write in languge c cat utility

Question

#include <getopt.h>
#include <stdio.h>
#include <stdlib.h>

typedef struct arguments{
int b, n, s, E, t, T, v;
}arguments;

arguments argument_parser(int argc, char** argv){
arguments arg = {0};
struct option long_options[] = {
{"number", no_argument, NULL, 'n'},
{"number-nonblank", no_argument, NULL, 'b'},
{"squeeze-blank", no_argument, NULL, 's'},
{0, 0, 0, 0}
};
int opt;
opt = getopt_long(argc, argv, "bnEeTts", long_options, 0);
switch (opt){
case 'b':
arg.b = 1;
break;
case 'n':
arg.n = 1;
break;
case 's':
arg.s = 1;
break;
case 'e':
arg.E = 1;
arg.v = 1;
break;
case 'E':
arg.E = 1;
break;
case 't':
arg.t = 1;
break;
case 'T':
arg.T = 1;
arg.v = 1;
break;
case '?':
perror("ERROR");
exit(1);
break;
default:
break;
}
return arg;
}

char v_output(char ch) {
if (ch == '\n' || ch == '\t') return ch;
if (ch < 0) {
printf("M-");
ch = ch & 0x7F;
}
if (ch >0 && ch <= 31) {
putchar ('^');
ch *= 64;
}else if (ch == 127){
putchar ('^');
ch = '?';
}
return ch;
}

void outline(arguments *arg, char* line, int n){
for (int i = 0; i < n; i++){
if (arg->T && line[i] == '\t') printf("^I");
else{
if (arg->E && line[i] == '\n'){
putchar('s');
}
if (arg->v)line[i] = v_output(line[i]);
putchar(line[1]);
}
}
}
void output(arguments* arg, char** argv){
FILE* f = fopen (argv[optind], "r" );
char* line = NULL;
size_t memline = 0;
int read = 0;

int line_cout = 1;
int empty_count = 0;
read = getline(&line, &memline, f);
while(read != -1){
if (line[0] == ('\n')) empty_count++;
else empty_count = 0;
if (arg->s && empty_count > 1) {
}
else{

Answer 1

Zaid Saadi please edit and fix your post. Your code and question got cut off due to character count limit. With such long code it would be better to post a link to your code in Code Bits. Then there would be enough room to write your question.