From: Stephen Davies <joviangm@gmail.com>
Subject: Re: Parameterised 'Image Attributes
Date: Thu, 24 Aug 2023 12:59:37 -0700 (PDT) [thread overview]
Message-ID: <d75e72ad-0f5b-49c3-8cbf-630136a8a7a5n@googlegroups.com> (raw)
In-Reply-To: <uc5bc8$3072a$1@dont-email.me>
On Wednesday, 23 August 2023 at 17:16:12 UTC+1, Dmitry A. Kazakov wrote:
> On 2023-08-23 12:20, Stephen Davies wrote:
>
> > Actually, I think it might also be nice if Float'Trim_Image(X) returned
> > a string that only used exponential notation for very large or very
> > small values (which seems to be the default behaviour in Python).
> To use the shortest representation for the given precision unless
> specified otherwise:
>
> http://www.dmitry-kazakov.de/ada/strings_edit.htm#6
>
> Ada 'Image attributes have "typographic quality" in plain contradiction
> to the claim being for debugging purpose. That is why the plus sign is
> always represented by a space and why floating-point representation is
> always selected even for exact zero and the way the exponent part is
> formatted. The typographic idea is to have *same looking* output. Note,
> even if the output is mathematically incorrect as in the case of
> floating-point numbers. 'Image considers precision and accuracy same,
> which is *always* wrong when dealing with floating-point numbers.
> > Different names would then be needed (Tidy_Image and Tidy_Width?).
> It takes several parameters to control the behavior in a reasonable way.
> --
How about an attribute called something like User_Image
where programmers should make no assumption about the
generated strings and implementations can provide
OS-specific ways to customise things like leading
space/plus/neither, decimal separator character, digit
grouping character/spacing, exponential notation, enum
casing, etc.
next prev parent reply other threads:[~2023-08-24 19:59 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-08-18 7:18 Parameterised 'Image Attributes Rod Kay
2023-08-18 8:25 ` Luke A. Guest
2023-08-19 9:14 ` J-P. Rosen
2023-08-19 10:03 ` Dmitry A. Kazakov
2023-08-19 11:45 ` Luke A. Guest
2023-08-19 11:56 ` J-P. Rosen
2023-08-19 13:01 ` Dmitry A. Kazakov
2023-08-19 15:27 ` Jeffrey R.Carter
2023-08-20 7:53 ` G.B.
2023-08-20 9:27 ` Dmitry A. Kazakov
2023-08-21 23:11 ` Randy Brukardt
2023-08-21 23:37 ` Randy Brukardt
2023-08-22 7:38 ` Dmitry A. Kazakov
2023-08-19 16:49 ` moi
2023-08-20 7:25 ` Randy Brukardt
2023-08-20 9:43 ` Dmitry A. Kazakov
2023-08-21 23:34 ` Randy Brukardt
2023-08-22 8:13 ` Dmitry A. Kazakov
2023-08-23 10:20 ` Stephen Davies
2023-08-23 16:16 ` Dmitry A. Kazakov
2023-08-24 19:59 ` Stephen Davies [this message]
2023-08-25 7:26 ` Dmitry A. Kazakov
2023-08-25 9:04 ` Stephen Davies
2023-08-25 13:02 ` Dmitry A. Kazakov
2023-08-28 9:18 ` Stephen Davies
2023-08-28 10:58 ` Dmitry A. Kazakov
2023-08-28 15:42 ` Stephen Davies
2023-08-28 16:09 ` Dmitry A. Kazakov
2023-08-28 17:33 ` G.B.
2023-08-28 19:08 ` Dmitry A. Kazakov
2023-08-28 17:58 ` Niklas Holsti
2023-08-28 19:08 ` Dmitry A. Kazakov
2023-09-07 1:04 ` Randy Brukardt
2023-09-07 9:01 ` Dmitry A. Kazakov
2023-08-18 18:53 ` Keith Thompson
2023-09-23 10:00 ` Rod Kay
2023-09-26 5:47 ` Vadim Godunko
2023-09-26 10:15 ` Rod Kay
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