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Specify the policy for whitespace in XML format attributes #1179

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duglin merged 1 commit into from
Mar 30, 2023
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Specify the policy for whitespace in XML format attributes #1179

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8 changes: 7 additions & 1 deletion cloudevents/working-drafts/xml-format.md
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Expand Up @@ -105,7 +105,13 @@ An XML element representing a core context attribute MAY be decorated with
an `xsi:type` XML attribute. If present, this designator MUST match that of the type specified
by the [CloudEvent context attributes][ce-attrs].

An XML element representing a context attribute MUST NOT contain any child elements.
An XML element representing a context attribute MUST NOT contain any child elements. The text
within an XML element representing a context attribute MUST NOT contain any line breaks.
When processing the text, the attribute value MUST be parsed without discarding any other
whitespace. (For example, `<myextension xsi:type="ce:string"> text </myextension>` represents
an extension attribute value with leading and trailing whitespace, whereas
`<myextension xsi:type="ce:integer"> 10 </myextension>` is invalid as the textual representation
of an Integer attribute never contains whitespace.)

No other XML element attributes are expected, if present they MUST be ignored during
processing.
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