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e[0]}};r["var"]=function(e){return function(t){if(e[0]=="pi")return Math.PI;if(e[0]=="e")return Math.E;return t[e[0]]}};r["exponential"]=function(e){return function(t){return Math.pow(e[0](t),e[1](t))}};r["squareroot"]=function(e){return function(t){return Math.sqrt(e[0](t))}};r["absolutevalue"]=function(e){return function(t){return Math.abs(e[0](t))}};r["sin"]=function(e){return function(t){return Math.sin(e[0](t))}};r["cos"]=function(e){return function(t){return Math.cos(e[0](t))}};r["tan"]=function(e){return function(t){return Math.tan(e[0](t))}};r["log"]=function(e){return function(t){return Math.log(e[0](t))}};for(var i in r)if(!t[i])t[i]=r[i];return{function:n.eval(e,t),vars:n.get_vars(e)}};n.eval=function(e,t,r){s=null;if(!t["_default"])t["_default"]=function(e,t){throw Error("Function not implemented: "+e+"("+t+")")};var i=[];for(var a=0;a<e[1].length;a++){if(Object.prototype.toString.call(e[1][a])==="[object Array]"){i.push(n.eval(e[1][a],t,e))}else{i.push(e[1][a])}}var s=null;if(t[e[0]])s=t[e[0]](i,r);else if(t["_default"])s=t["_default"](e[0],i,r);return s};t.exports=n},{}],4:[function(e,t,r){var n=e("../lib/katex/katex-modified.min.js");var i=e("./ast.js");var a=e("./symbols.js");var s=e("./utils.js");var o=e("./parser.js");var l=e("./version.js");var u=function(e,t){t=t||"xml";if(t=="xml")this.set_content(e||"<m><e></e></m>");else if(t=="latex")this.import_latex(e);else if(t=="text")this.import_text(e);else if(t=="ast")this.import_ast(e);if(this.root().hasAttribute("v")&&this.root().getAttribute("v")!=l.DOC_VERSION)throw l.DOC_ERROR;else this.root().setAttribute("v",l.DOC_VERSION)};u.prototype.is_small=function(e){var t=e.parentNode;while(t!=null&&t.nodeName!="m"){if(t.getAttribute("small")=="yes")return true;t=t.parentNode;while(t!=null&&t.nodeName!="c")t=t.parentNode}return false};u.prototype.ensure_text_nodes=function(){var e=this.base.getElementsByTagName("e");for(var t=0;t<e.length;t++){if(!e[t].firstChild)e[t].appendChild(this.base.createTextNode(""))}};u.prototype.is_blank=function(){if(this.base.getElementsByTagName("f").length>0)return false;var e=this.base.getElementsByTagName("e");if(e.length==1&&(!e[0].firstChild||e[0].firstChild.textContent==""))return true;return false};u.prototype.root=function(){return this.base.documentElement};u.prototype.get_content=function(e,t){if(e=="xml")return(new XMLSerializer).serializeToString(this.base);else if(e=="ast")return JSON.stringify(this.syntax_tree());else if(e=="text")return i.to_text(this.syntax_tree());else if(e=="function")return i.to_function(this.syntax_tree());else if(e=="eqns")return JSON.stringify(i.to_eqlist(this.syntax_tree()));else return this.manual_render(e,this.root(),t)};u.prototype.evaluate=function(e){return i.eval(this.syntax_tree(),e)};u.prototype.import_text=function(e,t,r){var n=o.TextParser.tokenise_and_parse(e);this.import_ast(n,t,r)};u.prototype.import_latex=function(e,t,r){var n=o.LaTeXParser.tokenise_and_parse(e);this.import_ast(n,t,r)};u.prototype.import_ast=function(e,t,r){t=t||a.symbols;r=r||a.symbol_to_node;var n=i.to_xml(e,t,r);this.base=n;this.ensure_text_nodes()};u.prototype.syntax_tree=function(e){e=e||this.root();if(e.nodeName=="f"){var t={args:[],kwargs:{}};t["value"]=e.getAttribute("type");t["type"]="function";if(e.hasAttribute("ast_value"))t["value"]=e.getAttribute("ast_value");if(e.hasAttribute("ast_type"))t["type"]=e.getAttribute("ast_type");else if(s.is_char(e))t["type"]="name";var r=this.xpath_list("./*[name()='c' or name()='l']",e);for(var n=r.iterateNext();n!=null;n=r.iterateNext()){t.args.push(this.syntax_tree(n))}}else if(e.nodeName=="l"){t=[];for(n=e.firstChild;n!=null;n=n.nextSibling){t.push(this.syntax_tree(n))}t=["list",t]}else if(e.nodeName=="c"||e.nodeName=="m"){if(e.hasAttribute("mode")&&e.getAttribute("mode")=="text"){t=e.firstChild.firstChild.textContent}else{var i=[];for(n=e.firstChild;n!=null;n=n.nextSibling){if(n.nodeName=="e"){i=i.concat(o.EParser.tokenise(n.firstChild.textContent))}else if(n.nodeName=="f"){i.push(this.syntax_tree(n))}}t=o.EParser.parse(i)}}return t};u.prototype.xpath_node=function(e,t){t=t||this.root();return this.base.evaluate(e,t,null,XPathResult.FIRST_ORDERED_NODE_TYPE,null).singleNodeValue};u.prototype.xpath_list=function(e,t){t=t||this.root();return this.base.evaluate(e,t,null,XPathResult.ORDERED_NODE_ITERATOR_TYPE,null)};u.prototype.get_symbols=function(e){var t={};var r=[];var n="//f";if(e)n+="["+e.map(function(){return""}).join(" or ")+"]";var i=this.xpath_list(n);for(var a=i.iterateNext();a!=null;a=i.iterateNext())t[a.getAttribute("type")]=true;for(var s in t)r.push(s);return r};u.prototype.set_content=function(e){this.base=(new window.DOMParser).parseFromString(e,"text/xml");this.ensure_text_nodes()};u.prototype.auto_bracket=function(e){var t=e.firstChild;var r=e.lastChild;if(e.childElementCount==3&&t.firstChild.textContent==""&&r.firstChild.textContent==""){var n=t.nextSibling;var i=0;var a=null;for(var o=n.firstChild;o;o=o.nextSibling)if(o.tagName=="c"){a=o;i++}if(i==1&&a.getAttribute("is_bracket")=="yes")return false;if(s.is_char(n)&&t.getAttribute("current")!="yes"&&t.getAttribute("temp")!="yes"&&r.getAttribute("current")!="yes"&&r.getAttribute("temp")!="yes")return false}else if(e.childElementCount==1){var l=t.firstChild.textContent;if(l.length!=1&&Number(l)+""!=l)return true;if(t.getAttribute("current")=="yes"||t.getAttribute("temp")=="yes")return true;return false}return true};u.prototype.manual_render=function(e,t,r){var n="";var i=null;var a=null;var s=e=="latex"?" ":"";if(t.nodeName=="e"){if(e=="latex"&&r){n=t.getAttribute("render")}else{n=t.firstChild.textContent}}else if(t.nodeName=="f"){var o=e=="latex"&&this.is_small(t)?"small_latex":e;i=this.xpath_node("./b[@p='"+o+"']",t)||this.xpath_node("./b[@p='"+e+"']",t);if(i)n=this.manual_render(e,i,r)}else if(t.nodeName=="b"){var l=[];a=1;var u=t.parentNode;for(i=u.firstChild;i!=null;i=i.nextSibling)if(i.nodeName=="c"||i.nodeName=="l")l[a++]=this.manual_render(e,i,r);for(i=t.firstChild;i!=null;i=i.nextSibling){if(i.nodeType==3)n+=i.textContent+s;else if(i.nodeType==1){if(i.hasAttribute("d")){var f=parseInt(i.getAttribute("d"));var c=function(e,t){if(e>1)for(var r=0;r<t.length;r++)t[r]=c(e-1,t[r]);return t.join(i.getAttribute("sep"+(e-1)))};n+=c(f,l[parseInt(i.getAttribute("ref"))])+s}else n+=l[parseInt(i.getAttribute("ref"))]+s}}}else if(t.nodeName=="l"){n=[];a=0;for(i=t.firstChild;i!=null;i=i.nextSibling){n[a++]=this.manual_render(e,i,r)}}else if(t.nodeName=="c"||t.nodeName=="m"){for(i=t.firstChild;i!=null;i=i.nextSibling)n+=this.manual_render(e,i,r)+s;if(e=="latex"&&t.getAttribute("bracket")=="yes"&&this.auto_bracket(t)){n="\\left("+n+"\\right)"}}return n};u.render_all=function(e,t){var r,i,a,s,o,l=[];if(!e||e=="xml"){r=document.getElementsByTagName("script");for(i=0;i<r.length;i++){if(r[i].getAttribute("type")=="text/guppy_xml"){a=r[i];s=new u(a.innerHTML);o=document.createElement("span");var f=l.length;var c="guppy-"+e+"-render-"+f;while(document.getElementById(c))c="guppy-xml-render-"+ ++f;o.setAttribute("id",c);o.setAttribute("class","guppy-render");n.render(s.get_content("latex"),o);a.parentNode.insertBefore(o,a);a.parentNode.removeChild(a);l.push({container:o,doc:s})}}}else{var d=function(r){if(!r)return;var i=["script","style","iframe","canvas"];do{switch(r.nodeType){case 1:if(i.indexOf(r.tagName.toLowerCase())>-1||(" "+r.getAttribute("class")+" ").indexOf(" katex ")>-1||(""+r.getAttribute("class")).indexOf("guppy")>-1){continue}d(r.firstChild);break;case 3:var a=r;var o=a.textContent.indexOf(t);while(o>-1){var f=a.textContent.substring(o+t.length).indexOf(t);if(f==-1)break;var c=a.textContent.substring(0,o);var h=a.textContent.substring(o+t.length,o+t.length+f);var p=a.textContent.substring(o+t.length+f+t.length);var v=document.createElement("span");var m=l.length;var g="guppy-"+e+"-render-"+m;while(document.getElementById(g))g="guppy-"+e+"-render-"+ ++m;v.setAttribute("id",g);v.setAttribute("class","guppy-render");try{s=new