On 5/14/2016 12:33 PM, Kris Buelens wrote:
> There are other tricks: make 1 record of both the counter and the
> data.
Problem with that is that then you actually have to process the counter
with every record. A dirtier trick that comes to mind is to put the
counter on another stream and dig it out with JUXTAPOSE when you want it:
/* untested */
'addstream both num'
'addpipe (end /) *:' , /* read primary input */
'| in: chop 0' , /* send record below */
'| specs number 1' , /* build record number */
'| num: juxtapose , /* add on input below */
'| *.in.num:' , /* short to alt input */
'/ *.out.num:' , /* read alt output */
'| num:' , /* add to number above */
'/ in:' , /* input above */
'| *.in:' , /* short to primary input */
...
'callpipe (end /) literal | *.out.num: / *.in.num: | var where'
Note that the number is reliable only if you've done a PEEKTO to read
but not release the input record. Once you release it, you don't know
if the next record number's been written or not.
¬R
