Class: PolyrexLinks

Inherits:
Polyrex
  • Object
show all
Defined in:
lib/polyrex-links.rb

Instance Method Summary collapse

Constructor Details

#initialize(x = 'links/link[name,url]', delimiter: ' # ', debug: false) ⇒ PolyrexLinks

Returns a new instance of PolyrexLinks.



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# File 'lib/polyrex-links.rb', line 9

def initialize(x='links/link[name,url]', delimiter: ' # ', debug: false)
  super(x)
  @delimiter = self.delimiter = delimiter
  @debug = debug
end

Instance Method Details

Returns the Polyrex element for the given path



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# File 'lib/polyrex-links.rb', line 17

def link(s)
  
  self.rxpath(s.split('/').map {|x| "link[name='%s']" % x}.join('/')).first
  
end

#locate(raw_path) ⇒ Object

Returns the url and remaining arguments for the given path



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# File 'lib/polyrex-links.rb', line 25

def locate(raw_path)
 
  return nil if raw_path.nil? or raw_path.strip.empty?
  path = raw_path.sub(/^\//,'')
  a = path.split('/')
  a2 = []
  (a2 << a.clone; a.pop) while a.any?
  return nil if a2.empty?
  
  mask = "records/link[summary/name='%s']"
  
  begin 
    c = a2.shift; xpath = c.map{|x| mask % x}.join + '/summary/url/text()'
    r = self.element xpath 
  end until r or a2.empty?
  
  # return the found path along with any remaining string which 
  #   it didn't find, or it will return nil.
  
  puts "c: %s\npath: %s\nr: %s" % [c, path, r].map(&:inspect) if @debug

  r ? [r, path.sub(c.join('/'),'')] : nil
end

#to_h ⇒ Object

Return a flat Hash object containing all the links. The link path is used as the key and the value is the url



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# File 'lib/polyrex-links.rb', line 53

def to_h()
  
  h = {}
  
  each_link {|key, value| h[key] = value }
  h
  
end