On Mon, May 13, 2013 at 7:19 AM, Love U Ruby <[email protected]> wrote:
> ObjectSpace.each_object(Class).to_a.grep(/(stri)/i)
>
ObjectSpace.each_object(Class).select { |x| x.to_s =~ /stri/i }
=> [String, RubyToken::TkDXSTRING, RubyToken::TkDSTRING,
RubyToken::TkXSTRING, RubyToken::TkSTRING]
(Hello from Ruby 2.0)
Other solutions give you the stringified class name. The above gives you
the class object, in case you want to do something with it beside fettle
its characters.
Nitpick: the () aren't necessary in that regex; they're only needed if
you're capturing part of the output. E.g.,
ObjectSpace.each_object(Class).map { |x| x.to_s =~ /(.*)::.*stri/i and $1
}.compact.uniq
=> ["RubyToken"]
ObjectSpace.each_object(Class).to_a.map(&:to_s).grep(/(.*)::.*stri/i) { |_|
$1 }.uniq
=> ["RubyToken"]
Paul
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