diff --git a/amd/build/ui_ace_gapfiller.min.js b/amd/build/ui_ace_gapfiller.min.js
index 85b70a1c8..3ee068865 100644
--- a/amd/build/ui_ace_gapfiller.min.js
+++ b/amd/build/ui_ace_gapfiller.min.js
@@ -38,6 +38,6 @@
  * @copyright  Matthew Toohey, 2021, The University of Canterbury
  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
-define("qtype_coderunner/ui_ace_gapfiller",["jquery"],(function($){var Range;const validChars=/[ !"#$%&'()*+,`\-./0-9:;<=>?@A-Z\[\]\\^_a-z{}|~]/;function AceGapfillerUi(textareaId,w,h,uiParams){this.textArea=$(document.getElementById(textareaId));var wrapper=$(document.getElementById(textareaId+"_wrapper")),focused=this.textArea[0]===document.activeElement,lang=uiParams.lang,t=this;let code="";this.uiParams=uiParams,this.gaps=[],this.source=uiParams.ui_source||"globalextra",this.nextGapIndex=0,"globalextra"!==this.source&&"test0"!==this.source&&(alert("Invalid source for code in ui_ace_gapfiller"),this.source="globalextra"),code="globalextra"==this.source?this.textArea.attr("data-globalextra"):this.textArea.attr("data-test0");try{window.ace.require("ace/ext/language_tools"),Range=window.ace.require("ace/range").Range,this.modelist=window.ace.require("ace/ext/modelist"),this.enabled=!1,this.contents_changed=!1,this.capturingTab=!1,this.clickInProgress=!1,this.editNode=$("<div></div>"),this.editNode.css({resize:"none",height:h,width:"100%"}),this.editor=window.ace.edit(this.editNode.get(0)),this.textArea.prop("readonly")&&this.editor.setReadOnly(!0),this.editor.setOptions({displayIndentGuides:!1,dragEnabled:!1,enableBasicAutocompletion:!0,newLineMode:"unix"}),this.editor.$blockScrolling=1/0,uiParams.theme?this.editor.setTheme("ace/theme/"+uiParams.theme):this.editor.setTheme("ace/theme/textmate"),this.setLanguage(lang),this.setEventHandlers(this.textArea),this.captureTab(),this.editor.renderer.on("afterRender",(function(){var gutter=wrapper.find(".ace_gutter");gutter.hasClass("moodle-has-zindex")||(gutter.addClass("moodle-has-zindex"),focused&&(t.editor.focus(),t.editor.navigateFileEnd()),t.aceLabel=wrapper.find(".answerprompt"),t.aceLabel.attr("for","ace_"+textareaId),t.aceTextarea=wrapper.find(".ace_text-input"),t.aceTextarea.attr("id","ace_"+textareaId))})),this.createGaps(code),this.editor.commands.on("exec",(function(e){let cursor=t.editor.selection.getCursor(),commandName=e.command.name,selectionRange=t.editor.getSelectionRange(),gap=t.findCursorGap(cursor);if(commandName.startsWith("go")){if(null===gap||"gotoright"!==commandName||cursor.column!==gap.range.start.column+gap.textSize)return;t.editor.moveCursorTo(cursor.row,gap.range.end.column+1)}if(null===gap)"selectall"===commandName&&t.editor.selection.selectAll();else if("indent"===commandName){let nextGap=t.gaps[(gap.index+1)%t.gaps.length];t.editor.moveCursorTo(nextGap.range.start.row,nextGap.range.start.column+nextGap.textSize),t.editor.selection.clearSelection()}else if("selectall"===commandName)t.editor.selection.setSelectionRange(new Range(gap.range.start.row,gap.range.start.column,gap.range.start.row,gap.range.end.column),!1);else if(t.editor.selection.isEmpty()){if("insertstring"===commandName){let char=e.args;validChars.test(char)&&gap.insertChar(t.gaps,cursor,char)}else"backspace"===commandName?cursor.column>gap.range.start.column&&gap.textSize>0&&gap.deleteChar(t.gaps,{row:cursor.row,column:cursor.column-1}):"del"===commandName&&cursor.column<gap.range.start.column+gap.textSize&&gap.textSize>0&&gap.deleteChar(t.gaps,cursor);t.editor.selection.clearSelection()}else if(!t.editor.selection.isEmpty()&&gap.cursorInGap(selectionRange.start)&&gap.cursorInGap(selectionRange.end)&&("insertstring"!==commandName&&"backspace"!==commandName&&"del"!==commandName&&"paste"!==commandName&&"cut"!==commandName||(gap.deleteRange(t.gaps,selectionRange.start.column,selectionRange.end.column),t.editor.selection.clearSelection()),"insertstring"===commandName)){let char=e.args;validChars.test(char)&&gap.insertChar(t.gaps,selectionRange.start,char)}null!==gap&&"paste"===commandName&&gap.insertText(t.gaps,selectionRange.start.column,e.args.text),e.preventDefault(),e.stopPropagation()})),t.editor.selection.on("changeCursor",(function(){let cursor=t.editor.selection.getCursor(),gap=t.findCursorGap(cursor);null!==gap&&cursor.column>gap.range.start.column+gap.textSize&&t.editor.moveCursorTo(gap.range.start.row,gap.range.start.column+gap.textSize)})),this.gapToSelect=null,this.editor.on("tripleclick",(function(e){let cursor=t.editor.selection.getCursor(),gap=t.findCursorGap(cursor);null!==gap&&(t.editor.selection.setSelectionRange(new Range(gap.range.start.row,gap.range.start.column,gap.range.start.row,gap.range.end.column),!1),t.gapToSelect=gap,e.preventDefault(),e.stopPropagation())})),this.editor.on("click",(function(e){t.gapToSelect&&(t.editor.moveCursorTo(t.gapToSelect.range.start.row,t.gapToSelect.range.start.column+t.gapToSelect.textSize),t.gapToSelect=null,e.preventDefault(),e.stopPropagation())})),this.fail=!1,this.reload()}catch(err){this.fail=!0}}function Gap(editor,row,column,minWidth){let maxWidth=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0;this.editor=editor,this.minWidth=minWidth,this.maxWidth=maxWidth,this.range=new Range(row,column,row,column+minWidth),this.textSize=0,this.editor.session.addMarker(this.range,"ace-gap-outline","text",!0),this.editor.session.addMarker(this.range,"ace-gap-background","text",!1)}return AceGapfillerUi.prototype.createGaps=function(code){function reEscape(s){for(var c,result="",i=0;i<s.length;i++){c=s[i];for(var j=0;j<"{[(*+\\".length;j++)c==="{[(*+\\"[j]&&(c="\\"+c);result+=c}return result}this.gaps=[];let lines=code.split(/\r?\n/),sepLeft=reEscape("{["),sepRight=reEscape("]}"),splitter=new RegExp(sepLeft+" *((?:\\d+)|(?:\\d+- *\\d+)) *"+sepRight),editorContent="";for(let i=0;i<lines.length;i++){let bits=lines[i].split(splitter);editorContent+=bits[0];let columnPos=bits[0].length;for(let j=1;j<bits.length;j+=2){let values=bits[j].split("-"),minWidth=parseInt(values[0]),maxWidth=values.length>1?parseInt(values[1]):1/0,gap=new Gap(this.editor,i,columnPos,minWidth,maxWidth);gap.index=this.nextGapIndex,this.nextGapIndex+=1,this.gaps.push(gap),columnPos+=minWidth,editorContent+=" ".repeat(minWidth),j+1<bits.length&&(editorContent+=bits[j+1],columnPos+=bits[j+1].length)}i<lines.length-1&&(editorContent+="\n")}this.editor.session.setValue(editorContent)},AceGapfillerUi.prototype.findCursorGap=function(cursor){for(let i=0;i<this.gaps.length;i++){let gap=this.gaps[i];if(gap.cursorInGap(cursor))return gap}return null},AceGapfillerUi.prototype.failed=function(){return this.fail},AceGapfillerUi.prototype.failMessage=function(){return"ace_ui_notready"},AceGapfillerUi.prototype.sync=function(){if(this.fail)return;let serialisation=[],empty=!0;for(let i=0;i<this.gaps.length;i++){let value=this.gaps[i].getText();serialisation.push(value),""!==value&&(empty=!1)}empty?this.textArea.val(""):this.textArea.val(JSON.stringify(serialisation))},AceGapfillerUi.prototype.syncIntervalSecs=()=>2,AceGapfillerUi.prototype.reload=function(){let content=this.textArea.val();if(content)try{let values=JSON.parse(content);for(let i=0;i<this.gaps.length;i++){let value=i<values.length?values[i]:"???";this.gaps[i].insertText(this.gaps,this.gaps[i].range.start.column,value)}}catch(e){}},AceGapfillerUi.prototype.setLanguage=function(language){var session=this.editor.getSession(),mode=this.findMode(language);mode&&session.setMode(mode.mode)},AceGapfillerUi.prototype.getElement=function(){return this.editNode},AceGapfillerUi.prototype.captureTab=function(){this.capturingTab=!0,this.editor.commands.bindKeys({Tab:"indent","Shift-Tab":"outdent"})},AceGapfillerUi.prototype.releaseTab=function(){this.capturingTab=!1,this.editor.commands.bindKeys({Tab:null,"Shift-Tab":null})},AceGapfillerUi.prototype.setEventHandlers=function(){var t=this;this.editor.getSession().on("change",(function(){t.contents_changed=!0})),this.editor.on("blur",(function(){t.contents_changed&&t.textArea.trigger("change")})),this.editor.on("mousedown",(function(){t.clickInProgress=!0})),this.editor.on("focus",(function(){t.clickInProgress?t.captureTab():t.releaseTab()})),this.editor.on("click",(function(){t.clickInProgress=!1})),this.editor.container.addEventListener("keydown",(function(e){void 0!==e.which&&0===e.which||(77===e.keyCode&&e.ctrlKey&&!e.altKey?(t.capturingTab?t.releaseTab():t.captureTab(),e.preventDefault()):27===e.keyCode?t.releaseTab():e.shiftKey||e.ctrlKey||e.altKey||9==e.keyCode||t.captureTab())}),!0)},AceGapfillerUi.prototype.destroy=function(){var focused;this.sync(),this.fail||(focused=this.editor.isFocused(),this.editor.destroy(),$(this.editNode).remove(),focused&&(this.textArea.focus(),this.textArea[0].selectionStart=this.textArea[0].value.length))},AceGapfillerUi.prototype.hasFocus=function(){return this.editor.isFocused()},AceGapfillerUi.prototype.findMode=function(language){var candidate,filename,result,candidates,nameMap={octave:"matlab",nodejs:"javascript","c#":"cs"};if("string"==typeof language){language.toLowerCase()in nameMap&&(language=nameMap[language.toLowerCase()]),candidates=[language,language.replace(/\d+$/,"")];for(var i=0;i<candidates.length;i++)if(filename="input."+(candidate=candidates[i]),(result=this.modelist.modesByName[candidate]||this.modelist.modesByName[candidate.toLowerCase()]||this.modelist.getModeForPath(filename)||this.modelist.getModeForPath(filename.toLowerCase()))&&"text"!==result.name)return result}},AceGapfillerUi.prototype.resize=function(w,h){this.editNode.outerHeight(h),this.editNode.outerWidth(w),this.editor.resize()},Gap.prototype.cursorInGap=function(cursor){return cursor.row>=this.range.start.row&&cursor.column>=this.range.start.column&&cursor.row<=this.range.end.row&&cursor.column<=this.range.end.column},Gap.prototype.getWidth=function(){return this.range.end.column-this.range.start.column},Gap.prototype.changeWidth=function(gaps,delta){this.range.end.column+=delta;for(let i=0;i<gaps.length;i++){let other=gaps[i];other.range.start.row===this.range.start.row&&other.range.start.column>this.range.end.column&&(other.range.start.column+=delta,other.range.end.column+=delta)}this.editor.$onChangeBackMarker(),this.editor.$onChangeFrontMarker()},Gap.prototype.insertChar=function(gaps,pos,char){this.textSize===this.getWidth()&&this.getWidth()<this.maxWidth?(this.changeWidth(gaps,1),this.textSize+=1,this.editor.session.insert(pos,char)):this.textSize<this.maxWidth&&(this.editor.session.remove(new Range(pos.row,this.range.end.column-1,pos.row,this.range.end.column)),this.textSize+=1,this.editor.session.insert(pos,char))},Gap.prototype.deleteChar=function(gaps,pos){this.textSize-=1,this.editor.session.remove(new Range(pos.row,pos.column,pos.row,pos.column+1)),this.textSize>=this.minWidth?this.changeWidth(gaps,-1):this.editor.session.insert({row:pos.row,column:this.range.end.column-1}," ")},Gap.prototype.deleteRange=function(gaps,start,end){for(let i=start;i<end;i++)start<this.range.start.column+this.textSize&&this.deleteChar(gaps,{row:this.range.start.row,column:start})},Gap.prototype.insertText=function(gaps,start,text){for(let i=0;i<text.length;i++)start+i<this.range.start.column+this.maxWidth&&this.insertChar(gaps,{row:this.range.start.row,column:start+i},text[i])},Gap.prototype.getText=function(){return this.editor.session.getTextRange(new Range(this.range.start.row,this.range.start.column,this.range.end.row,this.range.start.column+this.textSize))},{Constructor:AceGapfillerUi}}));
