yEd format decoder implementation

2024-01-06 01:46:36 +03:00
commit fc725a2042
12 changed files with 3393 additions and 0 deletions
--- a/cyberiadaml.h
+++ b/cyberiadaml.h
@@ -0,0 +1,140 @@
+/* -----------------------------------------------------------------------------
+ * The Cyberiada GraphML library implemention
+ *
+ * The C library header
+ *
+ * Copyright (C) 2024 Alexey Fedoseev <aleksey@fedoseev.net>
+ *
+ * This program 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 3 of the License, or (at your option) any later version.
+ * 
+ * This program 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 General Public License
+ * along with this program. If not, see https://www.gnu.org/licenses/
+ * ----------------------------------------------------------------------------- */
+
+#ifndef __CYBERIADA_ML_H
+#define __CYBERIADA_ML_H
+
+#include <stdio.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* -----------------------------------------------------------------------------
+ * The Cyberiada GraphML library types
+ * ----------------------------------------------------------------------------- */
+
+/* SM node types: */	
+typedef enum {
+	cybNodeInitial = 0,		/* initial node */
+	cybNodeSimple,			/* simple node */
+	cybNodeComplex,			/* complex node */
+	cybNodeComment			/* comment node */
+} CyberiadaNodeType;
+
+/* SM node geometry */
+
+typedef struct {
+	double x, y;
+} CyberiadaPoint;
+
+typedef struct {
+	double x, y, width, height;
+} CyberiadaRect;
+
+typedef struct _CyberiadaPolyline {
+	CyberiadaPoint 				point;
+	struct _CyberiadaPolyline*	next;
+} CyberiadaPolyline;
+
+/* SM node (state) */
+typedef struct _CyberiadaNode {
+	char*					id;
+	unsigned int			id_len;
+	char*					title;
+	unsigned int			title_len;
+	CyberiadaNodeType		type;
+	char*					action;
+	unsigned int			action_len;
+	CyberiadaRect			geometry_rect;
+	struct _CyberiadaNode* 	next;
+	struct _CyberiadaNode* 	parent;
+	struct _CyberiadaNode* 	children;
+} CyberiadaNode;
+
+/* SM edge (transition) */
+typedef struct _CyberiadaEdge {
+	char*						id;
+	unsigned int				id_len;
+	CyberiadaNode*				source;
+	CyberiadaNode*				target;
+	char*						action;
+	unsigned int				action_len;
+	CyberiadaPoint				geometry_source_point;
+	CyberiadaPoint				geometry_target_point;
+	CyberiadaPolyline*			geometry_polyline;
+	struct _CyberiadaEdge*		next;
+} CyberiadaEdge;
+
+/* SM graph (state machine) */
+typedef struct {
+	char* 			name;
+	unsigned int	name_len;
+	char*			version;
+	unsigned int	version_len;
+	CyberiadaNode*	nodes;
+	CyberiadaNode*	start;
+	CyberiadaEdge*	edges;
+} CyberiadaSM;
+
+/* SM GraphML supported formats */
+typedef enum {
+	cybxmlYED = 0,
+	cybxmlCyberiada
+} CyberiadaXMLFormat;
+	
+/* -----------------------------------------------------------------------------
+ * The Cyberiada GraphML error codes
+ * ----------------------------------------------------------------------------- */
+
+#define CYBERIADA_NO_ERROR				0
+#define CYBERIADA_XML_ERROR 			1
+#define CYBERIADA_FORMAT_ERROR			2
+#define CYBERIADA_NOT_FOUND				3
+#define CYBERIADA_BAD_PARAMETER			4
+
+/* -----------------------------------------------------------------------------
+ * The Cyberiada GraphML library functions
+ * ----------------------------------------------------------------------------- */
+
+	/* Allocate the SM structure in memory (for heap usage) */
+	CyberiadaSM* cyberiada_create_sm();
+
+	/* Initialize the SM structure. Do not use the structure before the initialization! */
+	int cyberiada_init_sm(CyberiadaSM* sm);
+
+	/* Cleanup the content of the SM structure, free the conents memory */
+	int cyberiada_cleanup_sm(CyberiadaSM* sm);
+
+	/* Free the allocated SM structure (for heap usage) */
+	int cyberiada_destroy_sm(CyberiadaSM* sm);
+
+	/* Read an XML file and decode the SM structure */
+	int cyberiada_read_sm(CyberiadaSM* sm, const char* filename, CyberiadaXMLFormat format);
+	
+	/* Print the SM structure to stdout */
+	int cyberiada_print_sm(CyberiadaSM* sm);
+
+#ifdef __cplusplus
+}
+#endif
+	
+#endif