--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/turtle/.ensime Fri Nov 26 16:53:00 2010 -0500
@@ -0,0 +1,9 @@
+;; This config was generated using ensime-config-gen. Feel free to customize its contents manually.
+
+(
+
+:project-package "org.w3"
+
+:use-sbt t
+
+)
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/turtle/src/main/scala/turtle.scala Fri Nov 26 16:53:00 2010 -0500
@@ -0,0 +1,85 @@
+package org.w3.sw.turtle
+
+import org.w3.sw.rdf._
+import scala.util.parsing.combinator._
+import java.net.URI
+
+object MyParsers extends RegexParsers {
+
+ val uri = """[a-zA-Z0-9:/#_\.\-]+""".r
+ val integer = """[0-9]+""".r
+ val name = """[a-zA-Z][a-zA-Z0-9_-]*|[a-zA-Z_][a-zA-Z0-9_]+""".r
+ var prefixes:Map[String, String] = Map()
+ var bnodes:Map[String, BNode] = Map()
+ var nextBNode = 1
+}
+
+import MyParsers._
+
+case class Turtle() extends JavaTokenParsers {
+
+ def turtle:Parser[Graph] =
+ opt(triplesblock) ^^ { case tbOPT => tbOPT.getOrElse(Set[Triple]()) }
+
+ def prefixdecl:Parser[Unit] =
+ "@prefix" ~ name ~ ":" ~ qnameORuri ~ "." ^^ { case "@prefix"~pre~":"~u~"." => prefixes += (pre -> u.iri) }
+
+ def triplesblock:Parser[Graph] =
+ rep(triplepatternOrPrefixOrBase) ^^ { case pats => pats.flatten.toSet }
+
+ def triplepatternOrPrefixOrBase:Parser[Option[Triple]] = (
+ triplepattern ^^ { case p => Some(p) }
+ | prefixdecl ^^ { case _ => None }
+ )
+
+ def triplepattern:Parser[Triple] =
+ subject ~ predicate ~ objectt ~ "." ^^ { case s~p~o~"." => Triple(s, p, o) }
+
+ def subject:Parser[Subject] = (
+ qnameORuri ^^ { case x => SubjectNode(NodeIRI(x)) }
+ | bnode ^^ { case x => SubjectNode(NodeBNode(x)) }
+ )
+
+ def predicate:Parser[Predicate] = (
+ qnameORuri ^^ { case x => PredicateIRI(x) }
+ | "a" ^^ { x => IRI("http://www.w3.org/1999/02/22-rdf-syntax-ns#type") }
+ )
+
+ def objectt:Parser[Object] = (
+ qnameORuri ^^ { case x => ObjectNode(x) }
+ | bnode ^^ { case x => ObjectNode(x) }
+ | literal ^^ { case x => ObjectLiteral(x) }
+ )
+
+ def qnameORuri:Parser[IRI] = (
+ "<"~uri~">" ^^ { case "<"~x~">" => IRI(x) }
+ | name~":"~name ^^ {
+ case prefix~":"~localName => try {
+ IRI(prefixes(prefix) + localName)
+ } catch {
+ case e:java.util.NoSuchElementException =>
+ throw new Exception("unknown prefix " + prefix)
+ }
+ }
+ )
+
+ def bnode:Parser[BNode] =
+ "_:"~name ^^ { case "_:"~name => BNode(name) }
+
+ def literal:Parser[Literal] = (
+ stringLiteral~"^^"~qnameORuri ^^
+ {
+ case lit~"^^"~dt => TypedLiteral(lit.substring(1,lit.size - 1), dt.iri match {
+ case "http://www.w3.org/2001/XMLSchema#string" => StringDatatype
+ case "http://www.w3.org/2001/XMLSchema#integer" => IntegerDatatype
+ case "http://www.w3.org/2001/XMLSchema#date" => DateDatatype
+ // case "http://www.w3.org/2001/XMLSchema#dateTime" => DateTimeDatatype
+ case x => error("only programed to deal with string and integer, not " + x)
+ })
+ }
+ | integer ^^ { l => TypedLiteral(l, IntegerDatatype) }
+ )
+
+}
+
+
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/turtle/src/test/scala/turtleTest.scala Fri Nov 26 16:53:00 2010 -0500
@@ -0,0 +1,42 @@
+package org.w3.sw.turtle
+
+import org.w3.sw.rdf._
+
+import org.scalatest.FunSuite
+
+class TurtleTest extends FunSuite {
+
+ test("parse 1") {
+
+ val directgraph_emp_adder:Graph =
+ Set(
+ Triple(IRI("People/ID.7#_"),IRI("People#ID"),TypedLiteral("7",IRI("http://www.w3.org/2001/XMLSchema#integer"))),
+ Triple(IRI("People/ID.7#_"),IRI("People#fname"),TypedLiteral("Bob",IRI("http://www.w3.org/2001/XMLSchema#string"))),
+ Triple(IRI("People/ID.7#_"),IRI("People#addr"),IRI("Addresses/ID.18#_")),
+ Triple(IRI("People/ID.8#_"),IRI("People#ID"),TypedLiteral("8",IRI("http://www.w3.org/2001/XMLSchema#integer"))),
+ Triple(IRI("People/ID.8#_"),IRI("People#fname"),TypedLiteral("Sue",IRI("http://www.w3.org/2001/XMLSchema#string"))),
+
+ Triple(IRI("Addresses/ID.18#_"),IRI("Addresses#ID"),TypedLiteral("18",IRI("http://www.w3.org/2001/XMLSchema#integer"))),
+ Triple(IRI("Addresses/ID.18#_"),IRI("Addresses#city"),TypedLiteral("Cambridge",IRI("http://www.w3.org/2001/XMLSchema#string"))),
+ Triple(IRI("Addresses/ID.18#_"),IRI("Addresses#state"),TypedLiteral("MA",IRI("http://www.w3.org/2001/XMLSchema#string")))
+ )
+
+ val turtle_emp_adder:String = """
+@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
+<People/ID.7#_> <People#ID> "7"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<People/ID.7#_> <People#fname> "Bob"^^<http://www.w3.org/2001/XMLSchema#string> .
+<People/ID.7#_> <People#addr> <Addresses/ID.18#_> .
+<People/ID.8#_> <People#ID> 8 .
+<People/ID.8#_> <People#fname> "Sue"^^xsd:string .
+<Addresses/ID.18#_> <Addresses#ID> 18 .
+<Addresses/ID.18#_> <Addresses#city> "Cambridge"^^xsd:string .
+<Addresses/ID.18#_> <Addresses#state> "MA"^^xsd:string .
+"""
+
+ val turtleParser = Turtle()
+
+ assert(directgraph_emp_adder === turtleParser.parseAll(turtleParser.turtle, turtle_emp_adder).get)
+
+ }
+
+}