Class: TagStatement

Inherits:
Node
  • Object
show all
Defined in:
lib/emerald/nodes/tag_statement.rb

Overview

A tag

Constant Summary collapse

VOID_TAGS =

w3c.github.io/html/syntax.html#void-elements

(
  "area base br col embed hr img input link " +
  "menuitem meta param source track wbr"
).split(/\s+/)

Instance Method Summary collapse

Instance Method Details

#class_attribute ⇒ Object 



31
32
33
34
35
36
37
38
39
40
41
42
 
# File 'lib/emerald/nodes/tag_statement.rb', line 31

def class_attribute
  unless classes.empty?
    class_names = classes
      .elements
      .map{ |c| c.name.text_value }
      .join(' ')

    " class=\"#{class_names}\""
  else
    ''
  end
end

#closing_tag(_context) ⇒ Object 



75
76
77
 
# File 'lib/emerald/nodes/tag_statement.rb', line 75

def closing_tag(_context)
  "</#{tag.text_value}>"
end

#id_attribute ⇒ Object 



44
45
46
47
48
49
50
 
# File 'lib/emerald/nodes/tag_statement.rb', line 44

def id_attribute
  unless identifier.empty?
    " id=\"#{identifier.name.text_value}\""
  else
    ''
  end
end

#opening_tag(context) ⇒ Object 



52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
 
# File 'lib/emerald/nodes/tag_statement.rb', line 52

def opening_tag(context)
  "<#{tag.text_value}" +
    id_attribute +
    class_attribute +
    (
      if !attributes.empty?
        ' ' + attributes.to_html(context)
      else
        ''
      end
    ) + (
      if void_tag?
        ' />'
      else
        '>'
      end
    )
end

#to_html(context) ⇒ Object 



15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
 
# File 'lib/emerald/nodes/tag_statement.rb', line 15

def to_html(context)
  if void_tag?
    opening_tag(context)
  else
    opening_tag(context) +
      (
        if !body.empty?
          body.to_html(context)
        else
          ''
        end
      ) +
      closing_tag(context)
  end
end

#void_tag? ⇒ Boolean

Returns:

  • (Boolean) 


71
72
73
 
# File 'lib/emerald/nodes/tag_statement.rb', line 71

def void_tag?
  VOID_TAGS.include? tag.text_value
end