\n * @private\n */\nlet _editor = null;\n\n/**\n * A reference to the currently open form.\n *\n * @param _form\n * @type Node\n * @private\n */\nlet _form = null;\n\n/**\n * An array containing the current answers options\n *\n * @param _answerdata\n * @type Array\n * @private\n */\nlet _answerdata = [];\n\n/**\n * The sub question type to be edited\n *\n * @param _qtype\n * @type String\n * @private\n */\nlet _qtype = null;\n\n/**\n * Remember the pos of the selected node.\n * @type {number}\n * @private\n */\nlet _selectedOffset = -1;\n\n/**\n * The maximum marks for the sub question\n *\n * @param _marks\n * @type Integer\n * @private\n */\nlet _marks = 1;\n\n/**\n * The modal dialogue to be displayed when designing the cloze question types.\n * @type Modal|null\n */\nlet _modal = null;\n\n/**\n * Inject the editor instance and add markers to the cloze question texts.\n * @param {tinymce.Editor} ed\n */\nconst onInit = function(ed) {\n  _editor = ed; // The current editor instance.\n  // Add the marker spans.\n  _addMarkers();\n  // And get the language strings.\n  getStr();\n};\n\n/**\n * Create the modal.\n * @return {Promise<void>}\n * @private\n */\nconst _createModal = async function() {\n  // Create the modal dialogue. Depending on whether we have a selected node or not, the content is different.\n  _modal = await ModalFactory.create({\n    title: STR.title,\n    templateContext: {\n      elementid: _editor.id\n    },\n    removeOnClose: true,\n    large: true,\n  });\n};\n\n/**\n * Display modal dialogue to edit a cloze question. Either a form is displayed to edit subquestion or a list\n * of possible questions is show.\n *\n * @method displayDialogue\n * @private\n */\nconst displayDialogue = async function() {\n  await _createModal();\n\n  // Resolve whether cursor is in a subquestion.\n  var subquestion = resolveSubquestion();\n  if (subquestion) {\n    // Subquestion found, remember which node of the marker nodes is selected.\n    _selectedOffset = indexOfNode(_editor.dom.select('.' + markerClass), subquestion);\n    _parseSubquestion(subquestion.innerHTML);\n    _setDialogueContent(_qtype);\n  } else {\n    // No subquestion found, no offset to remember.\n    _selectedOffset = -1;\n    _setDialogueContent();\n  }\n};\n\n/**\n * Search for cloze questions based on a regular expression. All the matching snippets at least contain the cloze\n * question definition. Although Moodle does not support encapsulated other functions within curly brackets, we\n * still try to find the correct closing bracket. The so extracted cloze question is surrounded by a marker span\n * element, that contains attributes so that the content inside the span cannot be modified by the editor (in the\n * textarea). Also, this makes it a lot easier to select the question, edit it in the dialogue and replace the result\n * in the existing text area.\n */\nconst _addMarkers = function() {\n\n  let content = _editor.getContent();\n  let newContent = '';\n\n  // Check if there is already a marker span. In this case we do not have to do anything.\n  if (content.indexOf(markerClass) !== -1) {\n    return;\n  }\n\n  let m;\n  do {\n    m = content.match(reQtype);\n    if (!m) { // No match of a cloze question, then we are done.\n      newContent += content;\n      break;\n    }\n    // Copy the current match to the new string preceded with the <span>.\n    const pos = content.indexOf(m[0]);\n    newContent += content.substring(0, pos) + markerSpan + content.substring(pos, pos + m[0].length);\n    content = content.substring(pos + m[0].length);\n\n    // Count the { in the string, should be just one (the very first one at position 0).\n    let level = (m[0].match(/\\{/g) || []).length;\n    if (level === 1) {\n      // If that's the case, we close the span and the cloze question text is the innerHTML of that marker span.\n      newContent += '</span>';\n      continue; // Look for the next matching cloze question.\n    }\n    // If there are more { than } in the string, then we did not find the corresponding } that belongs to the cloze string.\n    while (level > 1) {\n      const a = content.indexOf('{');\n      const b = content.indexOf('}');\n      if (a > -1 && b > -1 && a < b) { // The { is before another } so remember to find as many } until we back at level 1.\n        level++;\n        newContent = content.substring(0, a);\n        content = content.substring(a + 1);\n      } else if (b > -1) { // We found a closing } to a previously {.\n        newContent = content.substring(0, b);\n        content = content.substring(b + 1);\n        level--;\n      } else {\n        level = 1; // Should not happen, just to stop the endless loop.\n      }\n    }\n    newContent += '</span>';\n  } while (m);\n  _editor.setContent(newContent);\n};\n\n/**\n * Look for the marker span elements around a cloze question and remove that span. Also, the marker for a new\n * node to be inserted would be removed here as well.\n */\nconst _removeMarkers = function() {\n  for (const span of _editor.dom.select('span.' + markerClass)) {\n    _editor.dom.setOuterHTML(span, span.classList.contains('new') ? '' : span.innerHTML);\n  }\n};\n\n/**\n * When the source code view dialogue is show, we must remove the spans around the cloze question strings\n * from the editor content and add them again when the dialogue is closed.\n * Since this event is also triggered when the editor data is saved, we use this function to remove the\n * highlighting content at that time.