From ZenSpider, http://blog.zenspider.com/archives/2006/08/full_text_searc.html:
Check it out. Quick and dirty searching of ri content:

Updated using: http://blog.zenspider.com/archives/2006/08/new_and_improve.html

They added path independence and searching of gems and local installed ri/rdoc. Enjoy!

   1  
   2  #!/usr/local/bin/ruby -w
   3  
   4  require 'rdoc/ri/ri_paths'
   5  require 'find'
   6  require 'yaml'
   7  
   8  search = ARGV.shift
   9  
  10  puts "Searching for #{search}"
  11  puts
  12  
  13  dirs = RI::Paths::PATH
  14  dirs.each do |dir|
  15    Dir.chdir dir do
  16      Find.find('.') do |path|
  17        next unless test ?f, path
  18        yaml = File.read path
  19        if yaml =~ /#{search}/io then
  20          full_name = $1 if yaml[/full_name: (.*)/]
  21          puts "** FOUND IN: #{full_name}"
  22          
  23          data = YAML.load yaml.gsub(/ \!.*/, '')
  24          desc = data['comment'].map { |x| x.values }.flatten.join("\n").gsub(/&quot;/, "'").gsub(/&lt;/, "<").gsub(/&gt;/, ">").gsub(/&amp;/, "&")
  25          puts
  26          puts desc
  27          puts
  28        end
  29      end
  30    end
  31  end

Lets you do stuff like:

   1  
   2  % ./risearch.rb duplicate
   3  Searching for duplicate
   4  [...]
   5  ** FOUND IN: Array#uniq!
   6  
   7  Removes duplicate elements from self. Returns nil if no changes are made (that is, no duplicates are found).
   8     a = [ 'a', 'a', 'b', 'b', 'c' ]
   9     a.uniq!   #=> ['a', 'b', 'c']
  10     b = [ 'a', 'b', 'c' ]
  11     b.uniq!   #=> nil
  12  
  13  ** FOUND IN: Array#|
  14  
  15  Set Union---Returns a new array by joining this array with other_array, removing duplicates.
  16     [ 'a', 'b', 'c' ] | [ 'c', 'd', 'a' ]
  17            #=> [ 'a', 'b', 'c', 'd' ]
  18  [...]

Posted by zenspider at August 15, 2006 04:16 PM | Bookmark This
Categories: Rails , Ruby , Toys