ruby - What is the most efficient way to search for a sub-string -

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in below string revision number 153. part inside string beside text "revision: 153\n".

string = "path: blah\blah\nworking copy root path: blah\blah\nurl: blah\blah\nrelative url: ^/readme.txt\nrepository root: blah\blah\nrepository uuid: 2d7234b632a-38239d-4384f-9ac3-c05286096652\nrevisio     n: 153\nnode kind: file\nschedule: normal\nlast changed author: user_name\nlast changed rev: 153\nlast changed date: 2014-11-27 11:38:21 +0530 (thu, 27 nov 2014)\ntext last updated: 2014-11-27 12:     05:24 +0530 (thu, 27 nov 2014)\nchecksum: 7ecb9f79f244r4f996e637d6f23\n\n"

currently doing way : 

string.split('revision').last.split('node').first.chomp.gsub(': ','').to_i

which outputs 153.

is there better way it?

you can use string's [] , regular expression here:

string[/revision:\s(\d+)/, 1]

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