Class: HtmlBeautifier::Parser

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

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(&blk) ⇒ Parser

Returns a new instance of Parser.



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

def initialize(&blk)
  @maps = []
  if block_given?
    self.instance_eval(&blk)
  end
end

Class Method Details

.debug(match, method) ⇒ Object 



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# File 'lib/htmlbeautifier/parser.rb', line 10

def self.debug(match, method)
  if defined? @debug_block
    @debug_block.call(match, method)
  end
end

.debug_block(&blk) ⇒ Object 



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

def self.debug_block(&blk)
  @debug_block = blk
end

Instance Method Details

#dispatch(scanner, receiver) ⇒ Object 



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# File 'lib/htmlbeautifier/parser.rb', line 34

def dispatch(scanner, receiver)
  @maps.each do |pattern, method|
    if scanner.scan(pattern)
      params = []
      i = 1
      while scanner[i]
        params << scanner[i]
        i += 1
      end
      params = [scanner[0]] if params.empty?
      self.class.debug(scanner[0], method)
      receiver.__send__(method, *params)
      return
    end
  end
  raise "Unmatched sequence #{match.inspect}"
end

#map(pattern, method) ⇒ Object 



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# File 'lib/htmlbeautifier/parser.rb', line 23

def map(pattern, method)
  @maps << [pattern, method]
end

#scan(subject, receiver) ⇒ Object 



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# File 'lib/htmlbeautifier/parser.rb', line 27

def scan(subject, receiver)
  scanner = StringScanner.new(subject)
  until scanner.eos?
    dispatch(scanner, receiver)
  end
end