diff options
Diffstat (limited to 'columns.c')
| -rw-r--r-- | columns.c | 161 |
1 files changed, 161 insertions, 0 deletions
diff --git a/columns.c b/columns.c new file mode 100644 index 0000000..a729cd2 --- /dev/null +++ b/columns.c @@ -0,0 +1,161 @@ +/* + * columns.c - This file contains logic for drawing columns. + */ + +#include <string.h> +#include <stdio.h> +#include <time.h> +#include <sys/stat.h> + +#include "columns.h" +#include "entry.h" + +#define E_ISDIR(e) (S_ISDIR(S_ISLNK((e)->info.st_mode) ? (e)->linkedmode : (e)->info.st_mode)) + +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] = ' '; + } +} + +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(entry_t *entry, const char *color, char *buf, int width) { + (void)color; + timeago(buf, entry->info.st_mtime); + lpad(buf, width); +} + +void col_areltime(entry_t *entry, const char *color, char *buf, int width) { + (void)color; + timeago(buf, entry->info.st_atime); + lpad(buf, width); +} + +void col_creltime(entry_t *entry, const char *color, char *buf, int width) { + (void)color; + timeago(buf, entry->info.st_ctime); + lpad(buf, width); +} + +void col_mtime(entry_t *entry, const char *color, char *buf, int width) { + (void)color; + strftime(buf, (size_t)width, TIME_FMT, localtime(&(entry->info.st_mtime))); +} + +void col_atime(entry_t *entry, const char *color, char *buf, int width) { + (void)color; + strftime(buf, (size_t)width, TIME_FMT, localtime(&(entry->info.st_atime))); +} + +void col_ctime(entry_t *entry, const char *color, char *buf, int width) { + (void)color; + strftime(buf, (size_t)width, TIME_FMT, localtime(&(entry->info.st_ctime))); +} + +void col_selected(entry_t *entry, const char *color, char *buf, int width) { + (void)width; + buf = stpcpy(buf, IS_SELECTED(entry) ? SELECTED_INDICATOR : NOT_SELECTED_INDICATOR); + buf = stpcpy(buf, color); +} + +void col_perm(entry_t *entry, const char *color, char *buf, int width) { + (void)color; (void)width; + sprintf(buf, " %03o", entry->info.st_mode & 0777); +} + +void col_random(entry_t *entry, const char *color, char *buf, int width) +{ + (void)color; + sprintf(buf, "%*d", width, entry->shufflepos); +} + +void col_size(entry_t *entry, const char *color, char *buf, int width) +{ + (void)color; (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(entry_t *entry, const char *color, char *buf, int width) +{ + (void)width; + if (entry->no_esc) buf = stpcpy(buf, entry->name); + else buf = stpcpy_escaped(buf, entry->name, color); + + if (E_ISDIR(entry)) buf = stpcpy(buf, "/"); + + if (!entry->linkname) return; + + buf = stpcpy(buf, "\033[2m -> \033[3m"); + 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"); +} |