From: Elliot Winkler <elliot.winkler@...>
Date: 2006-10-31T05:35:50+09:00
Subject: Re: PP / PrettyPrint annoyances

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#inspect would work if the array were simple, but the array I want to pretty
print is not. I would give you the real case but it's really long, so a
better example is:

#!/usr/bin/ruby
require 'pp'
array = [
    { :key1 => 'value1', :key2 => 'value2', :key3 => 'value3' },
    1, 2, 3,
    [
        'foo', 'bar',
        [
            { :key1 => 'value1', :key2 => 'value2' },
            'baz', 'quux'
        ]
    ]
]
array2 = array.dup
array2[4][2].push('a longer string', 'an even longer string')

p array
puts
pp array
puts
p array2
puts
pp array2

==OUTPUT==

[{:key1=>"value1", :key2=>"value2", :key3=>"value3"}, 1, 2, 3, ["foo",
"bar", [{:key1=>"value1", :key2=>"value2"}, "baz", "quux"]]]

[{:key1=>"value1", :key2=>"value2", :key3=>"value3"},
 1,
 2,
 3,
 ["foo", "bar", [{:key1=>"value1", :key2=>"value2"}, "baz", "quux"]]]

[{:key1=>"value1", :key2=>"value2", :key3=>"value3"}, 1, 2, 3, ["foo",
"bar", [{:key1=>"value1", :key2=>"value2"}, "baz", "quux", "longer string",
"even longer string"]]]

[{:key1=>"value1", :key2=>"value2", :key3=>"value3"},
 1,
 2,
 3,
 ["foo",
  "bar",
  [{:key1=>"value1", :key2=>"value2"},
   "baz",
   "quux",
   "longer string",
   "even longer string"]]]

For array2, I want 1, 2, and 3 to be on one line, "foo" and "bar" to be one
line, and "baz", "quux" and "longer string" to be one line. PP isn't doing
that, obviously.

Perhaps someone knows of another pretty print library?

-- Elliot



On 10/30/06, Justin Collins <collinsj@seattleu.edu> wrote:
>
> Elliot Winkler wrote:
> > Hello all,
> >
> > PP/PrettyPrint comes in handy when I'm trying to inspect the contents of
> > large arrays, but what if some elements are short length-wise?
> >
> > irb(main):001:0> require 'pp'
> > => true
> > irb(main):002:0> pp (0..20).to_a
> > [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19,
> > 20]
> > => nil
> > irb(main):003:0> pp (0..40).to_a
> > [0,
> <snip long array
> >
> >
> > This behavior is sort of ridiculous in my opinion. I'd rather have
> > something
> > more like:
> >
> > [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19,
> > 20,
> > 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38,
> > 39, 40]
> >
> > I've looked at the source code and documentation for PrettyPrint and
> > PP but
> > I don't understand how they work, so I'm not really sure how the classes
> > could be extended so they work how I want them to work. I also tried
> > numerous Google searches and it seems no one has a problem with the
> > default
> > behavior as I do. Can someone give me a hand here or at least point me
> in
> > the right direction?
>
> You could just use inspect (not sure if that's what you really want,
> though):
>
> irb(main):001:0> (0..100).to_a.inspect
> => "[0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18,
> 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36,
> 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54,
> 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72,
> 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90,
> 91, 92, 93, 94, 95, 96, 97, 98, 99, 100]"
>
>
> -Justin
>
>

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