Class: EdifactConverter::EDI2XML11::PositionIO

Inherits:
Object
  • Object
show all
Defined in:
lib/edifact_converter/edi2xml11/position_io.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(file) ⇒ PositionIO 



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# File 'lib/edifact_converter/edi2xml11/position_io.rb', line 8

def initialize(file)
  @file = file
  @file.set_encoding (Encoding::ASCII_8BIT)
  @column = @line = 0
  @lines = []
end

Instance Attribute Details

#column ⇒ Object

Returns the value of attribute column.



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# File 'lib/edifact_converter/edi2xml11/position_io.rb', line 6

def column
  @column
end

#file ⇒ Object

Returns the value of attribute file.



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# File 'lib/edifact_converter/edi2xml11/position_io.rb', line 6

def file
  @file
end

#line ⇒ Object

Returns the value of attribute line.



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# File 'lib/edifact_converter/edi2xml11/position_io.rb', line 6

def line
  @line
end

#lines ⇒ Object

Returns the value of attribute lines.



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# File 'lib/edifact_converter/edi2xml11/position_io.rb', line 6

def lines
  @lines
end

Instance Method Details

#binread(amount) ⇒ Object 



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# File 'lib/edifact_converter/edi2xml11/position_io.rb', line 60

def binread(amount)
  @column += amount
  @file.read amount
end

#close ⇒ Object 



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# File 'lib/edifact_converter/edi2xml11/position_io.rb', line 69

def close
  @file.close
end

#position ⇒ Object 



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# File 'lib/edifact_converter/edi2xml11/position_io.rb', line 65

def position
  Position.new @line, @column
end

#read(amount = 1) ⇒ Object 



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# File 'lib/edifact_converter/edi2xml11/position_io.rb', line 15

def read(amount = 1)
  text = ''
  while(amount > 0)
    nextchar = @file.getc
    raise EOFError.new unless nextchar
    nextchar.encode!(Encoding::UTF_8, Encoding::ISO_8859_1) #force_encoding Encoding::ISO_8859_1
    case nextchar
    when /\n/
      @lines[@line] = @column
      @line += 1
      @column = 0
    when /\r/
      @column += 1
    else
      text << nextchar
      amount -= 1
      @column += 1
    end
  end
  text
end

#unread(amount = 1) ⇒ Object 



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# File 'lib/edifact_converter/edi2xml11/position_io.rb', line 37

def unread(amount = 1)
  while amount > 0
    @file.pos -= 1
    old_pos = @file.pos
    nextchar = @file.getc
    # Hack for windows
    if @file.pos - old_pos > 1
      @file.pos -= 3
      nextchar = @file.getc
    end
    @file.pos -= 1
    case nextchar
    when /\r/
    when /\n/
      @line -= 1
      @column = @lines[@line]
    else
      @column -= 1
      amount -= 1
    end
  end
end