> Without trying to complicate the discussion, I used > > .\" > > Not > \# > > The former is a pure comment. It does not enter into any processing.
This is not correct. The escape `\"' strips everything to the end of the line but *not* the final newline. Consequently, .\" is equivalent to .<newline> A leading dot without a following macro name is an undefined request that gets ignored. On the other hand, `\#' ignores everything to the end of the line *including* the final newline. This means that e.g. Test \# foo Test produces Test Test as expected. It's a matter of taste whether you are going to use `.\"' or `\#' for full-line comments. Werner