From 3d267af9d48d9dfe7c5feeb2470c62a5588b1295 Mon Sep 17 00:00:00 2001
From: kashima <kashima@eyetech.jp>
Date: Mon, 20 Jan 2025 15:09:27 +0900
Subject: [PATCH] Added SQL Server style named parameter.

---
 sqlparams/_styles.py | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/sqlparams/_styles.py b/sqlparams/_styles.py
index 495128c..d618fa4 100644
--- a/sqlparams/_styles.py
+++ b/sqlparams/_styles.py
@@ -133,6 +133,15 @@ class OrdinalStyle(Style):
 	param_quotes=True
 )
 
+# Define non-standard "named_sqlserver" parameter style.
+STYLES['named_sqlserver'] = NamedStyle(
+	name="named_sqlserver",
+	escape_char="@",
+	escape_regex="(?P<escape>{char}@)",
+	param_regex=r'(?<!@)@(?P<param>[A-Za-z_]\w*)',
+	out_format="@{param}"
+)
+
 # Define standard "numeric" parameter style.
 STYLES['numeric'] = NumericStyle(
 	name="numeric",