[Haskell-cafe] ANNOUNCE: graphviz-2999.0.0.0

[Brandon S. Allbery KF8NH]

On Jul 19, 2009, at 04:13 , Ivan Lazar Miljenovic wrote:
> 1. Some Attribute values take something like (Either Bool String);  
> this
>   is used when upstream indicates that two different types of values
>   are allowed.  Typically in this kind of situation, the allowed  
> String
>   values are limited to a few specific values, so the usage of Either
>   typically indicates that they should be replaced with a custom value
>   type.

Shouldn't String then be replaced by a sum type?  In fact, as  
described this would subsume the Either as well.

 > -- replace Either Bool String: AttrN are the strings, AltValue the  
bool
 > data upstreamValue = AttrA | AttrB | AltValue

-- 
brandon s. allbery [solaris,freebsd,perl,pugs,haskell] allbery at kf8nh.com
system administrator [openafs,heimdal,too many hats] allbery at ece.cmu.edu
electrical and computer engineering, carnegie mellon university    KF8NH


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