pbentes/st
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Compare commits

base: pbentes:0.8.1
Branches Tags
pbentes:master pbentes:amused pbentes:patch-scrollback pbentes:patch-clickurl pbentes:patch-anysize pbentes:split pbentes:wchar
pbentes:0.9.2 pbentes:0.9.1 pbentes:0.9 pbentes:0.8.5 pbentes:0.8.4 pbentes:0.8.3 pbentes:0.8.2 pbentes:0.8.1 pbentes:0.8 pbentes:0.7 pbentes:0.6 pbentes:0.5 pbentes:0.4.1 pbentes:0.4 pbentes:0.3 pbentes:0.2.1 pbentes:0.2 pbentes:0.1.1 pbentes:0.1
..
compare: pbentes:d0c62ba1db367c0ae07e10f0fe64625358ca20b8
Branches Tags
pbentes:amused pbentes:patch-scrollback pbentes:patch-clickurl pbentes:master pbentes:patch-anysize pbentes:split pbentes:wchar
pbentes:0.9.2 pbentes:0.9.1 pbentes:0.9 pbentes:0.8.5 pbentes:0.8.4 pbentes:0.8.3 pbentes:0.8.2 pbentes:0.8.1 pbentes:0.8 pbentes:0.7 pbentes:0.6 pbentes:0.5 pbentes:0.4.1 pbentes:0.4 pbentes:0.3 pbentes:0.2.1 pbentes:0.2 pbentes:0.1.1 pbentes:0.1

141 Commits
0.8.1 ... d0c62ba1db

Author SHA1 Message Date
pbentes
d0c62ba1db Applied anysize patch 2025-05-05 12:53:07 +01:00
Johannes Altmanninger
98610fcd37 Do not interpret CSI ? u as DECRC 
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.
 2025-01-30 17:50:37 +01:00
Markus Rinne
6009e6e25b Clear screen: Fix edge case 
With sequence \e[1J, if cursor is on second line, clear the first line.
 2024-12-06 13:42:50 +01:00
Lucas de Sena
a0274bc20e fix BadMatch error when embedding on some windows 
When embedded, st fails with BadMatch error if the embedder's window has
non-default colormap/depth/visual.  This commit fixes that by creating
st's window inside root and then reparent it into embedder.

The reference window for dc.gc is also changed to match root's visuals.

A similar commit had been made for dmenu[1].
See this issue[2] on github for context.

[1]: https://git.suckless.org/dmenu/commit/0fe460dbd469a1d5b6a7140d0e1801935e4a923b.html
[2]: https://github.com/phillbush/xfiles/issues/47
 2024-08-09 13:34:56 +02:00
Hiltjo Posthuma
5dbcca4926 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).
 2024-05-01 20:45:39 +02:00
Hiltjo Posthuma
d63b9eb902 bump version to 0.9.2 2024-04-05 12:18:41 +02:00
DOGMAN
497a756382 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.
 2024-04-03 19:49:05 +02:00
Hiltjo Posthuma
8c68ec5241 Revert "Fix cursor move with wide glyphs" 
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 <tim@timculverhouse.com>:

	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"
 2024-03-30 12:37:06 +01:00
Hiltjo Posthuma
5ce9716281 bump version to 0.9.1 2024-03-19 12:13:42 +01:00
Hiltjo Posthuma
f20e169a20 config.def.h: improve latency for the default configuration 2024-03-17 14:42:44 +01:00
Tommi Hirvola
95f22c5305 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.
 2024-03-04 23:50:58 +01:00
Quentin Rameau
7473a8d1a5 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.
 2024-02-25 11:56:43 +01:00
Tim Culverhouse
a3f7420310 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.
 2024-02-18 16:14:26 +01:00
Peter Hofmann
9846a56bd7 Add terminfo entries for bracketed paste mode 
Helps Vim (and hopefully others) to discover that this feature exists
without further user configuration.
 2023-10-07 12:16:59 +02:00
Peter Hofmann
559fdc2786 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).
 2023-10-07 12:16:59 +02:00
Peter Hofmann
8abe4bcb41 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.
 2023-10-07 12:16:59 +02:00
Peter Hofmann
2fc7e532b2 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".
 2023-10-07 12:16:59 +02:00
Peter Hofmann
a6bbc0c96b 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\\'
 2023-10-07 12:16:59 +02:00
Hiltjo Posthuma
eb3b894f40 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.
 2023-09-22 15:16:52 +02:00
Shi Tian
3a6d6d7401 Fix for wide character being incorrectly cleared on MODE_INSERT 
Under insert mode, when inserting a normal character in front of
a wide character, the affected region is shifted to the right by
one cell. However, the empty cell is reset as if being a part of a
wide character, causing the following cell being mishandled as a
dummy cell.
To reproduce the bug:
	printf '\033[4h' # set MODE_INSERT
	printf 妳好
	printf '\033[4D'
	printf 'x'
	printf '\033[4l\n'
 2023-06-25 11:59:06 +02:00
Hiltjo Posthuma
211964d56e ignore C1 control characters in UTF-8 mode 
Ignore processing and printing C1 control characters in UTF-8 mode.
These are in the range: 0x80 - 0x9f.

By default in st the mode is set to UTF-8.

This matches more the behaviour of xterm with the options -u8 or +u8 also.
Also see the xterm resource "allowC1Printable".

Let me know if this breaks something, in most cases I don't think so.

As usual a very good reference is:
https://invisible-island.net/xterm/ctlseqs/ctlseqs.html
 2023-02-07 20:00:59 +01:00
Adam Price
f17abd25b3 Add support for DSR response "OK" escape sequence 
"VT100 defines an escape sequence [1] called Device Status Report (DSR). When
the DSR sequence received is `csi 5n`, an "OK" response `csi 0n` is returned.
This patch adds that "OK" response.

I encountered this missing sequence when I noticed that fzf [2] would clobber
my prompt whenever completing a find.

To test that ST doesn't currently respond to `csi 5n`, use fzf's shell
extension in ST's repo to complete the path for a file.

    my-fancy-prompt $ vim **<tab>
    <select a file>
    st.c

Select a file with <enter>, and notice that fzf clobbers some or all of your
prompt.

After applying this patch, do the same test as above and notice that fzf has no
longer clobbered your prompt by placing the file name in the correct position
in your command.

    my-fancy-prompt $ vim **<tab>
    <select a file>
    my-fancy prompt $ vim st.c

Thank you for considering my first patch submission.

[1] https://www.xfree86.org/current/ctlseqs.html#VT100%20Mode
[2] https://github.com/junegunn/fzf
"

Patch slightly adapted with input from the mailinglist,
 2023-02-07 19:57:34 +01:00
Hiltjo Posthuma
7e8050cc62 Fixed OSC color reset without parameter->resets all colors 
Adapted from (garbled) patch by wim <wim@thinkerwim.org>

Additional notes: it should reset all the colors using xloadcols().
To reproduce: set a different (theme) color using some escape code, then reset
it:

	printf '\x1b]104\x07'
 2023-02-05 13:29:35 +01:00
Hiltjo Posthuma
e5e959835b fix buffer overflow when handling long composed input 
To reproduce the issue:

"
If you already have the multi-key enabled on your system, then add this line
to your ~/.XCompose file:

[...]
<question> <T> <E> <S> <T> <question> :
"1234567890123456789012345678901234567890123456789012345678901234567890"
"

Reported by and an initial patch by Andy Gozas <andy@gozas.me>, thanks!

Adapted the patch, for now st (like dmenu) handles a fixed amount of composed
characters, or otherwise ignores it. This is done for simplicity sake.
 2022-10-25 17:11:11 +02:00
Hiltjo Posthuma
68d1ad9b54 bump version to 0.9 2022-10-04 19:40:30 +02:00
Hiltjo Posthuma
0008519903 FAQ: document the color emojis crash issue which affected some systems is fixed 
It is fixed in libXft 2.3.6:

https://gitlab.freedesktop.org/xorg/lib/libxft/-/blob/libXft-2.3.5/NEWS
 2022-09-16 23:07:09 +02:00
Tom Schwindl
72fd32736a st: use `void' to indicate an empty parameter list 2022-08-18 17:14:10 +02:00
Hiltjo Posthuma
baa9357e96 Makefile: add manual path for OpenBSD 2022-05-01 18:38:40 +02:00
NRK
8629d9a1da 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.
 2022-04-19 11:43:37 +02:00
NRK
ef0551932f base64_digits: reduce scope, implicit zero, +1 size 
the array is not accessed outside of base64dec() so it makes sense to
limit it's scope to the related function. the static-storage duration of
the array is kept intact.

this also removes unnecessary explicit zeroing from the start and end of
the array. anything that wasn't explicitly zero-ed will now be
implicitly zero-ed instead.

the validity of the new array can be easily confirmed via running this
trivial loop:

	for (int i = 0; i < 255; ++i)
		assert(base64_digits[i] == base64_digits_old[i]);

lastly, as pointed out by Roberto, the array needs to have 256 elements
in order to able access it as any unsigned char as an index; the
previous array had 255.

however, this array will only be accessed at indexes which are
isprint() || '=' (see `base64dec_getc()`), so reducing the size of the
array to the highest printable ascii char (127 AFAIK) + 1 might also be
a valid strategy.
 2022-03-18 12:20:27 +01:00
NRK
af3bb68add avoid potential UB when using isprint() 
all the ctype.h functions' argument must be representable as an unsigned
char or as EOF, otherwise the behavior is undefined.
 2022-03-18 12:11:27 +01:00
Zacchary Dempsey-Plante
2aefa348ba make underlines and strikethroughs respect chscale 2022-03-13 10:45:34 +01:00
Santtu Lakkala
e823e2308f Delay redrawals on palette changes 
Build on auto-sync and only mark window dirty on palette changes and let
the event handler do the actual draw.
 2022-02-18 13:03:37 +01:00
Hiltjo Posthuma
2c5edf28ec X10/SGR mouse: use alt as meta key instead of super/windows key 2022-01-12 09:44:27 +01:00
Hiltjo Posthuma
b1d97fec47 LICENSE: bump year 2022-01-10 17:11:17 +01:00
robert
ea7cd7b62f Fix mousereport 
This patch replaces the previous one I sent.

The following changes are made in this patch:
 - Fix tracking of pressed buttons. Previously, pressing two buttons and
   then releasing one would make st think no buttons are pressed, which
   in particular broke MODE_MOUSEMOTION.
 - Always send the lowest-numbered pressed button on motion events; when
   no button is pressed for a motion event in MODE_MOUSEMANY, then send
   a release. This matches the behaviour of xterm. (Previously, st sent
   the most recently pressed button in the motion report.)
 - Remove UB (?) access to potentially inactive struct member
   e->xbutton.button of XEvent union.
 - Fix (unlikely) possibility of overflow for large button numbers.

The one discrepancy I found between st and xterm is that xterm sometimes
encodes buttons with large numbers (>5) strangely. E.g., xterm reports
presses of buttons 8 and 9 as releases, whereas st properly (?) encodes
them as presses.
 2022-01-10 17:04:01 +01:00
Hiltjo Posthuma
7fb0c0cc68 bump version to 0.8.5 2022-01-07 12:39:57 +01:00
Hiltjo Posthuma
7e1c68f25d FAQ: fix a typo, patch -> path 2022-01-02 12:16:57 +01:00
jamin
65f1dc4283 Fix overtyping wide characters. 
Overtyping the first half of a wide character with the
second half of a wide character results in display garbage.
This is because the trailing dummy is not cleaned up.

i.e.  ATTR_WIDE, ATTR_WDUMMY, ATTR_WDUMMY

Here is a short script for demonstrating the behavior:

	#!/bin/sh
	alias printf=/usr/bin/printf
	printf こんにちは！; sleep 2
	printf '\x1b[5D'; sleep 2
	printf へ; sleep 2
	printf ' '; sleep 2
	echo
 2021-12-30 18:37:17 +01:00
Jochen Sprickerhof
a0467c802d Fix null pointer access in strhandle 
According to the spec the argument is optional for 104, so p can be
NULL as can be tested with printf '\x1b]104\x07'. This is a regression
of 8e31030.
 2021-12-27 13:07:11 +01:00
Hiltjo Posthuma
273db5ceaf follow-up fix for OSC color sequences, return 
Otherwise the message "erresc: unknown str" is printed.
 2021-12-26 19:00:41 +01:00
Raheman Vaiya
8e31030390 Add support for OSC color sequences 2021-12-26 18:57:44 +01:00
Hiltjo Posthuma
2f6e597ed8 fix possible rare crash when Xutf8TextPropertyToTextList fails 
from the XmbTextListToTextProperty(3) man page:

"If insufficient memory is available for the new value string, the functions
return XNoMemory.  If the current locale is not supported, the functions return
XLocaleNotSupported.  In both of these error cases, the functions do not set
text_prop_return."

Reported by Steffen Nurpmeso <steffen@sdaoden.eu>, thanks!
 2021-08-24 13:44:35 +02:00
Koichi Murase
1d3142da96 fix a problem that the standard streams are unexpectedly closed 
In the current implementation, the slave PTY (assigned to the variable
`s') is always closed after duplicating it to file descriptors of
standard streams (0, 1, and 2).  However, when the allocated slave PTY
`s' is already one of 0, 1, or 2, this causes unexpected closing of a
standard stream.  The same problem occurs when the file descriptor of
the master PTY (the variable `m') is one of 0, 1, or 2.

