I think this is a well known problem. I have it myself. There is a function that makes the names "filesafe" but I think no one found a better general solution. File names allowed depend on the systems you work on. I think the common level for all is A-Z,a-z,0-9 and - , _. Personally I only use lower case a-z, 0-9 and _ , as lower and upper case are handled differently from system to system.

You have the same with the backend Media Manager.
Let's hope someone can change it to at least allow Western European characters. There are also Eastern European, Cyrillic and the asian characters that make life harder. ;).

For reference
http://www.tinymce.com/wiki.php/MCImageManager:filesystem.clean_names

On 2 November 2015 at 17:46, Ove Eriksson notifications@github.com wrote:

I think this is a well known problem. I have it myself. There is a
function that makes the names "filesafe" but I think no one found a better
general solution. File names allowed depend on the systems you work on. I
think the common level for all is A-Z,a-z,0-9 and - , _. Personally I only
use lower case a-z, 0-9 and _ , as lower and upper case are handled
differently from system to system.

You have the same with the backend Media Manager.
Let's hope someone can change it to at least allow Western European
characters. There are also Eastern European, Cyrillic and the asian
characters that make life harder. ;).

—
Reply to this email directly or view it on GitHub
#8241 (comment).

Brian Teeman
Co-founder Joomla! and OpenSourceMatters Inc.
http://brian.teeman.net/

Great! They have given it a thought. It would be nice to know what " things like åäö to aao" means more than handling the 3 swedish Umlauts.

If the editor is changed, the Media Manager has to handle it the same way, or there will be a mess with the filenames.

I'm going to close this at this time as a known issue