\n * @param {object} content\n */\nconst onBeforeGetContent = function(content) {\n  if (!isNull(content.source_view) && content.source_view === true) {\n    // If the user clicks on 'Cancel' or the close button on the html\n    // source code dialog view, make sure we re-add the visual styling.\n    var onClose = function() {\n      _editor.off('close', onClose);\n      _addMarkers();\n    };\n    _editor.on('CloseWindow', () => {\n      onClose();\n    });\n    // Remove markers only if modal is not called, otherwise we will lose our new question marker.\n    if (!_modal) {\n      _removeMarkers();\n    }\n  }\n};\n\n/**\n * Fires when the form containing the editor is submitted.\n */\nconst onSubmit = function() {\n  _removeMarkers();\n};\n\n/**\n * Set the dialogue content for the tool, attaching any required events. Either the modal dialogue displays\n * a list of the question types for the form for a particular question to edit. The set content is also\n * called when the form has changed (up or down move, deletion and adding a response). We must be aware of that\n * an event to the dialogue buttons must attached once only. Therefore when the form content is modified, only\n * the form events for the answers are set again, the general events are nor (nomodalevents is true then).\n *\n * @method _setDialogueContent\n * @param {String} qtype The question type to be used\n * @param {boolean} nomodalevents Optional do not attach events.\n * @private\n */\nconst _setDialogueContent = function(qtype, nomodalevents) {\n  const footer = Mustache.render(TEMPLATE.FOOTER, {\n    cancel: STR.btn_cancel,\n    submit: !qtype ? STR.btn_select : STR.btn_insert,\n  });\n  let contentText;\n  if (!qtype) {\n    contentText = Mustache.render(TEMPLATE.TYPE, {\n      CSS: CSS,\n      STR: STR,\n      qtype: _qtype,\n      types: getQuestionTypes()\n    });\n  } else {\n    contentText = Mustache.render(TEMPLATE.FORM, {\n      CSS: CSS,\n      STR: STR,\n      answerdata: _answerdata,\n      elementid: getUuid(),\n      qtype: _qtype,\n      name: getQuestionTypes().filter(q => _qtype === q.type)[0].name,\n      marks: _marks,\n      numerical: (_qtype === 'NUMERICAL' || _qtype === 'NM')\n    });\n  }\n  _modal.setBody(contentText);\n  _modal.setFooter(footer);\n  _modal.show();\n  const $root = _modal.getRoot();\n  _form = $root.get(0).querySelector('form');\n\n  if (!nomodalevents) {\n    _modal.registerEventListeners();\n    _modal.registerCloseOnSave();\n    _modal.registerCloseOnCancel();\n    $root.on(ModalEvents.cancel, _cancel);\n\n    if (!qtype) { // For the question list we need the choice handler only, and we are done.\n      $root.on(ModalEvents.save, _choiceHandler);\n      return;\n    } // Handler to add the question string to the editor content.\n    $root.on(ModalEvents.save, _setSubquestion);\n  }\n  // The form needs events for the icons to move up/down, add or delete a response.\n  const getTarget = e => {\n    let p = e.target;\n    while (!isNull(p) && p.nodeType === 1 && p.tagName !== 'A') {\n      p = p.parentNode;\n    }\n    if (isNull(p.classList)) {\n      return null;\n    }\n    return p;\n  };\n\n  _form.addEventListener('click', e => {\n    const p = getTarget(e);\n    if (isNull(p)) {\n      return;\n    }\n    if (p.classList.contains(CSS.DELETE)) {\n      e.preventDefault();\n      _deleteAnswer(p);\n      return;\n    }\n    if (p.classList.contains(CSS.ADD)) {\n      e.preventDefault();\n      _addAnswer(p);\n      return;\n    }\n    if (p.classList.contains(CSS.LOWER)) {\n      e.preventDefault();\n      _lowerAnswer(p);\n      return;\n    }\n    if (p.classList.contains(CSS.RAISE)) {\n      e.preventDefault();\n      _raiseAnswer(p);\n    }\n  });\n  _form.addEventListener('keyup', e => {\n    const p = getTarget(e);\n    if (isNull(p)) {\n      return;\n    }\n    if (p.classList.contains(CSS.ANSWER) || p.classList.contains(CSS.FEEDBACK)) {\n      e.preventDefault();\n      _addAnswer(p);\n    }\n  });\n};\n\n/**\n * Handle question choice.\n *\n * @method _choiceHandler\n * @private\n * @param {Event} e Event from button click in chooser\n */\nconst _choiceHandler = function(e) {\n  e.preventDefault();\n  let qtype = _form.querySelector('input[name=qtype]:checked');\n  if (qtype) {\n    _qtype = qtype.value;\n  }\n  const one = _qtype.indexOf('SHORTANSWER') !== -1 || _qtype === 'NUMERICAL';\n  const blankAnswer = {\n    id: getUuid(),\n    answer: '',\n    feedback: '',\n    fraction: 100,\n    fractionOptions: getFractionOptions(one ? '=' : ''),\n    tolerance: 0\n  };\n  _answerdata = one ? [blankAnswer] : [blankAnswer, blankAnswer, blankAnswer];\n  _modal.destroy();\n  // Our choice is stored in _qtype. We need to create the modal dialogue with the form now.\n  _createModal().then(() => {\n    _setDialogueContent(_qtype);\n    _form.querySelector('.' + CSS.ANSWER).focus();\n    return ''; // Make the linter happy.\n  }).catch();\n};\n\n/**\n * Parse question and set properties found.\n *\n * @method _parseSubquestion\n * @private\n * @param {String} question The question string\n */\nconst _parseSubquestion = function(question) {\n  _answerdata = []; // Flush answers to have an empty dialogue if something goes wrong parsing the question string.\n  const parts = reQtype.exec(question);\n  reQtype.lastIndex = 0; // Reset lastIndex so that the next match starts from the beginning of the question string.