But it only removes it for the element it’s added to — not the children
elements. (I think…)
On Jan 10, 2016, at 5:42 PM, Alex Harui <aha...@adobe.com> wrote:
>
>
> On 1/10/16, 7:35 AM, "Harbs" <harbs.li...@gmail.com> wrote:
>
>> Here’s an item in the spec which I’m having trouble understanding:
>>
>> When the [[AddInScopeNamespace]] method of an XML object x is called with
>> a namespace N, the following steps are taken:
>> 1. If x.[[Class]] ∈ {"text", "comment", "processing-instruction",
>> “attribute”}, return
>> 2. If N.prefix != undefined
>> a. If N.prefix == "" and x.[[Name]].uri == "", return
>> b. Let match be null
>> c. For each ns in x.[[InScopeNamespaces]]
>> i. If N.prefix == ns.prefix, let match = ns
>> d. If match is not null and match.uri is not equal to N.uri
>> i. Remove match from x.[[InScopeNamespaces]]
>> e. Let x.[[InScopeNamespaces]] = x.[[InScopeNamespaces]] ∪ { N }
>> f. If x.[[Name]].[[Prefix]] == N.prefix
>> i. Let x.[[Name]].prefix = undefined
>> g. For each attr in x.[[Attributes]]
>> i. If attr.[[Name]].[[Prefix]] == N.prefix, let attr.[[Name]].prefix
>> = undefined
>> 3. Return
>>
>> I do not understand e through g. It looks like the spec says you are
>> supposed to remove the prefixes of the XML which has the namespace added
>> to it if the prefix matches the added namespace. Why would you do that?
>
> I don't know for sure. Maybe because they are now in scope, a prefix is
> no longer needed?
>
> -Alex
