From: Pietro Gagliardi <pietro10@mac.com>
To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net>
Subject: Re: [9fans] xd bug
Date: Mon, 14 Jul 2008 13:02:26 -0400 [thread overview]
Message-ID: <66A41360-593C-4B12-B33E-04A9C7336CF1@mac.com> (raw)
In-Reply-To: <20080714164232.2A0A51E8C6E@holo.morphisms.net>
If you look more closely at the alignment of the characters to the hex
values you will see that xd thinks Q has character code 0x525 and R
has character code 3. It should look more like
% xd -c -x bad
0000000 e0Q R S \n
0 e0515253 0a000000
0000005
On Jul 14, 2008, at 12:43 PM, Russ Cox wrote:
>> Hello. Regarding my previous question, the file /n/sources/contrib/
>> pietro/xd.out shows a bug in xd regarding characters that can't be
>> printed with the %c format. There should be no space between a non-
>> printing and a printing character; but the two spaces screw the rest
>> of the line up. This shows a deficiency in the table-based
>> implementation. I'll do my best to fix it in a clean way. Thanks.
>
> It would help a lot if (1) you cut and pasted things into email
> instead of making us go look on sources for four-line files
> and (2) you told us exactly what you thought was wrong.
>
> Your xd.out says:
>
> % xd -c -x bad
> 0000000 e0 Q R S \n
> 0 e0515253 0a000000
> 0000005
>
> which looks fine to me. If I create the same file and add some
> more text just to fill things out, I get:
>
> % xd -c -b -x a | sed 6q
> 0000000 e0 Q R S \n L o r e m i p s u m
> 0 e0 51 52 53 0a 4c 6f 72 65 6d 20 69 70 73 75 6d
> 0 e0515253 0a4c6f72 656d2069 7073756d
> 0000010 d o l o r s i t a m e t ,
> 10 20 64 6f 6c 6f 72 20 73 69 74 20 61 6d 65 74 2c
> 10 20646f6c 6f722073 69742061 6d65742c
>
> which still looks just fine. In particular I don't see any
> alignment difference between the first line and the second line.
>
> Russ
>
>
next prev parent reply other threads:[~2008-07-14 17:02 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-07-10 21:26 Pietro Gagliardi
2008-07-14 16:43 ` Russ Cox
2008-07-14 17:02 ` Pietro Gagliardi [this message]
2008-07-14 17:13 ` erik quanstrom
2008-07-14 21:10 ` Pietro Gagliardi
2008-07-14 17:22 ` Russ Cox
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