Fix exponential notation usage in svg path

Author: vitali-pr

svg/src/main/java/com/itextpdf/svg/renderers/impl/PathSvgNodeRenderer.java

@@ -328,7 +328,7 @@ String separateDecimalPoints(String input) {
 
             if (c == '.') {
                 fractionalPartAfterDecimalPoint = true;
-            } else if (c == 'e') {
+            } else if (Character.toLowerCase(c) == 'e') {
                 exponentSignMagnitude = true;
             }
 

svg/src/test/java/com/itextpdf/svg/renderers/impl/PathParsingTest.java

@@ -197,4 +197,13 @@ public void exponentInNumberTest01() {
         Assert.assertEquals(expected, actual);
     }
 
+    @Test
+    public void exponentInNumberTest02() {
+        PathSvgNodeRenderer path = new PathSvgNodeRenderer();
+        String input = "C 268.88888888888886 67.97916666666663e+10 331.1111111111111 -2.842170943040401E-14 393.3333333333333 -2.842170943040401E-14";
+
+        String expected = "C 268.88888888888886 67.97916666666663e+10 331.1111111111111 -2.842170943040401E-14 393.3333333333333 -2.842170943040401E-14";
+        String actual = path.separateDecimalPoints(input);
+        Assert.assertEquals(expected, actual);
+    }
 }