[erlang-questions] Binary to string conversion

[Abhishek Ranjan]

I tried

bin_is_7bit/1
bom_to_encoding/1
encoding_to_bom/1

and didn't try the ones starting with characters keyword as I had this doubt regarding them
that I have a binary not a character at hand already

But thank you for the reply

> On May 10, 2017 at 5:49 PM Attila Rajmund Nohl <attila.r.nohl@REDACTED> wrote:
>
>
> Hello!
>
> Have you actually tried any of them? I presume this is what you need:
>
> 5> B= <<97,0,109,0,97,0,110,0>>.
> <<97,0,109,0,97,0,110,0>>
> 9> unicode:characters_to_list(B, {utf16, little}).
> "aman"
>
>
> 2017-05-10 13:36 GMT+02:00 Abhishek Ranjan <abhishek@REDACTED>:
> > I had a look at the unicode library of erlang and it contained following
> > BIFs
> >
> > bin_is_7bit/1
> > bom_to_encoding/1
> > characters_to_binary/1
> > characters_to_binary/2
> > characters_to_binary/3
> > characters_to_binary_int/2
> > characters_to_list/1
> > characters_to_list/2
> > characters_to_list_int/2
> > encoding_to_bom/1
> > module_info/0
> > module_info/1
> >
> > But what I have is already a binary and I need it to convert into string,or
> > given the erlang's logic of storing string as a list of characters I need
> > binary to list converter but there isn't any as it looks like to me.
> >
> > Please share suggestions.
> >
> >
> >> On May 10, 2017 at 4:37 PM Hugo Mills <hugo@REDACTED> wrote:
> >>
> >>
> >> On Wed, May 10, 2017 at 04:11:18PM +0530, Abhishek Ranjan wrote:
> >> > I have set up a chat application using ejabberd(built using erlang) and
> >> > Pidgin.
> >> >
> >> > I have witnessed a proceeding where when I print out a message sent by
> >> > the client to server on ejabberd it comes out as string
> >> >
> >> > For example,if I send a message as
> >> >
> >> > aman
> >> >
> >> > from the pidgin and print it inside the module containing ejabberd hook
> >> > as CustomMod.erl using
> >> >
> >> > >
> >> > > Bin=xmpp:get_text(Packet#message.body),
> >> > > Name=binary_to_list(Bin),
> >> > >
> >> > > ?INFO_MSG("The value of Name is ~p~n",[Name]),
> >> > >
> >> >
> >> > the output comes as "aman"
> >> >
> >> > but I have a simple erlang module also for login as login.erl and it
> >> > does not implement any ejabberd behavior, but is called from within
> >> > CustomMod.erl when I print this message out in this module it comes enclosed
> >> > within these << >> but are separated by 0's like
> >> >
> >> > aman becomes here as <<97,0,109,0,97,0,110,0>>
> >>
> >> That looks like little-endian UTF-16 to me. You probably need to do
> >> some Unicode conversion on your binary.
> >>
> >> Hugo.
> >>
> >> > which on doing binary_to_list(Variable) inside my login.erl I get->
> >> > [97,0,109,0,97,0,110,0]
> >> >
> >> > (where Variable is the value enclosed within <<>>)
> >> >
> >> > Can anyone tell me why is it happening and what is the way to get the
> >> > value aman in login.erl also?
> >> >
> >> >
> >> > Regards,
> >> >
> >> > Abhishek
> >>
> >> > _______________________________________________
> >> > erlang-questions mailing list
> >> > erlang-questions@REDACTED
> >> > http://erlang.org/mailman/listinfo/erlang-questions
> >>
> >>
> >> --
> >> Hugo Mills | There are two hard problems in computer science:
> >> hugo@REDACTED carfax.org.uk | Cache invalidation, naming things, and off-by-one
> >> http://carfax.org.uk/ | errors.
> >> PGP: E2AB1DE4 |
> >
> > _______________________________________________
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> > erlang-questions@REDACTED
> > http://erlang.org/mailman/listinfo/erlang-questions
> >
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