GNU bug report logs - #26260
~f SRFI-19 format specifier mishandles one-digit seconds value

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Andy Wingo <wingo <at> igalia.com>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#26260: closed (~f SRFI-19 format specifier mishandles
 one-digit seconds value)
Date: Wed, 19 Apr 2017 13:48:01 +0000

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Your message dated Wed, 19 Apr 2017 15:46:54 +0200
with message-id <877f2go6gh.fsf <at> igalia.com>
and subject line Re: bug#26260: ~f SRFI-19 format specifier mishandles one-digit seconds value
has caused the debbugs.gnu.org bug report #26260,
regarding ~f SRFI-19 format specifier mishandles one-digit seconds value
to be marked as done.

(If you believe you have received this mail in error, please contact
help-debbugs <at> gnu.org.)


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From: Zefram <zefram <at> fysh.org>
To: bug-guile <at> gnu.org
Subject: ~f SRFI-19 format specifier mishandles one-digit seconds value
Date: Sun, 26 Mar 2017 03:09:29 +0100

The ~f format specifier for SRFI-19's date->string is documented as:

#    ~f     seconds and fractional seconds, with locale
#           decimal point, eg. `5.2'

Let's test that example:

scheme@(guile-user)> (use-modules (srfi srfi-19))
scheme@(guile-user)> (date->string (make-date 200000000 5 34 12 26 3 2017 0) "~f")
$1 = "05.2"

That's not the documented format: the doc and the SRFI itself show "5.2"
with no leading padding, but actual behaviour is to zero pad.  There is
much that is ambiguous in the SRFI's specification of ~f, but with that
example it does at least seem clear that there should be no padding there.

-zefram

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From: Andy Wingo <wingo <at> igalia.com>
To: 26260-done <at> debbugs.gnu.org
Subject: Re: bug#26260: ~f SRFI-19 format specifier mishandles one-digit
 seconds value
Date: Wed, 19 Apr 2017 15:46:54 +0200

thanks

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