parser updated oracle recursives

Author: wumpz

src/main/javacc/net/sf/jsqlparser/parser/JSqlParserCC.jj

@@ -157,6 +157,7 @@ import net.sf.jsqlparser.statement.update.Update;
  * The parser generated by JavaCC
  */
 public class CCJSqlParser {
+	private boolean allowOraclePrior = false;
 } 
 
 
@@ -255,6 +256,7 @@ TOKEN: /* SQL Keywords. prefixed with K_ to avoid name clashes */
 |	<K_REFERENCES:"REFERENCES">
 |	<K_START:"START">
 |	<K_CONNECT:"CONNECT">
+|	<K_PRIOR:"PRIOR">
 }
 
 
@@ -1084,7 +1086,7 @@ Expression WhereClause():
 Expression OracleHierarchicalQueryClause(): {}
 {
 	[ <K_START> <K_WITH>  AndExpression() ]
-	<K_CONNECT> <K_BY> [ "NOCYCLE" ]  AndExpression()
+	<K_CONNECT> <K_BY> [ "NOCYCLE" ]  { allowOraclePrior=true; } AndExpression() { allowOraclePrior=false; }
 
 	{ return null; }
 }
@@ -1303,6 +1305,7 @@ Expression RegularCondition():
 }
 {
 
+	[ <K_PRIOR> ]
 	[ <K_NOT> { not = true; } ] 
 	leftExpression=ComparisonItem() { result = leftExpression; }
 
@@ -1319,6 +1322,7 @@ Expression RegularCondition():
 	)
 	rightExpression=ComparisonItem()
 
+	[ <K_PRIOR> ]
 	[ "(+)" { oracleJoin=EqualsTo.ORACLE_JOIN_LEFT; } ]
 
 	{