[Haskell-cafe] Interesting new user perspective
jgoerzen at complete.org
Sun Oct 12 22:34:44 EDT 2008
On Sun, Oct 12, 2008 at 06:39:58PM -0700, Jonathan Cast wrote:
> On Fri, 2008-10-10 at 18:13 -0500, John Goerzen wrote:
> > On Fri, Oct 10, 2008 at 02:29:54PM -0700, Jonathan Cast wrote:
> > > > I've
> > > > got a Haskell book here (Hutton, 170 pages) that doesn't even mention
> > > > how to open a file!
> > >
> > > That short, and you expect minor features like that (that not every
> > > program even needs) to be squeezed in?
> > Uh... yes. Opening and closing files, command-line parsing, etc --
> > needed by almost every program. Aside from some very simple
> > stdin-to-stdout filters, it is difficult to imagine a program where
> > you don't need to open a file!
> Again, you need a bigger imagination. My day job is almost entirely
> DB-centric; code that uses file I/O is very much a special case.
Not saying that it doesn't exist (though of course most databases
still use file I/O at some level, even if abstracted). Just that it's
very, very common. I wouldn't support at all teaching database
interactions or network programming before file I/O.
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