html2text

package module
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Published: Nov 5, 2021 License: MIT Imports: 9 Imported by: 49

README

html2text

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Converts HTML into text of the markdown-flavored variety

Introduction

Ensure your emails are readable by all!

Turns HTML into raw text, useful for sending fancy HTML emails with an equivalently nicely formatted TXT document as a fallback (e.g. for people who don't allow HTML emails or have other display issues).

html2text is a simple golang package for rendering HTML into plaintext.

There are still lots of improvements to be had, but FWIW this has worked fine for my [basic] HTML-2-text needs.

It requires go 1.x or newer ;)

Download the package

go get jaytaylor.com/html2text

Example usage

Library
package main

import (
	"fmt"

	"jaytaylor.com/html2text"
)

func main() {
	inputHTML := `
<html>
  <head>
    <title>My Mega Service</title>
    <link rel=\"stylesheet\" href=\"main.css\">
    <style type=\"text/css\">body { color: #fff; }</style>
  </head>

  <body>
    <div class="logo">
      <a href="http://jaytaylor.com/"><img src="/logo-image.jpg" alt="Mega Service"/></a>
    </div>

    <h1>Welcome to your new account on my service!</h1>

    <p>
      Here is some more information:

      <ul>
        <li>Link 1: <a href="https://example.com">Example.com</a></li>
        <li>Link 2: <a href="https://example2.com">Example2.com</a></li>
        <li>Something else</li>
      </ul>
    </p>

    <table>
      <thead>
        <tr><th>Header 1</th><th>Header 2</th></tr>
      </thead>
      <tfoot>
        <tr><td>Footer 1</td><td>Footer 2</td></tr>
      </tfoot>
      <tbody>
        <tr><td>Row 1 Col 1</td><td>Row 1 Col 2</td></tr>
        <tr><td>Row 2 Col 1</td><td>Row 2 Col 2</td></tr>
      </tbody>
    </table>
  </body>
</html>`

	text, err := html2text.FromString(inputHTML, html2text.Options{PrettyTables: true})
	if err != nil {
		panic(err)
	}
	fmt.Println(text)
}

Output:

Mega Service ( http://jaytaylor.com/ )

******************************************
Welcome to your new account on my service!
******************************************

Here is some more information:

* Link 1: Example.com ( https://example.com )
* Link 2: Example2.com ( https://example2.com )
* Something else

+-------------+-------------+
|  HEADER 1   |  HEADER 2   |
+-------------+-------------+
| Row 1 Col 1 | Row 1 Col 2 |
| Row 2 Col 1 | Row 2 Col 2 |
+-------------+-------------+
|  FOOTER 1   |  FOOTER 2   |
+-------------+-------------+
Command line
echo '<div>hi</div>' | html2text

Unit-tests

Running the unit-tests is straightforward and standard:

go test

License

Permissive MIT license.

Contact

You are more than welcome to open issues and send pull requests if you find a bug or want a new feature.

If you appreciate this library please feel free to drop me a line and tell me! It's always nice to hear from people who have benefitted from my work.

Email: jay at (my github username).com

Twitter: @jtaylor

Alternatives

https://github.com/k3a/html2text - Lightweight

Documentation

Overview

Example
inputHTML := `
<html>
	<head>
		<title>My Mega Service</title>
		<link rel=\"stylesheet\" href=\"main.css\">
		<style type=\"text/css\">body { color: #fff; }</style>
	</head>

	<body>
		<div class="logo">
			<a href="http://jaytaylor.com/"><img src="/logo-image.jpg" alt="Mega Service"/></a>
		</div>

		<h1>Welcome to your new account on my service!</h1>

		<p>
			Here is some more information:

			<ul>
				<li>Link 1: <a href="https://example.com">Example.com</a></li>
				<li>Link 2: <a href="https://example2.com">Example2.com</a></li>
				<li>Something else</li>
			</ul>
		</p>

		<table>
			<thead>
				<tr><th>Header 1</th><th>Header 2</th></tr>
			</thead>
			<tfoot>
				<tr><td>Footer 1</td><td>Footer 2</td></tr>
			</tfoot>
			<tbody>
				<tr><td>Row 1 Col 1</td><td>Row 1 Col 2</td></tr>
				<tr><td>Row 2 Col 1</td><td>Row 2 Col 2</td></tr>
			</tbody>
		</table>
	</body>
</html>`

text, err := FromString(inputHTML, Options{PrettyTables: true})
if err != nil {
	panic(err)
}
fmt.Println(text)
Output:

Mega Service ( http://jaytaylor.com/ )

******************************************
Welcome to your new account on my service!
******************************************

Here is some more information:

* Link 1: Example.com ( https://example.com )
* Link 2: Example2.com ( https://example2.com )
* Something else

+-------------+-------------+
|  HEADER 1   |  HEADER 2   |
+-------------+-------------+
| Row 1 Col 1 | Row 1 Col 2 |
| Row 2 Col 1 | Row 2 Col 2 |
+-------------+-------------+
|  FOOTER 1   |  FOOTER 2   |
+-------------+-------------+

Index

Examples

Constants

This section is empty.

Variables

This section is empty.

Functions

func FromHTMLNode

func FromHTMLNode(doc *html.Node, o ...Options) (string, error)

FromHTMLNode renders text output from a pre-parsed HTML document.

func FromReader

func FromReader(reader io.Reader, options ...Options) (string, error)

FromReader renders text output after parsing HTML for the specified io.Reader.

func FromString

func FromString(input string, options ...Options) (string, error)

FromString parses HTML from the input string, then renders the text form.

Types

type Options

type Options struct {
	PrettyTables        bool                 // Turns on pretty ASCII rendering for table elements.
	PrettyTablesOptions *PrettyTablesOptions // Configures pretty ASCII rendering for table elements.
	OmitLinks           bool                 // Turns on omitting links
	TextOnly            bool                 // Returns only plain text
}

Options provide toggles and overrides to control specific rendering behaviors.

type PrettyTablesOptions

type PrettyTablesOptions struct {
	AutoFormatHeader     bool
	AutoWrapText         bool
	ReflowDuringAutoWrap bool
	ColWidth             int
	ColumnSeparator      string
	RowSeparator         string
	CenterSeparator      string
	HeaderAlignment      int
	FooterAlignment      int
	Alignment            int
	ColumnAlignment      []int
	NewLine              string
	HeaderLine           bool
	RowLine              bool
	AutoMergeCells       bool
	Borders              tablewriter.Border
}

PrettyTablesOptions overrides tablewriter behaviors

func NewPrettyTablesOptions

func NewPrettyTablesOptions() *PrettyTablesOptions

NewPrettyTablesOptions creates PrettyTablesOptions with default settings

Source Files

Directories

Path Synopsis
cmd module

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