Youtube phrasing with regexe.

@Lawrence_FieldsAug 04.2008

Will this regexe phrase most youtube links or am I missing something?

[CODE]/(w{4}://w{3}.youtube.com/watch?v=w{11})/[/CODE]

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@Declan1991Aug 04.2008 — #w is a-zA-Z_- so it will not accept numbers which are in Youtube URLs if I recall correctly.

And what is

(w{4}://w{3} Don't forget all the youtube subdomains, and www. is not necessary.

@Lawrence_FieldsauthorAug 04.2008 — #So trying to match http://www. is not needed? Also what should I use in place of w ?

@Declan1991Aug 04.2008 — #Well the problem is that there are also the country specific domains, so you will have to use

<i>
 </i>http://w{2,3}

for the http://www bit.

Then youtube.com/watch?v= is fine too.

Then to match alphanumerical characters, you have to use [a-zA-Z0-9]. So the final regexp would be

<i>
 </i>http://w{2,3}.youtube.com/watch?v=[a-zA-Z0-9]{11}

The other things to note are that I have escaped the full stops, because a full stop means any character, and I've done the same for all punctuation because it's the safest.

watch? doesn't match "watch?", it matches "watc" or "watch".

Youtube phrasing with regexe.

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