pipeline

raw := "<p>演示html-pipeline实现自动修正空格</p><p>这是第2个段落</p>"

pipe := NewPipeline([]Filter{
	AutoCorrectFilter{},
})

out, _ := pipe.Call(raw)
fmt.Println(out)

Output:

<p>演示 html-pipeline 实现自动修正空格</p><p>这是第 2 个段落</p>

raw := `<div>Hello "Foo's Bar"</div>`

pipe := NewPipeline([]Filter{
	HTMLEscapeFilter{},
})

out, _ := pipe.Call(raw)
fmt.Printf(out)

Output:

<div>Hello "Foo's Bar"</div>

// Custom blackfriday HTML render options
renderer := blackfriday.NewHTMLRenderer(blackfriday.HTMLRendererParameters{
	Flags: blackfriday.UseXHTML |
		blackfriday.NofollowLinks |
		blackfriday.CompletePage,
})

// Custom blackfriday extensions
extensions := blackfriday.Tables |
	blackfriday.FencedCode |
	blackfriday.Autolink |
	blackfriday.Strikethrough |
	blackfriday.SpaceHeadings |
	blackfriday.HardLineBreak |
	blackfriday.NoEmptyLineBeforeBlock

pipe := NewPipeline([]Filter{
	MarkdownFilter{
		Opts: []blackfriday.Option{
			blackfriday.WithRenderer(renderer),
			blackfriday.WithExtensions(extensions),
		},
	},
	SanitizationFilter{},
})

raw := `# Hello world
<script>alert;</script>
<style>body {}</style>

| Name | Location |
| ---- | --- |
| Jason | Chengdu |

This is [html-pipeline](https://github.com/longbridgeapp/html-pipeline) Markdown filter.`

out, _ := pipe.Call(raw)
fmt.Println(out)

Output:

<h1>Hello world</h1>

<p>alert;<br/>
body {}</p>

<table>
<thead>
<tr>
<th>Name</th>
<th>Location</th>
</tr>
</thead>

<tbody>
<tr>
<td>Jason</td>
<td>Chengdu</td>
</tr>
</tbody>
</table>
<p>This is <a href="https://github.com/longbridgeapp/html-pipeline" rel="nofollow">html-pipeline</a> Markdown filter.</p>

text := `This is a @test_huacn-lee of some cool @中文名称 features that @mi_asd be
@use-ful but @don't. look at this email@address.com. @bla! I like #nylas but I don't
like to go to this apple.com?a#url. I also don't like the ### comment blocks.
But #msft is cool.`

pipe := NewPipeline([]Filter{
	MentionFilter{
		Format: func(name string) string {
			return fmt.Sprintf(`<mention>%s</mention>`, name)
		},
	},
})

out, _ := pipe.Call(text)
fmt.Println(out)

Output:

This is a <mention>test_huacn-lee</mention> of some cool <mention>中文名称</mention> features that <mention>mi_asd</mention> be
<mention>use-ful</mention> but <mention>don</mention>'t. look at this email@address.com. <mention>bla</mention>! I like #nylas but I don't
like to go to this apple.com?a#url. I also don't like the ### comment blocks.
But #msft is cool.

text := `This is a @test_huacn-lee of some cool @中文名称 features that @mi_asd be
@use-ful but @don't. look at this email@address.com. @bla! I like #nylas but I don't
like to go to this apple.com?a#url. I also don't like the ### comment blocks.
But #msft is cool.`

pipe := NewPipeline([]Filter{
	MentionFilter{
		Format: func(name string) string {
			return fmt.Sprintf(`<mention>@%s</mention>`, name)
		},
	},
	MentionFilter{
		Prefix: "#",
		Format: func(name string) string {
			return fmt.Sprintf(`<hashtag>#%s</hashtag>`, name)
		},
	},
})

out, _ := pipe.Call(text)
fmt.Println(out)

Output:

This is a <mention>@test_huacn-lee</mention> of some cool <mention>@中文名称</mention> features that <mention>@mi_asd</mention> be
<mention>@use-ful</mention> but <mention>@don</mention>'t. look at this email@address.com. <mention>@bla</mention>! I like <hashtag>#nylas</hashtag> but I don't
like to go to this apple.com?a#url. I also don't like the ### comment blocks.
But <hashtag>#msft</hashtag> is cool.

