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Sergey Silaev 2020-12-19 03:27:43 +03:00
parent 0d955b412c
commit 96aeb2dad0
20 changed files with 1250 additions and 607 deletions
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124
.Xdefaults
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!! Transparency (0-1):
st.alpha: 0.92
!! Set a default font and font size as below:
st.font: Monospace-11;
! st.termname: st-256color
! st.borderpx: 2
!! Set the background, foreground and cursor colors as below:
*.background: #282828
*.foreground: white
*.cursorColor: white
/* !! gruvbox: */
/* *.color0: #1d2021 */
/* *.color1: #cc241d */
/* *.color2: #98971a */
/* *.color3: #d79921 */
/* *.color4: #458588 */
/* *.color5: #b16286 */
/* *.color6: #689d6a */
/* *.color7: #a89984 */
/* *.color8: #928374 */
/* *.color9: #fb4934 */
/* *.color10: #b8bb26 */
/* *.color11: #fabd2f */
/* *.color12: #83a598 */
/* *.color13: #d3869b */
/* *.color14: #8ec07c */
/* *.color15: #ebdbb2 */
/* !! gruvbox light: */
/* *.color0: #fbf1c7 */
/* *.color1: #cc241d */
/* *.color2: #98971a */
/* *.color3: #d79921 */
/* *.color4: #458588 */
/* *.color5: #b16286 */
/* *.color6: #689d6a */
/* *.color7: #7c6f64 */
/* *.color8: #928374 */
/* *.color9: #9d0006 */
/* *.color10: #79740e */
/* *.color11: #b57614 */
/* *.color12: #076678 */
/* *.color13: #8f3f71 */
/* *.color14: #427b58 */
/* *.color15: #3c3836 */
/* !! brogrammer: */
/* *.foreground: #d6dbe5 */
/* *.background: #131313 */
/* *.color0: #1f1f1f */
/* *.color8: #d6dbe5 */
/* *.color1: #f81118 */
/* *.color9: #de352e */
/* *.color2: #2dc55e */
/* *.color10: #1dd361 */
/* *.color3: #ecba0f */
/* *.color11: #f3bd09 */
/* *.color4: #2a84d2 */
/* *.color12: #1081d6 */
/* *.color5: #4e5ab7 */
/* *.color13: #5350b9 */
/* *.color6: #1081d6 */
/* *.color14: #0f7ddb */
/* *.color7: #d6dbe5 */
/* *.color15: #ffffff */
/* *.colorBD: #d6dbe5 */
/* ! base16 */
/* *.color0: #181818 */
/* *.color1: #ab4642 */
/* *.color2: #a1b56c */
/* *.color3: #f7ca88 */
/* *.color4: #7cafc2 */
/* *.color5: #ba8baf */
/* *.color6: #86c1b9 */
/* *.color7: #d8d8d8 */
/* *.color8: #585858 */
/* *.color9: #ab4642 */
/* *.color10: #a1b56c */
/* *.color11: #f7ca88 */
/* *.color12: #7cafc2 */
/* *.color13: #ba8baf */
/* *.color14: #86c1b9 */
/* *.color15: #f8f8f8 */
/* !! solarized */
/* *.color0: #073642 */
/* *.color1: #dc322f */
/* *.color2: #859900 */
/* *.color3: #b58900 */
/* *.color4: #268bd2 */
/* *.color5: #d33682 */
/* *.color6: #2aa198 */
/* *.color7: #eee8d5 */
/* *.color9: #cb4b16 */
/* *.color8: #fdf6e3 */
/* *.color10: #586e75 */
/* *.color11: #657b83 */
/* *.color12: #839496 */
/* *.color13: #6c71c4 */
/* *.color14: #93a1a1 */
/* *.color15: #fdf6e3 */
/* !! xterm */
/* *.color0: #000000 */
/* *.color1: #cd0000 */
/* *.color2: #00cd00 */
/* *.color3: #cdcd00 */
/* *.color4: #0000cd */
/* *.color5: #cd00cd */
/* *.color6: #00cdcd */
/* *.color7: #e5e5e5 */
/* *.color8: #4d4d4d */
/* *.color9: #ff0000 */
/* *.color10: #00ff00 */
/* *.color11: #ffff00 */
/* *.color12: #0000ff */
/* *.color13: #ff00ff */
/* *.color14: #00ffff */
/* *.color15: #aabac8 */

3
.gitignore vendored
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st.o
x.o
*.tar.gz

250
FAQ Normal file
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## Why does st not handle utmp entries?
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!
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
terminfo. What you see is the current state of the “xterm compliance”.
* Some programs don’t complain about the lacking st description and default to
another terminal. In that case see the question about terminfo.
## How do I scroll back up?
* 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 patch 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?
Taken from the terminfo manpage:
If the terminal has a keypad that transmits codes when the keys
are pressed, this information can be given. Note that it is not
possible to handle terminals where the keypad only works in
local (this applies, for example, to the unshifted HP 2621 keys).
If the keypad can be set to transmit or not transmit, give these
codes as smkx and rmkx. Otherwise the keypad is assumed to
always transmit.
In the st case smkx=E[?1hE= and rmkx=E[?1lE>, so it is mandatory that
applications which want to test against keypad keys send these
sequences.
But buggy applications (like bash and irssi, for example) don't do this. A fast
solution for them is to use the following command:
$ printf '\033[?1h\033=' >/dev/tty
or
$ tput smkx
In the case of bash, readline is used. Readline has a different note in its
manpage about this issue:
enable-keypad (Off)
When set to On, readline will try to enable the
application keypad when it is called. Some systems
need this to enable arrow keys.
Adding this option to your .inputrc will fix the keypad problem for all
applications using readline.
If you are using zsh, then read the zsh FAQ
<http://zsh.sourceforge.net/FAQ/zshfaq03.html#l25>:
It should be noted that the O / [ confusion can occur with other keys
such as Home and End. Some systems let you query the key sequences
sent by these keys from the system's terminal database, terminfo.
Unfortunately, the key sequences given there typically apply to the
mode that is not the one zsh uses by default (it's the "application"
mode rather than the "raw" mode). Explaining the use of terminfo is
outside of the scope of this FAQ, but if you wish to use the key
sequences given there you can tell the line editor to turn on
"application" mode when it starts and turn it off when it stops:
function zle-line-init () { echoti smkx }
function zle-line-finish () { echoti rmkx }
zle -N zle-line-init
zle -N zle-line-finish
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
<http://pubs.opengroup.org/onlinepubs/9699919799/utilities/c99.html#tag_20_11_13>.
If you want to compile st for OpenBSD you have to remove -lrt from config.mk, and
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
<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
of this key. When ASCII was defined in 1968, communication
with computers was done using punched cards, or hardcopy
terminals (basically a typewriter machine connected with the
computer using a serial port). ASCII defines DELETE as 7F,
because, in punched-card terms, it means all the holes of the
card punched; it is thus a kind of 'physical delete'. In the
same way, the BACKSPACE key was a non-destructive backspace,
as on a typewriter. So, if you wanted to delete a character,
you had to BACKSPACE and then DELETE. Another use of BACKSPACE
was to type accented characters, for example 'a BACKSPACE `'.
The VT100 had no BACKSPACE key; it was generated using the
CONTROL key as another control character (CONTROL key sets to
0 b7 b6 b5, so it converts H (code 0x48) into BACKSPACE (code
0x08)), but it had a DELETE key in a similar position where
the BACKSPACE key is located today on common PC keyboards.
All the terminal emulators emulated the difference between
these keys correctly: the backspace key generated a BACKSPACE
(^H) and delete key generated a DELETE (^?).
But a problem arose when Linus Torvalds wrote Linux. Unlike
earlier terminals, the Linux virtual terminal (the terminal
emulator integrated in the kernel) returned a DELETE when
backspace was pressed, due to the VT100 having a DELETE key in
the same position. This created a lot of problems (see [1]
and [2]). Since Linux has become the king, a lot of terminal
emulators today generate a DELETE when the backspace key is
pressed in order to avoid problems with Linux. The result is
that the only way of generating a BACKSPACE on these systems
is by using CONTROL + H. (I also think that emacs had an
important point here because the CONTROL + H prefix is used
in emacs in some commands (help commands).)
From point of view of the kernel, you can change the key
for deleting a previous character with stty erase. When you
connect a real terminal into a machine you describe the type
of terminal, so getty configures the correct value of stty
erase for this terminal. In the case of terminal emulators,
however, you don't have any getty that can set the correct
value of stty erase, so you always get the default value.
For this reason, it is necessary to add 'stty erase ^H' to your
profile if you have changed the value of the backspace key.
Of course, another solution is for st itself to modify the
value of stty erase. I usually have the inverse problem:
when I connect to non-Unix machines, I have to press CONTROL +
h to get a BACKSPACE. The inverse problem occurs when a user
connects to my Unix machines from a different system with a
correct backspace key.
[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] 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.