In this patch, the original master PTY (m) is closed before it would
be overwritten by duplicated slave PTYs.  The original slave PTY (s)
is closed only when it is not one of the stanrad streams.
 2021-08-24 13:30:11 +02:00
Petar Kapriš
2ec571a30c Add 14th bit to XK_SWITCH_MOD bitmask 
The bits of uint signal in an XKeyEvent which concern the key group (keyboard
layout) are bits 13 and 14, as documented here:
https://www.x.org/releases/X11R7.7/doc/libX11/XKB/xkblib.html#Groups_and_Shift_Levels
In the older version, only bit 13 was marked as part of XK_SWITCH_MOD, this
causes issues for users who have more than two keymaps. the 14th bit is not
in ignoremod, key sequences are not caught by match(), if they switch to a third
or fourth keyboard.
 2021-07-18 11:44:56 +02:00
Markus F.X.J. Oberhumer
4536f46cff Mild const-correctness improvements. 
Only touch a few things, the main focus is to
improve code readability.
 2021-05-06 18:21:10 +02:00
Hiltjo Posthuma
9e68fdbcdb fix: correctly encode mouse buttons >= 8 in X10 and SGR mode 
These are typically mapped in X11 to the side-buttons (backward/forwards) on
the mouse. A comparison of the button numbers in SGR mode (first field):

st old:
0 1 2 64 65 66 67 68 69 70

st new (it is the same as xterm now):
0 1 2 64 65 66 67 128 129 130

A script to test and reproduce it, first argument is "h" (on) or "l" (off):

	#!/bin/sh
	printf '\x1b[?1000%s\x1b[?1006%s' "$1" "$1"

	for n in 1 2 3 4 5 6 7 8 9 10; do
		printf 'button %d\n' "$n"
		xdotool click "$n"
		printf '\n\n'
	done
 2021-03-19 11:58:59 +01:00
Hiltjo Posthuma
4ef0cbd8b9 remove unused variable from previous patch 2020-10-18 11:18:03 +02:00
John Collis
28b4c822c5 ST: Add WM_ICON_NAME property support 
Also added _NET_WM_ICON_NAME.
 2020-10-18 11:17:11 +02:00
Hiltjo Posthuma
fa253f077f bump version to 0.8.4 2020-06-19 11:27:17 +02:00
Hiltjo Posthuma
b27a383a3a config.mk: use PKG_CONFIG in commented OpenBSD section 2020-06-17 23:49:40 +02:00
Hiltjo Posthuma
81067c65ea LICENSE: bump years 2020-06-17 23:49:40 +02:00
Hiltjo Posthuma
f74a9df6e1 remove sixel stub code 
Remove stub code that was used for an experiment of adding sixel code to st
from the commit f7398434.
 2020-06-17 23:49:22 +02:00
Hiltjo Posthuma
818ec746f4 fix unicode glitch in DCS strings, patch by Tim Allen 
Reported on the mailinglist:

"
I discovered recently that if an application running inside st tries to
send a DCS string, subsequent Unicode characters get messed up. For
example, consider the following test-case:

    printf '\303\277\033P\033\\\303\277'

...where:

  - \303\277 is the UTF-8 encoding of U+00FF LATIN SMALL LETTER Y WITH
    DIAERESIS (ÿ).
  - \033P is ESC P, the token that begins a DCS string.
  - \033\\ is ESC \, a token that ends a DCS string.
  - \303\277 is the same ÿ character again.

If I run the above command in a VTE-based terminal, or xterm, or
QTerminal, or pterm (PuTTY), I get the output:

    ÿÿ

...which is to say, the empty DCS string is ignored. However, if I run
that command inside st (as of commit 9ba7ecf), I get:

    ÿÿ

...where those last two characters are \303\277 interpreted as ISO8859-1
characters, instead of UTF-8.

I spent some time tracing through the state machines in st.c, and so far
as I can tell, this is how it works currently:

  - ESC P sets the "ESC_DCS" and "ESC_STR" flags, indicating that
    incoming bytes should be collected into the strescseq buffer, rather
    than being interpreted.
  - ESC \ sets the "ESC_STR_END" flag (when ESC is received), and then
    calls strhandle() (when \ is received) to interpret the collected
    bytes.
  - If the collected bytes begin with 'P' (i.e. if this was a DCS
    string) strhandle() sets the "ESC_DCS" flag again, confusing the
    state machine.

If my understanding is correct, fixing the problem should be as easy as
removing the line that sets ESC_DCS from strhandle():

diff --git a/st.c b/st.c
index ef8abd5..b5b805a 100644
--- a/st.c
+++ b/st.c
@@ -1897,7 +1897,6 @@ strhandle(void)
		xsettitle(strescseq.args[0]);
		return;
	case 'P': /* DCS -- Device Control String */
-		term.mode |= ESC_DCS;
	case '_': /* APC -- Application Program Command */
	case '^': /* PM -- Privacy Message */
		return;

I've tried the above patch and it fixes my problem, but I don't know if
it introduces any others.
"
 2020-06-17 21:35:39 +02:00
Hiltjo Posthuma
9ba7ecf7b1 FAQ: fix single-buffer patch 
rebase against master
 2020-06-01 14:09:46 +02:00
Hiltjo Posthuma
a2a704492b config.def.h: add an option allowwindowops, by default off (secure) 
Similar to the xterm AllowWindowOps option, this is an option to allow or
disallow certain (non-interactive) operations that can be insecure or
exploited.

NOTE: xsettitle() is not guarded by this because st does not support printing
the window title. Else this could be exploitable (arbitrary code execution).
Similar problems have been found in the past in other terminal emulators.

The sequence for base64-encoded clipboard copy is now guarded because it allows
a sequence written to the terminal to manipulate the clipboard of the running
user non-interactively, for example:

printf '\x1b]52;0;ZWNobyBoaQ0=\a'
 2020-05-30 22:06:15 +02:00
Hiltjo Posthuma
0f8b40652b FAQ: add some details about the w3m img hack 
... and an example patch to switch from double-buffering to a single buffer.
 2020-05-30 22:05:17 +02:00
Hiltjo Posthuma
e6e2c6199f tiny style fix 2020-05-30 22:05:17 +02:00
Hiltjo Posthuma
94b8ec0021 Partially add back in "support REP (repeat) escape sequence" 
Add the functionality back in for xterm compatibility, but do not expose the
capability in st.info (yet).

Some notes:

It was reverted because it caused some issues with ncurses in some
configurations, namely when using BSD padding (--enable-bsdpad, BSD_TPUTS) in
ncurses it caused issues with repeating digits.

A fix has been upstreamed in ncurses since snapshot 20200523. The fix is also
backported to OpenBSD -current.
 2020-05-30 22:04:28 +02:00
Steve Ward
dec6b530a4 Call xsetcursor to set win.cursor in main 
In xsetcursor, remove "DEFAULT(cursor, 1)" because 0 is a valid value.
Increase max allowed value of cursor from 6 to 7 (st extension).
 2020-05-24 13:45:42 +02:00
Hiltjo Posthuma
475a0a36cb Revert "support REP (repeat) escape sequence" 
This reverts commit e8392b282c2eaa28725241a9612804fb55113da4.

There is currently a bug in older ncurses versions (like on OpenBSD) where a
fix for a bug with REP is not backported yet. Most likely in tty/tty_update.c:

Noticed while using lynx (which uses ncurses/curses).
To reproduce using lynx: echo "Z0000000" | lynx -stdin

or using the program:

int
main(void)
{
	WINDOW *win;
	win = initscr();

	printw("Z0000000");

	refresh();

	sleep(5);

	return 0;
}

This prints "ZZZZZZZ" (incorrectly).
 2020-05-16 21:06:13 +02:00
Avi Halachmi (:avih)
e8392b282c 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.
 2020-05-16 14:08:10 +02:00
Roberto E. Vargas
f8afebdfa0 Add rin terminfo capability 
Tianlin Qu discovered that st is missing rin (scroll back #1 lines).
 2020-05-16 14:07:31 +02:00
k0ga
bda9c9ffa6 Make shift+wheel behaves as shift+Prev/Next 
St uses a very good hack where mouse wheel genereates ^Y and ^E,
that are the same keys that less and vi uses for backward and
fordward scrolling. Scroll, as many terminal emulators, use
shift+Prev/Next for scrolling, but it is also using ^E and ^Y
for scroling, characters that are reserved in the POSIX shell
in emacs mode for end of line and yanking, making scroll unsable
in st.

This patch adds a new hack, making shift+wheel returning the
same sequences than shift+Prev/Next, meaning that scroll or
any other similar program will not be able to differentiate
between them.
 2020-05-16 12:37:14 +02:00
Jakub Leszczak
045a0fab4f Fix selection: selscroll 2020-05-12 15:38:17 +02:00
Jakub Leszczak
9c30066e73 Fix selection: ignore ATTR_WRAP when rectangular selection in getsel 2020-05-12 15:38:02 +02:00
Jakub Leszczak
8304d4f059 Fix selection: selclear in tputc 2020-05-12 15:37:59 +02:00
Hiltjo Posthuma
914fb825df code-style: add fallthrough comment 
Patch by Steve Ward, thanks.
 2020-05-09 14:43:31 +02:00
Hiltjo Posthuma
cde480c693 optimize column width calculation and utf-8 encode for ASCII 
In particular on OpenBSD and on glibc wcwidth() is quite expensive.
On musl there is little difference.
 2020-05-09 14:11:25 +02:00
Hiltjo Posthuma
8211e36d28 fix for incorrect (partial) written sequences when libc wcwidth() == -1 
Fix an issue with incorrect (partial) written sequences when libc wcwidth() ==
-1. The sequence is updated to on wcwidth(u) == -1:

	c = "\357\277\275"

but len isn't.

A way to reproduce in practise:

* st -o dump.txt
* In the terminal: printf '\xcd\xb8'
- This is codepoint 888, on OpenBSD it reports wcwidth() == -1.
- Quit the terminal.
- Look in dump.txt (partial written sequence of "UTF_INVALID").

This was introduced in:

"	commit 11625c7166b7e4dad414606227acec2de1c36464
	Author: czarkoff@gmail.com <czarkoff@gmail.com>
	Date:   Tue Oct 28 12:55:28 2014 +0100

	    Replace character with U+FFFD if wcwidth() is -1

	    Helpful when new Unicode codepoints are not recognized by libc."

Change:

Remove setting the sequence. If this happens to break something, another
solution could be setting len = 3 for the sequence.
 2020-05-09 14:07:52 +02:00
Hiltjo Posthuma
87545c612e tiny code-style and typo-fix in comment 2020-05-09 14:05:04 +02:00
Avi Halachmi (:avih)
1d59091065 auto-sync: draw on idle to avoid flicker/tearing 
st could easily tear/flicker with animation or other unattended
output. This commit eliminates most of the tear/flicker.

Before this commit, the display timing had two "modes":

- Interactively, st was waiting fixed `1000/xfps` ms after forwarding
  the kb/mouse event to the application and before drawing.

- Unattended, and specifically with animations, the draw frequency was
  throttled to `actionfps`. Animation at a higher rate would throttle
  and likely tear, and at lower rates it was tearing big frames
  (specifically, when one `read` didn't get a full "frame").

The interactive behavior was decent, but it was impossible to get good
unattended-draw behavior even with carefully chosen configuration.

This commit changes the behavior such that it draws on idle instead of
using fixed latency/frequency. This means that it tries to draw only
when it's very likely that the application has completed its output
(or after some duration without idle), so it mostly succeeds to avoid
tear, flicker, and partial drawing.

The config values minlatency/maxlatency replace xfps/actionfps and
define the range which the algorithm is allowed to wait from the
initial draw-trigger until the actual draw. The range enables the
flexibility to choose when to draw - when least likely to flicker.

It also unifies the interactive and unattended behavior and config
values, which makes the code simpler as well - without sacrificing
latency during interactive use, because typically interactively idle
arrives very quickly, so the wait is typically minlatency.

While it only slighly improves interactive behavior, for animations
and other unattended-drawing it improves greatly, as it effectively
adapts to any [animation] output rate without tearing, throttling,
redundant drawing, or unnecessary delays (sounds impossible, but it
works).
 2020-05-09 13:53:50 +02:00
Jan Klemkow
d6ea0a1a61 replace exit(3) by _exit(2) in signal handler sigchld() 
exit(3) is not async-signal-safe but, _exit(2) is.
This change prevents st to crash and dump core.
 2020-04-30 01:21:21 +02:00
Hiltjo Posthuma
43a395ae91 bump version to 0.8.3 2020-04-27 13:56:25 +02:00
Ivan Tham
72e3f6c7c0 Update XIM cursor position only if changed 
Updating XIM cursor position is expensive, so only update it when cursor
position changed.
 2020-04-19 19:39:48 +02:00
Hiltjo Posthuma
33a9a45664 just remove the EOF message 2020-04-11 15:45:06 +02:00
Roberto E. Vargas Caballero
771bc401f7 Add st-mono terminfo entry 
This entry is intended for monocolor display and it is very
helpful for color haters.
 2020-04-11 15:23:23 +02:00
Hiltjo Posthuma
d66bd405c0 config.def.h: add a comment for the scroll variable 2020-04-11 15:23:23 +02:00
Hiltjo Posthuma
e997303502 Fix small typos 2020-04-11 15:23:23 +02:00
Quentin Rameau
c1145268f6 Launch scroll program with the default shell 2020-04-11 15:23:23 +02:00
Roberto E. Vargas Caballero
0b73612c0d Update FAQ with the last modifications 2020-04-11 15:23:23 +02:00
Roberto E. Vargas Caballero
019449a7e6 Add terminfo entries for backspace mode 
St used to use backspace as BS until the commit 230d0c8, but due
to general lack of knowledge of lusers, we moved to the most common
configuration in linux to avoid answering the same question 3 times
per month. With the most common configuration we have a backspace
that returns a DEL, and we have a Delete key that doesn't return a
DEL character neither a BS.

