more cleaning

src/cut.c

@@ -1,67 +0,0 @@
-#include <stdbool.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <sysexits.h>
-#include <unistd.h>
-#include "noargvzero.h"
-
-extern char *optarg; /* getopt(3); unistd.h */
-extern int optind, opterr, optopt; /* getopt(3); unistd.h */
-
-void
-occurrences(FILE *f, char *s){
-
-}
-
-void
-usage(char *name){
-	fprintf(stderr,
-		"Usage: %s (-b [list] (-n))"
-			"\t|(-c [list])"
-			"\t|(-f [list] (-d [delim]) (-s))"
-			"\t[file...]\n", name);
-	exit(EX_USAGE);
-}
-
-int
-main(int argc, char *argv[]){
-	int c;
-	char *delimiter;
-	char *list;
-	char mode;
-
-	NOARGVZERO(argv[0]);
-
-	/* perhaps mode could be specified after submodal stuff. this would
-	 * move checks to after argument parsing though which could take more
-	 * time. */
-	mode = 0;
-	submode = 0;
-	while((c = getopt(argc, argv, "b:c:d:f:ns")) != -1)
-		switch(c){
-			case 'b': case 'c': case 'f':
-				if(mode != 0)
-					usage(argv[0]);
-				mode = c;
-				list = optarg;
-				break;
-
-			case 'd':
-				if(mode != 'f')
-					usage(argv[0]);
-				delimiter = optarg;
-				break;
-
-			case 'n': case 's':
-				if((c == 's' && mode != 'f')
-						|| (c == 'b' && mode != 'b'))
-					usage(argv[0]);
-				submode = c;
-				break;
-
-			default:
-				usage(argv[0]);
-		}
-
-	return EX_OK;
-}

src/false.c

@@ -1 +0,0 @@
-int main() { return 1; }

src/lowercase.c

@@ -1,73 +0,0 @@
-#include <ascii.h> /* ASCII_MAX_VALUE */
-#include <stdbool.h> /* bool */
-#include <stdio.h> /* fprintf(3), getc(3), putc(3), stderr, stdin, stdout */
-#include <stdlib.h> /* exit(3) */
-#include <sysexits.h> /* EX_OK, EX_USAGE, EX_SOFTWARE */
-#include <unistd.h> /* getopt(3) */
-
-/* Enable Unicode support using official Unicode library. */
-#ifdef    USE_ICU
-#	include <unicode/uchar.h> /* UCHAR_MAX_VALUE, u_tolower(3) */
-#	include <unicode/umachine.h> /* UChar32 */
-#	include <unicode/ustdio.h> /* u_fgetc(3) */
-#endif /* USE_ICU */
-
-#define PROGRAM_NAME "lowercase"
-
-void
-usage(char *name){
-	fprintf(stderr, "Usage: %s (-f)\n", name);
-	exit(EX_USAGE);
-}
-
-int main(int argc, char *argv[]){
-#ifdef USE_ICU
-	UChar32
-#else
-	int
-#endif
-		c; /* iterating over character stream */
-	int d; /* iterating over getopt */
-	bool force;
-	force = false;
-
-	while((d = getopt(argc, argv, "f")) != -1)
-		switch(d){
-		case 'f':
-			force = true;
-			break;
-		case '?':
-			usage(argv[0] != NULL ? argv[0] : PROGRAM_NAME);
-			break;
-		}
-	if(argv[optind] != NULL) /* don't accept arguments */
-		usage(argv[0] != NULL ? argv[0] : PROGRAM_NAME);
-
-#ifdef USE_ICU
-	while((c = u_fgetc(stdin)) != U_EOF){
-#else
-	while((c = getc(stdin)) != EOF){
-#endif
-		if(c <= ASCII_MAX_VALUE)
-			c += ('a' - 'A') * (c >= 'A' && c <= 'Z');
-#ifdef USE_ICU
-		else if(c <= UCHAR_MAX_VALUE)
-			c = u_tolower(c);
-#endif
-		else if(!force){ /* past supported */
-			fprintf(
-				stderr,
-				"%s: Sorry, extra-ASCII characters are not yet"
-				" supported!\n",
-				argv[0] != NULL ? argv[0] : PROGRAM_NAME
-			);
-			return EX_SOFTWARE;
-		}
-#ifdef USE_ICU
-		u_fputc(c, stdout);
-#else
-		putc(c, stdout);
-#endif
-	}
-	return EX_OK;
-}