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A STATEMENT ON LEGACY SUPPORT
In the terminal world there is much cruft that comes from old and unsup‐
ported terminals that inherit incompatible modes and escape sequences
which noone is able to know, except when he/she comes from that time and
developed a graphical vt100 emulator at that time.
One goal of st is to only support what is really needed. When you en‐
counter a sequence which you really need, implement it. But while you
are at it, do not add the other cruft you might encounter while sneek‐
ing at other terminal emulators. History has bloated them and there is
no real evidence that most of the sequences are used today.
Christoph Lohmann <20h@r-36.net>
2012-09-13T07:00:36.081271045+02:00

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LICENSE
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MIT/X Consortium License MIT/X Consortium License
© 2014-2018 Hiltjo Posthuma <hiltjo at codemadness dot org> © 2014-2020 Hiltjo Posthuma <hiltjo at codemadness dot org>
© 2018 Devin J. Pohly <djpohly at gmail dot com> © 2018 Devin J. Pohly <djpohly at gmail dot com>
© 2014-2017 Quentin Rameau <quinq at fifth dot space> © 2014-2017 Quentin Rameau <quinq at fifth dot space>
© 2009-2012 Aurélien APTEL <aurelien dot aptel at gmail dot com> © 2009-2012 Aurélien APTEL <aurelien dot aptel at gmail dot com>

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st - simple terminal
--------------------
st is a simple terminal emulator for X which sucks less.
Requirements
------------
In order to build st you need the Xlib header files.
Installation
------------
Edit config.mk to match your local setup (st is installed into
the /usr/local namespace by default).
Afterwards enter the following command to build and install st (if
necessary as root):
make clean install
Running st
----------
If you did not install st with make clean install, you must compile
the st terminfo entry with the following command:
tic -sx st.info
See the man page for additional details.
Credits
-------
Based on Aurélien APTEL <aurelien dot aptel at gmail dot com> bt source code.

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README.md
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# st - simple terminal emulator for X.
+ Default font: [Fira Code](https://github.com/tonsky/FiraCode)
+ Default theme: [Solarized](https://ethanschoonover.com/solarized/)
## Bindings
+ **Scrollback**: with `shift-↑/↓` or `shift-h/shift-j`
+ **Scrollback mouse**: `shift` while scrolling the mouse
+ **Change font size**:`ctrl+shift-↑/↓`
+ **Reset font size**: `ctrl+shifts-home` returns to default
+ **Copy/Paste text**: with `ctrl+shift-c` and `ctrl+shift+v` or `ctrl+shift-insert`
## Requirements
+ `make` tool for building
+ `libXft` library for fonts drawing
+ `Xlib` header files for interacting with an X server
+ `Fira Code` just default font, which you can change it in `config.h`
## Patches
+ st-solarized
+ st-scrollback
+ st-scrollback-mouse
+ alpha
## Simple installation
```
git clone https://github.com/ssilaev/st
cd st
sudo make install
```

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vt emulation
------------
* double-height support
code & interface
----------------
* add a simple way to do multiplexing
drawing
-------
* add diacritics support to xdraws()
* switch to a suckless font drawing library
* make the font cache simpler
* add better support for brightening of the upper colors
bugs
----
* fix shift up/down (shift selection in emacs)
* remove DEC test sequence when appropriate
misc
----
$ grep -nE 'XXX|TODO' st.c