When dealing with devices connected using a serial line (or even
with Plan9) it is more common Backspace as BS and Delete as DEL. For
this reason, st is not always the best tool when you talk with a
serial device.

This patch adds new terminfo entries for Backspace as BS and Delete
as DEL. A patch for confg.h is also added, to make easier switch
between both configurations.
 2020-04-11 15:23:23 +02:00
Roberto E. Vargas Caballero
fbae700a3f Fix style issue 2020-04-11 15:23:23 +02:00
Roberto E. Vargas Caballero
e52319cc7d ttyread: test for EOF while reading tty 
When a read operation returns 0 then it means that we arrived to the end of the
file, and new reads will return 0 unless you do some other operation such as
lseek(). This case happens with USB-232 adapters when they are unplugged.
 2020-04-11 15:23:23 +02:00
Roberto E. Vargas Caballero
21e0d6e8b8 Add support for scroll(1) 
Scroll is a program that stores all the lines of its child and be used in st as
a way of implementing scrollback.

This solution is much better than implementing the scrollback in st itself
because having a different program allows to use it in any other program
without doing modifications to those programs.
 2020-04-11 15:23:20 +02:00
Hiltjo Posthuma
5703aa0390 make argv0 not static, fixes a warning with tcc 
Reported by Aajonus, thanks!
 2020-04-10 12:12:43 +02:00
Avi Halachmi (:avih)
28ad288399 mouseshortcuts: fix custom modifier on release 
This line didn't work at mshortcuts at config.h:

  /*  mask       button   function  arg       release */
    { ShiftMask, Button2, selpaste, {.i = 0}, 1 },

and now it does work.

The issue was that XButtonEvent.state is "the logical state ... just prior
to the event", which means that on release the state has the Button2Mask
bit set because button2 was down just before it was released.

The issue didn't manifest with the default shift + middle-click on release
(to override mouse mode) because its specified modifier is XK_ANY_MOD, at
which case match(...) ignores any specific bits and simply returns true.

The issue also doesn't manifest on press, because prior to the event
Button<N> was not down and its mask bit is not set.

Fix by filtering out the mask of the button which we're currently matching.

We could have said "well, that's how button events behave, you should
use ShiftMask|Button2Mask for release", but this both not obvious to
figure out, and specifically here always filtering does not prevent
configuring any useful modifiers combination. So it's a win-win.
 2020-04-02 14:41:03 +02:00
Ivan Tham
51e19ea11d Remove explicit XNFocusWindow 
XCreateIC ICValues default XNFocusWindow to XNClientWindow if not
specified, it can be omitted since it is the same.

From the documentation
https://www.x.org/releases/current/doc/libX11/libX11/libX11.html

> Focus Window
>
> The XNFocusWindow argument specifies the focus window. The primary
> purpose of the XNFocusWindow is to identify the window that will receive
> the key event when input is composed.
>
> When this XIC value is left unspecified, the input method will use the
> client window as the default focus window.
 2020-02-19 00:46:20 +01:00
Quentin Rameau
26cdfebf31 x: fix XIM handling 
Do not try to set specific IM method, let the user specify it with
XMODIFIERS.

If the requested method is not available or opening fails, fallback to
the default input handler and register a handler on the new IM server
availability signal.

Do the same when the input server is closed and (re)started.
 2020-02-02 22:56:51 +01:00
Quentin Rameau
cd785755f2 x: check we still have an XIC context before accessing it 2020-02-02 22:56:51 +01:00
Quentin Rameau
2cb539142b x: do not instantiate a new nested list on each cursor move 2020-02-02 22:56:51 +01:00
Quentin Rameau
99de333951 x: move IME variables into XWindow ime embedded struct 2020-02-02 22:56:51 +01:00
Ivan Tham
895e5b50a8 Increase XmbLookupString buffer 
Current buffer is too short to input medium to long sentences from IME.
Input with longer text will show the wrong input, taking 64 instead of
32 bytes should be enough for most of the cases. Broken cases before,

Chinese (taken from song 也可以)
可不可以轻轻的松开自己

Japanese (taken from bootleggers rom quote)
あなたは家のように感じる
 2020-01-18 14:21:50 +01:00
Hiltjo Posthuma
384830110b update FAQ 
- add common question about the w3m image drawing hack.
- remove some bad advise about $TERM.
- change some links to https.
 2019-11-17 20:04:52 +01:00
Avi Halachmi (:avih)
2e54a21b5a OSC 52 - copy to clipboard: don't limit to 382 bytes 
Strings which an application sends to the terminal in OSC, DCS, etc
are typically small (title, colors, etc) but one exception is OSC 52
which copies text to the clipboard, and is used for instance by tmux.

Previously st cropped these strings at 512 bytes, which for OSC 52
limited the copied text to 382 bytes (remaining buffer space before
base64). This made it less useful than it can be.

Now it's a dynamic growing buffer. It remains allocated after use,
resets to 512 when a new string starts, or leaked on exit.

Resetting/deallocating the buffer right after use (at strhandle) is
possible with some more code, however, it doesn't always end up used,
and to cover those cases too will require even more code, so resetting
only on new string is good enough for now.
 2019-11-10 22:45:54 +01:00
Hiltjo Posthuma
289c52b7aa CSIEscape, STREscape: use size_t for buffer length 2019-11-10 22:45:54 +01:00
Avi Halachmi (:avih)
7ceb3d1f72 STREscape: don't trim prematurely 
STRescape holds strings in escape sequences such as OSC and DCS, and
its buffer is 512 bytes.

If the input is too big then trailing chars are ignored, but the test
was off-by-1 such that it took 510 chars instead of 511 (before a
terminating NULL is added).

Now the full size can be utilized.
 2019-11-10 22:45:54 +01:00
Avi Halachmi (:avih)
ea4d933ed9 base64dec: don't read out of bounds 
Previously, base64dec checked terminating input '\0' every 4 calls to
base64dec_getc, where the latter progressed one or more chars on each
call, and could read past '\0' in the way it was used.

The input to base64dec currently comes only from OSC 52 escape seq
(copy to clipboard), and reading past '\0' or even past the buffer
boundary was easy to trigger.

Also, even if we could trust external input to be valid base64, there
are different base64 standards, and not all of them require padding
to 4 bytes blocks (using trailing '=' chars).

It didn't affect short OSC 52 strings because the buffer is initialized
to 0's, so typically it did stop within the buffer, but if the string
was trimmed to fit (the buffer is 512 bytes) then it did also read past
the end of the buffer, and the decoded suffix ended up arbitrary.

This patch makes base64dec_getc not progress past '\0', and instead
produce fake trailing padding of '='.

Additionally, at base64dec, if padding is detected at the first or
second byte of a quartet, then we identify it as invalid and abort
(a valid quartet has at least two leading non-padding bytes).
 2019-11-10 22:45:54 +01:00
Sebastian J. Bronner
83866428de Fix tmux terminfo extensions Se and Ss 
The tmux terminfo extensions Ss and Se are currently specified as
booleans in `st.info`. They should be strings. See
eeedb43ae8/tty-term.c
lines 254 and 265.

I have used the values from
https://invisible-island.net/ncurses/terminfo.src.html#toc-_S_I_M_P_L_E_T_E_R_M
for this patch.
 2019-11-05 19:51:35 +01:00
Ingo Lohmar
1f09f0b0bb apply hints before initial mapping (ICCCM) 
For WM_CLASS this is mentioned in the ICCCM docs
https://tronche.com/gui/x/icccm/sec-4.html#s-4.1.2.5
(third sentence).

When changing the WM_CLASS from the command line, this is necessary for
window managers to pick it up before applying class-based rules.
 2019-10-26 11:47:24 +02:00
Avi Halachmi (:avih)
a2c479c4c8 mouse shortcuts: allow using forcemousemod (e.g. shift) 
The recent mouse shurtcuts commits allow customization, but ignore
forcemousemod mask (default: shift) as a modifier, for no good reason
other than following the behavior of the KB shortcuts.

Allow using forcemousemod too, which now can be used to invoke
different shortcuts, though the automatic effect of forcemousemod will
be lost for buttons which use mask with forcemousemod.

E.g. the default is:

static uint forcemousemod = ShiftMask;
...
{ XK_ANY_MOD,           Button4, ttysend,        {.s = "\031"} },
...

where ttysend will be invoked for button4 with any mod when not in mouse
mode, and with shift when in mouse mode.

Now it's possible to do this:
{ ShiftMask,            Button4, ttysend,        {.s = "foo"} },
{ XK_ANY_MOD,           Button4, ttysend,        {.s = "\031"} },

Which will invoke ttysend("foo") while shift is held and ttysend("\031")
otherwise. Shift still overrides mouse mode, but will now send "foo".

Previously with this setup the second binding was always invoked
because the forceousemod mask was always removed from the event.

Buttons which don't use forcemousemod behave the same as before.

This is useful e.g. for the scrollback mouse patch, which wants to
configure shift+wheel for scrollback, while keeping the normal behavior
without shift.
 2019-10-24 15:34:25 +02:00
Avi Halachmi (:avih)
d2b75db8d7 mouse shortcuts: don't hardcode selpaste 
Because selpaste is activated on release, a release flag was added to
mouse shortcuts which controls whether activation is on press/release,
and selpaste binding to button2 was moved to config.h .

button1 remains the only hardcoded mouse button - for selection + copy.
 2019-10-13 21:46:31 +02:00
Avi Halachmi (:avih)
b6d280de6d mouse shortcuts: allow override for all shortcuts 
Allow forceselmod to override all mouse shortcuts rather than only
selection, and rename it to forcemousemod as it's now more appropriate.

This will affect mouse shortcuts which use mask other than XK_ANY_MOD.

This does not affect the default behavior because the default mouse
shortcuts (wheel) use XK_ANY_MOD, where forceselmod already activated
the override also before this change.

Previously, if a mouse shortcut was configured with a specific mod and
forceselmod was held, then the shortcut did not execute unless the
configured mod included forceselmod.
 2019-10-13 21:46:31 +02:00
Avi Halachmi (:avih)
ba7f4d69af mouse shortcuts: allow same functions as kb shortcuts 
Previously mouse shortcuts supported only ttywrite.

This required adding an "Arg" function ttysend - which does what the
original mouse shortcuts did.
 2019-10-13 21:46:31 +02:00
Hiltjo Posthuma
2b8333f553 config.def.h: remove crlf value section 
this is not used anymore.

patch sent as an ed script using RFC2549 by k0ga.
 2019-08-26 17:58:47 +02:00
Hiltjo Posthuma
caa1d8fbea FAQ: add entry about color emoji Xft bug 
This has been asked many times on IRC and the mailinglist. Make it easier to
find information about this particular Xft issue by adding it to the FAQ.
 2019-05-17 13:00:10 +02:00
Avi Halachmi (:avih)
f1546cf9c1 selection: fix view to match actual selection on first cell 2019-04-14 13:50:20 +02:00
Hiltjo Posthuma
21367a040f revert part of commit add0211522737b79dad990ccd65c8af63b5cc1dd 
"use iswspace()/iswpunct() to find word delimiters

    this inverts the configuration logic: you no longer provide a list of
    delimiters -- all space and punctuation characters are considered
    delimiters, unless listed in extrawordchars."

Feedback from IRC and personal preference.
 2019-03-15 20:40:16 +01:00
Hiltjo Posthuma
b650256044 dont print color warning on color reset OSC 104 without parameter 
also print explicitly "(null)" when printf "%s" p=NULL.

noticed when exiting mutt: printf '\x1b]104\x07'
 2019-03-15 14:47:08 +01:00
Hiltjo Posthuma
9acec468fb minor code-style, initialize var at the top of function 2019-03-15 14:42:50 +01:00
Hiltjo Posthuma
927621f6da config.def.h: tweak extra worddelimiters 
This changes the selection more like xterm.
To test try: "find /" and select a path.
 2019-03-15 12:31:54 +01:00
Lauri Tirkkonen
add0211522 use iswspace()/iswpunct() to find word delimiters 
this inverts the configuration logic: you no longer provide a list of
delimiters -- all space and punctuation characters are considered
delimiters, unless listed in extrawordchars.
 2019-03-15 12:25:13 +01:00
Lauri Tirkkonen
d5efd256aa replace utf8strchr with wcschr 2019-03-15 12:24:13 +01:00
Lauri Tirkkonen
75b4ba4b4b be silent about explicitly unhandled mouse modes 2019-03-13 17:51:58 +01:00
Hiltjo Posthuma
ed68fe7dce simplify (greedy) font caching allocating a bit 
POSIX says:
"If ptr is a null pointer, realloc() shall be equivalent to malloc() for the
 specified size."
 2019-03-03 11:29:43 +01:00
Hiltjo Posthuma
4e0135afec style: remove double empty newlines 2019-03-03 11:23:54 +01:00
magras
a8cb8e9454 fix use after free in font caching algorithm 
Current font caching algorithm contains a use after free error. A font
removed from `frc` might be still listed in `wx.specbuf`. It will lead
to a crash inside `XftDrawGlyphFontSpec()`.

