Class: HamdownCore::FilterParser

Inherits:
Object
  • Object
show all
Defined in:
lib/hamdown_core/filter_parser.rb

Instance Method Summary collapse

Constructor Details

#initialize(indent_tracker) ⇒ FilterParser

Returns a new instance of FilterParser.



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# File 'lib/hamdown_core/filter_parser.rb', line 6

def initialize(indent_tracker)
  @ast = nil
  @indent_level = nil
  @indent_tracker = indent_tracker
end

Instance Method Details

#append(line) ⇒ Object 



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# File 'lib/hamdown_core/filter_parser.rb', line 23

def append(line)
  indent, text = @indent_tracker.split(line)
  if text.empty?
    @ast.texts << ''
    return
  end
  indent_level = indent.size

  if @indent_level
    if indent_level < @indent_level
      # Finish filter
      @indent_level = nil
      ast = @ast
      @ast = nil
      return ast
    end
  elsif indent_level > @indent_tracker.current_level
    # Start filter
    @indent_level = indent_level
  else
    # Empty filter
    @ast = nil
    return nil
  end

  text = line[@indent_level..-1]
  @ast.texts << text
  nil
end

#enabled? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/hamdown_core/filter_parser.rb', line 12

def enabled?
  !@ast.nil?
end

#finish ⇒ Object 



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# File 'lib/hamdown_core/filter_parser.rb', line 53

def finish
  @ast
end

#start(name, filename, lineno) ⇒ Object 



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# File 'lib/hamdown_core/filter_parser.rb', line 16

def start(name, filename, lineno)
  @ast = Ast::Filter.new
  @ast.name = name
  @ast.filename = filename
  @ast.lineno = lineno
end