Regex - Split message into groups-CodePudding

I want to split this message into groups:

[Rule] 'Server - update repository' [Source] 10.10.10.10 [User] _Server [Content] HTTP GET http://example.com

Expected result:

Group1: [Rule] 'Server - update repository'
Group2: [Source] 10.10.10.10
Group3: [User] _Server
Group4: [Content] HTTP GET http://example.com

It does not have to be 4 groups, sometimes it can be less / more. Pattern I tried to built:

(\(^\[\w \].*\)){0,}

CodePudding user response：

I would do it like this:

string = "[Rule] 'Server - update repository' [Source] 10.10.10.10 [User] _Server [Content] HTTP GET http://example.com"

regexp = /\[?[^\[] /
string.scan(regexp)
#=> ["[Rule] 'Server - update repository' ", "[Source] 10.10.10.10 ", "[User] _Server ", "[Content] HTTP GET http://example.com"]

Or when you prefer a hash to be returned:

regexp = /\[(\w )\]\s ([^\[] )/
string.scan(regexp).to_h
#=> { "Rule" => "'Server - update repository' ", "Source" => "10.10.10.10 ", "User" => "_Server ", "Content" => "HTTP GET http://example.com" }

CodePudding user response：

If there will be no [ in the group text this might work.

str = "[Rule] 'Server - update repository' [Source] 10.10.10.10 [User] _Server [Content] HTTP GET http://example.com"

str.split("[").each_with_index {|c, i| puts "Group #{i}: [#{c}" if i > 0}
Group 1: [Rule] 'Server - update repository' 
Group 2: [Source] 10.10.10.10                    
Group 3: [User] _Server                          
Group 4: [Content] HTTP GET http://example.com