class FormatParser::EXIFParser::IOExt
EXIFR kindly requests the presence of a few more methods than what our IOConstraint
is willing to provide, but they can be derived from the available ones
Public Instance Methods
readbyte()
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# File lib/parsers/exif_parser.rb, line 20 def readbyte if byte = read(1) byte.unpack('C').first end end
Also aliased as: getbyte
seek(n, seek_mode = IO::SEEK_SET)
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# File lib/parsers/exif_parser.rb, line 26 def seek(n, seek_mode = IO::SEEK_SET) io = __getobj__ case seek_mode when IO::SEEK_SET io.seek(n) when IO::SEEK_CUR io.seek(io.pos + n) when IO::SEEK_END io.seek(io.size + n) else raise Errno::EINVAL end end