[Dune] [#1026] parallel vtkwriter produces illegal filenames on windows

[Dune]

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User who did this - Jö Fahlke (joe) 

Attached to Project - Dune
Summary - parallel vtkwriter produces illegal filenames on windows
Task Type - Bug Report
Category - Dune Core Modules
Status - New
Assigned To - 
Operating System - Unspecified / All
Severity - Low
Priority - Normal
Reported Version - SVN (pre2.2)
Due in Version - Undecided
Due Date - Undecided
Details - Hi!

The .vtu filenames produced by the VTKWriter in parallel mode contain the character ":", which is (in general) illegal on windows.  This means that e.g. paraview on windows cannot open our .pvtu files, see <http://lists.dune-project.org/pipermail/dune/2012-January/009986.html>.

I suppose a good replacement character would be either "-" or "_", but I'm of course open for other suggestions, as long as the resulting characters are supported everywhere.

Does anybody see a problem in simply changing this character?  This may break some scripts that people use for post-processing their data.

Maybe it is a better idea to make this character a constructor-parameter of the VTKWriter.  Or give an option "portable_filenames" to the VTKWriter, that we'll eventually default to "true".  Any thoughts?


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http://www.dune-project.org/flyspray/index.php?do=details&task_id=1026

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