Created
September 17, 2012 10:47
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Habrahabr comments analyzer
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#!/usr/bin/env ruby | |
# encoding: utf-8 | |
require 'nokogiri' | |
require 'open-uri' | |
require 'yaml' | |
################################################### | |
# ♥ http://habrahabr.ru/users/bupycnet/comments/ | |
NICK = unless ARGV.empty? then "#{ARGV.pop}" else | |
puts "Использование: ./parser.rb nick" | |
exit | |
end | |
CACHE = "cache-#{NICK}.yaml" | |
################################################### | |
class Parser | |
attr_reader :nick | |
def initialize nick | |
@nick = nick | |
end | |
def get_document relative | |
Nokogiri::HTML(open("http://habrahabr.ru/#{relative}", | |
"User-Agent" => "Mozilla/5.0")) | |
end | |
def get_pages | |
get_document("users/#{@nick}/comments/page999/").css('#nav-pages li').max.content | |
end | |
def get_comments page | |
get_document("users/#{@nick}/comments/page#{page}/").css('.comment_item .message').map{|html| html.content.strip} | |
end | |
def get_all_comments | |
comments = [] | |
1.upto(get_pages.to_i).each { |page| | |
comments << get_comments(page) | |
} | |
comments.flatten | |
end | |
end | |
def run | |
comments = [] | |
# check for cache | |
unless File.exist? CACHE | |
File.open(CACHE, "w") do |file| | |
# do cache | |
comments = Parser.new(NICK).get_all_comments | |
file.puts YAML::dump(comments) | |
end | |
else | |
comments = YAML::load(open(CACHE, "r")) | |
end | |
puts "Пользователь: #{NICK}" | |
puts "Всего комментариев: #{comments.size}" | |
overall = comments.inject{ |sum, e| sum = e.length + sum.to_i} | |
puts "Общая длина: #{overall}" | |
puts "Средняя длина комментария: #{overall / comments.size}" | |
puts "Длины первых 10 самых длинных:" | |
p comments.map{|comment| comment.length }.sort.reverse[0..10] | |
end | |
run |
Не забудьте поставить nokogiri!
gem install nokogiri
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Примеры использования: