Create utf-8 buffers when exporting to vcard 4.0

[sg2002]

Just tried exporting to vcard.

The problem is when you export to a buffer, the buffer contents though they are encoded in utf-8, are not determined as such by emacs. If you try exporting my earlier vcard back, you would see that the Cyrillic letters are not shown properly in the export buffer.

[flexibeast]

i just tried:

• importing your example vCard;
• removing the VERSION property from the resulting *org-vcard-import* buffer;
• copying the value of the N property to the heading; then
• re-exporting as vCard 4.0.

It didn't work at all for me. i checked the value of buffer-file-coding-system for the *org-vcard-import* buffer; it was set to utf-8-unix. Toggling debug-on-error produces a backtrace which begins:

Debugger entered--Lisp error: (wrong-type-argument stringp nil)
  looking-at(nil)
  org-agenda-skip() [snip]
  org-scan-tags [snip]
  org-map-entries [snip]

[flexibeast]

So, having now made sure org-mode is enabled for the *org-vcard-import* buffer, i can see the output is indeed not encoded correctly; describe-char reports the erroneous output as having a preferred-charset of "eight-bit". Yet buffer-file-coding-system reports the buffer as utf-8-unix.

i'll start looking into the behaviour of the org-vcard-export-line function, which is where encoding as UTF-8 is supposed to be happening.

[flexibeast]

i've made a change such that exporting your example vCard data produces a buffer with the output correctly encoded; could you please verify that it works for you also?

[sg2002]

Yep, works now.

[flexibeast]

Thanks!