gregm@otc.otca.oz.au (Greg McFarlane) (03/14/91)
It seems that you cannot have more than one "undo-able" vi command in the
one macro. This means that a complex vi macro must be split into several
smaller macros.
I'll explain what I mean by an example. Edit a file and type ":map Q rXY".
This should map the Q key to "replace the character under the cursor with X
and yank the line". But when I type Q, vi tells me "Can't yank inside
global/macro" and goes into ex mode. However if I type ":map Q rXT" and
":map T Y", everything is OK. I get this behaviour on a Sparc 1+, a Sun 3/50
and a Pyramid.
Does this happen at your site? Is there a reason for this madness?
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Phone: +61 2 287 3139 Fax: +61 2 287 3299torek@elf.ee.lbl.gov (Chris Torek) (03/18/91)
In article <2483@otc.otca.oz> gregm@otc.otca.oz.au (Greg McFarlane) writes: >It seems that you cannot have more than one "undo-able" vi command in the >one macro. This means that a complex vi macro must be split into several >smaller macros. ... Is there a reason for this madness? It has a lot to do with the `chipping to fit on a PDP-11' that I mentioned a few articles back. The innards of vi share this buffer with that one, with horribly complex rules. As a result you can occasionally find a sequence that causes bizarre results. It used to be the case, for instance, that combining wrapmargin with abbreviations (I think) could goof up the file you were editing. -- In-Real-Life: Chris Torek, Lawrence Berkeley Lab CSE/EE (+1 415 486 5427) Berkeley, CA Domain: torek@ee.lbl.gov
gast@maui.cs.ucla.edu (David Gast) (03/21/91)
In article <2483@otc.otca.oz> gregm@otc.otca.oz.au (Greg McFarlane) writes: >It seems that you cannot have more than one "undo-able" vi command in the >one macro. This means that a complex vi macro must be split into several >smaller macros. Not correct. Consider: :map X rxlrx (where is X can be another character) This map changes the character under the cursor to x and then changes the character to the right to x. u will undo both changes. As a general rule, your statement is not correct. > vi tells me "Can't yank inside global/macro" Vi has a known bug with respect to the unnamed buffer. David Gast