Class: Web::Unit::HtmlElem

Inherits:
Object show all
Defined in:
lib/web/unit/htmlelem.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(tag, ah = {}) ⇒ HtmlElem

Returns a new instance of HtmlElem.



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# File 'lib/web/unit/htmlelem.rb', line 14

def initialize( tag, ah={} )
  @children = []
  @tag = tag
  @attrs = ah
  @data = ''
  @array = []
  @name = ah['name'] if ah
end

Instance Attribute Details

#array ⇒ Object (readonly)

Returns the value of attribute array.



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# File 'lib/web/unit/htmlelem.rb', line 12

def array
  @array
end

#attrs ⇒ Object (readonly)

Returns the value of attribute attrs.



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# File 'lib/web/unit/htmlelem.rb', line 12

def attrs
  @attrs
end

#children ⇒ Object (readonly)

Returns the value of attribute children.



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# File 'lib/web/unit/htmlelem.rb', line 12

def children
  @children
end

#data ⇒ Object (readonly)

Returns the value of attribute data.



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# File 'lib/web/unit/htmlelem.rb', line 12

def data
  @data
end

#name ⇒ Object (readonly)

Returns the value of attribute name.



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# File 'lib/web/unit/htmlelem.rb', line 12

def name
  @name
end

#tag ⇒ Object (readonly)

Returns the value of attribute tag.



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# File 'lib/web/unit/htmlelem.rb', line 12

def tag
  @tag
end

Instance Method Details

#append(data) ⇒ Object 



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# File 'lib/web/unit/htmlelem.rb', line 23

def append( data )
  if data.is_a?( HtmlElem )
    @children << data
  else
    @data  << data
  end
  @array << data
end

#extract ⇒ Object 



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# File 'lib/web/unit/htmlelem.rb', line 32

def extract
  data = ''
  @array.each do |e|
    if e.is_a?( String )
      data << " #{e} "
    elsif e.is_a?( HtmlElem )
      data << e.extract
    end
  end
  data.squeeze( ' ' ).strip
end

#find(tag) ⇒ Object

— HtmlElem#find(tag)

return an Array of HtmlElems, which have ((|tag|)).



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# File 'lib/web/unit/htmlelem.rb', line 56

def find( tag )
  a = []
  a.push self if @tag == tag
  @children.each do |c|
    a = a + c.find( tag )
  end
  a
end

#has?(elem) ⇒ Boolean

— HtmlElem#has?(elem)

return true, when self have ((|elem|)) as child.
otherwise, return false.
((|elem|)) should be a HtmlElem or a String.

Returns:

  • (Boolean) 


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# File 'lib/web/unit/htmlelem.rb', line 99

def has?( elem )
  if elem.kind_of?( HtmlElem )
    @children.include?( elem )
  elsif elem.instance_of?( String )
    @array.include?( elem )
  else
    false
  end
end

#inspect ⇒ Object 



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# File 'lib/web/unit/htmlelem.rb', line 44

def inspect
  return "<#toplevel>" if @tag == nil
  as = ''
  attrs.each{ |k,v| as << " #{k}=#{v}" }
  "<#{@tag+as}>:#{data}:"
end

#print(indent = '') ⇒ Object

— HtmlElem#print(indent=”) – FOR TEST USE ONLY

print tree structure, from self to lower.



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# File 'lib/web/unit/htmlelem.rb', line 114

def print( indent='' ) # not tested :-(
  puts indent + inspect
  @children.each do |c|
    c.print( indent + '  ' )
  end
end

#readlink(str) ⇒ Object

— HtmlElem#readlink(str)

return a Response, gotten with reading a Link have ((|str|)).
raise ElemNotFound exception, when no Links found.

Raises:



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# File 'lib/web/unit/htmlelem.rb', line 85

def readlink( str )
  self.find( 'a' ).each do |link|
    return link.read if link.data == str
  end
  raise ElemNotFound, "no Links have '#{str}' as data."
end

#search(data) ⇒ Object

— HtmlElem#search(data)

return an Array of HtmlElems, which have ((|data|)).



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# File 'lib/web/unit/htmlelem.rb', line 70

def search( data )
  a = []
  a.push self if @data == data
  @children.each do |c|
    a = a + c.search( data )
  end
  a
end