You can also specify repetition within patterns. : Regexps Repetition « Development « Ruby
- Regexps Repetition
You can also specify repetition within patterns.
/ab+c/ matches a string containing an a followed by one or more b's, followed by a c.
/ab*c/ matches one a, zero or more b's, and one c.
Related examples in the same category
|2.||have Repetition match the minimum by adding a question mark suffix.|
|3.||use part of the current match later in that match allows you to look for various forms of repetition.|
|4.||use back references to match delimiters.|
|5.||A pattern that matches a string containing the text Perl or the text Python|
|6.||Use parentheses within patterns,just as you can in arithmetic expressions|
|7.||match one of a group of characters within apattern|
|8.||Match a time such as 12:34:56|
|9.||Match Perl, zero or more other chars, then Python|
|10.||Match Perl, a space, and Python|
|11.||Match Perl, zero or more spaces, and Python|
|12.||Match Perl, one or more spaces, and Python|
|13.||Match Perl, whitespace characters, then Python|
|14.||Match Ruby, a space, and either Perl or Python|
|15.||The match operator =~ can be used to match a string against a regular expression.|
|16.||The part of a string matched by a regular expression can be replaced|
|17.||Replace every occurrence of Perl and Python with Ruby|