u(h,e);n.render(s.get_content("latex"),v)}catch(e){v.innerHTML="ERROR: "+e.message}var b=document.createTextNode(p);a.parentNode.insertBefore(document.createTextNode(c),a);a.parentNode.insertBefore(v,a);a.parentNode.insertBefore(b,a);a.parentNode.removeChild(a);a=b;l.push({id:g,doc:s});o=a.textContent.indexOf(t)}break;default:break}}while(r=r.nextSibling)};t=t||"$$";d(document.documentElement)}return l};u.render=function(e,t){var r=new u(e);var i=document.getElementById(t);n.render(r.get_content("latex"),i);return{container:i,doc:r}};t.exports=u},{"../lib/katex/katex-modified.min.js":1,"./ast.js":3,"./parser.js":7,"./symbols.js":9,"./utils.js":10,"./version.js":11}],5:[function(e,t,r){var n=e("./utils.js");var i=e("./doc.js");var a=e("./symbols.js");var s=e("./settings.js");String.prototype.splice=function(e,t){return this.slice(0,e)+t+this.slice(e)};String.prototype.splicen=function(e,t,r){return this.slice(0,e)+t+this.slice(e+r)};String.prototype.search_at=function(e,t){return this.substring(e-t.length,e)==t};var o=function(e){e=e||{};var t=e["events"]||{};var r=e["settings"]||{};this.parent=e["parent"];this.id=this.parent.editor.id;this.ready=false;this.events={};this.settings={};var n=["ready","change","left_end","right_end","done","completion","debug","error","focus"];for(var s=0;s<n.length;s++){var l=n[s];if(l in t)this.events[l]=l in t?t[l]:null}var u=["blank_caret","empty_content","blacklist","autoreplace","cliptype"];for(var f=0;f<u.length;f++){var c=u[f];if(c in r)this.settings[c]=r[c]}this.symbols={};this.doc=new i(r["xml_content"]);this.current=this.doc.root().firstChild;this.caret=0;this.space_caret=0;this.sel_start=null;this.sel_end=null;this.undo_data=[];this.undo_now=-1;this.sel_status=o.SEL_NONE;this.checkpoint();if(o.ready&&!this.ready){this.ready=true;this.symbols=JSON.parse(JSON.stringify(a.symbols));this.fire_event("ready")}};o.ready=false;o.SEL_NONE=0;o.SEL_CURSOR_AT_START=1;o.SEL_CURSOR_AT_END=2;o.clipboard=null;o.prototype.setting=function(e){return e in this.settings?this.settings[e]:s.config.settings[e]};o.prototype.event=function(e){return e in this.events?this.events[e]:s.config.events[e]};o.prototype.get_content=function(e,t){return this.doc.get_content(e,t)};o.prototype.set_content=function(e){this.set_doc(new i(e))};o.prototype.set_doc=function(e){this.doc=e;this.current=this.doc.root().firstChild;this.caret=0;this.sel_start=null;this.sel_end=null;this.undo_data=[];this.undo_now=-1;this.sel_status=o.SEL_NONE;this.checkpoint()};o.prototype.import_text=function(e){this.doc.import_text(e,this.symbols);this.set_doc(this.doc)};o.prototype.import_latex=function(e){this.doc.import_latex(e,this.symbols);this.set_doc(this.doc)};o.prototype.import_ast=function(e){this.doc.import_ast(e,this.symbols);this.set_doc(this.doc)};o.prototype.fire_event=function(e,t){t=t||{};t.target=this.parent||this;t.type=e;var r=this.event(e);if(r&&this.ready&&o.ready)r(t)};o.prototype.remove_symbol=function(e){if(this.symbols[e])delete this.symbols[e]};o.prototype.add_symbol=function(e,t){this.symbols[e]=t};o.prototype.select_to=function(e,t,r,n){if(e.current==t&&e.caret==r){this.current=e.current;this.caret=e.caret;this.sel_status=o.SEL_NONE}else if(e.pos=="left"){this.sel_end={node:t,caret:r};this.current=e.current;this.caret=e.caret;this.set_sel_boundary(o.SEL_CURSOR_AT_START,n)}else if(e.pos=="right"){this.sel_start={node:t,caret:r};this.current=e.current;this.caret=e.caret;this.set_sel_boundary(o.SEL_CURSOR_AT_END,n)}};o.prototype.set_sel_start=function(){this.sel_start={node:this.current,caret:this.caret}};o.prototype.set_sel_end=function(){this.sel_end={node:this.current,caret:this.caret}};o.prototype.add_paths=function(e,t){if(e.nodeName=="e"){e.setAttribute("path",t)}else{var r=1,n=1,i=1,a=1;for(var s=e.firstChild;s!=null;s=s.nextSibling){if(s.nodeName=="c"){this.add_paths(s,t+"_c"+i);i++}else if(s.nodeName=="f"){this.add_paths(s,t+"_f"+n);n++}else if(s.nodeName=="l"){this.add_paths(s,t+"_l"+a);a++}else if(s.nodeName=="e"){this.add_paths(s,t+"_e"+r);r++}}}};o.prototype.add_classes_cursors=function(e){if(e.nodeName=="e"){var t=e.firstChild.nodeValue;var r="";var i;var a=n.is_text(e);if(this.sel_status==o.SEL_CURSOR_AT_START)i=this.sel_end;if(this.sel_status==o.SEL_CURSOR_AT_END)i=this.sel_start;if(this.sel_status!=o.SEL_NONE){var s=n.is_small(i.node)?n.SMALL_SEL_CARET:n.SEL_CARET;if(!a&&t.length==0&&e.parentNode.childElementCount>1){s="\\blue{\\xmlClass{guppy_elt guppy_blank guppy_loc_"+e.getAttribute("path")+"_0}{"+s+"}}"}else{s="\\blue{"+s+"}"}if(this.sel_status==o.SEL_CURSOR_AT_END)s=a?"[":s+"\\"+n.SEL_COLOR+"{";if(this.sel_status==o.SEL_CURSOR_AT_START)s=a?"]":"}"+s}var l="";var u="";if(t.length==0){if(a)l="\\_";else if(e.parentNode.childElementCount==1){if(this.current==e){var f=this.setting("blank_caret")||(n.is_small(this.current)?n.SMALL_CARET:n.CARET);r="\\red{\\xmlClass{main_cursor guppy_elt guppy_blank guppy_loc_"+e.getAttribute("path")+"_0"+"}{"+f+"}}"}else if(this.temp_cursor.node==e)r="\\gray{\\xmlClass{guppy_elt guppy_blank guppy_loc_"+e.getAttribute("path")+"_0"+"}{[?]}}";else r="\\blue{\\xmlClass{guppy_elt guppy_blank 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if(this.temp_cursor.node==e&&c==this.temp_cursor.caret&&(t.length>0||e.parentNode.childElementCount>1)){if(a)u=".";else{u=n.is_small(this.current)?n.TEMP_SMALL_CARET:n.TEMP_CARET;if(t.length==0){u="\\gray{\\xmlClass{guppy_elt guppy_blank guppy_loc_"+e.getAttribute("path")+"_0}{"+u+"}}"}else u="\\gray{"+u+"}"}r+=u}if(c<t.length)r+="\\xmlClass{guppy_elt guppy_loc_"+e.getAttribute("path")+"_"+c+"}{"+t[c]+"}"}if(a&&e==this.current){r="\\xmlClass{guppy_text_current}{{"+r+"}}"}e.setAttribute("render",r);e.removeAttribute("path")}else{for(var d=e.firstChild;d!=null;d=d.nextSibling){if(d.nodeName=="c"||d.nodeName=="l"||d.nodeName=="f"||d.nodeName=="e"){this.add_classes_cursors(d)}}}};o.prototype.remove_cursors_classes=function(e){if(e.nodeName=="e"){e.removeAttribute("path");e.removeAttribute("render");e.removeAttribute("current");e.removeAttribute("temp")}else{for(var t=e.firstChild;t!=null;t=t.nextSibling){if(t.nodeType==1){this.remove_cursors_classes(t)}}}};o.prototype.down_from_f=function(){var e=this.current.firstChild;while(e!=null&&e.nodeName!="c"&&e.nodeName!="l")e=e.nextSibling;if(e!=null){while(e.nodeName=="l")e=e.firstChild;this.current=e.firstChild}};o.prototype.down_from_f_to_blank=function(){var e=this.current.firstChild;while(e!=null&&!(e.nodeName=="c"&&e.children.length==1&&e.firstChild.firstChild.nodeValue=="")){e=e.nextSibling}if(e!=null){while(e.nodeName=="l")e=e.firstChild;if(e.nodeName!="c"||e.firstChild.nodeName!="e"){this.problem("dfftb");return}this.current=e.firstChild}else this.down_from_f()};o.prototype.delete_from_f=function(e){var t=this.current;var r=t.parentNode;var n=t.previousSibling;var i=t.nextSibling;var a=e||"";var s=this.make_e(n.firstChild.textContent+a+i.firstChild.textContent);this.current=s;this.caret=n.firstChild.textContent.length;r.insertBefore(s,n);r.removeChild(n);r.removeChild(t);r.removeChild(i)};o.prototype.symbol_to_node=function(e,t){return a.symbol_to_node(this.symbols[e],t,this.doc.base)};o.prototype.insert_symbol=function(e){var t=this.symbols[e];if(t.attrs&&this.is_blacklisted(t.attrs.type)){return false}var r={};var n,i;var a="input"in t?t.input:0;var s=[];var l=null;var u=false;var f;if(a>0){a--;if(this.sel_status!=o.SEL_NONE){f=this.sel_get();s=f.involved;n=this.make_e(f.remnant.firstChild.nodeValue.slice(0,this.sel_start.caret));i=this.make_e(f.remnant.firstChild.nodeValue.slice(this.sel_start.caret));r[a]=f.node_list}else if("input"in t){if(this.caret==0&&this.current.previousSibling!=null){r[a]=[this.make_e(""),this.current.previousSibling,this.make_e("")];l=this.current.previousSibling;u=true}else{var c=this.current.firstChild.nodeValue.substring(0,this.caret);var d=c.match(/[0-9.]+$|[a-zA-Z]$/);if(d!=null&&d.length>0){d=d[0];n=this.make_e(this.current.firstChild.nodeValue.slice(0,this.caret-d.length));i=this.make_e(this.current.firstChild.nodeValue.slice(this.caret));r[a]=[this.make_e(d)]}}}}if(!u&&(n==null||i==null)){if(this.sel_status!