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html-to-md

v0.8.6

Published

A JS library for convert HTML<String> to markdown<String>, gzip 10kb

Downloads

22,800

Readme

一个用于转换HTMLMarkdown的工具。English


Build Status npm codecov npm bundle size

特点

  • 快速,小巧,无任何依赖,gzip 10kb

  • 支持nodeJS,参数(html 文本)为字符串

  • 200+单元测试和模块测试,覆盖率97%

注意:只有有效规范的 HTML 文本才能准确显示结果,如<p>abc<<i>abc</>等都是无效文本

效果

live-demo

为什么做这个工具

最初的动机是希望将leetcode-cn上的题目和自己的解答搬到github, 但是获取的介绍都是html格式文本,因此有了将html转换为markdown的需求。

找了几个工具,结果并不是很合胃口,有的不支持nodejs,有的并不能很好的转换,最终决定自己写一个来用。

刚开始只是写了一个比较简单的,但已经能够处理我的需求。

但后来偶尔一次使用,面对更复杂的html格式,就会出现混乱,这个库也就是一个重构版, 当然,它可能还存在很多bug没有发现,但希望能在后续不断完善,如果有发现bug,请提issuePR,我会第一时间进行处理。

使用说明

安装

npm -i html-to-md

使用
const html2md = require('html-to-md')
// or if you're using ES6
import html2md from 'html-to-md'

console.log(
  html2md('<strong><em>strong and italic</em></strong>', options, force)
)
// ***strong and italic***

参数(可选):

options:

优先权:skipTags > emptyTags > ignoreTags > aliasTags

例:

html2md('<><b><i>abc</i></b></>', { ignoreTags: [''] })
// ''

html2md('<><b><i>abc</i></b></>', { skipTags: [''] })
// ***abc***

html2md('<><b><i>abc</i></b></>', { emptyTags: [''] })
// abc

html2md('<><b><i>abc</i></b></>', {
  skipTags: [''],
  aliasTags: { b: 'ul', i: 'li' },
})
// *  abc

html2md('<test><b><i>abc</i></b></test>', { renderCustomTags: 'SKIP' })
// ***abc***

force(Boolean)(默认 false)

| 值 | 说明 | | :---: | :---------------------------------: | | true | 表示强制使用自定义配置 | | false | 对自定义配置使用Object.assign操作 |

例:

// 默认 skipTags 为 ['div','html','body']

// 配置一:
html2md('<div><b><i>abc</i></b></div>', { skipTags: ['b'] }, false)
// skipTags 为 ['div','html','body','b']

// 配置二:
html2md('<div><b><i>abc</i></b></div>', { skipTags: ['b'] }, true)
// 经过配置后 skipTags 为 ['b']

TagListenerProps

| key | 说明 | | ------------- | ----------------------------------------------------------------- | | parentTag | 父标签名,没有则为 null | | prevTagName | 上一个标签名,没有则为 null | | nextTagName | 下一个标签名,没有则为 null | | isFirstSubTag | 是否当前父标签内部的第一个子标签 | | attrs | 当前标签的 attributes,以 object 集合方式,例如 { src, href ... } | | innerHTML | 内部 HTML 字符串 | | match | 当前的 HTML 对应 Markdown 的匹配符号 | | language? | 当前标签语言,只在 pre 标签中出现 | | isSelfClosing | 是否自闭和标签 |

TagListenerReturnProps

| key | 说明 | | --------- | ----------------------------------------------------------------- | | attrs | 当前标签的 attributes,以 object 集合方式,例如 { src, href ... } | | match | 返回一个新的自定义匹配符号 | | language? | 返回自定义 pre 标签的 language |

支持标签

  • a
  • b
  • blockquote
  • code
  • del
  • em
  • h1~h6
  • hr
  • i
  • img
  • input
  • li
  • ol
  • p
  • pre
  • s
  • strong
  • table
  • tbody
  • td
  • th
  • thead
  • tr
  • ul