On Wed, May 27, 2020 at 08:29:05PM -0400, Steve Litt wrote:
> On Tue, 26 May 2020 17:51:20 +0200
> Didier Kryn <kryn@???> wrote:
>
> > Le 26/05/2020 à 10:26, Steve Litt a écrit :
> > > On Mon, 25 May 2020 10:08:17 -0700
> > > Ian Zimmerman <itz@???> wrote:
> > >
> > >> On 2020-05-21 14:09, Steve Litt wrote:
>
>
>
> > > Thanks for pointing out Shepherd.
> > >
> >     +1.
> >
> >     Questions and remarks:
> >
> >     How much can one trust a program written in the Guile language and
> > running as PID1 as suggested?
>
> My experimentations with Guile
> ( http://troubleshooters.com/codecorn/scheme_guile/index.htm ) produced
> no results indicating any kind of intermittent or unexpected behavior
> in Guile.
>
> Guile is pure functional programming: With a few eceptions (like
> printing), there is no state and no side effects. Loops are done with
> recursion, best done with tail recursion. There is a purity of function
> unavailable from OOP bolt-ons like C++, Perl, and to a lesser extent
> Python. Anyone understanding recursion, functional programming and
> lambdas can handle Guile, at least for reasonably simple code. As long
> as the Guile interpreter is available on a mounted drive in early boot,
> I see no reason for caution about Guile.

Guile is an implementation of Scheme. While the functional style of
programming us the most common style there, it certaionly does have
imperative features for when you need them.

It is functional, which I think is a good thing.

It's not dogmatically purely functional, which I also think is a good
thing.

-- hendrik

>
> I think 80% of us grew up with Procedural or OOP languages and are
> familiar with them. Just like OOP requires different thought patterns
> than procedural, functional languages require (much) different thought
> patterns than Procedural or OOP. So Guile might prove a challenge to
> some, not because it's defective or complex in any way, but because
> functional programming requires much different thought patterns.
>
> SteveT
>

> Steve Litt 
> May 2020 featured book: Troubleshooting Techniques
>      of the Successful Technologist
> http://www.troubleshooters.com/techniques
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