Steps to reproduce:
$ st -f 'Misc Tamsyn:scalable=false'
$ curl https://www.cl.cam.ac.uk/~mgk25/ucs/examples/UTF-8-demo.txt

Of course, result depends on fonts installed on a system and fontconfig.
In my case, I'm getting consistent segfaults with different fonts.

I replaced a fixed array with a simple unbounded buffer with a constant
growth rate. Cache starts with a capacity of 0, gets increments by 16,
and never shrinks. On my machine after `cat UTF-8-demo.txt` buffer
reaches a capacity of 192. During casual use capacity stays at 0.
 2019-03-03 11:18:31 +01:00
Ivan Tham
e85b6b6466 better Input Method Editor (IME) support 
Features:

- Allow input methods swap with hotkey (E.g. left ctrl + left shift).
- Over-the-spot pre-editing style, pre-edit data placed over insertion point.
- Restart IME without segmentation fault.

TODO:

- Automatically pickup IME if st started before IME
 2019-02-12 18:45:15 +01:00
Hiltjo Posthuma
75f92eb348 bump version to 0.8.2 2019-02-09 12:48:39 +01:00
Hiltjo Posthuma
3be4cf11d7 config: add Shift+Insert as selpaste() again 
This was changed before in:
commit 20f713548de451b67db3306cf8cf7b2f38fee05c on Wed Jan 25 19:17:38 2017
 2019-01-10 18:16:17 +01:00
Paride Legovini
16d98738e7 Let the user specify CPPFLAGS 
This complements the work done in d4928ed, allowing the user to specify
the preprocessor flags with the CPPFLAGS environment variable. This is
useful for example to specify preprocessor macros with -D.

CFLAGS could be used instead, but CPPFLAGS is more correct and is expected
to be honored in some cases. For example, the helper scripts to build
Debian packages make use of CPPFLAGS, but the variable is currently
being ignored unless manually appended to CFLAGS.
 2019-01-10 18:13:13 +01:00
Paride Legovini
e23acb9188 Set the path of pkg-config in a variable instead of hardcoding it 
In this way the path of pkg-config can be overridden from the command
line. This is useful for example when cross-compiling.
 2019-01-04 16:00:54 +01:00
Hiltjo Posthuma
7e19e11676 Makefile: fix dependencies on config.h 
patch by Younes Khoudli (changed slightly). Thanks
 2019-01-04 12:33:01 +01:00
Lauri Tirkkonen
096b125db7 output child WEXITSTATUS/WTERMSIG on abnormal termination 2018-12-11 18:36:02 +01:00
Hiltjo Posthuma
d7bf023b2f fix memory leak in xloadcols() 
reported by Avi Halachmi (:avih)" <avihpit@yahoo.com>

patch slightly changed by me.
 2018-11-04 14:35:07 +01:00
Hiltjo Posthuma
b4d68d4daa st: small typofix in comment 2018-11-04 14:30:56 +01:00
Hiltjo Posthuma
30ec9a3dc3 small code-style fix 2018-09-11 19:06:35 +02:00
Quentin Rameau
67d0cb65d0 Remove the ISO 14755 feature 
And move it to the patches section.
Keeping it would force to add an exec pledge on OpenBSD, and some
people think it's bloated, so bye!
 2018-09-11 19:05:55 +02:00
Hiltjo Posthuma
4f4bccd162 Revert "Simplify cursor color handling" 
This reverts commit 1911c9274d9b03f3d7999c6ce26e2d5169642d26.
 2018-07-17 20:01:58 +02:00
Hiltjo Posthuma
8ed7a4b3b7 Revert "Make cursor follow text color" 
This reverts commit b51bcd5553af3db394014efbd78acf7828fa48ff.
 2018-07-17 20:01:57 +02:00
Hiltjo Posthuma
732be223ee Revert "Fix crash when cursor color is truecolor" 
This reverts commit 5535c1f04c665c05faff2a65d5558246b7748d49.
 2018-07-17 20:01:54 +02:00
Jules Maselbas
5535c1f04c Fix crash when cursor color is truecolor 
Reported-by: Ivan Tham <pickfire@riseup.net>
 2018-07-15 18:16:52 +02:00
Jules Maselbas
b51bcd5553 Make cursor follow text color 2018-07-14 12:49:37 +02:00
Jules Maselbas
1911c9274d Simplify cursor color handling 2018-07-14 12:49:35 +02:00
Jules Maselbas
29f341da7c Fix crash on resize 
Prevent to realloc xw.specbuc with a negative number of col.
Add proper hints for the minimal size, for one character.
 2018-06-30 20:51:46 +02:00
Hiltjo Posthuma
dc3b5babf1 config.mk: remove extra newline before EOF 2018-06-02 17:11:14 +02:00
Hiltjo Posthuma
235a783e03 code-style for pledge(2) 
feedback from Klemens, thanks
 2018-05-25 13:04:09 +02:00
Hiltjo Posthuma
30ce2cc002 Pledge on OpenBSD 2018-05-25 11:59:28 +02:00
Hiltjo Posthuma
041912a791 error message style and use strerror in a few places 2018-03-29 18:30:05 +02:00
Hiltjo Posthuma
bd3f7fd842 st -v: remove years and copyright text 2018-03-29 18:18:30 +02:00
Daniel Tameling
74cff67bd7 set sel.alt in selstart instead of selextend 2018-03-29 18:15:29 +02:00
12 changed files with 995 additions and 483 deletions
Expand all files Collapse all files

108
FAQ
View File

@ -1,6 +1,7 @@
## Why does st not handle utmp entries?
Use the excellent tool of [utmp](http://git.suckless.org/utmp/) for this task.
Use the excellent tool of [utmp](https://git.suckless.org/utmp/) for this task.
## Some _random program_ complains that st is unknown/not recognised/unsupported/whatever!
@ -8,6 +9,7 @@ It means that st doesn’t have any terminfo entry on your system. Chances are
you did not `make install`. If you just want to test it without installing it,
you can manually run `tic -sx st.info`.
## Nothing works, and nothing is said about an unknown terminal!
* Some programs just assume they’re running in xterm i.e. they don’t rely on
@ -15,19 +17,21 @@ you can manually run `tic -sx st.info`.
* Some programs don’t complain about the lacking st description and default to
another terminal. In that case see the question about terminfo.
## I get some weird glitches/visual bug on _random program_!
Try launching it with a different TERM: $ TERM=xterm myapp. toe(1) will give
you a list of available terminals, but you’ll most likely switch between xterm,
st or st-256color. The default value for TERM can be changed in config.h
(TNAME).
## How do I scroll back up?
Using a terminal multiplexer.
* Using a terminal multiplexer.
* `st -e tmux` using C-b [
* `st -e screen` using C-a ESC
* Using the excellent tool of [scroll](https://git.suckless.org/scroll/).
* Using the scrollback [patch](https://st.suckless.org/patches/scrollback/).
## I would like to have utmp and/or scroll functionality by default
You can add the absolute path of both programs in your config.h file. You only
have to modify the value of utmp and scroll variables.
## Why doesn't the Del key work in some programs?
@ -84,12 +88,14 @@ If you are using zsh, then read the zsh FAQ
Putting these lines into your .zshrc will fix the problems.
## How can I use meta in 8bit mode?
St supports meta in 8bit mode, but the default terminfo entry doesn't
use this capability. If you want it, you have to use the 'st-meta' value
in TERM.
## I cannot compile st in OpenBSD
OpenBSD lacks librt, despite it being mandatory in POSIX
@ -98,13 +104,14 @@ If you want to compile st for OpenBSD you have to remove -lrt from config.mk, an
st will compile without any loss of functionality, because all the functions are
included in libc on this platform.
## The Backspace Case
St is emulating the Linux way of handling backspace being delete and delete being
backspace.
This is an issue that was discussed in suckless mailing list
<http://lists.suckless.org/dev/1404/20697.html>. Here is why some old grumpy
<https://lists.suckless.org/dev/1404/20697.html>. Here is why some old grumpy
terminal users wants its backspace to be how he feels it:
Well, I am going to comment why I want to change the behaviour
@ -159,9 +166,88 @@ terminal users wants its backspace to be how he feels it:
[1] http://www.ibb.net/~anne/keyboard.html
[2] http://www.tldp.org/HOWTO/Keyboard-and-Console-HOWTO-5.html
## But I really want the old grumpy behaviour of my terminal
Apply [1].
[1] http://st.suckless.org/patches/delkey
[1] https://st.suckless.org/patches/delkey
## Why do images not work in st using the w3m image hack?
w3mimg uses a hack that draws an image on top of the terminal emulator Drawable
window. The hack relies on the terminal to use a single buffer to draw its
contents directly.
st uses double-buffered drawing so the image is quickly replaced and may show a
short flicker effect.
Below is a patch example to change st double-buffering to a single Drawable
buffer.
diff --git a/x.c b/x.c
--- a/x.c
+++ b/x.c
@@ -732,10 +732,6 @@ xresize(int col, int row)
win.tw = col * win.cw;
win.th = row * win.ch;
- XFreePixmap(xw.dpy, xw.buf);
- xw.buf = XCreatePixmap(xw.dpy, xw.win, win.w, win.h,
- DefaultDepth(xw.dpy, xw.scr));
- XftDrawChange(xw.draw, xw.buf);
xclear(0, 0, win.w, win.h);
/* resize to new width */
@@ -1148,8 +1144,7 @@ xinit(int cols, int rows)
gcvalues.graphics_exposures = False;
dc.gc = XCreateGC(xw.dpy, parent, GCGraphicsExposures,
&gcvalues);
- xw.buf = XCreatePixmap(xw.dpy, xw.win, win.w, win.h,
- DefaultDepth(xw.dpy, xw.scr));
+ xw.buf = xw.win;
XSetForeground(xw.dpy, dc.gc, dc.col[defaultbg].pixel);
XFillRectangle(xw.dpy, xw.buf, dc.gc, 0, 0, win.w, win.h);
@@ -1632,8 +1627,6 @@ xdrawline(Line line, int x1, int y1, int x2)
void
xfinishdraw(void)
{
- XCopyArea(xw.dpy, xw.buf, xw.win, dc.gc, 0, 0, win.w,
- win.h, 0, 0);
XSetForeground(xw.dpy, dc.gc,
dc.col[IS_SET(MODE_REVERSE)?
defaultfg : defaultbg].pixel);
## BadLength X error in Xft when trying to render emoji
Xft makes st crash when rendering color emojis with the following error:
"X Error of failed request: BadLength (poly request too large or internal Xlib length error)"
Major opcode of failed request: 139 (RENDER)
Minor opcode of failed request: 20 (RenderAddGlyphs)
Serial number of failed request: 1595
Current serial number in output stream: 1818"
This is a known bug in Xft (not st) which happens on some platforms and
combination of particular fonts and fontconfig settings.
See also:
https://gitlab.freedesktop.org/xorg/lib/libxft/issues/6
https://bugs.freedesktop.org/show_bug.cgi?id=107534
https://bugzilla.redhat.com/show_bug.cgi?id=1498269
The solution is to remove color emoji fonts or disable this in the fontconfig
XML configuration. As an ugly workaround (which may work only on newer
fontconfig versions (FC_COLOR)), the following code can be used to mask color
fonts:
FcPatternAddBool(fcpattern, FC_COLOR, FcFalse);
Please don't bother reporting this bug to st, but notify the upstream Xft
developers about fixing this bug.
As of 2022-09-05 this now seems to be finally fixed in libXft 2.3.5:
https://gitlab.freedesktop.org/xorg/lib/libxft/-/blob/libXft-2.3.5/NEWS

2
LICENSE
View File

@ -1,6 +1,6 @@
MIT/X Consortium License
© 2014-2018 Hiltjo Posthuma <hiltjo at codemadness dot org>
© 2014-2022 Hiltjo Posthuma <hiltjo at codemadness dot org>
© 2018 Devin J. Pohly <djpohly at gmail dot com>
© 2014-2017 Quentin Rameau <quinq at fifth dot space>
© 2009-2012 Aurélien APTEL <aurelien dot aptel at gmail dot com>

12
Makefile
View File

@ -7,13 +7,7 @@ include config.mk
SRC = st.c x.c
OBJ = $(SRC:.c=.o)
all: options st
options:
@echo st build options:
@echo "CFLAGS = $(STCFLAGS)"
@echo "LDFLAGS = $(STLDFLAGS)"
@echo "CC = $(CC)"
all: st
config.h:
cp config.def.h config.h
@ -22,7 +16,7 @@ config.h:
$(CC) $(STCFLAGS) -c $<
st.o: config.h st.h win.h
x.o: arg.h st.h win.h
x.o: arg.h config.h st.h win.h
$(OBJ): config.h config.mk
@ -54,4 +48,4 @@ uninstall:
rm -f $(DESTDIR)$(PREFIX)/bin/st
rm -f $(DESTDIR)$(MANPREFIX)/man1/st.1
.PHONY: all options clean dist install uninstall
.PHONY: all clean dist install uninstall

