side-by-side display of two files with latex
I need to typeset a document in which a pair of files are displayed
side-by-side, each in its own column, so that the reader easily may
compare the two files.
The problem is that each file spans several pages; so the left column of
each page must be a continuation of the left column of the previous
page, and the right column of each page must be a continuation of the
right column of the previous page.
Can this be done in LaTeX? perhaps with the minipage environment?