From: SpringFlowers AutumnMoon <summercoolness@...>
Date: 2007-09-23T17:20:49+09:00
Subject: Re: Questions about Date.strptime

Allen Young wrote:

> strptime is the right place to go. For some formats of string it's [...]
> 
> '20070912': there is no '.', '-' or '/' as the seperator and '%Y%m%d'
> doesn't work, it will throw an exception saying that: "ArgumentError: 3
> elements of civil date are necessary".

looks like it would be handy if there is something like

  Date.strptime("010207", "%2m%2d%2y").to_s

but right now that won't run.  maybe it tries to avoid ambiguity.


you can at least use one of these:

a = "20070923"

if match = /^(\d{4})(\d{2})(\d{2}$)/.match(a)
  a.replace(match[1..3].join("/"))
  puts a
end


a = "20070923"
a[4,0] = a[6,0] = "/"
puts a

E:\>ruby date.rb
2007/09/23
2007/09/23



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