Module: Zlib

Defined in:
lib/pr/zlib.rb

Defined Under Namespace

Classes: BufError, DataError, Deflate, Error, GzipFile, GzipReader, GzipWriter, Inflate, MemError, NeedDict, StreamEnd, StreamError, VersionError, ZStream, ZStreamFuncs

Constant Summary collapse

RUBY_ZLIB_VERSION = 
'0.6.0'
PR_ZLIB_VERSION = 
'1.0.0'
VERSION = 
RUBY_ZLIB_VERSION
ZLIB_VERSION = 
ZLIB_VERSION
BINARY = 
Z_BINARY
ASCII = 
Z_ASCII
UNKNOWN = 
Z_UNKNOWN
NO_COMPRESSION = 
Z_NO_COMPRESSION
BEST_SPEED = 
Z_BEST_SPEED
BEST_COMPRESSION = 
Z_BEST_COMPRESSION
DEFAULT_COMPRESSION = 
Z_DEFAULT_COMPRESSION
FILTERED = 
Z_FILTERED
HUFFMAN_ONLY = 
Z_HUFFMAN_ONLY
DEFAULT_STRATEGY = 
Z_DEFAULT_STRATEGY
MAX_WBITS = 
MAX_WBITS
DEF_MEM_LEVEL = 
DEF_MEM_LEVEL
MAX_MEM_LEVEL = 
MAX_MEM_LEVEL
NO_FLUSH = 
Z_NO_FLUSH
SYNC_FLUSH = 
Z_SYNC_FLUSH
FULL_FLUSH = 
Z_FULL_FLUSH
FINISH = 
Z_FINISH
OS_CODE = 
OS_CODE
OS_MSDOS = 
0x00
OS_AMIGA = 
0x01
OS_VMS = 
0x02
OS_UNIX = 
0x03
OS_ATARI = 
0x05
OS_OS2 = 
0x06
OS_MACOS = 
0x07
OS_TOPS20 = 
0x0a
OS_WIN32 = 
0x0b
ZSTREAM_FLAG_READY = 
0x1
ZSTREAM_FLAG_IN_STREAM = 
0x2
ZSTREAM_FLAG_FINISHED = 
0x4
ZSTREAM_FLAG_CLOSING = 
0x8
ZSTREAM_FLAG_UNUSED = 
0x10
ZSTREAM_INITIAL_BUFSIZE = 
1024
ZSTREAM_AVAIL_OUT_STEP_MAX = 
16384
ZSTREAM_AVAIL_OUT_STEP_MIN = 
2048
DeflateFuncs = 
ZStreamFuncs.new(:deflateReset, :deflateEnd, :deflate)
InflateFuncs = 
ZStreamFuncs.new(:inflateReset, :inflateEnd, :inflate)

Class Method Summary collapse

Class Method Details

.adler32(string = nil, adler = nil) ⇒ Object 



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# File 'lib/pr/zlib.rb', line 1510

def adler32(string=nil, adler=nil)
  if adler
    [adler].pack('L')  # check range
    sum = adler
  elsif string.nil?
    sum = 0
  else
    sum = Rbzlib.adler32(0,nil)
  end

  if string.nil?
    sum = Rbzlib.adler32(sum,nil)
  else
    sum = Rbzlib.adler32(sum,string,string.length)
  end
  sum
end

.crc32(string = nil, adler = nil) ⇒ Object 



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# File 'lib/pr/zlib.rb', line 1528

def crc32(string=nil, adler=nil)
  if adler
    [adler].pack('L') # check range
    sum = adler
  elsif string.nil?
    sum = 0
  else
    sum = Rbzlib.crc32(0,nil)
  end

  if string.nil?
    sum = Rbzlib.crc32(sum,nil)
  else
    sum = Rbzlib.crc32(sum,string,string.length)
  end
  sum
end

.crc_table ⇒ Object 



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# File 'lib/pr/zlib.rb', line 1546

def crc_table
  get_crc_table
end

.zlib_version ⇒ Object 



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# File 'lib/pr/zlib.rb', line 1506

def zlib_version
  zlibVersion()
end