\n  if (!parts) {\n    return;\n  }\n  _marks = parts[1];\n  _qtype = parts[2];\n  // Convert the short notation to the long form e.g. SA to SHORTANSWER.\n  if (_qtype.length < 5) {\n    getQuestionTypes().forEach(l => {\n      for (const a of l.abbr) {\n        if (a === _qtype) {\n          _qtype = l.type;\n          return;\n        }\n      }\n    });\n  }\n  const answers = parts[7].match(/(\\\\.|[^~])*/g);\n  if (!answers) {\n    return;\n  }\n  answers.forEach(function(answer) {\n    const options = /^(%(-?[.0-9]+)%|(=?))((\\\\.|[^#])*)#?(.*)/.exec(answer);\n    if (options && options[4]) {\n      let frac = 0;\n      if (options[3]) {\n        frac = options[3] === '=' ? '=' : 100;\n      } else if (options[2]) {\n        frac = options[2];\n      }\n      if (_qtype === 'NUMERICAL' || _qtype === 'NM') {\n        const tolerance = /^([^:]*):?(.*)/.exec(options[4])[2] || 0;\n        _answerdata.push({\n          id: getUuid(),\n          answer: strdecode(options[4].replace(/:.*/, '')),\n          feedback: strdecode(options[6]),\n          tolerance: tolerance,\n          fraction: frac,\n          fractionOptions: getFractionOptions(frac),\n        });\n        return;\n      }\n      _answerdata.push({\n        answer: strdecode(options[4]),\n        id: getUuid(),\n        feedback: strdecode(options[6]),\n        fraction: frac,\n        fractionOptions: getFractionOptions(frac),\n      });\n    }\n  });\n};\n\n/**\n * Insert a new set of answer blanks below the button.\n *\n * @method _addAnswer\n * @param {Node} a Node that is the referred element\n * @private\n */\nconst _addAnswer = function(a) {\n  let index = indexOfNode(_form.querySelectorAll('.' + CSS.ADD), a);\n  if (index === -1) {\n    index = indexOfNode(_form.querySelectorAll('.' + CSS.ANSWER + ', .' + CSS.FEEDBACK), a);\n    if (index !== -1) {\n      index = Math.floor(index / 2) + 1;\n    }\n  }\n  let fraction = '';\n  if (a.closest('li')) {\n    fraction = a.closest('li').querySelector('.' + CSS.FRACTION).value;\n    index = indexOfNode(_form.querySelectorAll('li'), a.closest('li')) + 1;\n  }\n  let tolerance = 0;\n  if (a.closest('li') && a.closest('li').querySelector('.' + CSS.TOLERANCE)) {\n    tolerance = a.closest('li').querySelector('.' + CSS.TOLERANCE).value;\n  }\n  _getFormData();\n  _answerdata.splice(index, 0, {\n    id: getUuid(),\n    answer: '',\n    feedback: '',\n    fraction: fraction,\n    fractionOptions: getFractionOptions(fraction),\n    tolerance: tolerance\n  });\n  _setDialogueContent(_qtype, true);\n  _form.querySelectorAll('.' + CSS.ANSWER).item(index).focus();\n};\n\n/**\n * Delete set of answer next to the button.\n *\n * @method _deleteAnswer\n * @param {Node} a Node that is the referred element\n * @private\n */\nconst _deleteAnswer = function(a) {\n  let index = indexOfNode(_form.querySelectorAll('.' + CSS.DELETE), a);\n  if (index === -1) {\n    index = indexOfNode(_form.querySelectorAll('li'), a.closest('li'));\n  }\n  _getFormData();\n  _answerdata.splice(index, 1);\n  _setDialogueContent(_qtype, true);\n  const answers = _form.querySelectorAll('.' + CSS.ANSWER);\n  index = Math.min(index, answers.length - 1);\n  answers.item(index).focus();\n};\n\n/**\n * Lower answer option\n *\n * @method _lowerAnswer\n * @param {Node} a Node that is the referred element\n * @private\n */\nconst _lowerAnswer = function(a) {\n  const li = a.closest('li');\n  li.before(li.nextSibling);\n  li.querySelector('.' + CSS.ANSWER).focus();\n};\n\n/**\n * Raise answer option\n *\n * @method _raiseAnswer\n * @param {Node} a Node that is the referred element\n * @private\n */\nconst _raiseAnswer = function(a) {\n  const li = a.closest('li');\n  li.after(li.previousSibling);\n  li.querySelector('.' + CSS.ANSWER).focus();\n};\n\n/**\n * Reset and hide form.\n *\n * @method _cancel\n * @param {Event} e Event from button click\n * @private\n */\nconst _cancel = function(e) {\n  e.preventDefault();\n  // In case there is a marker where the new question should be inserted in the text it needs to be removed.\n  for (const span of _editor.dom.select('.' + markerClass + '.new')) {\n    span.remove();\n  }\n  _modal.destroy();\n  _editor.focus();\n  _modal = null;\n};\n\n/**\n * Insert question string into editor content and reset and hide form.\n *\n * @method _setSubquestion\n * @param {Event} e Event from button click\n * @private\n */\nconst _setSubquestion = function(e) {\n  e.preventDefault();\n  _getFormData();\n\n  // Build the parser function from the data, that is going to be placed into the editor content.\n  let question = '{' + _marks + ':' + _qtype + ':';\n\n  for (let i = 0; i < _answerdata.length; i++) {\n    question += _answerdata[i].fraction && !isNaN(_answerdata[i].fraction)\n      ? '%' + _answerdata[i].fraction + '%' : _answerdata[i].fraction;\n    question += strencode(_answerdata[i].answer);\n    if (_answerdata[i].tolerance) {\n      question += ':' + _answerdata[i].tolerance;\n    }\n    if (_answerdata[i].feedback) {\n      question += '#' + strencode(_answerdata[i].feedback);\n    }\n    if (i < _answerdata.length - 1) {\n      question += '~';\n    }\n  }\n  question += '}';\n\n  _modal.destroy();\n  _modal = null;\n  _editor.focus();\n  if (_selectedOffset > -1) { // We have to replace one of the marker spans (the innerHTML contains the question string).\n    _editor.dom.select('.' + markerClass)[_selectedOffset].innerHTML = question;\n  } else {\n    // Just add the question text with markup.