By escape character do you mean similar to \n, \r, or do you mean a unicode character like \u0763.
If you mean like \n, I don't think so and can't think of a reason for it. If you mean like a unicode character, then yes and you should be able to search for a unicode list.
You might also mean for a regex, and there is an 'escape character' for space in regex. I think it's \s, but don't quote me on that you should be able to do a google search and find that in a minute or two.
Maybe some more details as to what you're looking for would help.
The soul is dyed the color of its thoughts. Think only on those things that are in line with your principles and can bear the light of day. The content of your character is your choice. Day by day, what you do is who you become. Your integrity is your destiny - it is the light that guides your way. - Heraclitus