--- a/RelaxNG/publiset.rnc	dim. juin 12 14:28:07 2011 +0200
+++ b/RelaxNG/publiset.rnc	dim. juin 12 15:21:35 2011 +0200
@@ -17,7 +17,7 @@
 
 
 # =============================================================================
-#                                  Top level
+#                                  TOP LEVEL
 # =============================================================================
 
 # ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ composition ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
@@ -35,7 +35,7 @@
 base.attribute = attribute xml:base { xsd:anyURI }
 
 composition.content =
-   composition.metadata?,
+   composition.head?,
    (composition.file | composition.division)+
 
 # ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ selection ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
@@ -50,31 +50,33 @@
 selection.id.attribute = attribute xml:id { xsd:ID }
 
 selection.content =
-   selection.metadata?,
+   selection.head?,
    (selection.file | selection.division)+
 
 
 # =============================================================================
-#                                 Metadata level
+#                                  HEAD LEVEL
 # =============================================================================
 
-# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ metadata ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ head ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
-composition.metadata = element metadata {
-   metadata.attributes,
-   metadata.content
-}
-selection.metadata = element metadata { metadata.content }
+composition.head = element head { head.attributes, top.head.content }
+selection.head = element head { top.head.content }
+division.head = element head { division.head.content }
 
-metadata.attributes =
+head.attributes =
    remap.attributes
 
-metadata.content =
+top.head.content =
    (title, subtitle?)?
  & language?
  & author*
  & publisher?
  & source?
+division.head.content =
+   (title, subtitle?)?
+ & language?
+ & annotation*
 
 # ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ title, subtitle ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
@@ -142,7 +144,7 @@
 
 
 # =============================================================================
-#                                Division level
+#                                DIVISION LEVEL
 # =============================================================================
 
 composition.division = element division {
@@ -161,15 +163,15 @@
    base.attribute?
 
 composition.division.content =
-   composition.metadata?,
-   (composition.file | composition.division)+
+   composition.head?,
+   (composition.division | composition.file)+
 selection.division.content =
-   selection.metadata?,
-   (selection.file | selection.division)+
+   selection.head?,
+   (selection.division | selection.file)+
 
 
 # =============================================================================
-#                                  File level
+#                                  FILE LEVEL
 # =============================================================================
 
 # ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ file ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
@@ -179,15 +181,19 @@
 
 composition.file.attributes =
    xpath.attribute?
+ & transform.attribute?
  & remap.attributes
 selection.file.attributes =
    xpath.attribute?
+ & transform.attribute?
 xpath.attribute = attribute xpath { text }
+transform.attribute =
+   attribute transform {list { (xsd:token {pattern = "(xsl|regex):\S+"})+ }}
 
 file.content = xsd:anyURI
    
 # =============================================================================
-#                                 Inline level
+#                                 INLINE LEVEL
 # =============================================================================
 
 # ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ inlines ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
@@ -205,7 +211,7 @@
 
 
 # =============================================================================
-#                               Remap attributes
+#                               REMAP ATTRIBUTES
 # =============================================================================
 
 remap.attributes =