Eval functions: regexp_test() and regexp_match() matching part of the string

[plepe]

I noticed that the eval functions regexp_test() and regexp_match() needs a pattern which matches the whole input, and in case you just want to match a part of the input you have to add ".*" in the beginning and the end. This is not as I expected it (and I guess most other people would expect it). In fact it took me some time testing patterns and a final email to one of the developers to solve it.

Anyway. I think this doesn't even really make sense, especially for the regexp_match() function, which returns the matched substring as 0th element of the array (which will always be the whole string).

Also, it contradicts the regexp condition selector: node[shop=~/market/] matches "supermarket" as well as "marketplace".

I would suggest to change regexp_test() and regexp_match() to match substring of the input string. You can always add ^ and $ to match the whole string. If this is not possible, maybe it would be possible to add a flag and improve documentation?