Getting started with tcl

Thomas Heller thomas.heller@ion-tof.com
Thu Aug 3 09:22:00 GMT 2000


I'm trying to understand how SN starts 'make'.
Since I'm an absolute beginner to tcl, can
someone please explain the following line
(from share/gui/multimake.tcl, method ExecMake):

  set ret [catch {@@set make_fd [@@open "| $make_cmd" r]} msg]

I can decipher most of it, but what do all the @'s mean?
Is this standard tcl? I did not find something like
this in the Ousterhout book...

Thomas Heller



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