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  • Tom Lany



    I am trying to use regular expressions to add links in the appropriate places (regular links, hashtags, @ replies) in a Twitter RSS feed I have on my blog.

    Currently, I am using the following functions:

    $text = preg_replace('@(https?://([-\w\.]+)+(:\d+)?(/([\w/_\.]*(\?\S+)?)?)?)@i', '<a href="$1">$1</a>', $text); /* URLs */

    $text = preg_replace('/([^a-zA-Z0-9-_&])@([0-9a-zA-Z_]+)/','$1<a href="$2">@$2</a>',$text); /* @replies */

    $text = preg_replace('/([^a-zA-Z0-9-_&])#([0-9a-zA-Z_]+)/',"$1<a href="$2">#$2</a>",$text); /* hashtags */

    The functions work so long as there is not a hashtag or @ reply at the beginning of the tweet. A link is not applied to hashtags or @ replies in this position. For regular links in this position, a link is properly applied.

    Let me know if you have any questions, and thanks in advance for your assistance!

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