Extract image URL from HTML text

In Objective-C what is the best method to extract an image url from HTML text?

I've got a chunk of HTML text which may contain one or more images. I want to be a开发者_运维百科ble to get the src URL of each image.

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If you don't mind limiting yourself to iOS 4, you can use the new text checking APIs. The one you want is NSTextCheckingTypeLink and the NSRegularExpression class.

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This seems to be answered over here: parsing HTML on the iPhone

The second answer down has a detailed explanation, however you will just have to change the xpath expression to match your image tags.