4
5
Predef.length Predef.nonExist
\x -> Predef.length x
"ab"
"cd"
"abc"
"d"
"ABCD"
"abcd"
Predef.PFalse
Predef.PTrue
Predef.PFalse
"no"
"yes"
"no"
Predef.PTrue
Predef.PTrue
Predef.PFalse
Predef.PTrue
Predef.PTrue
Predef.PFalse
Predef.PTrue
Predef.PFalse
Predef.PTrue
5
user error
"x" ++ Predef.nonExist ++ "y"
"x" ++ Predef.BIND ++ "y"
"x" ++ Predef.SOFT_BIND ++ "y"
"x" ++ Predef.SOFT_SPACE ++ "y"
"x" ++ Predef.CAPIT ++ "y"
"x" ++ Predef.ALL_CAPIT ++ "y"
"ab"
\x -> x + "b"
Predef.PTrue