1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
|
#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(char filename[],long focus) {
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
int breakflag = 1;
int chbuf_i;
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 (line_count == (size_t)focus) { //When the line count is the same as the focus
//printf("%ld\n", line_count); // The program will save the position.
breakflag = 0;
chbuf_i = i;
break;
}
}
}
if (feof(file) || breakflag == 0) { // If end of file is encountered then break
break;
}
}
fclose(file);
return 0;
}
|