+define("qtype_coderunner/ui_ace_gapfiller",["jquery"],(function($){var Range;const validChars=/[ !"#$%&'()*+,`\-./0-9\p{L}:;<=>?@\[\]\\^_{}|~]/u;function AceGapfillerUi(textareaId,w,h,uiParams){this.textArea=$(document.getElementById(textareaId));var wrapper=$(document.getElementById(textareaId+"_wrapper")),focused=this.textArea[0]===document.activeElement,lang=uiParams.lang,t=this;let code="";this.uiParams=uiParams,this.gaps=[],this.source=uiParams.ui_source||"globalextra",this.nextGapIndex=0,"globalextra"!==this.source&&"test0"!==this.source&&(alert("Invalid source for code in ui_ace_gapfiller"),this.source="globalextra"),code="globalextra"==this.source?this.textArea.attr("data-globalextra"):this.textArea.attr("data-test0");try{window.ace.require("ace/ext/language_tools"),Range=window.ace.require("ace/range").Range,this.modelist=window.ace.require("ace/ext/modelist"),this.enabled=!1,this.contents_changed=!1,this.capturingTab=!1,this.clickInProgress=!1,this.editNode=$("<div></div>"),this.editNode.css({resize:"none",height:h,width:"100%"}),this.editor=window.ace.edit(this.editNode.get(0)),this.textArea.prop("readonly")&&this.editor.setReadOnly(!0),this.editor.setOptions({displayIndentGuides:!1,dragEnabled:!1,enableBasicAutocompletion:!0,newLineMode:"unix"}),this.editor.$blockScrolling=1/0,uiParams.theme?this.editor.setTheme("ace/theme/"+uiParams.theme):this.editor.setTheme("ace/theme/textmate"),this.setLanguage(lang),this.setEventHandlers(this.textArea),this.captureTab(),this.editor.renderer.on("afterRender",(function(){var gutter=wrapper.find(".ace_gutter");gutter.hasClass("moodle-has-zindex")||(gutter.addClass("moodle-has-zindex"),focused&&(t.editor.focus(),t.editor.navigateFileEnd()),t.aceLabel=wrapper.find(".answerprompt"),t.aceLabel.attr("for","ace_"+textareaId),t.aceTextarea=wrapper.find(".ace_text-input"),t.aceTextarea.attr("id","ace_"+textareaId))})),this.createGaps(code),this.editor.commands.on("exec",(function(e){let cursor=t.editor.selection.getCursor(),commandName=e.command.name,selectionRange=t.editor.getSelectionRange(),gap=t.findCursorGap(cursor);if(commandName.startsWith("go")){if(null===gap||"gotoright"!==commandName||cursor.column!==gap.range.start.column+gap.textSize)return;t.editor.moveCursorTo(cursor.row,gap.range.end.column+1)}if(null===gap)"selectall"===commandName&&t.editor.selection.selectAll();else if("indent"===commandName){let nextGap=t.gaps[(gap.index+1)%t.gaps.length];t.editor.moveCursorTo(nextGap.range.start.row,nextGap.range.start.column+nextGap.textSize),t.editor.selection.clearSelection()}else if("selectall"===commandName)t.editor.selection.setSelectionRange(new Range(gap.range.start.row,gap.range.start.column,gap.range.start.row,gap.range.end.column),!1);else if(t.editor.selection.isEmpty()){if("insertstring"===commandName){let char=e.args;validChars.test(char)&&gap.insertChar(t.gaps,cursor,char)}else"backspace"===commandName?cursor.column>gap.range.start.column&&gap.textSize>0&&gap.deleteChar(t.gaps,{row:cursor.row,column:cursor.column-1}):"del"===commandName&&cursor.column<gap.range.start.column+gap.textSize&&gap.textSize>0&&gap.deleteChar(t.gaps,cursor);t.editor.selection.clearSelection()}else if(!t.editor.selection.isEmpty()&&gap.cursorInGap(selectionRange.start)&&gap.cursorInGap(selectionRange.end)&&("insertstring"!==commandName&&"backspace"!==commandName&&"del"!==commandName&&"paste"!==commandName&&"cut"!==commandName||(gap.deleteRange(t.gaps,selectionRange.start.column,selectionRange.end.column),t.editor.selection.clearSelection()),"insertstring"===commandName)){let char=e.args;validChars.test(char)&&gap.insertChar(t.gaps,selectionRange.start,char)}null!==gap&&"paste"===commandName&&gap.insertText(t.gaps,selectionRange.start.column,e.args.text),e.preventDefault(),e.stopPropagation()})),t.editor.selection.on("changeCursor",(function(){let cursor=t.editor.selection.getCursor(),gap=t.findCursorGap(cursor);null!==gap&&cursor.column>gap.range.start.column+gap.textSize&&t.editor.moveCursorTo(gap.range.start.row,gap.range.start.column+gap.textSize)})),this.gapToSelect=null,this.editor.on("tripleclick",(function(e){let cursor=t.editor.selection.getCursor(),gap=t.findCursorGap(cursor);null!==gap&&(t.editor.selection.setSelectionRange(new Range(gap.range.start.row,gap.range.start.column,gap.range.start.row,gap.range.end.column),!1),t.gapToSelect=gap,e.preventDefault(),e.stopPropagation())})),this.editor.on("click",(function(e){t.gapToSelect&&(t.editor.moveCursorTo(t.gapToSelect.range.start.row,t.gapToSelect.range.start.column+t.gapToSelect.textSize),t.gapToSelect=null,e.preventDefault(),e.stopPropagation())})),this.fail=!1,this.reload()}catch(err){this.fail=!0}}function Gap(editor,row,column,minWidth){let maxWidth=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0;this.editor=editor,this.minWidth=minWidth,this.maxWidth=maxWidth,this.range=new Range(row,column,row,column+minWidth),this.textSize=0,this.editor.session.addMarker(this.range,"ace-gap-outline","text",!0),this.editor.session.addMarker(this.range,"ace-gap-background","text",!1)}return AceGapfillerUi.prototype.createGaps=function(code){function reEscape(s){for(var c,result="",i=0;i<s.length;i++){c=s[i];for(var j=0;j<"{[(*+\\".length;j++)c==="{[(*+\\"[j]&&(c="\\"+c);result+=c}return result}this.gaps=[];let lines=code.split(/\r?\n/),sepLeft=reEscape("{["),sepRight=reEscape("]}"),splitter=new RegExp(sepLeft+" *((?:\\d+)|(?:\\d+- *\\d+)) *"+sepRight),editorContent="";for(let i=0;i<lines.length;i++){let bits=lines[i].split(splitter);editorContent+=bits[0];let columnPos=bits[0].length;for(let j=1;j<bits.length;j+=2){let values=bits[j].split("-"),minWidth=parseInt(values[0]),maxWidth=values.length>1?parseInt(values[1]):1/0,gap=new Gap(this.editor,i,columnPos,minWidth,maxWidth);gap.index=this.nextGapIndex,this.nextGapIndex+=1,this.gaps.push(gap),columnPos+=minWidth,editorContent+=" ".repeat(minWidth),j+1<bits.length&&(editorContent+=bits[j+1],columnPos+=bits[j+1].length)}i<lines.length-1&&(editorContent+="\n")}this.editor.session.setValue(editorContent)},AceGapfillerUi.prototype.findCursorGap=function(cursor){for(let i=0;i<this.gaps.length;i++){let gap=this.gaps[i];if(gap.cursorInGap(cursor))return gap}return null},AceGapfillerUi.prototype.failed=function(){return this.fail},AceGapfillerUi.prototype.failMessage=function(){return"ace_ui_notready"},AceGapfillerUi.prototype.sync=function(){if(this.fail)return;let serialisation=[],empty=!0;for(let i=0;i<this.gaps.length;i++){let value=this.gaps[i].getText();serialisation.push(value),""!==value&&(empty=!1)}empty?this.textArea.val(""):this.textArea.val(JSON.stringify(serialisation))},AceGapfillerUi.prototype.syncIntervalSecs=()=>2,AceGapfillerUi.prototype.reload=function(){let content=this.textArea.val();if(content)try{let values=JSON.parse(content);for(let i=0;i<this.gaps.length;i++){let value=i<values.length?values[i]:"???";this.gaps[i].insertText(this.gaps,this.gaps[i].range.start.column,value)}}catch(e){}},AceGapfillerUi.prototype.setLanguage=function(language){var session=this.editor.getSession(),mode=this.findMode(language);mode&&session.setMode(mode.mode)},AceGapfillerUi.prototype.getElement=function(){return this.editNode},AceGapfillerUi.prototype.captureTab=function(){this.capturingTab=!0,this.editor.commands.bindKeys({Tab:"indent","Shift-Tab":"outdent"})},AceGapfillerUi.prototype.releaseTab=function(){this.capturingTab=!1,this.editor.commands.bindKeys({Tab:null,"Shift-Tab":null})},AceGapfillerUi.prototype.setEventHandlers=function(){var t=this;this.editor.getSession().on("change",(function(){t.contents_changed=!0})),this.editor.on("blur",(function(){t.contents_changed&&t.textArea.trigger("change")})),this.editor.on("mousedown",(function(){t.clickInProgress=!0})),this.editor.on("focus",(function(){t.clickInProgress?t.captureTab():t.releaseTab()})),this.editor.on("click",(function(){t.clickInProgress=!1})),this.editor.container.addEventListener("keydown",(function(e){void 0!==e.which&&0===e.which||(77===e.keyCode&&e.ctrlKey&&!e.altKey?(t.capturingTab?t.releaseTab():t.captureTab(),e.preventDefault()):27===e.keyCode?t.releaseTab():e.shiftKey||e.ctrlKey||e.altKey||9==e.keyCode||t.captureTab())}),!0)},AceGapfillerUi.prototype.destroy=function(){var focused;this.sync(),this.fail||(focused=this.editor.isFocused(),this.editor.destroy(),$(this.editNode).remove(),focused&&(this.textArea.focus(),this.textArea[0].selectionStart=this.textArea[0].value.length))},AceGapfillerUi.prototype.hasFocus=function(){return this.editor.isFocused()},AceGapfillerUi.prototype.findMode=function(language){var candidate,filename,result,candidates,nameMap={octave:"matlab",nodejs:"javascript","c#":"cs"};if("string"==typeof language){language.toLowerCase()in nameMap&&(language=nameMap[language.toLowerCase()]),candidates=[language,language.replace(/\d+$/,"")];for(var i=0;i<candidates.length;i++)if(filename="input."+(candidate=candidates[i]),(result=this.modelist.modesByName[candidate]||this.modelist.modesByName[candidate.toLowerCase()]||this.modelist.getModeForPath(filename)||this.modelist.getModeForPath(filename.toLowerCase()))&&"text"!==result.name)return result}},AceGapfillerUi.prototype.resize=function(w,h){this.editNode.outerHeight(h),this.editNode.outerWidth(w),this.editor.resize()},Gap.prototype.cursorInGap=function(cursor){return cursor.row>=this.range.start.row&&cursor.column>=this.range.start.column&&cursor.row<=this.range.end.row&&cursor.column<=this.range.end.column},Gap.prototype.getWidth=function(){return this.range.end.column-this.range.start.column},Gap.prototype.changeWidth=function(gaps,delta){this.range.end.column+=delta;for(let i=0;i<gaps.length;i++){let other=gaps[i];other.range.start.row===this.range.start.row&&other.range.start.column>this.range.end.column&&(other.range.start.column+=delta,other.range.end.column+=delta)}this.editor.$onChangeBackMarker(),this.editor.$onChangeFrontMarker()},Gap.prototype.insertChar=function(gaps,pos,char){this.textSize===this.getWidth()&&this.getWidth()<this.maxWidth?(this.changeWidth(gaps,1),this.textSize+=1,this.editor.session.insert(pos,char)):this.textSize<this.maxWidth&&(this.editor.session.remove(new Range(pos.row,this.range.end.column-1,pos.row,this.range.end.column)),this.textSize+=1,this.editor.session.insert(pos,char))},Gap.prototype.deleteChar=function(gaps,pos){this.textSize-=1,this.editor.session.remove(new Range(pos.row,pos.column,pos.row,pos.column+1)),this.textSize>=this.minWidth?this.changeWidth(gaps,-1):this.editor.session.insert({row:pos.row,column:this.range.end.column-1}," ")},Gap.prototype.deleteRange=function(gaps,start,end){for(let i=start;i<end;i++)start<this.range.start.column+this.textSize&&this.deleteChar(gaps,{row:this.range.start.row,column:start})},Gap.prototype.insertText=function(gaps,start,text){for(let i=0;i<text.length;i++)start+i<this.range.start.column+this.maxWidth&&this.insertChar(gaps,{row:this.range.start.row,column:start+i},text[i])},Gap.prototype.getText=function(){return this.editor.session.getTextRange(new Range(this.range.start.row,this.range.start.column,this.range.end.row,this.range.start.column+this.textSize))},{Constructor:AceGapfillerUi}}));
 
 //# sourceMappingURL=ui_ace_gapfiller.min.js.map
\ No newline at end of file
diff --git a/amd/build/ui_ace_gapfiller.min.js.map b/amd/build/ui_ace_gapfiller.min.js.map
index 6a666b089..ee12fb7bb 100644
--- a/amd/build/ui_ace_gapfiller.min.js.map
+++ b/amd/build/ui_ace_gapfiller.min.js.map
@@ -1 +1 @@
