Module: Phlexing::Helpers

Included in:
Converter
Defined in:
lib/phlexing/helpers.rb

Constant Summary collapse

KNOWN_ELEMENTS = 
Phlex::HTML::VOID_ELEMENTS.values + Phlex::HTML::STANDARD_ELEMENTS.values

Instance Method Summary collapse

Instance Method Details

#do_block_end(level = 0) ⇒ Object 



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# File 'lib/phlexing/helpers.rb', line 52

def do_block_end(level = 0)
  "#{indent(level)}end\n"
end

#do_block_start ⇒ Object 



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# File 'lib/phlexing/helpers.rb', line 48

def do_block_start
  " do\n"
end

#double_quote(string) ⇒ Object 



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# File 'lib/phlexing/helpers.rb', line 19

def double_quote(string)
  "\"#{string}\""
end

#element_node?(node) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/phlexing/helpers.rb', line 72

def element_node?(node)
  node.is_a?(Nokogiri::XML::Element)
end

#erb_comment?(node) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/phlexing/helpers.rb', line 102

def erb_comment?(node)
  node.attributes["comment"]
end

#erb_interpolation?(node) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/phlexing/helpers.rb', line 88

def erb_interpolation?(node)
  first = node.children.first

  erb_node?(node) &&
    node.children.one? &&
    first.children.none? &&
    text_node?(first) &&
    node.attributes["interpolated"]
end

#erb_node?(node) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/phlexing/helpers.rb', line 68

def erb_node?(node)
  node.is_a?(Nokogiri::XML::Element) && node.name == "erb"
end

#erb_safe_output?(node) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/phlexing/helpers.rb', line 98

def erb_safe_output?(node)
  erb_interpolation?(node) && node.text.start_with?("=")
end

#indent(level) ⇒ Object 



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# File 'lib/phlexing/helpers.rb', line 9

def indent(level)
  return "" if level == 1

  "  " * level
end

#multi_line_block(level) ⇒ Object 



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# File 'lib/phlexing/helpers.rb', line 56

def multi_line_block(level)
  @buffer << " do\n"
  yield
  @buffer << ("#{indent(level)}end\n")
end

#multiple_children?(node) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/phlexing/helpers.rb', line 80

def multiple_children?(node)
  node.children.length > 1
end

#node_name(node) ⇒ Object 



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# File 'lib/phlexing/helpers.rb', line 38

def node_name(node)
  return "template_tag" if node.name == "template"

  name = node.name.gsub("-", "_")

  @custom_elements << name unless KNOWN_ELEMENTS.include?(name)

  name
end

#percent_literal_string(string) ⇒ Object 



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# File 'lib/phlexing/helpers.rb', line 27

def percent_literal_string(string)
  "%(#{string})"
end

#quote(string) ⇒ Object 



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# File 'lib/phlexing/helpers.rb', line 31

def quote(string)
  return double_quote(string) unless string.include?('"')
  return single_quote(string) unless string.include?("'")

  percent_literal_string(string)
end

#siblings?(node) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/phlexing/helpers.rb', line 84

def siblings?(node)
  multiple_children?(node.parent)
end

#single_line_block ⇒ Object 



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# File 'lib/phlexing/helpers.rb', line 62

def single_line_block
  @buffer << " { "
  yield
  @buffer << " }\n"
end

#single_quote(string) ⇒ Object 



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# File 'lib/phlexing/helpers.rb', line 23

def single_quote(string)
  "'#{string}'"
end

#text_node?(node) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/phlexing/helpers.rb', line 76

def text_node?(node)
  node.is_a?(Nokogiri::XML::Text)
end

#whitespace(options) ⇒ Object 



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# File 'lib/phlexing/helpers.rb', line 15

def whitespace(options)
  options.fetch(:whitespace, true) ? "whitespace\n" : ""
end