PSPP-BUG: [bug #46901] Select cases accepts nonsense filter

[anonymous]

URL:
  <http://savannah.gnu.org/bugs/?46901>

                 Summary: Select cases accepts nonsense filter
                 Project: PSPP
            Submitted by: None
            Submitted on: Thu 14 Jan 2016 06:37:59 PM UTC
                Category: Graphical User Interface
                Severity: 5 - Average
                  Status: None
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any
                 Release: None
                  Effort: 0.00

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Details:

Using the GUI to select cases uses FILTER BY, which required that a 0/1 filter
variable has been created. 

I don't see an easy way to create this filter variable in the GUI.

Novice users (who are more likely to use PSPPIRE) can use variables which
don't conform to this requirement and it seems to them as if the selection of
cases did not occur or occurred incorrectly.

Even worse, users can enter syntax in the "Use filter variable" field that
creates a syntax error.  For example, after pulling variable X into this
field, I added " > 9" to the field, which generated "FILTER BY X > 9." which
is invalid syntax and generates an error (and the error is cryptic, like so
many are, advising the users that "Syntax error at '>': expecting end of
command.




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