contains all the given substrings in string (contains_all)

[saeed-mcu]

I want to determines whether the string matches all the given substrings or not. (all of them MUST contains)
Is it possible to all substrings are checked in a single pass over the target string to achieve good performance advantage over multiple calls to single contains function.

if contains_all function added in String functions of VRL , it can be very useful and applicable for log parsing.

[pront]

Hi @saeed-mcu, is the following example what you were thinking?

contains_all("The Needle In The Haystack", "Needle", "Haystack") # returns true

If yes, that seems reasonable.

[saeed-mcu]

Hi @pront , is the following example return false ?

contains_all("The Needle In The Haystack", "Needle", "not_exist") 

I expected , all substring exist in the string not one of them.
so I expected above example return false