Is there a way to create a macro that will convert tabs to 4 spaces?

If you use the tabs in codeblock (using C++ language and default theme), it converts them to a single space.

It seems that when converted to html the tab becomes a single space – so if it is possible to change it so that tab automatically inserts spaces up to column position modulo tab_spacing (maybe 4 by default).

Example of the problem - enter this into a code block:

tab test - should all be aligned - tab spacing is eight here
one tabs
eight spaces
4 spaces then tab
end

Then view it in HTML or export to PDF