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From: Zhu Zihao <all_but_last@163.com>
To: Olivier Dion <olivier.dion@polymtl.ca>
Cc: guile-devel <guile-devel@gnu.org>
Subject: Re: Pretty print bytevectors with its content in hex format
Date: Tue, 04 Oct 2022 18:49:34 +0800	[thread overview]
Message-ID: <86sfk3g8tr.fsf@163.com> (raw)
In-Reply-To: <87wn9kkhxr.fsf@laura>

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> Right.  The Guile printer has no option of that sort yet.  Quickly I
> would think that this should work:
>
> (use-modules (oop goops))
>
> (define-method (display (bv <bytevector>) port)
>   (format port "#vu8(~{#x~x~})" (bytevector->u8-list bv)))
>
> but I haven't tested it.

Thanks for your help!

I test your code in repl but it looks that procedure "display" is still not
a generic function. If I test `(format port ....)` independently, it
works well.

Anyway, thanks a lot :)

-- 
Retrieve my PGP public key:

  gpg --recv-keys B3EBC086AB0EBC0F45E0B4D433DB374BCEE4D9DC

Zihao

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      reply	other threads:[~2022-10-04 10:49 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-09-30  8:41 Pretty print bytevectors with its content in hex format Zhu Zihao
2022-09-30 15:20 ` Olivier Dion via Developers list for Guile, the GNU extensibility library
2022-10-04 10:49   ` Zhu Zihao [this message]

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