Often on the internet to read the technology blog, it's found that written blog isn't only high quality, but also excellent text layout. Blogs often have links to keywords, such as linux links to linux that add a wiki to the ipad and add an apple online ipad page to it. What solutions do you generally use for this kind of effect. My own idea is to first do a hash of the keyword, key to value, then search for the full text of the blog, find the key, replace the value. Do you want to do this. Or there's a better solution, or something like can be used directly. Please advise each other. Thank you.