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/* See LICENSE file for copyright and license details. */
/*
* appearance
*
* font: see http://freedesktop.org/software/fontconfig/fontconfig-user.html
*/
static char *font = "Liberation Mono:pixelsize=12:antialias=true:autohint=true";
static int borderpx = 2;
/*
* What program is execed by st depends of these precedence rules:
* 1: program passed with -e
* 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 */
char *vtiden = "\033[?6c";
/* Kerning / character bounding-box multipliers */
static float cwscale = 1.0;
static float chscale = 1.0;
/*
* word delimiter string
*
* More advanced example: L" `'\"()[]{}"
*/
wchar_t *worddelimiters = L" ";
/* selection timeouts (in milliseconds) */
static unsigned int doubleclicktimeout = 300;
static unsigned int tripleclicktimeout = 600;
/* alt screens */
int allowaltscreen = 1;
/* 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 = 8;
static double maxlatency = 33;
/*
* blinking timeout (set to 0 to disable blinking) for the terminal blinking
* attribute.
*/
static unsigned int blinktimeout = 800;
/*
* thickness of underline and bar cursors
*/
static unsigned int cursorthickness = 2;
/*
* bell volume. It must be a value between -100 and 100. Use 0 for disabling
* it
*/
static int bellvolume = 0;
/* default TERM value */
char *termname = "st-256color";
/*
* spaces per tab
*
* When you are changing this value, don't forget to adapt the »it« value in
* the st.info and appropriately install the st.info in the environment where
* you use this st version.
*
* it#$tabspaces,
*
* Secondly make sure your kernel is not expanding tabs. When running `stty
* -a` »tab0« should appear. You can tell the terminal to not expand tabs by
* running following command:
*
* stty tabs
*/
unsigned int tabspaces = 8;
/* Terminal colors (16 first used in escape sequence) */
static const char *colorname[] = {
/* 8 normal colors */
"black",
"red3",
"green3",
"yellow3",
"blue2",
"magenta3",
"cyan3",
"gray90",
/* 8 bright colors */
"gray50",
"red",
"green",
"yellow",
"#5c5cff",
"magenta",
"cyan",
"white",
[255] = 0,
/* more colors can be added after 255 to use with DefaultXX */
"#cccccc",
"#555555",
};
/*
* Default colors (colorname index)
* foreground, background, cursor, reverse cursor
*/
unsigned int defaultfg = 7;
unsigned int defaultbg = 0;
static unsigned int defaultcs = 256;
static unsigned int defaultrcs = 257;
/*
* Default shape of cursor
* 2: Block ("█")
* 4: Underline ("_")
* 6: Bar ("|")
* 7: Snowman ("☃")
*/
static unsigned int cursorshape = 2;
/*
* Default columns and rows numbers
*/
static unsigned int cols = 80;
static unsigned int rows = 24;
/*
* Default colour and shape of the mouse cursor
*/
static unsigned int mouseshape = XC_xterm;
static unsigned int mousefg = 7;
static unsigned int mousebg = 0;
/*
* Color used to display font attributes when fontconfig selected a font which
* doesn't match the ones requested.
*/
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[] = {
/* 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. */
#define MODKEY Mod1Mask
#define TERMMOD (ControlMask|ShiftMask)
static Shortcut shortcuts[] = {
/* mask keysym function argument */
{ XK_ANY_MOD, XK_Break, sendbreak, {.i = 0} },
{ ControlMask, XK_Print, toggleprinter, {.i = 0} },
{ ShiftMask, XK_Print, printscreen, {.i = 0} },
{ XK_ANY_MOD, XK_Print, printsel, {.i = 0} },
{ TERMMOD, XK_Prior, zoom, {.f = +1} },
{ TERMMOD, XK_Next, zoom, {.f = -1} },
{ TERMMOD, XK_Home, zoomreset, {.f = 0} },
{ 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} },
};
/*
* Special keys (change & recompile st.info accordingly)
*
* Mask value:
* * Use XK_ANY_MOD to match the key no matter modifiers state
* * Use XK_NO_MOD to match the key alone (no modifiers)
* appkey value:
* * 0: no value
* * > 0: keypad application mode enabled
* * = 2: term.numlock = 1
* * < 0: keypad application mode disabled
* appcursor value:
* * 0: no value
* * > 0: cursor application mode enabled
* * < 0: cursor application mode 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
* position for a key.
*/
/*
* If you want keys other than the X11 function keys (0xFD00 - 0xFFFF)
* to be mapped below, add them to this array.
*/
static KeySym mappedkeys[] = { -1 };
/*
* State bits to ignore when matching key or button events. By default,
* numlock (Mod2Mask) and keyboard layout (XK_SWITCH_MOD) are ignored.
*/
static uint ignoremod = Mod2Mask|XK_SWITCH_MOD;
/*
* This is the huge key array which defines all compatibility to the Linux
* world. Please decide about changes wisely.
*/
static Key key[] = {
/* keysym mask string appkey appcursor */
{ XK_KP_Home, ShiftMask, "\033[2J", 0, -1},
{ XK_KP_Home, ShiftMask, "\033[1;2H", 0, +1},
{ XK_KP_Home, XK_ANY_MOD, "\033[H", 0, -1},
{ XK_KP_Home, XK_ANY_MOD, "\033[1~", 0, +1},
{ XK_KP_Up, XK_ANY_MOD, "\033Ox", +1, 0},
{ XK_KP_Up, XK_ANY_MOD, "\033[A", 0, -1},
