Re: [bug-gawk] gawk deal with file separator

[Peng Yu]

process.sh could be more complex than just a simple script. It could
be a bash function, a pipeline, etc. Therefore, it may not be always a
good idea to put it into awk code.

> Note that you can run "process.sh" from inside awk using a command
> pipeline. One possible approach is:
>
> echo f1.txt f2.txt | gawk '
> {
>       for (i = 1; i <= NF; i++) {
>               cmd = ("process.sh " $i)
>               # need to getline into a variable to avoid stomping on $n
>               while ((cmd | getline x) > 0) {
>                       split(x, f)
>                       # do your awk processing
>               }
>               close(cmd)
>       }
> }'
>
> Or perhaps more simply:
>
> echo f1.txt f2.txt | gawk -v "RS=[[:space:]]+" '
> {
>       cmd = ("process.sh " $0)
>       while ((cmd | getline) > 0) {
>               # do your awk processing
>       }
>       close(cmd)
> }'

-- 
Regards,
Peng