--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/main/scala/RDB2RDFMain.scala	Sat Dec 05 22:27:42 2009 -0500
@@ -0,0 +1,57 @@
+package w3c.sw
+
+import scala.util.parsing.combinator._
+import java.net.URI
+
+case class Arith() extends JavaTokenParsers {
+  def expr: Parser[Any] = term~rep("+"~term | "-"~term)
+  def term: Parser[Any] = factor~rep("*"~factor | "/"~factor)
+  def factor: Parser[Any] = floatingPointNumber | "("~expr~")"
+}
+
+object MyParsers extends RegexParsers {
+
+  val uri = """[a-zA-Z0-9:]+""".r
+  val varr = """\?[a-zA-Z0-9]+""".r
+
+}
+
+import MyParsers._
+
+case class TriplePatterns(triplepatterns:List[TriplePattern])
+case class TriplePattern(s:S, p:P, o:O)
+
+sealed abstract class S
+case class SUri(uri:URI) extends S
+case class SVar(v:Var) extends S
+
+sealed abstract class O
+case class OUri(uri:URI) extends O
+case class OVar(v:Var) extends O
+case class OLit(lit:Lit) extends O
+
+sealed abstract class P
+case class PUri(stem:Stem, rel:Rel, attr:Attr) extends P
+case class PVar(v:Var) extends P
+
+sealed abstract class Lit
+case class LitInt(i:Int) extends Lit
+case class LitString(s:String) extends Lit
+
+case class Stem(s:String)
+case class Attr(s:String)
+case class Rel(s:Rel)
+
+case class Var(s:String)
+
+case class Sparql() extends JavaTokenParsers {
+
+  def triplepatterns = repsep(triplepattern, ".") 
+  def triplepattern = subject ~ predicate ~ objectt
+  def subject = uri | varr
+  def predicate = uri
+  def objectt = uri | varr | literal
+  def literal = stringLiteral
+
+}
+

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/test/scala/RDB2RDFTest.scala	Sat Dec 05 22:27:42 2009 -0500
@@ -0,0 +1,24 @@
+package w3c.sw
+
+import org.scalatest.FunSuite
+
+class TestBank extends FunSuite {
+
+  test("parse arith") {
+    val a = Arith()
+    val e = "2 * (3 + 7)"
+    println(a.parseAll(a.expr, e))
+  }
+
+  test("parse sparql") {
+    val a = Sparql()
+    val e = """
+?emp      emplP:lastName   ?empName .
+?emp      emplP:manager    ?manager .
+?manager  emplP:lastName   ?managName
+"""
+    println(a.parseAll(a.triplepatterns, e))
+  }
+
+
+}