On Tue, 21 Mar 2017 12:50:18 +0100, Elizabeth Mattijsen <l...@dijkmat.nl> wrote:
> > On 21 Mar 2017, at 12:38, ToddAndMargo <toddandma...@zoho.com> wrote:
> > This is just one of those chatter posts.
> >
> > To me, the holy grail of coding is maintainability,
> > which is why I code in Top Down.
> >
> > Code like below get my goat because I have to look
> > at it several times before I realize what is going on
> >
> > $Name.IO.f or $Name.IO.open(:w).close;
> >
> > Basically the above says:
> >
> > If the the first part of the logical OR passes,
> > then don't bother testing the second part. And
> > if the second part of the Logical OR passes or
> > fails, then "so what”.
>
> FWIW, I agree with you. I don’t like the use of and/or in this
> capacity. But many people swear by it. To each its own.
I am in the opposite camp. I use this all the time, as - to me - it
makes perfect sense. I am rather consequent (in perl5) using the mix of
|| (between expressions) and or (between an expression and an action)
expression or action;
expression || expression and action;
> > I'd much rather see
> > if not $PathAndName.IO.f { $PathAndName.IO.open(:w).close; }
I can live with that, but I still prefer the or, because it reads
cleaner
> > Which to me says:
> >
> > If this does not pass, then do something about it.
> >
> > To me, it is much more maintainable.
>
> And then there is the postfix if/unless way, which I personally like:
>
> $PathAndName.IO.open(:w).close unless $PathAndName.IO.f;
Which I really abhor/hate. *THAT* makes me have to read the line thrice
> Which to me reads:
>
> Create the file unless it already exists.
To me it reads "Create the file". Oh shit I shouldn't have as some
idiot told me too late not to if it rains.
Program minds differ :)
> Liz
--
H.Merijn Brand http://tux.nl Perl Monger http://amsterdam.pm.org/
using perl5.00307 .. 5.25 porting perl5 on HP-UX, AIX, and openSUSE
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http://qa.perl.org http://www.goldmark.org/jeff/stupid-disclaimers/
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