* Language Document eXtentions added

* All references to it are updated accordingly, not all schemata are valid


git-svn-id: https://slps.svn.sourceforge.net/svnroot/slps@73 ab42f6e0-554d-0410-b580-99e487e6eeb2

shared/xsd/ldf.xsd

@@ -2,15 +2,14 @@
      xmlns:xsd="http://www.w3.org/2001/XMLSchema"
      xmlns:ldf="http://planet-sl.org/ldf"
      xmlns:bgf="http://planet-sl.org/bgf"
-     xmlns:ldxl="http://planet-sl.org/ldxl"
      xmlns:xhtml="http://www.w3.org/1999/xhtml/datatypes/"
      targetNamespace="http://planet-sl.org/ldf">
 
   <xsd:import namespace="http://planet-sl.org/bgf" schemaLocation="bgf.xsd"/>
 
   <xsd:annotation>
     <xsd:documentation>
-      The Language Document Format.
+      Language Document Format.
       This is basically a metamodel for language documents or documentations.
 
       Sample program tags:
@@ -161,24 +160,4 @@
     <xsd:anyAttribute namespace="##other" processContents="lax"/>
   </xsd:complexType>
 
-  <xsd:element name="reference" type="xsd:string">
-    <xsd:annotation>
-      <xsd:documentation>
-        A reference to a nonterminal
-        Generally, (reference)alpha(/reference) should mean something like
-        (a href="#alpha")alpha(/a)
-      </xsd:documentation>
-    </xsd:annotation>
-  </xsd:element>
-
-  <xsd:element name="tail" type="ldf:mixedType">
-    <xsd:annotation>
-      <xsd:documentation>
-        A documentation part that comes after the grammar in the resulting document,
-        yet precedes the grammar in the language document due to some idiosyncrasy.
-        This definition reuses the one from LDL, but this is not critical.
-      </xsd:documentation>
-    </xsd:annotation>
-  </xsd:element>
-
 </xsd:schema>

shared/xsd/ldx.xsd

@@ -0,0 +1,57 @@
+<xsd:schema
+  xmlns:xsd="http://www.w3.org/2001/XMLSchema"
+  xmlns:ldx="http://planet-sl.org/ldx"
+  xmlns:ldf="http://planet-sl.org/ldf"
+  xmlns:bgf="http://planet-sl.org/bgf"
+  targetNamespace="http://planet-sl.org/ldx">
+
+  <xsd:import namespace="http://planet-sl.org/ldf" schemaLocation="ldf.xsd"/>
+
+  <xsd:annotation>
+    <xsd:documentation>
+      Language Document eXtensions.
+
+      This is the schema collecting additional features available for language documents.
+      It re-uses content types defined by LDF.
+      By relying on a separate schema, it is possible to include LDX elements in XSD documents.
+      That, in turn, enables generation of LDF (not just BGF) documents from XSD documents.
+    </xsd:documentation>
+  </xsd:annotation>
+
+  <xsd:element name="reference" type="xsd:string">
+    <xsd:annotation>
+      <xsd:documentation>
+        A reference to a nonterminal
+        Generally, (reference)alpha(/reference) should mean something like
+        (a href="#alpha")alpha(/a)
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+
+  <xsd:element name="sample" type="ldf:sampleType">
+    <xsd:annotation>
+      <xsd:documentation>
+        A sample inside documentation is a sample defined by ldf.
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+
+  <xsd:element name="runnable" type="ldf:runnableType">
+    <xsd:annotation>
+      <xsd:documentation>
+        A runnable inside documentation is a runnable defined by ldf.
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+
+  <xsd:element name="tail" type="ldf:mixedType">
+    <xsd:annotation>
+      <xsd:documentation>
+        A documentation part that comes after the grammar in the resulting document,
+        yet precedes the grammar in the language document due to some idiosyncrasy.
+        This definition reuses the one from ldf, but this is not critical.
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+
+</xsd:schema>

shared/xsd/slps-xsd.csproj

@@ -42,6 +42,7 @@
     <None Include="bgf.xsd" />
     <None Include="btf.xsd" />
     <None Include="ldf.xsd" />
+    <None Include="ldx.xsd" />
     <None Include="xbgf.xsd" />
   </ItemGroup>
 </Project>

shared/xsd/xbgf.xsd

@@ -3,7 +3,7 @@
   xmlns:bgf="http://planet-sl.org/bgf"
   xmlns:xbgf="http://planet-sl.org/xbgf"
   xmlns:ldf="http://planet-sl.org/ldf"
-  xmlns:ldxl="http://planet-sl.org/ldxl"
+  xmlns:ldx="http://planet-sl.org/ldx"
   xmlns:xhtml="http://www.w3.org/1999/xhtml"
   targetNamespace="http://planet-sl.org/xbgf">
 
@@ -15,7 +15,7 @@
 
   <xsd:import namespace="http://planet-sl.org/bgf" schemaLocation="bgf.xsd"/>
   <xsd:import namespace="http://planet-sl.org/ldf" schemaLocation="ldf.xsd"/>
-
+ 
   <xsd:group name="transformation">
      <xsd:annotation>
       <xsd:documentation>
@@ -60,14 +60,14 @@
       <xsd:documentation>
         Add a production for a nonterminal to an existing definition.
         That is, the nonterminal is meant to be extended.
-        <ldxl:tail>
-        Use the <ldxl:reference>define</ldxl:reference> transformation if you want to resolve an undefined nonterminal.
+        <ldx:tail>
+        Use the <ldx:reference>define</ldx:reference> transformation if you want to resolve an undefined nonterminal.
 
-        Use the <ldxl:reference>introduce</ldxl:reference> transformation if you want to define a fresh nonterminal.
-        <ldf:sample language="http://planet-sl.org/xbgf">
+        Use the <ldx:reference>introduce</ldx:reference> transformation if you want to define a fresh nonterminal.
+        <ldx:sample language="http://planet-sl.org/xbgf">
           sorry, the sample is fake!
-        </ldf:sample>
-        </ldxl:tail>
+        </ldx:sample>
+        </ldx:tail>
       </xsd:documentation>
     </xsd:annotation>
     <xsd:complexType>