-{"version":3,"file":"ui_ace_gapfiller.min.js","sources":["../src/ui_ace_gapfiller.js"],"sourcesContent":["// This file is part of Moodle - http://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 util.details.\n//\n// You should have received a copy of the GNU General Public License\n// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.\n\n/**\n * Implementation of the ace_gapfiller_ui user interface plugin. For overall details\n * of the UI plugin architecture, see userinterfacewrapper.js.\n *\n * This plugin uses the usual ace editor but only makes some portions of the text editable.\n * The pre-formatted text is supplied by the question author in either the\n * \"globalextra\" field or the testcode field of the first test case, according\n * to the ui parameter ui_source (default: globalextra).\n * Editable \"gaps\" are inserted into the ace editor at specified points.\n * It is intended primarily for use with coding questions where the answerbox presents\n * the students with code that has smallish bits missing.\n *\n * The locations within the globalextra text at which the gaps are\n * to be inserted are denoted by \"tags\" of the form\n *\n *     {[ size ]}\n *\n * or\n *\n *     {[ size-maxSize ]}\n *\n * where size and maxSize are integer literals. These respectively inject a \"gap\" into\n * the editor of the specified size and maxSize. If maxSize is not specified then the\n * \"gap\" has no maximum size and can grow without bound.\n *\n * The serialisation of the answer box contents, i.e. the text that\n * copied back into the textarea for submissions\n * as the answer, is simply a list of all the field values (strings), in order.\n *\n * As a special case of the serialisation, if the value list is empty, the\n * serialisation itself is the empty string.\n *\n * The delimiters for the gap tags are by default '{[' and\n * ']}'.\n *\n * @module qtype_coderunner/ui_ace_gapfiller\n * @copyright  Richard Lobb, 2019, The University of Canterbury\n * @copyright  Matthew Toohey, 2021, The University of Canterbury\n * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later\n */\n\ndefine(['jquery'], function($) {\n\n    var Range;  // Can't load this until ace has loaded.\n    const fillChar = \" \";\n    const validChars = /[ !\"#$%&'()*+,`\\-./0-9:;<=>?@A-Z\\[\\]\\\\^_a-z{}|~]/;\n    const ACE_LIGHT_THEME = 'ace/theme/textmate';\n\n    /**\n     * Constructor for the Ace interface object\n     * @param {string} textareaId The ID of the textarea html element.\n     * @param {int} w The width of the text area in pixels.\n     * @param {int} h The height of the text area in pixels.\n     * @param {object} uiParams The UI parameter specifier object.\n     */\n    function AceGapfillerUi(textareaId, w, h, uiParams) {\n        this.textArea = $(document.getElementById(textareaId));\n        var wrapper = $(document.getElementById(textareaId + '_wrapper')),\n            focused = this.textArea[0] === document.activeElement,\n            lang = uiParams.lang,\n            t = this;  // For embedded callbacks.\n\n        let code = \"\";\n        this.uiParams = uiParams;\n        this.gaps = [];\n        this.source = uiParams.ui_source || 'globalextra';\n        this.nextGapIndex = 0;\n        if (this.source !== 'globalextra' && this.source !== 'test0') {\n            alert('Invalid source for code in ui_ace_gapfiller');\n            this.source = 'globalextra';\n        }\n        if (this.source == 'globalextra') {\n            code = this.textArea.attr('data-globalextra');\n        } else {\n            code = this.textArea.attr('data-test0');\n        }\n\n        try {\n            window.ace.require(\"ace/ext/language_tools\");\n            Range = window.ace.require(\"ace/range\").Range;\n            this.modelist = window.ace.require('ace/ext/modelist');\n\n            this.enabled = false;\n            this.contents_changed = false;\n            this.capturingTab = false;\n            this.clickInProgress = false;\n\n            this.editNode = $(\"<div></div>\"); // Ace editor manages this\n            this.editNode.css({\n                resize: 'none',\n                height: h,\n                width: \"100%\"\n            });\n\n            this.editor = window.ace.edit(this.editNode.get(0));\n            if (this.textArea.prop('readonly')) {\n                this.editor.setReadOnly(true);\n            }\n\n            this.editor.setOptions({\n                displayIndentGuides: false,\n                dragEnabled: false,\n                enableBasicAutocompletion: true,\n                newLineMode: \"unix\",\n            });\n            this.editor.$blockScrolling = Infinity;\n\n            // Use the uiParams theme if provided else use light.\n            if (uiParams.theme) {\n                this.editor.setTheme(\"ace/theme/\" + uiParams.theme);\n            } else {\n                this.editor.setTheme(ACE_LIGHT_THEME);\n            }\n\n            this.setLanguage(lang);\n\n            this.setEventHandlers(this.textArea);\n            this.captureTab();\n\n            // Try to tell Moodle about parts of the editor with z-index.\n            // It is hard to be sure if this is complete. ACE adds all its CSS using JavaScript.\n            // Here, we just deal with things that are known to cause a problem.\n            // Can't do these operations until editor has rendered. So ...\n            this.editor.renderer.on('afterRender', function() {\n                var gutter =  wrapper.find('.ace_gutter');\n                if (gutter.hasClass('moodle-has-zindex')) {\n                    return;  // So we only do what follows once.\n                }\n                gutter.addClass('moodle-has-zindex');\n\n                if (focused) {\n                    t.editor.focus();\n                    t.editor.navigateFileEnd();\n                }\n                t.aceLabel = wrapper.find('.answerprompt');\n                t.aceLabel.attr('for', 'ace_' + textareaId);\n\n                t.aceTextarea = wrapper.find('.ace_text-input');\n                t.aceTextarea.attr('id', 'ace_' + textareaId);\n            });\n\n            this.createGaps(code);\n\n            // Intercept commands sent to ace.\n            this.editor.commands.on(\"exec\", function(e) {\n                let cursor = t.editor.selection.getCursor();\n                let commandName = e.command.name;\n                let selectionRange = t.editor.getSelectionRange();\n\n                let gap = t.findCursorGap(cursor);\n\n                if (commandName.startsWith(\"go\")) {  // If command just moves the cursor then do nothing.\n                    if (gap !== null && commandName === \"gotoright\" && cursor.column === gap.range.start.column+gap.textSize) {\n                        // In this case we jump out of gap over the empty space that contains nothing that the user has entered.\n                        t.editor.moveCursorTo(cursor.row, gap.range.end.column+1);\n                    } else {\n                        return;\n                    }\n                }\n\n                if (gap === null) {\n                    // Not in a gap\n                    if (commandName === \"selectall\") {\n                        t.editor.selection.selectAll();\n                    }\n\n                } else if (commandName === \"indent\") {\n                    // Instead of indenting, move to next gap.\n                    let nextGap = t.gaps[(gap.index+1) % t.gaps.length];\n                    t.editor.moveCursorTo(nextGap.range.start.row, nextGap.range.start.column+nextGap.textSize);\n                    t.editor.selection.clearSelection(); // Clear selection.\n\n                } else if (commandName === \"selectall\") {\n                    // Select all text in a gap if we are in a gap.\n                    t.editor.selection.setSelectionRange(new Range(gap.range.start.row,\n                                                         gap.range.start.column,\n                                                         gap.range.start.row,\n                                                         gap.range.end.column), false);\n\n                } else if (t.editor.selection.isEmpty()) {\n                    // User is not selecting multiple characters.\n                    if (commandName === \"insertstring\") {\n                        let char = e.args;\n                        // Only allow user to insert 'valid' chars.\n                        if (validChars.test(char)) {\n                            gap.insertChar(t.gaps, cursor, char);\n                        }\n                    } else if (commandName === \"backspace\") {\n                        // Only delete chars that are actually in the gap.\n                        if (cursor.column > gap.range.start.column && gap.textSize > 0) {\n                            gap.deleteChar(t.gaps, {row: cursor.row, column: cursor.column-1});\n                        }\n                    } else if (commandName === \"del\") {\n                        // Only delete chars that are actually in the gap.\n                        if (cursor.column < gap.range.start.column + gap.textSize && gap.textSize > 0) {\n                            gap.deleteChar(t.gaps, cursor);\n                        }\n                    }\n                    t.editor.selection.clearSelection(); // Keep selection clear.\n\n                } else if (!t.editor.selection.isEmpty() && gap.cursorInGap(selectionRange.start)\n                           && gap.cursorInGap(selectionRange.end)) {\n                    // User is selecting multiple characters and is in a gap.\n\n                    // These are the commands that remove the selected text.\n                    if (commandName === \"insertstring\" || commandName === \"backspace\"\n                        || commandName === \"del\" || commandName === \"paste\"\n                        || commandName === \"cut\") {\n\n                        gap.deleteRange(t.gaps, selectionRange.start.column, selectionRange.end.column);\n                        t.editor.selection.clearSelection(); // Clear selection.\n                    }\n\n                    if (commandName === \"insertstring\") {\n                        let char = e.args;\n                        if (validChars.test(char)) {\n                            gap.insertChar(t.gaps, selectionRange.start, char);\n                        }\n                    }\n                }\n\n                // Paste text into gap.\n                if (gap !== null && commandName === \"paste\") {\n                    gap.insertText(t.gaps, selectionRange.start.column, e.args.text);\n                }\n\n                e.preventDefault();\n                e.stopPropagation();\n            });\n\n            // Move cursor to where it should be if we click on a gap.\n            t.editor.selection.on('changeCursor', function() {\n                let cursor = t.editor.selection.getCursor();\n                let gap = t.findCursorGap(cursor);\n                if (gap !== null) {\n                    if (cursor.column > gap.range.start.column+gap.textSize) {\n                        t.editor.moveCursorTo(gap.range.start.row, gap.range.start.column+gap.textSize);\n                    }\n                }\n            });\n\n            this.gapToSelect = null;    // Stores gap that has been selected with triple click.\n\n            // Select all text in gap on triple click within gap.\n            this.editor.on(\"tripleclick\", function(e) {\n                let cursor = t.editor.selection.getCursor();\n                let gap = t.findCursorGap(cursor);\n                if (gap !== null) {\n                    t.editor.selection.setSelectionRange(new Range(gap.range.start.row,\n                                                                   gap.range.start.column,\n                                                                   gap.range.start.row,\n                                                                   gap.range.end.column), false);\n                    t.gapToSelect = gap;\n                    e.preventDefault();\n                    e.stopPropagation();\n                }\n            });\n\n            // Annoying hack to ensure the tripple click thing works.\n            this.editor.on(\"click\", function(e) {\n                if (t.gapToSelect) {\n                    t.editor.moveCursorTo(t.gapToSelect.range.start.row, t.gapToSelect.range.start.column+t.gapToSelect.textSize);\n                    t.gapToSelect = null;\n                    e.preventDefault();\n                    e.stopPropagation();\n                }\n            });\n\n            this.fail = false;\n            this.reload();\n        }\n        catch(err) {\n            // Something ugly happened. Probably ace editor hasn't been loaded\n            this.fail = true;\n        }\n    }\n\n    /**\n     * The method that creates the gaps at all places containing the appropriate\n     * marker (default {[ ... ]}).\n     * Do not call until after this.editor has been instantiated.\n     * @param {string} code The initial raw text code\n     */\n    AceGapfillerUi.prototype.createGaps = function(code) {\n        this.gaps = [];\n        /**\n         * Escape special characters in a given string.\n         * @param {string} s The input string.\n         * @returns {string} The updated string, with escaped specials.\n         */\n        function reEscape(s) {\n            var c, specials = '{[(*+\\\\', result='';\n            for (var i = 0; i < s.length; i++) {\n                c = s[i];\n                for (var j = 0; j < specials.length; j++) {\n                    if (c === specials[j]) {\n                        c = '\\\\' + c;\n                    }\n                }\n                result += c;\n            }\n            return result;\n        }\n\n        let lines = code.split(/\\r?