60
config.def.h
View File

@ -11,13 +11,15 @@ static int borderpx = 2;
/*
* What program is execed by st depends of these precedence rules:
* 1: program passed with -e
* 2: utmp option
* 2: scroll and/or utmp
* 3: SHELL environment variable
* 4: value of shell in /etc/passwd
* 5: value of shell in config.h
*/
static char *shell = "/bin/sh";
char *utmp = NULL;
/* scroll program: to enable use a string like "scroll" */
char *scroll = NULL;
char *stty_args = "stty raw pass8 nl -echo -iexten -cstopb 38400";
/* identification sequence returned in DA and DECID */
@ -30,9 +32,9 @@ static float chscale = 1.0;
/*
* word delimiter string
*
* More advanced example: " `'\"()[]{}"
* More advanced example: L" `'\"()[]{}"
*/
char *worddelimiters = " ";
wchar_t *worddelimiters = L" ";
/* selection timeouts (in milliseconds) */
static unsigned int doubleclicktimeout = 300;
@ -41,9 +43,18 @@ static unsigned int tripleclicktimeout = 600;
/* alt screens */
int allowaltscreen = 1;
/* frames per second st should at maximum draw to the screen */
static unsigned int xfps = 120;
static unsigned int actionfps = 30;
/* allow certain non-interactive (insecure) window operations such as:
setting the clipboard text */
int allowwindowops = 0;
/*
* draw latency range in ms - from new content/keypress/etc until drawing.
* within this range, st draws when content stops arriving (idle). mostly it's
* near minlatency, but it waits longer for slow updates to avoid partial draw.
* low minlatency will tear/flicker more, as it can "detect" idle too early.
*/
static double minlatency = 2;
static double maxlatency = 33;
/*
* blinking timeout (set to 0 to disable blinking) for the terminal blinking
@ -109,6 +120,8 @@ static const char *colorname[] = {
/* more colors can be added after 255 to use with DefaultXX */
"#cccccc",
"#555555",
"gray90", /* default foreground colour */
"black", /* default background colour */
};
@ -116,9 +129,9 @@ static const char *colorname[] = {
* Default colors (colorname index)
* foreground, background, cursor, reverse cursor
*/
unsigned int defaultfg = 7;
unsigned int defaultbg = 0;
static unsigned int defaultcs = 256;
unsigned int defaultfg = 258;
unsigned int defaultbg = 259;
unsigned int defaultcs = 256;
static unsigned int defaultrcs = 257;
/*
@ -150,14 +163,24 @@ static unsigned int mousebg = 0;
*/
static unsigned int defaultattr = 11;
/*
* Force mouse select/shortcuts while mask is active (when MODE_MOUSE is set).
* Note that if you want to use ShiftMask with selmasks, set this to an other
* modifier, set to 0 to not use it.
*/
static uint forcemousemod = ShiftMask;
/*
* Internal mouse shortcuts.
* Beware that overloading Button1 will disable the selection.
*/
static MouseShortcut mshortcuts[] = {
/* button mask string */
{ Button4, XK_ANY_MOD, "\031" },
{ Button5, XK_ANY_MOD, "\005" },
/* mask button function argument release */
{ XK_ANY_MOD, Button2, selpaste, {.i = 0}, 1 },
{ ShiftMask, Button4, ttysend, {.s = "\033[5;2~"} },
{ XK_ANY_MOD, Button4, ttysend, {.s = "\031"} },
{ ShiftMask, Button5, ttysend, {.s = "\033[6;2~"} },
{ XK_ANY_MOD, Button5, ttysend, {.s = "\005"} },
};
/* Internal keyboard shortcuts. */
@ -176,8 +199,8 @@ static Shortcut shortcuts[] = {
{ TERMMOD, XK_C, clipcopy, {.i = 0} },
{ TERMMOD, XK_V, clippaste, {.i = 0} },
{ TERMMOD, XK_Y, selpaste, {.i = 0} },
{ ShiftMask, XK_Insert, selpaste, {.i = 0} },
{ TERMMOD, XK_Num_Lock, numlock, {.i = 0} },
{ TERMMOD, XK_I, iso14755, {.i = 0} },
};
/*
@ -195,10 +218,6 @@ static Shortcut shortcuts[] = {
* * 0: no value
* * > 0: cursor application mode enabled
* * < 0: cursor application mode disabled
* crlf value
* * 0: no value
* * > 0: crlf mode is enabled
* * < 0: crlf mode is disabled
*
* Be careful with the order of the definitions because st searches in
* this table sequentially, so any XK_ANY_MOD must be in the last
@ -217,13 +236,6 @@ static KeySym mappedkeys[] = { -1 };
*/
static uint ignoremod = Mod2Mask|XK_SWITCH_MOD;
/*
* Override mouse-select while mask is active (when MODE_MOUSE is set).
* Note that if you want to use ShiftMask with selmasks, set this to an other
* modifier, set to 0 to not use it.
*/
static uint forceselmod = ShiftMask;
/*
* This is the huge key array which defines all compatibility to the Linux
* world. Please decide about changes wisely.

24
config.mk
View File

@ -1,5 +1,5 @@
# st version
VERSION = 0.8.1
VERSION = 0.9.2
# Customize below to fit your system
@ -10,19 +10,27 @@ MANPREFIX = $(PREFIX)/share/man
X11INC = /usr/X11R6/include
X11LIB = /usr/X11R6/lib
PKG_CONFIG = pkg-config
# includes and libs
INCS = -I$(X11INC) \
`pkg-config --cflags fontconfig` \
`pkg-config --cflags freetype2`
`$(PKG_CONFIG) --cflags fontconfig` \
`$(PKG_CONFIG) --cflags freetype2`
LIBS = -L$(X11LIB) -lm -lrt -lX11 -lutil -lXft \
`pkg-config --libs fontconfig` \
`pkg-config --libs freetype2`
`$(PKG_CONFIG) --libs fontconfig` \
`$(PKG_CONFIG) --libs freetype2`
# flags
CPPFLAGS = -DVERSION=\"$(VERSION)\" -D_XOPEN_SOURCE=600
STCFLAGS = $(INCS) $(CPPFLAGS) $(CFLAGS)
STCPPFLAGS = -DVERSION=\"$(VERSION)\" -D_XOPEN_SOURCE=600
STCFLAGS = $(INCS) $(STCPPFLAGS) $(CPPFLAGS) $(CFLAGS)
STLDFLAGS = $(LIBS) $(LDFLAGS)
# OpenBSD:
#CPPFLAGS = -DVERSION=\"$(VERSION)\" -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
#LIBS = -L$(X11LIB) -lm -lX11 -lutil -lXft \
# `$(PKG_CONFIG) --libs fontconfig` \
# `$(PKG_CONFIG) --libs freetype2`
#MANPREFIX = ${PREFIX}/man
# compiler and linker
# CC = c99

164
patches/st-anysize-20220718-baa9357.diff Normal file
View File

@ -0,0 +1,164 @@
From 8dcdc4b21a73268e167d98aa30f24315c7f3b7ff Mon Sep 17 00:00:00 2001
From: Bakkeby <bakkeby@gmail.com>
Date: Mon, 18 Jul 2022 16:52:03 +0200
Subject: [PATCH] Adding anysize patch
---
x.c | 56 ++++++++++++++++++++++++++++++--------------------------
1 file changed, 30 insertions(+), 26 deletions(-)
diff --git a/x.c b/x.c
index 2a3bd38..f534347 100644
--- a/x.c
+++ b/x.c
@@ -81,6 +81,7 @@ typedef XftGlyphFontSpec GlyphFontSpec;
typedef struct {
int tw, th; /* tty width and height */
int w, h; /* window width and height */
+ int hborderpx, vborderpx;
int ch; /* char height */
int cw; /* char width */
int mode; /* window state/mode flags */
@@ -331,7 +332,7 @@ ttysend(const Arg *arg)
int
evcol(XEvent *e)
{
- int x = e->xbutton.x - borderpx;
+ int x = e->xbutton.x - win.hborderpx;
LIMIT(x, 0, win.tw - 1);
return x / win.cw;
}
@@ -339,7 +340,7 @@ evcol(XEvent *e)
int
evrow(XEvent *e)
{
- int y = e->xbutton.y - borderpx;
+ int y = e->xbutton.y - win.vborderpx;
LIMIT(y, 0, win.th - 1);
return y / win.ch;
}
@@ -739,6 +740,9 @@ cresize(int width, int height)
col = MAX(1, col);
row = MAX(1, row);
+ win.hborderpx = (win.w - col * win.cw) / 2;
+ win.vborderpx = (win.h - row * win.ch) / 2;
+
tresize(col, row);
xresize(col, row);
ttyresize(win.tw, win.th);
@@ -869,8 +873,8 @@ xhints(void)
sizeh->flags = PSize | PResizeInc | PBaseSize | PMinSize;
sizeh->height = win.h;
sizeh->width = win.w;
- sizeh->height_inc = win.ch;
- sizeh->width_inc = win.cw;
+ sizeh->height_inc = 1;
+ sizeh->width_inc = 1;
sizeh->base_height = 2 * borderpx;
sizeh->base_width = 2 * borderpx;
sizeh->min_height = win.ch + 2 * borderpx;
@@ -1152,8 +1156,8 @@ xinit(int cols, int rows)
xloadcols();
/* adjust fixed window geometry */
- win.w = 2 * borderpx + cols * win.cw;
- win.h = 2 * borderpx + rows * win.ch;
+ win.w = 2 * win.hborderpx + 2 * borderpx + cols * win.cw;
+ win.h = 2 * win.vborderpx + 2 * borderpx + rows * win.ch;
if (xw.gm & XNegative)
xw.l += DisplayWidth(xw.dpy, xw.scr) - win.w - 2;
if (xw.gm & YNegative)
@@ -1242,7 +1246,7 @@ xinit(int cols, int rows)
int
xmakeglyphfontspecs(XftGlyphFontSpec *specs, const Glyph *glyphs, int len, int x, int y)
{
- float winx = borderpx + x * win.cw, winy = borderpx + y * win.ch, xp, yp;
+ float winx = win.hborderpx + x * win.cw, winy = win.vborderpx + y * win.ch, xp, yp;
ushort mode, prevmode = USHRT_MAX;
Font *font = &dc.font;
int frcflags = FRC_NORMAL;
@@ -1375,7 +1379,7 @@ void
xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, int x, int y)
{
int charlen = len * ((base.mode & ATTR_WIDE) ? 2 : 1);
- int winx = borderpx + x * win.cw, winy = borderpx + y * win.ch,
+ int winx = win.hborderpx + x * win.cw, winy = win.vborderpx + y * win.ch,
width = charlen * win.cw;
Color *fg, *bg, *temp, revfg, revbg, truefg, truebg;
XRenderColor colfg, colbg;
@@ -1465,17 +1469,17 @@ xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, int x, i
/* Intelligent cleaning up of the borders. */
if (x == 0) {
- xclear(0, (y == 0)? 0 : winy, borderpx,
+ xclear(0, (y == 0)? 0 : winy, win.hborderpx,
winy + win.ch +
- ((winy + win.ch >= borderpx + win.th)? win.h : 0));
+ ((winy + win.ch >= win.vborderpx + win.th)? win.h : 0));
}
- if (winx + width >= borderpx + win.tw) {
+ if (winx + width >= win.hborderpx + win.tw) {
xclear(winx + width, (y == 0)? 0 : winy, win.w,
- ((winy + win.ch >= borderpx + win.th)? win.h : (winy + win.ch)));
+ ((winy + win.ch >= win.vborderpx + win.th)? win.h : (winy + win.ch)));
}
if (y == 0)
- xclear(winx, 0, winx + width, borderpx);
- if (winy + win.ch >= borderpx + win.th)
+ xclear(winx, 0, winx + width, win.vborderpx);
+ if (winy + win.ch >= win.vborderpx + win.th)
xclear(winx, winy + win.ch, winx + width, win.h);
/* Clean up the region we want to draw to. */
@@ -1569,35 +1573,35 @@ xdrawcursor(int cx, int cy, Glyph g, int ox, int oy, Glyph og)
case 3: /* Blinking Underline */
case 4: /* Steady Underline */
XftDrawRect(xw.draw, &drawcol,
- borderpx + cx * win.cw,
- borderpx + (cy + 1) * win.ch - \
+ win.hborderpx + cx * win.cw,
+ win.vborderpx + (cy + 1) * win.ch - \
cursorthickness,
win.cw, cursorthickness);
break;
case 5: /* Blinking bar */
case 6: /* Steady bar */
XftDrawRect(xw.draw, &drawcol,
- borderpx + cx * win.cw,
- borderpx + cy * win.ch,
+ win.hborderpx + cx * win.cw,
+ win.vborderpx + cy * win.ch,
cursorthickness, win.ch);
break;
}
} else {
XftDrawRect(xw.draw, &drawcol,
- borderpx + cx * win.cw,
- borderpx + cy * win.ch,
+ win.hborderpx + cx * win.cw,
+ win.vborderpx + cy * win.ch,
win.cw - 1, 1);
XftDrawRect(xw.draw, &drawcol,
- borderpx + cx * win.cw,
- borderpx + cy * win.ch,
+ win.hborderpx + cx * win.cw,
+ win.vborderpx + cy * win.ch,
1, win.ch - 1);
XftDrawRect(xw.draw, &drawcol,
- borderpx + (cx + 1) * win.cw - 1,
- borderpx + cy * win.ch,
+ win.hborderpx + (cx + 1) * win.cw - 1,
+ win.vborderpx + cy * win.ch,
1, win.ch - 1);
XftDrawRect(xw.draw, &drawcol,
- borderpx + cx * win.cw,
- borderpx + (cy + 1) * win.ch - 1,
+ win.hborderpx + cx * win.cw,
+ win.vborderpx + (cy + 1) * win.ch - 1,
win.cw, 1);
}
}
--
2.37.1

7
st.1
View File

@ -159,10 +159,6 @@ Copy the selected text to the clipboard selection.
.TP
.B Ctrl-Shift-v
Paste from the clipboard selection.
.TP
.B Ctrl-Shift-i
Launch dmenu to enter a unicode codepoint and send the corresponding glyph
to st.
.SH CUSTOMIZATION
.B st
can be customized by creating a custom config.h and (re)compiling the source
@ -174,7 +170,8 @@ See the LICENSE file for the terms of redistribution.
.SH SEE ALSO
.BR tabbed (1),
.BR utmp (1),
.BR stty (1)
.BR stty (1),
.BR scroll (1)
.SH BUGS
See the TODO file in the distribution.

