I made a plugin to show random quotes from a text file I'd used on a previous site. I think I pretty well followed all the guidelines, CSS styling best practices, and made some configurable options (namely the quotes filename). It occurred to me, based on work I'd done on former sites that mixed apps such as phpBB and Gallery2, phpBB and Mantis, or other combinations of apps that a single quotes file might be used by different apps/themes, so I figured I'd better make it configurable.
Of course, then I realized that there are many existing quote files out there that people might want to use, and they probably use a different format than the one I have. So, I thought I'd make a configurable RegEx expression to parse individual lines.
Arguably, most users would find reformatting a large text file rather simple compared to the task of writing a RegEx, but I digress :-) That, and I could always post a list of common ones for different common quote file formats (if there are any?).
Anyhow, after sufficiently over-thinking the problem and over-complicating my task, I find myself in need of putting a RegEx expression in a text field for the plugin option.
It does seem like a bug, since the CLEARTEXT option implies that it will not be screwed with. But while displaying HTML would process formatting, this shouldn't happen in a text box. So, it does seem like it might be a bug in the code for displaying those fields. I might get a chance to dig through it over the next couple of days.