=o.SEL_NONE){f=this.sel_get();s=f.involved;n=this.make_e(f.remnant.firstChild.nodeValue.slice(0,this.sel_start.caret));i=this.make_e(f.remnant.firstChild.nodeValue.slice(this.sel_start.caret));r=[f.node_list]}else{n=this.make_e(this.current.firstChild.nodeValue.slice(0,this.caret));i=this.make_e(this.current.firstChild.nodeValue.slice(this.caret));s=[this.current]}}var h=this.symbol_to_node(e,r);var p=this.current.parentNode;var v=h.f;var m=this.current.nextSibling;if(u){p.replaceChild(v,l)}else{if(s.length==0)this.current.parentNode.removeChild(this.current);for(var g=0;g<s.length;g++){if(m==s[g])m=m.nextSibling;p.removeChild(s[g])}p.insertBefore(n,m);p.insertBefore(v,m);p.insertBefore(i,m)}this.caret=0;this.current=v;if(h.args.length==0||"input"in t&&t.input>=h.args.length){this.current=this.current.nextSibling}else{this.down_from_f_to_blank();this.caret=this.current.firstChild.textContent.length}this.sel_clear();this.checkpoint();return true};o.prototype.sel_get=function(){if(this.sel_status==o.SEL_NONE){return null}var e=[];var t=[];var r=null;if(this.sel_start.node==this.sel_end.node){return{node_list:[this.make_e(this.sel_start.node.firstChild.nodeValue.substring(this.sel_start.caret,this.sel_end.caret))],remnant:this.make_e(this.sel_start.node.firstChild.nodeValue.substring(0,this.sel_start.caret)+this.sel_end.node.firstChild.nodeValue.substring(this.sel_end.caret)),involved:[this.sel_start.node]}}t.push(this.make_e(this.sel_start.node.firstChild.nodeValue.substring(this.sel_start.caret)));e.push(this.sel_start.node);e.push(this.sel_end.node);r=this.make_e(this.sel_start.node.firstChild.nodeValue.substring(0,this.sel_start.caret)+this.sel_end.node.firstChild.nodeValue.substring(this.sel_end.caret));var n=this.sel_start.node.nextSibling;while(n!=null&&n!=this.sel_end.node){e.push(n);t.push(n);n=n.nextSibling}t.push(this.make_e(this.sel_end.node.firstChild.nodeValue.substring(0,this.sel_end.caret)));return{node_list:t,remnant:r,involved:e,cursor:0}};o.prototype.make_e=function(e){var t=this.doc.base;var r=t.createElement("e");r.appendChild(t.createTextNode(e));return r};o.prototype.insert_string=function(e){var t=this;if(this.sel_status!=o.SEL_NONE){this.sel_delete();this.sel_clear()}this.current.firstChild.nodeValue=this.current.firstChild.nodeValue.splice(this.caret,e);this.caret+=e.length;this.checkpoint();if(this.setting("autoreplace")=="auto")this.check_for_symbol(false);if(this.setting("autoreplace")=="whole")this.check_for_symbol(true);if(this.setting("autoreplace")=="delay"&&setTimeout){if(this.delayed_check)clearTimeout(this.delayed_check);this.delayed_check=setTimeout(function(){t.check_for_symbol(false)},200)}};o.prototype.insert_doc=function(e){this.insert_nodes(e.root().childNodes,true)};o.prototype.sel_copy=function(){var e=this.sel_get();if(!e)return;o.clipboard=[];var t=this.setting("cliptype");if(t!="none")var r=new i("<m></m>");for(var n=0;n<e.node_list.length;n++){var a=e.node_list[n].cloneNode(true);o.clipboard.push(a);if(t!="none")r.root().appendChild(a.cloneNode(true))}if(t!="none"){try{this.system_copy(r.get_content(t))}catch(e){this.system_copy("Syntax error")}}this.sel_clear()};o.prototype.system_copy=function(e){if(window.clipboardData&&window.clipboardData.setData)return window.clipboardData.setData("Text",e);else if(document.queryCommandSupported&&document.queryCommandSupported("copy")){var t=document.createElement("textarea");t.textContent=e;t.style.position="fixed";t.style.background="transparent";document.body.appendChild(t);t.select();try{return document.execCommand("copy")}catch(e){return false}finally{document.body.removeChild(t)}}};o.prototype.sel_cut=function(){var e=this.sel_delete();if(!e)return;o.clipboard=[];var t=this.setting("cliptype");var r="";for(var n=0;n<e.length;n++){var i=e[n].cloneNode(true);o.clipboard.push(i);if(t!="none")r+=this.doc.manual_render(t,i)}if(t!="none")this.system_copy(r);this.sel_clear();this.checkpoint()};o.prototype.insert_nodes=function(e,t){var r=[];for(var n=0;n<e.length;n++){r.push(e[n].cloneNode(true))}if(r.length==1){this.current.firstChild.nodeValue=this.current.firstChild.nodeValue.substring(0,this.caret)+r[0].firstChild.nodeValue+this.current.firstChild.nodeValue.substring(this.caret);if(t)this.caret+=r[0].firstChild.nodeValue.length}else{var i=this.make_e(r[r.length-1].firstChild.nodeValue+this.current.firstChild.nodeValue.substring(this.caret));this.current.firstChild.nodeValue=this.current.firstChild.nodeValue.substring(0,this.caret)+r[0].firstChild.nodeValue;if(this.current.nextSibling==null)this.current.parentNode.appendChild(i);else this.current.parentNode.insertBefore(i,this.current.nextSibling);for(var a=1;a<r.length-1;a++)this.current.parentNode.insertBefore(r[a],i);if(t){this.current=i;this.caret=r[r.length-1].firstChild.nodeValue.length}}};o.prototype.sel_paste=function(){this.sel_delete();this.sel_clear();if(!o.clipboard||o.clipboard.length==0)return;this.insert_nodes(o.clipboard,true);this.checkpoint();return};o.prototype.sel_clear=function(){this.sel_start=null;this.sel_end=null;this.sel_status=o.SEL_NONE};o.prototype.sel_delete=function(){var e=this.sel_get();if(!e)return null;var t=e.involved[0].parentNode;var r=e.involved[0].previousSibling;for(var n=0;n<e.involved.length;n++){var i=e.involved[n];t.removeChild(i)}if(r==null){if(t.firstChild==null)t.appendChild(e.remnant);else t.insertBefore(e.remnant,t.firstChild)}else if(r.nodeName=="f"){if(r.nextSibling==null)t.appendChild(e.remnant);else t.insertBefore(e.remnant,r.nextSibling)}this.current=e.remnant;this.caret=this.sel_start.caret;return e.node_list};o.prototype.sel_all=function(){this.home();this.set_sel_start();this.end();this.set_sel_end();if(this.sel_start.node!=this.sel_end.node||this.sel_start.caret!=this.sel_end.caret)this.sel_status=o.SEL_CURSOR_AT_END};o.prototype.sel_right=function(){if(this.sel_status==o.SEL_NONE){this.set_sel_start();this.sel_status=o.SEL_CURSOR_AT_END}if(this.caret>=n.get_length(this.current)){var e=this.current.nextSibling;if(e!=null){this.current=e.nextSibling;this.caret=0;this.set_sel_boundary(o.SEL_CURSOR_AT_END)}else{this.set_sel_boundary(o.SEL_CURSOR_AT_END)}}else{this.caret+=1;this.set_sel_boundary(o.SEL_CURSOR_AT_END)}if(this.sel_start.node==this.sel_end.node&&this.sel_start.caret==this.sel_end.caret){this.sel_status=o.SEL_NONE}};o.prototype.set_sel_boundary=function(e,t){if(this.sel_status==o.SEL_NONE||t)this.sel_status=e;if(this.sel_status==o.SEL_CURSOR_AT_START)this.set_sel_start();else if(this.sel_status==o.SEL_CURSOR_AT_END)this.set_sel_end()};o.prototype.sel_left=function(){if(this.sel_status==o.SEL_NONE){this.set_sel_end();this.sel_status=o.SEL_CURSOR_AT_START}if(this.caret<=0){var e=this.current.previousSibling;if(e!=null){this.current=e.previousSibling;this.caret=this.current.firstChild.nodeValue.length;this.set_sel_boundary(o.SEL_CURSOR_AT_START)}else{this.set_sel_boundary(o.SEL_CURSOR_AT_START)}}else{this.caret-=1;this.set_sel_boundary(o.SEL_CURSOR_AT_START)}if(this.sel_start.node==this.sel_end.node&&this.sel_start.caret==this.sel_end.caret){this.sel_status=o.SEL_NONE}};o.prototype.list_extend_copy_right=function(){this.list_extend("right",true)};o.prototype.list_extend_copy_left=function(){this.list_extend("left",true)};o.prototype.list_extend_right=function(){this.list_extend("right",false)};o.prototype.list_extend_left=function(){this.list_extend("left",false)};o.prototype.list_extend_up=function(){this.list_extend("up",false)};o.prototype.list_extend_down=function(){this.list_extend("down",false)};o.prototype.list_extend_copy_up=function(){this.list_extend("up",true)};o.prototype.list_extend_copy_down=function(){this.list_extend("down",true)};o.prototype.list_vertical_move=function(e){var t=this.current;while(t.parentNode&&t.parentNode.parentNode&&!(t.nodeName=="c"&&t.parentNode.nodeName=="l"&&t.parentNode.parentNode.nodeName=="l")){t=t.parentNode}if(!t.parentNode)return;var r=1;var n=t;while(n.previousSibling!