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Re: desktop-read usage and syntax ::error, strange character :: half-SOL


From: ken
Subject: Re: desktop-read usage and syntax ::error, strange character :: half-SOLVED!!!
Date: Thu, 20 Jul 2017 18:36:57 -0400
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.2.0

On 07/19/2017 02:46 AM, Yuri Khan wrote:
On Wed, Jul 19, 2017 at 4:10 AM, ken <gebser@mousecar.com> wrote:

Most of the info in .emacs.desktop is inscrutable... I don't know what the
bejesus it is.  I even saw a bunch of lines like this:

(desktop-create-buffer <81><CE>
(81x = 129d ; CEx = 206d !!!)

and didn't think it terribly odd.  But then I compared that file to one of
the backups I have of previous versions of the same file and, instead of the
"<81><CE>", there was "206"... in every case.
The docstring for ‘desktop-create-buffer’ calls its first argument
FILE-VERSION. It is reasonable to expect that it’s an integer such as
206.

However, integers are also used as character codes, and 206 is the
character code of Î (U+00CE Latin capital letter I with circumflex).
In the UTF-8 encoding, this character is represented by two bytes 0x81
0xCE.

Agreed. That's what I was suggesting above when showing the hex and decimal equivalences.

It is as if under some circumstances the code that saves the desktop
file writes the version as a character code instead of a decimal
integer.

Agreed again... well, I'd use different terminology, but I know what you mean. I've noticed too that emacs has had some problems regarding the representation of characters in text. I've been having a longterm issue with the German characters: ä ö ü, their capitalized equivalents and ß. I can type them into an emacs buffer (and obviously into an email composed in Tbird). But if I copy text with any of these characters from somewhere else and paste it into emacs, I get "garbage" characters in their stead; not so if I paste the same text into any other application on my system, e.g., Tbird, vi, bash shell, even LibreOffice's Calc. So there's something shakey going on with emacs there. I can't say this problem and the one original to this email thread come out of the same code, but they do bear some resemblance.



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