35 lines
942 B
JavaScript
35 lines
942 B
JavaScript
function init() {
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var input = document.getElementById("input");
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var math = document.getElementById("math");
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var permalink = document.getElementById("permalink");
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if ("oninput" in input) {
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input.addEventListener("input", reprocess, false);
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} else {
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input.attachEvent("onkeyup", reprocess);
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}
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if ("addEventListener" in permalink) {
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permalink.addEventListener("click", function() {
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window.location.search = "?text=" + encodeURIComponent(input.value);
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});
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} else {
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permalink.attachEvent("click", function() {
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window.location.search = "?text=" + encodeURIComponent(input.value);
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});
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}
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var match = (/(?:^\?|&)text=([^&]*)/).exec(window.location.search);
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if (match) {
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input.value = decodeURIComponent(match[1]);
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}
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reprocess();
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function reprocess() {
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katex.render(input.value, math);
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}
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}
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init();
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