\\n/);\n\n        let sepLeft = reEscape('{[');\n        let sepRight = reEscape(']}');\n        let splitter = new RegExp(sepLeft + ' *((?:\\\\d+)|(?:\\\\d+- *\\\\d+)) *' + sepRight);\n\n        let editorContent = \"\";\n        for (let i = 0; i < lines.length; i++) {\n            let bits = lines[i].split(splitter);\n            editorContent += bits[0];\n\n            let columnPos = bits[0].length;\n            for (let j = 1; j < bits.length; j += 2) {\n                let values = bits[j].split('-');\n                let minWidth = parseInt(values[0]);\n                let maxWidth = (values.length > 1 ? parseInt(values[1]) : Infinity);\n\n                // Create new gap.\n                let gap = new Gap(this.editor, i, columnPos, minWidth, maxWidth);\n                gap.index = this.nextGapIndex;\n                this.nextGapIndex += 1;\n                this.gaps.push(gap);\n\n                columnPos += minWidth;\n                editorContent += ' '.repeat(minWidth);\n                if (j + 1 < bits.length) {\n                    editorContent += bits[j+1];\n                    columnPos += bits[j+1].length;\n                }\n\n            }\n\n            if (i < lines.length-1) {\n                editorContent += '\\n';\n            }\n        }\n        this.editor.session.setValue(editorContent);\n    };\n\n    /**\n     * Return the gap that the cursor is in. This will actually return a gap if\n     * the cursor is 1 outside the gap as this will be needed for\n     * backspace/insertion to work. Rigth now this is done as a simple\n     * linear search but could be improved later.\n     * @param {object} cursor The ace editor cursor position.\n     * @returns {object} The gap that the cursor is current in, or null otherwise.\n     */\n    AceGapfillerUi.prototype.findCursorGap = function(cursor) {\n        for (let i=0; i < this.gaps.length; i++) {\n            let gap = this.gaps[i];\n            if (gap.cursorInGap(cursor)) {\n                return gap;\n            }\n        }\n        return null;\n    };\n\n    AceGapfillerUi.prototype.failed = function() {\n        return this.fail;\n    };\n\n    AceGapfillerUi.prototype.failMessage = function() {\n        return 'ace_ui_notready';\n    };\n\n\n    // Sync to TextArea\n    AceGapfillerUi.prototype.sync = function() {\n        if (this.fail) {\n            return; // Leave the text area alone if Ace load failed.\n        }\n        let serialisation = [];  // A list of field values.\n        let empty = true;\n\n        for (let i=0; i < this.gaps.length; i++) {\n            let gap = this.gaps[i];\n            let value = gap.getText();\n            serialisation.push(value);\n            if (value !== \"\") {\n                empty = false;\n            }\n        }\n        if (empty) {\n            this.textArea.val('');\n        } else {\n            this.textArea.val(JSON.stringify(serialisation));\n        }\n    };\n\n    // Sync every 2 seconds in case quiz closes automatically without user\n    // action.\n    AceGapfillerUi.prototype.syncIntervalSecs = (() => 2);\n\n    // Reload the HTML fields from the given serialisation.\n    AceGapfillerUi.prototype.reload = function() {\n        let content = this.textArea.val();\n        if (content) {\n            try {\n                let values = JSON.parse(content);\n                for (let i = 0; i < this.gaps.length; i++) {\n                    let value = i < values.length ? values[i]: '???';\n                    this.gaps[i].insertText(this.gaps, this.gaps[i].range.start.column, value);\n                }\n            } catch(e) {\n                // Just ignore errors\n            }\n        }\n    };\n\n    AceGapfillerUi.prototype.setLanguage = function(language) {\n        var session = this.editor.getSession(),\n            mode = this.findMode(language);\n        if (mode) {\n            session.setMode(mode.mode);\n        }\n    };\n\n    AceGapfillerUi.prototype.getElement = function() {\n        return this.editNode;\n    };\n\n    AceGapfillerUi.prototype.captureTab = function () {\n        this.capturingTab = true;\n        this.editor.commands.bindKeys({'Tab': 'indent', 'Shift-Tab': 'outdent'});\n    };\n\n    AceGapfillerUi.prototype.releaseTab = function () {\n        this.capturingTab = false;\n        this.editor.commands.bindKeys({'Tab': null, 'Shift-Tab': null});\n    };\n\n    AceGapfillerUi.prototype.setEventHandlers = function () {\n        var TAB = 9,\n            ESC = 27,\n            KEY_M = 77,\n            t = this;\n\n        this.editor.getSession().on('change', function() {\n            t.contents_changed = true;\n        });\n\n        this.editor.on('blur', function() {\n            if (t.contents_changed) {\n                t.textArea.trigger('change');\n            }\n        });\n\n        this.editor.on('mousedown', function() {\n            // Event order seems to be (\\ is where the mouse button is pressed, / released):\n            // Chrome: \\ mousedown, mouseup, focusin / click.\n            // Firefox/IE: \\ mousedown, focusin / mouseup, click.\n            t.clickInProgress = true;\n        });\n\n        this.editor.on('focus', function() {\n            if (t.clickInProgress) {\n                t.captureTab();\n            } else {\n                t.releaseTab();\n            }\n        });\n\n        this.editor.on('click', function() {\n            t.clickInProgress = false;\n        });\n\n        this.editor.container.addEventListener('keydown', function(e) {\n            if (e.which === undefined || e.which !== 0) { // Normal keypress?\n                if (e.keyCode === KEY_M && e.ctrlKey && !e.altKey) {\n                    if (t.capturingTab) {\n                        t.releaseTab();\n                    } else {\n                        t.captureTab();\n                    }\n                    e.preventDefault(); // Firefox uses this for mute audio in current browser tab.\n                }\n                else if (e.keyCode === ESC) {\n                    t.releaseTab();\n                }\n                else if (!(e.shiftKey || e.ctrlKey || e.altKey || e.keyCode == TAB)) {\n                    t.captureTab();\n                }\n            }\n        }, true);\n    };\n\n    AceGapfillerUi.prototype.destroy = function () {\n        this.sync();\n        var focused;\n        if (!this.fail) {\n            // Proceed only if this wrapper was correctly constructed\n            focused = this.editor.isFocused();\n            this.editor.destroy();\n            $(this.editNode).remove();\n            if (focused) {\n                this.textArea.focus();\n                this.textArea[0].selectionStart = this.textArea[0].value.length;\n            }\n        }\n    };\n\n    AceGapfillerUi.prototype.hasFocus = function() {\n        return this.editor.isFocused();\n    };\n\n    AceGapfillerUi.prototype.findMode = function (language) {\n        var candidate,\n            filename,\n            result,\n            candidates = [], // List of candidate modes.\n            nameMap = {\n                'octave': 'matlab',\n                'nodejs': 'javascript',\n                'c#': 'cs'\n            };\n\n        if (typeof language !== 'string') {\n            return undefined;\n        }\n        if (language.toLowerCase() in nameMap) {\n            language = nameMap[language.toLowerCase()];\n        }\n\n        candidates = [language, language.replace(/\\d+$/, \"\")];\n        for (var i = 0; i < candidates.length; i++) {\n            candidate = candidates[i];\n            filename = \"input.\" + candidate;\n            result = this.modelist.modesByName[candidate] ||\n                this.modelist.modesByName[candidate.toLowerCase()] ||\n                this.modelist.getModeForPath(filename) ||\n                this.modelist.getModeForPath(filename.toLowerCase());\n\n            if (result && result.name !== 'text') {\n                return result;\n            }\n        }\n        return undefined;\n    };\n\n    AceGapfillerUi.prototype.resize = function(w, h) {\n        this.editNode.outerHeight(h);\n        this.editNode.outerWidth(w);\n        this.editor.resize();\n    };\n\n    /**\n     * Constructor for the Gap object that represents a gap in the source code\n     * that the user is expected to fill.\n     * @param {object} editor The Ace Editor object.\n     * @param {int} row The row within the text of the gap.\n     * @param {int} column The column within the text of the gap.\n     * @param {int} minWidth The minimum width (in characters) of the gap.\n     * @param {int} maxWidth The maximum width (in characters) of the gap.\n     */\n    function Gap(editor, row, column, minWidth, maxWidth=Infinity) {\n        this.editor = editor;\n\n        this.minWidth = minWidth;\n        this.maxWidth = maxWidth;\n\n        this.range = new Range(row, column, row, column+minWidth);\n        this.textSize = 0;\n\n        // Create markers\n        this.editor.session.addMarker(this.range, \"ace-gap-outline\", \"text\", true);\n        this.editor.session.addMarker(this.range, \"ace-gap-background\", \"text\", false);\n    }\n\n    Gap.prototype.cursorInGap = function(cursor) {\n        return (cursor.row >= this.range.start.row && cursor.column >= this.range.start.column &&\n                cursor.row <= this.range.end.row && cursor.column <= this.range.end.column);\n    };\n\n    Gap.prototype.getWidth = function() {\n        return (this.range.end.column-this.range.start.column);\n    };\n\n    Gap.prototype.changeWidth = function(gaps, delta) {\n        this.range.end.column += delta;\n\n        // Update any gaps that come after this one on the same line\n        for (let i=0; i < gaps.length; i++) {\n            let other = gaps[i];\n            if (other.range.start.row === this.range.start.row && other.range.start.column > this.range.end.column) {\n                other.range.start.column += delta;\n                other.range.end.column += delta;\n            }\n        }\n\n        this.editor.$onChangeBackMarker();\n        this.editor.$onChangeFrontMarker();\n    };\n\n    Gap.prototype.insertChar = function(gaps, pos, char) {\n        if (this.textSize === this.getWidth() && this.getWidth() < this.maxWidth) {    // Grow the size of gap and insert char.\n            this.changeWidth(gaps, 1);\n            this.textSize += 1;  // Important to record that texSize has increased before insertion.\n            this.editor.session.insert(pos, char);\n        } else if (this.textSize < this.maxWidth) {   // Insert char.\n            this.editor.session.remove(new Range(pos.row, this.range.end.column-1, pos.row, this.range.end.column));\n            this.textSize += 1;  // Important to record that texSize has increased before insertion.\n            this.editor.session.insert(pos, char);\n        }\n    };\n\n    Gap.prototype.deleteChar = function(gaps, pos) {\n        this.textSize -= 1;\n        this.editor.session.remove(new Range(pos.row, pos.column, pos.row, pos.column+1));\n\n        if (this.textSize >= this.minWidth) {\n            this.changeWidth(gaps, -1);  // Shrink the size of the gap.\n        } else {\n            // Put new space at end so everything is shifted across.