=null){r++;n=n.previousSibling}var i=e?t.parentNode.nextSibling:t.parentNode.previousSibling;if(!i)return;var a=1;var s=i.firstChild;while(a<r){a++;s=s.nextSibling}this.current=s.firstChild;this.caret=e?0:this.current.firstChild.textContent.length};o.prototype.list_extend=function(e,t){var r=this.doc.base;var n=e=="up"||e=="down";var i=e=="up"||e=="left";var a=n?"l":"c";var s=this.current;while(s.parentNode&&!(s.nodeName==a&&s.parentNode.nodeName=="l")){s=s.parentNode}if(!s.parentNode)return;var o;if(!n&&s.parentNode.parentNode.nodeName=="l"){o=r.createElement("c");o.appendChild(this.make_e(""));var l=1;var u=s;while(u.previousSibling!=null){l++;u=u.previousSibling}var f=[];var c=this.doc.xpath_list("./l/c[position()="+l+"]",s.parentNode.parentNode);var d=null;try{for(d=c.iterateNext();d!=null;d=c.iterateNext()){f.push(d)}}catch(e){this.fire_event("error",{message:"XML modified during iteration? "+e})}for(var h=0;h<f.length;h++){d=f[h];if(t)d.parentNode.insertBefore(d.cloneNode(true),i?d:d.nextSibling);else d.parentNode.insertBefore(o.cloneNode(true),i?d:d.nextSibling);d.parentNode.setAttribute("s",parseInt(d.parentNode.getAttribute("s"))+1)}this.sel_clear();this.current=i?s.previousSibling.lastChild:s.nextSibling.firstChild;this.caret=this.current.firstChild.textContent.length;this.checkpoint();return}if(t){o=s.cloneNode(true)}else{if(n){o=r.createElement("l");o.setAttribute("s",s.getAttribute("s"));for(var p=0;p<parseInt(s.getAttribute("s"));p++){var v=r.createElement("c");v.appendChild(this.make_e(""));o.appendChild(v)}}else{o=r.createElement("c");o.appendChild(this.make_e(""))}}s.parentNode.setAttribute("s",parseInt(s.parentNode.getAttribute("s"))+1);s.parentNode.insertBefore(o,i?s:s.nextSibling);this.sel_clear();if(n)this.current=o.firstChild.firstChild;else this.current=o.firstChild;this.caret=0;this.checkpoint()};o.prototype.list_remove_col=function(){var e=this.current;while(e.parentNode&&e.parentNode.parentNode&&!(e.nodeName=="c"&&e.parentNode.nodeName=="l"&&e.parentNode.parentNode.nodeName=="l")){e=e.parentNode}if(!e.parentNode)return;if(e.previousSibling!=null){this.current=e.previousSibling.lastChild;this.caret=e.previousSibling.lastChild.firstChild.textContent.length}else if(e.nextSibling!=null){this.current=e.nextSibling.firstChild;this.caret=0}else return;var t=1;var r=e;while(r.previousSibling!=null){t++;r=r.previousSibling}var n=[];var i=this.doc.xpath_list("./l/c[position()="+t+"]",e.parentNode.parentNode);var a=null;try{for(a=i.iterateNext();a!=null;a=i.iterateNext()){n.push(a)}}catch(e){this.fire_event("error",{message:"XML modified during iteration? "+e})}for(var s=0;s<n.length;s++){a=n[s];a.parentNode.setAttribute("s",parseInt(a.parentNode.getAttribute("s"))-1);a.parentNode.removeChild(a)}this.checkpoint()};o.prototype.list_remove_row=function(){var e=this.current;while(e.parentNode&&!(e.nodeName=="l"&&e.parentNode.nodeName=="l")){e=e.parentNode}if(!e.parentNode)return;if(e.previousSibling!=null){this.current=e.previousSibling.firstChild.lastChild;this.caret=e.previousSibling.lastChild.firstChild.textContent.length}else if(e.nextSibling!=null){this.current=e.nextSibling.firstChild.firstChild;this.caret=0}else return;e.parentNode.setAttribute("s",parseInt(e.parentNode.getAttribute("s"))-1);e.parentNode.removeChild(e);this.checkpoint()};o.prototype.list_remove=function(){var e=this.current;while(e.parentNode&&!(e.nodeName=="c"&&e.parentNode.nodeName=="l")){e=e.parentNode}if(!e.parentNode)return;if(e.parentNode.parentNode&&e.parentNode.parentNode.nodeName=="l"){this.list_remove_col();return}if(e.previousSibling!=null){this.current=e.previousSibling.lastChild;this.caret=e.previousSibling.lastChild.firstChild.textContent.length}else if(e.nextSibling!=null){this.current=e.nextSibling.firstChild;this.caret=0}else return;e.parentNode.setAttribute("s",parseInt(e.parentNode.getAttribute("s"))-1);e.parentNode.removeChild(e);this.checkpoint()};o.prototype.right=function(){this.sel_clear();if(this.caret>=n.get_length(this.current)){var e=this.doc.xpath_node("following::e[1]",this.current);if(e!=null){this.current=e;this.caret=0}else{this.fire_event("right_end")}}else{this.caret+=1}};o.prototype.spacebar=function(){if(n.is_text(this.current))this.insert_string(" ");else this.space_caret=this.caret};o.prototype.left=function(){this.sel_clear();if(this.caret<=0){var e=this.doc.xpath_node("preceding::e[1]",this.current);if(e!=null){this.current=e;this.caret=this.current.firstChild.nodeValue.length}else{this.fire_event("left_end")}}else{this.caret-=1}};o.prototype.delete_from_c=function(){var e=0;var t=this.current.parentNode;while(t&&t.nodeName=="c"){e++;t=t.previousSibling}var r=this.current.parentNode.getAttribute("delete");var n=this.doc.xpath_node("./c[position()="+r+"]",this.current.parentNode.parentNode);var i=[];for(var a=n.firstChild;a!=null;a=a.nextSibling){i.push(a)}this.current=this.current.parentNode.parentNode;this.delete_from_f();this.insert_nodes(i,e>r)};o.prototype.delete_from_e=function(){if(this.caret>0){this.current.firstChild.nodeValue=this.current.firstChild.nodeValue.splicen(this.caret-1,"",1);this.caret--}else{if(this.current.previousSibling!=null&&n.is_char(this.current.previousSibling)){this.current=this.current.previousSibling;this.delete_from_f()}else if(this.current.previousSibling!=null&&this.current.previousSibling.nodeName=="f"){this.left();return false}else if(this.current.parentNode.previousSibling!=null&&this.current.parentNode.previousSibling.nodeName=="c"){if(this.current.parentNode.hasAttribute("delete")){this.delete_from_c()}else{this.left();return false}}else if(this.current.previousSibling==null&&this.current.parentNode.nodeName=="c"&&(this.current.parentNode.previousSibling==null||this.current.parentNode.previousSibling.nodeName!="c")){var e=this.current.parentNode;while(e.parentNode.nodeName=="l"||e.parentNode.nodeName=="c"){e=e.parentNode}if(e.hasAttribute("delete")){this.delete_from_c()}else{this.current=e.parentNode;this.delete_from_f()}}else{return false}}return true};o.prototype.delete_forward_from_e=function(){if(this.caret<this.current.firstChild.nodeValue.length){this.current.firstChild.nodeValue=this.current.firstChild.nodeValue.splicen(this.caret,"",1)}else{if(this.current.nextSibling!=null){this.current=this.current.nextSibling;this.delete_from_f()}else if(this.current.parentNode.nodeName=="c"){return false}}return true};o.prototype.backspace=function(){if(this.sel_status!=o.SEL_NONE){this.sel_delete();this.sel_status=o.SEL_NONE;this.checkpoint()}else if(this.delete_from_e()){this.checkpoint()}};o.prototype.delete_key=function(){if(this.sel_status!=o.SEL_NONE){this.sel_delete();this.sel_status=o.SEL_NONE;this.checkpoint()}else if(this.delete_forward_from_e()){this.checkpoint()}};o.prototype.backslash=function(){if(n.is_text(this.current))return;this.insert_symbol("sym_name")};o.prototype.tab=function(){if(!n.is_symbol(this.current)){this.check_for_symbol();return}var e=this.current.firstChild.textContent;var t=[];for(var r in this.symbols){if(r.startsWith(e))t.push(r)}if(t.length==1){this.current.firstChild.textContent=t[0];this.caret=t[0].length}else{this.fire_event("completion",{candidates:t})}};o.prototype.right_paren=function(){if(this.current.nodeName=="e"&&this.caret<this.current.firstChild.nodeValue.length-1)return;else this.right()};o.prototype.up=function(){this.sel_clear();if(this.current.parentNode.hasAttribute("up")){var e=parseInt(this.current.parentNode.getAttribute("up"));var t=this.current.parentNode.parentNode;var r=t.firstChild;while(r!=null&&e>0){if(r.nodeName=="c")e--;if(e>0)r=r.nextSibling}this.current=r.lastChild;this.caret=this.current.firstChild.nodeValue.length}else this.list_vertical_move(false)};o.prototype.down=function(){this.sel_clear();if(this.current.parentNode.hasAttribute("down")){var e=parseInt(this.current.parentNode.getAttribute("down"));var t=this.current.parentNode.parentNode;var r=t.firstChild;while(r!