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ESS 2.9 text

1998-02-24 07:40:47
Hope this has not already been mentioned.

The text in 2.9 ...

 The construct "SIZE (1..MAX)" is used in the DirectoryString 
 syntax to constrain each CHOICE to have at least one entry. 

could be improved by changing the second line to read...

 notation to constrain each choice alternative to contain
 at least one character.  
 
The text following the above...

 MAX indicates that the upper bound is unspecified.  
 Implementations are free to choose an upper bound that 
 suits their environment.

will create problems. If one implementor chooses an upper 
bound of 64 and sends a message to an implementor with an
upper bound of say 32, the message will fail to decode.

Implementors should be allowed to choose the upper bound 
that suits them for messages that they send, but should be 
prepared to receive messages of any length.

Phil
-- 
Phillip H. Griffin         Griffin Consulting
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