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#include <stdio.h>
#include <termios.h>
#include <stdlib.h>
#include "7ed.h"
#include <time.h>
void CONFIRM() {
struct termios old,new;
tcgetattr(fileno(stdin),&old); // gets something?
tcgetattr(fileno(stdin),&new); // gets something else?
cfmakeraw(&new); // makes new terminal settings
tcsetattr(fileno(stdin),TCSANOW,&new); // sets those settings immediately (TCSANOW) to &new
fputs("Press any key to continue...",stdout);
fflush(NULL);
fgetc(stdin);
tcsetattr(fileno(stdin),TCSANOW,&old); // goes back to old settings
puts(""); // newline
}
int CHOICE() {
int choice;
do {
fputs("[Y / N] ? ", stdout);
choice = getchar();
if (choice == '\n') { continue; }
while ('\n' != getchar());
} while ( (choice != 'Y') && (choice != 'y') && (choice != 'N') && (choice != 'n') );
if ( (choice == 'Y') || (choice == 'y') )
{
return 0;
}
if ((choice == 'N') || (choice == 'n') )
{
return 1;
}
return EXIT_FAILURE;
}
int COUNT_LINES_IN_FILE (char filename[], size_t *lines) {
// Does not follow posix because this function accounts for if the last line does not end with a newline.
size_t line_count = 0; // Counter starting at 0
FILE *file;
file = fopen(filename,"rb"); // Open file
if (file == NULL) { // Check if you can open file
fprintf(stderr, "Cannot open file.\n");
return 1;
}
fseek(file, -1, SEEK_END);
int last = fgetc(file);
if (last != '\n') { // Checks if the file ends with a newline or not. If not then it adds 1 to the count to account for the last line
line_count++;
}
fseek(file, 0, SEEK_SET);
char buffer[BUF_SZ_4]; // Creates buffer with size of BUF_SZ_4
while (1) {
size_t bytes_read = fread(buffer, 1, BUF_SZ_4, file); // puts chars from file in to buffer and returns the amount of bytes.
for (size_t i = 0 ; i < bytes_read; i++) {
if (buffer[i] == '\n') { // Searches through the buffer for newlines.
line_count++;
}
}
if (feof(file)) { // If end of file is encountered then break
break;
}
}
fclose(file);
*lines = line_count;
return 0;
}
int COUNT_LINES_IN_FILE_POSIX (char filename[], size_t *lines) {
// Same function as before but posix
size_t line_count = 0; // Counter starting at 0
FILE *file;
file = fopen(filename,"rb"); // Open file
if (file == NULL) { // Check if you can open file
fprintf(stderr, "Cannot open file.\n");
return 1;
}
char buffer[BUF_SZ_4]; // Creates buffer with size of BUF_SZ_4
while (1) {
size_t bytes_read = fread(buffer, 1, BUF_SZ_4, file); // puts chars from file in to buffer and returns the amount of bytes.
for (size_t i = 0 ; i < bytes_read; i++) {
if (buffer[i] == '\n') { // Searches through the buffer for newlines.
line_count++;
}
}
if (feof(file)) { // If end of file is encountered then break
break;
}
}
fclose(file);
*lines = line_count;
return 0;
}
void shuffle(char arr[], int n) {
for (int i = n -1 ; i > 0 ; i--) {
int j = rand() % (i + 1);
int temp = arr[i];
arr[i] = arr[j];
arr[j] = temp;
}
}
int print_7ed() {
printf("print_7ed()\n");
return 0;
}
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