diff --git a/relaxng.c b/relaxng.c
index 8ac7ff7..f600d07 100644
--- a/relaxng.c
+++ b/relaxng.c
@@ -61,7 +61,7 @@
 
 #define DEBUG_LIST 1
 
-#define DEBUG_INCLUDE 1 
+#define DEBUG_INCLUDE 1
 
 #define DEBUG_ERROR 1
 
@@ -72,7 +72,7 @@
 
 #define MAX_ERROR 5
 
-#define TODO 								\
+#define TODO								\
     xmlGenericError(xmlGenericErrorContext,				\
 	    "Unimplemented block at %s:%d\n",				\
             __FILE__, __LINE__);
@@ -422,7 +422,7 @@
 
 /************************************************************************
  *									*
- * 		Some factorized error routines				*
+ *		Some factorized error routines				*
  *									*
  ************************************************************************/
 
@@ -565,9 +565,9 @@
 }
 
 /************************************************************************
- * 									*
- * 		Preliminary type checking interfaces			*
- * 									*
+ *									*
+ *		Preliminary type checking interfaces			*
+ *									*
  ************************************************************************/
 
 /**
@@ -655,9 +655,9 @@
 };
 
 /************************************************************************
- * 									*
- * 			Allocation functions				*
- * 									*
+ *									*
+ *			Allocation functions				*
+ *									*
  ************************************************************************/
 static void xmlRelaxNGFreeGrammar(xmlRelaxNGGrammarPtr grammar);
 static void xmlRelaxNGFreeDefine(xmlRelaxNGDefinePtr define);
@@ -1398,9 +1398,9 @@
 }
 
 /************************************************************************
- * 									*
- * 			Semi internal functions				*
- * 									*
+ *									*
+ *			Semi internal functions				*
+ *									*
  ************************************************************************/
 
 /**
@@ -1430,9 +1430,9 @@
 }
 
 /************************************************************************
- * 									*
- * 			Document functions				*
- * 									*
+ *									*
+ *			Document functions				*
+ *									*
  ************************************************************************/
 static xmlDocPtr xmlRelaxNGCleanupDoc(xmlRelaxNGParserCtxtPtr ctxt,
                                       xmlDocPtr doc);
@@ -2008,9 +2008,9 @@
 }
 
 /************************************************************************
- * 									*
- * 			Error functions					*
- * 									*
+ *									*
+ *			Error functions					*
+ *									*
  ************************************************************************/
 
 #define VALID_ERR(a) xmlRelaxNGAddValidError(ctxt, a, NULL, NULL, 0);
@@ -2361,7 +2361,7 @@
      * generate the error directly
      */
     if (((ctxt->flags & FLAGS_IGNORABLE) == 0) ||
-    	 (ctxt->flags & FLAGS_NEGATIVE)) {
+	 (ctxt->flags & FLAGS_NEGATIVE)) {
         xmlNodePtr node, seq;
 
         /*
@@ -2391,9 +2391,9 @@
 
 
 /************************************************************************
- * 									*
- * 			Type library hooks				*
- * 									*
+ *									*
+ *			Type library hooks				*
+ *									*
  ************************************************************************/
 static xmlChar *xmlRelaxNGNormalize(xmlRelaxNGValidCtxtPtr ctxt,
                                     const xmlChar * str);
@@ -2848,12 +2848,12 @@
 }
 
 /************************************************************************
- * 									*
- * 		Compiling element content into regexp			*
- * 									*
+ *									*
+ *		Compiling element content into regexp			*
+ *									*
  * Sometime the element content can be compiled into a pure regexp,	*
  * This allows a faster execution and streamability at that level	*
- * 									*
+ *									*
  ************************************************************************/
 
 /* from automata.c but not exported */
@@ -3326,9 +3326,9 @@
 }
 
 /************************************************************************
- * 									*
- * 			Parsing functions				*
- * 									*
+ *									*
+ *			Parsing functions				*
+ *									*
  ************************************************************************/
 
 static xmlRelaxNGDefinePtr xmlRelaxNGParseAttribute(xmlRelaxNGParserCtxtPtr
@@ -6706,9 +6706,9 @@
 }
 
 /************************************************************************
- * 									*
- * 			Reading RelaxNGs				*
- * 									*
+ *									*
+ *			Reading RelaxNGs				*
+ *									*
  ************************************************************************/
 
 /**
@@ -7522,7 +7522,7 @@
         xmlRngPErr(ctxt, (xmlNodePtr) doc,
 	           XML_RNGP_EMPTY, "xmlRelaxNGParse: %s is empty\n",
                    (ctxt->URL ? ctxt->URL : BAD_CAST "schemas"), NULL);
-	
+
         xmlFreeDoc(ctxt->document);
         ctxt->document = NULL;
         return (NULL);
@@ -7664,9 +7664,9 @@
 #ifdef LIBXML_OUTPUT_ENABLED
 
 /************************************************************************
- * 									*
- * 			Dump back a compiled form			*
- * 									*
+ *									*
+ *			Dump back a compiled form			*
+ *									*
  ************************************************************************/
 static void xmlRelaxNGDumpDefine(FILE * output,
                                  xmlRelaxNGDefinePtr define);
@@ -7807,7 +7807,7 @@
  * xmlRelaxNGDumpGrammar:
  * @output:  the file output
  * @grammar:  a grammar structure
- * @top:  is this a top grammar 
+ * @top:  is this a top grammar
  *
  * Dump a RelaxNG structure back
  */
@@ -7900,9 +7900,9 @@
 #endif /* LIBXML_OUTPUT_ENABLED */
 
 /************************************************************************
- * 									*
- * 		Validation of compiled content				*
- * 									*
+ *									*
+ *		Validation of compiled content				*
+ *									*
  ************************************************************************/
 static int xmlRelaxNGValidateDefinition(xmlRelaxNGValidCtxtPtr ctxt,
                                         xmlRelaxNGDefinePtr define);
@@ -8045,9 +8045,9 @@
 }
 
 /************************************************************************
- * 									*
- * 		Progressive validation of when possible			*
- * 									*
+ *									*
+ *		Progressive validation of when possible			*
+ *									*
  ************************************************************************/
 static int xmlRelaxNGValidateAttributeList(xmlRelaxNGValidCtxtPtr ctxt,
                                            xmlRelaxNGDefinePtr defines);
@@ -8481,9 +8481,9 @@
 }
 
 /************************************************************************
- * 									*
- * 		Generic interpreted validation implementation		*
- * 									*
+ *									*
+ *		Generic interpreted validation implementation		*
+ *									*
  ************************************************************************/
 static int xmlRelaxNGValidateValue(xmlRelaxNGValidCtxtPtr ctxt,
                                    xmlRelaxNGDefinePtr define);
@@ -10843,9 +10843,9 @@
     return;
 }
 /************************************************************************
- * 									*
- * 			Validation interfaces				*
- * 									*
+ *									*
+ *			Validation interfaces				*
+ *									*
  ************************************************************************/
 
 /**