Dynamically Truncating Output?

[rcbellN51]

Is there a way to dynamically truncate the output of a module to the width of the terminal? I'd like to truncate it to 1 less then the final column of the terminal. I did see that there is functionality to truncate using "format": "{:-50}" and all the different variations of that format notation. But that just leaves a bunch of extra space in a wide terminal and truncates at the specified length.

My reason for asking is that I've configured a dynamic width for output that is fully boxed in. Here's a small section as example:

When I shrink the terminal everything is fine (no line wrap), the output is truncated at the last column, but it prevents the final "|" from printing. Like:

If anyone has thoughts on how, or some other method I'm missing that could be used, I'd love to hear it.