Nicholas Smolney

$firstUl.appendTo($toc);
$toc.prependTo('section.article-info');

// start with first H1
insertHeading($headers[0]);
}

function insertHeading(heading) {
var $heading = $(heading);
// what level heading are we on?
var current_level = headingLevel(heading);

// if it's an H1, add it to the original list
if (current_level === 1) {
newLi($heading, $firstUl);
$currentUl = $firstUl;
$arrayUl = [];
$arrayUl.push($firstUl);
}

// if it's the same as the one before it, add it to the current list
else if (current_level === previous_level) {
newLi($heading, $currentUl);
}

// if it's one level higher than the one before it... time to make a new nested list
else if (current_level > previous_level) {
nestUl();
$arrayUl.push($currentUl);
newLi($heading, $currentUl);
}

else if (current_level for (i = 0; i < (previous_level-current_level); i++) {
$arrayUl.pop();
}
$currentUl = $arrayUl[$arrayUl.length-1];
newLi($heading, $currentUl);
}

previous_level = current_level;

var $nextHeading = $heading.nextAll("h1, h2, h3, h4, h5, h6").first()[0];
// if there's any headings left... run this again
if ($nextHeading) insertHeading($nextHeading);
}

// adds a new UL to the current UL
function nestUl() {
var $newUl = $('

');
$newUl.appendTo($currentUl);
$currentUl = $newUl;
}

// returns a numerical value for each heading
function headingLevel(heading) {
switch (heading.nodeName) {
case 'H1':
return 1;
break;
case 'H2':
return 2;
break;
case 'H3':
return 3;
break;
case 'H4':
return 4;
break;
case 'H5':
return 5;
break;
case 'H6':
return 6;
break;
default:
return 0;
}
}

// inserts a new line to the current list
function newLi(heading, $list) {
var $heading = $(heading);
var $wrapper = $('

');
//var $link = $('').prop('href', '#' + $heading.prop('id'));
var $anchorname = $heading[0].outerText.replace (/\s/g,'');
var $link = $('').prop('href', '#' + $anchorname);

$link.html(' ' + $heading.text());
$link.appendTo($wrapper);

$wrapper.appendTo($list);

var place_in_parent = $list.children('li').length;

if ($list.parent()[0].nodeName === 'DIV') {
$link.find('.index').text(place_in_parent)
} else {
$link.find('.index').text($wrapper.parent().prev('li').find('.index').text() + '.' + place_in_parent)
}

$heading.html("" + $link.find('.index').text() + ' ' + $heading.text());


}
});