Class: Browscap::Parser

Inherits:
Object
  • Object
show all
Defined in:
lib/browscap/parser.rb

Instance Method Summary collapse

Constructor Details

#initialize(filename = File.join(File.dirname(__FILE__), '../..', 'ini', 'default.ini'), opts = {}) ⇒ Parser

Returns a new instance of Parser.



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# File 'lib/browscap/parser.rb', line 6

def initialize(filename = File.join(File.dirname(__FILE__), '../..', 'ini', 'default.ini'), opts={})
  @@user_agent_properties ||= {}
  @@user_agent_regexps ||= {}
  @@match_cache ||= {}
  @@encoding = opts[:encoding] || 'ISO-8859-1'

  if @@user_agent_properties.empty? || @@user_agent_regexps.empty?
    ini = IniFile.load(filename, :encoding => @@encoding)

    # Remote meta sections
    ini.delete_section '*'
    ini.delete_section 'GJK_Browscap_Version'

    # Create a list of non-parent sections
    child_sections = ini.sections.dup
    ini.sections.each do |section|
      child_sections.delete ini[section]["Parent"]
    end

    # Populate user_agent_properties and user_agent_regexps
    child_sections.each do |section|
      properties = get_browser_props(ini, section)

      browser = Browser.new
      browser.browser = properties['Browser']
      browser.version = properties['Version']
      browser.major_ver = properties['MajorVer'].to_i
      browser.minor_ver = properties['MinorVer'].to_i
      browser.platform = properties['Platform']
      browser.alpha = properties['Alpha'].downcase == 'true'
      browser.beta = properties['Beta'].downcase == 'true'
      browser.win16 = properties['Win16'].downcase == 'true'
      browser.win32 = properties['Win32'].downcase == 'true'
      browser.win64 = properties['Win64'].downcase == 'true'
      browser.frames = properties['Frames'].downcase == 'true'
      browser.iframes = properties['IFrames'].downcase == 'true'
      browser.tables = properties['Tables'].downcase == 'true'
      browser.cookies = properties['Cookies'].downcase == 'true'
      browser.background_sounds = properties['BackgroundSounds'].downcase == 'true'
      browser.javascript = properties['JavaScript'].downcase == 'true'
      browser.vbscript = properties['VBScript'].downcase == 'true'
      browser.java_applets = properties['JavaApplets'].downcase == 'true'
      browser.activex_controls = properties['ActiveXControls'].downcase == 'true'
      browser.banned = properties['isBanned'].downcase == 'true'
      browser.mobile_device = properties['isMobileDevice'].downcase == 'true'
      browser.syndication_reader = properties['isSyndicationReader'].downcase == 'true'
      browser.crawler = properties['Crawler'].downcase == 'true'
      browser.css_version = properties['CssVersion'].to_i
      browser.supports_css = properties['supportsCSS'].downcase == 'true'
      browser.aol_version = properties['aolVersion'].to_i
      browser.aol = properties['AOL'].downcase == 'true'

      @@user_agent_properties[section] = browser

      # Convert .ini file regexp syntax into ruby regexp syntax
      regexp = section.dup
      regexp.gsub! /([\^\$\(\)\[\]\.\-])/, "\\\\\\1"
      regexp.gsub! "?", "."
      regexp.gsub! "*", ".*?"

      @@user_agent_regexps[section] = Regexp.new(("^%s$" % regexp).force_encoding(@@encoding))
    end
  end
end

Instance Method Details

#query(user_agent) ⇒ Object Also known as: =~

Looks up the given user agent string and returns a dictionary containing information on this browser or bot.



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# File 'lib/browscap/parser.rb', line 72

def query(user_agent)
  section = match(user_agent)
  @@user_agent_properties[section]
end