[hobbit] hobbit-clients.cfg

Werner (gmail Lists) wxxx333 at gmail.com
Fri Aug 25 19:21:36 CEST 2006


Greg,


> Just curious -- in other regex implementations you have to "escape" the
> dot if you want it to match a literal period (dot) instead of any
> character.  Does PCRE work the same way?  I am always getting bit by
> this when I am trying to match IP addresses and domain names...


Ya you have to escape it if you wanna be sure it's a "DOT". You can try
it with pcretest on your shell


[root at hera ~/netdisco]# pcretest 
PCRE version 4.5 01-December-2003

  re> /\d\.\d.\d/
data> 1.234    
 0: 1.234
data> 123.4
No match
data> 1.2.3
 0: 1.2.3
data> 12345
No match


	So you can see that "\." will match exactly a DOT not any other
character as "." will do.

	-Werner



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