Class: O::Parser

Inherits:
Object
  • Object
show all
Defined in:
lib/o/parser.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(content) ⇒ Parser

Returns a new instance of Parser.



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# File 'lib/o/parser.rb', line 12

def initialize content
  @content = content
end

Instance Attribute Details

#content ⇒ Object (readonly)

Returns the value of attribute content.



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# File 'lib/o/parser.rb', line 3

def content
  @content
end

Class Method Details

.compile(content) ⇒ Object 



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# File 'lib/o/parser.rb', line 6

def compile content
  parser = Parser.new content
  parser.compile
end

Instance Method Details

#compile ⇒ Object 



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# File 'lib/o/parser.rb', line 16

def compile
  script = ""
  indent_counts = 0
  block_start = false

  scan do |token, statement|
    case token
    when :block_start
      block_start = true
      statement = statement.sub(":", " do")
      script << statement << "\n"
    when :statement
      script << statement << "\n"
    when :indent
      indent_counts += 1
      script << "\t"*indent_counts
    when :undent
      script << "\t"*indent_counts
    when :dedent
      if block_start
        block_start = false
        script << "\t"*(indent_counts-1) + "end\n"
      else
        script << "\t"*(indent_counts-1)
      end
      indent_counts -= 1
    end
  end
  script
end