Check a youtube url with stringregexp

[FireFox]

Hi,

Everything is in the title, here is the different youtube urls i know, If you've got more then tell me

http://www.you tube.com/watch?v=videoid << remove the space
http://www.youtube.com/embed/videoid
http://youtu.be/videoid

If you can not make one regexp because the short youtube url is verry different from the others, you can make two regexps.

Br, FireFox.

Edited May 6, 2011 by FireFox

[PsaltyDS]

No, everything is not in the title. Actually, very little is in the title (or body) of the OP.

What does "Check" mean? Check for what?

What have you tried? Post a short symptom reproducer script.

Given your example input URLs, what were you looking for from each by way of a RegExp?

[GEOSoft]

In order to get any decent help with RegExps you need to show us the possible input values and the output that you expect from each one.

[FireFox]

In order to get any decent help with RegExps you need to show us the possible input values and the output that you expect from each one.

I though I had enough explained, anyway.

I'm crap with regexp so I havn't got it working at all.

I want to know if the string is a valid youtube video url, and I think the most efficient way is to do it with regexp.

Here is the possibilities : (remove the spaces)

http://www. youtube.com/watch?v=wagn8Wrmzuc
http://www. youtube.com/watch?v=wagn8Wrmzuc&feature=player_embedded
http://youtu.be/wagn8Wrmzuc
http://www.youtube.com/embed/wagn8Wrmzuc

FireFox.

Edited May 5, 2011 by FireFox

[PsaltyDS]

So, list your rules for YouTube validity. Once you do that clearly, implementing the rules in code is the easy part. If the rules are vague (or non-existent as we have here), then no amount of code can help you.

[GEOSoft]

If StringRegExp($sStr, "(?m:^)(http://[w.]*youtu\.?be[.com]*/.+)(?:\v|$)+") Then
    $sValid = " valid"
Else
    $sValid = " not valid"
EndIf

MsgBox(0, "Result", $sStr & @CRLF & "is " & $sValid)

Edited May 5, 2011 by GEOSoft

[GEOSoft]

Glad it worked and infact there was no real reason why it should based on the information you gave us. Don't blame anyone if it fails at some point.

[FireFox]

Glad it worked and infact there was no real reason why it should based on the information you gave us. Don't blame anyone if it fails at some point.

yep, it doesn't work in some cases, I will try to explain exactly what I want :

The only thing which can change in the url is the video ID, for example in your example if I remove the dot before "com" it will say that the link is valid but it's not the case.

Between [ ], the string must be the same or the url will be invalid :

[http://www.youtube.com/watch?v=]wagn8Wrmzuc
[http://www.youtube.com/watch?v=]wagn8Wrmzuc&feature=player_embedded
[http://youtu.be/]wagn8Wrmzuc
[http://www.youtube.com/embed/]wagn8Wrmzuc

FireFox.

Edited May 5, 2011 by FireFox

[bwochinski]

Am a bit rusty on some Regex, but throwing in an attempt...

Global $aURLs[5] = ["http://www.youtube.com/watch?v=wagn8Wrmzuc", _
                "http://www.youtube.com/watch?v=wagn8Wrmzuc&feature=player_embedded", _
                "http://www.youtubecom/watch?v=wagn8Wrmzuc", _
                "http://youtu.be/wagn8Wrmzuc", _
                "http://youtube.com/embed/wagn8Wrmzuc"]

For $sStr In $aURLs

    If StringRegExp($sStr, "http://(?:www\.)?youtu(?:\.be/|be\.com/(?:embed/|watch\?v=))[^&%\v+?].*") Then
        ConsoleWrite("VALID! - " & $sStr & @CRLF)
    Else
        ConsoleWrite("NOT VALID! - " & $sStr & @CRLF)
    EndIf

Next

[smartee]

yep, it doesn't work in some cases, I will try to explain exactly what I want :

The only thing which can change in the url is the video ID, for example in your example if I remove the dot before "com" it will say that the link is valid but it's not the case.

Between [ ], the string must be the same or the url will be invalid :

[http://www.youtube.com/watch?v=]wagn8Wrmzuc
[http://www.youtube.com/watch?v=]wagn8Wrmzuc&feature=player_embedded
[http://youtu.be/]wagn8Wrmzuc
[http://www.youtube.com/embed/]wagn8Wrmzuc

FireFox.

hi FireFox,

here's my shot at it,

#include <Array.au3>

$matchArr = StringSplit("Invalid,Valid", ",", 2)
$RegExp="(?i)^http://((www\.)?youtube\.com/(watch\?v=|embed/)|youtu\.be/)[a-z0-9_]{11}($|&[a-z0-9_=&]*)"

Dim $testArray[10][2]
$testArray[0][0] = "http://www.youtube.com/watch?v=wagn8Wrmzuc"
$testArray[1][0] = "http://www.youtu.be/wagn8Wrmzuc"
$testArray[2][0] = "http://youtube.com/watch?v=wagn8Wrmzuc"
$testArray[3][0] = "http://youtu.be/wagn8Wrmzuc"
$testArray[4][0] = "http://www.youtube.com/watch?v=wagn8WrmzucR"
$testArray[5][0] = "http://.youtube.com/watch?v=wagn8Wrmzuc"
$testArray[6][0] = "http://www.youtube.com/watch?v=wagn8Wrmzuc&feature=player_embedded"
$testArray[7][0] = "http://www.youtue.com/watch?v=wagn8Wrmzuc"
$testArray[8][0] = "http://youtube.com/embed/wagn8Wrmzuc"
$testArray[9][0] = "shttp://www.youtube.com.watch?v=wagn8Wrmzuc"

For $i = 0 To 9
    $testArray[$i][1] = $matchArr[StringRegExp($testArray[$i][0],$RegExp)]
Next

_ArrayDisplay($testArray)

Hope this helps

-smartee

Am a bit rusty on some Regex, but throwing in an attempt...

Global $aURLs[5] = ["http://www.youtube.com/watch?v=wagn8Wrmzuc", _
                "http://www.youtube.com/watch?v=wagn8Wrmzuc&feature=player_embedded", _
                "http://www.youtubecom/watch?v=wagn8Wrmzuc", _
                "http://youtu.be/wagn8Wrmzuc", _
                "http://youtube.com/embed/wagn8Wrmzuc"]

For $sStr In $aURLs

    If StringRegExp($sStr, "http://(?:www\.)?youtu(?:\.be/|be\.com/(?:embed/|watch\?v=))[^&%\v+?].*") Then
        ConsoleWrite("VALID! - " & $sStr & @CRLF)
    Else
        ConsoleWrite("NOT VALID! - " & $sStr & @CRLF)
    EndIf

Next

Your code mistakes some of my invalid urls to be valid, you should indicate the expressions' start and end, and www.youtu.be/... shouldn't be valid

Hope this helps

[bwochinski]

Your code mistakes some of my invalid urls to be valid, you should indicate the expressions' start and end, and www.youtu.be/... shouldn't be valid

Hope this helps

Good catch, thanks. I did forget to specify start and end and I didn't realize that youtu.be didn't work with the www, never thought to check.

Think your expression covers it all though.

[FireFox]

Your code mistakes some of my invalid urls to be valid, you should indicate the expressions' start and end, and www.youtu.be/... shouldn't be valid

I didn't know that, you made a very good work !

@smartee, @bwochinski

Thanks both for your help

Br, FireFox.