Mata syntax: single line if statements

[Salah Mahmud]

what is the syntactic rule that underlines the following behaviour (compile error in the first and fourth if stmts but not the second or third):


. mata: if (1==1) x=1;

unexpected end of line
<istmt> incomplete
r(3000);

. mata: if (1==1) x=1;;

. mata: if (1==1) x=1; x;
1

. mata: if (1==1) x

unexpected end of line
<istmt> incomplete
r(3000);

[Joseph Coveney]

See the explanation here.