\n            this.editor.session.insert({row: pos.row, column: this.range.end.column-1}, fillChar);\n        }\n    };\n\n    Gap.prototype.deleteRange = function(gaps, start, end) {\n        for (let i = start; i < end; i++) {\n            if (start < this.range.start.column+this.textSize) {\n                this.deleteChar(gaps, {row: this.range.start.row, column: start});\n            }\n        }\n    };\n\n    Gap.prototype.insertText = function(gaps, start, text) {\n        for (let i = 0; i < text.length; i++) {\n            if (start+i < this.range.start.column+this.maxWidth) {\n                this.insertChar(gaps, {row: this.range.start.row, column: start+i}, text[i]);\n            }\n        }\n    };\n\n    Gap.prototype.getText = function() {\n        return this.editor.session.getTextRange(new Range(this.range.start.row, this.range.start.column,\n                                                this.range.end.row, this.range.start.column+this.textSize));\n\n    };\n\n    return {\n        Constructor: AceGapfillerUi\n    };\n});\n"],"names":["define","$","Range","validChars","AceGapfillerUi","textareaId","w","h","uiParams","textArea","document","getElementById","wrapper","focused","this","activeElement","lang","t","code","gaps","source","ui_source","nextGapIndex","alert","attr","window","ace","require","modelist","enabled","contents_changed","capturingTab","clickInProgress","editNode","css","resize","height","width","editor","edit","get","prop","setReadOnly","setOptions","displayIndentGuides","dragEnabled","enableBasicAutocompletion","newLineMode","$blockScrolling","Infinity","theme","setTheme","setLanguage","setEventHandlers","captureTab","renderer","on","gutter","find","hasClass","addClass","focus","navigateFileEnd","aceLabel","aceTextarea","createGaps","commands","e","cursor","selection","getCursor","commandName","command","name","selectionRange","getSelectionRange","gap","findCursorGap","startsWith","column","range","start","textSize","moveCursorTo","row","end","selectAll","nextGap","index","length","clearSelection","setSelectionRange","isEmpty","char","args","test","insertChar","deleteChar","cursorInGap","deleteRange","insertText","text","preventDefault","stopPropagation","gapToSelect","fail","reload","err","Gap","minWidth","maxWidth","session","addMarker","prototype","reEscape","s","c","result","i","j","lines","split","sepLeft","sepRight","splitter","RegExp","editorContent","bits","columnPos","values","parseInt","push","repeat","setValue","failed","failMessage","sync","serialisation","empty","value","getText","val","JSON","stringify","syncIntervalSecs","content","parse","language","getSession","mode","findMode","setMode","getElement","bindKeys","releaseTab","trigger","container","addEventListener","undefined","which","keyCode","ctrlKey","altKey","shiftKey","destroy","isFocused","remove","selectionStart","hasFocus","candidate","filename","candidates","nameMap","toLowerCase","replace","modesByName","getModeForPath","outerHeight","outerWidth","getWidth","changeWidth","delta","other","$onChangeBackMarker","$onChangeFrontMarker","pos","insert","getTextRange","Constructor"],"mappings":";;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;AAwDAA,2CAAO,CAAC,WAAW,SAASC,OAEpBC,YAEEC,WAAa,4DAUVC,eAAeC,WAAYC,EAAGC,EAAGC,eACjCC,SAAWR,EAAES,SAASC,eAAeN,iBACtCO,QAAUX,EAAES,SAASC,eAAeN,WAAa,aACjDQ,QAAUC,KAAKL,SAAS,KAAOC,SAASK,cACxCC,KAAOR,SAASQ,KAChBC,EAAIH,SAEJI,KAAO,QACNV,SAAWA,cACXW,KAAO,QACPC,OAASZ,SAASa,WAAa,mBAC/BC,aAAe,EACA,gBAAhBR,KAAKM,QAA4C,UAAhBN,KAAKM,SACtCG,MAAM,oDACDH,OAAS,eAGdF,KADe,eAAfJ,KAAKM,OACEN,KAAKL,SAASe,KAAK,oBAEnBV,KAAKL,SAASe,KAAK,kBAI1BC,OAAOC,IAAIC,QAAQ,0BACnBzB,MAAQuB,OAAOC,IAAIC,QAAQ,aAAazB,WACnC0B,SAAWH,OAAOC,IAAIC,QAAQ,yBAE9BE,SAAU,OACVC,kBAAmB,OACnBC,cAAe,OACfC,iBAAkB,OAElBC,SAAWhC,EAAE,oBACbgC,SAASC,IAAI,CACdC,OAAQ,OACRC,OAAQ7B,EACR8B,MAAO,cAGNC,OAASb,OAAOC,IAAIa,KAAKzB,KAAKmB,SAASO,IAAI,IAC5C1B,KAAKL,SAASgC,KAAK,kBACdH,OAAOI,aAAY,QAGvBJ,OAAOK,WAAW,CACnBC,qBAAqB,EACrBC,aAAa,EACbC,2BAA2B,EAC3BC,YAAa,cAEZT,OAAOU,gBAAkBC,EAAAA,EAG1BzC,SAAS0C,WACJZ,OAAOa,SAAS,aAAe3C,SAAS0C,YAExCZ,OAAOa,SAjEA,2BAoEXC,YAAYpC,WAEZqC,iBAAiBvC,KAAKL,eACtB6C,kBAMAhB,OAAOiB,SAASC,GAAG,eAAe,eAC/BC,OAAU7C,QAAQ8C,KAAK,eACvBD,OAAOE,SAAS,uBAGpBF,OAAOG,SAAS,qBAEZ/C,UACAI,EAAEqB,OAAOuB,QACT5C,EAAEqB,OAAOwB,mBAEb7C,EAAE8C,SAAWnD,QAAQ8C,KAAK,iBAC1BzC,EAAE8C,SAASvC,KAAK,MAAO,OAASnB,YAEhCY,EAAE+C,YAAcpD,QAAQ8C,KAAK,mBAC7BzC,EAAE+C,YAAYxC,KAAK,KAAM,OAASnB,qBAGjC4D,WAAW/C,WAGXoB,OAAO4B,SAASV,GAAG,QAAQ,SAASW,OACjCC,OAASnD,EAAEqB,OAAO+B,UAAUC,YAC5BC,YAAcJ,EAAEK,QAAQC,KACxBC,eAAiBzD,EAAEqB,OAAOqC,oBAE1BC,IAAM3D,EAAE4D,cAAcT,WAEtBG,YAAYO,WAAW,MAAO,IAClB,OAARF,KAAgC,cAAhBL,aAA+BH,OAAOW,SAAWH,IAAII,MAAMC,MAAMF,OAAOH,IAAIM,gBAE5FjE,EAAEqB,OAAO6C,aAAaf,OAAOgB,IAAKR,IAAII,MAAMK,IAAIN,OAAO,MAMnD,OAARH,IAEoB,cAAhBL,aACAtD,EAAEqB,OAAO+B,UAAUiB,iBAGpB,GAAoB,WAAhBf,YAA0B,KAE7BgB,QAAUtE,EAAEE,MAAMyD,IAAIY,MAAM,GAAKvE,EAAEE,KAAKsE,QAC5CxE,EAAEqB,OAAO6C,aAAaI,QAAQP,MAAMC,MAAMG,IAAKG,QAAQP,MAAMC,MAAMF,OAAOQ,QAAQL,UAClFjE,EAAEqB,OAAO+B,UAAUqB,sBAEhB,GAAoB,cAAhBnB,YAEPtD,EAAEqB,OAAO+B,UAAUsB,kBAAkB,IAAIzF,MAAM0E,IAAII,MAAMC,MAAMG,IAC1BR,IAAII,MAAMC,MAAMF,OAChBH,IAAII,MAAMC,MAAMG,IAChBR,IAAII,MAAMK,IAAIN,SAAS,QAEzD,GAAI9D,EAAEqB,OAAO+B,UAAUuB,UAAW,IAEjB,iBAAhBrB,YAAgC,KAC5BsB,KAAO1B,EAAE2B,KAET3F,WAAW4F,KAAKF,OAChBjB,IAAIoB,WAAW/E,EAAEE,KAAMiD,OAAQyB,UAEZ,cAAhBtB,YAEHH,OAAOW,OAASH,IAAII,MAAMC,MAAMF,QAAUH,IAAIM,SAAW,GACzDN,IAAIqB,WAAWhF,EAAEE,KAAM,CAACiE,IAAKhB,OAAOgB,IAAKL,OAAQX,OAAOW,OAAO,IAE5C,QAAhBR,aAEHH,OAAOW,OAASH,IAAII,MAAMC,MAAMF,OAASH,IAAIM,UAAYN,IAAIM,SAAW,GACxEN,IAAIqB,WAAWhF,EAAEE,KAAMiD,QAG/BnD,EAAEqB,OAAO+B,UAAUqB,sBAEhB,IAAKzE,EAAEqB,OAAO+B,UAAUuB,WAAahB,IAAIsB,YAAYxB,eAAeO,QAC7DL,IAAIsB,YAAYxB,eAAeW,OAIrB,iBAAhBd,aAAkD,cAAhBA,aACf,QAAhBA,aAAyC,UAAhBA,aACT,QAAhBA,cAEHK,IAAIuB,YAAYlF,EAAEE,KAAMuD,eAAeO,MAAMF,OAAQL,eAAeW,IAAIN,QACxE9D,EAAEqB,OAAO+B,UAAUqB,kBAGH,iBAAhBnB,aAAgC,KAC5BsB,KAAO1B,EAAE2B,KACT3F,WAAW4F,KAAKF,OAChBjB,IAAIoB,WAAW/E,EAAEE,KAAMuD,eAAeO,MAAOY,MAM7C,OAARjB,KAAgC,UAAhBL,aAChBK,IAAIwB,WAAWnF,EAAEE,KAAMuD,eAAeO,MAAMF,OAAQZ,EAAE2B,KAAKO,MAG/DlC,EAAEmC,iBACFnC,EAAEoC,qBAINtF,EAAEqB,OAAO+B,UAAUb,GAAG,gBAAgB,eAC9BY,OAASnD,EAAEqB,OAAO+B,UAAUC,YAC5BM,IAAM3D,EAAE4D,cAAcT,QACd,OAARQ,KACIR,OAAOW,OAASH,IAAII,MAAMC,MAAMF,OAAOH,IAAIM,UAC3CjE,EAAEqB,OAAO6C,aAAaP,IAAII,MAAMC,MAAMG,IAAKR,IAAII,MAAMC,MAAMF,OAAOH,IAAIM,kBAK7EsB,YAAc,UAGdlE,OAAOkB,GAAG,eAAe,SAASW,OAC/BC,OAASnD,EAAEqB,OAAO+B,UAAUC,YAC5BM,IAAM3D,EAAE4D,cAAcT,QACd,OAARQ,MACA3D,EAAEqB,OAAO+B,UAAUsB,kBAAkB,IAAIzF,MAAM0E,IAAII,MAAMC,MAAMG,IAChBR,IAAII,MAAMC,MAAMF,OAChBH,IAAII,MAAMC,MAAMG,IAChBR,IAAII,MAAMK,IAAIN,SAAS,GACtE9D,EAAEuF,YAAc5B,IAChBT,EAAEmC,iBACFnC,EAAEoC,2BAKLjE,OAAOkB,GAAG,SAAS,SAASW,GACzBlD,EAAEuF,cACFvF,EAAEqB,OAAO6C,aAAalE,EAAEuF,YAAYxB,MAAMC,MAAMG,IAAKnE,EAAEuF,YAAYxB,MAAMC,MAAMF,OAAO9D,EAAEuF,YAAYtB,UACpGjE,EAAEuF,YAAc,KAChBrC,EAAEmC,iBACFnC,EAAEoC,2BAILE,MAAO,OACPC,SAET,MAAMC,UAEGF,MAAO,YA6RXG,IAAItE,OAAQ8C,IAAKL,OAAQ8B,cAAUC,gEAAS7D,EAAAA,OAC5CX,OAASA,YAETuE,SAAWA,cACXC,SAAWA,cAEX9B,MAAQ,IAAI9E,MAAMkF,IAAKL,OAAQK,IAAKL,OAAO8B,eAC3C3B,SAAW,OAGX5C,OAAOyE,QAAQC,UAAUlG,KAAKkE,MAAO,kBAAmB,QAAQ,QAChE1C,OAAOyE,QAAQC,UAAUlG,KAAKkE,MAAO,qBAAsB,QAAQ,UA9R5E5E,eAAe6G,UAAUhD,WAAa,SAAS/C,eAOlCgG,SAASC,WACVC,EAAyBC,OAAO,GAC3BC,EAAI,EAAGA,EAAIH,EAAE1B,OAAQ6B,IAAK,CAC/BF,EAAID,EAAEG,OACD,IAAIC,EAAI,EAAGA,EAHF,UAGe9B,OAAQ8B,IAC7BH,IAJM,UAISG,KACfH,EAAI,KAAOA,GAGnBC,QAAUD,SAEPC,YAjBNlG,KAAO,OAoBRqG,MAAQtG,KAAKuG,MAAM,SAEnBC,QAAUR,SAAS,MACnBS,SAAWT,SAAS,MACpBU,SAAW,IAAIC,OAAOH,QAAU,iCAAmCC,UAEnEG,cAAgB,OACf,IAAIR,EAAI,EAAGA,EAAIE,MAAM/B,OAAQ6B,IAAK,KAC/BS,KAAOP,MAAMF,GAAGG,MAAMG,UAC1BE,eAAiBC,KAAK,OAElBC,UAAYD,KAAK,GAAGtC,WACnB,IAAI8B,EAAI,EAAGA,EAAIQ,KAAKtC,OAAQ8B,GAAK,EAAG,KACjCU,OAASF,KAAKR,GAAGE,MAAM,KACvBZ,SAAWqB,SAASD,OAAO,IAC3BnB,SAAYmB,OAAOxC,OAAS,EAAIyC,SAASD,OAAO,IAAMhF,EAAAA,EAGtD2B,IAAM,IAAIgC,IAAI9F,KAAKwB,OAAQgF,EAAGU,UAAWnB,SAAUC,UACvDlC,IAAIY,MAAQ1E,KAAKQ,kBACZA,cAAgB,OAChBH,KAAKgH,KAAKvD,KAEfoD,WAAanB,SACbiB,eAAiB,IAAIM,OAAOvB,UACxBU,EAAI,EAAIQ,KAAKtC,SACbqC,eAAiBC,KAAKR,EAAE,GACxBS,WAAaD,KAAKR,EAAE,GAAG9B,QAK3B6B,EAAIE,MAAM/B,OAAO,IACjBqC,eAAiB,WAGpBxF,OAAOyE,QAAQsB,SAASP,gBAWjC1H,eAAe6G,UAAUpC,cAAgB,SAAST,YACzC,IAAIkD,EAAE,EAAGA,EAAIxG,KAAKK,KAAKsE,OAAQ6B,IAAK,KACjC1C,IAAM9D,KAAKK,KAAKmG,MAChB1C,IAAIsB,YAAY9B,eACTQ,WAGR,MAGXxE,eAAe6G,UAAUqB,OAAS,kBACvBxH,KAAK2F,MAGhBrG,eAAe6G,UAAUsB,YAAc,iBAC5B,mBAKXnI,eAAe6G,UAAUuB,KAAO,cACxB1H,KAAK2F,gBAGLgC,cAAgB,GAChBC,OAAQ,MAEP,IAAIpB,EAAE,EAAGA,EAAIxG,KAAKK,KAAKsE,OAAQ6B,IAAK,KAEjCqB,MADM7H,KAAKK,KAAKmG,GACJsB,UAChBH,cAAcN,KAAKQ,OACL,KAAVA,QACAD,OAAQ,GAGZA,WACKjI,SAASoI,IAAI,SAEbpI,SAASoI,IAAIC,KAAKC,UAAUN,iBAMzCrI,eAAe6G,UAAU+B,iBAAoB,IAAM,EAGnD5I,eAAe6G,UAAUP,OAAS,eAC1BuC,QAAUnI,KAAKL,SAASoI,SACxBI,gBAEQhB,OAASa,KAAKI,MAAMD,aACnB,IAAI3B,EAAI,EAAGA,EAAIxG,KAAKK,KAAKsE,OAAQ6B,IAAK,KACnCqB,MAAQrB,EAAIW,OAAOxC,OAASwC,OAAOX,GAAI,WACtCnG,KAAKmG,GAAGlB,WAAWtF,KAAKK,KAAML,KAAKK,KAAKmG,GAAGtC,MAAMC,MAAMF,OAAQ4D,QAE1E,MAAMxE,MAMhB/D,eAAe6G,UAAU7D,YAAc,SAAS+F,cACxCpC,QAAUjG,KAAKwB,OAAO8G,aACtBC,KAAOvI,KAAKwI,SAASH,UACrBE,MACAtC,QAAQwC,QAAQF,KAAKA,OAI7BjJ,eAAe6G,UAAUuC,WAAa,kBAC3B1I,KAAKmB,UAGhB7B,eAAe6G,UAAU3D,WAAa,gBAC7BvB,cAAe,OACfO,OAAO4B,SAASuF,SAAS,KAAQ,qBAAuB,aAGjErJ,eAAe6G,UAAUyC,WAAa,gBAC7B3H,cAAe,OACfO,OAAO4B,SAASuF,SAAS,KAAQ,iBAAmB,QAG7DrJ,eAAe6G,UAAU5D,iBAAmB,eAIpCpC,EAAIH,UAEHwB,OAAO8G,aAAa5F,GAAG,UAAU,WAClCvC,EAAEa,kBAAmB,UAGpBQ,OAAOkB,GAAG,QAAQ,WACfvC,EAAEa,kBACFb,EAAER,SAASkJ,QAAQ,kBAItBrH,OAAOkB,GAAG,aAAa,WAIxBvC,EAAEe,iBAAkB,UAGnBM,OAAOkB,GAAG,SAAS,WAChBvC,EAAEe,gBACFf,EAAEqC,aAEFrC,EAAEyI,qBAILpH,OAAOkB,GAAG,SAAS,WACpBvC,EAAEe,iBAAkB,UAGnBM,OAAOsH,UAAUC,iBAAiB,WAAW,SAAS1F,QACvC2F,IAAZ3F,EAAE4F,OAAmC,IAAZ5F,EAAE4F,QAjCvB,KAkCA5F,EAAE6F,SAAqB7F,EAAE8F,UAAY9F,EAAE+F,QACnCjJ,EAAEc,aACFd,EAAEyI,aAEFzI,EAAEqC,aAENa,EAAEmC,kBAzCJ,KA2COnC,EAAE6F,QACP/I,EAAEyI,aAEKvF,EAAEgG,UAAYhG,EAAE8F,SAAW9F,EAAE+F,QA/CtC,GA+CgD/F,EAAE6F,SAChD/I,EAAEqC,iBAGX,IAGPlD,eAAe6G,UAAUmD,QAAU,eAE3BvJ,aADC2H,OAEA1H,KAAK2F,OAEN5F,QAAUC,KAAKwB,OAAO+H,iBACjB/H,OAAO8H,UACZnK,EAAEa,KAAKmB,UAAUqI,SACbzJ,eACKJ,SAASoD,aACTpD,SAAS,GAAG8J,eAAiBzJ,KAAKL,SAAS,GAAGkI,MAAMlD,UAKrErF,eAAe6G,UAAUuD,SAAW,kBACzB1J,KAAKwB,OAAO+H,aAGvBjK,eAAe6G,UAAUqC,SAAW,SAAUH,cACtCsB,UACAC,SACArD,OACAsD,WACAC,QAAU,QACI,gBACA,kBACJ,SAGU,iBAAbzB,UAGPA,SAAS0B,gBAAiBD,UAC1BzB,SAAWyB,QAAQzB,SAAS0B,gBAGhCF,WAAa,CAACxB,SAAUA,SAAS2B,QAAQ,OAAQ,SAC5C,IAAIxD,EAAI,EAAGA,EAAIqD,WAAWlF,OAAQ6B,OAEnCoD,SAAW,UADXD,UAAYE,WAAWrD,KAEvBD,OAASvG,KAAKc,SAASmJ,YAAYN,YAC/B3J,KAAKc,SAASmJ,YAAYN,UAAUI,gBACpC/J,KAAKc,SAASoJ,eAAeN,WAC7B5J,KAAKc,SAASoJ,eAAeN,SAASG,iBAEZ,SAAhBxD,OAAO5C,YACV4C,SAMnBjH,eAAe6G,UAAU9E,OAAS,SAAS7B,EAAGC,QACrC0B,SAASgJ,YAAY1K,QACrB0B,SAASiJ,WAAW5K,QACpBgC,OAAOH,UA0BhByE,IAAIK,UAAUf,YAAc,SAAS9B,eACzBA,OAAOgB,KAAOtE,KAAKkE,MAAMC,MAAMG,KAAOhB,OAAOW,QAAUjE,KAAKkE,MAAMC,MAAMF,QACxEX,OAAOgB,KAAOtE,KAAKkE,MAAMK,IAAID,KAAOhB,OAAOW,QAAUjE,KAAKkE,MAAMK,IAAIN,QAGhF6B,IAAIK,UAAUkE,SAAW,kBACbrK,KAAKkE,MAAMK,IAAIN,OAAOjE,KAAKkE,MAAMC,MAAMF,QAGnD6B,IAAIK,UAAUmE,YAAc,SAASjK,KAAMkK,YAClCrG,MAAMK,IAAIN,QAAUsG,UAGpB,IAAI/D,EAAE,EAAGA,EAAInG,KAAKsE,OAAQ6B,IAAK,KAC5BgE,MAAQnK,KAAKmG,GACbgE,MAAMtG,MAAMC,MAAMG,MAAQtE,KAAKkE,MAAMC,MAAMG,KAAOkG,MAAMtG,MAAMC,MAAMF,OAASjE,KAAKkE,MAAMK,IAAIN,SAC5FuG,MAAMtG,MAAMC,MAAMF,QAAUsG,MAC5BC,MAAMtG,MAAMK,IAAIN,QAAUsG,YAI7B/I,OAAOiJ,2BACPjJ,OAAOkJ,wBAGhB5E,IAAIK,UAAUjB,WAAa,SAAS7E,KAAMsK,IAAK5F,MACvC/E,KAAKoE,WAAapE,KAAKqK,YAAcrK,KAAKqK,WAAarK,KAAKgG,eACvDsE,YAAYjK,KAAM,QAClB+D,UAAY,OACZ5C,OAAOyE,QAAQ2E,OAAOD,IAAK5F,OACzB/E,KAAKoE,SAAWpE,KAAKgG,gBACvBxE,OAAOyE,QAAQuD,OAAO,IAAIpK,MAAMuL,IAAIrG,IAAKtE,KAAKkE,MAAMK,IAAIN,OAAO,EAAG0G,IAAIrG,IAAKtE,KAAKkE,MAAMK,IAAIN,cAC1FG,UAAY,OACZ5C,OAAOyE,QAAQ2E,OAAOD,IAAK5F,QAIxCe,IAAIK,UAAUhB,WAAa,SAAS9E,KAAMsK,UACjCvG,UAAY,OACZ5C,OAAOyE,QAAQuD,OAAO,IAAIpK,MAAMuL,IAAIrG,IAAKqG,IAAI1G,OAAQ0G,IAAIrG,IAAKqG,IAAI1G,OAAO,IAE1EjE,KAAKoE,UAAYpE,KAAK+F,cACjBuE,YAAYjK,MAAO,QAGnBmB,OAAOyE,QAAQ2E,OAAO,CAACtG,IAAKqG,IAAIrG,IAAKL,OAAQjE,KAAKkE,MAAMK,IAAIN,OAAO,GA7jB/D,MAikBjB6B,IAAIK,UAAUd,YAAc,SAAShF,KAAM8D,MAAOI,SACzC,IAAIiC,EAAIrC,MAAOqC,EAAIjC,IAAKiC,IACrBrC,MAAQnE,KAAKkE,MAAMC,MAAMF,OAAOjE,KAAKoE,eAChCe,WAAW9E,KAAM,CAACiE,IAAKtE,KAAKkE,MAAMC,MAAMG,IAAKL,OAAQE,SAKtE2B,IAAIK,UAAUb,WAAa,SAASjF,KAAM8D,MAAOoB,UACxC,IAAIiB,EAAI,EAAGA,EAAIjB,KAAKZ,OAAQ6B,IACzBrC,MAAMqC,EAAIxG,KAAKkE,MAAMC,MAAMF,OAAOjE,KAAKgG,eAClCd,WAAW7E,KAAM,CAACiE,IAAKtE,KAAKkE,MAAMC,MAAMG,IAAKL,OAAQE,MAAMqC,GAAIjB,KAAKiB,KAKrFV,IAAIK,UAAU2B,QAAU,kBACb9H,KAAKwB,OAAOyE,QAAQ4E,aAAa,IAAIzL,MAAMY,KAAKkE,MAAMC,MAAMG,IAAKtE,KAAKkE,MAAMC,MAAMF,OACjDjE,KAAKkE,MAAMK,IAAID,IAAKtE,KAAKkE,MAAMC,MAAMF,OAAOjE,KAAKoE,YAItF,CACH0G,YAAaxL"}
\ No newline at end of file
