From 15bd7946cc838a3151c357e4b0bc1ab85eecda62 Mon Sep 17 00:00:00 2001
From: Thomas Ulmer <thomasmulmer02@gmail.com>
Date: Mon, 23 Feb 2026 16:54:28 -0800
Subject: add musl and vi

---
 libuxre/regerror.c | 95 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 95 insertions(+)
 create mode 100644 libuxre/regerror.c

(limited to 'libuxre/regerror.c')

diff --git a/libuxre/regerror.c b/libuxre/regerror.c
new file mode 100644
index 0000000..397e3e5
--- /dev/null
+++ b/libuxre/regerror.c
@@ -0,0 +1,95 @@
+/*
+ * Changes by Gunnar Ritter, Freiburg i. Br., Germany, November 2002.
+ *
+ * Sccsid @(#)regerror.c	1.4 (gritter) 3/29/03
+ */
+/*  UNIX(R) Regular Expresssion Library
+ *
+ *  Note: Code is released under the GNU LGPL
+ *
+ *  Copyright (C) 2001 Caldera International, Inc.
+ *
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Lesser General Public
+ *  License as published by the Free Software Foundation; either
+ *  version 2 of the License, or (at your option) any later version.
+ *
+ *  This library is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public
+ *  License along with this library; if not, write to:
+ *        Free Software Foundation, Inc.
+ *        59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+/*	#include "synonyms.h"	*/
+#include <string.h>
+#include "re.h"
+/*	include "_locale.h"	*/
+
+/*	#pragma weak regerror = _regerror	*/
+
+size_t
+regerror(int err, const regex_t *ep, char *str, size_t max)
+{
+	const struct
+	{
+		int		index;
+		const char	*str;
+	} unk = 
+	{
+			88,  "unknown regular expression error"
+	}, msgs[] =
+	{
+	/*ENOSYS*/	{ 89,  "feature not implemented" },
+	/*0*/		{ 0,   "" },
+	/*NOMATCH*/	{ 90,  "regular expression failed to match" },
+	/*BADPAT*/	{ 91,  "invalid regular expression" },
+	/*ECOLLATE*/	{ 92,  "invalid collating element construct" },
+	/*ECTYPE*/	{ 93,  "invalid character class construct" },
+	/*EEQUIV*/	{ 94,  "invalid equivalence class construct" },
+	/*EBKTCHAR*/	{ 95,  "invalid character in '[ ]' construct" },
+	/*EESCAPE*/	{ 96,  "trailing \\ in pattern" },
+	/*ESUBREG*/	{ 97,  "'\\digit' out of range" },
+	/*EBRACK*/	{ 98,  "'[ ]' imbalance" },
+	/*EMPTYSUBBKT*/	{ 99,  "empty nested '[ ]' construct" },
+	/*EMPTYPAREN*/	{ 100, "empty '\\( \\)' or '( )'" },
+	/*NOPAT*/	{ 101, "empty pattern" },
+	/*EPAREN*/	{ 102, "'\\( \\)' or '( )' imbalance" },
+	/*EBRACE*/	{ 103, "'\\{ \\} or '{ }' imbalance" },
+	/*BADBR*/	{ 104, "invalid '\\{ \\}' or '{ }'" },
+	/*ERANGE*/	{ 105, "invalid endpoint in range" },
+	/*ESPACE*/	{ 106, "out of regular expression memory" },
+	/*BADRPT*/	{ 107, "invalid *, +, ?, \\{\\} or {} operator" },
+	/*BADESC*/	{ 108, "invalid escape sequence (e.g. \\0)" },
+	/*ILLSEQ*/	{ 109, "illegal byte sequence"}
+	};
+	const char *p;
+	size_t len;
+	int i;
+
+	if (err < REG_ENOSYS || REG_ILLSEQ < err)
+	{
+		i = unk.index;
+		p = unk.str;
+	}
+	else
+	{
+		i = msgs[err - REG_ENOSYS].index;
+		p = msgs[err - REG_ENOSYS].str;
+	}
+/*	p = __gtxt(_str_uxlibc, i, p);	*/
+	len = strlen(p) + 1;
+	if (max != 0)
+	{
+		if (max > len)
+			max = len;
+		else if (max < len)
+			str[--max] = '\0';
+		memcpy(str, p, max);
+	}
+	return len;
+}
-- 
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