我想解析一个有3个条目的日志文件.它看起来像这样:
Start: foo
Parameters: foo
End: foo
Start: other foo
Parameters: other foo
End: other foo
....
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foo就是我想要的.如果结果如下所示会很好:
logs = [
{
:start=>"foo",
:parameters=>"foo",
:end=>"foo"
},
{
:start=>"other foo",
:parameters=>"other foo",
:end=>"other foo"
}
]
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我知道一些正则表达式,但是我很难理解我如何通过多行来解决这个问题.谢谢!
执行此操作的最佳方法是使用多行正则表达式:
logs = file.scan /^Start: (.*)\nParameters: (.*)$\nEnd: (.*)$/
# => [["foo", "foo", "foo"], ["other foo", "other foo", "other foo"]]
logs.map! { |s,p,e| { :start => s, :parameters => p, :end => e } }
# => [ {:start => "foo", :parameters => "foo", :end => "foo" }, ... ]
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