diff options
Diffstat (limited to 'wc.c')
| -rw-r--r-- | wc.c | 156 |
1 files changed, 0 insertions, 156 deletions
@@ -1,156 +0,0 @@ -/* vi: set sw=4 ts=4: */ -/* - * Mini wc implementation for busybox - * - * Copyright (C) 2000 Edward Betts <edward@debian.org> - * - * 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 2 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, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - */ - -#include <stdio.h> -#include <getopt.h> -#include <string.h> -#include <stdlib.h> -#include "busybox.h" - -static int total_lines, total_words, total_chars, max_length; -static int print_lines, print_words, print_chars, print_length; - -static void print_counts(int lines, int words, int chars, int length, - const char *name) -{ - char const *space = ""; - - if (print_lines) { - printf("%7d", lines); - space = " "; - } - if (print_words) { - printf("%s%7d", space, words); - space = " "; - } - if (print_chars) { - printf("%s%7d", space, chars); - space = " "; - } - if (print_length) - printf("%s%7d", space, length); - if (*name) - printf(" %s", name); - putchar('\n'); -} - -static void wc_file(FILE * file, const char *name) -{ - int lines, words, chars, length; - int in_word = 0, linepos = 0; - int c; - - lines = words = chars = length = 0; - while ((c = getc(file)) != EOF) { - chars++; - switch (c) { - case '\n': - lines++; - case '\r': - case '\f': - if (linepos > length) - length = linepos; - linepos = 0; - goto word_separator; - case '\t': - linepos += 8 - (linepos % 8); - goto word_separator; - case ' ': - linepos++; - case '\v': - word_separator: - if (in_word) { - in_word = 0; - words++; - } - break; - default: - linepos++; - in_word = 1; - break; - } - } - if (linepos > length) - length = linepos; - if (in_word) - words++; - print_counts(lines, words, chars, length, name); - total_lines += lines; - total_words += words; - total_chars += chars; - if (length > max_length) - max_length = length; - fclose(file); - fflush(stdout); -} - -int wc_main(int argc, char **argv) -{ - FILE *file; - unsigned int num_files_counted = 0; - int opt, status = EXIT_SUCCESS; - - total_lines = total_words = total_chars = max_length = 0; - print_lines = print_words = print_chars = print_length = 0; - - while ((opt = getopt(argc, argv, "clLw")) > 0) { - switch (opt) { - case 'c': - print_chars = 1; - break; - case 'l': - print_lines = 1; - break; - case 'L': - print_length = 1; - break; - case 'w': - print_words = 1; - break; - default: - show_usage(); - } - } - - if (!print_lines && !print_words && !print_chars && !print_length) - print_lines = print_words = print_chars = 1; - - if (argv[optind] == NULL || strcmp(argv[optind], "-") == 0) { - wc_file(stdin, ""); - return EXIT_SUCCESS; - } else { - while (optind < argc) { - if ((file = wfopen(argv[optind], "r")) != NULL) - wc_file(file, argv[optind]); - else - status = EXIT_FAILURE; - num_files_counted++; - optind++; - } - } - - if (num_files_counted > 1) - print_counts(total_lines, total_words, total_chars, - max_length, "total"); - - return status; -} |