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#include "include.h"
#include <ctype.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
int cmode, wmode, lmode;
void output(const char *str, size_t lines, size_t words, size_t chars) {
if (lmode) {
printf("%d", lines);
}
if (wmode) {
if (lmode) {
putchar(' ');
}
printf("%d", words);
}
if (cmode) {
if (lmode) {
putchar(' ');
}
printf("%d", chars);
}
if (str) {
printf(" %s", str);
}
putchar('\n');
}
void wc(int argc, char **argv) {
int fd = fd_stdin;
size_t total_chars, total_words, total_lines;
total_chars = total_words = total_lines = 0;
if (NULL == *argv) {
goto read_stdin;
}
for (; *argv; argv++) {
int new_word = 1;
size_t chars = 0, words = chars, lines = chars;
fd = open(*argv, O_RDONLY, 0);
read_stdin:
for (char c; read(fd, &c, 1);) {
if (cmode) {
chars++;
}
if (wmode) {
if (isspace(c)) {
new_word = 1;
} else if (new_word) {
words++;
new_word = 0;
}
}
if (lmode) {
if ('\n' == c) {
lines++;
}
}
}
close(fd);
if (lmode) {
total_lines += lines;
}
if (wmode) {
total_words += words;
}
if (cmode) {
total_chars += chars;
}
output(*argv, lines, words, chars);
if (NULL == *argv) {
return; // We read from stdin
}
}
if (argc > 1) {
output("total", total_lines, total_words, total_chars);
}
}
int wc_main(int argc, char **argv) {
cmode = wmode = lmode = 0;
for (argc--; *++argv && '-' == **argv; argc--) {
switch (*(*argv + 1)) {
case 'l':
lmode = 1;
break;
case 'w':
wmode = 1;
break;
case 'c':
cmode = 1;
break;
}
}
if (!(lmode || cmode || wmode)) {
cmode = wmode = lmode = 1;
}
wc(argc, argv);
return 0;
}
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