Re: Semantic of pcase `seq' and `map' patterns

[Nicolas Petton]

Michael Heerdegen <address@hidden> writes:

> It should probably also say that supernumerary elements of the object
> sequence are ignored if less PATTERNS are given, and the match doesn't
> fail.

Yes.

>
> BTW, if I want to match [1 2 3 4] and bind a to 1 and b to (2 3 4), is
> this possible using the `seq' pattern?

Sure, using "&rest":

    (seq-let (a &rest b) [1 2 3 4]
      (format "The first is %s and the rest is %s" a b))


You can also ignore elements:

    (seq-let (a _ &rest b) [1 2 3 4]
      (format "The first is %s and the rest without the second is %s" a
      b))

Nico

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