[Colin Paul Adams] Re: Proposal: Define UTF-8 to be the encoding of Haskell source files

Roel van Dijk vandijk.roel at gmail.com
Thu Apr 7 13:09:06 CEST 2011

On 7 April 2011 11:29, Christian Maeder <Christian.Maeder at dfki.de> wrote:
> I agree that Haskell files should be UTF-8, but I also agree that it is only
> relevant for Hackage (and Cabal) and already enforced by ghc-6.12. or
> higher.

It is relevant for all tools and systems which process Haskell sources.

> The motivation for this proposal can only be that future cabal packages will
> use more and more non-ASCII characters as is possible via
> http://hackage.haskell.org/package/base-unicode-symbols- and
> LANGUAGE pragma "UnicodeSyntax" (that happens to have no support for "\" as
> lambda symbol - probably because lambda is a letter and no symbol!)

The motivation for this proposal is interoperability of all tools and
systems which process Haskell source files. Perhaps I could have made
that more clear.

> However, I think, these extra characters only make sense for corner cases
> and should not be recommended for general purposes.

Please take a look at the following file:

I have many more like that. I do not consider Chinese a corner case.
Nor the vast amount of languages which can not be represented using

> So my view is: Stick to ASCII and only if you must (not just for casual
> reasons) use UTF-8.

When to use certain characters is not part of the proposal.

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