example 7.17 in YAML 1.2 spec 2009-07-21

Dear the YAML spec writers,

I am now testing my YAML 1.2 parser written in C# along with the 
YAML 1.2 specification dated 2009-07-21. Meanwhile, I have some 
questions and comments on the specification. Please allow me to 
post them in several independent emails.

At first, I noticed the example 7.17. is not reproduced by my 
parser nor ypaste. To reproduce the result, it is required to 
replace ( ":" followed by an ns-char ) in the the definition 
of ns-plain-char(c) by ( ":" followed by an ns-plain-safe(c) ).

ns-plain-char(c) ::= ns-plain-safe(c)
                   | ( /* An ns-char preceding */ # )
                   | ( : /* Followed by an ns-plain-safe(c) */ ) 
                                               ~~~~~~~~~~~~~~~~
I feel like the result of this example is more desirable than 
accepting "omitted value:" as the key for the entry.

What is the official way to accept the source?

Osamu Takeuchi

PS 
The followings are the mechanical defects I found in the spec in 
addition to the ones indicated by Brad on 2009-07-25.

- Example 6.4.: A line break in literal text is missing in the result.
- Example 8.21. shows a completely deferent result.
- Example 9.5. : Map node does not seem to exist in the source.

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