No. Various parts of the core engine assume a comma separator, and for good reason: tags can be short phrases and not single words. Eg Interests: stamp collecting, mountain biking, bird watching

The idea of restricting tags to single words is a brain dead limitation in my view, and I'm glad that Elgg fixed it.

Kevin, I use Chinese, and there is no blank between a phrase in Chinese, and also the Chinese commas is different from Latin when input. that's annoying.

Hope someone can give a better solution.

thanks.

Although I do not want to get into an argument about your native language, according to Wikipedia, there is an element of Chinese punctuation called an "enumeration comma" that is used for demarcating lists:

http://en.wikipedia.org/wiki/Chinese_punctuation

So this seems consistent with Elgg practice.

One thing that you might consider doing is posting an enhancement request on the Elgg issue tracker to allow site admins to configure a site-specific tag list separator. Thus in your case you could set this to a blank or an "enumeration comma".

The bug tracker used to be at:

http://trac.elgg.org

but apparently has not been set up again after the server crash the other day. I suggest that you try it in a day or two.

Thanks kevin.