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-rw-r--r--isascii.c141
1 files changed, 0 insertions, 141 deletions
diff --git a/isascii.c b/isascii.c
deleted file mode 100644
index 6294c01..0000000
--- a/isascii.c
+++ /dev/null
@@ -1,141 +0,0 @@
-/*
- * isascii - verify that input files consist of ASCII characters only
- * Copyright (C) 2007 Lars Wirzenius <liw@iki.fi>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-
-#define _BSD_SOURCE /* For isascii(3). */
-
-#include <assert.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <errno.h>
-#include <string.h>
-#include <getopt.h>
-
-#include <ctype.h>
-
-
-#define VERSION "1.0"
-
-
-/*
- * Code to indicate an invalid UTF8 character.
- */
-enum { INVALID_CHAR = 0xffffffff };
-
-
-/*
- * Determine if the contents of an open file form a valid ASCII byte stream.
- */
-static int is_ascii_byte_stream(FILE *file, char *filename, int quiet) {
- int c;
- unsigned long line, col;
-
- line = 1;
- col = 1;
-
- for (;;) {
- c = getc(file);
-
- if (c == EOF)
- break;
- else if (c == '\n') {
- ++line;
- col = 1;
- } else if (isascii(c)) {
- ++col;
- } else
- goto error;
- }
-
- return 1;
-
-error:
- if (!quiet) {
- printf("%s: line %lu, char %lu: invalid ASCII code: 0x%02x\n",
- filename, line, col, c);
- }
- return 0;
-}
-
-
-static void usage(const char *program_name) {
- printf("Usage: %s [-hq] [--help] [--quiet] [file ...]\n",
- program_name);
- printf("Check whether input files are valid ASCII.\n");
- printf("This is version %s.\n", VERSION);
-}
-
-
-int main(int argc, char **argv) {
- int i, ok;
- FILE *file;
-
- int quiet;
- struct option options[] = {
- { "help", no_argument, NULL, 'h' },
- { "quiet", no_argument, &quiet, 1 },
- };
- int opt;
-
- quiet = 0;
-
- while ((opt = getopt_long(argc, argv, "hq", options, NULL)) != -1) {
- switch (opt) {
- case 0:
- break;
-
- case 'h':
- usage(argv[0]);
- exit(0);
- break;
-
- case 'q':
- quiet = 1;
- break;
-
- case '?':
- exit(EXIT_FAILURE);
-
- default:
- abort();
- }
- }
-
- if (optind == argc)
- ok = is_ascii_byte_stream(stdin, "stdin", quiet);
- else {
- ok = 1;
- for (i = optind; i < argc; ++i) {
- file = fopen(argv[i], "r");
- if (file == NULL) {
- fprintf(stderr, "isascii: %s: error %d: %s\n",
- argv[i], errno,
- strerror(errno));
- ok = 0;
- } else {
- if (!is_ascii_byte_stream(file, argv[i], quiet))
- ok = 0;
- (void) fclose(file);
- }
- }
- }
-
- if (ok)
- exit(0);
- exit(EXIT_FAILURE);
-}