I have a regex which matches street names (see demo 1) and I have a regex which matches possible house numbers in Germany (see demo 2). Each regex works perfectly fine. In the next step I want to combine both regex (street names + house number). In other words, I am looking for a regex which matches both street names and house numbers together.
I have prepared a demo 3 with examples. I know these examples are not complete if you compare it with the strict rules here, but it is enough for my use case.
Since regex is a rule based language, let me try to explain the rules in words:
- In Germany the street name can be basicaly every kind of name. There can be a
.or-in between. - The regex should match even with lower case characters
- The house numbers are in most cases sth. like
99or99a. But I tried to be creative and added some additional possible examples
My problem:
I have solutions to each seperate case (see demo 1 and 2) but my problem is that I don’t know how to combine two regex to one (see demo 3).
Working regex for street names:
^(?:[A-Z] \d|[^\W\d_]{2,}\.?)(?:[- '’][^\W\d_]+\.?)*$
Working regex for house numbers:
^[1-9]\d{0,3} ?[a-zA-Z]?(?: ?[/-] ?[1-9]\d{0,3} ?[a-zA-Z]?)?$
Based on the regex shown above, how do I combine both of them in order to match my examples shown in demo 3?
>Solution :
Combining 2 regex into one:
^(?:[A-Z] \d|[^\W\d_]{2,}\.?)(?:[- '’][^\W\d_]+\.?)*\s+[1-9]\d{0,3} ?[a-zA-Z]?(?: ?[/-] ?[1-9]\d{0,3} ?[a-zA-Z]?)?$