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Minor space saving improvments

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This commit is contained in:
Glenn L McGrath 2001-11-21 12:46:36 +00:00
parent 74afa9aed1
commit 9e6c9f7311
1 changed files with 33 additions and 29 deletions
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56
coreutils/wc.c
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@ -26,9 +26,6 @@
#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 char print_type = 0;
enum print_e {
print_lines = 1,
print_words = 2,
@ -36,8 +33,14 @@ enum print_e {
print_length = 8
};
static void print_counts(int lines, int words, int chars, int length,
const char *name)
static unsigned int total_lines = 0;
static unsigned int total_words = 0;
static unsigned int total_chars = 0;
static unsigned int max_length = 0;
static char print_type = 0;
static void print_counts(const unsigned int lines, const unsigned int words,
const unsigned int chars, const unsigned int length, const char *name)
{
if (print_type & print_lines) {
printf("%7d ", lines);
@ -59,11 +62,14 @@ static void print_counts(int lines, int words, int chars, int length,
static void wc_file(FILE * file, const char *name)
{
int lines, words, chars, length;
int in_word = 0, linepos = 0;
int c;
unsigned int lines = 0;
unsigned int words = 0;
unsigned int chars = 0;
unsigned int length = 0;
unsigned int linepos = 0;
char in_word = 0;
char c;
lines = words = chars = length = 0;
while ((c = getc(file)) != EOF) {
chars++;
switch (c) {
@ -93,27 +99,24 @@ static void wc_file(FILE * file, const char *name)
break;
}
}
if (linepos > length)
if (linepos > length) {
length = linepos;
if (in_word)
}
if (in_word) {
words++;
}
print_counts(lines, words, chars, length, name);
total_lines += lines;
total_words += words;
total_chars += chars;
if (length > max_length)
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;
int opt;
while ((opt = getopt(argc, argv, "clLw")) > 0) {
switch (opt) {
@ -140,8 +143,8 @@ int wc_main(int argc, char **argv)
if (argv[optind] == NULL || strcmp(argv[optind], "-") == 0) {
wc_file(stdin, "");
return EXIT_SUCCESS;
} else {
unsigned short num_files_counted = 0;
while (optind < argc) {
if (print_type == print_chars) {
struct stat statbuf;
@ -149,17 +152,18 @@ int wc_main(int argc, char **argv)
print_counts(0, 0, statbuf.st_size, 0, argv[optind]);
total_chars += statbuf.st_size;
} else {
FILE *file;
file = xfopen(argv[optind], "r");
wc_file(file, argv[optind]);
fclose(file);
}
num_files_counted++;
optind++;
num_files_counted++;
}
if (num_files_counted > 1) {
print_counts(total_lines, total_words, total_chars, max_length, "total");
}
}
if (num_files_counted > 1)
print_counts(total_lines, total_words, total_chars,
max_length, "total");
return status;
return(EXIT_SUCCESS);
}