add patch to erase scrollback with clear

1 files changed, 9 insertions, 0 deletions

diff --git a/st.c b/st.c
index f98ec34..28a3aaf 100644
--- a/st.c
+++ b/st.c
@@ -194,6 +194,7 @@ static void stty(char **);
 static void sigchld(int);
 static void ttywriteraw(const char *, size_t);
 
+static void histclean(void);
 static void csidump(void);
 static void csihandle(void);
 static void readcolonargs(char **, int, int[][CAR_PER_ARG]);
@@ -749,6 +750,7 @@ selclear(void)
 		return;
 	selremove();
 	tsetdirt(sel.nb.y, sel.ne.y);
+        histclean();
 }
 
 void
@@ -985,6 +987,13 @@ ttywrite(const char *s, size_t n, int may_echo)
 }
 
 void
+histclean()
+{
+  for (int i = 0; i < HISTSIZE; i++)
+    term.hist[i] = xmalloc(term.col * sizeof(Glyph));
+}
+
+void
 ttywriteraw(const char *s, size_t n)
 {
 	fd_set wfd, rfd;