Re: [PATCH v1 1/6] docs/match: add pattern matching examples

[randomlooser@riseup.net]

Il giorno sab, 28/01/2023 alle 14.18 +0100, Maxime Devos ha scritto:
> 
> 
> > +(define (english-base-ten->number name)
> > +  (match name
> > +    ('zero   0)
> > +    ('one    1)
> > +    ('two    2)
> > +    ('three  3)
> > +    ('four   4)
> > +    ('five   5)
> > +    ('six    6)
> > +    ('seven  7)
> > +    ('eight  8)
> > +    ('nine   9)))
> > +
> > +(english-base-ten->number 'six)
> > +@result{} 6
> 
> This is a suboptimal example; this would be better done with 'case'.
> I propose replacing it with another example, or adding a note that
> one 
> would normally use 'case' for this.

The point of this example is not to proficiently program in scheme

It is to introduce possibly naive people to pattern matching
effectively

The aim is to be didactic, there's no implication that this is
idiomatic scheme

I'd pay attention at the curse of knowledge that may be at play, here