Andy Teucher

I think the pertinent information is in here: http://cran.cnr.berkeley.edu/doc/manuals/r-devel/R-ints.html#Encodings-for-CHARSXPs. Basically it seems like, on Windows, functions which use C code like `message` and `warning` can't properly deal with UTF-8 strings...

Nope. I think as soon as `message`/`warning` get hold of it, it kills it: 

Yeah, could do `gsub` on the \u strings only if os == windows. But I wouldn't want to do it wholesale and make them look worse for everybody else. Some...

Agreed! It does function on Windows, so we should go for it.

So I guess this isn't really fixed yet - the appveyor build is failing on the examples using non-ascii characters (`anxiouscat`). Would you want to put those in a `dontrun`...

It is, but because on Windows `get_who()` removes anxiouscat etc from the vector whose names are used in `match.arg`. That's why they all work on Linux/Mac, but the animals with...

Yeah, good idea. That's the simplest solution

It looks like an either/or [here](https://github.com/mbloch/mapshaper/blob/6bf4eed7cef1a0fd89834f3b8299610db2e72022/src/commands/mapshaper-filter-islands.js#L23-L27)

No pressure as I know how much work it is maintaining OS software, but I agree this would be a great feature. Thanks as always for mapshaper!

@sckott so we can push the more important fixes out the door, I'm going to suggest we move this to the v0.7 milestone