将AcWing上的内容转换为markdown
Stan na
// ==UserScript==
// @name AcWing content to markdown
// @namespace acwing
// @match https://www.acwing.com/*
// @grant GM_setClipboard
// @version 1.4
// @author -
// @description 将AcWing上的内容转换为markdown
// @require https://cdn.bootcdn.net/ajax/libs/jquery/3.6.0/jquery.min.js
// @require https://cdn.bootcdn.net/ajax/libs/turndown/7.1.1/turndown.min.js
// @license MIT
// ==/UserScript==
let debug = false; // whether to enable on editor
let turndownService = new TurndownService();
turndownService.keep(['del']);
// code block
turndownService.addRule('pre', {
filter: 'pre',
replacement: function (content, node) {
let t = $(node).attr("class").split(/\s+/).slice(-1);
if (t == "hljs") t = "";
return "```" + t + "\n" + content.trim() + "\n```";
}
});
// remove <script> math
turndownService.addRule('remove-script', {
filter: function (node, options) {
return node.tagName.toLowerCase() == "script" && node.type.startsWith("math/tex");
},
replacement: function (content, node) {
return "";
}
});
// inline math
turndownService.addRule('inline-math', {
filter: function (node, options) {
return node.tagName.toLowerCase() == "span" && node.className == "MathJax";
},
replacement: function (content, node) {
return "$ " + $(node).next().text() + " $";
}
});
// block math
turndownService.addRule('block-math', {
filter: function (node, options) {
return node.tagName.toLowerCase() == "div" && node.className == "MathJax_Display";
},
replacement: function (content, node) {
return "\n$$\n" + $(node).next().text() + "\n$$\n";
}
});
// add buttons
$("div[data-tab='preview-tab-content']").each(function() {
if (debug || $(this).prev().attr('data-tab') != "editor-tab-content")
$(this).before(
"<div> <button class='html2md-view'>显示markdown</button> <button class='html2md-cb'>复制markdown到剪贴板</button> </div>"
);
});
$(".html2md-cb").click(function() {
let target = $(this).parent().next().get(0);
if (!target.markdown)
target.markdown = turndownService.turndown($(target).html());
GM_setClipboard(target.markdown);
// console.log(markdown);
$(this).text("已复制到剪贴板");
});
$(".html2md-view").click(function() {
let target = $(this).parent().next().get(0);
if (target.viewmd) {
target.viewmd = false;
$(this).text("显示markdown");
$(target).html(target.original_html);
} else {
target.viewmd = true;
if (!target.original_html)
target.original_html = $(target).html();
if (!target.markdown)
target.markdown = turndownService.turndown($(target).html());
$(this).text("显示原始内容");
$(target).html(`<textarea oninput="$(this).parent().get(0).markdown=this.value;" style="width:100%; height:400px;"> ${target.markdown} </textarea>`);
}
});