As a followup on Rules / regular expression with account_statement_rule I’m struggling with the regular expression part of the different fields.
Can anybody give some examples how to do regular expressions and what they do? For example I want to look for parts in a string. Also the help text talks about several groups, how apply them and what do they do?
I think for many of you it’s a piece of cake but for somebody else it’s a pain to understand regular expression. And examples is a way to get a basic understanding what we have to put in the different fields. So any help is very appreciated.