=null&&e>0){if(r.nodeName=="c")e--;if(e>0)r=r.nextSibling}this.current=r.lastChild;this.caret=this.current.firstChild.nodeValue.length}else this.list_vertical_move(true)};o.prototype.home=function(){this.current=this.doc.root().firstChild;this.caret=0};o.prototype.end=function(){this.current=this.doc.root().lastChild;this.caret=this.current.firstChild.nodeValue.length};o.prototype.checkpoint=function(){var e=this.doc.base;this.current.setAttribute("current","yes");this.current.setAttribute("caret",this.caret.toString());this.undo_now++;this.undo_data[this.undo_now]=e.cloneNode(true);this.undo_data.splice(this.undo_now+1,this.undo_data.length);var t=this.undo_data[this.undo_now-1]?(new XMLSerializer).serializeToString(this.undo_data[this.undo_now-1]):"[none]";var r=(new XMLSerializer).serializeToString(this.undo_data[this.undo_now]);this.fire_event("change",{old:t,new:r});this.current.removeAttribute("current");this.current.removeAttribute("caret");if(this.parent&&this.parent.ready)this.parent.render(true)};o.prototype.restore=function(e){this.doc.base=this.undo_data[e].cloneNode(true);this.find_current();this.current.removeAttribute("current");this.current.removeAttribute("caret")};o.prototype.find_current=function(){this.current=this.doc.xpath_node("//*[@current='yes']");this.caret=parseInt(this.current.getAttribute("caret"))};o.prototype.undo=function(){this.sel_clear();if(this.undo_now<=0)return;this.undo_now--;this.restore(this.undo_now);var e=this.undo_data[this.undo_now+1]?(new XMLSerializer).serializeToString(this.undo_data[this.undo_now+1]):"[none]";var t=(new XMLSerializer).serializeToString(this.undo_data[this.undo_now]);this.fire_event("change",{old:e,new:t})};o.prototype.redo=function(){this.sel_clear();if(this.undo_now>=this.undo_data.length-1)return;this.undo_now++;this.restore(this.undo_now);var e=this.undo_data[this.undo_now-1]?(new XMLSerializer).serializeToString(this.undo_data[this.undo_now-1]):"[none]";var t=(new XMLSerializer).serializeToString(this.undo_data[this.undo_now]);this.fire_event("change",{old:e,new:t})};o.prototype.done=function(){if(n.is_symbol(this.current))this.complete_symbol();else this.fire_event("done")};o.prototype.complete_symbol=function(){var e=this.current.firstChild.textContent;if(!this.symbols[e])return;this.current=this.current.parentNode.parentNode;this.delete_from_f();this.insert_symbol(e)};o.prototype.problem=function(e){this.fire_event("error",{message:e})};o.prototype.is_blacklisted=function(e){var t=this.setting("blacklist");for(var r=0;r<t.length;r++)if(e==t[r])return true;return false};o.prototype.check_for_symbol=function(e){var t=this;if(n.is_text(this.current))return;var r="";var i=null;if(e){i=t.current.firstChild.nodeValue.substring(t.space_caret,t.caret);var a=/[a-zA-Z_]+$/.exec(i);if(a){var s=a[0];if(this.symbols[s])r=s}}else{i=t.current.firstChild.nodeValue.substring(t.space_caret,t.caret);while(i.length>0){if(i in this.symbols){r=i;break}i=i.substring(1)}}if(r=="")return;var o=t.current.firstChild.nodeValue;var l=t.caret;t.current.firstChild.nodeValue=t.current.firstChild.nodeValue.slice(0,t.caret-r.length)+t.current.firstChild.nodeValue.slice(t.caret);t.caret-=r.length;var u=t.insert_symbol(r);if(!u){t.current.firstChild.nodeValue=o;t.caret=l}};t.exports=o},{"./doc.js":4,"./settings.js":8,"./symbols.js":9,"./utils.js":10}],6:[function(e,t,r){var n=e("../lib/mousetrap/mousetrap.min.js");var i=e("../lib/katex/katex-modified.min.js");var a=e("./engine.js");var s=e("./utils.js");var o=e("./symbols.js");var l=e("./settings.js");var u=e("./doc.js");var f=function(e,t){if(f.instances[e]){if(f.instances[e].ready){return f.instances[e]}return null}var r=this;t=t||{};var n=t["settings"]||{};this.id=e;var i=document.getElementById(e);var s=f.max_tabIndex||0;i.tabIndex=s;f.max_tabIndex=s+1;var o=n["buttons"]||l.config.settings["buttons"];this.buttons_div=document.createElement("div");this.buttons_div.setAttribute("class","guppy_buttons");if(o){for(var u=0;u<o.length;u++){if(o[u]=="osk"&&l.osk){f.make_button("icons/keyboard.png",this.buttons_div,function(){if(l.osk.guppy==r){l.osk.detach(r)}else{l.osk.attach(r)}})}else if(o[u]=="settings")f.make_button("icons/settings.png",this.buttons_div,function(){l.toggle("settings",r)});else if(o[u]=="symbols")f.make_button("icons/symbols.png",this.buttons_div,function(){l.toggle("symbols",r)});else if(o[u]=="controls")f.make_button("icons/help.png",this.buttons_div,function(){l.toggle("controls",r)})}}this.editor_active=true;this.editor=i;this.blacklist=[];this.autoreplace=true;this.ready=false;f.instances[i.id]=this;t["parent"]=r;this.engine=new a(t);this.temp_cursor={node:null,caret:0};this.editor.addEventListener("keydown",f.key_down,false);this.editor.addEventListener("keyup",f.key_up,false);this.editor.addEventListener("focus",function(){f.kb.alt_down=false;if(r.activate)r.activate()},false);if(f.ready&&!this.ready){this.ready=true;this.engine.fire_event("ready");this.render(true)}this.deactivate();this.recompute_locations_paths()};f.instances={};f.ready=false;f.Doc=u;f.active_guppy=null;f.Symbols=o;f.make_button=function(e,t,r){var n=document.createElement("img");n.setAttribute("class","guppy-button");n.setAttribute("src",l.config.path+"/"+e);t.appendChild(n);if(r){n.addEventListener("mouseup",function(e){r(e);if(e.cancelBubble!=null)e.cancelBubble=true;if(e.stopPropagation)e.stopPropagation();e.preventDefault();return false},false)}return n};f.add_global_symbol=function(e,t,r){if(r){t=o.make_template_symbol(r,e,t)}o.symbols[e]=JSON.parse(JSON.stringify(t));for(var n in f.instances){f.instances[n].engine.symbols[e]=JSON.parse(JSON.stringify(t))}};f.remove_global_symbol=function(e){if(o.symbols[e]){delete o.symbols[e];for(var t in f.instances){if(f.instances[t].engine.symbols[e]){delete f.instances[t].engine.symbols[e]}}}};f.init=function(e){var t=function(){l.init(o.symbols);f.register_keyboard_handlers();for(var t in f.instances){f.instances[t].ready=true;f.instances[t].render(true);f.instances[t].engine.symbols=JSON.parse(JSON.stringify(o.symbols));for(var r in l.config.events){f.instances[t].engine.events[r]=l.config.events[r]}}a.ready=true;for(var n in f.instances){f.instances[n].engine.ready=true;f.instances[n].engine.fire_event("ready")}if(e.callback)e.callback()};if(e.settings){var r=JSON.parse(JSON.stringify(e.settings));for(var n in r){l.config.settings[n]=r[n]}}if(e.events){l.config.events=e.events}if(e.osk){f.OSK=e.osk;l.osk=e.osk;if(e.osk.config.attach=="focus"){var i=l.config.events["focus"];l.config.events["focus"]=function(t){if(i)i(t);if(t.focused)e.osk.attach(t.target);else e.osk.detach(t.target)}}}if(e.path){l.config.path=e.path}if(e.symbols){var s=e.symbols;if(!Array.isArray(s)){s=[s]}var u=[];for(var c=0;c<s.length;c++){var d=function e(t){return function(e){var r=new XMLHttpRequest;r.onload=function(){var t=JSON.parse(this.responseText);o.add_symbols(t);e()};r.open("get",s[t],true);r.send()}}(c);u.push(d)}u.push(t);var h=0;var p=function(){h+=1;if(h<u.length)u[h](p)};if(u.length>0)u[0](p)}else{t()}};f.prototype.is_changed=function(){var e=this.editor.getElementsByClassName("katex")[0];if(!e)return;var t=e.getBoundingClientRect();var r=null;if(this.bounding_box)r=this.bounding_box.top!=t.top||this.bounding_box.bottom!=t.bottom||this.bounding_box.right!=t.right||this.bounding_box.left!=t.left;else r=true;this.bounding_box=t;return r};f.prototype.recompute_locations_paths=function(){var e=[];var t=this.editor.getElementsByClassName("katex")[0];if(!t)return;var r=t.getBoundingClientRect();e.push({path:"all",top:r.top,bottom:r.bottom,left:r.left,right:r.right});var n=this.editor.getElementsByClassName("guppy_elt");for(var i=0;i<n.length;i++){var a=n[i];if(a.nodeName=="mstyle")continue;r=a.getBoundingClientRect();if(r.top==0&&r.bottom==0&&r.left==0&&r.right==0)continue;var s=a.classList;for(var o=0;o<s.length;o++){if(s[o].indexOf("guppy_loc")==0){e.push({path:s[o],top:r.top,bottom:r.bottom,left:r.left,right:r.right,mid_x:(r.left+r.right)/2,mid_y:(r.bottom+r.top)/2,blank:(" "+a.className+" ").indexOf(" guppy_blank ")>=0});break}}}this.boxes=e};f.get_loc=function(e,t,r,n){var i=f.active_guppy;var a=-1;var o=0;var l="";var u=null;var c=null;var d=null;var h=i.editor.getElementsByClassName("katex")[0];if(!h)return;if(r){var p=s.path_to(r);var v=parseInt(p.substring(p.lastIndexOf("e")+1))}var m=i.boxes;if(!m)return;if(r){p=p.replace(/e[0-9]+$/,"e");var g=[];for(var b=0;b<m.length;b++){if(m[b].path=="all")continue;var y=m[b].path.substring(0,m[b].path.lastIndexOf("_"));y=y.replace(/e[0-9]+$/,"e");if(y==p){g.push(m[b])}}m=g}if(!m)return;for(var _=0;_<m.length;_++){var x=m[_];if(x.path=="all"){if(!u)u={path:"guppy_loc_m_e1_0"};continue}var w=Math.max(x.left-e,e-x.right,0);var k=Math.max(x.top-t,t-x.bottom,0);var M=Math.sqrt(w*w+k*k);if(a==-1||M<a){a=M;o=e-x.mid_x;u=x}}y=u.path.substring("guppy_loc".length);y=y.replace(/_/g,"/");y=y.replace(/([0-9]+)(?