+{"version":3,"file":"ui_ace_gapfiller.min.js","sources":["../src/ui_ace_gapfiller.js"],"sourcesContent":["// This file is part of Moodle - http://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 util.details.\n//\n// You should have received a copy of the GNU General Public License\n// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.\n\n/**\n * Implementation of the ace_gapfiller_ui user interface plugin. For overall details\n * of the UI plugin architecture, see userinterfacewrapper.js.\n *\n * This plugin uses the usual ace editor but only makes some portions of the text editable.\n * The pre-formatted text is supplied by the question author in either the\n * \"globalextra\" field or the testcode field of the first test case, according\n * to the ui parameter ui_source (default: globalextra).\n * Editable \"gaps\" are inserted into the ace editor at specified points.\n * It is intended primarily for use with coding questions where the answerbox presents\n * the students with code that has smallish bits missing.\n *\n * The locations within the globalextra text at which the gaps are\n * to be inserted are denoted by \"tags\" of the form\n *\n *     {[ size ]}\n *\n * or\n *\n *     {[ size-maxSize ]}\n *\n * where size and maxSize are integer literals. These respectively inject a \"gap\" into\n * the editor of the specified size and maxSize. If maxSize is not specified then the\n * \"gap\" has no maximum size and can grow without bound.\n *\n * The serialisation of the answer box contents, i.e. the text that\n * copied back into the textarea for submissions\n * as the answer, is simply a list of all the field values (strings), in order.\n *\n * As a special case of the serialisation, if the value list is empty, the\n * serialisation itself is the empty string.\n *\n * The delimiters for the gap tags are by default '{[' and\n * ']}'.\n *\n * @module qtype_coderunner/ui_ace_gapfiller\n * @copyright  Richard Lobb, 2019, The University of Canterbury\n * @copyright  Matthew Toohey, 2021, The University of Canterbury\n * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later\n */\n\ndefine(['jquery'], function($) {\n\n    var Range;  // Can't load this until ace has loaded.\n    const fillChar = \" \";\n    const validChars = /[ !\"#$%&'()*+,`\\-./0-9\\p{L}:;<=>?@\\[\\]\\\\^_{}|~]/u;\n    const ACE_LIGHT_THEME = 'ace/theme/textmate';\n\n    /**\n     * Constructor for the Ace interface object\n     * @param {string} textareaId The ID of the textarea html element.\n     * @param {int} w The width of the text area in pixels.\n     * @param {int} h The height of the text area in pixels.\n     * @param {object} uiParams The UI parameter specifier object.\n     */\n    function AceGapfillerUi(textareaId, w, h, uiParams) {\n        this.textArea = $(document.getElementById(textareaId));\n        var wrapper = $(document.getElementById(textareaId + '_wrapper')),\n            focused = this.textArea[0] === document.activeElement,\n            lang = uiParams.lang,\n            t = this;  // For embedded callbacks.\n\n        let code = \"\";\n        this.uiParams = uiParams;\n        this.gaps = [];\n        this.source = uiParams.ui_source || 'globalextra';\n        this.nextGapIndex = 0;\n        if (this.source !== 'globalextra' && this.source !== 'test0') {\n            alert('Invalid source for code in ui_ace_gapfiller');\n            this.source = 'globalextra';\n        }\n        if (this.source == 'globalextra') {\n            code = this.textArea.attr('data-globalextra');\n        } else {\n            code = this.textArea.attr('data-test0');\n        }\n\n        try {\n            window.ace.require(\"ace/ext/language_tools\");\n            Range = window.ace.require(\"ace/range\").Range;\n            this.modelist = window.ace.require('ace/ext/modelist');\n\n            this.enabled = false;\n            this.contents_changed = false;\n            this.capturingTab = false;\n            this.clickInProgress = false;\n\n            this.editNode = $(\"<div></div>\"); // Ace editor manages this\n            this.editNode.css({\n                resize: 'none',\n                height: h,\n                width: \"100%\"\n            });\n\n            this.editor = window.ace.edit(this.editNode.get(0));\n            if (this.textArea.prop('readonly')) {\n                this.editor.setReadOnly(true);\n            }\n\n            this.editor.setOptions({\n                displayIndentGuides: false,\n                dragEnabled: false,\n                enableBasicAutocompletion: true,\n                newLineMode: \"unix\",\n            });\n            this.editor.$blockScrolling = Infinity;\n\n            // Use the uiParams theme if provided else use light.\n            if (uiParams.theme) {\n                this.editor.setTheme(\"ace/theme/\" + uiParams.theme);\n            } else {\n                this.editor.setTheme(ACE_LIGHT_THEME);\n            }\n\n            this.setLanguage(lang);\n\n            this.setEventHandlers(this.textArea);\n            this.captureTab();\n\n            // Try to tell Moodle about parts of the editor with z-index.\n            // It is hard to be sure if this is complete. ACE adds all its CSS using JavaScript.\n            // Here, we just deal with things that are known to cause a problem.\n            // Can't do these operations until editor has rendered. So ...\n            this.editor.renderer.on('afterRender', function() {\n                var gutter =  wrapper.find('.ace_gutter');\n                if (gutter.hasClass('moodle-has-zindex')) {\n                    return;  // So we only do what follows once.\n                }\n                gutter.addClass('moodle-has-zindex');\n\n                if (focused) {\n                    t.editor.focus();\n                    t.editor.navigateFileEnd();\n                }\n                t.aceLabel = wrapper.find('.answerprompt');\n                t.aceLabel.attr('for', 'ace_' + textareaId);\n\n                t.aceTextarea = wrapper.find('.ace_text-input');\n                t.aceTextarea.attr('id', 'ace_' + textareaId);\n            });\n\n            this.createGaps(code);\n\n            // Intercept commands sent to ace.\n            this.editor.commands.on(\"exec\", function(e) {\n                let cursor = t.editor.selection.getCursor();\n                let commandName = e.command.name;\n                let selectionRange = t.editor.getSelectionRange();\n\n                let gap = t.findCursorGap(cursor);\n\n                if (commandName.startsWith(\"go\")) {  // If command just moves the cursor then do nothing.\n                    if (gap !== null && commandName === \"gotoright\" && cursor.column === gap.range.start.column+gap.textSize) {\n                        // In this case we jump out of gap over the empty space that contains nothing that the user has entered.\n                        t.editor.moveCursorTo(cursor.row, gap.range.end.column+1);\n                    } else {\n                        return;\n                    }\n                }\n\n                if (gap === null) {\n                    // Not in a gap\n                    if (commandName === \"selectall\") {\n                        t.editor.selection.selectAll();\n                    }\n\n                } else if (commandName === \"indent\") {\n                    // Instead of indenting, move to next gap.\n                    let nextGap = t.gaps[(gap.index+1) % t.gaps.length];\n                    t.editor.moveCursorTo(nextGap.range.start.row, nextGap.range.start.column+nextGap.textSize);\n                    t.editor.selection.clearSelection(); // Clear selection.\n\n                } else if (commandName === \"selectall\") {\n                    // Select all text in a gap if we are in a gap.\n                    t.editor.selection.setSelectionRange(new Range(gap.range.start.row,\n                                                         gap.range.start.column,\n                                                         gap.range.start.row,\n                                                         gap.range.end.column), false);\n\n                } else if (t.editor.selection.isEmpty()) {\n                    // User is not selecting multiple characters.\n                    if (commandName === \"insertstring\") {\n                        let char = e.args;\n                        // Only allow user to insert 'valid' chars.\n                        if (validChars.test(char)) {\n                            gap.insertChar(t.gaps, cursor, char);\n                        }\n                    } else if (commandName === \"backspace\") {\n                        // Only delete chars that are actually in the gap.\n                        if (cursor.column > gap.range.start.column && gap.textSize > 0) {\n                            gap.deleteChar(t.gaps, {row: cursor.row, column: cursor.column-1});\n                        }\n                    } else if (commandName === \"del\") {\n                        // Only delete chars that are actually in the gap.\n                        if (cursor.column < gap.range.start.column + gap.textSize && gap.textSize > 0) {\n                            gap.deleteChar(t.gaps, cursor);\n                        }\n                    }\n                    t.editor.selection.clearSelection(); // Keep selection clear.\n\n                } else if (!t.editor.selection.isEmpty() && gap.cursorInGap(selectionRange.start)\n                           && gap.cursorInGap(selectionRange.end)) {\n                    // User is selecting multiple characters and is in a gap.\n\n                    // These are the commands that remove the selected text.\n                    if (commandName === \"insertstring\" || commandName === \"backspace\"\n                        || commandName === \"del\" || commandName === \"paste\"\n                        || commandName === \"cut\") {\n\n                        gap.deleteRange(t.gaps, selectionRange.start.column, selectionRange.end.column);\n                        t.editor.selection.clearSelection(); // Clear selection.\n                    }\n\n                    if (commandName === \"insertstring\") {\n                        let char = e.args;\n                        if (validChars.test(char)) {\n                            gap.insertChar(t.gaps, selectionRange.start, char);\n                        }\n                    }\n                }\n\n                // Paste text into gap.\n                if (gap !== null && commandName === \"paste\") {\n                    gap.insertText(t.gaps, selectionRange.start.column, e.args.text);\n                }\n\n                e.preventDefault();\n                e.stopPropagation();\n            });\n\n            // Move cursor to where it should be if we click on a gap.\n            t.editor.selection.on('changeCursor', function() {\n                let cursor = t.editor.selection.getCursor();\n                let gap = t.findCursorGap(cursor);\n                if (gap !== null) {\n                    if (cursor.column > gap.range.start.column+gap.textSize) {\n                        t.editor.moveCursorTo(gap.range.start.row, gap.range.start.column+gap.textSize);\n                    }\n                }\n            });\n\n            this.gapToSelect = null;    // Stores gap that has been selected with triple click.\n\n            // Select all text in gap on triple click within gap.\n            this.editor.on(\"tripleclick\", function(e) {\n                let cursor = t.editor.selection.getCursor();\n                let gap = t.findCursorGap(cursor);\n                if (gap !== null) {\n                    t.editor.selection.setSelectionRange(new Range(gap.range.start.row,\n                                                                   gap.range.start.column,\n                                                                   gap.range.start.row,\n                                                                   gap.range.end.column), false);\n                    t.gapToSelect = gap;\n                    e.preventDefault();\n                    e.stopPropagation();\n                }\n            });\n\n            // Annoying hack to ensure the tripple click thing works.\n            this.editor.on(\"click\", function(e) {\n                if (t.gapToSelect) {\n                    t.editor.moveCursorTo(t.gapToSelect.range.start.row, t.gapToSelect.range.start.column+t.gapToSelect.textSize);\n                    t.gapToSelect = null;\n                    e.preventDefault();\n                    e.stopPropagation();\n                }\n            });\n\n            this.fail = false;\n            this.reload();\n        }\n        catch(err) {\n            // Something ugly happened. Probably ace editor hasn't been loaded\n            this.fail = true;\n        }\n    }\n\n    /**\n     * The method that creates the gaps at all places containing the appropriate\n     * marker (default {[ ... ]}).\n     * Do not call until after this.editor has been instantiated.\n     * @param {string} code The initial raw text code\n     */\n    AceGapfillerUi.prototype.createGaps = function(code) {\n        this.gaps = [];\n        /**\n         * Escape special characters in a given string.\n         * @param {string} s The input string.\n         * @returns {string} The updated string, with escaped specials.