From 911ba5674bc4eb53a2ed548856a50032c39ca7f2 Mon Sep 17 00:00:00 2001
From: Christoph Lohmann <20h@r-36.net>
Date: Sun, 28 Apr 2013 18:14:15 +0200
Subject: [PATCH] Selection snapping is now considering wrapping.

Thanks Alexander Rezinsky <alexrez@gmail.com> for mentioning this!
---
 st.c | 42 +++++++++++++++++++++++++++++++++++++++---
 1 file changed, 39 insertions(+), 3 deletions(-)

diff --git a/st.c b/st.c
index aa2cd08..5095315 100644
--- a/st.c
+++ b/st.c
@@ -681,13 +681,49 @@ void
 selsnap(int mode, int *x, int *y, int direction) {
 	switch(mode) {
 	case SNAP_WORD:
-		while(*x > 0 && *x < term.col-1
-				&& term.line[*y][*x + direction].c[0] != ' ') {
+		for(;;) {
+			if(direction < 0 && *x <= 0) {
+				if(*y > 0 && term.line[*y - 1][term.col-1].mode
+						& ATTR_WRAP) {
+					*y -= 1;
+					*x = term.col-1;
+				} else {
+					break;
+				}
+			}
+			if(direction > 0 && *x >= term.col-1) {
+				if(*y < term.row-1 && term.line[*y][*x].mode
+						& ATTR_WRAP) {
+					*y += 1;
+					*x = 0;
+				} else {
+					break;
+				}
+			}
+
+			if(term.line[*y][*x + direction].c[0] == ' ')
+				break;
+
 			*x += direction;
 		}
 		break;
 	case SNAP_LINE:
 		*x = (direction < 0) ? 0 : term.col - 1;
+		if(direction < 0 && *y > 0) {
+			for(; *y > 0; *y += direction) {
+				if(!(term.line[*y-1][term.col-1].mode
+						& ATTR_WRAP)) {
+					break;
+				}
+			}
+		} else if(direction > 0 && *y < term.row-1) {
+			for(; *y < term.row; *y += direction) {
+				if(!(term.line[*y][term.col-1].mode
+						& ATTR_WRAP)) {
+					break;
+				}
+			}
+		}
 		break;
 	default:
 		break;
@@ -820,7 +856,7 @@ bpress(XEvent *e) {
 			sel.snap = 0;
 		}
 		selsnap(sel.snap, &sel.bx, &sel.by, -1);
-		selsnap(sel.snap, &sel.ex, &sel.ey, 1);
+		selsnap(sel.snap, &sel.ex, &sel.ey, +1);
 		sel.b.x = sel.bx;
 		sel.b.y = sel.by;
 		sel.e.x = sel.ex;
-- 
2.20.1