Class: Seafoam::Binary::IOBinaryReader

Inherits:
Object
  • Object
show all
Defined in:
lib/seafoam/binary/io_binary_reader.rb

Overview

An adapter to read binary values from an IO stream.

Instance Method Summary collapse

Constructor Details

#initialize(io) ⇒ IOBinaryReader

Returns a new instance of IOBinaryReader.



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# File 'lib/seafoam/binary/io_binary_reader.rb', line 5

def initialize(io)
  @io = io
end

Instance Method Details

#eof? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/seafoam/binary/io_binary_reader.rb', line 83

def eof?
  @io.eof?
end

#peek_sint8 ⇒ Object 



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# File 'lib/seafoam/binary/io_binary_reader.rb', line 49

def peek_sint8
  byte = @io.read(1).unpack1('c')
  @io.ungetbyte byte
  byte
end

#read_bytes(length) ⇒ Object 



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# File 'lib/seafoam/binary/io_binary_reader.rb', line 13

def read_bytes(length)
  @io.read(length)
end

#read_float32 ⇒ Object 



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# File 'lib/seafoam/binary/io_binary_reader.rb', line 21

def read_float32
  @io.read(4).unpack1('g')
end

#read_float64 ⇒ Object 



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# File 'lib/seafoam/binary/io_binary_reader.rb', line 17

def read_float64
  @io.read(8).unpack1('G')
end

#read_sint16 ⇒ Object 



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# File 'lib/seafoam/binary/io_binary_reader.rb', line 33

def read_sint16
  @io.read(2).unpack1('s>')
end

#read_sint32 ⇒ Object 



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# File 'lib/seafoam/binary/io_binary_reader.rb', line 29

def read_sint32
  @io.read(4).unpack1('l>')
end

#read_sint64 ⇒ Object 



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# File 'lib/seafoam/binary/io_binary_reader.rb', line 25

def read_sint64
  @io.read(8).unpack1('q>')
end

#read_sint8 ⇒ Object 



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# File 'lib/seafoam/binary/io_binary_reader.rb', line 41

def read_sint8
  @io.read(1).unpack1('c')
end

#read_uint16 ⇒ Object 



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# File 'lib/seafoam/binary/io_binary_reader.rb', line 37

def read_uint16
  @io.read(2).unpack1('S>')
end

#read_uint8 ⇒ Object 



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# File 'lib/seafoam/binary/io_binary_reader.rb', line 45

def read_uint8
  @io.readbyte
end

#read_utf8(length) ⇒ Object 



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# File 'lib/seafoam/binary/io_binary_reader.rb', line 9

def read_utf8(length)
  read_bytes(length).force_encoding Encoding::UTF_8
end

#skip(count) ⇒ Object 



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# File 'lib/seafoam/binary/io_binary_reader.rb', line 79

def skip(count)
  @io.seek count, IO::SEEK_CUR
end

#skip_float32(count = 1) ⇒ Object 



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# File 'lib/seafoam/binary/io_binary_reader.rb', line 59

def skip_float32(count = 1)
  skip count * 4
end

#skip_float64(count = 1) ⇒ Object 



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# File 'lib/seafoam/binary/io_binary_reader.rb', line 55

def skip_float64(count = 1)
  skip count * 8
end

#skip_int16(count = 1) ⇒ Object 



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# File 'lib/seafoam/binary/io_binary_reader.rb', line 71

def skip_int16(count = 1)
  skip count * 2
end

#skip_int32(count = 1) ⇒ Object 



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# File 'lib/seafoam/binary/io_binary_reader.rb', line 67

def skip_int32(count = 1)
  skip count * 4
end

#skip_int64(count = 1) ⇒ Object 



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# File 'lib/seafoam/binary/io_binary_reader.rb', line 63

def skip_int64(count = 1)
  skip count * 8
end

#skip_int8(count = 1) ⇒ Object 



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# File 'lib/seafoam/binary/io_binary_reader.rb', line 75

def skip_int8(count = 1)
  skip count
end