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Being notified of changes to a file

Subject: Being notified of changes to a file
From: Yann Disser <email@hidden>
Date: Sun, 20 Jul 2008 18:37:53 +0200

Hi everyone.

I am trying to execute a ruby script from within a Cocoa application. I want to use NSTask (any better ideas?).

My scripts outputs its progress by printing single lines on standard out containing percentages (e.g. "15%"). How can I update my application continuously depending on that progress? (for progress bars and other output)

Thank you a lot,
Yann
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