src/retval.c

@@ -1,25 +0,0 @@
-#include <ctype.h> /* isdigit(3) */
-#include <sysexits.h> /* EX_USAGE */
-#include <unistd.h> /* write(2) */
-#include "libio.h" /* fdprint(3), parse_uint(3) */
-
-static char *program_name = "retval";
-
-int main(int argc, char *argv[]){
-	unsigned int s;
-
-	if(argc < 2){
-usage:		write(2, "Usage: ", 7);
-		fdprint(2, argv[0] == NULL ? program_name : argv[0]);
-		write(2, " [status]\n", 10);
-		return EX_USAGE;
-	}
-
-	for(s = 0; argv[1][s] != '\0'; ++s)
-		if(!isdigit(argv[1][s]))
-			goto usage;
-
-	s = parse_uint(argv[1]);
-
-	return s;
-}

src/simexec.c

@@ -1,20 +0,0 @@
-#include <stddef.h> /* NULL */
-#include <sysexits.h> /* EX_USAGE */
-#include <unistd.h> /* execv(3), write(2) */
-#include "libio.h" /* fdprint(3) */
-
-static char *program_name = "simexec";
-
-int main(int argc, char *argv[]){
-
-	if(argc < 2){
-		write(2, "Usage: ", 7);
-		if(argv[0] == NULL)
-			argv[0] = program_name;
-		fdprint(2, argv[0]);
-		write(2, " [pathname] [argv...]\n", 22);
-		return EX_USAGE;
-	}
-
-	return execv(argv[1], argv+2);
-}

src/sleep.c

@@ -1,25 +0,0 @@
-#include <ctype.h> /* isdigit(3) */
-#include <stdlib.h> /* atoi(3) */
-#include <sysexits.h> /* EX_USAGE */
-#include <unistd.h> /* sleep(3) */
-#include "libio.h"
-
-static char *program_name = "sleep";
-
-int main(int argc, char **argv){
-	int s;
-	if(argc != 2){
-usage:		write(2, "Usage: ", 7);
-		fdprint(2, argv[0] == NULL ? program_name : argv[0]);
-		write(2, " [seconds]\n", 11);
-		return EX_USAGE;
-	}
-	s = parse_uint(argv[1]);
-	while(isdigit(*argv[1]))
-		++argv[1];
-	if(*argv[1] != '\0')
-		goto usage;
-	while(s > 0)
-		s = sleep(s);
-	return s;
-}

src/streq.c

@@ -1,27 +0,0 @@
-#include <sysexits.h>
-#include <unistd.h>
-#include "libio.h"
-
-static char *program_name = "streq";
-
-int main(int argc, char *argv[]){
-	int i;
-	int j;
-
-	if(argc < 3){
-		write(2, "Usage: ", 7);
-		if(argv[0] == NULL)
-			argv[0] = program_name;
-		fdprint(2, argv[0]);
-		write(2, " [strings...]\n", 14);
-		return EX_USAGE;
-	}
-
-	/* i is the arg index, j is the char index */
-	for(j = 0; argv[1][j] != '\0'; ++j)
-		for(i = 2; i < argc; ++i)
-			if(argv[i-1][j] != argv[i][j])
-				return 1;
-
-	return 0;
-}

src/true.c

@@ -1 +0,0 @@
-int main(){ return 0; }