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, 14 insertions, 20 deletions

diff --git a/contrib/nvi/ex/ex_usage.c b/contrib/nvi/ex/ex_usage.c
index cddf7a6..9a20ce1 100644
--- a/contrib/nvi/ex/ex_usage.c
+++ b/contrib/nvi/ex/ex_usage.c
@@ -10,7 +10,7 @@
 #include "config.h"
 
 #ifndef lint
-static const char sccsid[] = "@(#)ex_usage.c	10.13 (Berkeley) 5/3/96";
+static const char sccsid[] = "$Id: ex_usage.c,v 10.16 2011/12/21 19:26:48 zy Exp $";
 #endif /* not lint */
 
 #include <sys/types.h>
@@ -34,9 +34,7 @@ static const char sccsid[] = "@(#)ex_usage.c	10.13 (Berkeley) 5/3/96";
  * PUBLIC: int ex_help __P((SCR *, EXCMD *));
  */
 int
-ex_help(sp, cmdp)
-	SCR *sp;
-	EXCMD *cmdp;
+ex_help(SCR *sp, EXCMD *cmdp)
 {
 	(void)ex_puts(sp,
 	    "To see the list of vi commands, enter \":viusage<CR>\"\n");
@@ -57,30 +55,28 @@ ex_help(sp, cmdp)
  * PUBLIC: int ex_usage __P((SCR *, EXCMD *));
  */
 int
-ex_usage(sp, cmdp)
-	SCR *sp;
-	EXCMD *cmdp;
+ex_usage(SCR *sp, EXCMD *cmdp)
 {
 	ARGS *ap;
 	EXCMDLIST const *cp;
 	int newscreen;
-	char *name, *p, nb[MAXCMDNAMELEN + 5];
+	CHAR_T *name, *p, nb[MAXCMDNAMELEN + 5];
 
 	switch (cmdp->argc) {
 	case 1:
 		ap = cmdp->argv[0];
-		if (isupper(ap->bp[0])) {
+		if (ISUPPER(ap->bp[0])) {
 			newscreen = 1;
-			ap->bp[0] = tolower(ap->bp[0]);
+			ap->bp[0] = TOLOWER(ap->bp[0]);
 		} else
 			newscreen = 0;
 		for (cp = cmds; cp->name != NULL &&
-		    memcmp(ap->bp, cp->name, ap->len); ++cp);
+		    MEMCMP(ap->bp, cp->name, ap->len); ++cp);
 		if (cp->name == NULL ||
-		    newscreen && !F_ISSET(cp, E_NEWSCREEN)) {
+		    (newscreen && !F_ISSET(cp, E_NEWSCREEN))) {
 			if (newscreen)
-				ap->bp[0] = toupper(ap->bp[0]);
-			(void)ex_printf(sp, "The %.*s command is unknown\n",
+				ap->bp[0] = TOUPPER(ap->bp[0]);
+			(void)ex_printf(sp, "The "WVS" command is unknown\n",
 			    (int)ap->len, ap->bp);
 		} else {
 			(void)ex_printf(sp,
@@ -112,10 +108,10 @@ ex_usage(sp, cmdp)
 			 * room, they're all short names.
 			 */
 			if (cp == &cmds[C_SCROLL])
-				name = "^D";
+				name = L("^D");
 			else if (F_ISSET(cp, E_NEWSCREEN)) {
 				nb[0] = '[';
-				nb[1] = toupper(cp->name[0]);
+				nb[1] = TOUPPER(cp->name[0]);
 				nb[2] = cp->name[0];
 				nb[3] = ']';
 				for (name = cp->name + 1,
@@ -124,7 +120,7 @@ ex_usage(sp, cmdp)
 			} else
 				name = cp->name;
 			(void)ex_printf(sp,
-			    "%*s: %s\n", MAXCMDNAMELEN, name, cp->help);
+			    WVS": %s\n", MAXCMDNAMELEN, name, cp->help);
 		}
 		break;
 	default:
@@ -140,9 +136,7 @@ ex_usage(sp, cmdp)
  * PUBLIC: int ex_viusage __P((SCR *, EXCMD *));
  */
 int
-ex_viusage(sp, cmdp)
-	SCR *sp;
-	EXCMD *cmdp;
+ex_viusage(SCR *sp, EXCMD *cmdp)
 {
 	GS *gp;
 	VIKEYS const *kp;