Re: [Q] questions about Syck

Makoto Kuwata wrote:

> Q1.
> How to add original data type and data pattern?
> For example:
> - to get 'on'/'off' to be parsed as true/false.
> - to get '/^[A-Z]+$/' to be parsed as regular expression.
>  
These are called 'implicit' types.  Libsyck supports them.  See 
lib/implicit.re for details.

If you are writing a Syck extension, you can add implicits in your node 
handler for your parser.

There is no API for adding these types through Ruby, Python, PHP, etc.

> Q2.
> Ruby 1.8.3 has just released.
> Which version of Syck is included in Ruby 1.8.3 and 1.8.2?
> What changes are there between them?
>  
Ruby 1.8.2 has Syck 0.45.  Ruby 1.8.3 has Syck 0.60.  Many, many, many 
changes.

See CHANGELOG. 
<http://rubyforge.org/cgi-bin/viewcvs.cgi/syck/CHANGELOG?rev=1.15&cvsroot=syck&content-type=text/vnd.viewcvs-markup>

> Q3.
> The following options are defined in 'yaml/constants.rb':
>  :Indent => 2, :UseHeader => false, :UseVersion => false, :Version => '1.0',
>  :SortKeys => false, :AnchorFormat => 'id%03d', :ExplicitTypes => false,
>  :WidthType => 'absolute', :BestWidth => 80,
>  :UseBlock => false, :UseFold => false, :Encoding => :None
> These options are intended to be used witch Object#to_yaml(),
> YAML::Stream.new(), and YAML::Store.new().
> But all except :Indent, :SortKeys, :ExplicitTypes and :UseBlock are not
> available when I tried on Ruby 1.8.2.
> What options are available in Ruby 1.8.2 and 1.8.3?
>  
Most of these constants are now singleton methods in Ruby.  I need to 
update documentation and remove the constants from yaml/constants.rb.

> Q4.
> Object#to_yaml or YAML.dump() always prints document separator '---'.
> Is there a way to suppress document separator?
> There were ':Separator otpion' in the YAML4r document, but it is not
> found in Syck.
>  
1.8.2 defaulted to doc separator.  1.8.3 defaults to headless (no doc 
sep.)  Unfortunately, I am totally stupid and forgot to add this to my 
TODO for 1.8.3.  I hope this will be in 1.8.3.1.  And definitely in 1.8.4.

> Could you give me any advice?
>  
Never wear two haircuts at the same time.  Thankyou.

_why


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