How to parse an M3U list using regex in C#

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Hi there, I want to use regex to parse a m3u list. Let's suppose we have this m3u item:

#EXTINF:-1, tvg-name="THE NAME" tvg-logo="THE LOGO" group-title="THE TITLE",THE ITEM
https://www.SampleSite.com

I want to extract THE NAME,THE LOGO, THE TITLE, THE ITEM, and the URL line.

What I have tried:

I've used this pattern and it can extract all parts except "THE ITEM" that follows after a comma(,)

C#

string pattern = @"\btvg-name=""([^""]+)"".tvg-logo=""([^""]+)"".group-title=""([^""]+)"".*(,?\w).\n*(https?\S+)"

Posted 5-Oct-22 4:54am

Jake-J

Updated 5-Oct-22 8:21am

PIEBALDconsult

v2

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2 solutions

Solution 2

Just a few interesting links to help building and debugging RegEx.
Here is a link to RegEx documentation:
perlre - perldoc.perl.org[^]
Here is links to tools to help build RegEx and debug them:
.NET Regex Tester - Regex Storm[^]
Expresso Regular Expression Tool[^]
RegExr: Learn, Build, & Test RegEx[^]
Online regex tester and debugger: PHP, PCRE, Python, Golang and JavaScript[^]
This one show you the RegEx as a nice graph which is really helpful to understand what is doing a RegEx: Debuggex: Online visual regex tester. JavaScript, Python, and PCRE.[^]
This site also show the Regex in a nice graph but can't test what match the RegEx: Regexper[^]

Posted 5-Oct-22 8:17am

Patrice T

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OriginalGriff · Accepted Answer · 2022-10-05T05:31:00

Solution 1

Try this:

C#

\btvg-name="([^"]+)".tvg-logo="([^"]+)".group-title="([^"]+)",(.*?)\n*(https?\S+)

If you are going to work with regexes, get a copy of Expresso[^] - it's free, and it examines and generates Regular expressions.

Posted 5-Oct-22 5:31am

OriginalGriff

Comments

Jake-J 5-Oct-22 13:39pm

Thanks! That works. And about Expresso[^], I've downloaded it but I can't exactly figure out how to use it.

OriginalGriff 5-Oct-22 14:05pm

See the "Help" menu - it covers most of it.