XF 1.4 Remove custom BB code tag if it's not finished

[chickenputty]

When inserting an image and typing: [IMG]this is a test
and posting the thread it will appear like: this is a test
(it drops the tag)

However, with the custom BB code I made typing: [head]this is a test
tries to use all the text following the tag for the {text} in the BB code

Here are my custom BB code options:

BB Code Tag: head
Title: Minecraft Player Head
Description: Inserts a Minecraft player head using the wrapped text as a name (or UUID).
Replacement Mode: Simple Replacement
Supports Option Parameter: No
HTML Replacement: <img src="http://cravatar.eu/helmavatar/{text}/16.png" alt="{text}" height="16" width="16">
Within This BB Code:
x Disable smilies
x Disable line break conversion
x Disable auto-linking
x Stop parsing BB code
x Display HTML replacement when empty​

How can I make it perform how the[IMG] tag does? That is, dropping the initial tag if there is no end tag.

 

[Mike]

BB code is automatically closed and rendered. There are cases where this will work with the image tag; we just detect that it's not a URL and don't render it in your example.

To do something like that, you would need a custom callback for your BB code.