Direct string representation in Ruby -

Is there an easy way to present a direct string of ruby ​​build?

For example:

  a = [: foo,: bar]   
 when  a.to_s  I:  <<>  "foobar"   
 What I'm looking for:  
  "[ : Foo ,: bar] "   
 
 
 Which version of Ruby are you using ? I'm getting the use of Ruby 1.9:  
  irb (main): 002: 0> A = [: foo ,: bar] = & gt; [: Foo,: bar] irb (main): 003: 0> A.to_s = & gt; "[: Foo,: Bar]" IRB (Main): 004: 0> A.inspect = & gt; "[: Foo,: bar]"   
  Edit:  As indicated by @ Flanders, in 1.8.7, you inspect  Can . In general,  inspection  is considered to provide human-readable strings, even if  to_s  does not:  
 
 obj.inspect  ???? String  
 returns the human-readable representation string of obj if it is not overridden and there is no frequency variable, then uses the to_s method to generate the string.   
 There is no claim about being human-readable.