From 549fffff150a70a62e7185e045dc1e5e454ffa5c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jonas=20H=C3=B6rsch?= <coroa@posteo.de>
Date: Mon, 20 May 2024 08:25:58 +0200
Subject: [PATCH] fix(utils): Fix shell_pattern_to_regex to work with brackets
 (#56)

* fix(utils): Fix shell_pattern_to_regex to work with brackets

* Update CHANGELOG
---
 CHANGELOG.rst                |  1 +
 src/pandas_indexing/utils.py | 14 ++------------
 2 files changed, 3 insertions(+), 12 deletions(-)

diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 117eb85..73776e4 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -3,6 +3,7 @@
 Changelog
 =========
 
+* Fix :func:`~selectors.ismatch` to not interpret brackets as regex symbols
 * Fix :func:`~selectors.isin` to always return a series (instead of a numpy array)
 
 v0.5.0 (2024-04-09)
diff --git a/src/pandas_indexing/utils.py b/src/pandas_indexing/utils.py
index 6b1fdd7..7bdbcd8 100644
--- a/src/pandas_indexing/utils.py
+++ b/src/pandas_indexing/utils.py
@@ -3,6 +3,7 @@
 Simple utility functions not of greater interest
 """
 
+import re
 from typing import Union
 
 from pandas import DataFrame, Index, Series
@@ -15,18 +16,7 @@ def shell_pattern_to_regex(s):
     """
     Escape characters with specific regexp use.
     """
-    return (
-        str(s)
-        .replace("|", r"\|")
-        .replace(".", r"\.")  # `.` has to be replaced before `*`
-        .replace("**", "__starstar__")  # temporarily __starstar__
-        .replace("*", r"[^|]*")
-        .replace("__starstar__", r".*")
-        .replace("+", r"\+")
-        .replace("(", r"\(")
-        .replace(")", r"\)")
-        .replace("$", r"\$")
-    )
+    return re.escape(s).replace(r"\*\*", ".*").replace(r"\*", r"[^|]*")
 
 
 def print_list(x, n):