Show tag info while editing (SE)

tagsWhileEditing.user.js

// ==UserScript==
// @name         Show tag info while editing
// @version      0.1
// @description  While hovering over a tag while editing, show the tag's excerpt
// @author       Scimonster
// @match        http://*.stackexchange.com/*
// @match        http://*.stackoverflow.com/*
// @match        http://*.superuser.com/*
// @match        http://*.serverfault.com/*
// @match        http://*.askubuntu.com/*
// @match        http://*.mathoverflow.net/*
// @match        http://*.stackapps.com/*
// @grant        none
// ==/UserScript==

function t(t) {
    var e = $(t),
        n = e.attr("href");
    // if (!n || "/" != n.charAt(0)) return null;
    var i = e.text();
    return i.indexOf("*") > -1 ? null : (e.attr("title", ""), "/tags/" + encodeURIComponent(i) + "/subscriber-info")
}

function e(t, e) {
    var n = $(t),
        i = n.offset(),
        a = n.outerHeight(),
        o = {
            "left": i.left
        },
        r = i.top + a,
        s = i.left + e.outerWidth();
    e.height() + r > $(window).height() + $(window).scrollTop() ? o.bottom = $(window).height() - i.top - 8 : o.top = r;
    var c = Math.max(1024, $(window).width());
    return s > c && (o.left -= s - c), o
}
var to = setInterval(function(){
    if(!StackExchange.helpers.MagicPopup) return;
    clearInterval(to);
    StackExchange.helpers.MagicPopup({
        "selector": ".tag-editor .post-tag:not(.user-tag,.no-tag-menu)",
        "id": "tag-menu",
        "getUrl": t,
        "showing": e,
        "shown": function(t, e) {
            //n && n(e, $(t).text())
        }
    })
}, 500)