Andrew Coppin wrote:
Duncan Coutts wrote:
[Monoids are] used quite a lot in Cabal. Package databases are monoids.
Configuration files are monoids. Command line flags and sets of command
line flags are monoids. Package build information is a monoid.
OK, well then my next question would be "in what way is defining
configuration files as a monoid superior to, uh, not defining them as a
monoid?" What does it allow you to do that you couldn't otherwise? I'm
not seeing any obvious advantage, but you presumably did this for a
reason...
It makes those things generically combinable.
Anton
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