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[bug-gv] [bug #23199] No error message for errors in opened file

From: Sebastian Leske
Subject: [bug-gv] [bug #23199] No error message for errors in opened file
Date: Wed, 07 May 2008 22:29:55 +0000
User-agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9b4) Gecko/2008030318 Firefox/3.0b4


                 Summary: No error message for errors in opened file
                 Project: GNU gv
            Submitted by: sleske
            Submitted on: Wednesday 05/07/2008 at 22:29
                Category: Graphical User interface
                Severity: 3 - Normal
              Item Group: None
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any
                 Release: None



If I open a file with gv (as a command line argument, or opened via File
menu), there is no error message if gs cannot render the file. Instead, gv
simply shows an empty page.

To test:

gv /bin/ls


Some sort of error message that /bin/ls is not a valid Postscript file.

Actual behavior:

gv shows an empty page.

This can be rather confusing, as an invalid PS file is not the same as an
empty one.


Old versions of gv used to display an error message in this case.
This was apparently changed by the patch for  #19632, "quiet and .gv watch
settings are not respected".

This patch seems to suppress _all_ popup messages if option -quiet is set,
even error messages from gs. This seems incorrect to me, as the manpage only
says that -quiet causes gs to be called with -dQUIET. It says nothing about
suppressing all error messages.

If gv is called with -noquiet, opening an invalid file causes an error popup,
as expected. However, -quiet seems to be the default for gv, hence the
observed behaviour.


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