=.*?\/)/g,"[$1]");c=i.engine.doc.xpath_node(y.substring(0,y.lastIndexOf("/")),i.engine.doc.root());d=parseInt(y.substring(y.lastIndexOf("/")+1));if(o>0&&!u.blank){d++}var S={current:c,caret:d,pos:l};if(r&&u){var C=parseInt(u.path.substring(u.path.lastIndexOf("e")+1,u.path.lastIndexOf("_")));if(C<v)l="left";else if(C>v)l="right";else if(d<n)l="left";else if(d>n)l="right";if(l)S["pos"]=l;else S["pos"]="none"}return S};f.mouse_up=function(){f.kb.is_mouse_down=false;var e=f.active_guppy;if(e)e.render(true)};f.mouse_down=function(e){if(e.target.getAttribute("class")=="guppy-button")return;var t=e.target;f.kb.is_mouse_down=true;while(t!=null){if(t.id in f.instances){e.preventDefault();var r=f.active_guppy;for(var n in f.instances){if(n!=t.id)f.instances[n].deactivate();f.active_guppy=f.instances[t.id];f.active_guppy.activate()}var i=f.active_guppy;var s=f.active_guppy.engine;i.space_caret=0;if(r==i){if(e.shiftKey){i.select_to(e.clientX,e.clientY,true)}else{var o=f.get_loc(e.clientX,e.clientY);if(!o)return;s.current=o.current;s.caret=o.caret;s.sel_status=a.SEL_NONE}i.render(true)}return}if(t.classList&&t.classList.contains("guppy_osk")){return}t=t.parentNode}f.active_guppy=null;for(var l in f.instances){f.instances[l].deactivate()}};f.mouse_move=function(e){var t=f.active_guppy;if(!t)return;if(!f.kb.is_mouse_down){var r=t.editor;var n=r.getBoundingClientRect();if(e.clientX<n.left||e.clientX>n.right||(e.clientY>n.bottom||e.clientY<n.top)){t.temp_cursor={node:null,caret:0}}else{var i=f.get_loc(e.clientX,e.clientY);if(!i)return;t.temp_cursor={node:i.current,caret:i.caret}}t.render(t.is_changed())}else{t.select_to(e.clientX,e.clientY,true);t.render(t.is_changed())}};f.prototype.select_to=function(e,t,r){var n=this.engine.caret;var i=this.engine.current;if(this.engine.sel_status==a.SEL_CURSOR_AT_START){i=this.engine.sel_end.node;n=this.engine.sel_end.caret}else if(this.engine.sel_status==a.SEL_CURSOR_AT_END){i=this.engine.sel_start.node;n=this.engine.sel_start.caret}var s=f.get_loc(e,t,i,n);if(!s)return;this.engine.select_to(s,i,n,r)};window.addEventListener("mousedown",f.mouse_down,true);window.addEventListener("mouseup",f.mouse_up,true);window.addEventListener("mousemove",f.mouse_move,false);f.prototype.render_node=function(e){var t="";if(e=="render"){var r=this.engine.doc.root();this.engine.add_paths(r,"m");this.engine.temp_cursor=this.temp_cursor;this.engine.add_classes_cursors(r);this.engine.current.setAttribute("current","yes");if(this.temp_cursor.node)this.temp_cursor.node.setAttribute("temp","yes");t=this.engine.get_content("latex",true);this.engine.remove_cursors_classes(r);t=t.replace(new RegExp("&amp;","g"),"&");return t}else{t=this.engine.get_content(e)}return t};f.prototype.render=function(e){if(!this.editor_active&&this.engine.doc.is_blank()){i.render(this.engine.setting("empty_content"),this.editor);this.editor.appendChild(this.buttons_div);return}var t=this.render_node("render");i.render(t,this.editor);this.editor.appendChild(this.buttons_div);if(e){this.recompute_locations_paths()}};f.prototype.latex=function(){return this.engine.get_content("latex")};f.prototype.xml=function(){return this.engine.get_content("xml")};f.prototype.syntax_tree=function(){return this.engine.get_content("ast")};f.prototype.equations=function(){return this.engine.get_content("eqns")};f.prototype.text=function(){return this.engine.get_content("text")};f.prototype.asciimath=function(){return this.engine.get_content("asciimath")};f.prototype.doc=function(){return this.engine.doc};f.prototype.func=function(e){var t=this.engine.get_content("function",e);var r=t["function"];r.vars=t.vars;return r};f.prototype.evaluate=function(e){return this.engine.doc.evaluate(e)};f.prototype.symbols_used=function(e){return this.engine.doc.get_symbols(e)};f.prototype.vars=function(){return this.engine.get_content("function").vars};f.prototype.import_text=function(e){return this.engine.import_text(e)};f.prototype.import_latex=function(e){return this.engine.import_latex(e)};f.prototype.import_xml=function(e){return this.engine.set_content(e)};f.prototype.import_syntax_tree=function(e){return this.engine.import_ast(e)};f.prototype.activate=function(){f.active_guppy=this;this.editor_active=true;this.editor.className=this.editor.className.replace(new RegExp("(\\s|^)guppy_inactive(\\s|$)")," guppy_active ");this.editor.focus();if(this.ready){this.render(true);this.engine.fire_event("focus",{focused:true})}};f.prototype.deactivate=function(){this.editor_active=false;var e=new RegExp("(?:\\s|^)guppy_active(?:\\s|$)");var t=new RegExp("(?:\\s|^)guppy_inactive(?:\\s|$)");if(this.editor.className.match(e)){this.editor.className=this.editor.className.replace(e," guppy_inactive ")}else if(!this.editor.className.match(t)){this.editor.className+=" guppy_inactive "}f.kb.shift_down=false;f.kb.ctrl_down=false;f.kb.alt_down=false;if(this.ready){this.render();this.engine.fire_event("focus",{focused:false})}};f.kb={};f.kb.is_mouse_down=false;f.kb.k_chars={"+":"+","-":"-","*":"*",".":"."};f.kb.k_text={"/":"/","*":"*","(":"(",")":")","<":"<",">":">","|":"|","!":"!",",":",",".":".",";":";","=":"=","[":"[","]":"]","@":"@","'":"'","`":"`",":":":",'"':'"',"?":"?",space:" "};f.kb.k_controls={up:"up",down:"down",right:"right",left:"left","alt+k":"up","alt+j":"down","alt+l":"right","alt+h":"left",space:"spacebar",home:"home",end:"end",backspace:"backspace",del:"delete_key","mod+a":"sel_all","mod+c":"sel_copy","mod+x":"sel_cut","mod+v":"sel_paste","mod+z":"undo","mod+y":"redo",enter:"done","mod+shift+right":"list_extend_copy_right","mod+shift+left":"list_extend_copy_left",",":"list_extend_right",";":"list_extend_down","mod+right":"list_extend_right","mod+left":"list_extend_left","mod+up":"list_extend_up","mod+down":"list_extend_down","mod+shift+up":"list_extend_copy_up","mod+shift+down":"list_extend_copy_down","mod+backspace":"list_remove","mod+shift+backspace":"list_remove_row","shift+left":"sel_left","shift+right":"sel_right",")":"right_paren","\\":"backslash",tab:"tab"};f.kb.k_syms={};var c=0;for(c=65;c<=90;c++){f.kb.k_chars[String.fromCharCode(c).toLowerCase()]=String.fromCharCode(c).toLowerCase();f.kb.k_chars["shift+"+String.fromCharCode(c).toLowerCase()]=String.fromCharCode(c).toUpperCase()}for(c=48;c<=57;c++)f.kb.k_chars[String.fromCharCode(c)]=String.fromCharCode(c);f.register_keyboard_handlers=function(){n.addKeycodes({173:"-"});var e,t;for(t in o.symbols){var r=o.symbols[t];if(r.keys)for(e=0;e<r.keys.length;e++)f.kb.k_syms[r.keys[e]]=r.attrs.type}for(e in f.kb.k_chars)n.bind(e,function(e){return function(){if(!f.active_guppy)return true;f.active_guppy.temp_cursor.node=null;if(s.is_text(f.active_guppy.engine.current)&&f.kb.k_text[e]){f.active_guppy.engine.insert_string(f.kb.k_text[e])}else{f.active_guppy.engine.insert_string(f.kb.k_chars[e])}f.active_guppy.render(true);return false}}(e));for(e in f.kb.k_syms)n.bind(e,function(e){return function(){if(!f.active_guppy)return true;f.active_guppy.temp_cursor.node=null;if(s.is_text(f.active_guppy.engine.current)){if(f.kb.k_text[e])f.active_guppy.engine.insert_string(f.kb.k_text[e])}else{f.active_guppy.engine.space_caret=0;f.active_guppy.engine.insert_symbol(o.lookup_type(f.kb.k_syms[e]))}f.active_guppy.render(true);return false}}(e));for(e in f.kb.k_controls)n.bind(e,function(e){return function(){if(!f.active_guppy)return true;if(s.is_text(f.active_guppy.engine.current)&&f.kb.k_text[e]){f.active_guppy.engine.insert_string(f.kb.k_text[e])}else{f.active_guppy.engine.space_caret=0;f.active_guppy.engine[f.kb.k_controls[e]]();f.active_guppy.temp_cursor.node=null}f.active_guppy.render(["up","down","right","left","home","end","sel_left","sel_right"].indexOf(e)<0);return false}}(e));for(e in f.kb.k_text)if(!