For simplicity sake, let's say I have the following literal string:
abc[4;?;z;*]def
where 4, ?, z and * can appear in random order, are separated by a ; , and are characters (or strings) that i know beforehand.
I have this regex that matches the string using 'or' groups:
abc\[(?:z|\*|4|\?|\;)+\]def
The problem is that is still matching if one of the elements is missing in the string, and I want to check if all are present:
abc[?;z;*]def
Capturing groups are irrelevant for me. I just want to confirm the whole string.
You can use
abc\[(?=[^][]*z)(?=[^][]*4)(?=[^][]*\?)(?=[^][]*;)(?=[^][]*\*)[z*4?;]+]def
See the regex demo. Details:
abc\[ - a literal abc[ string(?=[^][]*z) - after zero or more chars other than [ and ], there must be a z(?=[^][]*4) - after zero or more chars other than [ and ], there must be a 4(?=[^][]*\?) - after zero or more chars other than [ and ], there must be a ?(?=[^][]*;) - after zero or more chars other than [ and ], there must be a ;(?=[^][]*\*) - after zero or more chars other than [ and ], there must be a *[z*4?;]+ - one or more chars in the set, z, *, 4, ?, ;]def - a literal ]def string.