I am working with GnuCOBOL(Using Windows) and I need to write a compiler with it.
What i am asking is - given directory path, can i modify the files inside of it using COBOL? It is important to say that you can't know the files names. You know only the path of the directory which contains them.
Here is some code for POSIX systems
identification division.
program-id. SAMPLE.
environment division.
configuration section.
repository.
function all intrinsic.
data data division.
working-storage section.
01 dir usage pointer.
01 dent usage pointer.
01 dirent based.
05 filler pic x(19). *> HERE BE DRAGONS
05 entname pic x(256).
05 filler pic x(237).
01 sayname pic x(256).
*> ************************************************
code procedure division.
call "opendir" using
by content z"."
returning dir
on exception
display "error: no opendir found" upon syserr end-display
bail stop run returning 1
end-call
if dir not equal null then
call "readdir" using
by value dir
returning dent
end-call
perform until dent equal null
*> set address of the based dirent and pull out the name
set address of dirent to dent
initialize sayname
string entname delimited by x"00" into sayname end-string
display trim(sayname TRAILING) end-display
call "readdir" using
by value dir
returning dent
end-call
end-perform
call "closedir" using by value dir end-call
else
call "perror" using by content z"" returning omitted end-call
bail stop run returning 1
end-if
done goback.
end program SAMPLE.
Originally posted to SourceForge, licensed under the GPL. Due to the assumption on sizing of dirent you'd want to duff the code over a little bit before unleashing it on the unwary.