Added the initial application with the main account list, the pagination, the query, the permission, the localization, the documentation, the test case, and a test demonstration site.

src/accounting/utils/query.py

@@ -0,0 +1,44 @@
+# The Mia! Accounting Flask Project.
+# Author: imacat@mail.imacat.idv.tw (imacat), 2023/1/25
+
+#  Copyright (c) 2023 imacat.
+#
+#  Licensed under the Apache License, Version 2.0 (the "License");
+#  you may not use this file except in compliance with the License.
+#  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+"""The query keyword parser.
+
+This module should not import any other module from the application.
+
+"""
+import re
+
+
+def parse_query_keywords(q: str | None) -> list[str]:
+    """Returns the query keywords by the query parameter.
+
+    :param q: The query parameter.
+    :return: The query keywords.
+    """
+    if q is None:
+        return []
+    q = q.strip()
+    if q == "":
+        return []
+    keywords: list[str] = []
+    while q is not None:
+        m: re.Match = re.match(r"(?:\"([^\"]+)\"|(\S+))(?:\s+(.+)|)$", q)
+        if m.group(1) is not None:
+            keywords.append(m.group(1))
+        else:
+            keywords.append(m.group(2))
+        q = m.group(3)
+    return keywords