Fix extra bracketed paste markers when pasting >8kb

Before this patch, when pasting over BUFSIZE (8192 bytes here), st would
do the following:

    \e[200~...8192 bytes...\e[201~\e[200~...remaining bytes...\e[201~

With this patch, the start marker is only sent when the offset is 0 (at
the beginning of selnotify) and the end marker is only sent when the
remaining bytes to read are 0 (at the end).

For short pastes, both conditions are true in the same iteration.

For long pastes, it removes the extra markers in the middle, keeping the
intended wrapping:

    \e[200~...8192 bytes......remaining bytes...\e[201~

Signed-off-by: Christoph Lohmann <20h@r-36.net>

diff --git a/st.c b/st.c
index bcf74b3..9de30ec 100644 (file)
--- a/st.c
+++ b/st.c
@@ -1135,10 +1135,10 @@ selnotify(XEvent *e)
                        *repl++ = '\r';
                }
 
-               if (IS_SET(MODE_BRCKTPASTE))
+               if (IS_SET(MODE_BRCKTPASTE) && ofs == 0)
                        ttywrite("\033[200~", 6);
                ttysend((char *)data, nitems * format / 8);
-               if (IS_SET(MODE_BRCKTPASTE))
+               if (IS_SET(MODE_BRCKTPASTE) && rem == 0)
                        ttywrite("\033[201~", 6);
                XFree(data);
                /* number of 32-bit chunks returned */