From df5304b63cb13fff0de92961ba80dea84c5c552c Mon Sep 17 00:00:00 2001
From: tjr <tjr@FreeBSD.org>
Date: Mon, 12 Jul 2004 06:07:26 +0000
Subject: Add a new error code, REG_ILLSEQ, to indicate that a regular
 expression contains an illegal multibyte character sequence.

---
 include/regex.h           | 1 +
 lib/libc/regex/regerror.c | 2 ++
 lib/libc/regex/regex.3    | 4 +++-
 3 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/include/regex.h b/include/regex.h
index b4e0132..3c3c87f 100644
--- a/include/regex.h
+++ b/include/regex.h
@@ -92,6 +92,7 @@ typedef struct {
 #define	REG_EMPTY	14
 #define	REG_ASSERT	15
 #define	REG_INVARG	16
+#define	REG_ILLSEQ	17
 #define	REG_ATOI	255	/* convert name to number (!) */
 #define	REG_ITOA	0400	/* convert number to name (!) */
 
diff --git a/lib/libc/regex/regerror.c b/lib/libc/regex/regerror.c
index 9888202..7942ef7 100644
--- a/lib/libc/regex/regerror.c
+++ b/lib/libc/regex/regerror.c
@@ -81,6 +81,7 @@ static char *regatoi(const regex_t *preg, char *localbuf);
  = #define	REG_EMPTY	14
  = #define	REG_ASSERT	15
  = #define	REG_INVARG	16
+ = #define	REG_ILLSEQ	17
  = #define	REG_ATOI	255	// convert name to number (!)
  = #define	REG_ITOA	0400	// convert number to name (!)
  */
@@ -105,6 +106,7 @@ static struct rerr {
 	{REG_EMPTY,	"REG_EMPTY",	"empty (sub)expression"},
 	{REG_ASSERT,	"REG_ASSERT",	"\"can't happen\" -- you found a bug"},
 	{REG_INVARG,	"REG_INVARG",	"invalid argument to regex routine"},
+	{REG_ILLSEQ,	"REG_ILLSEQ",	"illegal byte sequence"},
 	{0,		"",		"*** unknown regexp error code ***"}
 };
 
diff --git a/lib/libc/regex/regex.3 b/lib/libc/regex/regex.3
index d0a9837..11b29a4 100644
--- a/lib/libc/regex/regex.3
+++ b/lib/libc/regex/regex.3
@@ -36,7 +36,7 @@
 .\"	@(#)regex.3	8.4 (Berkeley) 3/20/94
 .\" $FreeBSD$
 .\"
-.Dd July 6, 2004
+.Dd July 12, 2004
 .Dt REGEX 3
 .Os
 .Sh NAME
@@ -652,6 +652,8 @@ empty (sub)expression
 can't happen - you found a bug
 .It Dv REG_INVARG
 invalid argument, e.g.\& negative-length string
+.It Dv REG_ILLSEQ
+illegal byte sequence (bad multibyte character)
 .El
 .Sh HISTORY
 Originally written by
-- 
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