diff --git a/shared/tools/ldf2bgf b/shared/tools/ldf2bgf
index c612b790..8d60e859 100755
--- a/shared/tools/ldf2bgf
+++ b/shared/tools/ldf2bgf
@@ -1,20 +1,24 @@
-#! /bin/sh
+#!/bin/sh
 
-# Get our hands on the languedoc basedir
 LOCAL=${PWD}
 cd `dirname $0`
 cd ../..
 SLPS=${PWD}
 cd ${LOCAL}
 
-if [ $# -ne 2 ]; then
-    echo "This tool transforms Language Document Format to BNF-like Grammar Format"
-    echo "Usage: ldf2bgf <input-language-document> <output-grammar>"
-    exit 1
-elif [ ! -r $1 ]; then
+if [ ! -r $1 ]; then
     echo "Oops: $1 not found or not readable."
     exit 1
-else
+elif [ $# -eq 2 ]
+then
     rm -f $2
     xsltproc ${SLPS}/shared/xsl/ldf2bgf.xslt $1 > $2
+elif [ $# -eq 1 ]
+then
+    xsltproc ${SLPS}/shared/xsl/ldf2bgf.xslt $1 > ${LOCAL}/`basename $1 .ldf`.bgf
+else
+    echo "This tool transforms Language Document Format to BNF-like Grammar Format"
+    echo "Usage: ldf2bgf <input-language-document> [<output-grammar>]"
+    exit 2
 fi
+
diff --git a/shared/xsd/Makefile b/shared/xsd/Makefile
index 687f7d44..2efb265b 100644
--- a/shared/xsd/Makefile
+++ b/shared/xsd/Makefile
@@ -1,8 +1,12 @@
+validator = ../../download/msv/msv.jar
+
 build:
 
+test:
+	ls -1 *.xsd | xargs -n1 java -jar ${validator}
+
 clean:
-	rm -rf bin
-	rm -rf obj
-	rm -rf *.user
-	rm -rf *.suo
+	rm -rf bin obj
+	rm -f *.user
+	rm -f *.suo
 
diff --git a/shared/xsl/Makefile b/shared/xsl/Makefile
index f755e634..b01c4ff3 100644
--- a/shared/xsl/Makefile
+++ b/shared/xsl/Makefile
@@ -3,4 +3,6 @@ build:
 test:
 
 clean:
-
+	rm -rf bin obj
+	rm -f *.user
+	rm -f *.suo
diff --git a/shared/xsl/ldf2bgf.xslt b/shared/xsl/ldf2bgf.xslt
index 48031acb..ca1ccdc3 100644
--- a/shared/xsl/ldf2bgf.xslt
+++ b/shared/xsl/ldf2bgf.xslt
@@ -11,7 +11,7 @@
   </xsl:template>
 
   <xsl:template match="grammar">
-    <xsl:copy-of select="@*|node()"/>
+    <xsl:copy-of select="node()"/>
   </xsl:template>
 
   <xsl:template match="text"/>
diff --git a/topics/extraction/ldf2bgf/Makefile b/topics/extraction/ldf2bgf/Makefile
new file mode 100644
index 00000000..076eb4aa
--- /dev/null
+++ b/topics/extraction/ldf2bgf/Makefile
@@ -0,0 +1,14 @@
+ldf2bgf = ../../../shared/tools/ldf2bgf
+validator = ../../../download/msv/msv.jar
+bgfxsd = ../../../shared/xsd/bgf.xsd
+
+all:
+	make clean
+	make test
+
+test:
+	find ../../.. -name "*.ldf" | xargs -n1 ${ldf2bgf}
+	ls -1 *.bgf | xargs java -jar ${validator} ${bgfxsd}
+
+clean:
+	rm -f *.bgf