fix FOP-2628

git-svn-id: https://svn.apache.org/repos/asf/xmlgraphics/fop/trunk@1806679 13f79535-47bb-0310-9956-ffa450edef68

fop-core/src/main/java/org/apache/fop/datatypes/URISpecification.java

@@ -72,7 +72,7 @@ public final class URISpecification {
     }
 
     private static boolean isAlpha(char ch) {
-        return (ch >= 'A' && ch <= 'Z') || (ch >= 'A' && ch <= 'z');
+        return (ch >= 'A' && ch <= 'Z') || (ch >= 'a' && ch <= 'z');
     }
 
     private static boolean isHexDigit(char ch) {

fop-core/src/test/java/org/apache/fop/datatypes/URISpecificationTestCase.java

@@ -60,6 +60,10 @@ public class URISpecificationTestCase {
 
         actual = URISpecification.escapeURI("http://localhost/test test.pdf#page=6");
         assertEquals("http://localhost/test%20test.pdf#page=6", actual);
+
+        actual = URISpecification.escapeURI("http://localhost/test^test.pdf");
+        assertEquals("http://localhost/test%5Etest.pdf", actual);
+
     }
 
 }