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Re: ASCII support in z/OS
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From:
Yaroslav Kuzmin
Date:
August 5, 2016 11:02
Subject:
Re: ASCII support in z/OS
Message ID:
1470394903.26426.83.camel@rocketsoftware.com
Now perl inside working in the IBM-1047 encoding, but we can build perl that he was working inside
in the ISO-8859 encoding.
There are two approaches using ASCII support in perl.
1
Encoding IBM-1047 in inside perl.
But add a check if the file is opened. And to determine the encoding of the file and tagging the
stream as an EBCDIC or ASCII. All files with the tag with ASCII set will automatically convert form
ISO-8859 to IBM-1047.
When working perl all created files will be tagging by the IBM-1047
plus: simply add new functionality to perl on z/OS.
is the opportunity to work with dataset
con: able to work only with the ISO-8859
2
Disable the EBCDIC support in perl and build perl that will work within the encoded ISO-8859
add a check if the file is opened. And to determine the encoding of the file and tagging the stream
as an EBCDIC or ASCII. All files with the tag with EBCDIC set will automatically convert form IBM-
1047 to ISO-8859
When working perl all created files will be tagging by the ISO-8859
plus: the opportunity to work with UTF-8 encoding
it is not necessary to support the EBCDIC branch
con: to work with dataset will need to do individual module
What are the proposals ?
--
Regards,
Yaroslav Kuzmin
Developer C/C++ ,z/OS , Linux
3 Zhukovskiy Street · Miass, Chelyabinsk region 456318 · Russia
Tel: +7.922.2.38.33.38
Email: YKuzmin@rocketsoftware.com
Web: www.rocketsoftware.com
В Вт., 02/08/2016 в 21:53 -0600, Karl Williamson пишет:
> On 07/27/2016 09:18 AM, John Goodyear wrote:
> >
> > While it is valuable to get ASCII support for PERL on z/OS for reasons
> > such as git, I think other z/OS PERL users will have similar issues that
> > Sandra has voiced. Not everyone is reading/writing to Unix files on
> > z/OS, so chtag wouldn't help. Even if chtag is beneficial, it means
> > changing scripts/procedures to accommodate the new behavior. Also, if
> > the new PERL would wants to generate ASCII output by default, there is
> > further modification to scripts ect... to tell it to generate EBCDIC
> >
> > It seems the best solution from a usability standpoint is to be able to
> > build PERL so that it works on z/OS as before, or build it so that it
> > assumes the new behavior you are targeting to support git and other
> > software with PERL dependencies.
> >
> >
> > Regards,
> >
> > John Goodyear
> > z Systems Analytics zChampion
> > WSC z Systems Applied Technologies
> > Herndon, VA
> > johngood@us.ibm.com
> I agree with John about the need to continue to support the 1047-based
> perl.
>
> I suspect that it won't be too hard to get a Perl working in ASCII mode.
> If you can figure out a way to get the hints file to work on both
> styles, that would be preferable, as a bunch of system information in it
> is applicable to the underlying operating system, and having two files
> would invite one getting updated and forgetting the other.
>
> Note that the perl Encode module can be used to translate to/from a data
> file in many many character sets/code pages to what perl is expecting.
> There are bugs with it on z/OS that I have not yet addressed, however.
>
> If I recall correctly, though, the ASCII/EBCDIC switch is not easily
> changeable per process or even per user. I thought it was an everything
> on the machine or nothing type of deal, which, if so, is problematic.
> Hopefully, I'm wrong.
> >
> >
> > Inactive hide details for Yaroslav Kuzmin ---07/27/2016 08:51:20
> > AM---The main problem, obtain new tools to z/OS. tools is verYaroslav
> > Kuzmin ---07/27/2016 08:51:20 AM---The main problem, obtain new tools to
> > z/OS. tools is very outdated on USS z/OS. This will leave the
> >
> > From: Yaroslav Kuzmin <ykuzmin@rocketsoftware.com>
> > To: "CARROS1@nationwide.com" <CARROS1@nationwide.com>,
> > "perl-mvs@perl.org" <perl-mvs@perl.org>
> > Cc: "perl5-porters@perl.org" <perl5-porters@perl.org>
> > Date: 07/27/2016 08:51 AM
> > Subject: Re: ASCII support in z/OS
> >
> > ------------------------------------------------------------------------
> >
> >
> >
> > The main problem, obtain new tools to z/OS. tools is very outdated on
> > USS z/OS.
> >
> > This will leave the encoding EBCDIC and go to the encoding ISO-8859-1 on
> > USS.
> > and is able to build newer versions of the tools with minimum work on
> > porting.
> >
> >
> > If the community perl knows about encoding EBCDIC , the community git
> > does not know about it.
> >
> > turn on the system ASCII support is much easier than working with the
> > encoding EBCDIC .
> >
> > --
> >
> > Regards,
> >
> > Yaroslav Kuzmin
> > Developer C/C++ ,z/OS , Linux
> > 3 Zhukovskiy Street · Miass, Chelyabinsk region 456318 · Russia
> > Tel: +7.922.2.38.33.38
> > Email: YKuzmin@rocketsoftware.com
> > Web: www.rocketsoftware.com
> >
> > В Ср., 27/07/2016 в 12:30 +0000, Carroll, Sandra E (Sandra) пишет:
> > >
> > > 100% of what I do, and many (if not most all) on z/OS is EBCDIC based
> > not ASCII based.
> > >
> > > We do not want or need our files ascii encoded by default if that's
> > what you're suggesting.
> > >
> > > Being able to natively read a ascii file is a plus but native encoding
> > needs to remain EBCDIC.
> > >
> > >
> > > That would be like making EBCDIC the default encoding on Linux.
> > > what we do is parsing 5-10 million line per day per system log files
> > (so over 100 million lines)
> > >
> > > that are MVS (not USS) datasets.
> > >
> > > My question is what perceived problem are you trying to fix?
> > > Is this to make porting easier or is it to fix a problem accessing
> > files on zOS?
> > >
> > >
> > > Sandra
> >
> >
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