Simon Marlow wrote:
Duncan Coutts wrote:
Let's call this one proposal 0:
* Haskell98 file IO should always use UTF-8.
* Haskell98 IO to terminals should use the current locale
encoding.
and the others:
1. all text I/O is in the locale encoding (what C and Hugs do)
2. stdin/stdout/stderr and terminals are always in the locale
encoding, everything else is UTF-8
3. everything is UTF-8
Some other points that came up on IRC:
- there's a long precedent for behaving differently when connected to
a terminal. For example, 'ls' formats output in columns when
connected to a terminal, or displays output in colour. This is
a point in favour of (0).
- we might expect that "prog file" behaves the same as "prog <file",
which would rule out (2).
- (3) doesn't actually make "prog | cat" do the right thing if your
locale is not UTF-8, it just makes "prog | cat" the same as "prog"
alone (i.e. consistently wrong, which is perhaps better than
inconsistently wrong).
Cheers,
Simon
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