On Apr 25, 2019, at 2:37 PM, John Rose <john.r.r...@oracle.com> wrote: > > TL;DR: - Before, and watch out for \u00XX, - Disallow, > - Disallow, - (see next) - Support \LineTerminator as > both explicit layout control and opt-out (no \-).
P.S. One more argument in favor of doing \LineTerminator now, which is even better than "it's more economical than \-": 2D MLS's, with rectangle extraction, endow newlines, spaces and tabs with lexical significance. They are no longer passive payload characters, but instead they join quote " and backslash \ as active delimiting characters. It would be, now that I think of it, crazy *not* to allow *all three* of them to be escaped. (Yes, the mostly-invisible tab character should be escapable, if it is semantically significant to rectangle boundaries.) (And, yes, these extra escapes will sometimes cause columns not to line up. That's life with escapes.) Whether \LineTerminator also gobbles up following horizontal space is a separate question. But if space or tab can be escaped, then it's trivial to indicate a space or tab that should not be gobbled by \LT. You just escape it. And since LT is a 2D feature, it is not wrong to consider allowing it to gobble in 2 dimensions.
