FEAT: Way to combine DATE! and TIME! without a variable

resolves: Oldes/Rebol-wishes#1

Author: Oldes

src/core/t-date.c

@@ -435,6 +435,15 @@
 
 	if (IS_DATE(arg)) {
 		*val = *arg;
+		if (IS_TIME(++arg)) {
+			// make date! [1-1-2000 100:0]
+			// we must get date parts here so can be used
+			// for time normalization later
+			day   = VAL_DAY(val) - 1;
+			month = VAL_MONTH(val) - 1;
+			year  = VAL_YEAR(val);
+			goto set_time;
+		}
 		return TRUE;
 	}
 
@@ -463,6 +472,7 @@
 	day--;
 	month--;
 
+set_time:
 	if (IS_TIME(arg)) {
 		secs = VAL_TIME(arg);
 		arg++;
@@ -812,7 +822,7 @@
 				bp = Qualify_String(arg, 45, &len, FALSE); // can trap, ret diff str
 				if (Scan_Date(bp, len, D_RET)) return R_RET;
 			}
-			else if (ANY_BLOCK(arg) && VAL_BLK_LEN(arg) >= 3) {
+			else if (ANY_BLOCK(arg) && VAL_BLK_LEN(arg) >= 1) {
 				if (MT_Date(D_RET, VAL_BLK_DATA(arg), REB_DATE)) {
 					return R_RET;
 				}

src/tests/units/date-test.r3

@@ -43,6 +43,16 @@ Rebol [
 ===end-group===
 
 ===start-group=== "TO DATE!"
+	--test-- "make date!"
+		--assert 1-Feb-0003 = make date! [1 2 3]
+		--assert 1-Feb-0003/4:00 = make date! [1 2 3 4:0]
+		--assert 1-Feb-0003/4:00+5:00 = make date! [1 2 3 4:0 5:0]
+		;@@ https://github.com/Oldes/Rebol-wishes/issues/1
+		--assert 1-Jan-2000 = make date! [1-1-2000]
+		--assert 1-Jan-2000/10:00 = make date! [1-1-2000 10:0]
+		--assert 1-Jan-2000/10:00+2:00 = make date! [1-1-2000 10:0 2:0]
+		--assert 5-Jan-2000/4:00 = make date! [1-1-2000 100:0]
+		
 	--test-- "invalid input"
 		;@@ https://github.com/Oldes/Rebol-issues/issues/878
 		--assert error? try [to date! "31-2-2009"]
@@ -56,6 +66,12 @@ Rebol [
 		--assert 1-Feb-0003 = #[date! 1 2 3]
 		--assert 1-Feb-0003/4:00 = #[date! 1 2 3 4:0]
 		--assert 1-Feb-0003/4:00+5:00 = #[date! 1 2 3 4:0 5:0]
+		;@@ https://github.com/Oldes/Rebol-wishes/issues/1
+		--assert 1-Jan-2000 = #[date! 1-1-2000]
+		--assert 1-Jan-2000/10:00 = #[date! 1-1-2000 10:0]
+		--assert 1-Jan-2000/10:00+2:00 = #[date! 1-1-2000 10:0 2:0]
+		--assert 5-Jan-2000/4:00 = #[date! 1-1-2000 100:0]
+
 	--test-- "#[date!] invalid"
 		--assert error? try [load {#[date!]}]
 		--assert error? try [load {#[date! 1]}]