Regular expressions additional help ... don't hesitate to add your own examples / comments here

Regular expressions quick reference :

Here is a listing of the most popular regular expression patterns.

Rule	Syntax
Exactly one occurence of x	x
At least one occurence of x	x+
0 or many occurences of x	x*
0 or 1 occurence of x	x?
Escape character	\
Any single character	.
One character in a predefined set	[list-of-characters] ... examples : [ABCD], [012345789]
One character in a character range	[character1-character2] ... examples : [0-9], [a-zA-Z] ...
Any character except those contained in a predefined set	[^list-of-characters] ... examples : [^ABCD], [^0-9]
Tab	\t
New line	\n
Carriage return	\r
Beginning of the line	^
End of the line	$

Examples :

Example	Syntax
All filenames ending with ".html"	^.*\.html$
All filenames containing "client"	^.client.$
All folders containing "_svn"	^.\\_svn\\.$