一个字符串上有数百个RegEx

I am using Java/Groovy to find matches(and extract them) on a string through RegEx. What is the best way of finding matches of 200 or more regex on a string of, lets say, 5000 characters in terms of performance. In a nutshell, is it possible to avoid scanning the string for each RegEx?I am using Java/Groovy to find matches(and extr