Module: G

Defined in:
lib/g-module/version.rb,
lib/g-module.rb

Overview

:nodoc:

Defined Under Namespace

Modules: VERSION

Constant Summary collapse

C =

build-in default values. Use ‘UserPreferences’ to overwrite

{
    :count  => 4,                       # number of results showed
    :indent => 8, :tw => 70,            # indentation and descripton width 
    :goog   => "http://www.google.com", # where to ask?
    :open   => "system 'open \"${url}\"'",  # loads into HTTP browser on Mac OSX
    #:count  => "puts ${count}",
}
HOMEDIR =

try loading user preference from “~/.g” where the windows/mac cross platform home directory is defined as:

(
    ENV["HOME"] or ENV["USERPROFILE"] or 
    (File.directory?("h:/") ? "h:" : "c:")
).gsub(/\\/, "/")
UserPreference =

overwrite ‘C’ defaults with settings from this/your yaml preference file.

File.join(HOMEDIR, ".g")

Class Method Summary collapse

Class Method Details

.call(action, param) ⇒ Object 



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# File 'lib/g-module.rb', line 57

def call(action, param)
    cmd = C[action]
    param.each_pair do |k,v|
        dputs "#{k} --> #{v}"
        cmd = cmd.gsub("\$\{#{k}\}", param[k.to_sym])
    end
    dputs "--#{cmd}--"
    eval cmd
end

.configure ⇒ Object 



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# File 'lib/g-module.rb', line 131

def configure
    class << C # pimp-my-hash as first seen on why/redhanded 
        def method_missing(m,*a)
            if m.to_s =~ /=$/
                self[$`.to_sym] = a[0]
            elsif a.empty?
                self[m]
            else
                raise NoMethodError, "#{m}"
            end
        end
    end

    # overwrite defaults with user preferences
    c = YAML.load(File.read(C.cfile)) rescue {}
    C.merge!(c) 
    #puts "after: #{C.inspect}"
end

.count(search_tokens) ⇒ Object 



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# File 'lib/g-module.rb', line 81

def count(search_tokens)
    doc = G.query(search_tokens) 
    e = (doc/"table tr td[@nowrap]").find("error in #{self}") do |e| 
        e.inner_text =~ /Results 1 - / 
    end
    count = Integer((e/"b")[2].inner_text.gsub(/,/,'_'))
    puts "#{count} results for #{search_tokens.inspect}"
    count
end

.dputs(*msg) ⇒ Object 



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# File 'lib/g-module.rb', line 55

def dputs *msg; puts *msg if $DEBUG; end

.fight(search_tokens) ⇒ Object 



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# File 'lib/g-module.rb', line 91

def fight(search_tokens)
    left, *right = *search_tokens
    left_count = count([left])
    right_count = count(right)
    puts "warn: superfluous words added on right side" if 1 < right.size 
    puts "#{left} #{left_count} : #{right_count} #{right.join ' '}"
    [left_count, right_count]
end

.index_page(search_tokens) ⇒ Object 



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# File 'lib/g-module.rb', line 100

def index_page(search_tokens)

    doc = G.query(search_tokens) 
    entries = (doc/"//div[@class='g']").map do |e|
        a = e.at(:a)
        txt = ""
        e.at(:font).children.find do |t| 
            txt << t.inner_text;  
            t.name == "br" rescue false;
        end
        #:txt = e.at(:font).search("*".."br").map {|t| t.inner_text}.join(" "),
        { :title => a.inner_text, :link => a["href"], :txt => txt, }
    end


    entries.each_with_index do |e, i|
        indent = " " * G::C.indent
        puts "\#{\"%d\" % (i+1)}: \"\#{e[:title]}\"\n   URL: \#{e[:link]}\n\n\#{indent}\#{G.reformat_wrapped(e[:txt], G::C.tw).gsub(/\\n/, \"\\n\#{indent}\")}\n    EOT\n    end\n\n    print \"open which? \"\n    idx = Integer($stdin.gets) rescue 1\n    url = entries[idx-1][:link]\n    G.call :open, :url => url\nend\n"

.lucky(search_tokens) ⇒ Object 



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# File 'lib/g-module.rb', line 75

def lucky(search_tokens)
    doc = G.query(search_tokens) 
    url = (doc/"div[@class='g'] a").first["href"]
    G.call :open, :url => url
end

.query(words) ⇒ Object 



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# File 'lib/g-module.rb', line 67

def query words
    q = words.map { |w| CGI.escape(w) }.join("+")
    url = "#{C.goog}/search?q=#{q}&num=#{C.count}"
    dputs "G query: #{url}"
    #File.open("/tmp/g", "a") {|fd| fd.write(open(url).read) }
    @doc = Hpricot(open(url).read)
end

.reformat_wrapped(s, width = 78) ⇒ Object

helper: wrap text to width character per line



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# File 'lib/g-module.rb', line 51

def reformat_wrapped(s, width=78)
    s.gsub(/\s+/, " ").gsub(/(.{1,#{width}})( |Z)/, "\\1\n")
end