Rewrites variable names in AtCoder problem statements.
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// ==UserScript==
// @name atcoder-refactor
// @namespace https://github.com/yoshrc
// @version 0.1
// @description Rewrites variable names in AtCoder problem statements.
// @author yoshrc
// @match https://atcoder.jp/contests/*/tasks/*
// @grant none
// ==/UserScript==
// TODO
// - Inline edit like IDE's multiselection instead of popup
// - Save variable name mapping in localStorage
(function() {
'use strict';
const ID_ATTR = 'data-atcoder-refactor-id';
const isAlpha = str => str.match(/^[A-Za-z]+$/);
const rewriteVariables = id => {
// TODO: Use current variable name instead of id
const newName = prompt('Variable Name', id);
document.querySelectorAll(`[${ID_ATTR}=${id}]`).forEach(varElem => {
varElem.textContent = newName;
})
}
// TODO: Use MathJax hook instead of wait 1000ms
setTimeout(() => {
document.querySelectorAll('.mjx-char').forEach(varElem => {
const varId = varElem.textContent;
if (!isAlpha(varId)) {
return;
}
varElem.setAttribute(ID_ATTR, varId);
varElem.onclick = () => rewriteVariables(varId);
});
}, 1000);
})();