CSV::Parser::InputsScanner

 
               # File csv/parser.rb, line 43
def initialize(inputs, encoding, chunk_size: 8192)
  @inputs = inputs.dup
  @encoding = encoding
  @chunk_size = chunk_size
  @last_scanner = @inputs.empty?
  @keeps = []
  read_chunk
end
            

 
               # File csv/parser.rb, line 75
def eos?
  @scanner.eos?
end
            

 
               # File csv/parser.rb, line 93
def keep_back
  start, buffer = @keeps.pop
  if buffer
    string = @scanner.string
    keep = string[start, string.size - start]
    if keep and not keep.empty?
      @inputs.unshift(StringIO.new(keep))
      @last_scanner = false
    end
    @scanner = StringScanner.new(buffer)
  else
    @scanner.pos = start
  end
end
            

 
               # File csv/parser.rb, line 108
def keep_drop
  @keeps.pop
end
            

 
               # File csv/parser.rb, line 83
def keep_end
  start, buffer = @keeps.pop
  keep = @scanner.string[start, @scanner.pos - start]
  if buffer
    buffer << keep
    keep = buffer
  end
  keep
end
            

 
               # File csv/parser.rb, line 79
def keep_start
  @keeps.push([@scanner.pos, nil])
end
            

 
               # File csv/parser.rb, line 112
def rest
  @scanner.rest
end
            

 
               # File csv/parser.rb, line 52
def scan(pattern)
  value = @scanner.scan(pattern)
  return value if @last_scanner

  if value
    read_chunk if @scanner.eos?
    return value
  else
    nil
  end
end
            

 
               # File csv/parser.rb, line 64
def scan_all(pattern)
  value = @scanner.scan(pattern)
  return value if @last_scanner

  return nil if value.nil?
  while @scanner.eos? and read_chunk and (sub_value = @scanner.scan(pattern))
    value << sub_value
  end
  value
end