Module: Sexpr::Grammar::Options

Included in:
Sexpr::Grammar
Defined in:
lib/sexpr/grammar/options.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#options ⇒ Object (readonly)

Returns the value of attribute options.



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# File 'lib/sexpr/grammar/options.rb', line 5

def options
  @options
end

#parser ⇒ Object (readonly)

Returns the value of attribute parser.



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# File 'lib/sexpr/grammar/options.rb', line 9

def parser
  @parser
end

#path ⇒ Object (readonly)

Returns the value of attribute path.



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# File 'lib/sexpr/grammar/options.rb', line 6

def path
  @path
end

#root ⇒ Object (readonly)

Returns the value of attribute root.



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# File 'lib/sexpr/grammar/options.rb', line 8

def root
  @root
end

#rules ⇒ Object (readonly)

Returns the value of attribute rules.



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# File 'lib/sexpr/grammar/options.rb', line 7

def rules
  @rules
end

Instance Method Details

#compile_rules(rules) ⇒ Object 



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# File 'lib/sexpr/grammar/options.rb', line 47

def compile_rules(rules)
  @rules = rules
end

#install_options(options) {|_self| ... } ⇒ Object

Yields:

  • (_self)

Yield Parameters:



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# File 'lib/sexpr/grammar/options.rb', line 11

def install_options(options)
  @options = options
  install_path
  install_rules
  install_root
  install_parser
  yield self if block_given?
end

#install_parser ⇒ Object 



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# File 'lib/sexpr/grammar/options.rb', line 39

def install_parser
  @parser = option(:parser)
  if @parser.is_a?(String) && !File.exists?(@parser)
    @parser = File.join(File.dirname(path), @parser)
  end
  @parser = Parser.factor(@parser) if @parser
end

#install_path ⇒ Object 



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# File 'lib/sexpr/grammar/options.rb', line 24

def install_path
  @path = option(:path)
end

#install_root ⇒ Object 



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# File 'lib/sexpr/grammar/options.rb', line 33

def install_root
  @root = option(:root)
  @root = rules.keys.first unless @root
  @root = root.to_sym if @root
end

#install_rules ⇒ Object 



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# File 'lib/sexpr/grammar/options.rb', line 28

def install_rules
  @rules = option(:rules) || {}
  @rules = compile_rules(@rules)
end

#option(key) ⇒ Object 



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# File 'lib/sexpr/grammar/options.rb', line 20

def option(key)
  @options[key.to_sym] || @options[key.to_s]
end