[reSIProcate] XML parser

[Mateus Bellomo]

I just found out that you need be inside the tag to get it's value, e.g:

<note>Online</note>

assuming you are in the "note" tag, you need to do firstChild(), and then
do a getValue().

2016-07-10 22:50 GMT-03:00 Mateus Bellomo <mateusbellomo at gmail.com>:

> I'm trying to walk through the xml that I have and I couldn't get the
> value of a certain tag. This is the xml:
>
> <?xml version="1.0" encoding="UTF-8" standalone="no"?>
> <presence xmlns="urn:ietf:params:xml:ns:pidf"
> xmlns:dm="urn:ietf:params:xml:ns:pidf:data-model"
> xmlns:rpid="urn:ietf:params:xml:ns:pidf:rpid" entity="
> sip:mateusruivo at ekiga.net">
>   <dm:person id="p6311">
>     <rpid:activities/>
>   </dm:person>
>   <tuple id="t5763">
>     <status>
>       <basic>open</basic>
>     </status>
>     <contact>sip:mateusruivo at ekiga.net</contact>
>     <note>Online</note>
>   </tuple>
> </presence>
>
> When I get to <contact> I try to do a getValue() [1] but I'm getting an
> empty string. I also didn't understand the implementation of this function:
> why it is getting the value only of leaf nodes? what if the node I want to
> get the value is not a leaf?
>
> I also tried to use pidf parse [2] like this:
>
>    ParseBuffer pb(notifyData.data(), notifyData.size());
>    NameAddr res;
>    res.parse(pb);
>
> But I'm getting an error:
>
> DEBUG | 20160710-224736.679 | telepathy-resiprocate | RESIP |
> 140593923626752 | ParseBuffer.cxx:971 | ParseBuffer.cxx:735, Parse failed
> Expected a digit in context:
> <?xml version="1.0" encoding="UTF-8" standalone="no"?>
> <presence xmlns="urn:ietf:params:xml:ns:pidf"
> xmlns:dm="urn:ietf:params:xml:ns:pidf:data-model"
> xmlns:rpid="urn:ietf:params:xml:ns:pidf:rpid" entity="
> sip:mateusruivo at ekiga.net">[CRLF]
>                           ^[CRLF]
>   <dm:person id="p6311">
>     <rpid:activities/>
>   </dm:person>
>   <tuple id="t5763">
>     <status>
>       <basic>open</basic>
>     </status>
>     <contact>sip:mateusruivo at ekiga.net</contact>
>     <note>Online</note>
>   </tuple>
> </presence>
>
> Any help would be greatly appreciated.
>
> [1]
> https://github.com/resiprocate/resiprocate/blob/master/rutil/XMLCursor.cxx#L410
> [2]
> https://github.com/resiprocate/resiprocate/blob/master/resip/stack/Pidf.cxx#L171
>
> 2016-07-10 17:46 GMT-03:00 Mateus Bellomo <mateusbellomo at gmail.com>:
>
>> Hello,
>>
>> I'm implementing the onNotifyReceived() method of
>> resip/recon/UserAgent.cxx and for that I need to parse a XML that comes
>> within the NOTIFY message.
>>
>> I'm reading the XMLCursos.* [1] class and I see that I could use that to
>> do the parse. But I'm looking if it isn't already a parser into resiprocate
>> library before I start to implement it.
>>
>> I saw the parse() method at [2] and it looks like it does the parse that
>> I want but I didn't saw any usage of it in a XML, just in some string at
>> resip/stack/test/testParserCategories.cxx.
>>
>> Thanks in advance.
>>
>>
>> [1]
>> https://github.com/resiprocate/resiprocate/blob/master/rutil/XMLCursor.cxx
>> [2]
>> https://github.com/resiprocate/resiprocate/blob/master/resip/stack/Pidf.cxx#L171
>>
>
>
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