GNU bug report logs - #57090
'guix style' pretty-printer always renders integers as base10

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Message #23 received at 57090 <at> debbugs.gnu.org (full text, mbox):

From: Ludovic Courtès <ludo <at> gnu.org>
To: "(" <paren <at> disroot.org>
Cc: 57090 <at> debbugs.gnu.org, Christopher Rodriguez <yewscion <at> gmail.com>,
 Maxime Devos <maximedevos <at> telenet.be>
Subject: Re: bug#57090: [BUG] Default Notation for chmod in guix style?
Date: Tue, 09 Aug 2022 23:12:20 +0200

Hi,

"(" <paren <at> disroot.org> skribis:

> On Tue Aug 9, 2022 at 9:59 PM BST, Maxime Devos wrote:
>> 'chmod' is not mentioned anywhere in (guix scripts style), so I'd think 
>> it's just an oversight. The authority on the matter would be Ludovic 
>> Courtès <ludo <at> gnu.org>
>
> Is it possible that (guix read-print) stores octal numbers directly as
> Scheme numbers, with no way to distinguish them from decimal numbers,
> which means when they are printed they are just treated as base10? I
> poked around a bit in the module but couldn't find the code for number
> reading.

Indeed, the reader is basically a wrapper around ‘read’.  It preserves
comments and vertical space, but it doesn’t attempt to preserve the
style of numbers (base, etc.), strings (whether \n & co. are escaped or
literal), and so on.  I think that’d be a bit too much honestly.

Now, we could tweak the pretty printer so that it recognizes patterns
where numbers or strings should be printed in a certain way.

Help welcome! :-)

Ludo’.

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