update grammar

relaton · Sep 15, 2020 · 7cd71fc · 7cd71fc
1 parent 6fd1975
commit 7cd71fc
Showing 1 changed file with 7 additions and 2 deletions.
diff --git a/grammars/isodoc.rng b/grammars/isodoc.rng
@@ -64,6 +64,11 @@
             </choice>
           </attribute>
         </optional>
+        <optional>
+          <attribute name="droploc">
+            <data type="boolean"/>
+          </attribute>
+        </optional>
         <text/>
       </element>
     </define>
@@ -880,7 +885,7 @@
       <oneOrMore>
         <choice>
           <ref name="content"/>
-          <ref name="preface_abstract"/>
+          <ref name="abstract"/>
           <ref name="foreword"/>
           <ref name="introduction"/>
           <ref name="acknowledgements"/>
@@ -977,7 +982,7 @@
       <ref name="Content-Section"/>
     </element>
   </define>
-  <define name="preface_abstract">
+  <define name="abstract">
     <element name="abstract">
       <ref name="Content-Section"/>
     </element>