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Re: replacing characters and whacky trans-buffer conversion
From: |
ken |
Subject: |
Re: replacing characters and whacky trans-buffer conversion |
Date: |
Wed, 07 Mar 2007 16:03:52 -0500 |
User-agent: |
Thunderbird 2.0pre (X11/20070214) |
Sorry... in the below it should say 5542 instead of 5442.
On 03/07/2007 03:48 PM somebody named ken wrote:
> Okay, try this:
>
> Create two buffers in one emacs frame.
>
> In one of them enter C-q 5442 RETURN. You should get a Greek character
> which looks much like a German double-s.
>
> Using only emacs, put this character into the kill buffer and yank it
> into the second buffer.
>
> When I do this, I get a different character in the second buffer. Its
> coding (ascertained via C-x=) is also different.
>
> Go back to the first buffer and do another yank. What character do you
> get. I get the original character, the one inserted with C-q 5442 RETURN.
>
>
>
> On 03/06/2007 10:15 AM somebody named ken wrote:
>> An email comes in with this (emdash) character in it: –
>>
>> It looks like an em-dash until the text containing it is pasted into an
>> emacs buffer; then it appears as a series of "garbage characters".
>> (Copy and paste the emdash into an emacs buffer yourself, and perhaps
>> you'll see what I mean.)
>>
>> To me and, possibly to you, this emdash appears in emacs as nine (9)
>> "garbage" characters.
>>
>> Because I want to programmatically replace these 9 garbage characters
>> into something latin1-friendly, I copy-and-paste these nine characters
>> into an *.el file containing a line like this:
>>
>> (replace-string "–" "--" nil (point-min) (point-max))
>>
>> The sought string (i.e., the first argument above) isn't found, however
>> because, for some whacky reason, the emdash pasted into the *.el file is
>> different-- by one character-- from exactly the same emdash pasted into
>> the other emacs buffer (the one I'm saving the email in).
>>
>> In the emacs buffer containing the email, the fourth garbage character
>> (as shown by C-u C-x=) is:
>>
>> character: β (05542, 2914, 0xb62)
>> charset: greek-iso8859-7
>> (Right-Hand Part of Latin/Greek Alphabet (ISO/IEC 8859-7):
>> ISO-IR-126)
>> code point: 98
>> syntax: word
>> category: g:Greek
>> buffer code: 0x86 0xE2
>> file code: not encodable by coding system undecided-unix
>> font: -ETL-Fixed-Medium-R-Normal--16-160-72-72-C-80-ISO8859-7
>>
>> In the *.el buffer, the fourth garbage character (which should be
>> exactly the same character) is:
>>
>> character: â (0342, 226, 0xe2)
>> charset: eight-bit-graphic (8-bit graphic char (0xA0..0xFF))
>> code point: 226
>> syntax: whitespace
>> category:
>> buffer code: 0xE2
>> file code: 0xE2 (encoded by coding system raw-text-unix)
>> font: -ETL-Fixed-Medium-R-Normal--16-160-72-72-C-80-ISO8859-1
>>
>> I tried entering "C-q 5542 RETURN" into the *.el file, but emacs
>> immediately makes it into the second (â, or 0342) character. Doing the
>> same into the other emacs buffer (containing my copy of the email)
>> *does* enter the good (β, or 05542) character.
>>
>> All I really want is for the above replace-string function to work as
>> expected. But emacs consistently converts that fourth character in the
>> emdash string into a different character, subsequently causing the
>> search to fail. So how do I get the correct "garbage" characters into
>> the first argument of the replace-string function-- i.e., into the *.el
>> file?
>>
>>
>> tnx,
>> ken
>>
>>
>
>
--
"Genius might be described as a supreme capacity for getting its
possessors into trouble of all kinds."
-- Samuel Butler
- replacing characters and whacky trans-buffer conversion, ken, 2007/03/06
- Re: replacing characters and whacky trans-buffer conversion, ken, 2007/03/07
- Re: replacing characters and whacky trans-buffer conversion,
ken <=
- Re: replacing characters and whacky trans-buffer conversion, Peter Dyballa, 2007/03/07
- Re: replacing characters and whacky trans-buffer conversion, ken, 2007/03/07
- Message not available
- Re: replacing characters and whacky trans-buffer conversion, Stefan Monnier, 2007/03/08
- Re: replacing characters and whacky trans-buffer conversion, ken, 2007/03/08
- Re: replacing characters and whacky trans-buffer conversion, ken, 2007/03/08
- Message not available
- Re: replacing characters and whacky trans-buffer conversion, Stefan Monnier, 2007/03/08
- Re: replacing characters and whacky trans-buffer conversion, ken, 2007/03/09
- Re: replacing characters and whacky trans-buffer conversion, Peter Dyballa, 2007/03/09
- Re: replacing characters and whacky trans-buffer conversion, ken, 2007/03/09
- Re: replacing characters and whacky trans-buffer conversion, Peter Dyballa, 2007/03/09