高橋征義です。

レオさん、すぎむしさん、鈴木さん、どうもありがとうございます(_o_)

Leonard Chin wrote:
> レオと申します。
> 
>> 鈴木と申します。
>> なんだかちゃんと伝わるのか心許ないのですが、たたき台に。
> 
> 他に貢献できるところがないので、翻訳してみました。
> Here's a translation, if it isn't too late.

ありがとうございます。これはいただいたものそのままでrubyonrails-talkに
引用して投げようかと思いますが、いいですかね？


> - None of the modules in RAA or Rubyforge that deal with
> message_digest appear to be using the ext/digest interface. Despite
> having interfaces similar to OpenSSL::Digest, the implementations are
> not shared. In other words, there were problems with the reusability
> of the original implementation-side API.
> 
> With this in mind, the implementation-side APIs have undergone a major
> overhaul, while mostly maintaining the user-side interface.The C API
> has been improved, and a Ruby API has been newly added.
> 
> - In order to handle algorithms with parameters, the constructor has
> been opened up to subclasses. As a result, modules which specify an
> algorithm (as in OpenSSL::Digest), specify the bit length (SHA2 etc).,
> can be implemented as subclasses of Digest(::Class). On the downside,
> a degree of compatibility has been lost.
> 
> Although we wanted to maintain backwards compatibility, but the
> changes were applied because greater importance is placed on
> compatibility with 1.9 and onwards. Furthermore, there weren't many
> examples of "new" being used with parameters, and it would be
> comparatively easy to identify and rewrite such cases.
> 
> Here's how it can be rewritten:
> 
> - Digest::MD5.new(str).hexdigest and similar usages are just (too) verbose.
>  Digest::MD5.hexdigest(str) is good enough/sufficent (this apples to
> .to_s and .digest as well)
> 
> - In the cases of usages such as:
> md = Digest::MD5.new(str)
>  please rewrite it like this:
> md = Digest::MD5.new.update(str)
> 
> An implementation of Tiger and Whirlpool using the new implementation
> API can be found at the following URL:
> 
> http://rubyforge.org/viewvc/?root=digest
> 
> That the above can now be distributed independently can be seen as the
> fruit of this set of changes, since they were originally hard to build
> standalone without the sourcecode of Ruby itself. (Unless their usage
> becomes widespread, there is no intention of adding them to the
> standard distribution)

高橋征義 (maki@r...)

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