Class: Hypertext

Inherits:
Object
  • Object
show all
Defined in:
lib/hypertext.rb,
lib/hypertext/dsl.rb

Overview

Copyright © 2021 Michel Martens

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

Defined Under Namespace

Classes: DSL

Constant Summary collapse

ENTITIES = 
{
  "'" => ''',
  '&' => '&',
  '"' => '"',
  '<' => '&lt;',
  '>' => '&gt;',
}

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Hypertext

Returns a new instance of Hypertext.



48
49
50
51
52
53
54
 
# File 'lib/hypertext.rb', line 48

def initialize
  @dom = []

  if block_given?
    yield self
  end
end

Class Method Details

.escape(str) ⇒ Object 



44
45
46
 
# File 'lib/hypertext.rb', line 44

def self.escape(str)
  str.gsub(/['&\"<>]/, ENTITIES)
end

.render(array, indent = " ", level = 0) ⇒ Object 



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

def self.render(array, indent = "  ", level = 0)
  indentation = indent * level

  array.map do |element|
    if Array === element
      render(element, indent, level + 1)
    else
      sprintf "%s%s\n", indentation, element
    end
  end.join
end

Instance Method Details

#append(value) ⇒ Object 



56
57
58
 
# File 'lib/hypertext.rb', line 56

def append(value)
  @dom.push(*value)
end

#tag(name, attributes = {}) ⇒ Object 



60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
 
# File 'lib/hypertext.rb', line 60

def tag(name, attributes = {})
  atts = compile(attributes)

  if block_given?
    append("<#{name}#{atts}>")

    original, @dom = @dom, []
    yield
    @dom = original << @dom

    append("</#{name}>")
  else
    append("<#{name}#{atts} />")
  end
end

#text(value) ⇒ Object 



76
77
78
 
# File 'lib/hypertext.rb', line 76

def text(value)
  append(escape(value))
end

#to_a ⇒ Object 



80
81
82
 
# File 'lib/hypertext.rb', line 80

def to_a
  @dom
end

#to_s(indent = " ") ⇒ Object 



84
85
86
 
# File 'lib/hypertext.rb', line 84

def to_s(indent = "  ")
  self.class.render(@dom, indent)
end