in reply to Make string that results from split behave like double-quoted string

my $string = 'Here comes \n a new line'; $string = eval "qq#$string#"; print $string;

Probably dangerous.

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Re^2: Make string that results from split behave like double-quoted string
by AnomalousMonk (Archbishop) on Aug 23, 2013 at 23:19 UTC

    Probably dangerous.

      ...dangerous.

      Yes shure, may be.

      But what do you suggest?

      Doesn't that mean that we should avoid eval as well as do?

      And isn't the usage of eval and do sometimes very handy?

      And btw: what about M-x load-file or something similar in emacs/elisp?

      Always risky?

      Best regards, Karl

      «The Crux of the Biscuit is the Apostrophe»

        ...dangerous.
        ...
        But what do you suggest?
        Doesn't that mean that we should avoid eval as well as do?
        And isn't the usage of eval and do sometimes very handy?
        ...

        The idea I wanted to get across was that, as with handing the keys to one's car to a complete stranger (sometimes very useful, even necessary), the default initial assessment of the use of eval on (possibly user generated) data should simply be "dangerous".

        As one gains more insight into the acutal circumstances one faces, one might consider prepending a modifier like "Not likely to be...", "Probably..." or "Catastrophically..." to the initial assessment, but the first approach I would suggest would always be one of great circumspection.

        And btw: what about M-x load-file or something similar in emacs/elisp?
        Always risky?

        Indeed, I've seen people do a lot of damage using text editors a lot simpler than emacs. I guess the ultimate lesson is that short of chopping off the fingers of certain individuals, we must always maintain a stance of "situational awareness" in life.