> In the definition of OutputForm appears
>
> Rep := SExpression
>
> but neither Rep nor SExpression appears anywhere else in the code.
>
> In contrast to that, there is no "Rep:=..." for the definition of Lis in
> list.spad.pamphlet.
>
> What exactly is "Rep := SExpression" needed for in outform.spad.pamphlet?
AFAICS it is used to construct OutputForm from a list, like:
(a : % = b : %) : % == convert [eform '_=, a, b]
Forms are silently converted to Rep, list formed, explictely
converted to Rep and comes back as %. We probably could provide
apropriate 'convert' inside OutputForm based on pretend and
use it instead of 'convert' from SExpression.
--
Waldek Hebisch
[email protected]
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