Class: SGF::Stream

Inherits:
Object
  • Object
show all
Defined in:
lib/sgf/stream.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(sgf, error_checker) ⇒ Stream

Returns a new instance of Stream.



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# File 'lib/sgf/stream.rb', line 6

def initialize sgf, error_checker
  sgf = sgf.read if sgf.instance_of?(File)
  sgf = File.read(sgf) if File.exist?(sgf)
  error_checker.check_for_errors_before_parsing sgf
  @stream = StringIO.new clean(sgf), 'r'
end

Instance Attribute Details

#stream ⇒ Object (readonly)

Returns the value of attribute stream.



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# File 'lib/sgf/stream.rb', line 4

def stream
  @stream
end

Instance Method Details

#eof? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/sgf/stream.rb', line 13

def eof?
  stream.eof?
end

#next_character ⇒ Object 



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# File 'lib/sgf/stream.rb', line 17

def next_character
  !stream.eof? && stream.sysread(1)
end

#peek_skipping_whitespace ⇒ Object 



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# File 'lib/sgf/stream.rb', line 29

def peek_skipping_whitespace
  while char = next_character
    next if char[/\s/]
    break
  end
  rewind if char
  char
end

#read_token(format) ⇒ Object 



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# File 'lib/sgf/stream.rb', line 21

def read_token format
  property = ""
  while char = next_character and format.still_inside? char, property, self
    property << char
  end
  format.transform property
end