commit 045a0fab4f80b57f4a982ae6bc5f33fe21d66111
from: Jakub Leszczak <szatan@gecc.xyz>
via: Hiltjo Posthuma <hiltjo@codemadness.org>
date: Tue May 12 13:38:17 2020 UTC

Fix selection: selscroll

commit - 9c30066e73f0105c3fccb7582c8172d5117857b3
commit + 045a0fab4f80b57f4a982ae6bc5f33fe21d66111
blob - 7c15d5f68fdc6d52b75b14d0c0d63ad78215a318
blob + 0d35613e04222564ab5fee489df6e1812b0a027f
--- st.c
+++ st.c
@@ -1106,27 +1106,17 @@ selscroll(int orig, int n)
 	if (sel.ob.x == -1)
 		return;
 
-	if (BETWEEN(sel.ob.y, orig, term.bot) || BETWEEN(sel.oe.y, orig, term.bot)) {
-		if ((sel.ob.y += n) > term.bot || (sel.oe.y += n) < term.top) {
+	if (BETWEEN(sel.nb.y, orig, term.bot) != BETWEEN(sel.ne.y, orig, term.bot)) {
+		selclear();
+	} else if (BETWEEN(sel.nb.y, orig, term.bot)) {
+		sel.ob.y += n;
+		sel.oe.y += n;
+		if (sel.ob.y < term.top || sel.ob.y > term.bot ||
+		    sel.oe.y < term.top || sel.oe.y > term.bot) {
 			selclear();
-			return;
-		}
-		if (sel.type == SEL_RECTANGULAR) {
-			if (sel.ob.y < term.top)
-				sel.ob.y = term.top;
-			if (sel.oe.y > term.bot)
-				sel.oe.y = term.bot;
 		} else {
-			if (sel.ob.y < term.top) {
-				sel.ob.y = term.top;
-				sel.ob.x = 0;
-			}
-			if (sel.oe.y > term.bot) {
-				sel.oe.y = term.bot;
-				sel.oe.x = term.col;
-			}
+			selnormalize();
 		}
-		selnormalize();
 	}
 }