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diff --git a/libical/src/libical/icalparser.h b/libical/src/libical/icalparser.h
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+/* -*- Mode: C -*- */
+/*======================================================================
+  FILE: icalparser.h
+  CREATOR: eric 20 April 1999
+  
+  $Id$
+
+
+  (C) COPYRIGHT 1999 Eric Busboom 
+  http://www.softwarestudio.org
+
+  The contents of this file are subject to the Mozilla Public License
+  Version 1.0 (the "License"); you may not use this file except in
+  compliance with the License. You may obtain a copy of the License at
+  http://www.mozilla.org/MPL/
+ 
+  Software distributed under the License is distributed on an "AS IS"
+  basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+  the License for the specific language governing rights and
+  limitations under the License.
+
+  The original author is Eric Busboom
+  The original code is icalparser.h
+
+======================================================================*/
+
+
+#ifndef ICALPARSER_H
+#define ICALPARSER_H
+
+#include "ical.h"
+#include <stdio.h> /* For FILE* */
+
+typedef void* icalparser;
+typedef enum icalparser_state {
+    ICALPARSER_ERROR,
+    ICALPARSER_SUCCESS,
+    ICALPARSER_BEGIN_COMP,
+    ICALPARSER_END_COMP,
+    ICALPARSER_IN_PROGRESS
+} icalparser_state;
+
+
+/***********************************************************************
+ * Message oriented parsing.  icalparser_parse takes a string that
+ * holds the text ( in RFC 2445 format ) and returns a pointer to an
+ * icalcomponent. The caller owns the memory. line_gen_func is a
+ * pointer to a function that returns one content line per invocation
+ **********************************************************************/
+
+icalcomponent* icalparser_parse(icalparser *parser,
+				char* (*line_gen_func)(char *s, size_t size, void *d));
+
+/* A simple, and incorrect interface - can only return one component*/
+icalcomponent* icalparser_parse_string(char* str);
+
+
+/***********************************************************************
+ * Line-oriented parsing. 
+ * 
+ * Create a new parser via icalparse_new_parser, then add ines one at
+ * a time with icalparse_add_line(). icalparser_add_line() will return
+ * non-zero when it has finished with a component.
+ ***********************************************************************/
+
+icalparser* icalparser_new();
+void icalparser_set_gen_data(icalparser* parser, void* data);
+icalcomponent* icalparser_add_line(icalparser* parser, char* str );
+icalcomponent* icalparser_claim(icalparser* parser);
+icalcomponent* icalparser_clean(icalparser* parser);
+icalparser_state icalparser_get_state(icalparser* parser);
+void icalparser_free(icalparser* parser);
+
+/***********************************************************************
+ * Parser support functions
+ ***********************************************************************/
+
+/* Use the flex/bison parser to turn a string into a value type */
+icalvalue*  icalparser_parse_value(icalvalue_kind kind, char* str, icalcomponent** errors);
+
+/* Given a line generator function, return a single iCal content line.*/
+char* icalparser_get_line(icalparser* parser, char* (*line_gen_func)(char *s, size_t size, void *d));
+
+
+/* a line_gen_function that returns lines from a string. To use it,
+   set string_line_generator_str to point to the input string, and set
+   string_line_generator_pos to 0. These globals make the routine not
+   thead-safe.  */
+
+extern char* string_line_generator_str;
+extern char* string_line_generator_pos;
+char* string_line_generator(char *out, size_t buf_size, void *d);
+
+#endif /* !ICALPARSE_H */