Maltese forms of plural

[Ramon Casha]

In the Maltese language (mt), there are 1 singular + 3 plural forms, as 
follows:

n==1 
n==0 || ((n%100) >=2 && (n%100) <= 10)
(n%100) >=11 && (n%100) <= 19
all others

From what I can make out, this translates as:
nplurals = 4
expression = n==1?0 : 
( n==0 || ((n%100) >=2 && (n%100) <= 10) ) ? 1 : 
( (n%100) >=11 && (n%100) <= 19 ) ? 2 : 3

--
Ramon Casha