fractions bbcode and rte

[KT Walrus]

I implemented a quick bbcode for showing pretty fractions, using this php code:

{ return preg_replace( "/\s*(\d+)\s*\/\s*(\d+)\s*/i", "<span style='font-size:80%'>^\\1& #8260;_\\2</span>", $content ); }

For [fraction]3/11[/fraction] it shows as: ³⁄₁₁ (only the fraction height is reduced by 80% so that it looks normal)

This works, but I haven't been able to figure out how to get the RTE to show the formatted fraction instead of the BBCode. What I really want is to implement a drop down menu that allows the user to just pick a formatted fraction from the drop down. Maybe all fraction up to 16th such as:

¹⁄₂
¹⁄₃ ²⁄₃
¹⁄₄ ²⁄₄ ³⁄₄
¹⁄₅ ²⁄₅ ³⁄₅ ⁴⁄₅

So, I've gotten half of what I want, but it occurred to me that IPS could implement this much better. I'd like to see a new dropdown in the editor to allow you to insert a fraction (from the list) and have this fraction appear formatted in the RTE editor.

    private function _buildOutput( $content )

[bfarber]

The RTE can't format custom bbcode. I don't think you understand the complexity in what you are asking. :P Unfortunately, I don't see this as a realistic possibility.