DBC 파일 로드 기능 추가 및 메시지와 시그널 추출 로직 구현

Data_Parsing.py

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+import re
+
+def load_dbc_file(file_path):
+    try:
+        with open(file_path, 'r') as file:
+            content = file.read()
+        # print(f"[INFO] Successfully loaded DBC file: {file_path}")
+
+        # 메시지와 시그널을 추출하는 정규 표현식
+        message_pattern = re.compile(r'BO_\s+(\d+)\s+(\w+)\s*:\s*(\d+)\s+(\w+)')
+        signal_pattern = re.compile(r'SG_\s+(\w+)\s*:\s*(\d+)\|(\d+)@(\d+)\+\s*\(([^,]+),\s*([^)]+)\)')
+
+        # 메시지와 시그널 매칭
+        messages = {}
+        current_message = None
+
+        for line in content.splitlines():
+            line = line.strip()
+            if not line:
+                current_message = None
+                continue
+
+            message_match = message_pattern.match(line)
+            if message_match:
+                decimal_id = int(message_match.group(1))
+                hex_id = f"0x{decimal_id:03X}"
+                message_name = message_match.group(2)
+                dlc = int(message_match.group(3))
+                tx_ecu_name = message_match.group(4)
+                current_message = message_name
+                messages[current_message] = {
+                    "ID": hex_id,
+                    "DLC": dlc,
+                    "TX ECU name": tx_ecu_name,
+                    "Signals": []
+                }
+            elif current_message:
+                signal_match = signal_pattern.match(line)
+                if signal_match:
+                    signal_name = signal_match.group(1)
+                    msb = int(signal_match.group(2))
+                    length = int(signal_match.group(3))
+                    byte_order = int(signal_match.group(4))
+                    factor = float(signal_match.group(5))
+                    offset = float(signal_match.group(6))
+                    messages[current_message]["Signals"].append({
+                        "Signal name": signal_name,
+                        "msb": msb,
+                        "Length": length,
+                        "Byte order": byte_order,
+                        "Factor": factor,
+                        "Offset": offset
+                    })
+
+        return messages
+
+    except Exception as e:
+        print(f"[ERROR] Failed to parse DBC file: {e}")
+        return None
+
+if __name__ == "__main__":
+    file_path = 'C:/Users/MSI/Desktop/python/motorola_tx/MOTOROLA_V2.dbc'
+    messages = load_dbc_file(file_path)
+    print(messages)
+    print("\n")
+    # if messages:
+    #     for message_name, message_info in messages.items():
+    #         print(f"[INFO] Message: {message_name}, Info: {message_info['id']}, {message_info['dlc']}, {message_info['tx_ecu_name']}")
+    #         for signal in message_info['signals']:
+    #             print(f"  Signal: {signal}")