Made the code more robust and universal.

software/test_software/modbus_definition_file_reader.py

@@ -0,0 +1,56 @@
+""""
+ModBus definition file reader routines
+Copyright (C) 2025 M.T. Konstapel
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU 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 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/>.
+"""
+import yaml
+from yaml.loader import SafeLoader
+
+class definition_file_reader:
+
+    # initiate class: define name configuration files
+    def __init__(self, definition_file):
+        self.definition_file = definition_file
+
+    def read_settings(self):
+
+        if self.read_definition_file() == 0:
+            return 0
+
+        if self.test_definition_file() == 0:
+            return 0
+
+        return 1
+
+    def read_definition_file (self):
+        try:
+            with open(self.definition_file) as f:
+                self.definition_file_data = yaml.load(f, Loader=SafeLoader)
+        except:
+            print ("Definition file ./" + self.definition_file + " not found or syntax error in file.")
+            return 0
+        else:
+            return 1
+
+    # Test if all settings are pressent
+    def test_definition_file(self):
+        # Test is all expected settings are present
+        try:
+            tmp = self.definition_file_data['devices']
+        except:
+            print ("Error in the ModBus definition file.")
+            return 0
+        else:
+            return 1