Re: RPGprogram: how to use fopen with various CCSID's

[Scott Klement <rpg400-l@xxxxxxxxxxxxxxxx>]

Use o_ccsid instead of ccsid.  Also, consider whether you really want to 
hard-code 278, or if you'd be better off using o_ccsid=0 (0 means 
current job's ccsid).

The ccsid= keyword is legacy cruft -- don't use it.  It was for old 
releases before the IFS supported CCSIDs, so what it does is convert the 
CCSID to a corresponding code page, and then uses that... this won't 
work with anything that requires multiple code pages (such as Unicode.)

https://www.ibm.com/docs/api/v1/content/ssw_ibm_i_74/rtref/fopen.htm

On 1/3/2022 12:15 PM, stefan@xxxxxxxxxx wrote:
> I need to read thru a bunch of IFS-files in an rpg-program to locate some
> items.
>
> Using fopen( %trimr( file ): 'r, ccsid=278' ); seems to work pretty well
> until I encounter a file with CCSID=13488.
>
> That one gives me an errno=3490=Conversion error.
>
> If I modify the fopen to fopen( %trimr( file ): 'rb' ); binary mode makes me
> get thru the open but then I have to translate all the data by myself.
>
> What is the proper way of dealing with this?
>
>
> I am expecting to find files in various ccsid's like 819, 37, 819, 278,
> 13488, 1252 etc.
>