(f.kb.k_chars[e]||f.kb.k_syms[e]||f.kb.k_controls[e])){n.bind(e,function(e){return function(){if(!f.active_guppy)return true;f.active_guppy.temp_cursor.node=null;if(s.is_text(f.active_guppy.engine.current)){f.active_guppy.engine.insert_string(f.kb.k_text[e]);f.active_guppy.render(true)}return false}}(e))}};t.exports=f},{"../lib/katex/katex-modified.min.js":1,"../lib/mousetrap/mousetrap.min.js":2,"./doc.js":4,"./engine.js":5,"./settings.js":8,"./symbols.js":9,"./utils.js":10}],7:[function(e,t,r){var n=function(e){var t=this;this.token_types=e;this.symbol_table={};this.original_symbol={nud:function(){throw Error("Undefined")},led:function(){throw Error("Missing operator")}};this.mul=function(e){return["*",[e,this.nud()]]};this.symbol=function(e,r){var n=t.symbol_table[e];r=r||0;if(n){if(r>=n.lbp){n.lbp=r}}else{n=Object.create(t.original_symbol);n.id=n.value=e;n.lbp=r;n.parent=t;t.symbol_table[e]=n}return n};this.advance=function(e){var r,n,i,a;if(e&&this.token.id!==e){throw Error("Expected '"+e+"'")}if(t.token_nr>=t.tokens.length){t.token=this.symbol_table["(end)"];return}i=t.tokens[t.token_nr];t.token_nr+=1;a=i.value;var s=null;r=i.type;if(r==="name"){n=this.symbol_table["(var)"]}else if(r==="operator"){n=this.symbol_table[a];if(!n){throw Error("Unknown operator")}}else if(r==="pass"){r="pass";n=this.symbol_table["(pass)"];s=i.args}else if(r==="number"){r="literal";n=this.symbol_table["(literal)"]}else if(r==="function"){r="function";n=this.symbol_table["(function)"];s=i.args}else{throw Error("Unexpected token",i)}t.token=Object.create(n);t.token.type=r;t.token.value=a;if(s)t.token.args=s;return t.token};this.expression=function(e){var r;var n=t.token;t.advance();r=n.nud();while(e<t.token.lbp){n=t.token;t.advance();r=n.led(r)}return r};this.infix=function(e,r,n){var i=this.symbol(e,r);i.led=n||function(e){return[this.value,[e,t.expression(r)]]};return i};this.prefix=function(e,r){var n=t.symbol(e);n.nud=r||function(){return[this.value,[t.expression(70)]]};return n};this.symbol("(end)");var r=null;r=this.symbol("(blank)",60);r.nud=function(){return["blank"]};r=this.symbol("(function)",60);r.led=this.mul;r.nud=function(){return[this.value,this.args||[]]};r=this.symbol("(literal)",60);r.led=this.mul;r.nud=function(){return["val",[this.value]]};r=this.symbol("(pass)",60);r.led=this.mul;r.nud=function(){return this.args[0]};r=this.symbol("(var)",60);r.led=this.mul;r.nud=function(){return["var",[this.value]]};this.token_nr=0;this.tokens=[];this.infix("=",40);this.infix("!=",40);this.infix("<",40);this.infix(">",40);this.infix("<=",40);this.infix(">=",40);this.infix("+",50);this.infix("-",50);this.infix("*",60);this.infix("/",60);this.infix("!",70,function(e){return["factorial",[e]]});this.infix("^",70,function(e){return["exponential",[e,t.expression(70)]]});this.infix("_",70,function(e){return["subscript",[e,t.expression(70)]]});this.infix("(",80,t.mul);this.symbol("(").nud=function(){var e=t.expression(0);t.advance(")");return e};this.symbol(")");this.symbol("{").nud=function(){var e=t.expression(0);t.advance("}");return e};this.symbol("}");this.symbol(",");this.prefix("-");this.tokenise_and_parse=function(e){return this.parse(this.tokenise(e))};this.parse=function(e){this.tokens=e;this.token_nr=0;if(this.tokens.length==0)return["blank"];this.advance();return this.expression(10)}};n.prototype.tokenise=function(e){var t=[];while(e.length>0){var r=false;for(var n=0;n<this.token_types.length;n++){var i=this.token_types[n];var a=RegExp(i.re);var s=a.exec(e);if(s){s=s[0];e=e.substring(s.length);r=true;if(i.type!="space")t.push({type:i.type,value:i.value(s)});break}}if(!r){return[]}}return t};var i=new n([{type:"number",re:"^[0-9.]+",value:function(e){if(isNaN(Number(e)))throw Error("Invalid number: "+e);return Number(e)}},{type:"operator",re:"^(<=|>=|!=|>|<|=)",value:function(e){return e}},{type:"operator",re:"^[-+*/!]",value:function(e){return e}},{type:"name",re:"^[a-zA-Z]",value:function(e){return e}},{type:"space",re:"^\\s+",value:function(e){return e}}]);var a=new n([{type:"number",re:"^[0-9.]+",value:function(e){if(isNaN(Number(e)))throw Error("Invalid number: "+e);return Number(e)}},{type:"operator",re:"^(!=|>=|<=)",value:function(e){return e}},{type:"operator",re:"^[-+*/,!()=<>_^]",value:function(e){return e}},{type:"name",re:"^[a-zA-Z_]*[a-zA-Z]",value:function(e){return e}},{type:"comma",re:"^,",value:function(e){return e}},{type:"space",re:"^\\s+",value:function(e){return e}}]);var s=a.symbol("(var)",60);s.led=a.mul;s.nud=function(){if(this.parent.token.id=="("){var e=[];a.advance();if(this.parent.token.id!==")"){while(true){e.push(a.expression(0));if(this.parent.token.id!==","){break}a.advance(",")}}a.advance(")");return[this.value,e]}else{return["var",[this.value]]}};var o=new n([{type:"number",re:"^[0-9.]+",value:function(e){if(isNaN(Number(e)))throw Error("Invalid number: "+e);return Number(e)}},{type:"operator",re:"^(!=|>=|<=)",value:function(e){return e}},{type:"operator",re:"^[-+*/,!()=<>_^}{]",value:function(e){return e}},{type:"name",re:"^[a-zA-Z_]*[a-zA-Z]",value:function(e){return e}},{type:"name",re:"^\\\\[a-zA-Z]*[a-zA-Z]",value:function(e){return e.substring(1)}},{type:"space",re:"^\\s+",value:function(e){return e}}]);s=o.symbol("(var)",60);s.led=o.mul;s.nud=function(){var e=[];while(this.parent.token.id=="{"){o.advance();if(this.parent.token.id!=="}"){e.push(o.expression(0));o.advance("}")}}if(e.length>0)return[this.value,e];else return["var",[this.value]]};t.exports={Parser:n,TextParser:a,LaTeXParser:o,EParser:i}},{}],8:[function(e,t,r){var n=e("../lib/katex/katex-modified.min.js");var i=e("./symbols.js");var a={};a.config={};a.config.path="/lib/guppy";a.config.events={};a.config.settings={autoreplace:"auto",empty_content:"\\blue{[?]}",blank_caret:"",blacklist:[],buttons:["osk","settings","symbols","controls"],cliptype:"latex"};a.settings_options={autoreplace:["auto","whole","delay","none"],cliptype:["latex","text","xml","ast","asciimath"]};a.panels={};a.panels.controls=document.createElement("div");a.panels.controls.setAttribute("class","guppy_help");a.panels.controls.style="padding:10px;border:1px solid black; background-color: #fff;position:absolute;top:0;left:0;display:none;";a.panels.controls.innerHTML='<p>Start typing the name of a mathematical function to automatically insert it.  </p><p>(For example, "sqrt" for root, "mat" for matrix, or "defi" for definite integral.)</p>\n<style>div.guppy_help td{ vertical-align:top;padding: 2px;}</style>\n<h3>Controls</h3><table id="guppy_help_table"><tr><td><b>Press...</b></td><td><b>...to do</b></td></tr></table>';a.panels.symbols=document.createElement("div");a.panels.symbols.setAttribute("class","guppy_help");a.panels.symbols.style="padding:10px;border:1px solid black; background-color: #fff;position:absolute;top:0;left:0;display:none;";a.panels.symbols.innerHTML='<p>Start typing the name of a mathematical function to automatically insert it.  </p><p>(For example, "sqrt" for root, "mat" for matrix, or "defi" for definite integral.)</p>\n<style>div.guppy_help td{ vertical-align:top;padding: 2px;}</style>\n<h3>Symbols</h3><table id="guppy_syms_table"><tr><td><b>Type...