Class: Foxy::Html

Inherits:
SimpleDelegator
  • Object
show all
Includes:
Monads
Defined in:
lib/foxy/html.rb

Instance Method Summary collapse

Methods included from Monads

#and_then, #dangerously, #many, #mapy, #normally, #optionaly, #safy, #then

Constructor Details

#initialize(html = nil) ⇒ Html

Returns a new instance of Html.



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# File 'lib/foxy/html.rb', line 14

def initialize(html = nil)
  if html.nil?
    super([])
  elsif html.is_a? self.class
    super(html.__getobj__)
  elsif html.respond_to?(:to_str)
    super(html.to_str.scan(RE_HTML).map { |args| Node.build(*args) })
  elsif html.respond_to?(:read)
    super(html.read.scan(RE_HTML).map { |args| Node.build(*args) })
  else
    super(html)
  end
end

Instance Method Details

#attr(name) ⇒ Object 



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# File 'lib/foxy/html.rb', line 98

def attr(name)
  first.attr(name)
end

#clean(**kws) ⇒ Object 



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# File 'lib/foxy/html.rb', line 28

def clean(**kws)
  Html.new(map { |node| node.clean(**kws) })
end

#comments ⇒ Object 



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# File 'lib/foxy/html.rb', line 90

def comments
  each_with_object([]) { |node, acc| acc << node.content.sub(/^<!--/, "").sub(/-->$/, "") if node.type == :comment }
end

#css(query) ⇒ Object 



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# File 'lib/foxy/html.rb', line 73

def css(query)
  Collection.new([self]).css(query)
end

#find(**kws) ⇒ Object 



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# File 'lib/foxy/html.rb', line 77

def find(**kws)
  isearch(**kws) { |val| return val unless val.empty? }
  nil
end

#id ⇒ Object 



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# File 'lib/foxy/html.rb', line 102

def id
  first.id
end

#isearch(tagname: nil, id: nil, cls: nil, fun: nil, css: nil) ⇒ Object 



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# File 'lib/foxy/html.rb', line 32

def isearch(tagname: nil, id: nil, cls: nil, fun: nil, css: nil)
  cls = Array(cls)
  tagname &&= tagname.downcase
  y = 0
  buff = []

  close_tagname = nil
  each do |node| # [1:-1]:
    # El orden de los if es importante para que devuelva el
    # primer y el ultimo nodo
    if y.zero? && node.tag? && (!tagname || node.tagname! == tagname) &&
       (!id || node.id! == id) && (cls - node.cls!).empty? &&
       (!fun || fun.call(node))
      # Guardamos porque pudiera ser que el parametro
      # tagname fuera nil
      close_tagname = node.tagname!
      y += 1

    elsif y && node.tag? && node.tagname! == close_tagname
      y += 1

    end

    buff << node if y > 0

    y -= 1 if y > 0 && node.closetag? && node.tagname! == close_tagname

    next unless buff && y.zero?
    yield Html.new(buff)
    buff = []
    close_tagname = nil
  end
end

#joinedtexts ⇒ Object 



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# File 'lib/foxy/html.rb', line 94

def joinedtexts
  texts.join.gsub(/[\r\n\s]+/, " ").strip
end

#rebuild ⇒ Object 



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# File 'lib/foxy/html.rb', line 82

def rebuild
  map(&:content).join
end

#search(**kws) ⇒ Object 



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# File 'lib/foxy/html.rb', line 66

def search(**kws)
  return Collection.new([self]).search(kws) if kws[:css]
  list = []
  isearch(**kws) { |val| list << val unless val.empty? }
  Collection.new(list)
end

#texts ⇒ Object 



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# File 'lib/foxy/html.rb', line 86

def texts
  each_with_object([]) { |node, acc| acc << node.content if node.type == :notag }
end

#to_s ⇒ Object 



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# File 'lib/foxy/html.rb', line 106

def to_s
  rebuild
end

#try(m, *a, &b) ⇒ Object 



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# File 'lib/foxy/html.rb', line 10

def try(m, *a, &b)
  public_send(m, *a, &b) if respond_to?(m)
end