ccc/file.c

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C
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#include <string.h>
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#include <stdlib.h>
#include <libgen.h>
#include "util.h"
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/* files in a link list data structure */
typedef struct file {
char *path;
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char *stats;
char *type;
int color;
struct file *next;
} file;
file *files = NULL;
file *marked = NULL;
/*
* Get length of files linked list
*/
long files_len()
{
file *current = files;
int count = 0;
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while (current != NULL) {
count++;
current = current->next;
}
return count;
}
/*
* Get length of marked files
*/
long marked_len()
{
file *current = marked;
int count = 0;
while (current != NULL) {
count++;
current = current->next;
}
return count;
}
void clear_files()
{
file *tmp;
while (files != NULL) {
tmp = files;
files = files->next;
free(tmp);
}
}
void clear_marked()
{
file *tmp;
while (marked != NULL) {
tmp = marked;
files = marked->next;
free(tmp);
}
}
long add_file(char *filepath, char *stats, char *type, int color)
{
file *current = files;
file *new_file = memalloc(sizeof(file));
char *buf = strdup(filepath);
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char *buf2 = strdup(stats);
char *buf3 = strdup(type);
int buf4 = color;
if (buf == NULL || buf2 == NULL || buf3 == NULL)
perror("ccc");
new_file->path = buf;
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new_file->stats = buf2;
new_file->type = buf3;
new_file->color = buf4;
new_file->next = NULL;
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if (current == NULL) {
files = new_file;
return 0;
}
long index = 1;
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while (current->next != NULL) {
current = current->next;
index++;
}
current->next = new_file;
return index;
}
long add_marked(char *filepath, char *type)
{
file *current = marked;
file *new_file = memalloc(sizeof(file));
char *buf = strdup(filepath);
char *buf2 = strdup(type);
if (buf == NULL || buf2 == NULL) {
perror("ccc");
}
new_file->path = buf;
new_file->type = buf2;
new_file->next = NULL;
if (current == NULL) {
marked = new_file;
return 0;
}
long index = 1;
while (current->next != NULL) {
current = current->next;
index++;
}
current->next = new_file;
return index;
}
file *get_file(long index)
{
file *current = files;
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if (index == 0) {
return current;
}
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if (index > files_len()) {
return NULL;
}
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for (long i = 0; i < index; i++) {
current = current->next;
}
return current;
}
char *get_filepath(long index)
{
file *file = get_file(index);
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if (file != NULL) {
char *name = strdup(file->path);
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if (!name) {
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perror("ccc");
}
return name;
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} else {
return NULL;
}
}
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int get_color(long index)
{
file *file = get_file(index);
if (file != NULL) {
int color = file->color;
if (!color) {
perror("ccc");
}
return color;
} else {
return 8; /* white */
}
}
/*
* Construct a formatted line for display
*/
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char *get_line(long index)
{
file *file = get_file(index);
if (file != NULL) {
char *name = strdup(file->path);
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char *stats = strdup(file->stats);
size_t length = strlen(name) + strlen(stats) + 2; /* one for space and one for null */
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char *line = memalloc(length * sizeof(char));
name = basename(name);
if (name == NULL || stats == NULL)
perror("ccc");
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snprintf(line, length, "%s %s", stats, name);
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return line;
} else {
return NULL;
}
}