ruby - 如何从字符串中删除 HTML 编码的字符？

Question

我有一个包含一些 HTML 编码字符的字符串，我想删除它们:

"<div>Hi All,</div><div class=\"paragraph_break\">< /></div><div>Starting today we are initiating PoLS.</div><div class=\"paragraph_break\"><br /></div><div>Please use the following communication protocols:<br /></div><div>1. Task Breakup and allocation - Gravity<br /></div><div>2. All mail communications - BC messages<br /></div><div>3. Reports on PoC / Spikes: Writeboard<br /></div><div>4. Non story related tasks: BC To-Do<br /></div><div>5. All UI and HTML will communicated to you through BC.<br /></div><div>6. For File sharing, we'll be using Dropbox.<br /></div><div>7. Use Skype for lighter and generic desicussions. However, in case you need any approvals, data for later reference, etc, then please use BC. PoLS conversation has been created on skype.</div><div class=\"paragraph_break\"><br /></div><div>You'll have been given necessary accesses to all these portals. Please start using them judiciously.</div><div class=\"paragraph_break\"><br /></div><div>All the best!</div><div class=\"paragraph_break\"><br /></div><div>Thanks,<br /></div><div>Saurav<br /></div>"

Answer 1

您想做的事情有很多方法。也许看看你为什么要这样做会有所帮助。通常当我想删除编码的 HTML 时，我想恢复 HTML 的内容。 Ruby 有一些模块可以让它变得简单。

require 'cgi'
require 'nokogiri'

html = "<div>Hi All,</div><div class=\"paragraph_break\">< /></div><div>Starting today we are initiating PoLS.</div><div class=\"paragraph_break\"><br /></div><div>Please use the following communication protocols:<br /></div><div>1. Task Breakup and allocation - Gravity<br /></div><div>2. All mail communications - BC messages<br /></div><div>3. Reports on PoC / Spikes: Writeboard<br /></div><div>4. Non story related tasks: BC To-Do<br /></div><div>5. All UI and HTML will communicated to you through BC.<br /></div><div>6. For File sharing, we'll be using Dropbox.<br /></div><div>7. Use Skype for lighter and generic desicussions. However, in case you need any approvals, data for later reference, etc, then please use BC. PoLS conversation has been created on skype.</div><div class=\"paragraph_break\"><br /></div><div>You'll have been given necessary accesses to all these portals. Please start using them judiciously.</div><div class=\"paragraph_break\"><br /></div><div>All the best!</div><div class=\"paragraph_break\"><br /></div><div>Thanks,<br /></div><div>Saurav<br /></div>"

puts CGI.unescapeHTML(html)

哪些输出:

<div>Hi All,</div><div class="paragraph_break">< /></div><div>Starting today we are initiating PoLS.</div><div class="paragraph_break"><br /></div><div>Please use the following communication protocols:<br /></div><div>1. Task Breakup and allocation - Gravity<br /></div><div>2. All mail communications - BC messages<br /></div><div>3. Reports on PoC / Spikes: Writeboard<br /></div><div>4. Non story related tasks: BC To-Do<br /></div><div>5. All UI and HTML will communicated to you through BC.<br /></div><div>6. For File sharing, we'll be using Dropbox.<br /></div><div>7. Use Skype for lighter and generic desicussions. However, in case you need any approvals, data for later reference, etc, then please use BC. PoLS conversation has been created on skype.</div><div class="paragraph_break"><br /></div><div>You'll have been given necessary accesses to all these portals. Please start using them judiciously.</div><div class="paragraph_break"><br /></div><div>All the best!</div><div class="paragraph_break"><br /></div><div>Thanks,<br /></div><div>Saurav<br /></div>

如果我想更进一步，删除标签，检索所有文本:

puts Nokogiri::HTML(CGI.unescapeHTML(html)).content

将输出:

Hi All,Starting today we are initiating PoLS.Please use the following communication protocols:1. Task Breakup and allocation - Gravity2. All mail communications - BC messages3. Reports on PoC / Spikes: Writeboard4. Non story related tasks: BC To-Do5. All UI and HTML will communicated to you through BC.6. For File sharing, we'll be using Dropbox.7. Use Skype for lighter and generic desicussions. However, in case you need any approvals, data for later reference, etc, then please use BC. PoLS conversation has been created on skype.You'll have been given necessary accesses to all these portals. Please start using them judiciously.All the best!Thanks,Saurav

当我看到那种字符串时，我通常想去哪里。

鲁比的 CGI使编码和解码 HTML 变得容易。 Nokogiri gem 使删除标签变得容易。