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PSPP-BUG: [bug #59120] Syntax lets psppire hang

From: John Darrington
Subject: PSPP-BUG: [bug #59120] Syntax lets psppire hang
Date: Tue, 15 Dec 2020 04:47:18 -0500 (EST)
User-agent: Mozilla/5.0 (Windows NT 10.0; rv:78.0) Gecko/20100101 Firefox/78.0

Follow-up Comment #1, bug #59120 (project pspp):

 This issue can be classified as either "not a bug" or as "duplicate of bug

At the end of the day, the syntax you pasted is erroneous (and it displays an
error message).   However a decision was made in pspp's design many years ago,
NOT to abort syntax processing at the first error.  Hence it tries to proceed;
and in this case finds an infinite loop.

This infinite loop hangs both the GUI and and the TUI.  Such behaviour is
perhaps not the most user intuitive.  But changing it would require some
careful considerations of the possible effects on other scenarios.


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