Commit Graph

291 Commits

Author SHA1 Message Date
a 9ec9915f30
noot 2024-05-21 22:30:50 -05:00
a c2f4b0b92f
noot 2024-05-10 04:32:49 -05:00
Bakkeby aa5957495d support colons in SGR character attributes
Patch by Mikhail Kot <to@myrrc.dev>
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).
2024-05-02 09:28:20 +02:00
veltza 118e965d0c
sixel: add support for fully transparent bg (P2=1) (#132)
P2 selects how the terminal draws the background color.

P2                  Meaning
0 or 2 (default)    Pixel positions specified as 0 are set to the
                    current background color.
1                   Pixel positions specified as 0 remain at their
                    current color.

Both modes are now supported.

Ref. https://www.vt100.net/docs/vt3xx-gp/chapter14.html
2024-04-17 18:04:27 +02:00
Bakkeby dd8675943d Reset title when an empty title string is given
With this patch, st will reset its window title when an empty string is
given as the terminal title. For example:
	printf "\033]0;\007"

Some applications, like termdown, expect this functionality. xterm
implements it, but it seems that most other terminal emulators don't.
In any case, I don't see why there should ever be a case where the st
window doesn't have a title property.

Ref.
https://git.suckless.org/st/commit/497a75638291454875ba1ec8d484c7f3d6f41d66.html
2024-04-03 21:43:56 +02:00
veltza 9b463ac36d
sixel: prevent crashing when size is zero (#129)
Crashing happens when you zoom out and the width or height of an image
becomes zero.
2024-04-02 20:05:32 +02:00
Bakkeby fdae39e8b8 bump version to 0.9.1
ref.
https://git.suckless.org/st/commit/5ce971628106fb767ef91bf4386227423f5fdf98.html
2024-03-20 08:04:33 +01:00
Bakkeby dba3d178a4 config.def.h: improve latency for the default configuration
Ref.
https://git.suckless.org/st/commit/f20e169a20f3ee761f7e09714f1d4c10916cf4c6.html
2024-03-17 15:38:45 +01:00
Bakkeby 06bb70e2d1 externalpipe + reflow: compatibility fix correction ref. #125 2024-03-14 23:26:47 +01:00
Bakkeby f773016680 alpha: multiply each RGB value with alpha for a darker blend 2024-03-14 22:30:15 +01:00
Bakkeby 4997f1b1ae reflow: fix for scrollback buffer content getting lost following ctrl+l ref. #123 2024-03-14 16:58:22 +01:00
Bakkeby d318b3c03f externalpipe + reflow compatibility fix ref. #122 2024-03-14 10:01:37 +01:00
Bakkeby 8e96ad302c netwmicon: correction for when including libraries 2024-03-14 09:15:57 +01:00
Bakkeby 25a28a61a3 netwmicon_ff - increase buffer size to 16 2024-03-13 11:56:11 +01:00
Bakkeby 6a5561cd76 Minor changes to description 2024-03-13 10:44:43 +01:00
Stein Gunnar Bakkeby 0b8055a271
netwmicon: upgrading patch and adding farbfeld variant (#121) 2024-03-13 10:35:17 +01:00
Stein Gunnar Bakkeby 3b87b07404
Adding reflow patch (#120) 2024-03-13 10:33:51 +01:00
veltza 9a41526bfb
Fix buffer overflow in xdrawglyph() (#119)
The buffer overflow occurs when the ligatures patch is enabled and
xmakeglyphfontspecs() returns more than one XftGlyphFontSpec.

Ref. https://github.com/cog1to/st-ligatures/issues/35
2024-03-11 22:54:16 +01:00
Bakkeby a28f3e0d39 Adding back lines that were removed by mistake, fixes mouse double click to select 2024-03-11 22:49:20 +01:00
Bakkeby 7976e611e3 ligatures - moving hbcreatebuffer out of xresources condition ref. #118 2024-03-10 23:41:12 +01:00
Bakkeby 1da419eb35 ligatures + wide glyphs + vertcenter: compatibility fixes ref. #118 2024-03-10 22:18:05 +01:00
Bakkeby f87d3de2cf wide glyphs: fixing compilation error following code refactoring 2024-03-10 10:05:54 +01:00
Bakkeby 3564593563 Revert "Fix cursor move with wide glyphs" ref. #118
This reverts commit 400aa4492f.
2024-03-08 19:52:11 +01:00
Bakkeby cd37481bde sixel: moving osc_table out of sixel patch due to global dependency ref. #118 2024-03-08 19:52:00 +01:00
Bakkeby 9ddc13c0e0 drawcol = dc.col[g.bg]; 2024-03-07 23:40:50 +01:00
Bakkeby b43957b061 Optimise utf8decode() 2024-03-07 23:26:34 +01:00
Bakkeby d78d582eaa Streamline validation in utf8decode()
https://lists.suckless.org/hackers/2207/18407.html
2024-03-07 23:22:02 +01:00
Bakkeby 6d5c2b3ddb code-golfing: cleanup osc color related code
* adds missing function prototype
* move xgetcolor() prototype to win.h (that's where all the other x.c
  func prototype seems to be declared at)
* check for snprintf error/truncation
* reduces code duplication for osc 10/11/12
* unify osc_color_response() and osc4_color_response() into a single function

the latter two was suggested by Quentin Rameau in his patch review on
the hackers list.

ref.
https://git.suckless.org/st/commit/8629d9a1da72cc18568a8f146307b0e939b77ebf.html
2024-03-07 23:16:00 +01:00
Bakkeby e88f2bf20c Removing the VIM browse patch.
The general reasoning is that the vim browse patch is very invasive,
has a high level of complexity, and is incompatible with a significant
number of other patches and it complicates further maintenance.

