From: Marcin Grzywaczewski <killavus@...>
Date: 2007-09-03T06:15:58+09:00
Subject: Re: extract a range start/end?

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2007/9/2, Wilson Bilkovich <wilsonb@gmail.com>:
>
> On 9/2/07, Marcin Grzywaczewski <killavus@gmail.com> wrote:
> > 2007/9/2, Michael Linfield <globyy3000@hotmail.com>:
> > >
> > > if i have a list of dates in an array such as:
> > >
> > > 4/2/07
> > > 4/3/07
> > > 4/4/07
> > > 4/5/07
> > > 4/6/07
> > > 4/7/07
> > > 4/8/07
> > > ect.
> > >
> > > how would i..based on option parse..pull a starting point and end
> point
> > > of to extract that data range.
> > >
> > > IE:
> > >
> > > opts = OptionParser.new do |opts|
> > > opts.on("-s", "--startdate", "What start date to use." do |i|
> > >    #code to determine to use the starting date
> > > end
> > >
> > > # the same would apply to an --enddate
> > >
> > > any ideas?
> > >
> > > i was thinking i could possibly create a new range depending on what
> the
> > > user input was by doing
> > >
> > > require 'date'
> > > results = []
> > >
> > > (Date.new(2007,4,1)..Date.new(2007,4,8)).each {|r| res << r}
> > > but then how would i match that against the original dates for the
> data?
> > >
> > > feel free to give me any thoughts.
> > >
> > > -Thanks
> > > --
> > > Posted via http://www.ruby-forum.com/.
> >
> >
> > I think that range operates on numbers, and method "to_i" casts class to
> > number, so your class should have specific method "to_i".
> >
>
> From rdoc:
> Ranges can be constructed using objects of any type, as long as
>      the objects can be compared using their <=> operator and they
>      support the succ method to return the next object in sequence.
>
> In practice, that usually means 'Anything that has Enumerable as an
> ancestor'



Oh, my bad. Sorry :)...

Yours,
Killavus.

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