Import LinuxCNC source tree

nc_files/filtertest.py

@@ -0,0 +1,19 @@
+import time
+import sys
+
+for i in range(0,100):
+    try:
+        # simulate calculation time
+        time.sleep(.1)
+
+        # output a line of gcode
+        print('G0 X1', file=sys.stdout)
+
+        # update progress
+        print('FILTER_PROGRESS={}'.format(i), file=sys.stderr)
+    except:
+        # This causes an error message
+        print('Error; But this was only a test', file=sys.stderr)
+        raise SystemExit(1)
+
+print('M2', file=sys.stdout)