john-users - rules with ":"

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Date: Sun, 7 Mar 2010 10:50:45 +0100
From: "websiteaccess@...il.com" <websiteaccess@...il.com>
To: john-users@...ts.openwall.com
Subject: rules with ":"

Hi

I use JTR 1.7.5 (jumbo patch + mpirun) on Os X.

  I try this rule :

 :[:cu] A0,[0-9]\0\0, Az,[0-9]\0\0,     works fine (able to crack 
password 000john000 )
but
 [:cu] A0,[0-9]\0\0, Az,[0-9]\0\0,   returns me an error
and 
 :[cu] A0,[0-9]\0\0, Az,[0-9]\0\0,  works but don't crack 000john000

 in the jtr's doc rules, ":" = try words as they are (my dictionay is 
all lowercase), if I'm right
 the following rule ":[:cu] A0,[0-9]\0\0, Az,[0-9]\0\0," do 2 times the 
same works about lower case.

  why   :[cu] A0,[0-9]\0\0, Az,[0-9]\0\0,  but don't crack 
"000john000"   

 In my mind :[cu]  =    ":" try words as is "john" then convert to 
"John"  then convert "JOHN"


 Thanks,

 W.A.