support REP (repeat) escape sequence

The sequence \e[Nb prints the last printed char N (more) times if it's
printable, and it's ignored after newline or other control chars.

This is Ecma-048/ANSI-X3.6 sequence and not DEC VT. It's supported by
xterm, and ncurses uses it when possible, e.g. when TERM is xterm* (and
with this commit also st*).

xterm supports only codepoints<=255, possibly due to internal limits.
We support any value/codepoint which was placed in a cell.

To test:
- tput rep 65 4 -> prints 'AAAA'
- printf "\342\225\246\033[4b" -> prints U+2566 1+4 times.

1 files changed, 1 insertions, 0 deletions

diff --git a/st.info b/st.info
index d0694e2..e5393db 100644
--- a/st.info
+++ b/st.info
@@ -184,6 +184,7 @@ st-mono| simpleterm monocolor,
 # XTerm extensions
         rmxx=\E[29m,
         smxx=\E[9m,
+        rep=%p1%c\E[%p2%{1}%-%db,
 # tmux extensions, see TERMINFO EXTENSIONS in tmux(1)
         Tc,
         Ms=\E]52;%p1%s;%p2%s\007,