- corrected S_DOUBLE parsing

Author: wumpz

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

@@ -245,7 +245,9 @@ TOKEN : /* Numeric Constants */
 {
 	< S_DOUBLE: ((<S_INTEGER>)? "." <S_INTEGER> ( ["e","E"] ([ "-","+"])? <S_INTEGER> )? 
 				|
-				(<S_INTEGER>)+ (".")? ["e","E"] ([ "-","+"])? (<S_INTEGER>)+
+				<S_INTEGER> "." (["e","E"] ([ "-","+"])? <S_INTEGER>)?
+				|
+				<S_INTEGER> ["e","E"] ([ "-","+"])? <S_INTEGER>
 				)>
   | 	< S_INTEGER: ( <DIGIT> )+ >
   | 	< #DIGIT: ["0" - "9"] >

src/test/java/net/sf/jsqlparser/test/select/SelectTest.java

@@ -2,6 +2,7 @@
 
 import java.io.IOException;
 import java.io.StringReader;
+import static junit.framework.Assert.assertEquals;
 import junit.framework.TestCase;
 import net.sf.jsqlparser.JSQLParserException;
 import net.sf.jsqlparser.expression.BinaryExpression;
@@ -502,6 +503,30 @@ public void testDouble() throws JSQLParserException {
 				.getRightExpression()).getValue(), 0);
 		assertStatementCanBeDeparsedAs(select, statement);
 	}
+	
+	public void testDouble2() throws JSQLParserException {
+		String statement = "SELECT 1.e22 FROM mytable";
+		Select select = (Select) parserManager.parse(new StringReader(statement));
+
+		assertEquals(1e22, ((DoubleValue) ((SelectExpressionItem) ((PlainSelect) select.getSelectBody())
+				.getSelectItems().get(0)).getExpression()).getValue(), 0);
+	}
+	
+	public void testDouble3() throws JSQLParserException {
+		String statement = "SELECT 1. FROM mytable";
+		Select select = (Select) parserManager.parse(new StringReader(statement));
+
+		assertEquals(1.0, ((DoubleValue) ((SelectExpressionItem) ((PlainSelect) select.getSelectBody())
+				.getSelectItems().get(0)).getExpression()).getValue(), 0);
+	}
+	
+	public void testDouble4() throws JSQLParserException {
+		String statement = "SELECT 1.2e22 FROM mytable";
+		Select select = (Select) parserManager.parse(new StringReader(statement));
+
+		assertEquals(1.2e22, ((DoubleValue) ((SelectExpressionItem) ((PlainSelect) select.getSelectBody())
+				.getSelectItems().get(0)).getExpression()).getValue(), 0);
+	}
 
 	public void testWith() throws JSQLParserException {
 		String statement = "WITH DINFO (DEPTNO, AVGSALARY, EMPCOUNT) AS "