From: Nick Ing-Simmons <nik@tiuk.ti.com>
Date: Fri, 8 Aug 2003 20:36:56 +0000 (+0100)
Subject: UNICODE regexp bug
X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=commitdiff_plain;h=c1e0e3d213c8ff11e0eeef6aecef3894e8ec6e96;p=p5sagit%2Fp5-mst-13.2.git

UNICODE regexp bug
Message-Id: <20030808193656.5109.1@llama.ni-s.u-net.com>

p4raw-id: //depot/perl@20566
---

diff --git a/regexec.c b/regexec.c
index 1127933..d4cf4ed 100644
--- a/regexec.c
+++ b/regexec.c
@@ -1034,7 +1034,9 @@ S_find_byclass(pTHX_ regexp * prog, regnode *c, char *s, char *strend, char *sta
 	    c1 = *(U8*)m;
 	    c2 = PL_fold_locale[c1];
 	  do_exactf:
-	    e = HOP3c(strend, -(I32)ln, s);
+	    /* The last byte to try is ln-1 characters before strend
+	     * since the strend points one byte past the string. */
+	    e = HOP3c(strend, (I32)1 - (I32)ln, s);
 
 	    if (norun && e < s)
 		e = s;			/* Due to minlen logic of intuit() */
diff --git a/t/op/pat.t b/t/op/pat.t
index d606a6a..b106c75 100755
--- a/t/op/pat.t
+++ b/t/op/pat.t
@@ -6,7 +6,7 @@
 
 $| = 1;
 
-print "1..1008\n";
+print "1..1009\n";
 
 BEGIN {
     chdir 't' if -d 't';
@@ -3196,4 +3196,7 @@ ok("abcde" eq "$`", '# TODO #19049 - global match not setting $`');
 
 ok("123\x{100}" =~ /^.*1.*23\x{100}$/, 'uft8 + multiple floating substr');
 
+ok("  \x{101}" =~ qr/\x{100}/i,
+   "<20030808193656.5109.1@llama.ni-s.u-net.com>");
+
 # last test 1008