How to remove line blank with regex html to plain text?

Question

I using regex to convert html to plain text.

Can you help me to remove line blank with regex

My html:

<div class="short-description">
<div class="short-description">
<div class="short-description">
<div class="short-description">
<div class="short-description">
<div class="short-description">
<div class="short-description">
<div class="short-description">
<div class="short-description">
<ul style="margin: 0px; padding: 0px; font-family: Tahoma, Verdana; color: #000000; font-size: 13px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 1; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: #ffffff;">
<li style="margin: 0px; padding: 0px; font-family: Tahoma, Verdana !important;">Processor: Intel® Xeon® E5-2403 1.80GHz, 10M Cache, 6.4GT/s QPI, No Turbo, 4C, 80W, Max Mem 1066MHz</li>
<li style="margin: 0px; padding: 0px; font-family: Tahoma, Verdana !important;">Memory:&nbsp; 8GB (4x2GB) 1333MHz, Single Ranked LV RDIMMs up to 16GB</li>
<li style="margin: 0px; padding: 0px; font-family: Tahoma, Verdana !important;">Hard Drive: 1TB 7.2K RPM NL SAS 3.5-inch Hot Plug</li>
<li style="margin: 0px; padding: 0px; font-family: Tahoma, Verdana !important;">Storage Controller: H310 raid controller Support RAID 0, 1, 5, 10</li>
<li style="margin: 0px; padding: 0px; font-family: Tahoma, Verdana !important;">File Access Protocols: CIFS, NFS, FTP, SMB3.0, SMB Direct (RDMA)</li>
<li style="margin: 0px; padding: 0px; font-family: Tahoma, Verdana !important;">Internal Drive Support: 4 x 3.5" hot-plug drive bays</li>
<li style="margin: 0px; padding: 0px; font-family: Tahoma, Verdana !important;">Power: 1 x 550W Power Supply (redundant)</li>
<li style="margin: 0px; padding: 0px; font-family: Tahoma, Verdana !important;">OS: Window Storage 2008 Workgroup R2 Edition</li>
<li style="margin: 0px; padding: 0px; font-family: Tahoma, Verdana !important;">Form Factor 1U rack mount system</li>
<li style="margin: 0px; padding: 0px; font-family: Tahoma, Verdana !important;">Warranty: 3 Year ProSupport and NBD On-site Service</li>
</ul>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
                            </div>

And my regex:

Regex.Replace(Model.MetaDescription, @"<(.|\n)*?>","")

This result (image): Result regex.replace

How like in bellow image Result regex.replace

Don't use RegEx with HTML. RegEx is for regular languages and HTML isn't one. You should use HtmlAgilityPack to parse HTML. — Enigmativity, Jan 31 '16 at 07:00

score 1 · Answer 1 · edited May 23 '17 at 11:45

1

As it has mentioned here, you can use the free and open source HtmlAgilityPack. Check the sample

a method that converts from HTML to plain text.
var plainText = ConvertToPlainText(string html);
Feed it an HTML string like

hello world! it is me! !

And you'll get a plain text result like:
hello world!
it is me!

edited May 23 '17 at 11:45

Community

1
1

answered Jan 31 '16 at 04:42

Ghasem

14,455
21
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Richard Schneider · Answer 2 · 2016-02-01T00:52:58.720

0

If I understand the question, you want to remove anything between angle brackets <> and also remove newlines, then try this regex

@"<[^>]*>|\n"

However, as Alex Jolig suggests, use HTML Agility Pack.

edited Feb 01 '16 at 00:52

answered Jan 31 '16 at 04:43

Richard Schneider

34,944
9
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@"<.*>|\n" also remove text, – TRI ÂN Jan 31 '16 at 04:51
In result these line blank in top and bottom, I want remove it, and retain text. – TRI ÂN Jan 31 '16 at 04:52

score 0 · Answer 3 · answered Feb 01 '16 at 01:43

Don't use RegEx with HTML. RegEx is for regular languages and HTML isn't one. You should use HtmlAgilityPack to parse HTML.

It becomes very easy:

var document = new HtmlAgilityPack.HtmlDocument();
document.LoadHtml(html);

string[] lines =
    document
        .DocumentNode
        .Descendants("li")
        .Select(x => System.Net.WebUtility.HtmlDecode(x.InnerText))
        .ToArray();

string text = String.Join(Environment.NewLine, lines);

With that I get:

Processor: Intel® Xeon® E5-2403 1.80GHz, 10M Cache, 6.4GT/s QPI, No Turbo, 4C, 80W, Max Mem 1066MHz
Memory:  8GB (4x2GB) 1333MHz, Single Ranked LV RDIMMs up to 16GB
Hard Drive: 1TB 7.2K RPM NL SAS 3.5-inch Hot Plug
Storage Controller: H310 raid controller Support RAID 0, 1, 5, 10
File Access Protocols: CIFS, NFS, FTP, SMB3.0, SMB Direct (RDMA)
Internal Drive Support: 4 x 3.5" hot-plug drive bays
Power: 1 x 550W Power Supply (redundant)
OS: Window Storage 2008 Workgroup R2 Edition
Form Factor 1U rack mount system
Warranty: 3 Year ProSupport and NBD On-site Service

How to remove line blank with regex html to plain text?

3 Answers3