428
st.c
View File

@ -38,14 +38,10 @@
/* macros */
#define IS_SET(flag) ((term.mode & (flag)) != 0)
#define NUMMAXLEN(x) ((int)(sizeof(x) * 2.56 + 0.5) + 1)
#define ISCONTROLC0(c) (BETWEEN(c, 0, 0x1f) || (c) == '\177')
#define ISCONTROLC0(c) (BETWEEN(c, 0, 0x1f) || (c) == 0x7f)
#define ISCONTROLC1(c) (BETWEEN(c, 0x80, 0x9f))
#define ISCONTROL(c) (ISCONTROLC0(c) || ISCONTROLC1(c))
#define ISDELIM(u) (utf8strchr(worddelimiters, u) != NULL)
/* constants */
#define ISO14755CMD "dmenu -w \"$WINDOWID\" -p codepoint: </dev/null"
#define ISDELIM(u) (u && wcschr(worddelimiters, u))
enum term_mode {
MODE_WRAP = 1 << 0,
@ -55,7 +51,6 @@ enum term_mode {
MODE_ECHO = 1 << 4,
MODE_PRINT = 1 << 5,
MODE_UTF8 = 1 << 6,
MODE_SIXEL = 1 << 7,
};
enum cursor_movement {
@ -82,12 +77,11 @@ enum charset {
enum escape_state {
ESC_START = 1,
ESC_CSI = 2,
ESC_STR = 4, /* OSC, PM, APC */
ESC_STR = 4, /* DCS, OSC, PM, APC */
ESC_ALTCHARSET = 8,
ESC_STR_END = 16, /* a final string was encountered */
ESC_TEST = 32, /* Enter in test mode */
ESC_UTF8 = 64,
ESC_DCS =128,
};
typedef struct {
@ -133,13 +127,14 @@ typedef struct {
int charset; /* current charset */
int icharset; /* selected charset for sequence */
int *tabs;
Rune lastc; /* last printed char outside of sequence, 0 if control */
} Term;
/* CSI Escape sequence structs */
/* ESC '[' [[ [<priv>] <arg> [;]] <mode> [<mode>]] */
typedef struct {
char buf[ESC_BUF_SIZ]; /* raw string */
int len; /* raw string length */
size_t len; /* raw string length */
char priv;
int arg[ESC_ARG_SIZ];
int narg; /* nb of args */
@ -150,8 +145,9 @@ typedef struct {
/* ESC type [[ [<priv>] <arg> [;]] <mode>] ESC '\' */
typedef struct {
char type; /* ESC type ... */
char buf[STR_BUF_SIZ]; /* raw string */
int len; /* raw string length */
char *buf; /* allocated raw string */
size_t siz; /* allocation size */
size_t len; /* raw string length */
char *args[STR_ARG_SIZ];
int narg; /* nb of args */
} STREscape;
@ -165,6 +161,7 @@ static void csidump(void);
static void csihandle(void);
static void csiparse(void);
static void csireset(void);
static void osc_color_response(int, int, int);
static int eschandle(uchar);
static void strdump(void);
static void strhandle(void);
@ -190,18 +187,18 @@ static void tputc(Rune);
static void treset(void);
static void tscrollup(int, int);
static void tscrolldown(int, int);
static void tsetattr(int *, int);
static void tsetchar(Rune, Glyph *, int, int);
static void tsetattr(const int *, int);
static void tsetchar(Rune, const Glyph *, int, int);
static void tsetdirt(int, int);
static void tsetscroll(int, int);
static void tswapscreen(void);
static void tsetmode(int, int, int *, int);
static void tsetmode(int, int, const int *, int);
static int twrite(const char *, int, int);
static void tfulldirt(void);
static void tcontrolcode(uchar );
static void tdectest(char );
static void tdefutf8(char);
static int32_t tdefcolor(int *, int *, int);
static int32_t tdefcolor(const int *, int *, int);
static void tdeftran(char);
static void tstrsequence(uchar);
@ -214,7 +211,6 @@ static void selsnap(int *, int *, int);
static size_t utf8decode(const char *, Rune *, size_t);
static Rune utf8decodebyte(char, size_t *);
static char utf8encodebyte(Rune, size_t);
static char *utf8strchr(char *, Rune);
static size_t utf8validate(Rune *, size_t);
static char *base64dec(const char *);
@ -231,10 +227,10 @@ static int iofd = 1;
static int cmdfd;
static pid_t pid;
static uchar utfbyte[UTF_SIZ + 1] = {0x80, 0, 0xC0, 0xE0, 0xF0};
static uchar utfmask[UTF_SIZ + 1] = {0xC0, 0x80, 0xE0, 0xF0, 0xF8};
static Rune utfmin[UTF_SIZ + 1] = { 0, 0, 0x80, 0x800, 0x10000};
static Rune utfmax[UTF_SIZ + 1] = {0x10FFFF, 0x7F, 0x7FF, 0xFFFF, 0x10FFFF};
static const uchar utfbyte[UTF_SIZ + 1] = {0x80, 0, 0xC0, 0xE0, 0xF0};
static const uchar utfmask[UTF_SIZ + 1] = {0xC0, 0x80, 0xE0, 0xF0, 0xF8};
static const Rune utfmin[UTF_SIZ + 1] = { 0, 0, 0x80, 0x800, 0x10000};
static const Rune utfmax[UTF_SIZ + 1] = {0x10FFFF, 0x7F, 0x7FF, 0xFFFF, 0x10FFFF};
ssize_t
xwrite(int fd, const char *s, size_t len)
@ -256,10 +252,10 @@ xwrite(int fd, const char *s, size_t len)
void *
xmalloc(size_t len)
{
void *p = malloc(len);
void *p;
if (!p)
die("Out of memory\n");
if (!(p = malloc(len)))
die("malloc: %s\n", strerror(errno));
return p;
}
@ -268,18 +264,20 @@ void *
xrealloc(void *p, size_t len)
{
if ((p = realloc(p, len)) == NULL)
die("Out of memory\n");
die("realloc: %s\n", strerror(errno));
return p;
}
char *
xstrdup(char *s)
xstrdup(const char *s)
{
if ((s = strdup(s)) == NULL)
die("Out of memory\n");
char *p;
return s;
if ((p = strdup(s)) == NULL)
die("strdup: %s\n", strerror(errno));
return p;
}
size_t
@ -341,23 +339,6 @@ utf8encodebyte(Rune u, size_t i)
return utfbyte[i] | (u & ~utfmask[i]);
}
char *
utf8strchr(char *s, Rune u)
{
Rune r;
size_t i, j, len;
len = strlen(s);
for (i = 0, j = 0; i < len; i += j) {
if (!(j = utf8decode(&s[i], &r, len - i)))
break;
if (r == u)
return &(s[i]);
}
return NULL;
}
size_t
utf8validate(Rune *u, size_t i)
{
@ -369,26 +350,12 @@ utf8validate(Rune *u, size_t i)
return i;
}
static const char base64_digits[] = {
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 62, 0, 0, 0,
63, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 0, 0, 0, -1, 0, 0, 0, 0, 1,
2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21,
22, 23, 24, 25, 0, 0, 0, 0, 0, 0, 26, 27, 28, 29, 30, 31, 32, 33, 34,
35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
};
char
base64dec_getc(const char **src)
{
while (**src && !isprint(**src)) (*src)++;
return *((*src)++);
while (**src && !isprint((unsigned char)**src))
(*src)++;
return **src ? *((*src)++) : '='; /* emulate padding if string ends */
}
char *
@ -396,6 +363,13 @@ base64dec(const char *src)
{
size_t in_len = strlen(src);
char *result, *dst;
static const char base64_digits[256] = {
[43] = 62, 0, 0, 0, 63, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61,
0, 0, 0, -1, 0, 0, 0, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12,
13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 0, 0, 0, 0,
0, 0, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39,
40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51
};
if (in_len % 4)
in_len += 4 - (in_len % 4);
@ -406,6 +380,10 @@ base64dec(const char *src)
int c = base64_digits[(unsigned char) base64dec_getc(&src)];
int d = base64_digits[(unsigned char) base64dec_getc(&src)];
/* invalid input. 'a' can be -1, e.g. if src is "\n" (c-str) */
if (a == -1 || b == -1)
break;
*dst++ = (a << 2) | ((b & 0x30) >> 4);
if (c == -1)
break;
@ -446,6 +424,7 @@ selstart(int col, int row, int snap)
selclear();
sel.mode = SEL_EMPTY;
sel.type = SEL_REGULAR;
sel.alt = IS_SET(MODE_ALTSCREEN);
sel.snap = snap;
sel.oe.x = sel.ob.x = col;
sel.oe.y = sel.ob.y = row;
@ -474,13 +453,12 @@ selextend(int col, int row, int type, int done)
oldsey = sel.ne.y;
oldtype = sel.type;
sel.alt = IS_SET(MODE_ALTSCREEN);
sel.oe.x = col;
sel.oe.y = row;
selnormalize();
sel.type = type;
if (oldey != sel.oe.y || oldex != sel.oe.x || oldtype != sel.type)
if (oldey != sel.oe.y || oldex != sel.oe.x || oldtype != sel.type || sel.mode == SEL_EMPTY)
tsetdirt(MIN(sel.nb.y, oldsby), MAX(sel.ne.y, oldsey));
sel.mode = done ? SEL_IDLE : SEL_READY;
@ -535,7 +513,7 @@ selsnap(int *x, int *y, int direction)
{
int newx, newy, xt, yt;
int delim, prevdelim;
Glyph *gp, *prevgp;
const Glyph *gp, *prevgp;
switch (sel.snap) {
case SNAP_WORD:
@ -608,7 +586,7 @@ getsel(void)
{
char *str, *ptr;
int y, bufsize, lastx, linelen;
Glyph *gp, *last;
const Glyph *gp, *last;
if (sel.ob.x == -1)
return NULL;
@ -650,7 +628,8 @@ getsel(void)
* st.
* FIXME: Fix the computer world.
*/
if ((y < sel.ne.y || lastx >= linelen) && !(last->mode & ATTR_WRAP))
if ((y < sel.ne.y || lastx >= linelen) &&
(!(last->mode & ATTR_WRAP) || sel.type == SEL_RECTANGULAR))
*ptr++ = '\n';
}
*ptr = 0;
@ -681,7 +660,7 @@ die(const char *errstr, ...)
void
execsh(char *cmd, char **args)
{
char *sh, *prog;
char *sh, *prog, *arg;
const struct passwd *pw;
errno = 0;
@ -695,13 +674,20 @@ execsh(char *cmd, char **args)
if ((sh = getenv("SHELL")) == NULL)
sh = (pw->pw_shell[0]) ? pw->pw_shell : cmd;
if (args)
if (args) {
prog = args[0];
else if (utmp)
arg = NULL;
} else if (scroll) {
prog = scroll;
arg = utmp ? utmp : sh;
} else if (utmp) {
prog = utmp;
else
arg = NULL;
} else {
prog = sh;
DEFAULT(args, ((char *[]) {prog, NULL}));
arg = NULL;
}
DEFAULT(args, ((char *[]) {prog, arg, NULL}));
unsetenv("COLUMNS");
unsetenv("LINES");
@ -730,14 +716,16 @@ sigchld(int a)
pid_t p;
if ((p = waitpid(pid, &stat, WNOHANG)) < 0)
die("Waiting for pid %hd failed: %s\n", pid, strerror(errno));
die("waiting for pid %hd failed: %s\n", pid, strerror(errno));
if (pid != p)
return;
if (!WIFEXITED(stat) || WEXITSTATUS(stat))
die("child finished with error '%d'\n", stat);
exit(0);
if (WIFEXITED(stat) && WEXITSTATUS(stat))
die("child exited with status %d\n", WEXITSTATUS(stat));
else if (WIFSIGNALED(stat))
die("child terminated due to signal %d\n", WTERMSIG(stat));
_exit(0);
}
void
@ -765,7 +753,7 @@ stty(char **args)
}
int
ttynew(char *line, char *cmd, char *out, char **args)
ttynew(const char *line, char *cmd, const char *out, char **args)
{
int m, s;
@ -781,7 +769,8 @@ ttynew(char *line, char *cmd, char *out, char **args)
if (line) {
if ((cmdfd = open(line, O_RDWR)) < 0)
die("open line failed: %s\n", strerror(errno));
die("open line '%s' failed: %s\n",
line, strerror(errno));
dup2(cmdfd, 0);
stty(args);
return cmdfd;
@ -793,21 +782,30 @@ ttynew(char *line, char *cmd, char *out, char **args)
switch (pid = fork()) {
case -1:
die("fork failed\n");
die("fork failed: %s\n", strerror(errno));
break;
case 0:
close(iofd);
close(m);
setsid(); /* create a new process group */
dup2(s, 0);
dup2(s, 1);
dup2(s, 2);
if (ioctl(s, TIOCSCTTY, NULL) < 0)
die("ioctl TIOCSCTTY failed: %s\n", strerror(errno));
if (s > 2)
close(s);
close(m);
#ifdef __OpenBSD__
if (pledge("stdio getpw proc exec", NULL) == -1)
die("pledge\n");
#endif
execsh(cmd, args);
break;
default:
#ifdef __OpenBSD__
if (pledge("stdio rpath tty proc", NULL) == -1)
die("pledge\n");
#endif
close(s);
cmdfd = m;
signal(SIGCHLD, sigchld);
@ -821,22 +819,26 @@ ttyread(void)
{
static char buf[BUFSIZ];
static int buflen = 0;
int written;
int ret;
int ret, written;
/* append read bytes to unprocessed bytes */
if ((ret = read(cmdfd, buf+buflen, LEN(buf)-buflen)) < 0)
die("Couldn't read from shell: %s\n", strerror(errno));
buflen += ret;
ret = read(cmdfd, buf+buflen, LEN(buf)-buflen);
switch (ret) {
case 0:
exit(0);
case -1:
die("couldn't read from shell: %s\n", strerror(errno));
default:
buflen += ret;
written = twrite(buf, buflen, 0);
buflen -= written;
/* keep any uncomplete utf8 char for the next call */
/* keep any incomplete UTF-8 byte sequence for the next call */
if (buflen > 0)
memmove(buf, buf + written, buflen);
return ret;
}
}
void
ttywrite(const char *s, size_t n, int may_echo)
@ -937,7 +939,7 @@ ttyresize(int tw, int th)
}
void
ttyhangup()
ttyhangup(void)
{
/* Send SIGHUP to shell */
kill(pid, SIGHUP);
@ -1095,32 +1097,22 @@ tscrollup(int orig, int n)
void
selscroll(int orig, int n)
{
if (sel.ob.x == -1)
if (sel.ob.x == -1 || sel.alt != IS_SET(MODE_ALTSCREEN))
return;
if (BETWEEN(sel.ob.y, orig, term.bot) || BETWEEN(sel.oe.y, orig, term.bot)) {
if ((sel.ob.y += n) > term.bot || (sel.oe.y += n) < term.top) {
if (BETWEEN(sel.nb.y, orig, term.bot) != BETWEEN(sel.ne.y, orig, term.bot)) {
selclear();
} else if (BETWEEN(sel.nb.y, orig, term.bot)) {
sel.ob.y += n;
sel.oe.y += n;
if (sel.ob.y < term.top || sel.ob.y > term.bot ||
sel.oe.y < term.top || sel.oe.y > term.bot) {
selclear();
return;
}
if (sel.type == SEL_RECTANGULAR) {
if (sel.ob.y < term.top)
sel.ob.y = term.top;
if (sel.oe.y > term.bot)
sel.oe.y = term.bot;
} else {
if (sel.ob.y < term.top) {
sel.ob.y = term.top;
sel.ob.x = 0;
}
if (sel.oe.y > term.bot) {
sel.oe.y = term.bot;