{ XK_KP_Up, XK_ANY_MOD, "\033OA", 0, +1},
{ XK_KP_Down, XK_ANY_MOD, "\033Or", +1, 0},
{ XK_KP_Down, XK_ANY_MOD, "\033[B", 0, -1},
{ XK_KP_Down, XK_ANY_MOD, "\033OB", 0, +1},
{ XK_KP_Left, XK_ANY_MOD, "\033Ot", +1, 0},
{ XK_KP_Left, XK_ANY_MOD, "\033[D", 0, -1},
{ XK_KP_Left, XK_ANY_MOD, "\033OD", 0, +1},
{ XK_KP_Right, XK_ANY_MOD, "\033Ov", +1, 0},
{ XK_KP_Right, XK_ANY_MOD, "\033[C", 0, -1},
{ XK_KP_Right, XK_ANY_MOD, "\033OC", 0, +1},
{ XK_KP_Prior, ShiftMask, "\033[5;2~", 0, 0},
{ XK_KP_Prior, XK_ANY_MOD, "\033[5~", 0, 0},
{ XK_KP_Begin, XK_ANY_MOD, "\033[E", 0, 0},
{ XK_KP_End, ControlMask, "\033[J", -1, 0},
{ XK_KP_End, ControlMask, "\033[1;5F", +1, 0},
{ XK_KP_End, ShiftMask, "\033[K", -1, 0},
{ XK_KP_End, ShiftMask, "\033[1;2F", +1, 0},
{ XK_KP_End, XK_ANY_MOD, "\033[4~", 0, 0},
{ XK_KP_Next, ShiftMask, "\033[6;2~", 0, 0},
{ XK_KP_Next, XK_ANY_MOD, "\033[6~", 0, 0},
{ XK_KP_Insert, ShiftMask, "\033[2;2~", +1, 0},
{ XK_KP_Insert, ShiftMask, "\033[4l", -1, 0},
{ XK_KP_Insert, ControlMask, "\033[L", -1, 0},
{ XK_KP_Insert, ControlMask, "\033[2;5~", +1, 0},
{ XK_KP_Insert, XK_ANY_MOD, "\033[4h", -1, 0},
{ XK_KP_Insert, XK_ANY_MOD, "\033[2~", +1, 0},
{ XK_KP_Delete, ControlMask, "\033[M", -1, 0},
{ XK_KP_Delete, ControlMask, "\033[3;5~", +1, 0},
{ XK_KP_Delete, ShiftMask, "\033[2K", -1, 0},
{ XK_KP_Delete, ShiftMask, "\033[3;2~", +1, 0},
{ XK_KP_Delete, XK_ANY_MOD, "\033[P", -1, 0},
{ XK_KP_Delete, XK_ANY_MOD, "\033[3~", +1, 0},
{ XK_KP_Multiply, XK_ANY_MOD, "\033Oj", +2, 0},
{ XK_KP_Add, XK_ANY_MOD, "\033Ok", +2, 0},
{ XK_KP_Enter, XK_ANY_MOD, "\033OM", +2, 0},
{ XK_KP_Enter, XK_ANY_MOD, "\r", -1, 0},
{ XK_KP_Subtract, XK_ANY_MOD, "\033Om", +2, 0},
{ XK_KP_Decimal, XK_ANY_MOD, "\033On", +2, 0},
{ XK_KP_Divide, XK_ANY_MOD, "\033Oo", +2, 0},
{ XK_KP_0, XK_ANY_MOD, "\033Op", +2, 0},
{ XK_KP_1, XK_ANY_MOD, "\033Oq", +2, 0},
{ XK_KP_2, XK_ANY_MOD, "\033Or", +2, 0},
{ XK_KP_3, XK_ANY_MOD, "\033Os", +2, 0},
{ XK_KP_4, XK_ANY_MOD, "\033Ot", +2, 0},
{ XK_KP_5, XK_ANY_MOD, "\033Ou", +2, 0},
{ XK_KP_6, XK_ANY_MOD, "\033Ov", +2, 0},
{ XK_KP_7, XK_ANY_MOD, "\033Ow", +2, 0},
{ XK_KP_8, XK_ANY_MOD, "\033Ox", +2, 0},
{ XK_KP_9, XK_ANY_MOD, "\033Oy", +2, 0},
{ XK_Up, ShiftMask, "\033[1;2A", 0, 0},
{ XK_Up, Mod1Mask, "\033[1;3A", 0, 0},
{ XK_Up, ShiftMask|Mod1Mask,"\033[1;4A", 0, 0},
{ XK_Up, ControlMask, "\033[1;5A", 0, 0},
{ XK_Up, ShiftMask|ControlMask,"\033[1;6A", 0, 0},
{ XK_Up, ControlMask|Mod1Mask,"\033[1;7A", 0, 0},
{ XK_Up,ShiftMask|ControlMask|Mod1Mask,"\033[1;8A", 0, 0},
{ XK_Up, XK_ANY_MOD, "\033[A", 0, -1},
{ XK_Up, XK_ANY_MOD, "\033OA", 0, +1},
{ XK_Down, ShiftMask, "\033[1;2B", 0, 0},
{ XK_Down, Mod1Mask, "\033[1;3B", 0, 0},
{ XK_Down, ShiftMask|Mod1Mask,"\033[1;4B", 0, 0},
{ XK_Down, ControlMask, "\033[1;5B", 0, 0},
{ XK_Down, ShiftMask|ControlMask,"\033[1;6B", 0, 0},
{ XK_Down, ControlMask|Mod1Mask,"\033[1;7B", 0, 0},
{ XK_Down,ShiftMask|ControlMask|Mod1Mask,"\033[1;8B",0, 0},
{ XK_Down, XK_ANY_MOD, "\033[B", 0, -1},
{ XK_Down, XK_ANY_MOD, "\033OB", 0, +1},
{ XK_Left, ShiftMask, "\033[1;2D", 0, 0},
{ XK_Left, Mod1Mask, "\033[1;3D", 0, 0},
{ XK_Left, ShiftMask|Mod1Mask,"\033[1;4D", 0, 0},
{ XK_Left, ControlMask, "\033[1;5D", 0, 0},
{ XK_Left, ShiftMask|ControlMask,"\033[1;6D", 0, 0},
{ XK_Left, ControlMask|Mod1Mask,"\033[1;7D", 0, 0},
{ XK_Left,ShiftMask|ControlMask|Mod1Mask,"\033[1;8D",0, 0},
{ XK_Left, XK_ANY_MOD, "\033[D", 0, -1},
{ XK_Left, XK_ANY_MOD, "\033OD", 0, +1},
{ XK_Right, ShiftMask, "\033[1;2C", 0, 0},
{ XK_Right, Mod1Mask, "\033[1;3C", 0, 0},
{ XK_Right, ShiftMask|Mod1Mask,"\033[1;4C", 0, 0},
{ XK_Right, ControlMask, "\033[1;5C", 0, 0},
{ XK_Right, ShiftMask|ControlMask,"\033[1;6C", 0, 0},
{ XK_Right, ControlMask|Mod1Mask,"\033[1;7C", 0, 0},
{ XK_Right,ShiftMask|ControlMask|Mod1Mask,"\033[1;8C",0, 0},
{ XK_Right, XK_ANY_MOD, "\033[C", 0, -1},
{ XK_Right, XK_ANY_MOD, "\033OC", 0, +1},
{ XK_ISO_Left_Tab, ShiftMask, "\033[Z", 0, 0},
{ XK_Return, Mod1Mask, "\033\r", 0, 0},
{ XK_Return, XK_ANY_MOD, "\r", 0, 0},
{ XK_Insert, ShiftMask, "\033[4l", -1, 0},
{ XK_Insert, ShiftMask, "\033[2;2~", +1, 0},
{ XK_Insert, ControlMask, "\033[L", -1, 0},
{ XK_Insert, ControlMask, "\033[2;5~", +1, 0},
{ XK_Insert, XK_ANY_MOD, "\033[4h", -1, 0},
{ XK_Insert, XK_ANY_MOD, "\033[2~", +1, 0},
{ XK_Delete, ControlMask, "\033[M", -1, 0},
{ XK_Delete, ControlMask, "\033[3;5~", +1, 0},
{ XK_Delete, ShiftMask, "\033[2K", -1, 0},
{ XK_Delete, ShiftMask, "\033[3;2~", +1, 0},
{ XK_Delete, XK_ANY_MOD, "\033[P", -1, 0},
{ XK_Delete, XK_ANY_MOD, "\033[3~", +1, 0},
{ XK_BackSpace, XK_NO_MOD, "\177", 0, 0},
{ XK_BackSpace, Mod1Mask, "\033\177", 0, 0},
{ XK_Home, ShiftMask, "\033[2J", 0, -1},
{ XK_Home, ShiftMask, "\033[1;2H", 0, +1},
{ XK_Home, XK_ANY_MOD, "\033[H", 0, -1},
{ XK_Home, XK_ANY_MOD, "\033[1~", 0, +1},
{ XK_End, ControlMask, "\033[J", -1, 0},
{ XK_End, ControlMask, "\033[1;5F", +1, 0},
{ XK_End, ShiftMask, "\033[K", -1, 0},
