Re: python-gammu - how do I encode/decode an SMS which contains emoji?

Thanks Michal - at least I know now
that I'm not doing something silly. If I were a more experienced
programmer, I'd have a stab at fixing the Python bindings myself -
but sadly, C/C++ programming at this level is a little beyond my
reach!

On 10/02/2017 13:44, Michal Čihař wrote:

Hi

[email protected] píše v Čt 09. 02. 2017 v 00:08 +0000:

Hi,

I'm unable to successfully encode/decode an SMS containing emoji.

Using Python 3 and the Python-Gammu library, I encode a PDU for
message
text containing an emoji character 😂 (Unicode character U+1F602 -
"FACE WITH TEARS OF JOY"):

The PDU returned is
"07918188558588f811000b912121551532f40018ff02f602".

When I then decode this PDU using the Python-Gammu library, the
message
text contains an unrecognised character  (\xEF\x98\x82), rather
than
the Unicode emoji character.

*** I get the same result using Wammu's own encoder and decoder tools
at
https://wammu.eu/tools/pdu-encode/ and
https://wammu.eu/tools/pdu-decode/ . ***

I wonder whether this is something to do with the gammu library
working
strictly to the GSM specification and interpreting the UDH payload
as
UCS-2 encoded rather than as UTF-16. Nevertheless, emoji are now in
common use within SMS messages, and I need to find a way of
converting
gammu's literal decoding back to the original emoji as entered by
the
sending party.

Would anyone please be able to guide me on how to achieve this?

This can be achieved by fixing bug in python-gammu :-). See our issue
tracker:

https://github.com/gammu/python-gammu/issues/16

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