\n    _editor.insertContent(markerSpan + question + '</span>');\n  }\n};\n\n/**\n * Read the form data, process it and store the result in the internal  _answerdata array.\n *\n * @method _getFormData\n * @private\n */\nconst _getFormData = function() {\n  _answerdata = [];\n  let answer;\n  const answers = _form.querySelectorAll('.' + CSS.ANSWER);\n  const feedbacks = _form.querySelectorAll('.' + CSS.FEEDBACK);\n  const fractions = _form.querySelectorAll('.' + CSS.FRACTION);\n  const tolerances = _form.querySelectorAll('.' + CSS.TOLERANCE);\n  for (let i = 0; i < answers.length; i++) {\n    answer = answers.item(i).value;\n    if (_qtype === 'NM' || _qtype === 'NUMERICAL') {\n      answer = Number(answer);\n    }\n    _answerdata.push({\n      answer: answer,\n      id: getUuid(),\n      feedback: feedbacks.item(i).value,\n      fraction: fractions.item(i).value,\n      fractionOptions: getFractionOptions(fractions.item(i).value),\n      tolerance: !isNull(tolerances.item(i)) ? tolerances.item(i).value : 0\n    });\n    _marks = _form.querySelector('.' + CSS.MARKS).value;\n  }\n};\n\n/**\n * Check whether cursor is in a subquestion and return subquestion text if\n * true.\n *\n * @method resolveSubquestion\n * @return {Mixed} The selected node of with the subquestion if found, false otherwise.\n */\nconst resolveSubquestion = function() {\n  let span = _editor.selection.getStart();\n  if (!isNull(span.classList) && span.classList.contains(markerClass)) {\n    return span;\n  }\n  _editor.dom.getParents(span, elm => {\n    // Are we in a span that encapsulates the cloze question?\n    if (!isNull(elm.classList) && elm.classList.contains(markerClass)) {\n      return elm;\n    }\n    return false;\n  });\n  return false;\n};\n\nexport {\n  displayDialogue,\n  resolveSubquestion,\n  onInit,\n  onBeforeGetContent,\n  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+{"version":3,"file":"ui.min.js","sources":["../src/ui.js"],"sourcesContent":["// This file is part of Moodle - https://moodle.org/\n//\n// Moodle is free software: you can redistribute it and/or modify\n// it under the terms of the GNU General Public License as published by\n// the Free Software Foundation, either version 3 of the License, or\n// (at your option) any later version.\n//\n// Moodle is distributed in the hope that it will be useful,\n// but WITHOUT ANY WARRANTY; without even the implied warranty of\n// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n// GNU General Public License for more details.\n//\n// You should have received a copy of the GNU General Public License\n// along with Moodle.  If not, see <https://www.gnu.org/licenses/>.\n\n/**\n * Plugin tiny_cloze for TinyMCE v6 in Moodle.\n *\n * @module      tiny_cloze/ui\n * @copyright   2023 MoodleDACH\n * @license     http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later\n */\n\nimport ModalEvents from 'core/modal_events';\nimport ModalFactory from 'core/modal_factory';\nimport Mustache from 'core/mustache';\nimport {get_string as getString} from 'core/str';\nimport {component} from './common';\n\n// Helper functions.\nconst isNull = a => a === null || a === undefined;\nconst strdecode = t => String(t).replace(/\\\\(#|\\}|~)/g, '$1');\nconst strencode = t => String(t).replace(/(#|\\}|~)/g, '\\\\$1');\nconst indexOfNode = (list, node) => {\n  for (let i = 0; i < list.length; i++) {\n    if (list[i] === node) {\n      return i;\n    }\n  }\n  return -1;\n};\nconst getUuid = function() {\n  if (!isNull(crypto.randomUUID)) {\n    return crypto.randomUUID();\n  }\n  return 'ed-cloze-' + Math.floor(Math.random() * 100000).toString();\n};\n\n// This is a specific helper function to return the options html for the fraction select element.\nconst getFractionOptions = s => {\n  let html = '<option value=\"\">' + STR.incorrect + '</option><option value=\"=\"';\n  if (s === '=') {\n    html += ' selected=\"selected\"';\n  }\n  html += '>' + STR.correct + '</option>';\n  FRACTIONS.forEach(item => {\n    html += '<option value=\"' + item.value + '\"';\n    if (item.value.toString() === s) {\n      html += ' selected=\"selected\"';\n    }\n    html += '>' + item.value + '%</option>';\n  });\n  return html;\n};\n// Marker class and the whole span element that is used to encapsulate the cloze question text.\nconst markerClass = 'cloze-question-marker';\nconst markerSpan = '<span contenteditable=\"false\" class=\"' + markerClass + '\" data-mce-contenteditable=\"false\">';\n// Regex to recognize the question string in the text e.g. {1:NUMERICAL:...} or {:MULTICHOICE:...}\n// eslint-disable-next-line max-len\nconst reQtype = /\\{([0-9]*):(MULTICHOICE(_H|_V|_S|_HS|_VS)?|MULTIRESPONSE(_H|_S|_HS)?|NUMERICAL|SHORTANSWER(_C)?|SAC?|NM|MWC?|M[CR](V|H|VS|HS)?):(.*?)\\}/g;\n\n// CSS classes that are used in the modal dialogue.