{ XK_End, ShiftMask, "\033[1;2F", +1, 0},
{ XK_End, XK_ANY_MOD, "\033[4~", 0, 0},
{ XK_Prior, ControlMask, "\033[5;5~", 0, 0},
{ XK_Prior, ShiftMask, "\033[5;2~", 0, 0},
{ XK_Prior, XK_ANY_MOD, "\033[5~", 0, 0},
{ XK_Next, ControlMask, "\033[6;5~", 0, 0},
{ XK_Next, ShiftMask, "\033[6;2~", 0, 0},
{ XK_Next, XK_ANY_MOD, "\033[6~", 0, 0},
{ XK_F1, XK_NO_MOD, "\033OP" , 0, 0},
{ XK_F1, /* F13 */ ShiftMask, "\033[1;2P", 0, 0},
{ XK_F1, /* F25 */ ControlMask, "\033[1;5P", 0, 0},
{ XK_F1, /* F37 */ Mod4Mask, "\033[1;6P", 0, 0},
{ XK_F1, /* F49 */ Mod1Mask, "\033[1;3P", 0, 0},
{ XK_F1, /* F61 */ Mod3Mask, "\033[1;4P", 0, 0},
{ XK_F2, XK_NO_MOD, "\033OQ" , 0, 0},
{ XK_F2, /* F14 */ ShiftMask, "\033[1;2Q", 0, 0},
{ XK_F2, /* F26 */ ControlMask, "\033[1;5Q", 0, 0},
{ XK_F2, /* F38 */ Mod4Mask, "\033[1;6Q", 0, 0},
{ XK_F2, /* F50 */ Mod1Mask, "\033[1;3Q", 0, 0},
{ XK_F2, /* F62 */ Mod3Mask, "\033[1;4Q", 0, 0},
{ XK_F3, XK_NO_MOD, "\033OR" , 0, 0},
{ XK_F3, /* F15 */ ShiftMask, "\033[1;2R", 0, 0},
{ XK_F3, /* F27 */ ControlMask, "\033[1;5R", 0, 0},
{ XK_F3, /* F39 */ Mod4Mask, "\033[1;6R", 0, 0},
{ XK_F3, /* F51 */ Mod1Mask, "\033[1;3R", 0, 0},
{ XK_F3, /* F63 */ Mod3Mask, "\033[1;4R", 0, 0},
{ XK_F4, XK_NO_MOD, "\033OS" , 0, 0},
{ XK_F4, /* F16 */ ShiftMask, "\033[1;2S", 0, 0},
{ XK_F4, /* F28 */ ControlMask, "\033[1;5S", 0, 0},
{ XK_F4, /* F40 */ Mod4Mask, "\033[1;6S", 0, 0},
{ XK_F4, /* F52 */ Mod1Mask, "\033[1;3S", 0, 0},
{ XK_F5, XK_NO_MOD, "\033[15~", 0, 0},
{ XK_F5, /* F17 */ ShiftMask, "\033[15;2~", 0, 0},
{ XK_F5, /* F29 */ ControlMask, "\033[15;5~", 0, 0},
{ XK_F5, /* F41 */ Mod4Mask, "\033[15;6~", 0, 0},
{ XK_F5, /* F53 */ Mod1Mask, "\033[15;3~", 0, 0},
{ XK_F6, XK_NO_MOD, "\033[17~", 0, 0},
{ XK_F6, /* F18 */ ShiftMask, "\033[17;2~", 0, 0},
{ XK_F6, /* F30 */ ControlMask, "\033[17;5~", 0, 0},
{ XK_F6, /* F42 */ Mod4Mask, "\033[17;6~", 0, 0},
{ XK_F6, /* F54 */ Mod1Mask, "\033[17;3~", 0, 0},
{ XK_F7, XK_NO_MOD, "\033[18~", 0, 0},
{ XK_F7, /* F19 */ ShiftMask, "\033[18;2~", 0, 0},
{ XK_F7, /* F31 */ ControlMask, "\033[18;5~", 0, 0},
{ XK_F7, /* F43 */ Mod4Mask, "\033[18;6~", 0, 0},
{ XK_F7, /* F55 */ Mod1Mask, "\033[18;3~", 0, 0},
{ XK_F8, XK_NO_MOD, "\033[19~", 0, 0},
{ XK_F8, /* F20 */ ShiftMask, "\033[19;2~", 0, 0},
{ XK_F8, /* F32 */ ControlMask, "\033[19;5~", 0, 0},
{ XK_F8, /* F44 */ Mod4Mask, "\033[19;6~", 0, 0},
{ XK_F8, /* F56 */ Mod1Mask, "\033[19;3~", 0, 0},
{ XK_F9, XK_NO_MOD, "\033[20~", 0, 0},
{ XK_F9, /* F21 */ ShiftMask, "\033[20;2~", 0, 0},
{ XK_F9, /* F33 */ ControlMask, "\033[20;5~", 0, 0},
{ XK_F9, /* F45 */ Mod4Mask, "\033[20;6~", 0, 0},
{ XK_F9, /* F57 */ Mod1Mask, "\033[20;3~", 0, 0},
{ XK_F10, XK_NO_MOD, "\033[21~", 0, 0},
{ XK_F10, /* F22 */ ShiftMask, "\033[21;2~", 0, 0},
{ XK_F10, /* F34 */ ControlMask, "\033[21;5~", 0, 0},
{ XK_F10, /* F46 */ Mod4Mask, "\033[21;6~", 0, 0},
{ XK_F10, /* F58 */ Mod1Mask, "\033[21;3~", 0, 0},
{ XK_F11, XK_NO_MOD, "\033[23~", 0, 0},
{ XK_F11, /* F23 */ ShiftMask, "\033[23;2~", 0, 0},
{ XK_F11, /* F35 */ ControlMask, "\033[23;5~", 0, 0},
{ XK_F11, /* F47 */ Mod4Mask, "\033[23;6~", 0, 0},
{ XK_F11, /* F59 */ Mod1Mask, "\033[23;3~", 0, 0},
{ XK_F12, XK_NO_MOD, "\033[24~", 0, 0},
{ XK_F12, /* F24 */ ShiftMask, "\033[24;2~", 0, 0},
{ XK_F12, /* F36 */ ControlMask, "\033[24;5~", 0, 0},
{ XK_F12, /* F48 */ Mod4Mask, "\033[24;6~", 0, 0},
{ XK_F12, /* F60 */ Mod1Mask, "\033[24;3~", 0, 0},
{ XK_F13, XK_NO_MOD, "\033[1;2P", 0, 0},
{ XK_F14, XK_NO_MOD, "\033[1;2Q", 0, 0},
{ XK_F15, XK_NO_MOD, "\033[1;2R", 0, 0},
{ XK_F16, XK_NO_MOD, "\033[1;2S", 0, 0},
{ XK_F17, XK_NO_MOD, "\033[15;2~", 0, 0},
{ XK_F18, XK_NO_MOD, "\033[17;2~", 0, 0},
{ XK_F19, XK_NO_MOD, "\033[18;2~", 0, 0},
{ XK_F20, XK_NO_MOD, "\033[19;2~", 0, 0},
{ XK_F21, XK_NO_MOD, "\033[20;2~", 0, 0},
{ XK_F22, XK_NO_MOD, "\033[21;2~", 0, 0},
{ XK_F23, XK_NO_MOD, "\033[23;2~", 0, 0},
{ XK_F24, XK_NO_MOD, "\033[24;2~", 0, 0},
{ XK_F25, XK_NO_MOD, "\033[1;5P", 0, 0},
{ XK_F26, XK_NO_MOD, "\033[1;5Q", 0, 0},
{ XK_F27, XK_NO_MOD, "\033[1;5R", 0, 0},
{ XK_F28, XK_NO_MOD, "\033[1;5S", 0, 0},
{ XK_F29, XK_NO_MOD, "\033[15;5~", 0, 0},
{ XK_F30, XK_NO_MOD, "\033[17;5~", 0, 0},
{ XK_F31, XK_NO_MOD, "\033[18;5~", 0, 0},
{ XK_F32, XK_NO_MOD, "\033[19;5~", 0, 0},
{ XK_F33, XK_NO_MOD, "\033[20;5~", 0, 0},
{ XK_F34, XK_NO_MOD, "\033[21;5~", 0, 0},
{ XK_F35, XK_NO_MOD, "\033[23;5~", 0, 0},
};
/*
* Selection types' masks.
* Use the same masks as usual.
* Button1Mask is always unset, to make masks match between ButtonPress.
* ButtonRelease and MotionNotify.
* If no match is found, regular selection is used.
*/
static uint selmasks[] = {
[SEL_RECTANGULAR] = Mod1Mask,
};
/*
* Printable characters in ASCII, used to estimate the advance width
* of single wide characters.
*/
static char ascii_printable[] =
" !\"#$%&'()*+,-./0123456789:;<=>?"
"@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_"
"`abcdefghijklmnopqrstuvwxyz{|}~";

