全角/半角約物処理

yakumono.js

var MK = "｛［「『（｟〈《〔〘【〖";
var AK = "｝］」』）｠〉》〕〙】〗";
var KT = "、，。．";

var regexpMK = new RegExp("(.{1})([" + MK + "])", "g");
var regexpAK = new RegExp("([" + AK + "])(.{1})", "g");
var regexpKT = new RegExp("[" + KT + "]", "g");

document.addEventListener("DOMContentLoaded", function () {
    var body = document.getElementsByTagName("body")[0];
    Array.prototype.forEach.call(body.children, function (child) {
        if (child.tagName.toLowerCase() === "script") {
            return
        }
        child.innerHTML = child.innerHTML.replace(regexpMK, "<span style=\"letter-spacing: -0.5em;\">$1</span> $2");
        child.innerHTML = child.innerHTML.replace(regexpAK, "<span style=\"letter-spacing: -0.5em;\">$1</span> $2");
        child.innerHTML = child.innerHTML.replace(regexpKT, function (_1) {
            if (_1 === "。") return "｡ ";
            else if (_1 === "、") return "､ ";
        });
    });
});