report improvement more tests Daniel

* schematron.c: report improvement
* test/schematron/zvon* result/schematron/zvon*: more tests
Daniel
diff --git a/test/schematron/zvon12.sct b/test/schematron/zvon12.sct
new file mode 100644
index 0000000..049b125
--- /dev/null
+++ b/test/schematron/zvon12.sct
@@ -0,0 +1,8 @@
+<schema xmlns="http://www.ascc.net/xml/schematron" >
+     <pattern name="Number of characters in an abbreviation">
+          <rule context="BBB">
+               <report test="string-length(@bbb) &lt; 2">There is not enough letters in the abbreviation</report>
+               <report test="string-length(@bbb) > 3">There is too much letters in the abbreviation</report>
+          </rule>
+     </pattern>
+</schema>