From 62e2597c248b3f3ff51d9edbd75ce495ccd991f4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ole=20J=C3=B8rgen=20Br=C3=B8nner?= <olejorgenb@yahoo.no>
Date: Thu, 2 May 2024 17:43:50 +0200
Subject: [PATCH] Pre-compile regexps (#338)

---
 tatsu/infos.py | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/tatsu/infos.py b/tatsu/infos.py
index efcf6ca..3044a43 100644
--- a/tatsu/infos.py
+++ b/tatsu/infos.py
@@ -1,5 +1,6 @@
 from __future__ import annotations
 
+import re
 import copy
 import dataclasses
 from collections.abc import Callable, Mapping
@@ -29,8 +30,8 @@ class ParserConfig:
     start_rule: str | None = None  # FIXME
     rule_name: str | None = None  # Backward compatibility
 
-    comments_re: str | None = None
-    eol_comments_re: str | None = None
+    comments_re: re.Pattern | None = None
+    eol_comments_re: re.Pattern | None = None
 
     tokenizercls: type[Tokenizer] | None = None  # FIXME
     semantics: type | None = None
@@ -63,9 +64,9 @@ def __post_init__(self):  # pylint: disable=W0235
         if self.ignorecase:
             self.keywords = [k.upper() for k in self.keywords]
         if self.comments:
-            self.comments_re = self.comments
+            self.comments_re = re.compile(self.comments)
         if self.eol_comments:
-            self.eol_comments_re = self.eol_comments
+            self.eol_comments_re = re.compile(self.eol_comments)
 
     @classmethod
     def new(