[Octave-bug-tracker] [bug #59203] [octave forge] (io) Problem with xlsread importing accent marks

[Markus Mützel]

Follow-up Comment #11, bug #59203 (project octave):

Please, remove "unicode2utf8" and "utf82unicode". I wrote those functions when
I didn't understand how encoding works.
They break the encoding when invoked for the OCT interface and they are
de-activated for the COM interface.

The attached patch does that change for "xls2oct.m" and implements the correct
conversion for the COM interface (by default now).

The COM interface can't read characters above Unicode code point 255 (see the
attached example that correctly reads with OCT but not with COM). That might
be an issue with the windows package. The characters are already lost in line
122 in "__COM_spsh2oct__.m".
I added a FIXME note in "xls2oct.m" that the conversion might need revisiting
when/if something should change there.

I've only tested the OCT and COM interfaces.

(file #49902, file #49903)
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Additional Item Attachment:

File name: bug59203_xlsread_unicode.patch Size:4 KB
   
<https://file.savannah.gnu.org/file/bug59203_xlsread_unicode.patch?file_id=49902>

File name: Unicode.xlsx                   Size:9 KB
    <https://file.savannah.gnu.org/file/Unicode.xlsx?file_id=49903>



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