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README
BSD-3-Clause

cherry logo

Cherry Markdown Editor

Cloud Studio Template

介绍

Cherry Markdown Editor 是一款 Javascript Markdown 编辑器,具有开箱即用、轻量简洁、易于扩展等特点. 它可以运行在浏览器或服务端(NodeJs).

开箱即用

开发者可以使用非常简单的方式调用并实例化 Cherry Markdown 编辑器,实例化的编辑器默认支持大部分常用的 markdown 语法(如标题、目录、流程图、公式等)。

易于拓展

当 Cherry Markdown 编辑器支持的语法不满足开发者需求时,可以快速的进行二次开发或功能扩展。同时,CherryMarkdown 编辑器应该由纯 JavaScript 实现,不应该依赖 angular、vue、react 等框架技术,框架只提供容器环境即可。

特性

语法特性

  1. 图片缩放、对齐、引用
  2. 根据表格内容生成图表
  3. 字体颜色、字体大小
  4. 字体背景颜色、上标、下标
  5. checklist
  6. 音视频

多种模式

  1. 双栏编辑预览模式(支持同步滚动)
  2. 纯预览模式
  3. 无工具栏模式(极简编辑模式)
  4. 移动端预览模式

功能特性

  1. 复制 Html 粘贴成 MD 语法
  2. 经典换行&常规换行
  3. 多光标编辑
  4. 图片尺寸
  5. 导出长图、pdf
  6. float toolbar 在新行行首支持快速工具栏
  7. bubble toolbar 选中文字时联想出快速工具栏

性能特性

  1. 局部渲染
  2. 局部更新

安全

Cherry Markdown 有内置的安全 Hook,通过过滤白名单以及 DomPurify 进行扫描过滤.

样式主题

Cherry Markdown 有多种样式主题选择

特性展示

这里可以看到特性的简短的演示 screenshot

在线体验

安装

通过 yarn

yarn add cherry-markdown

通过 npm

npm install cherry-markdown --save

如果需要开启 mermaid 画图、表格自动转图表功能,需要同时添加mermaidecharts包。

目前Cherry推荐的插件版本为echarts@4.6.0mermaid@9.4.3

# 安装mermaid依赖开启mermaid画图功能
yarn add mermaid@9.4.3
# 安装echarts依赖开启表格自动转图表功能
yarn add echarts@4.6.0

Quick start

Browser

UMD

<link href="cherry-editor.min.css" />
<div id="markdown-container"></div>
<script src="cherry-editor.min.js"></script>
<script>
  new Cherry({
    id: 'markdown-container',
    value: '# welcome to cherry editor!',
  });
</script>

ESM

import 'cherry-markdown/dist/cherry-markdown.css';
import Cherry from 'cherry-markdown';
const cherryInstance = new Cherry({
  id: 'markdown-container',
  value: '# welcome to cherry editor!',
});

Node

const { default: CherryEngine } = require('cherry-markdown/dist/cherry-markdown.engine.core.common');
const cherryEngineInstance = new CherryEngine();
const htmlContent = cherryEngineInstance.makeHtml('# welcome to cherry editor!');

使用轻量版本

因 mermaid 库尺寸非常大,Cherry 构建产物中包含了不内置 mermaid 的核心构建包,可按以下方式引入核心构建。

完整模式 (图形界面)

import 'cherry-markdown/dist/cherry-markdown.css';
import Cherry from 'cherry-markdown/dist/cherry-markdown.core';
const cherryInstance = new Cherry({
  id: 'markdown-container',
  value: '# welcome to cherry editor!',
});

引擎模式 (语法编译)

// 引入Cherry引擎核心构建
// 引擎配置项与Cherry通用,以下文档内容仅介绍Cherry核心包
import CherryEngine from 'cherry-markdown/dist/cherry-markdown.engine.core';
const cherryEngineInstance = new CherryEngine();
const htmlContent = cherryEngineInstance.makeHtml('# welcome to cherry editor!');

