RE: UTF-8 conversion

["Carmen Nuland" <cnuland@xxxxxxxxxxxxxx>]

Thanks Larry!  Makes perfect sense - I knew I was close, but I just couldn't
see the answer.  I fixed my program and it works!
Carmen

-----Original Message-----
date: Tue, 27 Jul 2004 09:35:52 +0100
from: "Larry Ducie" <larry_ducie@xxxxxxxxxxx>
subject: RE: UTF-8 conversion

Carmen,

>>/free                                                     myfile = 
>>'/attachment/UTF-8.txt';                       openflags = O_RDONLY + 
>>O_TEXTDATA;                      mode = S_IRUSR + S_IRGRP + S_IROTH;

>>               CCSID_UTF8 = 1208;

>>   fd = open( myfile                                                : 
>>openflags                                             : mode

>>                                    : CCSID_UTF8        );

Be sure that you are specifying CCSID with the flag CCSID_UTF8, and not
codepage. This is done in the openflags - O_CODEPAGE has the value 8388608,
and O_CCSID has the value 32. Including O_CCSID in the openflags tells the
API that you are specifying the fourth parameter as a CCSID value and not a
CODEPAGE value. When you create a file this CCSID value is assigned to the
file (not necessarily the data) This is known as the File CCSID. For any
subsequent open of the file, the fouth parameter specifies the CCSID that
you want to convert to/from. This is known as the open CCSID - the special
value of 0 (zero) will default the open CCSID to the job CCSID. This is what
you want to set for reading your file. The data will then be converted from
the File CCSID to the open CCSID. That is, from CCSID 1208 to your job
CCSID.

To create the file as UTF-8 you should have something like:

D O_CCSID         C                   Const(32)

/free
myfile = '/attachment/UTF-8.txt';
openflags = O_CREATE + O_WRTONLY + O_TRUNCATE + O_CCSID; mode = S_IRWXU +
S_READWRITE;
CCSID_UTF8 = 1208;

  fd = open( myfile
           : openflags
           : mode
           : CCSID_UTF8);

To open a file created as UTF-8 you need to specify something like:
/free
  myfile = '/attachment/UTF-8.txt';
  openflags = O_RDONLY + O_TEXTDATA + O_CCSID;
  mode = S_IRUSR + S_IRGRP + S_IROTH;

  fd = open( myfile
           : openflags
           : mode
           :0);

As you can see, you have specified the "Open" CCSID as the job CCSID. This
will ensure that any read/writes will convert the data to/from your job
CCSID and File CCSID respectively.

I hope this makes sense.

Cheers

Larry Ducie