From: imranwebpost@...
Date: 2015-01-07T07:54:48+00:00
Subject: [ruby-core:67380] [ruby-trunk - Bug #10703] Invalid Dates Bug Patch

Issue #10703 has been updated by Imran "".


Akira Tanaka:
I've highlighted this bug and offered a patch also. I love Ruby a lot. I wish I could say the same about its community.

Tsuyoshi Sawada:
It is a working solution. Instead of trolling, share your ingenious alternative.

----------------------------------------
Bug #10703: Invalid Dates Bug Patch
https://bugs.ruby-lang.org/issues/10703#change-50824

* Author: Imran ""
* Status: Rejected
* Priority: Normal
* Assignee: 
* Category: 
* Target version: 
* ruby -v: 2.0.0-p481
* Backport: 2.0.0: UNKNOWN, 2.1: UNKNOWN, 2.2: UNKNOWN
----------------------------------------
The following is a pure Ruby-based patch to address the issues raised in <a href="http://bugs.ruby-lang.org/issues/10588"> Bug 10588 Invalid Dates</a>:

~~~
class SmartTime < Time
  def self.mktime year, month, day
    case month
    when 4, 6, 9, 11
      if day == 31
        raise ArgumentError, 'argument out of range _ APR, JUNE, SEP, NOV', caller
      else
        super
      end
    when 2
        case day
        when 30, 31
          raise ArgumentError, 'argument out of range _ FEB', caller
        when 29
          if year%100 == 0
            if year%400 == 0
              super
            else
              raise ArgumentError, 'argument out of range _ FEB', caller
            end
          else
            if year%4 == 0
              super
            else
              raise ArgumentError, 'argument out of range _ FEB', caller
            end
          end
        else
          super
        end
    else
      super
    end
  end
end
~~~

Another version of this patch with a light-hearted commentary, using the same algorithm but a slightly different approach, is available at: <a href="http://otherimran.wordpress.com/2015/01/02/ruby-invalid-dates-patch/">otherimran.wordpress.com</a>

Ruby is a mature, productive programming tool. It���s not a silly toy. It doesn���t deserve to have such dumb bugs lurking inside its core classes.

That���s just me, exercising my right to politely protest the decision made by Ruby maintainers. I hope they would reconsider and fix it internally.

---Files--------------------------------
SmartTime.rb (953 Bytes)


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