\nconst CSS = {\n  ANSWER: 'tiny_cloze_answer',\n  ANSWERS: 'tiny_cloze_answers',\n  ADD: 'tiny_cloze_add',\n  CANCEL: 'tiny_cloze_cancel',\n  DELETE: 'tiny_cloze_delete',\n  FEEDBACK: 'tiny_cloze_feedback',\n  FRACTION: 'tiny_cloze_fraction',\n  LEFT: 'tiny_cloze_col0',\n  LOWER: 'tiny_cloze_down',\n  RIGHT: 'tiny_cloze_col1',\n  MARKS: 'tiny_cloze_marks',\n  DUPLICATE: 'tiny_cloze_duplicate',\n  RAISE: 'tiny_cloze_up',\n  SUBMIT: 'tiny_cloze_submit',\n  SUMMARY: 'tiny_cloze_summary',\n  TOLERANCE: 'tiny_cloze_tolerance',\n  TYPE: 'tiny_cloze_qtype'\n};\nconst TEMPLATE = {\n    FORM: '<div class=\"tiny_cloze\">' +\n      '<p>{{name}} ({{qtype}})</p>' +\n      '<form name=\"tiny_cloze_form\">' +\n      '<div class=\"row ml-0\">' +\n      '<div class=\"form-group\">' +\n      '<label for=\"{{elementid}}_mark\">{{STR.defaultmark}}</label>' +\n      '<input id=\"{{elementid}}_mark\" type=\"text\" value=\"{{marks}}\" ' +\n      'class=\"{{CSS.MARKS}} form-control d-inline mx-1\" />' +\n      '<a class=\"{{CSS.ADD}}\" title=\"{{STR.addmoreanswerblanks}}\">' +\n      '<img class=\"icon_smallicon\" src=\"' +\n      M.util.image_url('t/add', 'core') + '\"></a>' +\n      '</div>' +\n      '</div>' +\n      '<div class=\"{{CSS.ANSWERS}} mb-3\">' +\n      '<ol class=\"pl-3\">{{#answerdata}}' +\n      '<li class=\"mt-3\"><div class=\"row ml-0\">' +\n      '<div class=\"{{CSS.LEFT}} form-group\">' +\n      '<label for=\"{{id}}_answer\">{{STR.answer}}</label>' +\n      '<input id=\"{{id}}_answer\" type=\"text\" value=\"{{answer}}\" ' +\n      'class=\"{{CSS.ANSWER}} form-control d-inline mx-2\" />' +\n      '</div>' +\n      '<div class=\"{{CSS.LEFT}} form-group\">' +\n      '<a class=\"{{CSS.ADD}}\" title=\"{{STR.addmoreanswerblanks}}\">' +\n      '<img class=\"icon_smallicon\" src=\"' +\n      M.util.image_url('t/add', 'core') + '\"></a>' +\n      '<a class=\"{{CSS.DELETE}}\" title=\"{{STR.delete}}\">' +\n      '<img class=\"icon_smallicon\" src=\"' +\n      M.util.image_url('t/delete', 'core') + '\"></a>' +\n      '<a class=\"{{CSS.RAISE}}\" title=\"{{STR.up}}\">' +\n      '<img class=\"icon_smallicon\" src=\"' +\n      M.util.image_url('t/up', 'core') + '\"></a>' +\n      '<a class=\"{{CSS.LOWER}}\" title=\"{{STR.down}}\">' +\n      '<img class=\"icon_smallicon\" src=\"' +\n      M.util.image_url('t/down', 'core') + '\"></a>' +\n      '</div>' +\n      '</div>' +\n      '{{#numerical}}' +\n      '<div class=\"row\">' +\n      '<div class=\"{{CSS.RIGHT}} form-group\">' +\n      '<label for=\"{{id}}_tolerance\">{{{STR.tolerance}}}</label>' +\n      '<input id=\"{{id}}_tolerance\" type=\"text\" value=\"{{tolerance}}\" ' +\n      'class=\"{{CSS.TOLERANCE}} form-control d-inline mx-2\" />' +\n      '</div>' +\n      '</div>' +\n      '{{/numerical}}' +\n      '<div class=\"row\">' +\n      '<div class=\"{{CSS.RIGHT}} form-group\">' +\n      '<label for=\"{{id}}_feedback\">{{STR.feedback}}</label>' +\n      '<input id=\"{{id}}_feedback\" type=\"text\" value=\"{{feedback}}\" ' +\n      'class=\"{{CSS.FEEDBACK}} form-control d-inline mx-2\" />' +\n      '</div>' +\n      '<div class=\"{{CSS.RIGHT}} form-group\">' +\n      '<label id=\"{{id}}_grade\">{{STR.grade}}</label>' +\n      '<select id=\"{{id}}_grade\" class=\"{{CSS.FRACTION}} custom-select mx-2\">' +\n      '{{{fractionOptions}}}' +\n      '</select>' +\n      '</div>' +\n      '</div></li>' +\n      '{{/answerdata}}</ol></div>' +\n      '</form>' +\n      '</div>',\n    TYPE: '<div class=\"tiny_cloze mt-0 mx-2 mb-2\">' +\n      '<p>{{STR.chooseqtypetoadd}}</p>' +\n      '<form name=\"tiny_cloze_form\">' +\n      '<div class=\"{{CSS.TYPE}} form-check\">' +\n      '{{#types}}' +\n      '<div class=\"option\">' +\n      '<input name=\"qtype\" id=\"qtype_qtype_{{type}}\" value=\"{{type}}\" type=\"radio\" class=\"form-check-input\">' +\n      '<label for=\"qtype_qtype_{{type}}\">' +\n      '<span class=\"typename\">{{type}}</span>' +\n      '<span class=\"{{CSS.SUMMARY}}\"><h6>{{name}}</h6><p>{{summary}}</p>' +\n      '<ul>{{#options}}' +\n      '<li>{{.}}</li>' +\n      '{{/options}}</ul>' +\n      '</span>' +\n      '</label></div>' +\n      '{{/types}}</div>' +\n      '</form></div>',\n    FOOTER: '<button type=\"button\" class=\"btn btn-secondary\" data-action=\"cancel\">{{cancel}}</button>' +\n      '<button type=\"button\" class=\"btn btn-primary\" data-action=\"save\">{{submit}}</button>',\n  };\n  const FRACTIONS = [\n    {value: 100},\n    {value: 50},\n    {value: 33.33333},\n    {value: 25},\n    {value: 20},\n    {value: 16.66667},\n    {value: 14.28571},\n    {value: 12.5},\n    {value: 11.11111},\n    {value: 10},\n    {value: 5},\n    {value: 0},\n    {value: -5},\n    {value: -10},\n    {value: -11.11111},\n    {value: -12.5},\n    {value: -14.28571},\n    {value: -16.66667},\n    {value: -20},\n    {value: -25},\n    {value: -33.333},\n    {value: -50},\n    {value: -100},\n  ];\n\n// Language strings used in the modal dialogue.\nlet STR = {};\nconst getStr = async() => {\n  const res = await Promise.all([\n    getString('answer', 'question'),\n    getString('chooseqtypetoadd', 'question'),\n    getString('defaultmark', 'question'),\n    getString('feedback', 'question'),\n    getString('correct', 'question'),\n    getString('incorrect', 'question'),\n    getString('addmoreanswerblanks', 'qtype_calculated'),\n    getString('delete', 'core'),\n    getString('up', 'core'),\n    getString('down', 'core'),\n    getString('tolerance', 'qtype_calculated'),\n    getString('grade', 'grades'),\n    getString('caseno', 'mod_quiz'),\n    getString('caseyes', 'mod_quiz'),\n    getString('answersingleno', 'qtype_multichoice'),\n    getString('answersingleyes', 'qtype_multichoice'),\n    getString('layoutselectinline', 'qtype_multianswer'),\n    getString('layouthorizontal', 'qtype_multianswer'),\n    getString('layoutvertical', 'qtype_multianswer'),\n    getString('shufflewithin', 'mod_quiz'),\n    getString('layoutmultiple_horizontal', 'qtype_multianswer'),\n    getString('layoutmultiple_vertical', 'qtype_multianswer'),\n    getString('pluginnamesummary', 