added scrollback patch

1 files changed, 35 insertions, 0 deletions

diff --git a/st.c.rej b/st.c.rej
new file mode 100644
index 0000000..72ef8d1
--- /dev/null
+++ b/st.c.rej
@@ -0,0 +1,35 @@
+--- st.c
++++ st.c
+@@ -1087,14 +1087,14 @@ tswapscreen(void)
+ void
+ kscrollup(const Arg *a)
+ {
+-	int n = a->i;
++	float n = a->f;
+ 
+ 	if (IS_SET(MODE_ALTSCREEN))
+ 		return;
+ 
+-	if (n < 0) n = (-n) * term.row;
++	if (n < 0) n = MAX((-n) * term.row, 1);
+ 	if (n > TSCREEN.size - term.row - TSCREEN.off) n = TSCREEN.size - term.row - TSCREEN.off;
+-	while (!TLINE(-n)) --n;
++	while (!TLINE((int)-n)) --n;
+ 	TSCREEN.off += n;
+ 	selscroll(0, n);
+ 	tfulldirt();
+@@ -1104,12 +1104,12 @@ void
+ kscrolldown(const Arg *a)
+ {
+ 
+-	int n = a->i;
++	float n = a->f;
+ 
+ 	if (IS_SET(MODE_ALTSCREEN))
+ 		return;
+ 
+-	if (n < 0) n = (-n) * term.row;
++	if (n < 0) n = MAX((-n) * term.row, 1);
+ 	if (n > TSCREEN.off) n = TSCREEN.off;
+ 	TSCREEN.off -= n;
+ 	selscroll(0, -n);