Hi haukex,

you are right it was a typo.

Thank you very much for your insights regarding the word boundaries and also those on literally matching, did not take it into account so far.

I changed both in my code and now it works as intended, I do not yet fully understand to build a regex dynamically though. But i do understand the possiblity to write more elegant code

so finally still with repetition and static ;-)

if ( m/:Calendar(?=\/)/ or
     m/:Contacts(?=\/)/ or
     m/(?<=\"\/)Users/ or
     m/.+@.+\"\s=/ or
     m/_A_domain_D_com/ ) {
          foreach my $key ( sort keys %replacements ) {
                  s/\Q$key\E/$replacements{$key}/g;
                  }
     }
[download]

Indeed that helped Hauke, thanks!

Sascha