1 files changed, 17 insertions, 0 deletions
diff --git a/src/options.c b/src/options.c
index 8a2216d..293ca3d 100644
--- a/src/options.c
+++ b/src/options.c
@@ -19,6 +19,7 @@
 /* === GLOBAL VARIABLES === */
 struct option long_options[] = {
     { "help", no_argument, 0, 0 },
+    { "format-string", required_argument, 0, 0 },
     { "long-timestamp", no_argument, 0, 0 },
     { "reverse-sort", no_argument, 0, 0 },
     { "show-hidden-entries", no_argument, 0, 0 },
@@ -31,6 +32,7 @@ bool option_sort_reverse_order = false;
 enum esort_type option_sort_type = SORT_BY_SIZE;
 bool option_show_hidden_entries = false;
 bool option_timestamp_long = false;
+char *option_format_string = NULL;
 
 /* There are three fields regarding time, valid values 'a','c', 'm':
  * st_atime / st_atim.tv_sec - time of the last access
@@ -49,6 +51,8 @@ void usage(char *executable) {
     /* long name, short name, optional argument, explanation */
     fprintf(stderr, " %-25s %2s %10s  - %s\n", "--help", "-h", "",
             "Show this message and exit");
+    fprintf(stderr, " %-25s %2s %10s  - %s\n", "--format-string", "", "format",
+            "define columns to print, details below");
     fprintf(stderr, " %-25s %2s %10s  - %s\n", "--long-timestamp", "-t", "",
             "Print timestamp in long form yyyymmdd HH:MM:SS ZONE");
     fprintf(stderr, " %-25s %2s %10s  - %s\n", "--reverse-sort", "", "",
@@ -63,6 +67,14 @@ void usage(char *executable) {
     /* fputc_width_x('-', 72, stderr); */
 
     fprintf(stderr, "\n\n--sort-by variants: name | size | time\n");
+
+    fprintf(stderr, "\n--format-string: Characters unlike the following are ignored\n");
+    fprintf(stderr, " n - name\n");
+    fprintf(stderr, " s - size\n");
+    fprintf(stderr, " t - time defined by --time-field (default: modification time)\n");
+    fprintf(stderr, " A - access time\n");
+    fprintf(stderr, " C - change time\n");
+    fprintf(stderr, " M - modification time\n");
 }
 
 
@@ -102,6 +114,11 @@ void set_option(const char *option_name, char *option_argument) {
         exit(EXIT_FAILURE);
     }
 
+    if (strcmp("format-string", option_name) == 0) {
+        option_format_string = option_argument;
+        return;
+    }
+
     if (strcmp("sort-by", option_name) == 0) {
         if (strncmp("name", option_argument, 4) == 0) {
             option_sort_type = SORT_BY_NAME;