On Mon, Jun 22, 2020 at 09:40:38PM EDT, Tim Chase wrote:
>
> function! Unfootnote()
> " make all the footnotes on one line
> $?^$?+,$g/^\[\@!.*\n\[\@!/,/\n\[\|\%$/j
> " gather the footnotes into b:a
> let b:a={}
> $?^$?,$g/\[\d\+\]/let b:a[getline('.')]=getline(line(".")+1)
> " find all the footnote references
> " and replace them with the corresponding text
> 1,$?^$?s/\[\d\+]/\='^['.b:a[submatch(0)].']'/g
> endfunc
When I run the above function (as copy-pasted from this thread) I get an
'E16: Invalid range' error on the g(global) command on some files.
Interestingly the function still does the job as if nothing had
happened. I went back to the explanation you gave in your earlier post
and after comparing with other files where I do not get the error
I can't find what's wrong with it. It looks like the range defining the
footnotes section is perfectly valid and that the Vim has
a problem with the pattern used in the g:/pattern/j command (I did
a $?^$?+,$print and it prints the footnotes section to the screen and
does not yell at me).
The interesting point is that the g: command's pattern has two parts
separated by a comma... which makes it suspiciously look like...
a range!
So is Vim confused by the regex that makes up the /pattern/…?
The problem occurs for instance with the following example file:
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Debitis neque ipsum eos aut. Voluptatum ratione voluptatum facere voluptas.
Maxime qui ad autem ducimus quae [36]. Officia labore iusto voluptas ad quia
nostrum.
[36]
Ullam consequatur.
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
But if I add a carriage return between Ullam & consequatur like so:
[36]
Ullam
consequatur.
... the problem goes away!
Not sure if it's some kind of corner case or this little experimented
has unearthed a bug in Vim's regex logic... and unfortunately I have no
idea how to investigate further.
Assuming you manage to reproduce the error is there any way you could
take a (quick) look?
Thanks,
CJ
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