From: Ilmari Heikkinen <kig@...>
Date: 2005-01-24T07:40:05+09:00
Subject: Re: [ANN] IHelp 0.2.0

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Hi, thanks for the feedback :)

On 23.1.2005, at 14:00, Csaba Henk wrote:

> Is there a way to get the formatted help (in either format), without
> superflouos conversions?
>
> I could do
>
> rio=IHelp.ri_driver.instance_variable_get(:@options)
> rio.use_stdout=true
>
> and then maybe I could capture the output somehow, but that's a bit too
> much hack. (I want things like concatenating various help informations,
> like the help for all the String methods.)
>

Yes, I think it's possible.

Looked at what RI is doing, and it seems to me that this is the 
simplest way to go (if there are any RDoc gurus reading this, please 
tell if there's a better way.) And yes, it's a hack.

--
Ilmari Heikkinen


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require 'ihelp'
require 'stringio'
s = StringIO.new

# get the formatter
formatter = RI::Options.instance.formatter
# hack the formatter
[:puts, :print, :write].each{|method_name|
  formatter.send(:define_method, method_name){|*args|
    self.class.out.send(method_name, *args)
  }
}
class << formatter; attr_accessor :out end

formatter.out = s
RI::Options.instance.use_stdout = true

# collect formatted help into s
String.methods.each{|m| String.help(m)}

RI::Options.instance.use_stdout = false
formatter.out = STDOUT

s.rewind
str = s.read
# display the big collected help doc
RI::Options.instance.displayer.instance_eval{ page{ puts str } }

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