Rosio Pavoris

Time for another quick-and-dirty WordPress plugin.
Since Emiry likes my footnotes, I wrote a plugin that makes making them a bit easier.

Basically, the idea is that you write [1] (where 1 can be any number), and this plugin will replace it with ¹. Then, at the bottom of the post (typically, but not necessarily), you write [f1], and it will replace it with ¹. If the latter is at the start of a paragraph, it will also make said paragraph of class “footnote”, which you can then define in your CSS file or what have you to have a different style, if you so desire.

You’ll note that the ID of the anchor tag starts with a random number. This is to prevent (or at least make very unlikely) collisions in IDs if more than one post is being displayed at a time, since that breaks things. Ideally, it would use the post slug for that, but if there’s a way to retrieve a post slug from within a filter, I couldn’t find it in the WordPress API in under two minutes.

It’s not awesomely efficient (it uses regular expressions), or awesomely awesome, but it works well enough.
The code is here; as always, save that as a .php file, upload to your plugins folder, and activate. If you have suggestions for improvement, let me know.