Additionally the patch has its own scrollback mechanism which seemingly
did not work properly - and nobody seems to have complained about this
since the patch was added back in May 2021.

If you want to try out the vim browse patch then I would recommend having
a play around with the patch author's own build that has this patch
integrated:
   - https://github.com/juliusHuelsmann/st-history-vim
   - https://github.com/juliusHuelsmann/st

Alternatively a tag has been added to this repository that refers to the
last commit that still has the vim browse patch:
   - https://github.com/bakkeby/st-flexipatch/tree/VIM_BROWSE_PATCH
2024-03-07 22:35:11 +01:00
Bakkeby 340caa5d0a xmakeglyphfontspecs: fix for when not using ligatures 2024-03-07 21:59:15 +01:00
Bakkeby b7add20215 Set upper limit for REP escape sequence argument
Previously, printf 'L\033[2147483647b' would call tputc('L') 2^31 times,
making st unresponsive. This commit allows repeating the last character
at most 65535 times in order to prevent freezing and DoS attacks.

ref.
https://git.suckless.org/st/commit/95f22c53059ccd60ee701ccf2659dacd95e4e89a.html
2024-03-07 21:44:39 +01:00
Bakkeby 400aa4492f Fix cursor move with wide glyphs
st would always move back 1 column,
even with wide glyhps (using more than a single column).

The glyph rune is set on its first column,
and the other ones are to 0,
so loop until we detect the start of the previous glyph.

ref.
https://git.suckless.org/st/commit/7473a8d1a57e5f9aba41b953f4e498c35e1c9dc5.html
2024-03-07 21:43:24 +01:00
Bakkeby c089485aa4 hidecursor: add config option to disable hidecursor functionality 2024-03-07 21:43:18 +01:00
Bakkeby f79ac733f3 sixel + anysize patch compatibility fix ref. #117 2024-03-07 21:24:31 +01:00
Bakkeby 0f50ef072c ligatures: upgrading 2024-03-07 15:34:21 +01:00
Stein Gunnar Bakkeby 677c2da0be
Reworking sixel implementation based on veltza's implementation (#117)
* sixel: remove black bars from sixel images

When the images don't fully cover the text cells, black bars are added
to them. This fix removes those bars, but if you need the old behavior,
you can restore it by setting 'sixelremovebars' to zero in config.h

* sixel: fix a potential memory leak

* sixel: improve behavior with text reflow

* sixel: prevent animated gifs from choking the terminal

Animated gifs constantly spawn new images that eventually choke the
terminal because the old animation frames are kept in the image buffer.
This fix removes overlapping images from the image buffer and prevents
them from piling up.

* sixel: add zooming and clipping

* sixel: copying bulk of changes

* sixel: move sixel_parser_parse() and add missing sequences and blocks (#113)

- Move sixel_parser_parse() from tputc() to twrite()
- Add missing 8452, DECSDM, XTSMGRAPHICS and XTWINOPS sequences
- Add more conditional blocks for the scrollback and sync patches
- Remove unused reflow_y from ImageList. It is only used for the
  scrollback-reflow patch in st-sx.

* sixel: update vtiden to VT200 family

* sixel: fix scrolling issues inside tmux (#114)

tmux is using the scrolling region and sequence to clear the screen
below the shell prompt. This peculiar behavior caused the tscrollup()
function to be called, which always scrolled the images regardless of
whether they were inside the region or not. So the images moved out of
place whenever the bottom of the screen was cleared. This fix checks
that the images are inside the region before scrolling them.

* sixel: prevent images from being deleted when resizing (#115)

This fixes resizing issues outside of tmux not inside.

