XER support
git-svn-id: https://asn1c.svn.sourceforge.net/svnroot/asn1c/trunk@365 59561ff5-6e30-0410-9f3c-9617f08c8826
diff --git a/skeletons/xer_encoder.h b/skeletons/xer_encoder.h
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--- /dev/null
+++ b/skeletons/xer_encoder.h
@@ -0,0 +1,51 @@
+/*-
+ * Copyright (c) 2004 Lev Walkin <vlm@lionet.info>. All rights reserved.
+ * Redistribution and modifications are permitted subject to BSD license.
+ */
+#ifndef _XER_ENCODER_H_
+#define _XER_ENCODER_H_
+
+#include <constr_TYPE.h>
+
+struct asn1_TYPE_descriptor_s; /* Forward declaration */
+
+/* Flags used by the xer_encode() and (*xer_type_encoder_f), defined below */
+enum xer_encoder_flags_e {
+ /* Mode of encoding */
+ XER_F_BASIC = 0x01, /* BASIC-XER (pretty-printing) */
+ XER_F_CANONICAL = 0x02, /* Canonical XER (strict rules, unreadable) */
+};
+
+/*
+ * The XER encoder of any type. May be invoked by the application.
+ */
+asn_enc_rval_t xer_encode(struct asn1_TYPE_descriptor_s *type_descriptor,
+ void *struct_ptr, /* Structure to be encoded */
+ enum xer_encoder_flags_e xer_flags,
+ asn_app_consume_bytes_f *consume_bytes_cb,
+ void *app_key /* Arbitrary callback argument */
+ );
+
+/*
+ * The variant of the above function which dumps the BASIC-XER (XER_F_BASIC)
+ * output into the chosen file pointer.
+ * RETURN VALUES:
+ * 0: The structure is printed.
+ * -1: Problem printing the structure.
+ * WARNING: No sensible errno value is returned.
+ */
+int xer_fprint(FILE *stream, struct asn1_TYPE_descriptor_s *td, void *sptr);
+
+/*
+ * Type of the generic XER encoder.
+ */
+typedef asn_enc_rval_t (xer_type_encoder_f)(
+ struct asn1_TYPE_descriptor_s *type_descriptor,
+ void *struct_ptr, /* Structure to be encoded */
+ int ilevel, /* Level of indentation */
+ enum xer_encoder_flags_e xer_flags,
+ asn_app_consume_bytes_f *consume_bytes_cb, /* Callback */
+ void *app_key /* Arbitrary callback argument */
+ );
+
+#endif /* _XER_ENCODER_H_ */