'qtype_multichoice'),\n    getString('pluginnamesummary', 'qtype_shortanswer'),\n    getString('pluginnamesummary', 'qtype_numerical'),\n    getString('multichoice', component),\n    getString('multiresponse', component),\n    getString('numerical', 'mod_quiz'),\n    getString('shortanswer', 'mod_quiz'),\n    getString('cancel', 'core'),\n    getString('select', component),\n    getString('insert', component),\n    getString('pluginname', component),\n  ]);\n  [\n    'answer',\n    'chooseqtypetoadd',\n    'defaultmark',\n    'feedback',\n    'correct',\n    'incorrect',\n    'addmoreanswerblanks',\n    'delete',\n    'up',\n    'down',\n    'tolerance',\n    'grade',\n    'caseno',\n    'caseyes',\n    'singleno',\n    'singleyes',\n    'selectinline',\n    'horizontal',\n    'vertical',\n    'shuffle',\n    'multi_horizontal',\n    'multi_vertical',\n    'summary_multichoice',\n    'summary_shortanswer',\n    'summary_numerical',\n    'multichoice',\n    'multiresponse',\n    'numerical',\n    'shortanswer',\n    'btn_cancel',\n    'btn_select',\n    'btn_insert',\n    'title',\n  ].map((l, i) => {\n    STR[l] = res[i];\n    return ''; // Make the linter happy.\n  });\n};\nconst getQuestionTypes = function() {\n  return [\n    {\n      'type': 'MULTICHOICE',\n      'abbr': ['MC'],\n      'name': STR.multichoice,\n      'summary': STR.summary_multichoice,\n      'options': [STR.selectinline, STR.singleyes],\n    },\n    {\n      'type': 'MULTICHOICE_H',\n      'abbr': ['MCH'],\n      'name': STR.multichoice,\n      'summary': STR.summary_multichoice,\n      'options': [STR.horizontal, STR.singleyes],\n    },\n    {\n      'type': 'MULTICHOICE_V',\n      'abbr': ['MCV'],\n      'name': STR.multichoice,\n      'summary': STR.summary_multichoice,\n      'options': [STR.vertical, STR.singleyes],\n    },\n    {\n      'type': 'MULTICHOICE_S',\n      'abbr': ['MCS'],\n      'name': STR.multichoice,\n      'summary': STR.summary_multichoice,\n      'options': [STR.selectinline, STR.shuffle, STR.singleyes],\n    },\n    {\n      'type': 'MULTICHOICE_HS',\n      'abbr': ['MCHS'],\n      'name': STR.multichoice,\n      'summary': STR.summary_multichoice,\n      'options': [STR.horizontal, STR.shuffle, STR.singleyes],\n    },\n    {\n      'type': 'MULTICHOICE_VS',\n      'abbr': ['MCVS'],\n      'name': STR.multichoice,\n      'summary': STR.summary_multichoice,\n      'options': [STR.vertical, STR.shuffle, STR.singleyes],\n    },\n    {\n      'type': 'MULTIRESPONSE',\n      'abbr': ['MR'],\n      'name': STR.multiresponse,\n      'summary': STR.summary_multichoice,\n      'options': [STR.multi_vertical, STR.singleno],\n    },\n    {\n      'type': 'MULTIRESPONSE_H',\n      'abbr': ['MRH'],\n      'name': STR.multiresponse,\n      'summary': STR.summary_multichoice,\n      'options': [STR.multi_horizontal, STR.singleno],\n    },\n    {\n      'type': 'MULTIRESPONSE_S',\n      'abbr': ['MRS'],\n      'name': STR.multiresponse,\n      'summary': STR.summary_multichoice,\n      'options': [STR.multi_vertical, STR.shuffle, STR.singleno],\n    },\n    {\n      'type': 'MULTIRESPONSE_HS',\n      'abbr': ['MRHS'],\n      'name': STR.multiresponse,\n      'summary': STR.summary_multichoice,\n      'options': [STR.multi_horizontal, STR.shuffle, STR.singleno],\n    },\n    {\n      'type': 'NUMERICAL',\n      'abbr': ['NM'],\n      'name': STR.numerical,\n      'summary': STR.summary_numerical,\n    },\n    {\n      'type': 'SHORTANSWER',\n      'abbr': ['SA', 'MW'],\n      'name': STR.shortanswer,\n      'summary': STR.summary_shortanswer,\n      'options': [STR.caseno],\n    },\n    {\n      'type': 'SHORTANSWER_C',\n      'abbr': ['SAC', 'MWC'],\n      'name': STR.shortanswer,\n      'summary': STR.summary_shortanswer,\n      'options': [STR.caseyes],\n    },\n  ];\n};\n\n/**\n * The editor instance that is injected via the onInit() function.\n *\n * @type tinymce.Editor\n * @private\n */\nlet _editor = null;\n\n/**\n * A reference to the currently open form.\n *\n * @param _form\n * @type Node\n * @private\n */\nlet _form = null;\n\n/**\n * An array containing the current answers options\n *\n * @param _answerdata\n * @type Array\n * @private\n */\nlet _answerdata = [];\n\n/**\n * The sub question type to be edited\n *\n * @param _qtype\n * @type String\n * @private\n */\nlet _qtype = null;\n\n/**\n * Remember the pos of the selected node.\n * @type {number}\n * @private\n */\nlet _selectedOffset = -1;\n\n/**\n * The maximum marks for the sub question\n *\n * @param _marks\n * @type Integer\n * @private\n */\nlet _marks = 1;\n\n/**\n * The modal dialogue to be displayed when designing the cloze question types.\n * @type Modal|null\n */\nlet _modal = null;\n\n/**\n * Inject the editor instance and add markers to the cloze question texts.\n * @param {tinymce.Editor} ed\n */\nconst onInit = function(ed) {\n  _editor = ed; // The current editor instance.\n  // Add the marker spans.\n  _addMarkers();\n  // And get the language strings.\n  getStr();\n};\n\n/**\n * Create the modal.\n * @return {Promise<void>}\n * @private\n */\nconst _createModal = async function() {\n  // Create the modal dialogue. Depending on whether we have a selected node or not, the content is different.\n  _modal = await ModalFactory.create({\n    title: STR.title,\n    templateContext: {\n      elementid: _editor.id\n    },\n    removeOnClose: true,\n    large: true,\n  });\n};\n\n/**\n * Display modal dialogue to edit a cloze question. Either a form is displayed to edit subquestion or a list\n * of possible questions is show.