\n         */\n        function reEscape(s) {\n            var c, specials = '{[(*+\\\\', result='';\n            for (var i = 0; i < s.length; i++) {\n                c = s[i];\n                for (var j = 0; j < specials.length; j++) {\n                    if (c === specials[j]) {\n                        c = '\\\\' + c;\n                    }\n                }\n                result += c;\n            }\n            return result;\n        }\n\n        let lines = code.split(/\\r?\\n/);\n\n        let sepLeft = reEscape('{[');\n        let sepRight = reEscape(']}');\n        let splitter = new RegExp(sepLeft + ' *((?:\\\\d+)|(?:\\\\d+- *\\\\d+)) *' + sepRight);\n\n        let editorContent = \"\";\n        for (let i = 0; i < lines.length; i++) {\n            let bits = lines[i].split(splitter);\n            editorContent += bits[0];\n\n            let columnPos = bits[0].length;\n            for (let j = 1; j < bits.length; j += 2) {\n                let values = bits[j].split('-');\n                let minWidth = parseInt(values[0]);\n                let maxWidth = (values.length > 1 ? parseInt(values[1]) : Infinity);\n\n                // Create new gap.\n                let gap = new Gap(this.editor, i, columnPos, minWidth, maxWidth);\n                gap.index = this.nextGapIndex;\n                this.nextGapIndex += 1;\n                this.gaps.push(gap);\n\n                columnPos += minWidth;\n                editorContent += ' '.repeat(minWidth);\n                if (j + 1 < bits.length) {\n                    editorContent += bits[j+1];\n                    columnPos += bits[j+1].length;\n                }\n\n            }\n\n            if (i < lines.length-1) {\n                editorContent += '\\n';\n            }\n        }\n        this.editor.session.setValue(editorContent);\n    };\n\n    /**\n     * Return the gap that the cursor is in. This will actually return a gap if\n     * the cursor is 1 outside the gap as this will be needed for\n     * backspace/insertion to work. Rigth now this is done as a simple\n     * linear search but could be improved later.\n     * @param {object} cursor The ace editor cursor position.\n     * @returns {object} The gap that the cursor is current in, or null otherwise.\n     */\n    AceGapfillerUi.prototype.findCursorGap = function(cursor) {\n        for (let i=0; i < this.gaps.length; i++) {\n            let gap = this.gaps[i];\n            if (gap.cursorInGap(cursor)) {\n                return gap;\n            }\n        }\n        return null;\n    };\n\n    AceGapfillerUi.prototype.failed = function() {\n        return this.fail;\n    };\n\n    AceGapfillerUi.prototype.failMessage = function() {\n        return 'ace_ui_notready';\n    };\n\n\n    // Sync to TextArea\n    AceGapfillerUi.prototype.sync = function() {\n        if (this.fail) {\n            return; // Leave the text area alone if Ace load failed.\n        }\n        let serialisation = [];  // A list of field values.\n        let empty = true;\n\n        for (let i=0; i < this.gaps.length; i++) {\n            let gap = this.gaps[i];\n            let value = gap.getText();\n            serialisation.push(value);\n            if (value !== \"\") {\n                empty = false;\n            }\n        }\n        if (empty) {\n            this.textArea.val('');\n        } else {\n            this.textArea.val(JSON.stringify(serialisation));\n        }\n    };\n\n    // Sync every 2 seconds in case quiz closes automatically without user\n    // action.\n    AceGapfillerUi.prototype.syncIntervalSecs = (() => 2);\n\n    // Reload the HTML fields from the given serialisation.\n    AceGapfillerUi.prototype.reload = function() {\n        let content = this.textArea.val();\n        if (content) {\n            try {\n                let values = JSON.parse(content);\n                for (let i = 0; i < this.gaps.length; i++) {\n                    let value = i < values.length ? values[i]: '???';\n                    this.gaps[i].insertText(this.gaps, this.gaps[i].range.start.column, value);\n                }\n            } catch(e) {\n                // Just ignore errors\n            }\n        }\n    };\n\n    AceGapfillerUi.prototype.setLanguage = function(language) {\n        var session = this.editor.getSession(),\n            mode = this.findMode(language);\n        if (mode) {\n            session.setMode(mode.mode);\n        }\n    };\n\n    AceGapfillerUi.prototype.getElement = function() {\n        return this.editNode;\n    };\n\n    AceGapfillerUi.prototype.captureTab = function () {\n        this.capturingTab = true;\n        this.editor.commands.bindKeys({'Tab': 'indent', 'Shift-Tab': 'outdent'});\n    };\n\n    AceGapfillerUi.prototype.releaseTab = function () {\n        this.capturingTab = false;\n        this.editor.commands.bindKeys({'Tab': null, 'Shift-Tab': null});\n    };\n\n    AceGapfillerUi.prototype.setEventHandlers = function () {\n        var TAB = 9,\n            ESC = 27,\n            KEY_M = 77,\n            t = this;\n\n        this.editor.getSession().on('change', function() {\n            t.contents_changed = true;\n        });\n\n        this.editor.on('blur', function() {\n            if (t.contents_changed) {\n                t.textArea.trigger('change');\n            }\n        });\n\n        this.editor.on('mousedown', function() {\n            // Event order seems to be (\\ is where the mouse button is pressed, / released):\n            // Chrome: \\ mousedown, mouseup, focusin / click.\n            // Firefox/IE: \\ mousedown, focusin / mouseup, click.\n            t.clickInProgress = true;\n        });\n\n        this.editor.on('focus', function() {\n            if (t.clickInProgress) {\n                t.captureTab();\n            } else {\n                t.releaseTab();\n            }\n        });\n\n        this.editor.on('click', function() {\n            t.clickInProgress = false;\n        });\n\n        this.editor.container.addEventListener('keydown', function(e) {\n            if (e.which === undefined || e.which !== 0) { // Normal keypress?\n                if (e.keyCode === KEY_M && e.ctrlKey && !e.altKey) {\n                    if (t.capturingTab) {\n                        t.releaseTab();\n                    } else {\n                        t.captureTab();\n                    }\n                    e.preventDefault(); // Firefox uses this for mute audio in current browser tab.\n                }\n                else if (e.keyCode === ESC) {\n                    t.releaseTab();\n                }\n                else if (!(e.shiftKey || e.ctrlKey || e.altKey || e.keyCode == TAB)) {\n                    t.captureTab();\n                }\n            }\n        }, true);\n    };\n\n    AceGapfillerUi.prototype.destroy = function () {\n        this.sync();\n        var focused;\n        if (!this.fail) {\n            // Proceed only if this wrapper was correctly constructed\n            focused = this.editor.isFocused();\n            this.editor.destroy();\n            $(this.editNode).remove();\n            if (focused) {\n                this.textArea.focus();\n                this.textArea[0].selectionStart = this.textArea[0].value.length;\n            }\n        }\n    };\n\n    AceGapfillerUi.prototype.hasFocus = function() {\n        return this.editor.isFocused();\n    };\n\n    AceGapfillerUi.prototype.findMode = function (language) {\n        var candidate,\n            filename,\n            result,\n            candidates = [], // List of candidate modes.\n            nameMap = {\n                'octave': 'matlab',\n                'nodejs': 'javascript',\n                'c#': 'cs'\n            };\n\n        if (typeof language !== 'string') {\n            return undefined;\n        }\n        if (language.toLowerCase() in nameMap) {\n            language = nameMap[language.toLowerCase()];\n        }\n\n        candidates = [language, language.replace(/\\d+$/, \"\")];\n        for (var i = 0; i < candidates.length; i++) {\n            candidate = candidates[i];\n            filename = \"input.\" + candidate;\n            result = this.modelist.modesByName[candidate] ||\n                this.modelist.modesByName[candidate.toLowerCase()] ||\n                this.modelist.getModeForPath(filename) ||\n                this.modelist.getModeForPath(filename.toLowerCase());\n\n            if (result && result.name !== 'text') {\n                return result;\n            }\n        }\n        return undefined;\n    };\n\n    AceGapfillerUi.prototype.resize = function(w, h) {\n        this.editNode.outerHeight(h);\n        this.editNode.outerWidth(w);\n        this.editor.resize();\n    };\n\n    /**\n     * Constructor for the Gap object that represents a gap in the source code\n     * that the user is expected to fill.\n     * @param {object} editor The Ace Editor object.\n     * @param {int} row The row within the text of the gap.\n     * @param {int} column The column within the text of the gap.\n     * @param {int} minWidth The minimum width (in characters) of the gap.\n     * @param {int} maxWidth The maximum width (in characters) of the gap.\n     */\n    function Gap(editor, row, column, minWidth, maxWidth=Infinity) {\n        this.editor = editor;\n\n        this.minWidth = minWidth;\n        this.maxWidth = maxWidth;\n\n        this.range = new Range(row, column, row, column+minWidth);\n        this.textSize = 0;\n\n        // Create markers\n        this.editor.session.addMarker(this.range, \"ace-gap-outline\", \"text\", true);\n        this.editor.session.addMarker(this.range, \"ace-gap-background\", \"text\", false);\n    }\n\n    Gap.prototype.cursorInGap = function(cursor) {\n        return (cursor.row >= this.range.start.row && cursor.column >= this.range.start.column &&\n                cursor.row <= this.range.end.row && cursor.column <= this.range.end.column);\n    };\n\n    Gap.prototype.getWidth = function() {\n        return (this.range.end.column-this.range.start.column);\n    };\n\n    Gap.prototype.changeWidth = function(gaps, delta) {\n        this.range.end.column += delta;\n\n        // Update any gaps that come after this one on the same line\n        for (let i=0; i < gaps.length; i++) {\n            let other = gaps[i];\n            if (other.range.start.row === this.range.start.row && other.range.start.column > this.range.end.column) {\n                other.range.start.column += delta;\n                other.range.end.column += delta;\n            }\n        }\n\n        this.editor.$onChangeBackMarker();\n        this.editor.$onChangeFrontMarker();\n    };\n\n    Gap.prototype.insertChar = function(gaps, pos, char) {\n        if (this.textSize === this.getWidth() && this.getWidth() < this.maxWidth) {    // Grow the size of gap and insert char.\n            this.changeWidth(gaps, 1);\n            this.textSize += 1;  // Important to record that texSize has increased before insertion.\n            this.editor.session.insert(pos, char);\n        } else if (this.textSize < this.maxWidth) {   // Insert char.\n            this.editor.session.remove(new Range(pos.row, this.range.end.column-1, pos.row, this.range.end.column));\n            this.textSize += 1;  // Important to record that texSize has increased before insertion.\n            this.editor.session.insert(pos, char);\n        }\n    };\n\n    Gap.prototype.deleteChar = function(gaps, pos) {\n        this.textSize -= 1;\n        this.editor.session.remove(new Range(pos.row, pos.column, pos.row, pos.column+1));\n\n        if (this.textSize >= this.minWidth) {\n            this.changeWidth(gaps, -1);  // Shrink the size of the gap.\n        } else {\n            // Put new space at end so everything is shifted across.