On 27/11/2009 15:00, Ian Lynagh wrote:
On Fri, Nov 27, 2009 at 10:28:52AM +0000, Simon Marlow wrote:
On 26/11/2009 11:50, Ian Lynagh wrote:
Wed Nov 25 15:19:01 PST 2009 Ian Lynagh<[email protected]>
* Fix a bug in alternative layout rule
M ./compiler/parser/Lexer.x +1
Great that you've implemented this. Are you planning to do a proposal
for Haskell 2011?
If e.g. John doesn't get there first, then yes, assuming we can find a
definition we're happy with.
It doesn't particularly bother me that the simpler rule can't handle
some of the obscure cases. What bothers me more is that I'm not sure
that the proposed rule is more understandable as a specification. It is
definitely easier to implement, but we need a simple way to explain
layout to the programmer.
Yes, I agree. First I want to get to the point where validate goes
through with the flag enabled by default (currently it compiles a number
of modules, but then fails due to SrcLoc's thinking tabs are 1 character
wide), and then we can look at tweaking the rule.
SrcLocs think tabs are 1 character wide? But surely our error messages
are column-accurate normally, so how can this be?
Cheers,
Simon
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