From: Detlef Reichl <detlef.reichl@...>
Date: 2006-01-17T06:09:11+09:00
Subject: Re: [newbie] this month, the next month, and the one after that

Am Dienstag, den 17.01.2006, 05:55 +0900 schrieb James Edward Gray II:
> On Jan 16, 2006, at 2:29 PM, David Vallner wrote:
> 
> > Mind you, DateTime::MONTHNAMES is one-indexed, starting from January,
> 
> We can fix that.  ;)
> 
> > so you'll have to do some index-shiftingto wrap around the end of  
> > the array correctly. And since there's very little I hate more than  
> > shifting array indices around, the exercise is left to the reader ;P
> 
> Okay, I'll bite:
> 
>  >> current = Time.now.strftime("%B")
> => "January"
>  >> require "date"
> => true
>  >> months = (Date::MONTHNAMES + Date::MONTHNAMES).compact
> => ["January", "February", "March", "April", "May", "June", "July",  
> "August", "September", "October", "November", "December", "January",  
> "February", "March", "April", "May", "June", "July", "August",  
> "September", "October", "November", "December"]
>  >> three_months = months[months.index(current), 3]
> => ["January", "February", "March"]
> 
i don't like redundant data...


irb(main):042:0* current = Time.now.mon
=> 1
irb(main):043:0> require "date"
=> false
irb(main):044:0> months = Date::MONTHNAMES.compact
=> ["January", "February", "March", "April", "May", "June", "July",
"August", "September", "October", "November", "December"]
irb(main):045:0> three_month = []
=> []
irb(main):046:0> (0..2).each {|i| three_month << months[(i+current-1) %
12]}
=> 0..2
irb(main):047:0> p three_month
["January", "February", "March"]
=> nil

detlef


> James Edward Gray II
> 
>