From 76a4936f065ef0f84ff61c74c8f5c800ca019011 Mon Sep 17 00:00:00 2001
From: Philipp Gesang <phg@phi-gamma.net>
Date: Fri, 6 Jul 2018 15:03:42 +0200
Subject: rem: distinguish between dates with day and minute granularity

---
 rem.lua | 29 +++++++++++++++++++----------
 1 file changed, 19 insertions(+), 10 deletions(-)

diff --git a/rem.lua b/rem.lua
index 3dd1aeb..a696f83 100644
--- a/rem.lua
+++ b/rem.lua
@@ -169,7 +169,7 @@ local rem_of_vcalendars do
     return nil
   end
 
-  local rem_date = function (d, loctime)
+  local rem_date_time = function (d, loctime)
     if loctime == true then
       return osdate ("%b %d %Y AT %H:%M", d)
     end
@@ -177,6 +177,14 @@ local rem_of_vcalendars do
     return osdate ("!%b %d %Y AT %H:%M", d)
   end
 
+  local rem_date = function (d, loctime)
+    if loctime == true then
+      return osdate ("%b %d %Y", d)
+    end
+
+    return osdate ("!%b %d %Y", d)
+  end
+
   local rem_duration = function (dt)
     --[[-- remind(1): Note that duration is specified in hours and minutes. --]]--
 
@@ -196,27 +204,28 @@ local rem_of_vcalendars do
     return stringformat ("%0.2d:%s", dt, ret)
   end
 
-  local repeat_of_duration = function (te)
+  local repeat_of_duration = function (t0, te)
+    local from = rem_date (t0)
     local till = rem_date (te)
 
-    return stringformat ("*1 UNTIL %s", till)
+    return stringformat ("%s *1 UNTIL %s", from, till)
   end
 
 
   local rem_date_duration = function (t0, te, loctime)
     local dt = te - t0
-    local s_t0 = rem_date (t0, loctime)
 
     if dt == 0 or dt == time_f_day then
-      return s_t0
+      --- no duration or exactly 1d → no “at” clause
+      return rem_date (t0, loctime)
     end
 
-    if dt > time_f_day then --- needs repeat claus
-      local rep = repeat_of_duration (te)
-
-      return stringformat ("%s %s", s_t0, rep)
+    if dt > time_f_day then
+      --- duration of multiple days → needs repeat clause
+      return repeat_of_duration (t0, te)
     end
 
+    local s_t0 = rem_date_time (t0, loctime)
     local s_dt = rem_duration (dt)
 
     return stringformat ("%s DURATION %s", s_t0, s_dt)
@@ -228,7 +237,7 @@ local rem_of_vcalendars do
 
     if t0 ~= nil then
       if te ~= nil then return rem_date_duration (t0, te, loctime) end
-      return rem_date (t0, loctime)
+      return rem_date_time (t0, loctime)
     end
 
     return nil
-- 
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