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rhowardiv/contentCall.twitter.js

Created December 14, 2011 20:51
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contentCall function for charCount plugin to take twitter URL-shortening into account
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contentCall.twitter.js
function contentWithTwitterURLShortening(c) {
// t.co URLs are currently max 20 chars, but since that is subject to
// expansion we're leaving some elbow room and assuming 25
return c.replace(/http(s?):\/\/[-\w]+(\.\w[-\w]*)+(:\d+)?(\/[^.!,?;"'<>()\[\]{}\s\x7F-\xFF]*(?:[.!,?]+[^.!,?;"'<>()\[\]{}\s\x7F-\xFF]+)*)?/g, "http$1://t.co/xxxxxxxxxxxxx");
}
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The regex is edited down from Friedl's Mastering Regular Expressions (3rd ed. p. 76). Hope I entered it correctly; it tests okay.

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