Re: Pattern matching: what does (= f pat) do?

Re: Pattern matching: what does (= f pat) do?

[Abhiseck Paira]

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> Dear guile users,

> The pattern matching manual has a strange description for the (= f pat)
> pattern. It reads:

>     (= field pat)                   a ``field'' of an object

> However, the next example shows how you can apply a function in field
> without having anything to do with a field of an object.

> Based on the given example, and some experiments on my part, I think
> that the description should be:

>     (= f pat) applies f, and matches pat in the result

> Am I correct?

> Vivien

It seems your interpretation is correct!  Thanks to your message I could
figure out what this spec means as it didn't make much sense in the
manual or in srfi-200 documentation[0] (The specification seems to have
been copied verbatim from srfi-200).

[0] https://srfi.schemers.org/srfi-200/srfi-200.html


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Pattern matching: what does (= f pat) do?

[Vivien Kraus via General Guile related discussions]

Dear guile users,

The pattern matching manual has a strange description for the (= f pat)
pattern. It reads:

    (= field pat)                   a ``field'' of an object

However, the next example shows how you can apply a function in field
without having anything to do with a field of an object.

Based on the given example, and some experiments on my part, I think
that the description should be:

    (= f pat) applies f, and matches pat in the result

Am I correct?

Vivien