AppendUniq append string to slice if it its not there yet.

CaseInsensitiveContains perform case-insensitive search of substr in s.

CsvToSlice convert s to []string; where s is in the form of string, string, string.

IsInCSVList find term in s, where s is in the form of "string, string,string ...".

RefToDigit convert references in rules like :1 :2 :3 to 1 2 3.

RemoveDuplicatesUnordered remove duplicates from elements.

RemoveElementUnlessEmpty remove string element from slice unless doing so will result in an empty slice.

TimeStampToUnix converts s in RFC3339 format to epoch.

TrimLeftChar remove the first char in string and trim any whitespaces from the result.

UniqStringSlice removes duplicate from a comma separated list into result slice.