\n            this.editor.session.insert({row: pos.row, column: this.range.end.column-1}, fillChar);\n        }\n    };\n\n    Gap.prototype.deleteRange = function(gaps, start, end) {\n        for (let i = start; i < end; i++) {\n            if (start < this.range.start.column+this.textSize) {\n                this.deleteChar(gaps, {row: this.range.start.row, column: start});\n            }\n        }\n    };\n\n    Gap.prototype.insertText = function(gaps, start, text) {\n        for (let i = 0; i < text.length; i++) {\n            if (start+i < this.range.start.column+this.maxWidth) {\n                this.insertChar(gaps, {row: this.range.start.row, column: start+i}, text[i]);\n            }\n        }\n    };\n\n    Gap.prototype.getText = function() {\n        return this.editor.session.getTextRange(new Range(this.range.start.row, this.range.start.column,\n                                                this.range.end.row, this.range.start.column+this.textSize));\n\n    };\n\n    return {\n        Constructor: AceGapfillerUi\n    };\n});\n"],"names":["define","$","Range","validChars","AceGapfillerUi","textareaId","w","h","uiParams","textArea","document","getElementById","wrapper","focused","this","activeElement","lang","t","code","gaps","source","ui_source","nextGapIndex","alert","attr","window","ace","require","modelist","enabled","contents_changed","capturingTab","clickInProgress","editNode","css","resize","height","width","editor","edit","get","prop","setReadOnly","setOptions","displayIndentGuides","dragEnabled","enableBasicAutocompletion","newLineMode","$blockScrolling","Infinity","theme","setTheme","setLanguage","setEventHandlers","captureTab","renderer","on","gutter","find","hasClass","addClass","focus","navigateFileEnd","aceLabel","aceTextarea","createGaps","commands","e","cursor","selection","getCursor","commandName","command","name","selectionRange","getSelectionRange","gap","findCursorGap","startsWith","column","range","start","textSize","moveCursorTo","row","end","selectAll","nextGap","index","length","clearSelection","setSelectionRange","isEmpty","char","args","test","insertChar","deleteChar","cursorInGap","deleteRange","insertText","text","preventDefault","stopPropagation","gapToSelect","fail","reload","err","Gap","minWidth","maxWidth","session","addMarker","prototype","reEscape","s","c","result","i","j","lines","split","sepLeft","sepRight","splitter","RegExp","editorContent","bits","columnPos","values","parseInt","push","repeat","setValue","failed","failMessage","sync","serialisation","empty","value","getText","val","JSON","stringify","syncIntervalSecs","content","parse","language","getSession","mode","findMode","setMode","getElement","bindKeys","releaseTab","trigger","container","addEventListener","undefined","which","keyCode","ctrlKey","altKey","shiftKey","destroy","isFocused","remove","selectionStart","hasFocus","candidate","filename","candidates","nameMap","toLowerCase","replace","modesByName","getModeForPath","outerHeight","outerWidth","getWidth","changeWidth","delta","other","$onChangeBackMarker","$onChangeFrontMarker","pos","insert","getTextRange","Constructor"],"mappings":";;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;AAwDAA,2CAAO,CAAC,WAAW,SAASC,OAEpBC,YAEEC,WAAa,4DAUVC,eAAeC,WAAYC,EAAGC,EAAGC,eACjCC,SAAWR,EAAES,SAASC,eAAeN,iBACtCO,QAAUX,EAAES,SAASC,eAAeN,WAAa,aACjDQ,QAAUC,KAAKL,SAAS,KAAOC,SAASK,cACxCC,KAAOR,SAASQ,KAChBC,EAAIH,SAEJI,KAAO,QACNV,SAAWA,cACXW,KAAO,QACPC,OAASZ,SAASa,WAAa,mBAC/BC,aAAe,EACA,gBAAhBR,KAAKM,QAA4C,UAAhBN,KAAKM,SACtCG,MAAM,oDACDH,OAAS,eAGdF,KADe,eAAfJ,KAAKM,OACEN,KAAKL,SAASe,KAAK,oBAEnBV,KAAKL,SAASe,KAAK,kBAI1BC,OAAOC,IAAIC,QAAQ,0BACnBzB,MAAQuB,OAAOC,IAAIC,QAAQ,aAAazB,WACnC0B,SAAWH,OAAOC,IAAIC,QAAQ,yBAE9BE,SAAU,OACVC,kBAAmB,OACnBC,cAAe,OACfC,iBAAkB,OAElBC,SAAWhC,EAAE,oBACbgC,SAASC,IAAI,CACdC,OAAQ,OACRC,OAAQ7B,EACR8B,MAAO,cAGNC,OAASb,OAAOC,IAAIa,KAAKzB,KAAKmB,SAASO,IAAI,IAC5C1B,KAAKL,SAASgC,KAAK,kBACdH,OAAOI,aAAY,QAGvBJ,OAAOK,WAAW,CACnBC,qBAAqB,EACrBC,aAAa,EACbC,2BAA2B,EAC3BC,YAAa,cAEZT,OAAOU,gBAAkBC,EAAAA,EAG1BzC,SAAS0C,WACJZ,OAAOa,SAAS,aAAe3C,SAAS0C,YAExCZ,OAAOa,SAjEA,2BAoEXC,YAAYpC,WAEZqC,iBAAiBvC,KAAKL,eACtB6C,kBAMAhB,OAAOiB,SAASC,GAAG,eAAe,eAC/BC,OAAU7C,QAAQ8C,KAAK,eACvBD,OAAOE,SAAS,uBAGpBF,OAAOG,SAAS,qBAEZ/C,UACAI,EAAEqB,OAAOuB,QACT5C,EAAEqB,OAAOwB,mBAEb7C,EAAE8C,SAAWnD,QAAQ8C,KAAK,iBAC1BzC,EAAE8C,SAASvC,KAAK,MAAO,OAASnB,YAEhCY,EAAE+C,YAAcpD,QAAQ8C,KAAK,mBAC7BzC,EAAE+C,YAAYxC,KAAK,KAAM,OAASnB,qBAGjC4D,WAAW/C,WAGXoB,OAAO4B,SAASV,GAAG,QAAQ,SAASW,OACjCC,OAASnD,EAAEqB,OAAO+B,UAAUC,YAC5BC,YAAcJ,EAAEK,QAAQC,KACxBC,eAAiBzD,EAAEqB,OAAOqC,oBAE1BC,IAAM3D,EAAE4D,cAAcT,WAEtBG,YAAYO,WAAW,MAAO,IAClB,OAARF,KAAgC,cAAhBL,aAA+BH,OAAOW,SAAWH,IAAII,MAAMC,MAAMF,OAAOH,IAAIM,gBAE5FjE,EAAEqB,OAAO6C,aAAaf,OAAOgB,IAAKR,IAAII,MAAMK,IAAIN,OAAO,MAMnD,OAARH,IAEoB,cAAhBL,aACAtD,EAAEqB,OAAO+B,UAAUiB,iBAGpB,GAAoB,WAAhBf,YAA0B,KAE7BgB,QAAUtE,EAAEE,MAAMyD,IAAIY,MAAM,GAAKvE,EAAEE,KAAKsE,QAC5CxE,EAAEqB,OAAO6C,aAAaI,QAAQP,MAAMC,MAAMG,IAAKG,QAAQP,MAAMC,MAAMF,OAAOQ,QAAQL,UAClFjE,EAAEqB,OAAO+B,UAAUqB,sBAEhB,GAAoB,cAAhBnB,YAEPtD,EAAEqB,OAAO+B,UAAUsB,kBAAkB,IAAIzF,MAAM0E,IAAII,MAAMC,MAAMG,IAC1BR,IAAII,MAAMC,MAAMF,OAChBH,IAAII,MAAMC,MAAMG,IAChBR,IAAII,MAAMK,IAAIN,SAAS,QAEzD,GAAI9D,EAAEqB,OAAO+B,UAAUuB,UAAW,IAEjB,iBAAhBrB,YAAgC,KAC5BsB,KAAO1B,EAAE2B,KAET3F,WAAW4F,KAAKF,OAChBjB,IAAIoB,WAAW/E,EAAEE,KAAMiD,OAAQyB,UAEZ,cAAhBtB,YAEHH,OAAOW,OAASH,IAAII,MAAMC,MAAMF,QAAUH,IAAIM,SAAW,GACzDN,IAAIqB,WAAWhF,EAAEE,KAAM,CAACiE,IAAKhB,OAAOgB,IAAKL,OAAQX,OAAOW,OAAO,IAE5C,QAAhBR,aAEHH,OAAOW,OAASH,IAAII,MAAMC,MAAMF,OAASH,IAAIM,UAAYN,IAAIM,SAAW,GACxEN,IAAIqB,WAAWhF,EAAEE,KAAMiD,QAG/BnD,EAAEqB,OAAO+B,UAAUqB,sBAEhB,IAAKzE,EAAEqB,OAAO+B,UAAUuB,WAAahB,IAAIsB,YAAYxB,eAAeO,QAC7DL,IAAIsB,YAAYxB,eAAeW,OAIrB,iBAAhBd,aAAkD,cAAhBA,aACf,QAAhBA,aAAyC,UAAhBA,aACT,QAAhBA,cAEHK,IAAIuB,YAAYlF,EAAEE,KAAMuD,eAAeO,MAAMF,OAAQL,eAAeW,IAAIN,QACxE9D,EAAEqB,OAAO+B,UAAUqB,kBAGH,iBAAhBnB,aAAgC,KAC5BsB,KAAO1B,EAAE2B,KACT3F,WAAW4F,KAAKF,OAChBjB,IAAIoB,WAAW/E,EAAEE,KAAMuD,eAAeO,MAAOY,MAM7C,OAARjB,KAAgC,UAAhBL,aAChBK,IAAIwB,WAAWnF,EAAEE,KAAMuD,eAAeO,MAAMF,OAAQZ,EAAE2B,KAAKO,MAG/DlC,EAAEmC,iBACFnC,EAAEoC,qBAINtF,EAAEqB,OAAO+B,UAAUb,GAAG,gBAAgB,eAC9BY,OAASnD,EAAEqB,OAAO+B,UAAUC,YAC5BM,IAAM3D,EAAE4D,cAAcT,QACd,OAARQ,KACIR,OAAOW,OAASH,IAAII,MAAMC,MAAMF,OAAOH,IAAIM,UAC3CjE,EAAEqB,OAAO6C,aAAaP,IAAII,MAAMC,MAAMG,IAAKR,IAAII,MAAMC,MAAMF,OAAOH,IAAIM,kBAK7EsB,YAAc,UAGdlE,OAAOkB,GAAG,eAAe,SAASW,OAC/BC,OAASnD,EAAEqB,OAAO+B,UAAUC,YAC5BM,IAAM3D,EAAE4D,cAAcT,QACd,OAARQ,MACA3D,EAAEqB,OAAO+B,UAAUsB,kBAAkB,IAAIzF,MAAM0E,IAAII,MAAMC,MAAMG,IAChBR,IAAII,MAAMC,MAAMF,OAChBH,IAAII,MAAMC,MAAMG,IAChBR,IAAII,MAAMK,IAAIN,SAAS,GACtE9D,EAAEuF,YAAc5B,IAChBT,EAAEmC,iBACFnC,EAAEoC,2BAKLjE,OAAOkB,GAAG,SAAS,SAASW,GACzBlD,EAAEuF,cACFvF,EAAEqB,OAAO6C,aAAalE,EAAEuF,YAAYxB,MAAMC,MAAMG,IAAKnE,EAAEuF,YAAYxB,MAAMC,MAAMF,OAAO9D,EAAEuF,YAAYtB,UACpGjE,EAAEuF,YAAc,KAChBrC,EAAEmC,iBACFnC,EAAEoC,2BAILE,MAAO,OACPC,SAET,MAAMC,UAEGF,MAAO,YA6RXG,IAAItE,OAAQ8C,IAAKL,OAAQ8B,cAAUC,gEAAS7D,EAAAA,OAC5CX,OAASA,YAETuE,SAAWA,cACXC,SAAWA,cAEX9B,MAAQ,IAAI9E,MAAMkF,IAAKL,OAAQK,IAAKL,OAAO8B,eAC3C3B,SAAW,OAGX5C,OAAOyE,QAAQC,UAAUlG,KAAKkE,MAAO,kBAAmB,QAAQ,QAChE1C,OAAOyE,QAAQC,UAAUlG,KAAKkE,MAAO,qBAAsB,QAAQ,UA9R5E5E,eAAe6G,UAAUhD,WAAa,SAAS/C,eAOlCgG,SAASC,WACVC,EAAyBC,OAAO,GAC3BC,EAAI,EAAGA,EAAIH,EAAE1B,OAAQ6B,IAAK,CAC/BF,EAAID,EAAEG,OACD,IAAIC,EAAI,EAAGA,EAHF,UAGe9B,OAAQ8B,IAC7BH,IAJM,UAISG,KACfH,EAAI,KAAOA,GAGnBC,QAAUD,SAEPC,YAjBNlG,KAAO,OAoBRqG,MAAQtG,KAAKuG,MAAM,SAEnBC,QAAUR,SAAS,MACnBS,SAAWT,SAAS,MACpBU,SAAW,IAAIC,OAAOH,QAAU,iCAAmCC,UAEnEG,cAAgB,OACf,IAAIR,EAAI,EAAGA,EAAIE,MAAM/B,OAAQ6B,IAAK,KAC/BS,KAAOP,MAAMF,GAAGG,MAAMG,UAC1BE,eAAiBC,KAAK,OAElBC,UAAYD,KAAK,GAAGtC,WACnB,IAAI8B,EAAI,EAAGA,EAAIQ,KAAKtC,OAAQ8B,GAAK,EAAG,KACjCU,OAASF,KAAKR,GAAGE,MAAM,KACvBZ,SAAWqB,SAASD,OAAO,IAC3BnB,SAAYmB,OAAOxC,OAAS,EAAIyC,SAASD,OAAO,IAAMhF,EAAAA,EAGtD2B,IAAM,IAAIgC,IAAI9F,KAAKwB,OAAQgF,EAAGU,UAAWnB,SAAUC,UACvDlC,IAAIY,MAAQ1E,KAAKQ,kBACZA,cAAgB,OAChBH,KAAKgH,KAAKvD,KAEfoD,WAAanB,SACbiB,eAAiB,IAAIM,OAAOvB,UACxBU,EAAI,EAAIQ,KAAKtC,SACbqC,eAAiBC,KAAKR,EAAE,GACxBS,WAAaD,KAAKR,EAAE,GAAG9B,QAK3B6B,EAAIE,MAAM/B,OAAO,IACjBqC,eAAiB,WAGpBxF,OAAOyE,QAAQsB,SAASP,gBAWjC1H,eAAe6G,UAAUpC,cAAgB,SAAST,YACzC,IAAIkD,EAAE,EAAGA,EAAIxG,KAAKK,KAAKsE,OAAQ6B,IAAK,KACjC1C,IAAM9D,KAAKK,KAAKmG,MAChB1C,IAAIsB,YAAY9B,eACTQ,WAGR,MAGXxE,eAAe6G,UAAUqB,OAAS,kBACvBxH,KAAK2F,MAGhBrG,eAAe6G,UAAUsB,YAAc,iBAC5B,mBAKXnI,eAAe6G,UAAUuB,KAAO,cACxB1H,KAAK2F,gBAGLgC,cAAgB,GAChBC,OAAQ,MAEP,IAAIpB,EAAE,EAAGA,EAAIxG,KAAKK,KAAKsE,OAAQ6B,IAAK,KAEjCqB,MADM7H,KAAKK,KAAKmG,GACJsB,UAChBH,cAAcN,KAAKQ,OACL,KAAVA,QACAD,OAAQ,GAGZA,WACKjI,SAASoI,IAAI,SAEbpI,SAASoI,IAAIC,KAAKC,UAAUN,iBAMzCrI,eAAe6G,UAAU+B,iBAAoB,IAAM,EAGnD5I,eAAe6G,UAAUP,OAAS,eAC1BuC,QAAUnI,KAAKL,SAASoI,SACxBI,gBAEQhB,OAASa,KAAKI,MAAMD,aACnB,IAAI3B,EAAI,EAAGA,EAAIxG,KAAKK,KAAKsE,OAAQ6B,IAAK,KACnCqB,MAAQrB,EAAIW,OAAOxC,OAASwC,OAAOX,GAAI,WACtCnG,KAAKmG,GAAGlB,WAAWtF,KAAKK,KAAML,KAAKK,KAAKmG,GAAGtC,MAAMC,MAAMF,OAAQ4D,QAE1E,MAAMxE,MAMhB/D,eAAe6G,UAAU7D,YAAc,SAAS+F,cACxCpC,QAAUjG,KAAKwB,OAAO8G,aACtBC,KAAOvI,KAAKwI,SAASH,UACrBE,MACAtC,QAAQwC,QAAQF,KAAKA,OAI7BjJ,eAAe6G,UAAUuC,WAAa,kBAC3B1I,KAAKmB,UAGhB7B,eAAe6G,UAAU3D,WAAa,gBAC7BvB,cAAe,OACfO,OAAO4B,SAASuF,SAAS,KAAQ,qBAAuB,aAGjErJ,eAAe6G,UAAUyC,WAAa,gBAC7B3H,cAAe,OACfO,OAAO4B,SAASuF,SAAS,KAAQ,iBAAmB,QAG7DrJ,eAAe6G,UAAU5D,iBAAmB,eAIpCpC,EAAIH,UAEHwB,OAAO8G,aAAa5F,GAAG,UAAU,WAClCvC,EAAEa,kBAAmB,UAGpBQ,OAAOkB,GAAG,QAAQ,WACfvC,EAAEa,kBACFb,EAAER,SAASkJ,QAAQ,kBAItBrH,OAAOkB,GAAG,aAAa,WAIxBvC,EAAEe,iBAAkB,UAGnBM,OAAOkB,GAAG,SAAS,WAChBvC,EAAEe,gBACFf,EAAEqC,aAEFrC,EAAEyI,qBAILpH,OAAOkB,GAAG,SAAS,WACpBvC,EAAEe,iBAAkB,UAGnBM,OAAOsH,UAAUC,iBAAiB,WAAW,SAAS1F,QACvC2F,IAAZ3F,EAAE4F,OAAmC,IAAZ5F,EAAE4F,QAjCvB,KAkCA5F,EAAE6F,SAAqB7F,EAAE8F,UAAY9F,EAAE+F,QACnCjJ,EAAEc,aACFd,EAAEyI,aAEFzI,EAAEqC,aAENa,EAAEmC,kBAzCJ,KA2COnC,EAAE6F,QACP/I,EAAEyI,aAEKvF,EAAEgG,UAAYhG,EAAE8F,SAAW9F,EAAE+F,QA/CtC,GA+CgD/F,EAAE6F,SAChD/I,EAAEqC,iBAGX,IAGPlD,eAAe6G,UAAUmD,QAAU,eAE3BvJ,aADC2H,OAEA1H,KAAK2F,OAEN5F,QAAUC,KAAKwB,OAAO+H,iBACjB/H,OAAO8H,UACZnK,EAAEa,KAAKmB,UAAUqI,SACbzJ,eACKJ,SAASoD,aACTpD,SAAS,GAAG8J,eAAiBzJ,KAAKL,SAAS,GAAGkI,MAAMlD,UAKrErF,eAAe6G,UAAUuD,SAAW,kBACzB1J,KAAKwB,OAAO+H,aAGvBjK,eAAe6G,UAAUqC,SAAW,SAAUH,cACtCsB,UACAC,SACArD,OACAsD,WACAC,QAAU,QACI,gBACA,kBACJ,SAGU,iBAAbzB,UAGPA,SAAS0B,gBAAiBD,UAC1BzB,SAAWyB,QAAQzB,SAAS0B,gBAGhCF,WAAa,CAACxB,SAAUA,SAAS2B,QAAQ,OAAQ,SAC5C,IAAIxD,EAAI,EAAGA,EAAIqD,WAAWlF,OAAQ6B,OAEnCoD,SAAW,UADXD,UAAYE,WAAWrD,KAEvBD,OAASvG,KAAKc,SAASmJ,YAAYN,YAC/B3J,KAAKc,SAASmJ,YAAYN,UAAUI,gBACpC/J,KAAKc,SAASoJ,eAAeN,WAC7B5J,KAAKc,SAASoJ,eAAeN,SAASG,iBAEZ,SAAhBxD,OAAO5C,YACV4C,SAMnBjH,eAAe6G,UAAU9E,OAAS,SAAS7B,EAAGC,QACrC0B,SAASgJ,YAAY1K,QACrB0B,SAASiJ,WAAW5K,QACpBgC,OAAOH,UA0BhByE,IAAIK,UAAUf,YAAc,SAAS9B,eACzBA,OAAOgB,KAAOtE,KAAKkE,MAAMC,MAAMG,KAAOhB,OAAOW,QAAUjE,KAAKkE,MAAMC,MAAMF,QACxEX,OAAOgB,KAAOtE,KAAKkE,MAAMK,IAAID,KAAOhB,OAAOW,QAAUjE,KAAKkE,MAAMK,IAAIN,QAGhF6B,IAAIK,UAAUkE,SAAW,kBACbrK,KAAKkE,MAAMK,IAAIN,OAAOjE,KAAKkE,MAAMC,MAAMF,QAGnD6B,IAAIK,UAAUmE,YAAc,SAASjK,KAAMkK,YAClCrG,MAAMK,IAAIN,QAAUsG,UAGpB,IAAI/D,EAAE,EAAGA,EAAInG,KAAKsE,OAAQ6B,IAAK,KAC5BgE,MAAQnK,KAAKmG,GACbgE,MAAMtG,MAAMC,MAAMG,MAAQtE,KAAKkE,MAAMC,MAAMG,KAAOkG,MAAMtG,MAAMC,MAAMF,OAASjE,KAAKkE,MAAMK,IAAIN,SAC5FuG,MAAMtG,MAAMC,MAAMF,QAAUsG,MAC5BC,MAAMtG,MAAMK,IAAIN,QAAUsG,YAI7B/I,OAAOiJ,2BACPjJ,OAAOkJ,wBAGhB5E,IAAIK,UAAUjB,WAAa,SAAS7E,KAAMsK,IAAK5F,MACvC/E,KAAKoE,WAAapE,KAAKqK,YAAcrK,KAAKqK,WAAarK,KAAKgG,eACvDsE,YAAYjK,KAAM,QAClB+D,UAAY,OACZ5C,OAAOyE,QAAQ2E,OAAOD,IAAK5F,OACzB/E,KAAKoE,SAAWpE,KAAKgG,gBACvBxE,OAAOyE,QAAQuD,OAAO,IAAIpK,MAAMuL,IAAIrG,IAAKtE,KAAKkE,MAAMK,IAAIN,OAAO,EAAG0G,IAAIrG,IAAKtE,KAAKkE,MAAMK,IAAIN,cAC1FG,UAAY,OACZ5C,OAAOyE,QAAQ2E,OAAOD,IAAK5F,QAIxCe,IAAIK,UAAUhB,WAAa,SAAS9E,KAAMsK,UACjCvG,UAAY,OACZ5C,OAAOyE,QAAQuD,OAAO,IAAIpK,MAAMuL,IAAIrG,IAAKqG,IAAI1G,OAAQ0G,IAAIrG,IAAKqG,IAAI1G,OAAO,IAE1EjE,KAAKoE,UAAYpE,KAAK+F,cACjBuE,YAAYjK,MAAO,QAGnBmB,OAAOyE,QAAQ2E,OAAO,CAACtG,IAAKqG,IAAIrG,IAAKL,OAAQjE,KAAKkE,MAAMK,IAAIN,OAAO,GA7jB/D,MAikBjB6B,IAAIK,UAAUd,YAAc,SAAShF,KAAM8D,MAAOI,SACzC,IAAIiC,EAAIrC,MAAOqC,EAAIjC,IAAKiC,IACrBrC,MAAQnE,KAAKkE,MAAMC,MAAMF,OAAOjE,KAAKoE,eAChCe,WAAW9E,KAAM,CAACiE,IAAKtE,KAAKkE,MAAMC,MAAMG,IAAKL,OAAQE,SAKtE2B,IAAIK,UAAUb,WAAa,SAASjF,KAAM8D,MAAOoB,UACxC,IAAIiB,EAAI,EAAGA,EAAIjB,KAAKZ,OAAQ6B,IACzBrC,MAAMqC,EAAIxG,KAAKkE,MAAMC,MAAMF,OAAOjE,KAAKgG,eAClCd,WAAW7E,KAAM,CAACiE,IAAKtE,KAAKkE,MAAMC,MAAMG,IAAKL,OAAQE,MAAMqC,GAAIjB,KAAKiB,KAKrFV,IAAIK,UAAU2B,QAAU,kBACb9H,KAAKwB,OAAOyE,QAAQ4E,aAAa,IAAIzL,MAAMY,KAAKkE,MAAMC,MAAMG,IAAKtE,KAAKkE,MAAMC,MAAMF,OACjDjE,KAAKkE,MAAMK,IAAID,IAAKtE,KAAKkE,MAAMC,MAAMF,OAAOjE,KAAKoE,YAItF,CACH0G,YAAaxL"}
\ No newline at end of file
diff --git a/amd/src/ui_ace_gapfiller.js b/amd/src/ui_ace_gapfiller.js
index c1923358b..101c1c69c 100644
--- a/amd/src/ui_ace_gapfiller.js
+++ b/amd/src/ui_ace_gapfiller.js
@@ -58,7 +58,7 @@ define(['jquery'], function($) {
 
     var Range;  // Can't load this until ace has loaded.
     const fillChar = " ";
-    const validChars = /[ !"#$%&'()*+,`\-./0-9:;<=>?@A-Z\[\]\\^_a-z{}|~]/;
+    const validChars = /[ !"#$%&'()*+,`\-./0-9\p{L}:;<=>?@\[\]\\^_{}|~]/u;
     const ACE_LIGHT_THEME = 'ace/theme/textmate';
 
     /**