From b0c7e3284b8b539427fb4ca06c919bbcbd42a919 Mon Sep 17 00:00:00 2001
From: Dave Beckett <dave@dajobe.org>
Date: Thu, 4 Mar 2010 10:22:59 -0800
Subject: [PATCH] Import from http://triplr.org/sparyql/ and
 http://github.com/dajobe/sparyql

---
 sparql/README.md         | 31 ++++++++++++++++++++
 sparql/sparql.search.xml | 61 ++++++++++++++++++++++++++++++++++++++++
 2 files changed, 92 insertions(+)
 create mode 100644 sparql/README.md
 create mode 100644 sparql/sparql.search.xml

diff --git a/sparql/README.md b/sparql/README.md
new file mode 100644
index 00000000..5c1b2855
--- /dev/null
+++ b/sparql/README.md
@@ -0,0 +1,31 @@
+SPARYQL
+-------
+
+SPARQL + YQL = SPARYQL
+
+Try these queries in the [YQL Console][1]
+
+1. Example 1: get all triples from a FOAF file
+   <pre><code>
+   use "http://triplr.org/sparyql/sparql.xml" as sparql;
+   select * from sparql where query="PREFIX foaf: &lt;http://xmlns.com/foaf/0.1/&gt; SELECT $s $p $o FROM &lt;http://www.dajobe.org/foaf.rdf&gt; WHERE { $s $p $o } LIMIT 10"
+     and service="http://sparql.org/sparql"
+   </code></pre>
+
+2. Example 2: get friend's nick and names from a FOAF file
+   <pre><code>
+   use "http://triplr.org/sparyql/sparql.xml" as sparql;
+   select * from sparql where query="PREFIX foaf: &lt;http://xmlns.com/foaf/0.1/&gt; SELECT $nick $name FROM &lt;http://www.dajobe.org/foaf.rdf&gt; WHERE { $x a foaf:Person . $x foaf:nick $nick . $x foaf:name $name }"
+     and service="http://sparql.org/sparql"
+   </code></pre>
+
+3. Example 3 - select just one field: value of object triple
+   <pre><code>
+   use "http://triplr.org/sparyql/sparql.xml" as sparql;
+   select result.o.value from sparql where query="PREFIX foaf: <http://xmlns.com/foaf/0.1/> SELECT $s $p $o FROM <http://www.dajobe.org/foaf.rdf> WHERE { $s $p $o } LIMIT 10"
+     and service="http://sparql.org/sparql"
+   </code></pre>
+
+***
+
+  [1]: http://developer.yahoo.com/yql/console/
diff --git a/sparql/sparql.search.xml b/sparql/sparql.search.xml
new file mode 100644
index 00000000..4bee65b5
--- /dev/null
+++ b/sparql/sparql.search.xml
@@ -0,0 +1,61 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<table xmlns="http://query.yahooapis.com/v1/schema/table.xsd"
+       securityLevel="any"
+       https="false"
+       >
+<!-- http://developer.yahoo.com/yql/guide/yql-opentables-reference.html -->
+<meta>
+  <author>Dave Beckett</author>
+  <documentationURL>http://triplr.org/sparyql/</documentationURL>
+  <sampleQuery>select * from {table} where query="SPARQL QUERY" and service="SPARQL ENDPOINT URL" e.g.
+select * from {table} where query="PREFIX foaf: &lt;http://xmlns.com/foaf/0.1/&gt; SELECT $nick $name FROM &lt;http://www.dajobe.org/foaf.rdf&gt; WHERE { $x a foaf:Person . $x foaf:nick $nick . $x foaf:name $name }" and service="http://sparql.org/sparql"
+  </sampleQuery>
+</meta>
+<bindings>
+  <select produces="XML"> 
+    <!--
+        SPARQL Protocol http://www.w3.org/TR/rdf-sparql-protocol/
+        HTTP binding:
+	{ endpoint} ?query={query} & default-graph-uri={uri}
+
+        Requires/assumes application/sparql-results+xml response.
+    -->
+    <inputs>
+      <key id='query'   type='xs:string' paramType='variable' required='true' />
+      <key id='service' type='xs:uri'    paramType='variable' required='true' />
+    </inputs>
+
+    <execute>
+    <![CDATA[
+url = unescape(service) + "?query=" + escape(query);
+
+var resp = y.rest(url).accept("application/sparql-results+xml").get();
+var data = resp.response;
+
+default xml namespace = ''; 
+var sparqlns = new Namespace('http://www.w3.org/2005/sparql-results#'); 
+
+var xdata = <sparql>{data}</sparql>;
+
+var results = <sparql>
+  <query>{query}</query>
+</sparql>;
+for each (var result in xdata.sparqlns::sparql.sparqlns::results.elements()) {
+  var row = <result/>;
+  for each (var binding in result.elements()) {
+    var b = <{binding.@name}/>;
+    for each (var e in binding.elements()) {
+      b.appendChild(<type>{e.localName()}</type>);
+      b.appendChild(<value>{e.text()}</value>);
+    }
+    row.appendChild(b);
+  }
+  results.sparql += row;
+}
+response.object = results;
+  ]]>
+    </execute>
+  </select>
+</bindings>
+
+</table>