Handle invalid characters when tagging

[Paul Everitt]

Presumably there are some invalid characters that can be typed in when doing a tag. Namely, anything that must be escaped for display in a URL. We follow whatever rules KARL2 has for this, so we might need to do some research. For example, does KARL2 allow unicode chars in a tag?

We need to detect in some ways when a tag has a bad char. Perhaps the safest thing to do is let the server decide. This means our protocol needs to support sending back a server-generated error message which we can then display.

Of course, we then have to decide our strategy for displaying errors. jQuery UI dialog, or just a status line somewhere?

[Balazs Ree (ree)]

Unicode tags are working now. I agree that such checks should be done in the server.

Error handling for add/del tag should be a task on its own where this has to be covered as well.

[Balazs Ree (ree)]

Invalid characters are now both checked on client and on server.

What is the list of allowed characters? Currently I allow a-zA-Z0-9.

There is no automatic conversion attempted, bad characters will yield an error.

[Balazs Ree (ree)]

a-zA-Z0-9\-\._ are allowed now.