// --> <h1>welcome to cherry editor!</h1>

⚠️ 关于 mermaid

核心构建包不包含 mermaid 依赖,需要手动引入相关插件。

import 'cherry-markdown/dist/cherry-markdown.css';
import Cherry from 'cherry-markdown/dist/cherry-markdown.core';
import CherryMermaidPlugin from 'cherry-markdown/dist/addons/cherry-code-block-mermaid-plugin';
import mermaid from 'mermaid';

// 插件注册必须在Cherry实例化之前完成
Cherry.usePlugin(CherryMermaidPlugin, {
  mermaid, // 传入mermaid引用
  // mermaidAPI: mermaid.mermaidAPI, // 也可以传入mermaid API
  // 同时可以在这里配置mermaid的行为,可参考mermaid官方文档
  // theme: 'neutral',
  // sequence: { useMaxWidth: false, showSequenceNumbers: true }
});

const cherryInstance = new Cherry({
  id: 'markdown-container',
  value: '# welcome to cherry editor!',
});

异步加载

recommend 使用异步引入,以下为 webpack 异步引入样例。

import 'cherry-markdown/dist/cherry-markdown.css';
import Cherry from 'cherry-markdown/dist/cherry-markdown.core';

const registerPlugin = async () => {
  const [{ default: CherryMermaidPlugin }, mermaid] = await Promise.all([
    import('cherry-markdown/src/addons/cherry-code-block-mermaid-plugin'),
    import('mermaid'),
  ]);
  Cherry.usePlugin(CherryMermaidPlugin, {
    mermaid, // 传入mermaid引用
  });
};

registerPlugin().then(() => {
  // 插件注册必须在Cherry实例化之前完成
  const cherryInstance = new Cherry({
    id: 'markdown-container',
    value: '# welcome to cherry editor!',
  });
});

配置

所有的配置基本都在/src/Cherry.config.js里进行了标注,具体看这里

例子

点击查看 各种例子

客户端

正在开发中... ,可见/client目录

拓展

自定义语法

可以看这里

自定义工具栏

cherry有五种工具栏位置,如下: cherry工具栏

每个位置都可以增加自定义工具栏,具体可以看这里

单元测试

选用 Jest 作为单元测试工具,主要看好其断言、支持异步和快照测试等功能。单元测试分为两个部分,CommonMark 用例测试和快照测试。

CommonMark 测试用例

运行 yarn run test:commonmark 测试 CommonMark 官方用例,运行速度较快。

用例位于 test/suites/commonmark.spec.json, 比如:

{
  "markdown": "  \tfoo\tbaz\t\tbim\n",
  "html": "<pre><code>foo\tbaz\t\tbim\n</code></pre>\n",
  "example": 2,
  "start_line": 363,
  "end_line": 368,
  "section": "Tabs"
},

对于这个测试点,Jest 会比对 Cherry.makeHtml(" \tfoo\tbaz\t\tbim\n") 生成的 html 与用例中的预期结果 "<pre><code>foo\tbaz\t\tbim\n</code></pre>\n"。Cherry Markdown 的匹配器已忽略 data-line 等私有属性。

CommonMark 规范及测试用例可参考:https://spec.commonmark.org/

快照测试

调用 yarn run test:snapshot 运行快照测试,书写用例可参考 test/core/hooks/List.spec.ts,新用例第一次运行会自动生成快照,第二次会将生成内容与快照进行比对。如果需要重新生成快照,将 test/core/hooks/__snapshots__ 下对应的旧快照删除再运行一次即可。