sel.oe.x = term.col;
}
}
selnormalize();
}
}
}
void
tnewline(int first_col)
@ -1140,6 +1132,7 @@ csiparse(void)
{
char *p = csiescseq.buf, *np;
long int v;
int sep = ';'; /* colon or semi-colon, but not both */
csiescseq.narg = 0;
if (*p == '?') {
@ -1157,7 +1150,9 @@ csiparse(void)
v = -1;
csiescseq.arg[csiescseq.narg++] = v;
p = np;
if (*p != ';' || csiescseq.narg == ESC_ARG_SIZ)
if (sep == ';' && *p == ':')
sep = ':'; /* allow override to colon once */
if (*p != sep || csiescseq.narg == ESC_ARG_SIZ)
break;
p++;
}
@ -1190,9 +1185,9 @@ tmoveto(int x, int y)
}
void
tsetchar(Rune u, Glyph *attr, int x, int y)
tsetchar(Rune u, const Glyph *attr, int x, int y)
{
static char *vt100_0[62] = { /* 0x41 - 0x7e */
static const char *vt100_0[62] = { /* 0x41 - 0x7e */
"↑", "↓", "→", "←", "█", "▚", "☃", /* A - G */
0, 0, 0, 0, 0, 0, 0, 0, /* H - O */
0, 0, 0, 0, 0, 0, 0, 0, /* P - W */
@ -1304,7 +1299,7 @@ tdeleteline(int n)
}
int32_t
tdefcolor(int *attr, int *npar, int l)
tdefcolor(const int *attr, int *npar, int l)
{
int32_t idx = -1;
uint r, g, b;
@ -1354,7 +1349,7 @@ tdefcolor(int *attr, int *npar, int l)
}
void
tsetattr(int *attr, int l)
tsetattr(const int *attr, int l)
{
int i;
int32_t idx;
@ -1447,7 +1442,8 @@ tsetattr(int *attr, int l)
} else {
fprintf(stderr,
"erresc(default): gfx attr %d unknown\n",
attr[i]), csidump();
attr[i]);
csidump();
}
break;
}
@ -1471,9 +1467,9 @@ tsetscroll(int t, int b)
}
void
tsetmode(int priv, int set, int *args, int narg)
tsetmode(int priv, int set, const int *args, int narg)
{
int alt, *lim;
int alt; const int *lim;
for (lim = args + narg; args < lim; ++args) {
if (priv) {
@ -1567,6 +1563,7 @@ tsetmode(int priv, int set, int *args, int narg)
case 1015: /* urxvt mangled mouse mode; incompatible
and can be mistaken for other control
codes. */
break;
default:
fprintf(stderr,
"erresc: unknown private set/reset mode %d\n",
@ -1648,6 +1645,12 @@ csihandle(void)
if (csiescseq.arg[0] == 0)
ttywrite(vtiden, strlen(vtiden), 0);
break;
case 'b': /* REP -- if last char is printable print it <n> more times */
LIMIT(csiescseq.arg[0], 1, 65535);
if (term.lastc)
while (csiescseq.arg[0]-- > 0)
tputc(term.lastc);
break;
case 'C': /* CUF -- Cursor <n> Forward */
case 'a': /* HPR -- Cursor <n> Forward */
DEFAULT(csiescseq.arg[0], 1);
@ -1702,7 +1705,7 @@ csihandle(void)
}
break;
case 1: /* above */
if (term.c.y > 1)
if (term.c.y > 0)
tclearregion(0, 0, term.col-1, term.c.y-1);
tclearregion(0, term.c.y, term.c.x, term.c.y);
break;
@ -1728,6 +1731,7 @@ csihandle(void)
}
break;
case 'S': /* SU -- Scroll <n> line up */
if (csiescseq.priv) break;
DEFAULT(csiescseq.arg[0], 1);
tscrollup(term.top, csiescseq.arg[0]);
break;
@ -1769,11 +1773,18 @@ csihandle(void)
case 'm': /* SGR -- Terminal attribute (color) */
tsetattr(csiescseq.arg, csiescseq.narg);
break;
case 'n': /* DSR – Device Status Report (cursor position) */
if (csiescseq.arg[0] == 6) {
case 'n': /* DSR -- Device Status Report */
switch (csiescseq.arg[0]) {
case 5: /* Status Report "OK" `0n` */
ttywrite("\033[0n", sizeof("\033[0n") - 1, 0);
break;
case 6: /* Report Cursor Position (CPR) "<row>;<column>R" */
len = snprintf(buf, sizeof(buf), "\033[%i;%iR",
term.c.y+1, term.c.x+1);
ttywrite(buf, len, 0);
break;
default:
goto unknown;
}
break;
case 'r': /* DECSTBM -- Set Scrolling Region */
@ -1790,7 +1801,11 @@ csihandle(void)
tcursor(CURSOR_SAVE);
break;
case 'u': /* DECRC -- Restore cursor position (ANSI.SYS) */
if (csiescseq.priv) {
goto unknown;
} else {
tcursor(CURSOR_LOAD);
}
break;
case ' ':
switch (csiescseq.mode[1]) {
@ -1808,7 +1823,7 @@ csihandle(void)
void
csidump(void)
{
int i;
size_t i;
uint c;
fprintf(stderr, "ESC[");
@ -1835,11 +1850,41 @@ csireset(void)
memset(&csiescseq, 0, sizeof(csiescseq));
}
void
osc_color_response(int num, int index, int is_osc4)
{
int n;
char buf[32];
unsigned char r, g, b;
if (xgetcolor(is_osc4 ? num : index, &r, &g, &b)) {
fprintf(stderr, "erresc: failed to fetch %s color %d\n",
is_osc4 ? "osc4" : "osc",
is_osc4 ? num : index);
return;
}
n = snprintf(buf, sizeof buf, "\033]%s%d;rgb:%02x%02x/%02x%02x/%02x%02x\007",
is_osc4 ? "4;" : "", num, r, r, g, g, b, b);
if (n < 0 || n >= sizeof(buf)) {
fprintf(stderr, "error: %s while printing %s response\n",
n < 0 ? "snprintf failed" : "truncation occurred",
is_osc4 ? "osc4" : "osc");
} else {
ttywrite(buf, n, 1);
}
}
void
strhandle(void)
{
char *p = NULL;
char *p = NULL, *dec;
int j, narg, par;
const struct { int idx; char *str; } osc_table[] = {
{ defaultfg, "foreground" },
{ defaultbg, "background" },
{ defaultcs, "cursor" }
};
term.esc &= ~(ESC_STR_END|ESC_STR);
strparse();
@ -1849,15 +1894,21 @@ strhandle(void)
case ']': /* OSC -- Operating System Command */
switch (par) {
case 0:
if (narg > 1) {
xsettitle(strescseq.args[1]);
xseticontitle(strescseq.args[1]);
}
return;
case 1:
if (narg > 1)
xseticontitle(strescseq.args[1]);
return;
case 2:
if (narg > 1)
xsettitle(strescseq.args[1]);
return;
case 52:
if (narg > 2) {
char *dec;
if (narg > 2 && allowwindowops) {
dec = base64dec(strescseq.args[2]);
if (dec) {
xsetsel(dec);
@ -1867,21 +1918,47 @@ strhandle(void)
}
}
return;
case 10:
case 11:
case 12:
if (narg < 2)
break;
p = strescseq.args[1];
if ((j = par - 10) < 0 || j >= LEN(osc_table))
break; /* shouldn't be possible */
if (!strcmp(p, "?")) {
osc_color_response(par, osc_table[j].idx, 0);
} else if (xsetcolorname(osc_table[j].idx, p)) {
fprintf(stderr, "erresc: invalid %s color: %s\n",
osc_table[j].str, p);
} else {
tfulldirt();
}
return;
case 4: /* color set */
if (narg < 3)
break;
p = strescseq.args[2];
/* FALLTHROUGH */
case 104: /* color reset, here p = NULL */
case 104: /* color reset */
j = (narg > 1) ? atoi(strescseq.args[1]) : -1;
if (xsetcolorname(j, p)) {
fprintf(stderr, "erresc: invalid color %s\n", p);
if (p && !strcmp(p, "?")) {
osc_color_response(j, 0, 1);
} else if (xsetcolorname(j, p)) {
if (par == 104 && narg <= 1) {
xloadcols();
return; /* color reset without parameter */
}
fprintf(stderr, "erresc: invalid color j=%d, p=%s\n",
j, p ? p : "(null)");
} else {
/*
* TODO if defaultbg color is changed, borders
* are dirty
*/
redraw();
tfulldirt();
}
return;
}
@ -1890,7 +1967,6 @@ strhandle(void)
xsettitle(strescseq.args[0]);
return;
case 'P': /* DCS -- Device Control String */
term.mode |= ESC_DCS;
case '_': /* APC -- Application Program Command */
case '^': /* PM -- Privacy Message */
return;
@ -1925,7 +2001,7 @@ strparse(void)
void
strdump(void)
{
int i;
size_t i;
uint c;
fprintf(stderr, "ESC%c", strescseq.type);
@ -1952,7 +2028,10 @@ strdump(void)
void
strreset(void)
{
memset(&strescseq, 0, sizeof(strescseq));
strescseq = (STREscape){
.buf = xrealloc(strescseq.buf, STR_BUF_SIZ),
.siz = STR_BUF_SIZ,
};
}
void
@ -1972,28 +2051,6 @@ tprinter(char *s, size_t len)
}
}
void
iso14755(const Arg *arg)
{
FILE *p;
char *us, *e, codepoint[9], uc[UTF_SIZ];
unsigned long utf32;
if (!(p = popen(ISO14755CMD, "r")))
return;
us = fgets(codepoint, sizeof(codepoint), p);
pclose(p);
if (!us || *us == '\0' || *us == '-' || strlen(us) > 7)
return;
if ((utf32 = strtoul(us, &e, 16)) == ULONG_MAX ||
(*e != '\n' && *e != '\0'))
return;
ttywrite(uc, utf8encode(utf32, uc), 1);
}
void
toggleprinter(const Arg *arg)
{
@ -2027,7 +2084,7 @@ void
tdumpline(int n)
{
char buf[UTF_SIZ];
Glyph *bp, *end;
const Glyph *bp, *end;
bp = &term.line[n][0];
end = &bp[MIN(tlinelen(n), term.col) - 1];
@ -2103,12 +2160,9 @@ tdectest(char c)
void
tstrsequence(uchar c)
{
strreset();
switch (c) {
case 0x90: /* DCS -- Device Control String */
c = 'P';
term.esc |= ESC_DCS;
break;
case 0x9f: /* APC -- Application Program Command */
c = '_';
@ -2120,6 +2174,7 @@ tstrsequence(uchar c)
c = ']';
break;
}
strreset();
strescseq.type = c;
term.esc |= ESC_STR;
}
@ -2162,6 +2217,7 @@ tcontrolcode(uchar ascii)
return;
case '\032': /* SUB */
tsetchar('?', &term.c.attr, term.c.x, term.c.y);
/* FALLTHROUGH */
case '\030': /* CAN */
csireset();
break;
@ -2278,10 +2334,11 @@ eschandle(uchar ascii)
case 'Z': /* DECID -- Identify Terminal */
ttywrite(vtiden, strlen(vtiden), 0);
break;
case 'c': /* RIS -- Reset to inital state */
case 'c': /* RIS -- Reset to initial state */
treset();
resettitle();
xloadcols();
xsetmode(0, MODE_HIDE);
break;
case '=': /* DECPAM -- Application keypad */
xsetmode(1, MODE_APPKEYPAD);
@ -2316,16 +2373,14 @@ tputc(Rune u)
Glyph *gp;
control = ISCONTROL(u);
if (!IS_SET(MODE_UTF8) && !IS_SET(MODE_SIXEL)) {
if (u < 127 || !IS_SET(MODE_UTF8)) {
c[0] = u;
width = len = 1;
} else {
len = utf8encode(u, c);
if (!control && (width = wcwidth(u)) == -1) {
memcpy(c, "\357\277\275", 4); /* UTF_INVALID */
if (!control && (width = wcwidth(u)) == -1)
width = 1;
}
}
if (IS_SET(MODE_PRINT))
tprinter(c, len);
@ -2339,25 +2394,12 @@ tputc(Rune u)
if (term.esc & ESC_STR) {
if (u == '\a' || u == 030 || u == 032 || u == 033 ||
ISCONTROLC1(u)) {
term.esc &= ~(ESC_START|ESC_STR|ESC_DCS);
if (IS_SET(MODE_SIXEL)) {
/* TODO: render sixel */;
term.mode &= ~MODE_SIXEL;
return;
}
term.esc &= ~(ESC_START|ESC_STR);
term.esc |= ESC_STR_END;
goto check_control_code;
}
if (IS_SET(MODE_SIXEL)) {
/* TODO: implement sixel mode */
return;
}
if (term.esc&ESC_DCS && strescseq.len == 0 && u == 'q')
term.mode |= MODE_SIXEL;
if (strescseq.len+len >= sizeof(strescseq.buf)-1) {
if (strescseq.len+len >= strescseq.siz) {
/*
* Here is a bug in terminals. If the user never sends
* some code to stop the str or esc command, then st
@ -2371,7 +2413,10 @@ tputc(Rune u)
* term.esc = 0;
* strhandle();
*/
if (strescseq.siz > (SIZE_MAX - UTF_SIZ) / 2)
return;
strescseq.siz *= 2;
strescseq.buf = xrealloc(strescseq.buf, strescseq.siz);
}
memmove(&strescseq.buf[strescseq.len], c, len);
@ -2386,10 +2431,15 @@ check_control_code:
* they must not cause conflicts with sequences.
*/
if (control) {
/* in UTF-8 mode ignore handling C1 control characters */
if (IS_SET(MODE_UTF8) && ISCONTROLC1(u))
return;
tcontrolcode(u);
/*
* control codes are not shown ever
*/
if (!term.esc)
term.lastc = 0;
return;
} else if (term.esc & ESC_START) {
if (term.esc & ESC_CSI) {
@ -2420,7 +2470,7 @@ check_control_code:
*/
return;
}
if (sel.ob.x != -1 && BETWEEN(term.c.y, sel.ob.y, sel.oe.y))
if (selected(term.c.x, term.c.y))
selclear();
gp = &term.line[term.c.y][term.c.x];
@ -2430,19 +2480,29 @@ check_control_code:
gp = &term.line[term.c.y][term.c.x];
}
if (IS_SET(MODE_INSERT) && term.c.x+width < term.col)
if (IS_SET(MODE_INSERT) && term.c.x+width < term.col) {
memmove(gp+width, gp, (term.col - term.c.x - width) * sizeof(Glyph));
gp->mode &= ~ATTR_WIDE;
}
if (term.c.x+width > term.col) {
if (IS_SET(MODE_WRAP))
tnewline(1);
else
tmoveto(term.col - width, term.c.y);
gp = &term.line[term.c.y][term.c.x];
}
tsetchar(u, &term.c.attr, term.c.x, term.c.y);
term.lastc = u;
if (width == 2) {
gp->mode |= ATTR_WIDE;
if (term.c.x+1 < term.col) {
if (gp[1].mode == ATTR_WIDE && term.c.x+2 < term.col) {
gp[2].u = ' ';
gp[2].mode &= ~ATTR_WDUMMY;
}
gp[1].u = '\0';
gp[1].mode = ATTR_WDUMMY;
}
@ -2462,7 +2522,7 @@ twrite(const char *buf, int buflen, int show_ctrl)
int n;
for (n = 0; n < buflen; n += charsize) {
if (IS_SET(MODE_UTF8) && !IS_SET(MODE_SIXEL)) {
if (IS_SET(MODE_UTF8)) {
/* process a complete utf8 char */
charsize = utf8decode(buf + n, &u, buflen - n);
if (charsize == 0)
@ -2578,6 +2638,7 @@ void
drawregion(int x1, int y1, int x2, int y2)
{
int y;
for (y = y1; y < y2; y++) {
if (!term.dirty[y])
continue;
@ -2590,7 +2651,7 @@ drawregion(int x1, int y1, int x2, int y2)
void
draw(void)
{
int cx = term.c.x;
int cx = term.c.x, ocx = term.ocx, ocy = term.ocy;
if (!xstartdraw())
return;
@ -2606,8 +2667,11 @@ draw(void)
drawregion(0, 0, term.col, term.row);
xdrawcursor(cx, term.c.y, term.line[term.c.y][cx],
term.ocx, term.ocy, term.line[term.ocy][term.ocx]);
term.ocx = cx, term.ocy = term.c.y;
term.ocx = cx;
term.ocy = term.c.y;
xfinishdraw();
if (ocx != term.ocx || ocy != term.ocy)
xximspot(term.ocx, term.ocy);
}
void

