Hi all,
I was writting my own formatexpr (please, see
http://vimgcwsyntax.google.com/), but found some difficulties that I
summarize below:
1. First and most important one is that I don't get any errors that
occur inside my FormatExpr() function when it is called from
formatexpr (although I get errors when I call it from : ). Why? Is
it because it is executed in a sandbox environment? Is it possible
to disable this feature? If not, what is the common way to debug
formatexpr functions? I attached a simplified .vimrc, that shows the
problem.
2. :he formatexpr says: "The expression may be evaluated in the
|sandbox|". It says *may be*. Sorry, English is not my native
language... When you use may, it means that it is optional? If so,
how disable/enable that?
3. :he sandbox says: "These items are not allowed in the sanbox: ...
- changing the buffer text", but from a formatexpr function, it is
always changed with append() and setline(). How to explain that?
Vim version here is 7.2.411.
Thank you!
--
Silas Silva
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function FormatExpr()
this line should cause an error
[code here...]
endfunction
set formatexpr=FormatExpr()
set tw=20
