Re: sessions and window/buffer local variables
- On 25-Oct-2012 09:29:08 +0200, Ron Aaron wrote:
> I'm in a situation where saving the values of window-local variablesWhat information do these window-local variables represent, and who sets and
> would be useful. It seems that "sessionoptions" does not have an
> option for window/buffer local variables saving.
> It would be nice to generalize the 'globals' so that a local
> window/buffer variable like "b:Saveme" would be saved with the session
consumes them? I know of some plugins that save the ID of a
matchadd()-highlighting in such variables. When restoring the session, this can
wreak havoc on the plugin when the housekeeping information is restored, but the
highlighting naturally isn't.
On a related note, I find the various side effects of variable naming confusing
and complex. From 'sessionoptions':
globals global variables that start with an uppercase letter
and contain at least one lowercase letter. Only
String and Number types are stored.
! When included, save and restore global variables that start
with an uppercase letter, and don't contain a lowercase
letter. Thus "KEEPTHIS and "K_L_M" are stored, but "KeepThis"
and "_K_L_M" are not. Only String and Number types are
I don't think that most plugin authors are aware of how the casing and type of
variables affect their potential persistence. The viminfo one is special enough
that variables must be explicitly named for it, but the sessionoptions rules
probably include a whole lot of variables that were never meant to be persisted.
-- regards, ingo
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