129
config.h
View file

@ -5,19 +5,21 @@
* *
* font: see http://freedesktop.org/software/fontconfig/fontconfig-user.html * font: see http://freedesktop.org/software/fontconfig/fontconfig-user.html
*/ */
static char *font = "FiraCode:pixelsize=16:antialias=true:autohint=true"; static char *font = "Liberation Mono:pixelsize=12:antialias=true:autohint=true";
static int borderpx = 2; static int borderpx = 2;
/* /*
* What program is execed by st depends of these precedence rules: * What program is execed by st depends of these precedence rules:
* 1: program passed with -e * 1: program passed with -e
* 2: utmp option * 2: scroll and/or utmp
* 3: SHELL environment variable * 3: SHELL environment variable
* 4: value of shell in /etc/passwd * 4: value of shell in /etc/passwd
* 5: value of shell in config.h * 5: value of shell in config.h
*/ */
static char *shell = "/bin/sh"; static char *shell = "/bin/sh";
char *utmp = NULL; 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"; char *stty_args = "stty raw pass8 nl -echo -iexten -cstopb 38400";
/* identification sequence returned in DA and DECID */ /* identification sequence returned in DA and DECID */
@ -30,9 +32,9 @@ static float chscale = 1.0;
/* /*
* word delimiter string * word delimiter string
* *
* More advanced example: " `'\"()[]{}" * More advanced example: L" `'\"()[]{}"
*/ */
char *worddelimiters = " "; wchar_t *worddelimiters = L" ";
/* selection timeouts (in milliseconds) */ /* selection timeouts (in milliseconds) */
static unsigned int doubleclicktimeout = 300; static unsigned int doubleclicktimeout = 300;
@ -41,9 +43,18 @@ static unsigned int tripleclicktimeout = 600;
/* alt screens */ /* alt screens */
int allowaltscreen = 1; int allowaltscreen = 1;
/* frames per second st should at maximum draw to the screen */ /* allow certain non-interactive (insecure) window operations such as:
static unsigned int xfps = 120; setting the clipboard text */
static unsigned int actionfps = 30; 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 = 8;
static double maxlatency = 33;
/* /*
* blinking timeout (set to 0 to disable blinking) for the terminal blinking * blinking timeout (set to 0 to disable blinking) for the terminal blinking
@ -82,28 +93,33 @@ char *termname = "st-256color";
*/ */
unsigned int tabspaces = 8; unsigned int tabspaces = 8;
/* bg opacity */
float alpha = 0.9;
/* Terminal colors (16 first used in escape sequence) */ /* Terminal colors (16 first used in escape sequence) */
static const char *colorname[] = { static const char *colorname[] = {
/* solarized dark */ /* 8 normal colors */
"#073642", /* 0: black */ "black",
"#dc322f", /* 1: red */ "red3",
"#859900", /* 2: green */ "green3",
"#b58900", /* 3: yellow */ "yellow3",
"#268bd2", /* 4: blue */ "blue2",
"#d33682", /* 5: magenta */ "magenta3",
"#2aa198", /* 6: cyan */ "cyan3",
"#eee8d5", /* 7: white */ "gray90",
"#002b36", /* 8: brblack */
"#cb4b16", /* 9: brred */ /* 8 bright colors */
"#586e75", /* 10: brgreen */ "gray50",
"#657b83", /* 11: bryellow */ "red",
"#839496", /* 12: brblue */ "green",
"#6c71c4", /* 13: brmagenta*/ "yellow",
"#93a1a1", /* 14: brcyan */ "#5c5cff",
"#fdf6e3", /* 15: brwhite */ "magenta",
"cyan",
"white",
[255] = 0,
/* more colors can be added after 255 to use with DefaultXX */
"#cccccc",
"#555555",
}; };
@ -111,10 +127,10 @@ static const char *colorname[] = {
* Default colors (colorname index) * Default colors (colorname index)
* foreground, background, cursor, reverse cursor * foreground, background, cursor, reverse cursor
*/ */
unsigned int defaultfg = 12; unsigned int defaultfg = 7;
unsigned int defaultbg = 8; unsigned int defaultbg = 0;
static unsigned int defaultcs = 14; static unsigned int defaultcs = 256;
static unsigned int defaultrcs = 15; static unsigned int defaultrcs = 257;
/* /*
* Default shape of cursor * Default shape of cursor
@ -129,8 +145,8 @@ static unsigned int cursorshape = 2;
* Default columns and rows numbers * Default columns and rows numbers
*/ */
static unsigned int cols = 90; static unsigned int cols = 80;
static unsigned int rows = 28; static unsigned int rows = 24;
/* /*
* Default colour and shape of the mouse cursor * Default colour and shape of the mouse cursor
@ -145,48 +161,44 @@ static unsigned int mousebg = 0;
*/ */
static unsigned int defaultattr = 11; 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. * Internal mouse shortcuts.
* Beware that overloading Button1 will disable the selection. * Beware that overloading Button1 will disable the selection.
*/ */
static MouseShortcut mshortcuts[] = { static MouseShortcut mshortcuts[] = {
/* button mask string */ /* mask button function argument release */
{ Button4, XK_NO_MOD, "\031" }, { XK_ANY_MOD, Button2, selpaste, {.i = 0}, 1 },
{ Button5, XK_NO_MOD, "\005" }, { 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. */ /* Internal keyboard shortcuts. */
#define MODKEY Mod1Mask #define MODKEY Mod1Mask
#define TERMMOD (ControlMask|ShiftMask) #define TERMMOD (ControlMask|ShiftMask)
MouseKey mkeys[] = {
/* button mask function argument */
{ Button4, ShiftMask, kscrollup, {.i = 1} },
{ Button5, ShiftMask, kscrolldown, {.i = 1} },
{ Button4, MODKEY, kscrollup, {.i = 1} },
{ Button5, MODKEY, kscrolldown, {.i = 1} },
{ Button4, TERMMOD, zoom, {.f = +1} },
{ Button5, TERMMOD, zoom, {.f = -1} },
};
static Shortcut shortcuts[] = { static Shortcut shortcuts[] = {
/* mask keysym function argument */ /* mask keysym function argument */
{ XK_ANY_MOD, XK_Break, sendbreak, {.i = 0} }, { XK_ANY_MOD, XK_Break, sendbreak, {.i = 0} },
{ ControlMask, XK_Print, toggleprinter, {.i = 0} }, { ControlMask, XK_Print, toggleprinter, {.i = 0} },
{ ShiftMask, XK_Print, printscreen, {.i = 0} }, { ShiftMask, XK_Print, printscreen, {.i = 0} },
{ XK_ANY_MOD, XK_Print, printsel, {.i = 0} }, { XK_ANY_MOD, XK_Print, printsel, {.i = 0} },
{ TERMMOD, XK_Up, zoom, {.f = +1} }, { TERMMOD, XK_Prior, zoom, {.f = +1} },
{ TERMMOD, XK_Down, zoom, {.f = -1} }, { TERMMOD, XK_Next, zoom, {.f = -1} },
{ TERMMOD, XK_Home, zoomreset, {.f = 0} }, { TERMMOD, XK_Home, zoomreset, {.f = 0} },
{ TERMMOD, XK_C, clipcopy, {.i = 0} }, { TERMMOD, XK_C, clipcopy, {.i = 0} },
{ TERMMOD, XK_V, clippaste, {.i = 0} }, { TERMMOD, XK_V, clippaste, {.i = 0} },
{ TERMMOD, XK_Y, selpaste, {.i = 0} }, { TERMMOD, XK_Y, selpaste, {.i = 0} },
{ TERMMOD, XK_Insert, selpaste, {.i = 0} }, { ShiftMask, XK_Insert, selpaste, {.i = 0} },
{ TERMMOD, XK_Num_Lock, numlock, {.i = 0} }, { TERMMOD, XK_Num_Lock, numlock, {.i = 0} },
{ ShiftMask, XK_Up, kscrollup, {.i = -1} },
{ ShiftMask, XK_Down, kscrolldown, {.i = -1} },
{ ShiftMask, XK_k, kscrollup, {.i = -1} },
{ ShiftMask, XK_j, kscrolldown, {.i = -1} },
}; };
/* /*
@ -204,10 +216,6 @@ static Shortcut shortcuts[] = {
* * 0: no value * * 0: no value
* * > 0: cursor application mode enabled * * > 0: cursor application mode enabled
* * < 0: cursor application mode disabled * * < 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 * 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 * this table sequentially, so any XK_ANY_MOD must be in the last
@ -226,13 +234,6 @@ static KeySym mappedkeys[] = { -1 };
*/ */
static uint ignoremod = Mod2Mask|XK_SWITCH_MOD; 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 * This is the huge key array which defines all compatibility to the Linux
* world. Please decide about changes wisely. * world. Please decide about changes wisely.

