How to avoid repetitive filter specification in mako %def's?

Question

I find myself repeating the same filter attribute over all the %def's in my mako code:

<%def name="mydef1(a,b)" filter="trim">
# something something something
</%def>

... 

<%def name="mydef2(b)" filter="trim">
# something something something
</%def>

Is there a way to specify a default set of filters for all %def's and avoid the repetitive 'filter="trim"' in my code?

I noticed there is an option to specify default filters for expression filters, but i could not find something similar for %def's.

Answer 1

There are a couple workarounds you can use:

1. You can use the default_filters argument if you are okay importing the defs programmatically or by loading them from a file.

2. You can nest the defs within a parent def, and apply the filtering to the parent def (I don't have mako on my current machine, so I can't text this, but I am 99% sure this works, please call me out if I am wrong.)

   <%def name="filterdefs()" filter="trim">
   
       <%def name="mydef1(a,b)">
       # something something something
       </%def>
   
       <%def name="mydef2(b)">
       # something something something
       </%def>
   
   </def>
   

3. Finally, you could use buffer_filters as suggested in the comments. However, instead of adding buffered="True" you can just call the def with capture(myDef) instead of myDef()