i need a more complex regexp

[Skaperen]

i need a more complex regular expression i hope to use with module re. in this expression i need to match 2 (and in 2 more variation, 3 and 4) arithmetic expressions separated by any character that is not valid in an arithmetic expression. i plan to evaluate the arithmetic expressions with the eval() function to get their values. the strings are coming from safe places, like input from the user that runs it. is there a symbol in PCRE to do this or some combination that can do it?