Re: [xml] OS/390 compatibility (EBCDIC)

[Tim Van Holder <tim vanholder anubex com>]

On 2010-05-11 23:05, Roumen Petrov wrote:
> Hi, Alon,
> Alon Bar-Lev wrote:
> > Hello,
> >
> > Trying to compile on OS/390, it should work, right?
> >
> > I am getting:
> > ---
> > $ ../../dep/bin/xmllint --version
> > ../../dep/bin/xmllint: using libxml version 20707
> >     compiled with: Iconv ISO8859X
> So far so good but what about iconv ?
> Is it from gnu libc or external (standalone) from libiconv. The second
> didn't support EBCDIC{xxx}.

I remember building libxml on OMVS (on z/OS 1.8?) quite some time ago,
and this mostly working. I do remember making some portability changes,
possibly to things like the IS_SPACE stuff Roumen mentions below.
I'm pretty sure OMVS had iconv, but maybe the encoding names it supports
do not include "ebcdic" (after all "ebcdic" is ambiguous - there are
several EBCDIC codepages).
Try "iconv -l" to get a list of valid encoding names.

Based on http://itc.virginia.edu/mss/OpenSSH.html it looks like you may
have more luck specifying "IBM-1047" as encoding name.

> > $ ../../dep/bin/xmllint sample.xml
> > sample.xml:1: parser error : encoding not supported EBCDIC
> > <?xml version="1.0" encoding="ebcdic"?>
>
> So if libiconv support EBCDIC then no idea.
>
> Another point is that libxml contain some macros similar to IS_SPACE
> that check for ASCII codes and this may break something in library. o
> idea how to find all of them. May be with command like "grep -i
> space.*32" or "grep -i space.*20" and to look near to lines found for
> other macros.
>
> > ^
> > sample.xml:1: parser error : Input is not proper UTF-8, indicate
> > encoding !
> > Bytes: 0xA7 0x94 0x93 0x40
> > <?xml version="1.0" encoding="ebcdic"?>
> > ---