Update nvi-1.79 to 2.1.1-4334a8297f

This is the gsoc-2011 project to clean up and backport multibyte support
from other nvi forks in a form we can use.

USE_WIDECHAR is on unless building for the rescue crunchgen. This should
allow editing in the native locale encoding.

USE_ICONV depends on make.conf having 'WITH_ICONV=YES' for now.  This
adds the ability to do things like edit a KOI8-R file while having $LANG
set to (say) en_US.UTF-8.  iconv is used to transcode the characters for
display.

Other points:
* It uses gencat and catopen/etc instead of homegrown msg catalog stuff.
* A lot of stuff has been trimmed out, eg: the perl and tcl bindings which
  we could never use in base anyway.
* It uses ncursesw when in widechar mode.  This could be interesting.

GSoC info: http://www.google-melange.com/gsoc/proposal/review/google/gsoc2011/zy/1
Repo at: https://github.com/lichray/nvi2

Obtained from:  Zhihao Yuan <lichray@gmail.com>

1 files changed, 85 insertions, 0 deletions

diff --git a/contrib/nvi/regex/cclass.h b/contrib/nvi/regex/cclass.h
new file mode 100644
index 000000000000..f28bccdfafcc
--- /dev/null
+++ b/contrib/nvi/regex/cclass.h
@@ -0,0 +1,85 @@
+/*	$NetBSD: cclass.h,v 1.2 2008/12/05 22:51:42 christos Exp $ */
+
+/*-
+ * Copyright (c) 1992, 1993, 1994 Henry Spencer.
+ * Copyright (c) 1992, 1993, 1994
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Henry Spencer of the University of Toronto.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)cclass.h	8.2 (Berkeley) 3/16/94
+ */
+
+RCHAR_T ALNUM[] = {'a','l','n','u','m',0};
+RCHAR_T ALPHA[] = {'a','l','p','h','a',0};
+RCHAR_T BLANK[] = {'b','l','a','n','k',0};
+RCHAR_T CNTRL[] = {'c','n','t','r','l',0};
+RCHAR_T DIGIT[] = {'d','i','g','i','t',0};
+RCHAR_T GRAPH[] = {'g','r','a','p','h',0};
+RCHAR_T LOWER[] = {'l','o','w','e','r',0};
+RCHAR_T PRINT[] = {'p','r','i','n','t',0};
+RCHAR_T PUNCT[] = {'p','u','n','c','t',0};
+RCHAR_T SPACE[] = {'s','p','a','c','e',0};
+RCHAR_T UPPER[] = {'u','p','p','e','r',0};
+RCHAR_T XDIGIT[] = {'x','d','i','g','i','t',0};
+
+/* character-class table */
+static struct cclass {
+	RCHAR_T *name;
+	const char *chars;
+	const char *multis;
+} cclasses[] = {
+	{ ALNUM,	"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz\
+0123456789",				"" },
+	{ ALPHA,	"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz",
+					"" },
+	{ BLANK,	" \t",		"" },
+	{ CNTRL,	"\007\b\t\n\v\f\r\1\2\3\4\5\6\16\17\20\21\22\23\24\
+\25\26\27\30\31\32\33\34\35\36\37\177",	"" },
+	{ DIGIT,	"0123456789",	"" },
+	{ GRAPH,	"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz\
+0123456789!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~",
+					"" },
+	{ LOWER,	"abcdefghijklmnopqrstuvwxyz",
+					"" },
+	{ PRINT,	"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz\
+0123456789!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~ ",
+					"" },
+	{ PUNCT,	"!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~",
+					"" },
+	{ SPACE,	"\t\n\v\f\r ",	"" },
+	{ UPPER,	"ABCDEFGHIJKLMNOPQRSTUVWXYZ",
+					"" },
+	{ XDIGIT,	"0123456789ABCDEFabcdef",
+					"" },
+	{ NULL,		0,		"" },
+};