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/*
* This file contains logic for drawing columns.
*/
static void lpad(char *buf, int width)
{
int len = strlen(buf);
if (len < width) {
int pad = width - len;
memmove(&buf[pad], buf, (size_t)len + 1);
while (pad > 0) buf[--pad] = ' ';
}
}
/*
* Returns the color of a file listing, given its mode.
*/
static const char* color_of(mode_t mode)
{
if (S_ISDIR(mode)) return DIR_COLOR;
else if (S_ISLNK(mode)) return LINK_COLOR;
else if (mode & (S_IXUSR | S_IXGRP | S_IXOTH))
return EXECUTABLE_COLOR;
else return NORMAL_COLOR;
}
static char* stpcpy_escaped(char *buf, const char *str, const char *color)
{
static const char *escapes = " abtnvfr e";
for (const char *c = str; *c; ++c) {
if (*c > 0 && *c <= '\x1b' && escapes[(int)*c] != ' ') { // "\n", etc.
buf += sprintf(buf, "\033[31m\\%c%s", escapes[(int)*c], color);
} else if (*c >= 0 && !(' ' <= *c && *c <= '~')) { // "\x02", etc.
buf += sprintf(buf, "\033[31m\\x%02X%s", *c, color);
} else {
*(buf++) = *c;
}
}
*(buf++) = '\0';
return buf;
}
static void timeago(char *buf, time_t t)
{
const int SECOND = 1;
const int MINUTE = 60 * SECOND;
const int HOUR = 60 * MINUTE;
const int DAY = 24 * HOUR;
const int MONTH = 30 * DAY;
const int YEAR = 365 * DAY;
time_t now = time(0);
double delta = difftime(now, t);
if (delta < 1.5)
sprintf(buf, "a second");
else if (delta < 1 * MINUTE)
sprintf(buf, "%d seconds", (int)delta);
else if (delta < 2 * MINUTE)
sprintf(buf, "a minute");
else if (delta < 1 * HOUR)
sprintf(buf, "%d minutes", (int)delta/MINUTE);
else if (delta < 2 * HOUR)
sprintf(buf, "an hour");
else if (delta < 1 * DAY)
sprintf(buf, "%d hours", (int)delta/HOUR);
else if (delta < 2 * DAY)
sprintf(buf, "yesterday");
else if (delta < 1 * MONTH)
sprintf(buf, "%d days", (int)delta/DAY);
else if (delta < 2 * MONTH)
sprintf(buf, "a month");
else if (delta < 1 * YEAR)
sprintf(buf, "%d months", (int)delta/MONTH);
else if (delta < 2 * YEAR)
sprintf(buf, "a year");
else
sprintf(buf, "%d years", (int)delta/YEAR);
}
void col_mreltime(bb_t *bb, entry_t *entry, char *buf, int width) {
(void)bb;
timeago(buf, entry->info.st_mtime);
lpad(buf, width);
}
void col_areltime(bb_t *bb, entry_t *entry, char *buf, int width) {
(void)bb;
timeago(buf, entry->info.st_atime);
lpad(buf, width);
}
void col_creltime(bb_t *bb, entry_t *entry, char *buf, int width) {
(void)bb;
timeago(buf, entry->info.st_ctime);
lpad(buf, width);
}
void col_mtime(bb_t *bb, entry_t *entry, char *buf, int width) {
(void)bb;
strftime(buf, (size_t)width, BB_TIME_FMT, localtime(&(entry->info.st_mtime)));
}
void col_atime(bb_t *bb, entry_t *entry, char *buf, int width) {
(void)bb;
strftime(buf, (size_t)width, BB_TIME_FMT, localtime(&(entry->info.st_atime)));
}
void col_ctime(bb_t *bb, entry_t *entry, char *buf, int width) {
(void)bb;
strftime(buf, (size_t)width, BB_TIME_FMT, localtime(&(entry->info.st_ctime)));
}
void col_selected(bb_t *bb, entry_t *entry, char *buf, int width) {
(void)bb; (void)width;
strcpy(buf, IS_SELECTED(entry) ? SELECTED_INDICATOR : NOT_SELECTED_INDICATOR);
}
void col_perm(bb_t *bb, entry_t *entry, char *buf, int width) {
(void)bb; (void)width;
sprintf(buf, " %03o", entry->info.st_mode & 0777);
}
void col_random(bb_t *bb, entry_t *entry, char *buf, int width)
{
(void)width;
double k = (double)entry->shufflepos/(double)bb->nfiles;
int color = (int)(k*232 + (1.-k)*255);
sprintf(buf, "\033[48;5;%dm \033[0m%s", color,
entry == bb->files[bb->cursor] ? CURSOR_COLOR : "\033[0m");
}
void col_size(bb_t *bb, entry_t *entry, char *buf, int width)
{
(void)bb; (void)width;
int j = 0;
const char* units = "BKMGTPEZY";
double bytes = (double)entry->info.st_size;
while (bytes > 1024) {
bytes /= 1024;
j++;
}
sprintf(buf, " %6.*f%c ", j > 0 ? 1 : 0, bytes, units[j]);
}
void col_name(bb_t *bb, entry_t *entry, char *buf, int width)
{
(void)width;
char color[128];
strcpy(color, color_of(entry->info.st_mode));
if (entry == bb->files[bb->cursor]) strcpy(color, CURSOR_COLOR);
buf = stpcpy(buf, color);
int use_fullname = strcmp(bb->path, "<selection>") == 0;
char *name = use_fullname ? entry->fullname : entry->name;
if (entry->no_esc) buf = stpcpy(buf, name);
else buf = stpcpy_escaped(buf, name, color);
if (E_ISDIR(entry)) buf = stpcpy(buf, "/");
if (!entry->linkname) return;
if (entry != bb->files[bb->cursor])
buf = stpcpy(buf, "\033[37m");
buf = stpcpy(buf, "\033[2m -> \033[3m");
strcpy(color, color_of(entry->linkedmode));
if (entry == bb->files[bb->cursor]) strcat(color, CURSOR_COLOR);
strcat(color, "\033[3;2m");
buf = stpcpy(buf, color);
if (entry->link_no_esc) buf = stpcpy(buf, entry->linkname);
else buf = stpcpy_escaped(buf, entry->linkname, color);
if (S_ISDIR(entry->linkedmode))
buf = stpcpy(buf, "/");
buf = stpcpy(buf, "\033[22;23m");
}
typedef struct {
const char *name;
void (*render)(bb_t *, entry_t *, char *, int);
} column_t;
static column_t columns[255] = {
['*'] = {.name = "*", .render = col_selected},
['n'] = {.name = "Name ", .render = col_name},
['s'] = {.name = " Size", .render = col_size},
['p'] = {.name = "Perm", .render = col_perm},
['m'] = {.name = "Modified", .render = col_mreltime},
['M'] = {.name = " Modified ", .render = col_mtime},
['a'] = {.name = "Accessed", .render = col_areltime},
['A'] = {.name = " Accessed ", .render = col_atime},
['c'] = {.name = " Created", .render = col_creltime},
['C'] = {.name = " Created ", .render = col_ctime},
['r'] = {.name = "R", .render = col_random},
};
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