Re: Anaphoric macros: increase visibility

[Stefan Monnier <monnier@iro.umontreal.ca>]

>> I think the problem is in the name: it really should be called just `let`.
>> It does not do any *match*, instead the pcase pattern is only used to
>> specify how to *extract* the data we want.
> I see.  Then, `pcase-let' is somehow similar than `-let' in dash.el.

That's right.  It's called `pcase-let` because it's in the `pcase`
package (because it uses pcase pattern syntax and implementation) and
hence must use the `pcase-` prefix.

The main advantage of the pcase pattern syntax is its regularity which
makes it extensible (see for example the (re-match REGEXP) pcase-macro
I recently posted which lets you match against a regexp and extract
submatches into variables at the same time).


        Stefan