in reply to Re^2: perl equiv to cmd start
in thread perl equiv to cmd start

to avoid backslash-orgies like this, you might be interested in the qq function operator. The corresponding entry in perlfunc is a bit terse, but see perlop under Quote and Quote like Operators. The nice thing about it is that you can choose the delimiter that you want
Non-bracketing delimiters use the same character fore and aft, but the four sorts of ASCII brackets (round, angle, square, curly) all nest
Your solution could then mutate to e.g.
$mylaunch = qq !START "" "$myexe" "$myfile"! ;
exec("$mylaunch");

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(as with "normal" functions, you are allowed to have whitespace between function name and opening delimiter)

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Re^4: perl equiv to cmd start
by haukex (Archbishop) on Jan 18, 2017 at 14:08 UTC

    Hi soonix,

    the qq function

    I know I'm probably being overly pedantic, but I AFAIK qq and related (q, qw, qx, etc.) aren't functions, they're operators. For example, I can't replace the parens around function arguments with other characters, as I can in qx# echo foo #. I also can't call a function with a syntax like foo(a b c) as I can with qw(a b c). (In fact, for a while now I've explicitly been avoiding parens on qw and friends to disambiguate.)

    Regards,
    -- Hauke D

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      Yes, I hesitated to call them functions, but as they (qq, etcetera) are listed in perlfunc, I did ;-)

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        They are also listed in perlop and are operators since they have a precedence and special parsing at compile time.

        The confusion stems from Perl's DWIM approach of redundant documentation.

        from perlfunc#Perl-Functions-by-Category

        Here are Perl's functions (including things that look like functions , like some keywords and named operators )

        Cheers Rolf
        (addicted to the Perl Programming Language and ☆☆☆☆ :)
        Je suis Charlie!

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