ED Regex Syntax

ED Regex Syntax:

a|b    Matches a or b
gr(a|e)y    Matches gray or grey
.    Matches any single character
[abc]    Matches a single character a, b or c
[^abc]    Matches any single character except a, b or c
[a-z]    Matches a single charactor in the range a to z
[a-zA-Z]    Matches a single charactor in the range a to z or A to Z
^    Matches the start of the filename
$    Matches the end of the filename
( )    Defines a marked subexpression
\n    Matches what the nth marked subexpression matched, where n is a digit from 1 to 9
\b    Match word boundaries
*    Matches the preceding element zero or more times
?    Matches the preceding element zero or one times
+    Matches the preceding element one or more times
*?    Lazily matches the preceding element zero or more times
+?    Lazily matches the preceding element one or more times
{x}    Matches the preceding element x times
{x,}    Matches the preceding element x or more times
{x,y}    Matches the preceding element between x and y times
\    Escape special character