corrected some lookaheads parsing delete statements

Author: wumpz

README.md

@@ -42,6 +42,7 @@ Also I would like to know about needed examples or documentation stuff.
 
 ## Extensions in the latest SNAPSHOT version 0.9.6
 
+* support for delete with join table
 * support for Alter with multiple ADD/DROP expressions
 * support for **ON DELETE SET NULL** for create table
 * added AST node support for subselect, withitem, function, case when

src/main/jjtree/net/sf/jsqlparser/parser/JSqlParserCC.jjt

@@ -638,9 +638,12 @@ Delete Delete():
 	List<OrderByElement> orderByElements;
 }
 {
-    <K_DELETE> [table=TableWithAlias() { tables.add(table); } 
-          ("," table=TableWithAlias() { tables.add(table); } )*] [<K_FROM>]
-    [ table=TableWithAlias()      joins=JoinsList() ]
+    <K_DELETE> [LOOKAHEAD(2) (table=TableWithAlias() { tables.add(table); } 
+          ("," table=TableWithAlias() { tables.add(table); } )* 
+    <K_FROM> | <K_FROM>)]
+
+    [ table=TableWithAlias()
+      joins=JoinsList() ]
     [where=WhereClause() { delete.setWhere(where); } ]
     [orderByElements = OrderByElements() { delete.setOrderByElements(orderByElements); } ]
     [limit=PlainLimit() {delete.setLimit(limit); } ]