From: Andrew M. Kuchling <amk@amk.ca>
Date: Thu, 1 Jun 2000 03:02:48 +0000 (+0000)
Subject: Fix bug reported by atkins@gweep.net; re.compile(r"[\100-\410]")
X-Git-Tag: v2.0b1~1616
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=94c3452ade3dbc2c09e772b0507084551fe49b4c;p=python

Fix bug reported by atkins@gweep.net; re.compile(r"[\100-\410]")
   dumps core.  Solution: fix check_escape() to match its comment and
   use only the low 8 bits of the octal number.
---

diff --git a/Modules/pypcre.c b/Modules/pypcre.c
index 468751d2c8..afff59c475 100644
--- a/Modules/pypcre.c
+++ b/Modules/pypcre.c
@@ -1064,7 +1064,7 @@ else
     c -= '0';
     while(i++ < 2 && (pcre_ctypes[ptr[1]] & ctype_digit) != 0 &&
       ptr[1] != '8' && ptr[1] != '9')
-        c = c * 8 + *(++ptr) - '0';
+        c = (c * 8 + *(++ptr) - '0') & 255;
     break;
 
     /* Special escapes not starting with a digit are straightforward */