Is there anyway to make text field to accept templates and logics ? 

for example i have a text field in my theme setting

in this field im using a Pages block key inside a <li> tag

the out put is only {block="articles"}  

it works fine if i use the block keys in html templates but not if it comes form a text field 

 

Help appreciated 

 

 

Text input fields do not process HTML logic. You would need to run the content through the theme system to do that (which means you'll need to write some sort of processing layer when the theme setting is saved or when it is used on the front end).

If you still want to go this route, which I don't really recommend (you're creating a lot of work for yourself IMO), look at how the email class handles email subjects - this is essentially creating and processing content through the template system at run time without actually using the template system itself to store the content.

Thank you.