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About-NetAddr-IP.txt	2.25 MB	View DL Edit
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Edit file: /home/.cpan/build/NetAddr-IP-4.079-0/About-NetAddr-IP.txt

About NetAddr::IP

At some point a user wrote and asked the difference between 
NetAddr::IP and NetAddr::IP::Lite

NetAddr::IP::Lite contains only "basic" IP address operations to create IP objects, 
print or return their characteristics, do basic IP arithmetic, etc... a lot of 
which is implemented in XS in its sub-classes, whereas NetAddr::IP contains complex 
operations on nets, net ranges , etc... all implemented in perl. If you don't use 
those, you don't need the overhead of loading them, the autoloader, etc... 
Likewise, NetAddr::IP::Utilities and NetAddr::IP::InetBase exist to provide 
"very basic" ipv4 and ipv6 utilities without the overhead of their superclasses 
for module writers need to work with ipv4 & ipv6 "numbers" but do not need object 
oriented overhead or functionality.

Take a brief look at the SRC of each to see what is supported in each without 
having to wade through the man pages to figure out where the overlap is. 
Basically the modules are broken down into these functional areas that cover 
various aspects of manipulating IP numbers.

NetAddr::IP::InetBase mostly XS
net to text conversion routines
        inet_aton
        inet_ntoa
        ipv6_aton
        ipv6_ntoa
        ipv6_n2x
        ipv6_n2d
        inet_any2n
        inet_n2dx
        inet_n2ad
        inet_ntop
        inet_pton
	etc...

NetAddr::IP::Util adds to above, mostly XS
	 above + ip arithmetic
        addconst
        add128
        sub128
        bin2bcd
        bcd2bin
        ipv4to6
        mask4to6
        ipanyto6
        maskanyto6
        ipv6to4
        bin2bcdn
        bcdn2txt
        bcdn2bin
        comp128
        naip_gethostbyname (platform/socket independent)
	etc...

NetAddr::IP::Lite adds to above
mostly 1 or 2 line functions and/or calls to sub classes
	all the "new" functions
	all overload functions ( + - ++ -- = print eq ne == > >= < <= cmp)
	  "copy"  (clone rather than reference)
  return of IP parameters such as
	  broadcast
	  network
	  addr
	  mask
	  masklen
	  bits
	  version
	  cidr
	  aton
	  range
	  numeric
	  bigint
	  contains
	  within
	  first
	  last
	  nth
	  num

NetAddr::IP adds to above
	  wildcard
	  short
	  full
	  full6
	  splitref
	  split
	  rsplit
	  hostenum
	  compact
	  compactref
	  coalesce
	  re
	  re6

enjoy...

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