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- #!/usr/bin/ruby
- #
- ## https://rosettacode.org/wiki/Regular_expressions
- #
- var str = "I am a string";
-
- # Substitute something mached by a regex
- str.sub!(/ a /, ' another '); # "I am a string" => "I am another string"
-
- # Remove something matched by a regex
- str -= / \Kanother /i; # "I am another string" => "I am string"
-
- # Global subtitution with a block
- str = str.gsub(/(\w+)/, {|s1| 'x' * s1.len}); # globaly replace any word with 'xxx'
-
- say str; # prints: 'x xx xxxxxx'
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