Experiment with porting SGML to YAP, and trying to preserve SWI code as much

as possible.

packages/sgml/model.h

@@ -0,0 +1,47 @@
+/*  $Id$
+
+    Part of SWI-Prolog
+
+    Author:        Jan Wielemaker
+    E-mail:        jan@swi.psy.uva.nl
+    WWW:           http://www.swi-prolog.org
+    Copyright (C): 1985-2002, University of Amsterdam
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Lesser General Public
+    License as published by the Free Software Foundation; either
+    version 2.1 of the License, or (at your option) any later version.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public
+    License along with this library; if not, write to the Free Software
+    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+*/
+
+#ifndef MODEL_H_INCLUDED
+#define MODEL_H_INCLUDED
+
+#define MAXOMITTED 32
+
+#define CDATA_ELEMENT	((dtd_element *)1)
+
+typedef struct _dtd_state
+{ struct _state_transition *transitions;
+  struct _state_expander *expander;
+} dtd_state;
+
+dtd_state      *new_dtd_state(void);
+dtd_state *	make_dtd_transition(dtd_state *here, dtd_element *e);
+int		same_state(dtd_state *final, dtd_state *here);
+int 		find_omitted_path(dtd_state *state, dtd_element *e,
+				  dtd_element **path);
+dtd_state *	make_state_engine(dtd_element *e);
+void		free_state_engine(dtd_state *state);
+void		state_allows_for(dtd_state *state,
+				 dtd_element **allow, int *n);
+
+#endif /*MODEL_H_INCLUDED*/