Hi
Last weeks discussion on sorting a REXX stem inspired me to write a program to
do it.
example call to sort ascending
"ISPEXEC LIBDEF ISPLLIB DATASET ID ('my_loadlib') STACK"
"ALLOC FI(SORTPRT) DUMMY"
r_c = SORTSTEM(my_stem_name,'A')
"FREE FILE(SORTPRT)"
"ISPEXEC LIBDEF ISPLLIB "
SORTSTEM gets the variable count from my_stem_name.0 and then looks at every
variable in the stem to get the maximum length.
Then it getmains some storage big enough for the maximum record plus 4 bytes
for the length of the variable
It then calls the system SORT passing E15 and E35 exits
SORT FIELDS=(1,max_len,BI,A),FILSZ=stem_count
OPTION MSGDDN=SORTPRT
RECORD TYPE=F,LENGTH=(max_len+4)
On each call to the E15 exit the next stem variable is read, padded with spaces
and the length put on the end
On each call to the E35 exit the variable is put back into the stem, starting
at 1, using the original length
It will be on File#953 of the CBT Tape soon, but it anyone wants a preview then
the code is in IEBUPDTE format here
http://www.spurtle.biz/STEMASM.txt
and supporting macros here
http://www.spurtle.biz/STEMMAC.txt
You will need to assemble the six modules then link
INCLUDE SYSLIB(STEMSORT)
ENTRY STEMSORT
Regards
John
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