diff --git a/xmlIO.h b/xmlIO.h
index d6edcae..bdeecc3 100644
--- a/xmlIO.h
+++ b/xmlIO.h
@@ -11,6 +11,7 @@
 
 #include <stdio.h>
 #include "tree.h"
+#include "encoding.h"
 
 #ifdef __cplusplus
 extern "C" {
@@ -19,13 +20,10 @@
 typedef struct xmlParserInputBuffer {
     /* Inputs */
     FILE          *file;    /* Input on file handler */
+    void*        gzfile;    /* Input on a compressed stream */
     int              fd;    /* Input on a file descriptor */
-/**********
-#ifdef HAVE_ZLIB_H
-    gzFile       gzfile;     Input on a compressed stream
-#endif
- */
     
+    xmlCharEncodingHandlerPtr encoder; /* I18N conversions to UTF-8 */
     
     xmlBufferPtr buffer;    /* Local buffer encoded in  UTF-8 */
 
@@ -33,6 +31,21 @@
 
 typedef xmlParserInputBuffer *xmlParserInputBufferPtr;
 
+/*
+ * Interfaces
+ */
+
+xmlParserInputBufferPtr xmlParserInputBufferCreateFilename(const char *filename,
+                                                       xmlCharEncoding enc);
+xmlParserInputBufferPtr xmlParserInputBufferCreateFile(FILE *file,
+                                                       xmlCharEncoding enc);
+xmlParserInputBufferPtr xmlParserInputBufferCreateFd(int fd, xmlCharEncoding enc);
+
+int xmlParserInputBufferRead(xmlParserInputBufferPtr in, int len);
+int xmlParserInputBufferGrow(xmlParserInputBufferPtr in, int len);
+
+void xmlFreeParserInputBuffer(xmlParserInputBufferPtr in);
+
 #ifdef __cplusplus
 }
 #endif