> -----Original Message-----
> From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf
> Of Paul Gilmartin
> Sent: Friday, April 13, 2012 12:51 PM
> To: [email protected]
> Subject: Re: Modernizing the BCP code ?
> <Snipped>
> (But how does PL/S deal with it? Perhaps the DSECT conversion utility
> should employ the PL/S rather than the HLASM part of DSECT macros.)
The fly in that ointment would be PL/S constructs like this one in the DCBD
macro:
%DCBD: MACRO KEYS(DATASET_ORG,DEVICE_TYPE,BASED_VALUE);
ANS('?' || MACLABEL || ' DCBDP ' || MACKEYS || ';') SKIP;
%END DCBD;
Or this one in DCBE:
DCBE: MACRO KEYS(END_OF_DATA_NAME,GET_SIZE,
BLOCK_TOKEN_SIZE,
EA_DSCB,
CAPACITY_MODE,
NCP_MULTIPLIER,ACCUM_MULTIPLIER,
VERIFY_STRIPES,READ_PAST_EOD,
BLOCK_SIZE,BUFFER_RMODE,SYNAD_NAME,
LOC,
SYNC);
ANS('?' || MACLABEL || ' DCBEP ' || MACKEYS || ';') SKIP
COL(5);
%END DCBE;
What is any sane conversion program supposed to make out of that? I would
think that the DSECT conversion program would have to use the PL/S preprocessor
code under the covers to translate that into something that could be used to
convert to C. Plus have the PL/S unique macros like "DCBDP" and "DCBEP" in
those two examples (yeah, fat chance of that...).
At one point I actually thought of trying to use the PL/S parts to translate
DSECT macros to C as an interesting side project but gave up when I saw that
stuff.
I have found that using the EDCDSECT options 'NOLC,EQU(DEF,BIT,BITL)' produces
reasonable results that don't need too much manual tweaking to be useful. The
results are consistent enough that you can write pre- and post-processors to
automate some of the most common tweaks needed (like converting "CHAR[8]" to
"void * __ptr64" where appropriate or converting generated struct's to typedef
struct's).
Peter
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