iphone - get birthdate, birthplace from mediawiki xml format api -

i trying details of person mediawiki in objective-c. using http://en.wikipedia.org/w/api.php?action=query&prop=revisions&rvprop=content&rvsection=0&titles=albert_einstein&format=xml

i getting data in response follow:

</i>$0 = 0x07562e60 <?xml version="1.0"?><api><query><normalized><n     from="albert_einstein" to="albert einstein" /></normalized><pages><page pageid="736" ns="0" title="albert einstein"><revisions><rev contentformat="text/x-wiki" contentmodel="wikitext"     xml:space="preserve">{{redirect|einstein}} {{good article}} {{pp-semi|small=yes}}{{pp-move-indef}} {{infobox scientist | name        = albert einstein | image       = einstein 1921 f schmutzer.jpg | caption     = albert einstein in 1921 | birth_date  = {{birth date|df=yes|1879|3|14}} | birth_place = [[ulm]], [[kingdom of württemberg]], [[german empire]] | death_date  = {{death date , age|df=yes|1955|4|18|1879|3|14}} | death_place = {{nowrap|[[princeton, new jersey|princeton]], [[new jersey]], u.s.}} | children    = [[lieserl einstein|lieserl]] (1902-1903?)&lt;br /&gt;[[hans albert     einstein|hans albert]] (1904-1973)&lt;br /&gt;[[eduard einstein|eduard &quot;tete&quot;]] (1910-1965) | spouse      = [[mileva marić]]&amp;nbsp;(1903–1919)&lt;br /&gt;{{nowrap|[[elsa  löwenthal]]&amp;nbsp;(1919–1936)}} | residence   = germany, italy, switzerland, austria, belgium, united states | citizenship = {{plainlist| </i> 

now want birthdate person in objective-c. somehow can manage birth_date also. question is, proper parsing available parsing these data?

this not way. use web api client library. better yet, use proper api, i.e. – data question – wikidata's.

see wbgetclaims docs , example: https://www.wikidata.org/w/api.php?action=wbgetclaims&entity=q937&property=p569 gives

{     "claims": {         "p569": [             {                 "id": "q937$2ecb21c3-4db1-54e8-27c4-a8a40541930c",                 "mainsnak": {                     "snaktype": "value",                     "property": "p569",                     "datatype": "time",                     "datavalue": {                         "value": {                             "time": "+00000001879-03-14t00:00:00z",                             "timezone": 0,                             "before": 0,                             "after": 0,                             "precision": 11,                             "calendarmodel": "http://www.wikidata.org/entity/q1985727"                         },                         "type": "time"                     }                 },                 "type": "statement",                 "rank": "normal",                 "references": [                     {                         "hash": "d6e3ab4045fb3f3feea77895bc6b27e663fc878a",                         "snaks": {                             "p143": [                                 {                                     "snaktype": "value",                                     "property": "p143",                                     "datatype": "wikibase-item",                                     "datavalue": {                                         "value": {                                             "entity-type": "item",                                             "numeric-id": 206855                                         },                                         "type": "wikibase-entityid"                                     }                                 }                             ]                         },                         "snaks-order": [                             "p143"                         ]                     },                     {                         "hash": "7eb64cf9621d34c54fd4bd040ed4b61a88c4a1a0",                         "snaks": {                             "p143": [                                 {                                     "snaktype": "value",                                     "property": "p143",                                     "datatype": "wikibase-item",                                     "datavalue": {                                         "value": {                                             "entity-type": "item",                                             "numeric-id": 328                                         },                                         "type": "wikibase-entityid"                                     }                                 }                             ]                         },                         "snaks-order": [                             "p143"                         ]                     },                     {                         "hash": "f991bf419530b161a136a5c4e55c49909074ce49",                         "snaks": {                             "p248": [                                 {                                     "snaktype": "value",                                     "property": "p248",                                     "datatype": "wikibase-item",                                     "datavalue": {                                         "value": {                                             "entity-type": "item",                                             "numeric-id": 36578                                         },                                         "type": "wikibase-entityid"                                     }                                 }                             ],                             "p813": [                                 {                                     "snaktype": "value",                                     "property": "p813",                                     "datatype": "time",                                     "datavalue": {                                         "value": {                                             "time": "+00000002014-04-09t00:00:00z",                                             "timezone": 0,                                             "before": 0,                                             "after": 0,                                             "precision": 11,                                             "calendarmodel": "http://www.wikidata.org/entity/q1985727"                                         },                                         "type": "time"                                     }                                 }                             ]                         },                         "snaks-order": [                             "p248",                             "p813"                         ]                     }                 ]             }         ]     } }