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#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <fcntl.h>
#include <ctype.h>
#include "include.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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