From: David Vallner <david@...>
Date: 2006-12-06T07:10:11+09:00
Subject: Re: Can one use line addresses...to select a portion of file

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Devin Mullins wrote:
> Gregory Seidman wrote:
>> inrange =3D false
>> lines =3D open(file).read.split("\n").select { |line|
>>   inrange &&=3D not /__Happy_Meal__/ =3D=3D=3D line
>>   inrange ||=3D /__McDonalds__/ =3D=3D=3D line
>> }
> There is a lesser-known (and usually frowned upon?) feature in Ruby tha=
t
> treats Range notation differently in a "boolean context."
>=20
> IO.foreach(file) do |line| # use this rather that loading the whole fil=
e
>   if line =3D~ /__McDonalds__/ .. line =3D~ /__Happy_Meal__/
>     do_stuff_with line
>   end
> end
>=20

So -this- is what that does?

Does this do that?

Does anyone know what that notation does?

David Vallner
Incoherent


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