\n *\n * @method displayDialogue\n * @private\n */\nconst displayDialogue = async function() {\n  await _createModal();\n\n  // Resolve whether cursor is in a subquestion.\n  var subquestion = resolveSubquestion();\n  if (subquestion) {\n    // Subquestion found, remember which node of the marker nodes is selected.\n    _selectedOffset = indexOfNode(_editor.dom.select('.' + markerClass), subquestion);\n    _parseSubquestion(subquestion.innerHTML);\n    _setDialogueContent(_qtype);\n  } else {\n    // No subquestion found, no offset to remember.\n    _selectedOffset = -1;\n    _setDialogueContent();\n  }\n};\n\n/**\n * Search for cloze questions based on a regular expression. All the matching snippets at least contain the cloze\n * question definition. Although Moodle does not support encapsulated other functions within curly brackets, we\n * still try to find the correct closing bracket. The so extracted cloze question is surrounded by a marker span\n * element, that contains attributes so that the content inside the span cannot be modified by the editor (in the\n * textarea). Also, this makes it a lot easier to select the question, edit it in the dialogue and replace the result\n * in the existing text area.\n */\nconst _addMarkers = function() {\n\n  let content = _editor.getContent();\n  let newContent = '';\n\n  // Check if there is already a marker span. In this case we do not have to do anything.\n  if (content.indexOf(markerClass) !== -1) {\n    return;\n  }\n\n  let m;\n  do {\n    m = content.match(reQtype);\n    if (!m) { // No match of a cloze question, then we are done.\n      newContent += content;\n      break;\n    }\n    // Copy the current match to the new string preceded with the <span>.\n    const pos = content.indexOf(m[0]);\n    newContent += content.substring(0, pos) + markerSpan + content.substring(pos, pos + m[0].length);\n    content = content.substring(pos + m[0].length);\n\n    // Count the { in the string, should be just one (the very first one at position 0).\n    let level = (m[0].match(/\\{/g) || []).length;\n    if (level === 1) {\n      // If that's the case, we close the span and the cloze question text is the innerHTML of that marker span.\n      newContent += '</span>';\n      continue; // Look for the next matching cloze question.\n    }\n    // If there are more { than } in the string, then we did not find the corresponding } that belongs to the cloze string.\n    while (level > 1) {\n      const a = content.indexOf('{');\n      const b = content.indexOf('}');\n      if (a > -1 && b > -1 && a < b) { // The { is before another } so remember to find as many } until we back at level 1.\n        level++;\n        newContent = content.substring(0, a);\n        content = content.substring(a + 1);\n      } else if (b > -1) { // We found a closing } to a previously {.\n        newContent = content.substring(0, b);\n        content = content.substring(b + 1);\n        level--;\n      } else {\n        level = 1; // Should not happen, just to stop the endless loop.\n      }\n    }\n    newContent += '</span>';\n  } while (m);\n  _editor.setContent(newContent);\n};\n\n/**\n * Look for the marker span elements around a cloze question and remove that span. Also, the marker for a new\n * node to be inserted would be removed here as well.\n */\nconst _removeMarkers = function() {\n  for (const span of _editor.dom.select('span.' + markerClass)) {\n    _editor.dom.setOuterHTML(span, span.classList.contains('new') ? '' : span.innerHTML);\n  }\n};\n\n/**\n * When the source code view dialogue is show, we must remove the spans around the cloze question strings\n * from the editor content and add them again when the dialogue is closed.\n * Since this event is also triggered when the editor data is saved, we use this function to remove the\n * highlighting content at that time.\n * @param {object} content\n */\nconst onBeforeGetContent = function(content) {\n  if (!isNull(content.source_view) && content.source_view === true) {\n    // If the user clicks on 'Cancel' or the close button on the html\n    // source code dialog view, make sure we re-add the visual styling.\n    var onClose = function() {\n      _editor.off('close', onClose);\n      _addMarkers();\n    };\n    _editor.on('CloseWindow', () => {\n      onClose();\n    });\n    // Remove markers only if modal is not called, otherwise we will lose our new question marker.\n    if (!_modal) {\n      _removeMarkers();\n    }\n  }\n};\n\n/**\n * Fires when the form containing the editor is submitted.\n */\nconst onSubmit = function() {\n  _removeMarkers();\n};\n\n/**\n * Set the dialogue content for the tool, attaching any required events. 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'=' : ''),\n    tolerance: 0\n  };\n  _answerdata = one ? [blankAnswer] : [blankAnswer, blankAnswer, blankAnswer];\n  _modal.destroy();\n  // Our choice is stored in _qtype. We need to create the modal dialogue with the form now.\n  _createModal().then(() => {\n    _setDialogueContent(_qtype);\n    _form.querySelector('.' + CSS.ANSWER).focus();\n    return ''; // Make the linter happy.\n  }).catch(() => {});\n};\n\n/**\n * Parse question and set properties found.\n *\n * @method _parseSubquestion\n * @private\n * @param {String} question The question string\n */\nconst _parseSubquestion = function(question) {\n  _answerdata = []; // Flush answers to have an empty dialogue if something goes wrong parsing the question string.