Text limit

I use World Edit on build, but the text length limitation prohibits long commands and that's quite bothering me. I'm using the //g command to make shapes, but functions can be really long and I can't make them due to text limit.

For instance:

Spoiler

As I'm studying équations of rotated shapes, I have to convert every coordonate by a quite long function. for instance, to make a torus rotated 1 radian in the X axis, and 1 radian in the Y axis, the command should be (according to my calculations):
//g stone (0.75-sqrt((cos(1)*x+sin(1)*cos(1)*z-sin(1)*x)^2+(cos(1)*y-sin(1)*cos(1)*z-sin(1)*x)^2))^2+(cos(1)*z+sin(1)*y)^2 < 0.25^2
That's just an example, this isn't the regular use of World Edit but the text limit is still restricting a lot of normal uses of World Edit (when you don't know the ID of a block and have to write the full name for instance, like "stained_hardened_clay:yellow")

Is text limitation decided by the server? If yes, will it be possible to disable text limit for World Edit commands, or commands in general.