st.git/st.c, branch main

added scrollback patch

2026-04-13T12:38:40+00:00

st: guard tsetdirt() against zero-sized terminal

2026-01-16T13:12:07+00:00

tsetdirt() assumes term.row > 0. During early init or resize paths this may not hold, leading to out-of-bounds access. Bail out early if there are no rows.

Disable bracked paste in reset

2025-12-02T19:09:47+00:00

Sadly, there are too many programs today that enable this mode and it is becoming very common to find the terminal adding characters before and after in every of your pastes. A reset should disable this mode.

add a few comments

2025-08-09T12:22:28+00:00

Support OSC 110, 111, and 112 for resetting colors

2025-08-09T10:34:01+00:00

This adds support for OSC 110, 111, and 112 escape sequences to reset the foreground, background, and cursor colors in the terminal. The changes include handling these sequences in the `strhandle` function of `st.c`, allowing applications to reset colors to their default values. The OSC sequences originated from Xterm control sequences and are now widely used in terminal applications and supported by many terminal emulators. For applications, this allows them to reset colors to default values without needing to know the colors beforehand. Signed-off-by: Ayman Bagabas

Eat up "CSI 58" sequences

2025-07-27T18:06:54+00:00

This is used in the wild by systemd systemctl for example and st misinterpreted it as "blink", because it didn't know "58", then saw "5" as "blink", and then didn't know "245". This should print "foo" as normal text: printf '\e[58:5:245mfoo\n' printf '\e[58:2:50:100:200mfoo\n'

Do not interpret CSI ? u as DECRC

2025-01-30T16:50:37+00:00

The kitty keyboard protocol docs recommend CSI ? u to query support for that protocol, see https://sw.kovidgoyal.net/kitty/keyboard-protocol/ For better or worse, fish shell uses this query to work around bugs in other terminals triggered by requesting that protocol via CSI = 5 u. Unfortunately, st interprets CSI ? u as DECRC (restore cursor position). reproduce with 'printf "\x1b[?u"; cat'. fish could work around this by switching to the alternate screen before running this query; but that might cause tearing on terminals that don't support Synchronized Output. I'm not sure. In the meantime, let's correct our parser. This adds a redundant else-after-return, for consistency with the surrounding code.

Clear screen: Fix edge case

2024-12-06T12:42:50+00:00

With sequence \e[1J, if cursor is on second line, clear the first line.

support colons in SGR character attributes

2024-05-01T18:45:39+00:00

Patch by Mikhail Kot With some modifications to behave more like xterm (see note below). Example: printf '\033[48;2;255:0:0mtest\n' https://invisible-island.net/xterm/ctlseqs/ctlseqs.html Some notes: "CSI Pm m Character Attributes (SGR). [...] o xterm allows either colons (standard) or semicolons (legacy) to separate the subparameters (but after the first colon, colons must be used).

Revert "Fix cursor move with wide glyphs"

2024-03-30T11:37:06+00:00

This reverts commit 7473a8d1a57e5f9aba41b953f4e498c35e1c9dc5. This patch needs some more work. It caused regressions with programs that use GNU readline, etc. Original test-case example from Tim Culverhouse : printf " 😀" && sleep 2 && printf "\e[D" && sleep 2 && printf "\e[D" && sleep 2 After the patch it caused regressions, example test-case: printf "A字\bB\n"