perltidy for ternary operator?

TomDLux has asked for the wisdom of the Perl Monks concerning the following question:

I'm using perltidy and would like to use Damian's PBP recommended layout for ternary operators:

my $var = ($condition ? $val_for_true
          :              $val_for_false
          );
[download]

Yes, I like to parenthesize them. How can I get perltidy to generate that layout? I've tried a number of things, including '-pbp', but no such luck. What I get is:

my $var = (   $condition 
            ? $val_for_true
            :  val_for_false );
[download]

As Occam said: Entia non sunt multiplicanda praeter necessitatem.

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Re: perltidy for ternary operator? by LanX (Saint) on Dec 06, 2014 at 18:44 UTC
I looked into PBP and that's not what it says! It recommends to Format cascaded ternary operators in columns and that's exactly what the -pbp switch does: `lanx@lanx-1005HA:~$ cat /tmp/tst.pl my $var1 = $condition ? $val_for_true : $val_for_none ; my $var2 = $condition ? $val_for_true : $condition2 ? $val_for_ +true2 : $val_for_none ; lanx@lanx-1005HA:~$ perltidy -pbp /tmp/tst.pl my $var1 = $condition ? $val_for_true : $val_for_none; my $var2 = $condition ? $val_for_true : $condition2 ? $val_for_true2 : $val_for_none;` [download] I'd appreciate if you'd fix the typo in the title, provide links to documentation of the modules (like perltidy) and chapters (like "Ternaries") you are questioning. Cheers Rolf _{(addicted to the Perl Programming Language and ☆☆☆☆ :)}	[reply] [d/l]
Re^2: perltidy for ternary operator? by TomDLux (Vicar) on Dec 06, 2014 at 18:54 UTC
Page 32 of PBP, first edition : </p You can use the tabular layout even if you have only a singular ternary .... Starting out this way makes it easier for maintainers to subsequently add new alternatives to the table. As Occam said: Entia non sunt multiplicanda praeter necessitatem.	[reply]
Re^3: perltidy for ternary operator? by LanX (Saint) on Dec 06, 2014 at 19:06 UTC
That's a suggestion ("you can") for the case you expect new entries to come. But that's not a problem with perltidy, cause cascades (as demonstrated) would be fixed automatically. And I doubt that breaking simple ternaries would be appreciated by the majority. It might interest you that tidy's output of a simple ternaries depends on existing linebreaks: (see `-bot` option)š `lanx@lanx-1005HA:~$ cat /tmp/tst.pl my $var1 = $condition ? $val_for_true : $val_for_none ; #own linebreak my $var2 = $condition ? $val_for_true : $val_for_none ; lanx@lanx-1005HA:~$ perltidy -pbp /tmp/tst.pl my $var1 = $condition ? $val_for_true : $val_for_none; #own linebreak my $var2 = $condition ? $val_for_true : $val_for_none;` [download] Since the documentation mentions ternaries only once for `-bot` I doubt your goal can be achieved! (i.e. without patching the code) Cheers Rolf _{(addicted to the Perl Programming Language and ☆☆☆☆ :)} update š) i.a.W if you expect the ternary to be cascaded in the future then enter a linebreak manually.	[reply] [d/l] [select]
Re^4: perltidy for ternary operator? by TomDLux (Vicar) on Dec 06, 2014 at 21:36 UTC
Re^5: perltidy for ternary operator? by atcroft (Abbot) on Dec 07, 2014 at 04:51 UTC
Re^5: perltidy for ternary operator? by LanX (Saint) on Dec 06, 2014 at 22:24 UTC

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