1 files changed, 53 insertions, 0 deletions
diff --git a/src/scan_states.py b/src/scan_states.py
new file mode 100644
index 0000000..7f69fdd
--- /dev/null
+++ b/src/scan_states.py
@@ -0,0 +1,53 @@
+#!/usr/bin/python
+# python script to generate an overview of the staes based on the input lex file.
+#
+# Copyright (C) 1997-2019 by Dimitri van Heesch.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation under the terms of the GNU General Public License is hereby
+# granted. No representations are made about the suitability of this software
+# for any purpose. It is provided "as is" without express or implied warranty.
+# See the GNU General Public License for more details.
+#
+# Documents produced by Doxygen are derivative works derived from the
+# input used in their production; they are not affected by this license.
+#
+import sys
+import os
+import re
+
+
+def main():
+    if len(sys.argv)!=2:
+		sys.exit('Usage: %s <lex_file>' % sys.argv[0])
+
+    lex_file = sys.argv[1]
+    if (os.path.exists(lex_file)):
+        #write preamble
+        print("#define scanStateToString(x) case x: resultString = #x; break;");
+        print("static const char *stateToString(int state)");
+        print("{");
+        print("  const char *resultString;");
+        print("  switch(state)");
+        print("  {");
+        print("    scanStateToString(INITIAL)");
+
+        with open(lex_file) as f:
+            for line in f:
+                if re.search(r'^%x', line) or  re.search(r'^%s', line):
+                    print("    scanStateToString(%s)"%line.split()[1]);
+                elif re.search(r'^%%', line):
+                    break
+                else:
+                    pass
+            f.close()
+        #write post
+        print("    default: resultString = \"Unknown\"; break;")
+        print("  }")
+        print("  return resultString;")
+        print("}")
+
+
+
+if __name__ == '__main__':
+	main()