问题
I have a regular expression here which works perfectly in Regex101 (see demo). anubhava provided this solution in this question.
/^(?=.*\b[1-9]\b)(?=.*\b1[0-7]\b)[0-9]+(?:,[0-9]+)+$/gm
However, when I try to use it in Google Analytics, I get this warning - "Invalid regular expression. Your data request includes an invalid regular expression."
Do you know how I can get the same results, but satisfy Google Analytics security requirements, which seem to be disallowing lookaheads?
回答1:
((^|,)([0-9]|(1[0-7])))*((((^|,)[0-9](,[0-9]|(1[0-7]))*(,1[0-7])))|(((^|,)1[0-7]((,[0-9]|(1[0-7])))*(,[0-9]))))(,([0-9]|(1[0-7])))*$
Thanks to GA's extremely limited regex language, this is a pretty inefficient and gross regex, but it matches your use cases.
https://regex101.com/r/oN2jB0/8
来源：https://stackoverflow.com/questions/38229345/regular-expression-not-working-in-google-analytics-possibly-due-to-positive-loo