Question

In perl you can write

$string =~ tr/[a,e,i,o,u,y]/[A,E,I,O,U,Y]/;

for example.

Is it possible to achieve the same “translation” effects with VB.Net regexes?

Thanks you!

PS: I’m not searching for a way to port this very example, it’s more of a curiosity question 🙂

Answer 1

There is no standard method for this. You can do it by iterating over each character in your input string and using a dictionary to map it to another character (or leave it unchanged if the character is not found in the dictionary). The result can be built using a StringBuilder for performance reasons.

If performance is not an issue then you might be able to use a few replace operations instead:

s = s.Replace("a", "A")
     .Replace("e", "E")
     ...
     .Replace("y", "Y");