Grad in den online-Regex gefüttert. Bei beiden B-Varianten:

Your match failed outright. What this means is the engine, due to its internal optimizations, understood that your pattern would never match at any position, and thus did not even attempt to. If you want to see what would have happened if it tried, disable them with the checkbox above.


D.h. bei deinen Beispielen fängt er nicht mal zu arbeiten an, weil er vorher schon erkennt, dass es keinen match geben wird.
Last edited: 2016-07-26 11:23:28 +0200 (CEST)