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in reply to Re: Mutator chaining considered harmful
in thread Mutator chaining considered harmful

Or to stay closer to home, Perl's 5.9.x stacking file operators:
if (-r -w $file) { # File is readable and writeable ... }

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Re^3: Mutator chaining considered harmful
by Anonymous Monk on Jul 12, 2007 at 08:27 UTC

    I don't think those are stacked, exactly. I think they use the syntax of single-letter command-line options.

    -vH