Compare string with German umlauts

[Martin Tschierschke]

Hi,
I have to find a certain line in a file, with a text containing 
umlauts.

How do you do this?

The following was not working:

foreach(i,line; file){
  if(line=="My text with ö oe, ä ae or ü"){
    writeln("found it at line",i)
  }
}

I ended up using line.canFind("with part of the text without 
umlaut").

It solved the problem, but what is the right way to use umlauts 
(encode them) inside the program?