11
st.h
View File

@ -74,13 +74,13 @@ typedef union {
uint ui;
float f;
const void *v;
const char *s;
} Arg;
void die(const char *, ...);
void redraw(void);
void draw(void);
void iso14755(const Arg *);
void printscreen(const Arg *);
void printsel(const Arg *);
void sendbreak(const Arg *);
@ -91,7 +91,7 @@ void tnew(int, int);
void tresize(int, int);
void tsetdirtattr(int);
void ttyhangup(void);
int ttynew(char *, char *, char *, char **);
int ttynew(const char *, char *, const char *, char **);
size_t ttyread(void);
void ttyresize(int, int);
void ttywrite(const char *, size_t, int);
@ -109,15 +109,18 @@ size_t utf8encode(Rune, char *);
void *xmalloc(size_t);
void *xrealloc(void *, size_t);
char *xstrdup(char *);
char *xstrdup(const char *);
/* config.h globals */
extern char *utmp;
extern char *scroll;
extern char *stty_args;
extern char *vtiden;
extern char *worddelimiters;
extern wchar_t *worddelimiters;
extern int allowaltscreen;
extern int allowwindowops;
extern char *termname;
extern unsigned int tabspaces;
extern unsigned int defaultfg;
extern unsigned int defaultbg;
extern unsigned int defaultcs;

41
st.info
View File

@ -1,4 +1,4 @@
st| simpleterm,
st-mono| simpleterm monocolor,
acsc=+C\,D-A.B0E``aaffgghFiGjjkkllmmnnooppqqrrssttuuvvwwxxyyzz{{||}}~~,
am,
bce,
@ -10,7 +10,7 @@ st| simpleterm,
civis=\E[?25l,
clear=\E[H\E[2J,
cnorm=\E[?12l\E[?25h,
colors#8,
colors#2,
cols#80,
cr=^M,
csr=\E[%i%p1%d;%p2%dr,
@ -158,6 +158,7 @@ st| simpleterm,
rc=\E8,
rev=\E[7m,
ri=\EM,
rin=\E[%p1%dT,
ritm=\E[23m,
rmacs=\E(B,
rmcup=\E[?1049l,
@ -168,13 +169,8 @@ st| simpleterm,
rs1=\Ec,
rs2=\E[4l\E>\E[?1034l,
sc=\E7,
setab=\E[4%p1%dm,
setaf=\E[3%p1%dm,
setb=\E[4%?%p1%{1}%=%t4%e%p1%{3}%=%t6%e%p1%{4}%=%t1%e%p1%{6}%=%t3%e%p1%d%;m,
setf=\E[3%?%p1%{1}%=%t4%e%p1%{3}%=%t6%e%p1%{4}%=%t1%e%p1%{6}%=%t3%e%p1%d%;m,
sgr0=\E[0m,
sgr=%?%p9%t\E(0%e\E(B%;\E[0%?%p6%t;1%;%?%p2%t;4%;%?%p1%p3%|%t;7%;%?%p4%t;5%;%?%p7%t;8%;m,
sitm=\E[3m,
sgr0=\E[0m,
smacs=\E(0,
smcup=\E[?1049h,
smir=\E[4h,
@ -188,11 +184,26 @@ st| simpleterm,
# XTerm extensions
rmxx=\E[29m,
smxx=\E[9m,
BE=\E[?2004h,
BD=\E[?2004l,
PS=\E[200~,
PE=\E[201~,
# disabled rep for now: causes some issues with older ncurses versions.
# rep=%p1%c\E[%p2%{1}%-%db,
# tmux extensions, see TERMINFO EXTENSIONS in tmux(1)
Se,
Ss,
Tc,
Ms=\E]52;%p1%s;%p2%s\007,
Se=\E[2 q,
Ss=\E[%p1%d q,
st| simpleterm,
use=st-mono,
colors#8,
setab=\E[4%p1%dm,
setaf=\E[3%p1%dm,
setb=\E[4%?%p1%{1}%=%t4%e%p1%{3}%=%t6%e%p1%{4}%=%t1%e%p1%{6}%=%t3%e%p1%d%;m,
setf=\E[3%?%p1%{1}%=%t4%e%p1%{3}%=%t6%e%p1%{4}%=%t1%e%p1%{6}%=%t3%e%p1%d%;m,
sgr=%?%p9%t\E(0%e\E(B%;\E[0%?%p6%t;1%;%?%p2%t;4%;%?%p1%p3%|%t;7%;%?%p4%t;5%;%?%p7%t;8%;m,
st-256color| simpleterm with 256 colors,
use=st,
@ -220,3 +231,13 @@ st-meta-256color| simpleterm with meta key and 256 colors,
smm=\E[?1034h,
rs2=\E[4l\E>\E[?1034h,
is2=\E[4l\E>\E[?1034h,
st-bs| simpleterm with backspace as backspace,
use=st,
kbs=\010,
kdch1=\177,
st-bs-256color| simpleterm with backspace as backspace and 256colors,
use=st-256color,
kbs=\010,
kdch1=\177,

3
win.h
View File

@ -30,9 +30,12 @@ void xdrawline(Line, int, int, int);
void xfinishdraw(void);
void xloadcols(void);
int xsetcolorname(int, const char *);
int xgetcolor(int, unsigned char *, unsigned char *, unsigned char *);
void xseticontitle(char *);
void xsettitle(char *);
int xsetcursor(int);
void xsetmode(int, unsigned int);
void xsetpointermotion(int);
void xsetsel(char *);
int xstartdraw(void);
void xximspot(int, int);

572
x.c
View File

File diff suppressed because it is too large Load Diff