From c91061498ca9137c0bb2e65765ab15c1439941fd Mon Sep 17 00:00:00 2001
From: George Abbott <george@gabbott.dev>
Date: Mon, 9 Oct 2023 18:11:41 +0100
Subject: Another commit with some more progress

---
 source/sort.d | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 50 insertions(+)
 create mode 100644 source/sort.d

(limited to 'source/sort.d')

diff --git a/source/sort.d b/source/sort.d
new file mode 100644
index 0000000..9baa667
--- /dev/null
+++ b/source/sort.d
@@ -0,0 +1,50 @@
+/* For sorting the entries as per the -o flag.
+ * This allows a list of entries to be sorted, 
+ * e.g. title-alphabetic, date-reverse, date-forward.
+ */
+
+enum SortMode
+{
+	/* For instance:
+	 *   TitleAA, TitleZZ, TitleFF
+	 * becomes
+	 *   TitleAA, TitleFF, TitleZZ
+	 */ 
+	TitleAlphabetic;
+
+	/* For instance:
+	 *   2023-10-01, 2023-10-05, 2023-10-03
+	 * becomes
+	 *   2023-10-05, 2023-10-03, 2023-10-01
+	 */
+	DateReverse;
+
+	/* For instance:
+	 *   2023-10-01, 2023-10-05, 2023-10-03
+	 * becomes
+	 *   2023-10-01, 2023-10-03, 2023-10-05
+	 */
+	DateForwards;
+}
+
+// TODO: write sorting functions.
+Entry[] sort_title_alphabetic(Entry[] entries) { return entries; }
+Entry[] sort_date_reverse(Entry[] entries) { return entries; }
+Entry[] sort_date_forward(Entry[] entries) { return entries; }
+
+
+Entry[] sort(Entry[] entries, SortMode sort_mode)
+{
+	switch (sort_mode)
+	{
+		case SortMode.TitleAlphabetic:
+			return sort_title_alphabetic(entries);
+		case SortMode.DateReverse:
+			return sort_date_reverse(entries);
+		case SortMode.DateForward:
+			return sort_date_forward(entries);
+	}
+}
+
+
+
-- 
cgit v1.2.1