Re: [wsn] [WSN5.2]Documenting pseudo schema language

[Steve Graham <sggraham@us.ibm.com>]

Not in any near term I would imagine.

++++++++
Steve Graham
(919)254-0615 (T/L 444)
STSM, On Demand Architecture
Member, IBM Academy of Technology
<Soli Deo Gloria/>
++++++++

David Hull <dmh@tibco.com>

09/09/2004 03:55 PM

To
cc	wsn@lists.oasis-open.org
Subject	Re: [wsn] [WSN5.2]Documenting pseudo schema language

Is there any chance of some entity documenting a standard
form for this, a la EBNF?

Steve Graham wrote:

I move that we resolve this issue by adopting the text similar to that
used in WSDL 2.0 (part 1) [1]: 

Pseudo-schemas are provided for each component, before the description
of the component. They use BNF-style conventions for attributes and elements:
`?' denotes optionality (i.e. zero or one occurrences), `*'
denotes zero or more occurrences, `+' one or more occurrences, `['
and `]' are used to form groups, `|' represents choice. Attributes
are conventionally assigned a value which corresponds to their type, as
defined in the normative schema. 
<!-- sample pseudo-schema -->
<defined_element
     required_attribute_of_type_string="xs:string"
     optional_attribute_of_type_int="xs:int"?
>
 <required_element />
 <optional_element />?
 <one_or_more_of_these_elements />+
 [ <choice_1 /> | <choice_2 /> ]*
</defined_element>


[1]http://www.w3.org/TR/2004/WD-wsdl20-20040803/

++++++++
Steve Graham
(919)254-0615 (T/L 444)
STSM, On Demand Architecture
Member, IBM Academy of Technology
<Soli Deo Gloria/>
++++++++