* Rewriting tresize logic based on veltza's proposed implementation in PR #115

* tresize: correction for tscrollup call when scrollback patch is used

---------

Co-authored-by: veltza <106755522+veltza@users.noreply.github.com>
2024-03-07 09:22:44 +01:00
Jordan Callicoat 2e0e84d56a
Add selectioncolors patch (#110)
https://st.suckless.org/patches/selectioncolors/

Closes #91
2024-02-28 14:34:06 +01:00
Bakkeby 74f19eafe9 csi: check for private marker in 'S' case
The handler for 'S' final character does not check for a private
marker. This can cause a conflict with a sequence called 'XTSMGRAPHICS'
which also has an 'S' final character, but uses the private marker '?'.
Without checking for a private marker, st will perform a scroll up
operation when XTSMGRAPHICS is seen, which can cause unexpected display
artifacts.

ref.
https://git.suckless.org/st/commit/a3f7420310be0fd778ef9fe2abf20edc2d8dc81a.html
2024-02-19 09:09:08 +01:00
veltza 76cb5801f6
sixel: fix resizing issues (#109)
Fixes #108
2023-12-12 21:29:26 +01:00
Bakkeby 3fcf0e3db7 [st][patch][ligatures] Fix ATTR_WRAP attribute handling in layout logic.
Ref. https://git.suckless.org/sites/commit/20d453defdb6ae7bb37f644a2e2831cf2097cdbb.html
2023-11-23 22:21:31 +01:00
veltza 003ab067da
Remove black bars from sixel images and add... (#107)
...support for transparency. Technically, the sixels do not have transparency,
but empty pixels are now rendered with the current background color instead
of black to make the them appear transparent. Same goes for the black bars.
The current background color makes them disappear.

There is one technical limitation with the alpha focus highlight patch.
The alpha value and background color is taken from the current background color,
so when the window is unfocused, images may have the wrong alpha and/or
background color. This can't be fixed easily.
2023-11-23 21:45:20 +01:00
Bakkeby 1af2184c87 Add terminfo entries for bracketed paste mode
Helps Vim (and hopefully others) to discover that this feature exists
without further user configuration.

ref.
https://git.suckless.org/st/commit/9846a56bd7fdc86bf788db04bbbcbde7b7eb9952.html
2023-10-08 20:24:52 +02:00
Bakkeby 1df649dfbd Unhide cursor on RIS (\033c)
It is unclear if it's "required" to do this on RIS, but it's useful when
calling reset(1) after interactive programs have crashed and garbled up
the screen.

FWIW, other terminals do it as well (tested with XTerm, VTE, Kitty,
Alacritty, Linux VT).

ref.
https://git.suckless.org/st/commit/559fdc278681c98470749adb59f01cd071720458.html
2023-10-08 20:22:22 +02:00
Bakkeby 3cbaecfa31 Fix wide glyphs breaking "nowrap" mode
Consider the following example:

    printf '\e[?7l';\
    for i in $(seq $(($(tput cols) - 1))); do printf a; done;\
    printf '🙈\n';\
    printf '\e[?7h'

Even though MODE_WRAP has been disabled, the emoji appeared on the next
line. This patch keeps wide glyphs on the same line and moves them to
the right-most possible position.

ref.
https://git.suckless.org/st/commit/8abe4bcb41aa7fda0ae00823f6a20271124150db.html
2023-10-08 20:21:13 +02:00
Bakkeby 6ade70c726 Don't scroll selection on the other screen
Fixes garbage selections when switching to/from the alternate screen.

How to reproduce:

-   Be in primary screen.
-   Select something.
-   Run this (switches to alternate screen, positions the cursor at the
    bottom, triggers selscroll(), and then goes back to primary screen):

        tput smcup; tput cup $(tput lines) 0; echo foo; tput rmcup

-   Notice how the (visual) selection now covers a different line.

The reason is that selscroll() calls selnormalize() and that cannot find
the original range anymore. It's all empty lines now, so it snaps to
"select the whole line".

ref.
https://git.suckless.org/st/commit/2fc7e532b23e2f820c6b73d352ec7c41fefa45b5.html
2023-10-08 20:19:56 +02:00
Bakkeby 859906235e Fix bounds checks of dc.col
dc.collen is the length of dc.col, not the maximum index, hence if x is
equal to dc.collen, then it's an error.

With config.def.h, the last valid index is 259, so this correctly
reports "black":

    $ printf '\033]4;259;?\e\\'

260 is an invalid index and this reports garbage instead of printing an
error:

    $ printf '\033]4;260;?\e\\'

ref.
https://git.suckless.org/st/commit/a6bbc0c96b0a1db804061b0db79101c6b26aec57.html
2023-10-08 20:18:30 +02:00
Bakkeby 4a1d981d54 Makefile: remove the options target
The Makefile used to suppress output (by using @), so this target made sense at
the time.

But the Makefile should be simple and make debugging with less abstractions or
fancy printing.  The Makefile was made verbose and doesn't hide the build
output, so remove this target.

Prompted by a question on the mailing list about the options target.

ref.
https://git.suckless.org/st/commit/eb3b894f4076f2b25afc644a1f444b5cbd96aae8.html
2023-09-22 18:16:08 +02:00
Bakkeby 1c03f10db9 sixel: only clear sixel images on RM (Reset Mode) if we are in alt screen ref. #102 2023-09-12 16:11:08 +02:00
Bakkeby c1ef3ce0d8 scrollback: clear history on reset ref. #102 2023-09-12 16:02:19 +02:00
Bakkeby 41e6f9dce6 sixel: remove images on escape code 'l' - Reset Mode (RM) ref. #102 2023-09-12 00:16:10 +02:00