Long story short. I'm trying to overload the normal behavior of an
object/instance in a string. Instead of replying "<Test:0x101121db0>" I
would like it too return a specific string, or something similar. I have
tried to overload inspect, and it seems to work pretty well, except when
using the object with puts or in a string "#{p}".
My english ain't good, but I hope you understand the principle of what I
am trying to achieve.
There are two different methods which Ruby uses to get a printstring
from an object, both of which should return a String.
inspect produces a 'programmer friendly' printstring in general, while
to_s produces a 'user friendly' string.
There's a Kernel method p which is roughly equvalent to:
def p(arg)
puts arg.inspect
end
puts just uses to_s to convert non-strings to strings.
And irb displays the the value of inspect after evaluating an expression.
[code]
class Test
def inspect
puts "this is a test"
end
This should simply return the string, you don't always want to puts
the result, and puts will cause the result to be nil, not the string.
end
p = Test.new
this is a test
p
this is a test
puts p
#<Test:0x101121db0>
"#{p}"
=> "#<Hejsan:0x1010fd7f8>"
[/code]
Try this:
class Test
def inspect
"this is a test inspection"
end
def to_s
"this is a test"
end
end
p = Test.new
puts p
puts "#{p}"
puts p.inspect
which produces:
this is a test
this is a test
this is a test inspection
···
On Wed, Apr 28, 2010 at 1:03 PM, Walle Wallen <walle.sthlm@gmail.com> wrote:
--
Rick DeNatale
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