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POUsing Embedly api regex in c#
 

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  1. POUsing Embedly api regex in c#
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    <p>Embedly has a great regex generator with which you can use to verfiy the correctnes of services urls(<a href="http://api.embed.ly/tools/generator" rel="nofollow noreferrer">http://api.embed.ly/tools/generator</a>). It generates javascript regexes, but unfortunately it does not generate c# regex expressions. As far as I know though, c# uses the same ECMA regex definition, and I should therefore be able to use the in C#</p> <p>So what I would like to achieve is take the generated regex from the embdly site and just paste it into my c# code.</p> <p>The javascript regex would look like this: </p> <pre><code>/http:\/\/(.*youtube\.com\/watch.*|.*\.youtube\.com\/v\/.*|youtu\.be\/.*|.*\.youtube\.com\/user\/.*#.*|.*\.youtube\.com\/.*#.*\/.*|picasaweb\.google\.com.*\/.*\/.*#.*|picasaweb\.google\.com.*\/lh\/photo\/.*|picasaweb\.google\.com.*\/.*\/.*)/i </code></pre> <p>and should match urls like:</p> <p><a href="http://picasaweb.google.com/westerek/LadakhDolinaMarkha?feat=featured#5497194022344000402" rel="nofollow noreferrer">http://picasaweb.google.com/westerek/LadakhDolinaMarkha?feat=featured#5497194022344000402</a> <a href="http://www.youtube.com/watch?v=GVDc1uXda6Y&amp;feature=related" rel="nofollow noreferrer">http://www.youtube.com/watch?v=GVDc1uXda6Y&amp;feature=related</a></p> <p>What I have so far is the following:</p> <pre><code>Regex regex = new Regex( "[/http:\\/\\/(.*youtube\\.com\\/watch.*|.*\\.youtube\\.com\\/"+ "v\\/.*|youtu\\.be\\/.*|.*\\.youtube\\.com\\/user\\/.*#.*|.*\\."+ "youtube\\.com\\/.*#.*\\/.*|picasaweb\\.google\\.com.*\\/.*\\/"+ ".*#.*|picasaweb\\.google\\.com.*\\/lh\\/photo\\/.*|picasaweb"+ "\\.google\\.com.*\\/.*\\/.*)/i]", RegexOptions.IgnoreCase | RegexOptions.CultureInvariant | RegexOptions.IgnorePatternWhitespace | RegexOptions.Compiled ); </code></pre> <p>.. but this only gives me partial matches.. </p> <p>EDIT: Solution: Just paste the embedly javascript regex expression into strEmbdlyRegex string in the following snippet.</p> <pre><code> string strEmbdlyRegex = @"/http:\/\/(.*youtube\.com\/watch.*|.*\.youtube\.com\/v\/.*|youtu\.be\/.*|.*\.youtube\.com\/user\/.*#.*|.*\.youtube\.com\/.*#.*\/.*)/i"; string strRegx = strEmbdlyRegex.Remove(0, 1); strRegx = strRegx.Remove(strRegx.IndexOf("("), 1); strRegx = strRegx.Remove(strRegx.LastIndexOf(")/i"), 3); strRegx = strRegx + "]"; regex = new Regex( strRegx, RegexOptions.IgnoreCase | RegexOptions.CultureInvariant | RegexOptions.ECMAScript | RegexOptions.Compiled ); </code></pre>
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      1. USDan P
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    1. COThat still isn't right. For one thing, you're still adding that `]` to the end. And you want to get rid of the leading `/` and the trailing `/i`, but the `(` and `)` are doing useful work; leave them in.
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      1. USAlan Moore
    2. COfor those needing some code more (functional) code, I've created a project on codeplex: http://embedlynet.codeplex.com/
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      1. USAyKarsi
 

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