Supply and override render rules

[light-matters]

This is a feature request more than a bug.

Exists:
Currently, rendering to LaTeX etc. is controlled centrally from the 'render' namespace. There are special handlers for particular functions and symbols but everything is hard coded internally.

Problem:
The representation is then closely coupled to the underlying clojure symbols in the majority of cases. There is also no easy way for a user to specify their own symbol definitions either for newly defined symbols or for overriding the existing choices.

Feature:
At the moment, I can think of two ways of helping this. First of all, it may be useful for developer's to define the default symbols for their new functions and types using some form of metadata convention. This would allow for compartmentalized local design decisions. Secondly, and I think more importantly, the user could supply a symbol map to the appropriate representation function.
e.g.

(->TeX (= 'force (* 'mass 'acceleration))
{:environment-options {:label \"label!\"}
 :symbols {:force 'F
                 :mass 'm
                 :acceleration 'a}})

This would give a lot of flexibility and help separate the mathematical and representational content. The user could also provide their own functions for additional special-handlers.

Just some first thoughts :).

[littleredcomputer]

Another thought that recently came up would be to allow tagging a literal-function with rendering advice