@MartinSleziak Technically, regex is not really javascript. Many different languages support similar regex syntax (because nobody wants to learn a different syntax).
I understood that \d stands for a digit, but I wasn't sure about [\d-]. So [\d-]+ just means one or more digits? And |[a-z] just means that a letter is possible, too?
@MartinSleziak [\d-] means ( either digit or dash ). + means ( one or more ). | means ( or ).
@MartinSleziak Yes I can easily add in the possibilities, but it's best to stick to the recognized formats unless we update the upstream version otherwise everyone who downloads from the official source would get a 'broken' interface.