Rails - Use Redcarpet as Markdown interpreter, how can I make all links have a html targer _blank attribute?

I use Redcarpet as my backend Markdown interpreter solution.

I want all links to have a html target attribute and its value equal to '_blank', but I can't find any solution for it.

Could any one help me? Thanks.

Solution

Finally I write JavaScript to handle it...

I think this is the fastest way....

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