8
config.mk
View file

@ -1,5 +1,5 @@
# st version # st version
VERSION = 0.8.2 VERSION = 0.8.4
# Customize below to fit your system # Customize below to fit your system
@ -16,7 +16,7 @@ PKG_CONFIG = pkg-config
INCS = -I$(X11INC) \ INCS = -I$(X11INC) \
`$(PKG_CONFIG) --cflags fontconfig` \ `$(PKG_CONFIG) --cflags fontconfig` \
`$(PKG_CONFIG) --cflags freetype2` `$(PKG_CONFIG) --cflags freetype2`
LIBS = -L$(X11LIB) -lm -lrt -lX11 -lutil -lXft -lXrender\ LIBS = -L$(X11LIB) -lm -lrt -lX11 -lutil -lXft \
`$(PKG_CONFIG) --libs fontconfig` \ `$(PKG_CONFIG) --libs fontconfig` \
`$(PKG_CONFIG) --libs freetype2` `$(PKG_CONFIG) --libs freetype2`
@ -28,8 +28,8 @@ STLDFLAGS = $(LIBS) $(LDFLAGS)
# OpenBSD: # OpenBSD:
#CPPFLAGS = -DVERSION=\"$(VERSION)\" -D_XOPEN_SOURCE=600 -D_BSD_SOURCE #CPPFLAGS = -DVERSION=\"$(VERSION)\" -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
#LIBS = -L$(X11LIB) -lm -lX11 -lutil -lXft \ #LIBS = -L$(X11LIB) -lm -lX11 -lutil -lXft \
# `pkg-config --libs fontconfig` \ # `$(PKG_CONFIG) --libs fontconfig` \
# `pkg-config --libs freetype2` # `$(PKG_CONFIG) --libs freetype2`
# compiler and linker # compiler and linker
# CC = c99 # CC = c99

BIN
st Executable file
View file

Binary file not shown.

3
st.1
View file

@ -170,7 +170,8 @@ See the LICENSE file for the terms of redistribution.
.SH SEE ALSO .SH SEE ALSO
.BR tabbed (1), .BR tabbed (1),
.BR utmp (1), .BR utmp (1),
.BR stty (1) .BR stty (1),
.BR scroll (1)
.SH BUGS .SH BUGS
See the TODO file in the distribution. See the TODO file in the distribution.