pipe := NewPipeline([]Filter{
	MarkdownFilter{},
	SanitizationFilter{},
	MentionFilter{
		Prefix: "#",
		Format: func(name string) string {
			return fmt.Sprintf(`<a href="https://github.com/topic/%s">#%s</a>`, name, name)
		},
	},
	MentionFilter{
		Prefix: "@",
		Format: func(name string) string {
			return fmt.Sprintf(`<a href="https://github.com/%s">@%s</a>`, name, name)
		},
	},
})

markdown := `# Hello world

![](javascript:alert) [Click me](javascript:alert)

This is #html-pipeline example, @huacnlee created.`
out, _ := pipe.Call(markdown)
fmt.Printf(out)

Output:

<h1>Hello world</h1>

<p><img alt=""/> Click me</p>

<p>This is <a href="https://github.com/topic/html-pipeline">#html-pipeline</a> example, <a href="https://github.com/huacnlee">@huacnlee</a> created.</p>

package main

import (
	"fmt"

	"github.com/PuerkitoBio/goquery"
)

type TestFilter struct{}

func (f TestFilter) Call(doc *goquery.Document) (err error) {
	doc.Find("img").Each(func(i int, node *goquery.Selection) {
		node.SetAttr("style", "max-width: 100%")
	})

	return
}

func main() {
	/*
		type TestFilter struct{}

		func (f TestFilter) Call(doc *goquery.Document) (err error) {
			doc.Find("img").Each(func(i int, node *goquery.Selection) {
				node.SetAttr("style", "max-width: 100%")
			})

			return
		}
	*/
	pipe := NewPipeline([]Filter{
		SanitizationFilter{},
		TestFilter{},
	})

	html := `<img onclick="javascript:alert" src="https://google.com/foo.jpg"/>`

	out, _ := pipe.Call(html)
	fmt.Println(out)
}

Output:

<img src="https://google.com/foo.jpg" style="max-width: 100%"/>

pipe := NewPipeline([]Filter{
	SanitizationFilter{},
})

html := `<p style="margin: 0pt;"><img alt="" src="https://helloworld.com/images/a4c7e5612772b2429791790c7e54eeba.jpg" width="100px" style="width: 600px; height: 484px;"></p>
<p style="margin: 0pt;"><span style="font-family: 宋体; font-size: 10.5pt; mso-spacerun: &quot;yes&quot;; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: &quot;Times New Roman&quot;; mso-font-kerning: 1.0000pt;"><font color="#000000" face="宋体">美股研究社</font><font color="#000000">1</font><font color="#000000"><font face="宋体">月</font><font face="Calibri">8</font><font face="宋体">日消息，知名投资机构</font></span></p>
<blockquote>This is blockquote</blockquote>
<table><tr><th>Foo</th><tr><td width="100">Bar</td></tr></table>
<ul><li>First line</li><li><strong>S<b>e</b><i>c</i>ond</strong> line</li></ul>
<ol><li>First line</li><li>Second line</li></ol>`

out, _ := pipe.Call(html)
fmt.Println(out)

Output:

<p><img alt="" src="https://helloworld.com/images/a4c7e5612772b2429791790c7e54eeba.jpg"/></p>
<p><span>美股研究社1月8日消息，知名投资机构</span></p>
<blockquote>This is blockquote</blockquote>
<table><tbody><tr><th>Foo</th></tr><tr><td width="100">Bar</td></tr></tbody></table>
<ul><li>First line</li><li><strong>S<b>e</b><i>c</i>ond</strong> line</li></ul>
<ol><li>First line</li><li>Second line</li></ol>

pipe := NewPipeline([]Filter{
	SimpleFormatFilter{},
})

raw := `Guided tours of Go programs.

First-Class Functions in Go
Generating arbitrary text: a Markov chain algorithm`

out, _ := pipe.Call(raw)
fmt.Println(out)

Output:

<p>Guided tours of Go programs.</p><p>First-Class Functions in Go<br/>Generating arbitrary text: a Markov chain algorithm</p>