XF 1.4 IMG-Tag with alternate Text

[vFranky]

Hello,

I am using in ALT-image tag in my vBulletin forum. Instead of the normal IMG-tag, it accepts an alternate image-text which is helpful for search engine optimization.

It is defined as a vBulletin Tag => <img src="{option}" alt="{param}" />
And is used like this => [alt=http://www.image-source.com/example-image.jpg]Alt Text[/alt]

How to do the conversation to XenForo?

Kind regards,
Frank

 

[Mike]

You should be able to create a custom BB code that functions similarly.

 

[vFranky]

I think it should be simple. But I cannot find appropriate examples and have no idea.
What would be the content for HTML replacement?

 

[Mike]

Looks to me like you've set the BB code to not take an option, when you do require it.