module/clock: user can now specify the date/time format strings

config-verify.c

@@ -313,7 +313,14 @@ verify_module_clock(keychain_t *chain, const struct yml_node *node)
             return false;
         }
 
-        if (strcmp(key, "content") == 0) {
+        if (strcmp(key, "date-format") == 0 ||
+            strcmp(key, "time-format") == 0)
+        {
+            if (!verify_string(chain_push(chain, key), it.value))
+                return false;
+        }
+
+        else if (strcmp(key, "content") == 0) {
             if (!verify_particle(chain_push(chain, key), it.value))
                 return false;
         }

config.c

@@ -423,8 +423,17 @@ static struct module *
 module_clock_from_config(const struct yml_node *node, const struct font *parent_font)
 {
     const struct yml_node *c = yml_get_value(node, "content");
+    const struct yml_node *date_format = yml_get_value(node, "date-format");
+    const struct yml_node *time_format = yml_get_value(node, "time-format");
+
     assert(c != NULL);
-    return module_clock(particle_from_config(c, parent_font));
+    assert(date_format == NULL || yml_is_scalar(date_format));
+    assert(time_format == NULL || yml_is_scalar(time_format));
+
+    return module_clock(
+        particle_from_config(c, parent_font),
+        date_format != NULL ? yml_value_as_string(date_format) : "%x",
+        time_format != NULL ? yml_value_as_string(time_format) : "%H:%M");
 }
 
 static struct module *

modules/clock.c

@@ -1,5 +1,6 @@
 #include "clock.h"
 #include <stdlib.h>
+#include <string.h>
 #include <time.h>
 #include <assert.h>
 
@@ -9,6 +10,8 @@
 
 struct private {
     struct particle *label;
+    char *date_format;
+    char *time_format;
 };
 
 static void
@@ -16,6 +19,8 @@ destroy(struct module *mod)
 {
     struct private *m = mod->private;
     m->label->destroy(m->label);
+    free(m->time_format);
+    free(m->date_format);
     free(m);
     module_default_destroy(mod);
 }
@@ -27,11 +32,11 @@ content(struct module *mod)
     time_t t = time(NULL);
     struct tm *tm = localtime(&t);
 
-    char time_str[1024];
-    strftime(time_str, sizeof(time_str), "%H:%M", tm);
-
     char date_str[1024];
-    strftime(date_str, sizeof(date_str), "%e %b", tm);
+    strftime(date_str, sizeof(date_str), m->date_format, tm);
+
+    char time_str[1024];
+    strftime(time_str, sizeof(time_str), m->time_format, tm);
 
     struct tag_set tags = {
         .tags = (struct tag *[]){tag_new_string(mod, "time", time_str),
@@ -74,10 +79,13 @@ run(struct module_run_context *ctx)
 }
 
 struct module *
-module_clock(struct particle *label)
+module_clock(struct particle *label,
+             const char *date_format, const char *time_format)
 {
     struct private *m = malloc(sizeof(*m));
     m->label = label;
+    m->date_format = strdup(date_format);
+    m->time_format = strdup(time_format);
 
     struct module *mod = module_common_new();
     mod->private = m;

modules/clock.h

@@ -3,4 +3,5 @@
 #include "../module.h"
 #include "../particle.h"
 
-struct module *module_clock(struct particle *label);
+struct module *module_clock(
+    struct particle *label, const char *date_format, const char *time_format);