Some formatting updates (ran the code through indent)
-Erik
This commit is contained in:
Erik Andersen
127
coreutils/wc.c
127
coreutils/wc.c
@ -1,3 +1,4 @@
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/* vi: set sw=4 ts=4: */
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/*
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* Mini wc implementation for busybox
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*
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@ -23,78 +24,82 @@
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#include <stdio.h>
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static const char wc_usage[] = "wc [OPTION]... [FILE]...\n\n"
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"Print line, word, and byte counts for each FILE, and a total line if\n"
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"more than one FILE is specified. With no FILE, read standard input.\n"
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"\t-c\tprint the byte counts\n"
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"\t-l\tprint the newline counts\n"
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"\t-L\tprint the length of the longest line\n"
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"\t-w\tprint the word counts\n";
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"Print line, word, and byte counts for each FILE, and a total line if\n"
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"more than one FILE is specified. With no FILE, read standard input.\n"
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"\t-c\tprint the byte counts\n"
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"\t-l\tprint the newline counts\n"
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"\t-L\tprint the length of the longest line\n"
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"\t-w\tprint the word counts\n";
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static int total_lines, total_words, total_chars, max_length;
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static int print_lines, print_words, print_chars, print_length;
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void print_counts (int lines, int words, int chars, int length,
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const char *name) {
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void print_counts(int lines, int words, int chars, int length,
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const char *name)
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{
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char const *space = "";
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if (print_lines) {
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printf ("%7d", lines);
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printf("%7d", lines);
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space = " ";
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}
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if (print_words) {
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printf ("%s%7d", space, words);
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printf("%s%7d", space, words);
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space = " ";
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}
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if (print_chars) {
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printf ("%s%7d", space, chars);
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printf("%s%7d", space, chars);
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space = " ";
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}
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if (print_length)
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printf ("%s%7d", space, length);
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printf("%s%7d", space, length);
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if (*name)
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printf (" %s", name);
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putchar ('\n');
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printf(" %s", name);
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putchar('\n');
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}
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static void wc_file(FILE *file, const char *name)
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static void wc_file(FILE * file, const char *name)
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{
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int lines, words, chars, length;
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int in_word = 0, linepos = 0;
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int c;
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lines = words = chars = length = 0;
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while ((c = getc(file)) != EOF) {
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chars++;
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switch (c) {
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case '\n':
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lines++;
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case '\r':
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case '\f':
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if (linepos > length)
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length = linepos;
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linepos = 0;
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goto word_separator;
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case '\t':
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linepos += 8 - (linepos % 8);
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goto word_separator;
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case ' ':
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linepos++;
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case '\v':
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word_separator:
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if (in_word) {
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in_word = 0;
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words++;
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}
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break;
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default:
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linepos++;
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in_word = 1;
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break;
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case '\n':
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lines++;
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case '\r':
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case '\f':
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if (linepos > length)
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length = linepos;
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linepos = 0;
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goto word_separator;
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case '\t':
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linepos += 8 - (linepos % 8);
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goto word_separator;
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case ' ':
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linepos++;
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case '\v':
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word_separator:
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if (in_word) {
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in_word = 0;
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words++;
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}
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break;
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default:
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linepos++;
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in_word = 1;
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break;
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}
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}
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if (linepos > length)
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length = linepos;
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if (in_word)
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words++;
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print_counts (lines, words, chars, length, name);
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print_counts(lines, words, chars, length, name);
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total_lines += lines;
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total_words += words;
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total_chars += chars;
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@ -104,28 +109,30 @@ static void wc_file(FILE *file, const char *name)
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fflush(stdout);
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}
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int wc_main(int argc, char **argv) {
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int wc_main(int argc, char **argv)
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{
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FILE *file;
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total_lines = total_words = total_chars = max_length = 0;
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print_lines = print_words = print_chars = print_length = 0;
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while (--argc && **(++argv) == '-') {
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while (*++(*argv))
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switch (**argv) {
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case 'c':
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print_chars = 1;
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break;
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case 'l':
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print_lines = 1;
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break;
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case 'L':
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print_length = 1;
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break;
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case 'w':
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print_words = 1;
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break;
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default:
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usage (wc_usage);
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case 'c':
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print_chars = 1;
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break;
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case 'l':
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print_lines = 1;
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break;
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case 'L':
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print_length = 1;
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break;
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case 'w':
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print_words = 1;
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break;
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default:
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usage(wc_usage);
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}
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}
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@ -135,16 +142,14 @@ int wc_main(int argc, char **argv) {
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if (argc == 0) {
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wc_file(stdin, "");
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exit(TRUE);
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}
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else if (argc == 1) {
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} else if (argc == 1) {
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file = fopen(*argv, "r");
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if (file == NULL) {
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perror(*argv);
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exit(FALSE);
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}
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wc_file(file, *argv);
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}
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else {
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} else {
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while (argc-- > 0 && *argv != '\0' && strlen(*argv)) {
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file = fopen(*argv, "r");
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if (file == NULL) {
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@ -154,8 +159,8 @@ int wc_main(int argc, char **argv) {
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wc_file(file, *argv);
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argv++;
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}
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print_counts (total_lines, total_words, total_chars,
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max_length, "total");
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print_counts(total_lines, total_words, total_chars,
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max_length, "total");
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}
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exit(TRUE);
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}
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