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output formatting - Can one prevent operators like `Factor` or `Apart` from changing full form of some algebraic expressions?


In this question I will talk about a toy example, it should be clear what do I actually mean in general. Also, not only Factor but also Apart and several other important operators have this behavior.



Say, Factor[1/(1 - t)] produces -(1/(-1 + t)) which is not just formatting but full form change: FullForm[1/(1 - t)] is


Power[Plus[1,Times[-1,t]],-1]

while FullForm[Factor[1/(1 - t)]] gives


Times[-1,Power[Plus[-1,t],-1]]

which I find sort of inconvenient sometimes. Not that I care about internals of representing objects, most probably it is optimized in some way, but when I need to work with such expressions, introduction of redundant extra minus signs, etc. is which I find inconvenient.


What would be the correct way to deal with this? One related question I found is How to put terms in lexicographic order? where one of possibilities named was to issue


$PrePrint = PolynomialForm[#, TraditionalOrder -> True] &;


but some adverse effects of it were also mentioned. And in fact, TraditionalOrder is not what I would need anyway, it gives something still different, namely (in this particular case) -(1/(t-1)).


Also, after having posted the question, I discovered in the Related column to the right another one, How do I prevent Mathematica from reformatting the expressions that I copy as LaTeX?, but also in this case I cannot really figure out whether I can use answers there for my purposes.


As suggested by bbgodfrey here is a more illustrative example. Issuing


enter image description here


gives


enter image description here


while what I would like to see is


enter image description here




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