Turns out that the barrier keeping Adi's ajax-powered backlink previews from working across blogging platforms is the lack of a consistent markup for post content. So here's a request for all platform administrators, blogging software designers and template designers. Let's wrap your platform's version of the <$blogitembody$> tag in a unique class to make it easy to find. A quick survey of the folks in the know (Stephen) indicates that the required class would be
class="entry-content"
If all of the <$blogitembody$> tags in Blogger, as well as equivalent tags in Moveable Type, Live Journal, Typepad, Wordpress etc were defined by this class, then the ajax preview of backlinks would be able to grab the data that is required, and previews would be available for backlinks from multiple sources. This modification strikes me as an excellent example of the need for interoperability and consistency between platforms. Let's see whether we can effect a change!
See Also: Ajaxified Display of Internal Backlinks
Filed in: webtech, blogtech, blogging
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Today, the Blogger template defacto standard for where to find the blog post content is in a div whose class attribute contains the word "post", in some form (or, in XPath terms, //div[contains(@class,'post')]).
In practice, this particularly fits three very (and possibly evan most) common variants on the theme, class="post-body", class="post" and class="post three", and given how CSS works, it would be a lot of work for blog authors to change the class attribute not to include any other names but "entry-content".
My (Hoodwink druid's) tip, thus: lax it to contain post in the class attribute, and regarding the implementation, prefer a div that contains post-body over other candidates, and one that has this as a separate word over any other candidates.