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indexing.js
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42 lines (35 loc) · 1.03 KB
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/*
# Indexing
# A simple on-page TOC/index generator for h1 headings
#
# Copyright © SoftLayer, an IBM Company
# Code and documentation licensed under MIT
*/
(function($) {
$.fn.indexing = function (options) {
headings = $("h1").filter(function() {
return this.id;
});
output = $(this);
if (!headings.length || headings.length < 1 || !output.length) {
return;
}
get_level = function(ele) {
return parseInt(ele.nodeName.replace("H", ""), 10);
};
level = get_level(headings[0]);
this_level = void 0;
html = "";
headings.on("click", function() {
window.location.hash = this.id;
})
.each(function(_, heading) {
this_level = get_level(heading);
if (this_level === level) {
html += "<li><a href='#" + heading.id + "'>" + heading.innerHTML + "</a>";
}
level = this_level;
});
output.html(html);
};
})(jQuery);