128 lines
2.3 KiB
C
Executable file
128 lines
2.3 KiB
C
Executable file
#define _POSIX_C_SOURCE 200809L
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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int count_words(FILE * file);
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int count_newls(FILE * file);
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int count_bytes(FILE * file);
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int main(int argc, char ** argv) {
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int flags = 0, do_multibyte = 0;
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int c_byte = 0, c_nl = 0, c_word = 0;
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int t_byte = 0, t_nl = 0, t_word = 0;
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int i, error = 0; char c;
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FILE * in_file;
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while((c = getopt(argc, argv, "clwm")) != -1) {
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switch(c) {
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case 'c': flags |= 04; do_multibyte = 0; break;
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case 'l': flags |= 01; break;
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case 'w': flags |= 02; break;
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case 'm': flags |= 04; do_multibyte = 1; break;
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}
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}
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if((flags & 03) == 0) {
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flags |= 04;
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}
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for(i = optind; i < argc; i++) {
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in_file = fopen(argv[i], "r");
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if(in_file == NULL) {
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fprintf(stderr, "%s: couldn't open file %s\n", argv[0], argv[i]);
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error = 1;
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continue;
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}
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if(flags & 04) {
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c_byte = count_bytes(in_file);
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t_byte += c_byte;
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}
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if(flags & 01) {
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c_nl = count_newls(in_file);
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t_nl += c_nl;
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}
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if(flags & 02) {
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c_word = count_words(in_file);
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t_word += c_word;
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}
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if(flags & 01) {
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printf("%d ", c_nl);
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}
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if(flags & 02) {
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printf("%d ", c_word);
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}
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if(flags & 04) {
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printf("%d ", c_byte);
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}
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printf("%s\n", argv[i]);
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fclose(in_file);
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}
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if((argc - optind) > 1) {
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if(flags & 01) {
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printf("%d ", t_nl);
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}
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if(flags & 02) {
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printf("%d ", t_word);
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}
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if(flags & 04) {
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printf("%d ", t_byte);
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}
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printf("total\n");
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}
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return error;
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}
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int count_words(FILE * file) {
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int ret_val = 0, in_word = 0;
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char c;
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fseek(file, 0, SEEK_SET);
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for(c = fgetc(file); c != EOF; c = fgetc(file)) {
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if(c != ' ' && c != '\t' && c != '\n') {
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in_word = 1;
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}
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else if(in_word) {
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ret_val++;
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in_word = 0;
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}
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}
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if(in_word) ret_val++;
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return ret_val;
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}
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int count_newls(FILE * file) {
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char c; int ret_val = 0;
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fseek(file, 0, SEEK_SET);
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for(c = fgetc(file); c != EOF; c = fgetc(file)) {
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if(c == '\n') {
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ret_val++;
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}
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}
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return ret_val;
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}
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int count_bytes(FILE * file) {
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char c; int ret_val = 0;
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fseek(file, 0, SEEK_SET);
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for(c = fgetc(file); c != EOF; c = fgetc(file)) {
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ret_val++;
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}
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return ret_val;
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}
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