Character Class: Repeated Characters : Character Class « Regular Expression « Perl






  1. Perl
  2. Regular Expression
  3. Character Class

Character Class: Repeated Characters

    

Metacharacter               What It Matches

x?                          Matches 0 or 1 x
x*                          Matches 0 or more occurrences of x
x+                          Matches 1 or more occurrences of x
(xyz)+                      Matches 1 or more patterns of xyz
x{m,n}                      Matches at least m occurrences of x and no more than n occurrences of x








Related examples in the same category

1.Character Class: Alternative Characters
2.Character Class: Anchored Characters
3.Character Class: Miscellaneous Characters
4.Character Class: Remembered Characters
5.Character Class: Whitespace Characters
6.Match any number of alphanumerics followed by a single space character
7.Match at least one alphanumeric followed by a single space character
8.Posix and Unicode Classes
9.The bracket metacharacters and negation
10.The bracketed character class