快照测试运行速度较慢,仅在易出错且包含 Cherry 特色语法的 Hook 上使用。

Contributing

欢迎加入我们打造强大的 Markdown 编辑器。当然你也可以给我们提交特性需求的 issue。 在写特性功能之前,你需要了解 这些内容

License

Apache-2.0

Tencent is pleased to support the open source community by making CherryMarkdown available. Copyright (C) 2021 THL A29 Limited, a Tencent company. All rights reserved. CherryMarkdown is licensed under the Apache License Version 2.0 except for the third-party components listed below. License for CherryMarkdown: -------------------------------------------------------------------- Apache License Version 2.0, January 2004 http://www.apache.org/licenses/ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 1. Definitions. "License" shall mean the terms and conditions for use, reproduction, and distribution as defined by Sections 1 through 9 of this document. "Licensor" shall mean the copyright owner or entity authorized by the copyright owner that is granting the License. "Legal Entity" shall mean the union of the acting entity and all other entities that control, are controlled by, or are under common control with that entity. For the purposes of this definition, "control" means (i) the power, direct or indirect, to cause the direction or management of such entity, whether by contract or otherwise, or (ii) ownership of fifty percent (50%) or more of the outstanding shares, or (iii) beneficial ownership of such entity. "You" (or "Your") shall mean an individual or Legal Entity exercising permissions granted by this License. "Source" form shall mean the preferred form for making modifications, including but not limited to software source code, documentation source, and configuration files. "Object" form shall mean any form resulting from mechanical transformation or translation of a Source form, including but not limited to compiled object code, generated documentation, and conversions to other media types. "Work" shall mean the work of authorship, whether in Source or Object form, made available under the License, as indicated by a copyright notice that is included in or attached to the work (an example is provided in the Appendix below). "Derivative Works" shall mean any work, whether in Source or Object form, that is based on (or derived from) the Work and for which the editorial revisions, annotations, elaborations, or other modifications represent, as a whole, an original work of authorship. For the purposes of this License, Derivative Works shall not include works that remain separable from, or merely link (or bind by name) to the interfaces of, the Work and Derivative Works thereof. "Contribution" shall mean any work of authorship, including the original version of the Work and any modifications or additions to that Work or Derivative Works thereof, that is intentionally submitted to Licensor for inclusion in the Work by the copyright owner or by an individual or Legal Entity authorized to submit on behalf of the copyright owner. For the purposes of this definition, "submitted" means any form of electronic, verbal, or written communication sent to the Licensor or its representatives, including but not limited to communication on electronic mailing lists, source code control systems, and issue tracking systems that are managed by, or on behalf of, the Licensor for the purpose of discussing and improving the Work, but excluding communication that is conspicuously marked or otherwise designated in writing by the copyright owner as "Not a Contribution." "Contributor" shall mean Licensor and any individual or Legal Entity on behalf of whom a Contribution has been received by Licensor and subsequently incorporated within the Work. 2. Grant of Copyright License. Subject to the terms and conditions of this License, each Contributor hereby grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare Derivative Works of, publicly display, publicly perform, sublicense, and distribute the Work and such Derivative Works in Source or Object form. 3. Grant of Patent License. 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You may reproduce and distribute copies of the Work or Derivative Works thereof in any medium, with or without modifications, and in Source or Object form, provided that You meet the following conditions: You must give any other recipients of the Work or Derivative Works a copy of this License; and You must cause any modified files to carry prominent notices stating that You changed the files; and You must retain, in the Source form of any Derivative Works that You distribute, all copyright, patent, trademark, and attribution notices from the Source form of the Work, excluding those notices that do not pertain to any part of the Derivative Works; and If the Work includes a "NOTICE" text file as part of its distribution, then any Derivative Works that You distribute must include a readable copy of the attribution notices contained within such NOTICE file, excluding those notices that do not pertain to any part of the Derivative Works, in at least one of the following places: within a NOTICE text file distributed as part of the Derivative Works; within the Source form or documentation, if provided along with the Derivative Works; or, within a display generated by the Derivative Works, if and wherever such third-party notices normally appear. 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END OF TERMS AND CONDITIONS Other dependencies and licenses: Open Source Software Licensed under the MIT License: -------------------------------------------------------------------- 1. babel Copyright (c) 2014-present Sebastian McKenzie and other contributors 2. codemirror Copyright (C) 2017 by Marijn Haverbeke <marijnh@gmail.com> and others 3. core-js-pure Copyright (c) 2014-2021 Denis Pushkarev 4. mitt Copyright © Jason Miller 5. virtual-dom Copyright (c) 2014 Matt-Esch. 6. mermaid Copyright (c) 2014 - 2018 Knut Sveidqvist 7. juice Copyright (c) 2021 Automattic Terms of the MIT License: -------------------------------------------------------------------- Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. 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简介

CherryMarkdown 是一款 Javascript Markdown 编辑器,具有开箱即用、轻量简洁、易于扩展、语法和功能丰富等特点,可以运行在浏览器或服务端 (Node. 展开 收起
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