Re: Encoding multibyte strings

["B. T. Raven" <btraven@nihilo.net>]

On 4/8/2016 02:28, Eli Zaretskii wrote:
>> From: Eric Abrahamsen <eric@ericabrahamsen.net>
>> Date: Fri, 08 Apr 2016 15:09:55 +0800
>>
>> I'm trying to get from this:
>>
>> 陈冬梅
>>
>> to this:
>>
>> CHARSET=UTF-8;ENCODING=QUOTED-PRINTABLE:=E9=99=88=E5=86=AC=E6=A2=85
>>
>> Assuming that the original characters were in utf-8, of course. So that
>> 陈 is =E9=99=88, and so on.
>>
>> I got this string by looking at a Vcard export from the Contacts app on
>> my Android phone. I'm trying to take an Emacs buffer and turn it into a
>> *.vcf card file to import into the same app -- basically I'm trying to
>> reverse-engineer the VCard encoding format so I can create a file to
>> feed to my phone.
>>
>> I'm 99.9% sure that Emacs already comes with functions that will produce
>> my escaped coded string, but after many adventures with C-h f (during
>> which I learned quite a few unrelated tricks) I haven't found it. Can
>> someone enlighten me as to what the simplest way to do this is?
>
> Not sure what exactly are you looking for.  A wild guess is that
>
>    (encode-coding-string 'utf-8 STRING)
>
> and
>
>    (quoted-printable-encode-string STRING)
>
> will do the job, IIUC.
>

(haxe-string-to-x-string "陈冬梅")

evaluated to this:

"\\xe9\\x99\\x88\\xe5\\x86\\xac\\xe6\\xa2\\x85"

that function and a discussion of the problem are here:


http://stackoverflow.com/questions/11085222/translate-unicode-utf-8-codepoint-to-bytes

hth,

Ed