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Contents
require 'mechanize'
module GoogleScholar
def self.user_agent
@@a ||= Mechanize.new
end
def self.citation_link(title)
citation_link = nil
# Get citation page
user_agent.get("http://scholar.google.es/scholar?q='#{ title }'&hl=es&lr=&lr=") do |page|
article = page.search('div[@class=gs_r]').first
return nil if article.nil?
return article.search('a').select{|link| link['href'] =~ /scholar\?cites/ && link.inner_html =~ /\d+$/ }.first
end
end
def self.full_text_url(title)
full_text_link = nil
# Get page
user_agent.get("http://scholar.google.es/scholar?q='#{ title }'&hl=es&lr=&lr=") do |page|
article = page.search('div[@class=gs_r]').first
return nil if article.nil?
link = article.search('a').select{ |link|
link['href'] =~ /\.pdf$/ || link['href'] =~ /type=pdf/
}.first
return nil if link.nil?
return link['href']
end
end
def self.number_cites(title)
link = citation_link title
return 0 if link.nil?
link.inner_html =~ /(\d+)$/
return $1.to_i
end
end
#def get_citers(title)
# puts title
# citation_link = nil
#
# # Get citation page
# $a.get("http://scholar.google.es/scholar?q='#{ title }'&hl=es&lr=&lr=") do |page|
# citation_link = page.search('div[@class=gs_r]').first.search('a').select{|link| link['href'] =~ /scholar\?cites/ && link.inner_html =~ /\d+$/ }.first
# end
#
# return [] if citation_link.nil?
#
# # Parse citations
#
# citers = []
# $a.get("http://scholar.google.es" + citation_link['href']) do |page|
# citers = page.search('div[@class=gs_r]').collect do |entry|
# entry.search('h3').first.search('a').first.inner_html
# end
# end
#
# return citers
#end
Version data entries
122 entries across 122 versions & 1 rubygems