From: Hal Fulton <hal9000@...>
Date: 2004-03-20T07:12:51+09:00
Subject: Re: Thinking about a date-matching algorithm...

Joel VanderWerf wrote:
> Joel VanderWerf wrote:
> 
> Goofed on that last bit:
> 
>> tenth_day = proc {|d| d[/Julian day: (\d+)/, 1] % 10 == 
>> Date.new(2004,1,8).jd % 10}
>>
>> puts "It's a multiple of ten days since 8 Jan 2004" if tenth_day
> 
> 
> 
> tenth_day = proc { |d|
>   d[/Julian day: (\d+)/, 1].to_i % 10 == Date.new(2004,1,8).jd % 10
> }
> 
> puts "It's a multiple of ten days since 8 Jan 2004" if tenth_day[coords]
> 
> 
> The complete output is:
> 
> "day-ordinal-month: 4, 3, 3; day-month: 18, 3; day-week: 4, 12; day of 
> year: 78; Julian day: 2453083; year: 2004"
> It's Thursday again.
> It's the 1st or 3rd Thursday again.
> It's a multiple of ten days since 8 Jan 2004

Joel,

This technique is pretty clever, but it is a different shape
from my brain.

Hal