Re: [open-cobol-list] Declaratives in OC

[Bill Klein]

I don't know if this is TOO general or if it would be helpful, but the IBM
Programmer Guide has info at:
   http://publibz.boulder.ibm.com/cgi-bin/bookmgr_OS390/BOOKS/igy3pg32/1.8.4


and

  http://publibz.boulder.ibm.com/cgi-bin/bookmgr_OS390/BOOKS/igy3lr31/8.1.22


"SELECT OPTIONAL (and file status "05" and how/when non-existent files are
created is a little more complex.  I couldn't' (quickly) find an
"introduction" to this - but someone else may.

> -----Original Message-----
> From: address@hidden 
> [mailto:address@hidden On 
> Behalf Of John Culleton
> Sent: Tuesday, June 03, 2008 7:40 AM
> To: address@hidden
> Subject: Re: [open-cobol-list] Declaratives in OC
> 
> On Saturday 31 May 2008 01:53:02 pm vince coen wrote:
> > Hi;
> >
> > On Saturday 31 May 2008, John Culleton wrote:
> > > I wrote a little program that opens a line sequential file. reads
> > > through it looking for lines beginning with "\input" , then picks
> > > up a file name from the same record.  Then it opens another file
> > > dynamically using the file name discovered. All that works.
> > >
> > > The problem comes when the file to be opened doesn't exist.
> > > HTCOBOL fails silently but OC gives an error message. What I want
> > > to do is trap the error so that processing can continue. The
> > > classic way to do that is with a DECLARATIVES section.
> > >
> > > Do DECLARATIVES work in OC?  With HTCOBOL?
> > >
> > > I can post the complete program but it runs 84 lines.
> >
> > Now this could be complicated:) Why not just trap for any error
> > (non zero) after opening and also consider select optional?
> >
> > Vince.
> 
> I don't have my old manuals and the books I have do not cover these 
> areas (FILE STATUS, SELECT OPTIONAL  etc. ). Is there a decent book 
> still in print?  There are some examples in the htcobol test suite 
> but I need a little more guidance that.
> 
> -- 
> John Culleton
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> http://www.gropenassoc.com/TopLevelPages/reference%20desk.htm
> 
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