re = /(?<!.)([\s]*)(go|GO)\s*([\r\n])?/m
str = 'use SCRATCH
GO;
--go
set nocount ON ;go;
go
\' go \'
\'go\'
\'go
go\'
create table gonogo ( go int null, nogo int null)
GO
insert INTO mungbean VALUES (1); go
GO
;
select * from mungbean
go
go
go;
\'
select go from go
go
select go from allgo
GO
'
# Print the match result
str.scan(re) do |match|
puts match.to_s
end
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for Ruby, please visit: http://ruby-doc.org/core-2.2.0/Regexp.html