\n  const parts = reQtype.exec(question);\n  reQtype.lastIndex = 0; // Reset lastIndex so that the next match starts from the beginning of the question string.\n  if (!parts) {\n    return;\n  }\n  _marks = parts[1];\n  _qtype = parts[2];\n  // Convert the short notation to the long form e.g. SA to SHORTANSWER.\n  if (_qtype.length < 5) {\n    getQuestionTypes().forEach(l => {\n      for (const a of l.abbr) {\n        if (a === _qtype) {\n          _qtype = l.type;\n          return;\n        }\n      }\n    });\n  }\n  const answers = parts[7].match(/(\\\\.|[^~])*/g);\n  if (!answers) {\n    return;\n  }\n  answers.forEach(function(answer) {\n    const options = /^(%(-?[.0-9]+)%|(=?))((\\\\.|[^#])*)#?(.*)/.exec(answer);\n    if (options && options[4]) {\n      let frac = 0;\n      if (options[3]) {\n        frac = options[3] === '=' ? '=' : 100;\n      } else if (options[2]) {\n        frac = options[2];\n      }\n      if (_qtype === 'NUMERICAL' || _qtype === 'NM') {\n        const tolerance = /^([^:]*):?(.*)/.exec(options[4])[2] || 0;\n        _answerdata.push({\n          id: getUuid(),\n          answer: strdecode(options[4].replace(/:.*/, '')),\n          feedback: strdecode(options[6]),\n          tolerance: tolerance,\n          fraction: frac,\n          fractionOptions: getFractionOptions(frac),\n        });\n        return;\n      }\n      _answerdata.push({\n        answer: strdecode(options[4]),\n        id: getUuid(),\n        feedback: strdecode(options[6]),\n        fraction: frac,\n        fractionOptions: getFractionOptions(frac),\n      });\n    }\n  });\n};\n\n/**\n * Insert a new set of answer blanks below the button.\n *\n * @method _addAnswer\n * @param {Node} a Node that is the referred element\n * @private\n */\nconst _addAnswer = function(a) {\n  let index = indexOfNode(_form.querySelectorAll('.' + CSS.ADD), a);\n  if (index === -1) {\n    index = indexOfNode(_form.querySelectorAll('.' + CSS.ANSWER + ', .' + CSS.FEEDBACK), a);\n    if (index !== -1) {\n      index = Math.floor(index / 2) + 1;\n    }\n  }\n  let fraction = '';\n  if (a.closest('li')) {\n    fraction = a.closest('li').querySelector('.' + CSS.FRACTION).value;\n    index = indexOfNode(_form.querySelectorAll('li'), a.closest('li')) + 1;\n  }\n  let tolerance = 0;\n  if (a.closest('li') && a.closest('li').querySelector('.' + CSS.TOLERANCE)) {\n    tolerance = a.closest('li').querySelector('.' + CSS.TOLERANCE).value;\n  }\n  _getFormData();\n  _answerdata.splice(index, 0, {\n    id: getUuid(),\n    answer: '',\n    feedback: '',\n    fraction: fraction,\n    fractionOptions: getFractionOptions(fraction),\n    tolerance: tolerance\n  });\n  _setDialogueContent(_qtype, true);\n  _form.querySelectorAll('.' + CSS.ANSWER).item(index).focus();\n};\n\n/**\n * Delete set of answer next to the button.\n *\n * @method _deleteAnswer\n * @param {Node} a Node that is the referred element\n * @private\n */\nconst _deleteAnswer = function(a) {\n  let index = indexOfNode(_form.querySelectorAll('.' + CSS.DELETE), a);\n  if (index === -1) {\n    index = indexOfNode(_form.querySelectorAll('li'), a.closest('li'));\n  }\n  _getFormData();\n  _answerdata.splice(index, 1);\n  _setDialogueContent(_qtype, true);\n  const answers = _form.querySelectorAll('.' + CSS.ANSWER);\n  index = Math.min(index, answers.length - 1);\n  answers.item(index).focus();\n};\n\n/**\n * Lower answer option\n *\n * @method _lowerAnswer\n * @param {Node} a Node that is the referred element\n * @private\n */\nconst _lowerAnswer = function(a) {\n  const li = a.closest('li');\n  li.before(li.nextSibling);\n  li.querySelector('.' + CSS.ANSWER).focus();\n};\n\n/**\n * Raise answer option\n *\n * @method _raiseAnswer\n * @param {Node} a Node that is the referred element\n * @private\n */\nconst _raiseAnswer = function(a) {\n  const li = a.closest('li');\n  li.after(li.previousSibling);\n  li.querySelector('.' + CSS.ANSWER).focus();\n};\n\n/**\n * Reset and hide form.\n *\n * @method _cancel\n * @param {Event} e Event from button click\n * @private\n */\nconst _cancel = function(e) {\n  e.preventDefault();\n  // In case there is a marker where the new question should be inserted in the text it needs to be removed.\n  for (const span of _editor.dom.select('.' + markerClass + '.new')) {\n    span.remove();\n  }\n  _modal.destroy();\n  _editor.focus();\n  _modal = null;\n};\n\n/**\n * Insert question string into editor content and reset and hide form.\n *\n * @method _setSubquestion\n * @param {Event} e Event from button click\n * @private\n */\nconst _setSubquestion = function(e) {\n  e.preventDefault();\n  _getFormData();\n\n  // Build the parser function from the data, that is going to be placed into the editor content.\n  let question = '{' + _marks + ':' + _qtype + ':';\n\n  for (let i = 0; i < _answerdata.length; i++) {\n    question += _answerdata[i].fraction && !isNaN(_answerdata[i].fraction)\n      ? 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\ No newline at end of file
diff --git a/amd/src/ui.js b/amd/src/ui.js
index 34fa240..eb3e017 100644
--- a/amd/src/ui.js
+++ b/amd/src/ui.js
@@ -712,7 +712,7 @@ const _choiceHandler = function(e) {
     _setDialogueContent(_qtype);
     _form.querySelector('.' + CSS.ANSWER).focus();
     return ''; // Make the linter happy.
-  }).catch();
+  }).catch(() => {});
 };
 
 /**