Merge from NetBSD cut.1 rev 1.6 and cut.c rev 1.9, respectively. This

makes us conform to IEEE Std1003.2-1992 (``POSIX.2'').

Obtained from:	NetBSD (but with slight modifications).

usr.bin/cut/cut.1

@@ -42,13 +42,17 @@
 .Nd select portions of each line of a file
 .Sh SYNOPSIS
 .Nm cut
+.Fl b Ar list
+.Op Fl n
+.Op Ar
+.Nm cut
 .Fl c Ar list
-.Ar
+.Op Ar
 .Nm cut
 .Fl f Ar list
 .Op Fl d Ar delim
 .Op Fl s
-.Ar
+.Op Ar
 .Sh DESCRIPTION
 The
 .Nm cut
@@ -81,6 +85,10 @@ input line.
 .Pp
 The options are as follows:
 .Bl -tag -width Fl
+.It Fl b Ar list
+The 
+.Ar list
+specifies byte positions.
 .It Fl c Ar list
 The
 .Ar list
@@ -94,6 +102,8 @@ The
 .Ar list
 specifies fields, delimited in the input by a single tab character.
 Output fields are separated by a single tab character.
+.It Fl n
+Do not split multi-byte characters.
 .It Fl s
 Suppresses lines with no field delimiter characters.
 Unless specified, lines with no delimiters are passed through unmodified.
@@ -106,5 +116,5 @@ exits 0 on success, 1 if an error occurred.
 .Sh STANDARDS
 The
 .Nm cut
-utility is expected to conform to
+utility conforms to
-.St -p1003.2 .
+.St -p1003.2-92 .

usr.bin/cut/cut.c

@@ -48,6 +48,7 @@ static const char sccsid[] = "@(#)cut.c	8.3 (Berkeley) 5/4/95";
 #include <err.h>
 #include <errno.h>
 #include <limits.h>
+#include <locale.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -73,10 +74,15 @@ main(argc, argv)
 	void (*fcn) __P((FILE *, char *)) = NULL;
 	int ch;
 
+	setlocale (LC_ALL, "");
+
 	dchar = '\t';			/* default delimiter is \t */
 
-	while ((ch = getopt(argc, argv, "c:d:f:s")) != -1)
+	/* Since we don't support multi-byte characters, the -c and -b 
+	   options are equivalent, and the -n option is meaningless. */
+	while ((ch = getopt(argc, argv, "b:c:d:f:sn")) != EOF)
 		switch(ch) {
+		case 'b':
 		case 'c':
 			fcn = c_cut;
 			get_list(optarg);
@@ -94,6 +100,8 @@ main(argc, argv)
 		case 's':
 			sflag = 1;
 			break;
+		case 'n':
+			break;
 		case '?':
 		default:
 			usage();
@@ -263,8 +271,9 @@ f_cut(fp, fname)
 static void
 usage()
 {
-	(void)fprintf(stderr, "%s\n%s\n",
+	(void)fprintf(stderr, "%s\n%s\n%s\n",
-		"usage: cut -c list [file1 ...]",
+		"usage: cut -b list [-n] [file ...]",
+		"       cut -c list [file ...]",
 		"       cut -f list [-s] [-d delim] [file ...]");
 	exit(1);
 }