Here is the test page for the 'YellowBlock' processor.

This processor puts the block contents into a fancy pale yellow box, to higlight it. Note that it processes the markup in the content.

processor block [edit section]

Here is the processor block:

{{{#!YellowBlock
content
 * a bullet
'''bold'''
}} }

result output [edit section]

Here is the result from the processor:

expected result [edit section]

The expected output should be: