npc incorporated into bonsai

npc/Makefile

@@ -1 +0,0 @@
-npc: npc.c

npc/npc.1

@@ -1,51 +0,0 @@
-.TH npc 1
-
-.SH NAME
-
-npc \(en show non-printing characters
-
-.SH SYNOPSIS
-
-npc
-.RB ( -eht )
-
-.SH DESCRIPTION
-
-Npc reads from standard input and writes to standard output, replacing non-
-printing characters with printable equivalents. Control characters print as a
-carat ('^') followed by the character '@' through '_' corresponding to the
-character replaced (e.g. control-X becomes "^X"). The delete character (0x7F)
-becomes "^?". Characters with the high bit set (>127) are printed as "M-"
-followed by the graphical representation for the same character without the
-high bit set.
-.PP
-The
-.B -e
-option prints a currency sign ('$') before each line ending.
-.PP
-The
-.B -t
-option prints tab characters as "^I" rather than a literal horizontal tab.
-
-.SH DIAGNOSTICS
-
-Npc prints a debug message and exits with the appropriate sysexits(3) error
-code in the event of an error, otherwise it exits successfully.
-
-.SH BUGS
-
-Npc operates in single-byte chunks regardless of intended encoding.
-
-.SH STANDARDS
-
-None.
-
-.SH COPYRIGHT
-
-Public domain.
-
-.SH SEE ALSO
-
-cat(1), cat-v(1)
-.PP
-"UNIX Style, or cat -v Considered Harmful" by Rob Pike

npc/npc.c

@@ -1,46 +0,0 @@
-#include <stdio.h> /* fprintf(3), fputs(3), getc(3), putc(3), stdin, stdout,
-                    * EOF */
-#include <unistd.h> /* getopt(3) */
-#if !defined EX_USAGE || !defined EX_OK
-#	include <sysexits.h>
-#endif
-
-int main(int argc, char *argv[]){
-	int c;
-	char showend;
-	char showtab;
-
-	showend = 0;
-	showtab = 0;
-
-	if(argc > 0)
-		while((c = getopt(argc, argv, "et")) != -1)
-			switch(c){
-			case 'e':	showend = 1; break;
-			case 't':	showtab = 1; break;
-			default:	goto usage;
-			}
-
-	if(argc > optind){
-usage:		fprintf(stderr, "Usage: %s (-eht)\n", argv[0]);
-		return EX_USAGE;
-	}
-
-	while((c = getc(stdin)) != EOF){
-		if((c & 0x80) != 0)
-			fputs("M-", stdout);
-		switch(c ^ 0x80 /* 0b 1000 0000 */){
-		case 0x7f:	fputs("^?", stdout);
-				break;
-		case '\n':	if(showend)
-					putc('$', stdout);
-		default:
-			if(c >= ' ' || c == '\n' || (!showtab && c == '\t'))
-				putc(c, stdout);
-			else
-				fprintf(stdout, "^%c", c + '@');
-		}
-	}
-
-	return EX_OK;
-}