From: Edward QU <lists@...>
Date: 2012-06-17T13:20:50+09:00
Subject: regular expression to get IPCONFIG information

Dear all
I want to use ruby regular expression to get ipconfig information from a
string. I wrote some code, but it is not works well. would anybody help
me, thanks!

the coding is like that


$msdos="ipconfig /all"
str_ipcfg=eval("`"+$msdos+"`")

str_ipcfg.scan %r{
  ^ \S [^:]* : \s* $
  (?:
  ^ \s+ [^:]+ : [^:]+ $ [\n\r]+
  )*
  }x do |adapter|
    p adapter


1. if use $msdos="ipconfig", get a string like the following:


"Windows IP Configuration\n\n\nWireless LAN adapter   2:\n\n   Media
State . . . . . . . . . . . : Media disconnected\n   Connection-specific
DNS Suffix  . : \n\n"
"Ethernet adapter Bluetooth :\n\n   Media State . . . . . . . . . . . :
Media disconnected\n   Connection-specific DNS Suffix  . : \n\n"
"Wireless LAN adapter :\n\n   Connection-specific DNS Suffix  . : \n
IPv4 Address. . . . . . . . . . . : 192.168.1.50\n   Subnet Mask . . . .
. . . . . . . : 255.255.255.0\n   Default Gateway . . . . . . . . . :
192.168.1.1\n"

Process finished with exit code 0

2. if use "$msdos="ipconfig /all", the string like that:

"Wireless LAN adapter  2:\n\n   Media State . . . . . . . . . . . :
Media disconnected\n   Connection-specific DNS Suffix  . : \n
Description . . . . . . . . . . . : Microsoft Virtual WiFi Miniport
Adapter\n   Physical Address. . . . . . . . . : 16-2F-68-CB-81-37\n
DHCP Enabled. . . . . . . . . . . : Yes\n   Autoconfiguration Enabled .
. . . : Yes\n\n"
"Ethernet adapter Bluetooth :\n\n   Media State . . . . . . . . . . . :
Media disconnected\n   Connection-specific DNS Suffix  . : \n
Description . . . . . . . . . . . : Bluetooth Device (Personal Area
Network)\n   Physical Address. . . . . . . . . : 74-2F-68-CC-41-BF\n
DHCP Enabled. . . . . . . . . . . : Yes\n   Autoconfiguration Enabled .
. . . : Yes\n\n"
"Wireless LAN adapter :\n\n   Connection-specific DNS Suffix  . : \n
Description . . . . . . . . . . . : Atheros AR9485WB-EG Wireless Network
Adapter\n   Physical Address. . . . . . . . . : 74-2F-68-CB-81-37\n
DHCP Enabled. . . . . . . . . . . : Yes\n   Autoconfiguration Enabled .
. . . : Yes\n   IPv4 Address. . . . . . . . . . . :
192.168.1.50(Preferred) \n   Subnet Mask . . . . . . . . . . . :
255.255.255.0\n"

my question is : where is wrong in my 2ed regular express, causing the
string is not complete, i could not get the whole ipconfig information?
because the gateway, dhcp, dns information is after the subnet mask
information.

many thanks!
Have a nice day.
Edward

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