Jon Crowe wrote:
> Under certain circumstances (see below for steps to reproduce) a
> session created by the :mksession command creates errors when
> attempting to load the session.
>
> The circumstances are:
>
> There is a window with a split.
> At least one of the buffers has a filename containing an apostrophe.
>
> The steps to reproduce are as follows:
>
> vim -N -u NONE
> :w x'x
> :split
> :w xx
> :mksession
> :qa
> vim -N -u NONE -S
>
> The errors are:
>
> "x'x" 0L, 0C
> Error detected while processing /tmp/Session.vim:
> line 159:
> E116: Invalid arguments for function bufexists('x\'x') | buffer x\'x | else |
> edit x\'x | endif
> E15: Invalid expression: bufexists('x\'x') | buffer x\'x | else | edit x\'x |
> endif
> line 300:
> E171: Missing :endif
>
> The offending line in the Session.vim file is:
>
> if bufexists('x\'x') | buffer x\'x | else | edit x\'x | endif
>
> If I manually edit this line as follows:
>
> if bufexists('x''x') | buffer x\'x | else | edit x\'x | endif
>
> the error disappears and the session loads without error and as expected.
>
> I realise this is an obscure and minor bug, but I hope it is of some use to
> report it. Thank you if you have the time or inclination to look into it.
> Also thank you if you don't, as I love Vim anyway.
>
> Other info that may be of use:
>
> VIM - Vi IMproved 8.1 (2018 May 18, compiled Jan 05 2019 20:53:12)
> Included patches: 1-693
>
> Running on Debian testing.
>
> If there is any further information I have naively omitted that you
> need, please let me know.
I can reproduce it. The session escaping code only works for a double
quoted string. I'll make a fix.
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