</b></td><td><b>...to get</b></td></tr></table>';a.panels.settings=document.createElement("div");a.panels.settings.setAttribute("class","guppy_help");a.panels.settings.style="padding:10px;border:1px solid black; background-color: #fff;position:absolute;top:0;left:0;display:none;";a.panels.settings.innerHTML='<p>Global settings: </p>\n<style>div.guppy_help td{ vertical-align:top;padding: 2px;}</style>\n<h3>Settings</h3><table id="guppy_settings_table"></table>';a.div_names=["controls","symbols","settings"];var s=function(e,t,r){var n=document.createElement("tr");n.innerHTML='<td><font face="monospace">'+t+"</font></td><td>"+r+"</td>";document.getElementById(e).appendChild(n);return n};var o=function(e){var t=document.createElement("div");t.setAttribute("class","guppy-card-x");t.innerHTML='<font size="6pt">&times;</font>';t.style="cursor:pointer;position:absolute;top:0;right:0;padding-right:5px;line-height:1;";t.onclick=function(){e.style.display="none"};e.appendChild(t)};a.hide_all=function(){for(var e=0;e<a.div_names.length;e++)a.panels[a.div_names[e]].style.display="none"};a.toggle=function(e,t){if(a.div_names.indexOf(e)>=0){a.init_card(e,t);if(a.panels[e].style.display=="none"){a.hide_all();var r=t.editor.getBoundingClientRect();a.panels[e].style.top=r.bottom+document.documentElement.scrollTop+"px";a.panels[e].style.left=r.left+document.documentElement.scrollLeft+"px";a.panels[e].style.display="block"}else{a.hide_all()}}};a.init_card=function(e,t){if(e=="settings"){document.getElementById("guppy_settings_table").innerHTML="";for(var r in a.settings_options){var n=a.settings_options[r];var i=t.engine.setting(r);var s=document.createElement("select");s.setAttribute("selected",i);s.setAttribute("id","guppy_settings_select_"+r);s.onchange=function(e){return function(){a.config.settings[e]=document.getElementById("guppy_settings_select_"+e).value}}(r);for(var o=0;o<n.length;o++){var l=document.createElement("option");l.setAttribute("value",n[o]);l.innerHTML=n[o];s.appendChild(l)}var u=document.createElement("tr");u.innerHTML='<td><font face="monospace">'+r+"</font></td>";var f=document.createElement("td");f.appendChild(s);u.appendChild(f);document.getElementById("guppy_settings_table").appendChild(u)}}};a.init=function(e){for(var t=0;t<a.div_names.length;t++){o(a.panels[a.div_names[t]]);document.body.appendChild(a.panels[a.div_names[t]])}s("guppy_help_table","left/right arrows","Move cursor");s("guppy_help_table","shift+left/right arrows","Select region");s("guppy_help_table","ctrl+a","Select all");s("guppy_help_table","ctrl+x/c/v","Cut/copy/paste");s("guppy_help_table","ctrl+z/y","Undo/redo");s("guppy_help_table","ctrl+left/right","Add entry to list or column to matrix");s("guppy_help_table","shift+ctrl+left/right","Add copy of current entry/column to to list/matrix");s("guppy_help_table","ctrl+up/down","Add row to matrix");s("guppy_help_table","shift+ctrl+up/down","Add copy of current row to matrix");s("guppy_help_table","ctrl+backspace","Delete current entry in list or column in matrix");s("guppy_help_table","ctrl+shift+backspace","Delete current row in matrix");for(var r in e){var l=i.add_blanks(e[r].output.latex,"\\blue{[?]}");var u=s("guppy_syms_table",r," ");n.render(l,u.lastChild)}};t.exports=a},{"../lib/katex/katex-modified.min.js":1,"./symbols.js":9}],9:[function(e,t,r){var n=e("./version.js");var i={symbols:{},templates:{}};i.make_template_symbol=function(e,t,r){var n=JSON.parse(JSON.stringify(i.templates[e]));return i.eval_template(n,t,r)};i.eval_template=function(e,t,r){r["name"]=t;if(Object.prototype.toString.call(e)=="[object String]"){var n=e;for(var a in r){n=n.replace(new RegExp("\\{\\$"+a+"\\}"),r[a])}return n}else{for(var s in e){e[s]=i.eval_template(e[s],t,r)}return e}};i.lookup_type=function(e){for(var t in i.symbols){if(i.symbols[t].attrs.type==e)return t}};i.add_symbols=function(e){var t=e["_version"];var r=e["_name"];delete e["_version"];delete e["_name"];if(!t||t!=n.SYMBOL_VERSION)n.SYMBOL_ERROR(r,t);var a=e["_templates"];if(a){for(var s in a){i.templates[s]=a[s]}delete e["_templates"]}for(var o in e){if(e[o].template){for(var l in e[o].values){var u=null;var f=null;if(Object.prototype.toString.call(e[o].values)=="[object Array]"){u=e[o].values[l];f={}}else{u=l;f=e[o].values[l]}i.symbols[u]=i.make_template_symbol(e[o].template,u,f)}}else{i.symbols[o]=e[o]}}};i.validate=function(){for(var e in i.symbols){if(!i.symbols[e].output.latex)throw"Symbol "+e+" missing output.latex (needed for display)";if(!i.symbols[e].attrs.name)throw"Symbol "+e+" missing attrs.name (needed for text output)";if(!i.symbols[e].attrs.group)throw"Symbol "+e+" missing attrs.group (needed for mobile)"}};i.split_output=function(e){var t=/\{\$([0-9]+)/g,r,n=[],i=[],a;var s=[];while(r=t.exec(e)){n.push(r.index);i.push(parseInt(r[1]))}s.push({type:"text",val:e.substring(0,n.length>0?n[0]:e.length)});for(a=0;a<n.length;a++){var o=n[a]+1;var l=[];var u="";var f=1;while(f>0&&o<e.length){if(e[o]=="}"){if(f==2){l.push(u);u=""}f--}if(f>=2){u+=e[o]}if(e[o]=="{"){f++}o++}s.push({type:"arg",index:i[a],separators:l});var c=a==n.length-1?e.length:n[a+1];s.push({type:"text",val:e.substring(o,c)})}return s};i.add_blanks=function(e,t){var r=i.split_output(e);var n="";for(var a=0;a<r.length;a++){if(r[a]["type"]=="text"){n+=r[a]["val"]}else n+=t}return n};i.symbol_to_node=function(e,t,r){var n=r.createElement("f");for(var a in e.attrs){n.setAttribute(a,e.attrs[a])}if("ast"in e){if("type"in e.ast)n.setAttribute("ast_type",e.ast["type"]);if("value"in e.ast)n.setAttribute("ast_value",e.ast["value"])}var s=-1,o=[];var l,u;for(var f in e["output"]){var c=r.createElement("b");c.setAttribute("p",f);var d=i.split_output(e["output"][f]);for(u=0;u<d.length;u++){if(d[u]["type"]=="text"){if(d[u]["val"].length>0)c.appendChild(r.createTextNode(d[u]["val"]))}else{if(f=="latex")o.push(d[u]);var h=r.createElement("r");h.setAttribute("ref",d[u]["index"]);if(d[u]["separators"].length>0)h.setAttribute("d",d[u]["separators"].length);for(var p=0;p<d[u]["separators"].length;p++)h.setAttribute("sep"+p,d[u]["separators"][p]);if(f=="latex"&&s==-1)s=d[u]["index"];c.appendChild(h)}}n.appendChild(c)}for(u=0;u<o.length;u++){var v=o[u];var m;if(u in t&&v["separators"].length>0){n.appendChild(t[u][0]);m=t[u][0];while(m.nodeName!="c")m=m.firstChild}else if(u in t){var g=t[u];m=r.createElement("c");for(var b=0;b<g.length;b++)m.appendChild(g[b].cloneNode(true));n.appendChild(m)}else{m=r.createElement("c");var y=r.createElement("e");y.appendChild(r.createTextNode(""));m.appendChild(y);var _=n;for(p=0;p<v["separators"].length;p++){var x=r.createElement("l");x.setAttribute("s","1");_.appendChild(x);_=x}_.appendChild(m)}if(u+1==s)l=m.lastChild;if(e["args"]&&e["args"][u]){for(var w in e["args"][u]){m.setAttribute(w,e["args"][u][w])}}}return{f:n,first:l,args:o}};t.exports=i},{"./version.js":11}],10:[function(e,t,r){var n={};n.CARET="\\cursor[-0.2ex]{0.7em}";n.TEMP_SMALL_CARET="\\cursor{0.7ex}";n.TEMP_CARET="\\cursor[-0.2ex]{0.7em}";n.SMALL_CARET="\\cursor{0.7ex}";n.SEL_CARET="\\cursor[-0.2ex]{0.7em}";n.SMALL_SEL_CARET="\\cursor{0.7ex}";n.SEL_COLOR="red";n.is_blank=function(e){return e.firstChild==null||e.firstChild.nodeValue==""};n.get_length=function(e){if(n.is_blank(e)||e.nodeName=="f")return 0;return e.firstChild.nodeValue.length};n.path_to=function(e){var t=e.nodeName;if(t=="m")return"guppy_loc_m";var r=0;for(var i=e;i!=null;i=i.previousSibling)if(i.nodeType==1&&i.nodeName==t)r++;return n.path_to(e.parentNode)+"_"+t+""+r};n.is_text=function(e){return e.parentNode.hasAttribute("mode")&&(e.parentNode.getAttribute("mode")=="text"||e.parentNode.getAttribute("mode")=="symbol")};n.is_char=function(e){for(var t=e.firstChild;t;t=t.nextSibling){if(t.nodeName=="c"||t.nodeName=="l")return false}return true};n.is_symbol=function(e){return e.parentNode.getAttribute("mode")&&e.parentNode.getAttribute("mode")=="symbol"};n.is_small=function(e){var t=e.parentNode;while(t!=null&&t.nodeName!="m"){if(t.getAttribute("small")=="yes"){return true}t=t.parentNode;while(t!=null&&t.nodeName!="c")t=t.parentNode}return false};t.exports=n},{}],11:[function(e,t,r){var n={};n.GUPPY_VERSION="2.0.0-alpha.1";n.DOC_VERSION="1.2.0";n.SYMBOL_VERSION="2.0.0-alpha.3";n.DOC_ERROR=function(e,t){throw Error("Document version mismatch for "+e+": Found "+t+", required "+n.DOC_VERSION+".  To update your document, please see daniel3735928559.github.io/guppy/doc/version.html")};n.SYMBOL_ERROR=function(e,t){throw Error("Symbol version mismatch for "+e+": Found "+t+", required "+n.SYMBOL_VERSION+".  To update your document, please see daniel3735928559.github.io/guppy/doc/version.html")};t.exports=n},{}]},{},[6])(6)});