Added custom linter files

Scripts/custom_linter.py

@@ -0,0 +1,63 @@
+import os
+from lxml import etree
+
+NAMESPACE = {'kgpz': 'https://www.koenigsberger-zeitungen.de'}
+SCRIPT_DIR = os.path.dirname(os.path.abspath(__file__))
+XML_DIR = os.path.abspath(os.path.join(SCRIPT_DIR, '..', 'XML'))
+
+def parse_xml_file(filepath):
+    try:
+        parser = etree.XMLParser(remove_blank_text=True)
+        tree = etree.parse(filepath, parser)
+        return tree.getroot()
+    except etree.ParseError as e:
+        print(f"Error parsing {filepath}: {e}")
+        return None
+
+def get_all_ids(root, tag):
+    return set(elem.get('id') for elem in root.xpath(f'.//kgpz:{tag}', namespaces=NAMESPACE))
+
+def check_references(beitrag_root, reference_data, filename):
+    errors = []
+    for ref_type, ref_tag in [('akteur', 'akteur'), ('kategorie', 'kategorie'), 
+                              ('ort', 'ort'), ('werk', 'werk')]:
+        for ref in beitrag_root.xpath(f'//kgpz:{ref_tag}', namespaces=NAMESPACE):
+            ref_id = ref.get('ref')
+            if ref_id not in reference_data[ref_type]:
+                line_number = ref.sourceline
+                errors.append((filename, line_number, f"INVALID REFERENCE ({ref_type}:{ref_id})"))
+    return errors
+
+def main():
+    reference_data = {
+        'akteur': get_all_ids(parse_xml_file(os.path.join(XML_DIR, 'akteure.xml')), 'akteur'),
+        'kategorie': get_all_ids(parse_xml_file(os.path.join(XML_DIR, 'kategorien.xml')), 'kategorie'),
+        'ort': get_all_ids(parse_xml_file(os.path.join(XML_DIR, 'orte.xml')), 'ort'),
+        'werk': get_all_ids(parse_xml_file(os.path.join(XML_DIR, 'werke.xml')), 'werk'),
+    }
+
+    all_errors = []
+
+    beitraege_dir = os.path.join(XML_DIR, 'beitraege')
+    for filename in os.listdir(beitraege_dir):
+        if filename.endswith('-beitraege.xml'):
+            beitrag_root = parse_xml_file(os.path.join(beitraege_dir, filename))
+            if beitrag_root is not None:
+                errors = check_references(beitrag_root, reference_data, filename)
+                all_errors.extend(errors)
+
+    all_errors.sort(key=lambda x: (x[0], x[1]))
+
+    with open('linter_results.txt', 'w') as f:
+        for filename, line_number, error_message in all_errors:
+            f.write(f"{filename}:{line_number}:{error_message}\n")
+
+    if all_errors:
+        for filename, line_number, error_message in all_errors:
+            print(f"{filename}, Line {line_number}: {error_message}")
+        exit(1)  # Exit with error code if there are any errors
+    else:
+        print("No errors found.")
+
+if __name__ == "__main__":
+    main()

Scripts/process_linter_output.py

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+import os
+
+def main():
+    if not os.path.exists('linter_results.txt'):
+        print("No linter results found.")
+        return
+
+    with open('linter_results.txt', 'r') as f:
+        for line in f:
+            parts = line.strip().split(':', 2)
+            if len(parts) == 3:
+                filename, line_number, error_message = parts
+                print(f"::error file={filename},line={line_number}::{error_message}")
+
+if __name__ == "__main__":
+    main()