reading and writing to commands with open?

[StefanKarpinski]

I tried this and felt that it would be a natural and intuitive interface:

open(`pbcopy`, "w") do w
  print(w, line1)
  print(w, line2)
end

Likewise, you could do this for reading from a command via a file handle:

open(`pbcopy`, "r") do r
  line1 = readline(r)
  line2 = readline(r)
end

Thoughts on this as an API? I wonder if we could fit reading and writing from a process simultaneously into something like this too.

[johnmyleswhite]

I'd be happy with this.

[StefanKarpinski]

I'm a bit concerned that this may be a pun on the meaning of open, but it's still more convenient than what we have now for doing this (readsto and writesto, while they work, are kind of low level).

[Keno]

Considering UNIX has popen this is probably not that far off.

[kmsquire]

I like it. Are there technical issues in making it bi-directional?

Kevin

On Tue, Sep 10, 2013 at 9:09 AM, Keno Fischer [email protected]:

Considering UNIX has popen this is probably not that far off.

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[JeffBezanson]

Implemented by #6948