Edit Find And Replace Help

You can use meta-characters in the 'Search For' field:

.	any character except newline	+	one or more times
*	zero or more times	?	zero or one time
{n}	match exact n times	{n,m}	at least n, at most m times
~		pipe: a~	b matches a or b	-	hyphen, match a range of chars
^	beginning of a line	$	end of a line
...	one of the char's of a set	^...	negated character set
\b	word boundary	\B	word non boundary
\d	numeral 0-9	\D	non numeral ^0-9
\s	single white space	\S	single non white space
\w	A-Za-z0-9_	\W	^A-Za-z0-9_
(...)	grouping are stored as $1..$9	\.	escape a meta char

The 'Replace with' field can use $1..$9 as a backreference to parentheses of 'Search for' field.

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Example:

Search for /abc|def/ will match the word 'abc' or the word 'def'
Search for /bwiki/b will match the word 'wiki' but not the word 'jspwiki'.
Search for ^IVXMDCL+\. will match any combination of roman numeral char's followed by a period
Search for /(-?\d+)(\d{3})/ and replace with $1,$2 to insert commas in large integers.

This is the EditFindAndReplaceHelp page. More info on regular expressions, JavaRegularExpressions, and RegExp Sandbox