2021-10: On the Right Side

Write code that:

has a second argument T that is a character scalar, vector or a vector of character vectors/scalars.

has a first argument W that is a positive integer specifying the width of the result.

returns a right-aligned character array R of shape ((2=|≡T)/≢T),W meaning R is one of the following:

a W-wide vector if T is a simple vector or scalar.

a W-wide matrix with the same number rows as elements of T if T is a vector of vectors/scalars.

if an element of T has length greater than W, truncate it after W characters.