NSArray of NSRegularExpressions in swift

问题

The fork here has a custom link function but the implementation in the actual code is in objective C.This is the code line and her it is printed again:

- (NSArray<NSRegularExpression*>*)getRegularExpressions
{
   return [NSArray arrayWithObject:[NSRegularExpression regularExpressionWithPattern:@"#([a-zA-Z0-9])+" options:0 error:NULL]];
}

I was wondering how i could reproduce this in swift, I have already placed all of the framework code, I just need to know how to do this.

回答1:

Try this

func getRegularExpressions() -> [NSRegularExpression] {
    var arrayOfExpressions = [NSRegularExpression]()
    do
    {
        let expresion = try NSRegularExpression(pattern: "#([a-zA-Z0-9])+", options:.CaseInsensitive)
        arrayOfExpressions.append(expresion)
    }catch _
    {
        arrayOfExpressions.removeAll()
        return arrayOfExpressions
    }
    return arrayOfExpressions;
}

I hope this helps you

来源：https://stackoverflow.com/questions/38581701/nsarray-of-nsregularexpressions-in-swift