On 01/16/2013 03:39 PM, Georg Baum wrote:
Jean-Marc Lasgouttes wrote:
Le 16/01/2013 08:53, Liviu Andronic a écrit :
Consider that the updated layout (in 2.0.5) contains _new_ commands
and that the user creates a document using those new commands that the
2.0.5 layout supports. What happens if a collaborator opens this
document in 2.0.3? Will it work, or will opening/compilation break
down? In other words, is the versioning scheme necessary in such a
case?
With the current (non-)ability of LyX to cope with missing styles in a given
layout: Yes. However, it would be easy to implement an "edit-only" mode in
LyX 2.1, that would not allow export (because the information is missing),
but editing of such a document. Then new styles in a given .layout file
could be allowed for any 2.1.x release: People could still collaborate using
different point releases, only if they want to print or view the typeset
document they would need to install a new layout.
It's currently possible to edit such a file without data loss, if I'm
not mistaken. The unrecognized layouts are treated as "Standard", but
they retain their labels. It is even possible to insert new such layouts
(or insets) and save the file. So the "edit only" mode isn't needed, so
far as I can see.
It's worth remembering too that it is *trivial* to install new layouts.
Someone who opens a file that has a new versioned from 2.0.8 in some
earlier version can easily get that new layout, without having to
install 2.0.8 itself. Perhaps we should add a recipe to the docs and
point users there when appropriate.
Richard
