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+
+/*=============================================================================*\
+ * File: gfsmCommon.h
+ * Author: Bryan Jurish <moocow@ling.uni-potsdam.de>
+ * Description: finite state machine library: common definitions
+ *
+ * Copyright (c) 2004-2007 Bryan Jurish.
+ *
+ * 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
+ *=============================================================================*/
+
+/** \file gfsmCommon.h
+ *  \brief Commonly use typedefs and constants
+ */
+
+#ifndef _GFSM_COMMON_H
+#define _GFSM_COMMON_H
+
+#include <gfsmConfig.h>
+#include <glib.h>
+
+/*======================================================================
+ * Basic Types
+ */
+/** Type for elementary arc-labels */
+typedef guint16 gfsmLabelId;
+
+/** Type for extended arc-labels (parameters and return values) */
+typedef guint32 gfsmLabelVal;
+
+/** Type for elementary state identifiers */
+typedef guint32 gfsmStateId;
+
+/** Alias for state identifiers */
+typedef gfsmStateId gfsmNodeId;
+
+/** Type for arc weights */
+typedef gfloat gfsmWeight;
+
+/*======================================================================
+ * Vector types
+ */
+/** Type for sequence of (gfsmLabelVal)s */
+typedef GPtrArray gfsmLabelVector;
+
+/** Type for a sequence of (gfsmStateId)s */
+typedef GPtrArray gfsmStateIdVector;
+
+
+/*======================================================================
+ * Constants
+ */
+/** Constant epsilon label */
+extern const gfsmLabelId gfsmEpsilon;
+
+/** Constant label for pseudo-epsilon moves in 1st argument to compose() */
+extern const gfsmLabelId gfsmEpsilon1;
+
+/** Constant label for pseudo-epsilon moves in 2nd argument to compose() */
+extern const gfsmLabelId gfsmEpsilon2;
+
+/** Constant indicating missing alphabet key */
+extern const gpointer    gfsmNoKey;
+
+/** Constant indicating missing label */
+extern const gfsmLabelId gfsmNoLabel;
+
+/** Constant indicating missing state */
+extern const gfsmStateId gfsmNoState;
+
+/** Constant indicating missing weight
+ *  \warning Deprecated: prefer gfsm_sr_one()
+ */
+extern const gfsmWeight gfsmNoWeight;
+
+#endif /* _GFSM_COMMON_H */