perl5 util for regular expression in struts validator

there seems to be a bug in the struts validator use of the perl5 util in the regular expressions. i am currently using this as my expression ^[a-zA-Z0-9\s-./*]*$ and it works. 

however, all other documentation that i can find says that any metacharacters should be delimited by a forward slash which in the above case only works for the space (\s). also, there seem to be no way of representing ampersand (&) as i have tried it with the delimiter and without but it still does not work.

any response would be greatly appreciated.. thanks.



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