Module: ABNF::Parser::Controls::Nodes

Extended by:
Nodes
Included in:
Nodes
Defined in:
lib/abnf/parser/controls/nodes.rb

Instance Method Summary collapse

Instance Method Details

#alternation ⇒ Object 



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# File 'lib/abnf/parser/controls/nodes.rb', line 7

def alternation
  Node.alternation(
    Node.terminal('foo', ABNF.foo),
    ABNF.alternation,
  )
end

#concatenation ⇒ Object 



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# File 'lib/abnf/parser/controls/nodes.rb', line 14

def concatenation
  Node.concatenation(
    [
      Node.terminal('[', '"["'),
      Node.terminal('foo', ABNF.foo),
      Node.terminal(']', '"]"'),
    ],
    ABNF.concatenation,
  )
end

#factored ⇒ Object 



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# File 'lib/abnf/parser/controls/nodes.rb', line 55

def factored
  Node.alternation(
    Node.concatenation(
      [
        Node.repetition(
          [
            Node.alternation(
              Node.terminal('s', '%x61-7A'),
              'ALPHA',
            ),
            Node.alternation(
              Node.terminal('o', '%x61-7A'),
              'ALPHA',
            ),
            Node.alternation(
              Node.terminal('m', '%x61-7A'),
              'ALPHA',
            ),
            Node.alternation(
              Node.terminal('e', '%x61-7A'),
              'ALPHA',
            ),
          ],
          '1*ALPHA',
        ),

        Node.terminal('-', '"-"'),

        Node.repetition(
          [
            Node.alternation(
              Node.terminal('t', '%x61-7A'),
              'ALPHA',
            ),
            Node.alternation(
              Node.terminal('e', '%x61-7A'),
              'ALPHA',
            ),
            Node.alternation(
              Node.terminal('x', '%x61-7A'),
              'ALPHA',
            ),
            Node.alternation(
              Node.terminal('t', '%x61-7A'),
              'ALPHA',
            ),
          ],
          '1*ALPHA',
        ),
      ],
      '1*ALPHA "-" 1*ALPHA',
    ),
    '(1*ALPHA "-" 1*ALPHA) / "~"',
  )
end

#repetition ⇒ Object 



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# File 'lib/abnf/parser/controls/nodes.rb', line 25

def repetition
  abnf = %{#{ABNF.foo} / #{ABNF.bar} / #{ABNF.baz}}
  regexp = %r{foo|bar|baz}

  Node.repetition(
    [
      Node.alternation(Node.terminal('foo', ABNF.foo), abnf),
      Node.alternation(Node.terminal('bar', ABNF.foo), abnf),
      Node.alternation(Node.terminal('baz', ABNF.foo), abnf),
    ],
    "1*( #{abnf} )",
  )
end

#terminal ⇒ Object 



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# File 'lib/abnf/parser/controls/nodes.rb', line 39

def terminal
  Node.terminal 'foo', ABNF.foo
end

#unfactored(abnf: nil, text: nil) ⇒ Object Also known as: example, string 



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# File 'lib/abnf/parser/controls/nodes.rb', line 43

def unfactored abnf: nil, text: nil
  abnf ||= ABNF.example
  text ||= 'some-text'

  pattern = Rules.regexp_pattern.regexp
  match_data = pattern.match text

  Node.pattern_match match_data, abnf
end