Re: Solicitation For Ideas: Tutorial On Precedence

[tphyahoo]

Something that continues to blow sand in my gears is print, in conjunction with the dot operator, and lists that I mistakenly treat as scalars. I think this has something to do with precedence of the dot operator, so perhaps this could be touched on. Where *is* the dot operator documented, anyway?

See Yet another List Versus Scalar Context Meditation

[Anonymous Monk]

From the perlop manual page:

           left        terms and list operators (leftward)
           left        ->
           nonassoc    ++ --
           right       **
           right       ! ~ \ and unary + and -
           left        =~ !~
           left        * / % x
           left        + - .
           left        << >>
           nonassoc    named unary operators
           nonassoc    < > <= >= lt gt le ge
           nonassoc    == != <=> eq ne cmp
           left        &
           left        | ^
           left        &&
           left        ||
           nonassoc    ..  ...
           right       ?:
           right       = += -= *= etc.
           left        , =>
           nonassoc    list operators (rightward)
           right       not
           left        and
           left        or xor

(Eigth line, marked in red). And further down:

       Additive Operators

       Binary "+" returns the sum of two numbers.

       Binary "-" returns the difference of two numbers.

       Binary "." concatenates two strings.