316
st.c
View file

@ -35,17 +35,13 @@
#define ESC_ARG_SIZ 16 #define ESC_ARG_SIZ 16
#define STR_BUF_SIZ ESC_BUF_SIZ #define STR_BUF_SIZ ESC_BUF_SIZ
#define STR_ARG_SIZ ESC_ARG_SIZ #define STR_ARG_SIZ ESC_ARG_SIZ
#define HISTSIZE 2000
/* macros */ /* macros */
#define IS_SET(flag) ((term.mode & (flag)) != 0) #define IS_SET(flag) ((term.mode & (flag)) != 0)
#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 ISCONTROLC1(c) (BETWEEN(c, 0x80, 0x9f))
#define ISCONTROL(c) (ISCONTROLC0(c) || ISCONTROLC1(c)) #define ISCONTROL(c) (ISCONTROLC0(c) || ISCONTROLC1(c))
#define ISDELIM(u) (utf8strchr(worddelimiters, u) != NULL) #define ISDELIM(u) (u && wcschr(worddelimiters, u))
#define TLINE(y) ((y) < term.scr ? term.hist[((y) + term.histi - \
term.scr + HISTSIZE + 1) % HISTSIZE] : \
term.line[(y) - term.scr])
enum term_mode { enum term_mode {
MODE_WRAP = 1 << 0, MODE_WRAP = 1 << 0,
@ -55,7 +51,6 @@ enum term_mode {
MODE_ECHO = 1 << 4, MODE_ECHO = 1 << 4,
MODE_PRINT = 1 << 5, MODE_PRINT = 1 << 5,
MODE_UTF8 = 1 << 6, MODE_UTF8 = 1 << 6,
MODE_SIXEL = 1 << 7,
}; };
enum cursor_movement { enum cursor_movement {
@ -82,12 +77,11 @@ enum charset {
enum escape_state { enum escape_state {
ESC_START = 1, ESC_START = 1,
ESC_CSI = 2, ESC_CSI = 2,
ESC_STR = 4, /* OSC, PM, APC */ ESC_STR = 4, /* DCS, OSC, PM, APC */
ESC_ALTCHARSET = 8, ESC_ALTCHARSET = 8,
ESC_STR_END = 16, /* a final string was encountered */ ESC_STR_END = 16, /* a final string was encountered */
ESC_TEST = 32, /* Enter in test mode */ ESC_TEST = 32, /* Enter in test mode */
ESC_UTF8 = 64, ESC_UTF8 = 64,
ESC_DCS =128,
}; };
typedef struct { typedef struct {
@ -121,9 +115,6 @@ typedef struct {
int col; /* nb col */ int col; /* nb col */
Line *line; /* screen */ Line *line; /* screen */
Line *alt; /* alternate screen */ Line *alt; /* alternate screen */
Line hist[HISTSIZE]; /* history buffer */
int histi; /* history index */
int scr; /* scroll back */
int *dirty; /* dirtyness of lines */ int *dirty; /* dirtyness of lines */
TCursor c; /* cursor */ TCursor c; /* cursor */
int ocx; /* old cursor col */ int ocx; /* old cursor col */
@ -136,13 +127,14 @@ typedef struct {
int charset; /* current charset */ int charset; /* current charset */
int icharset; /* selected charset for sequence */ int icharset; /* selected charset for sequence */
int *tabs; int *tabs;
Rune lastc; /* last printed char outside of sequence, 0 if control */
} Term; } Term;
/* CSI Escape sequence structs */ /* CSI Escape sequence structs */
/* ESC '[' [[ [<priv>] <arg> [;]] <mode> [<mode>]] */ /* ESC '[' [[ [<priv>] <arg> [;]] <mode> [<mode>]] */
typedef struct { typedef struct {
char buf[ESC_BUF_SIZ]; /* raw string */ char buf[ESC_BUF_SIZ]; /* raw string */
int len; /* raw string length */ size_t len; /* raw string length */
char priv; char priv;
int arg[ESC_ARG_SIZ]; int arg[ESC_ARG_SIZ];
int narg; /* nb of args */ int narg; /* nb of args */
@ -153,8 +145,9 @@ typedef struct {
/* ESC type [[ [<priv>] <arg> [;]] <mode>] ESC '\' */ /* ESC type [[ [<priv>] <arg> [;]] <mode>] ESC '\' */
typedef struct { typedef struct {
char type; /* ESC type ... */ char type; /* ESC type ... */
char buf[STR_BUF_SIZ]; /* raw string */ char *buf; /* allocated raw string */
int len; /* raw string length */ size_t siz; /* allocation size */
size_t len; /* raw string length */
char *args[STR_ARG_SIZ]; char *args[STR_ARG_SIZ];
int narg; /* nb of args */ int narg; /* nb of args */
} STREscape; } STREscape;
@ -191,8 +184,8 @@ static void tnewline(int);
static void tputtab(int); static void tputtab(int);
static void tputc(Rune); static void tputc(Rune);
static void treset(void); static void treset(void);
static void tscrollup(int, int, int); static void tscrollup(int, int);
static void tscrolldown(int, int, int); static void tscrolldown(int, int);
static void tsetattr(int *, int); static void tsetattr(int *, int);
static void tsetchar(Rune, Glyph *, int, int); static void tsetchar(Rune, Glyph *, int, int);
static void tsetdirt(int, int); static void tsetdirt(int, int);
@ -217,7 +210,6 @@ static void selsnap(int *, int *, int);
static size_t utf8decode(const char *, Rune *, size_t); static size_t utf8decode(const char *, Rune *, size_t);
static Rune utf8decodebyte(char, size_t *); static Rune utf8decodebyte(char, size_t *);
static char utf8encodebyte(Rune, size_t); static char utf8encodebyte(Rune, size_t);
static char *utf8strchr(char *, Rune);
static size_t utf8validate(Rune *, size_t); static size_t utf8validate(Rune *, size_t);
static char *base64dec(const char *); static char *base64dec(const char *);
@ -344,23 +336,6 @@ utf8encodebyte(Rune u, size_t i)
return utfbyte[i] | (u & ~utfmask[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 size_t
utf8validate(Rune *u, size_t i) utf8validate(Rune *u, size_t i)
{ {
@ -390,8 +365,9 @@ static const char base64_digits[] = {
char char
base64dec_getc(const char **src) base64dec_getc(const char **src)
{ {
while (**src && !isprint(**src)) (*src)++; while (**src && !isprint(**src))
return *((*src)++); (*src)++;
return **src ? *((*src)++) : '='; /* emulate padding if string ends */
} }
char * char *
@ -409,6 +385,10 @@ base64dec(const char *src)
int c = base64_digits[(unsigned char) base64dec_getc(&src)]; int c = base64_digits[(unsigned char) base64dec_getc(&src)];
int d = 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); *dst++ = (a << 2) | ((b & 0x30) >> 4);
if (c == -1) if (c == -1)
break; break;
@ -434,10 +414,10 @@ tlinelen(int y)
{ {
int i = term.col; int i = term.col;
if (TLINE(y)[i - 1].mode & ATTR_WRAP) if (term.line[y][i - 1].mode & ATTR_WRAP)
return i; return i;
while (i > 0 && TLINE(y)[i - 1].u == ' ') while (i > 0 && term.line[y][i - 1].u == ' ')
--i; --i;
return i; return i;
@ -483,7 +463,7 @@ selextend(int col, int row, int type, int done)
selnormalize(); selnormalize();
sel.type = type; 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)); tsetdirt(MIN(sel.nb.y, oldsby), MAX(sel.ne.y, oldsey));
sel.mode = done ? SEL_IDLE : SEL_READY; sel.mode = done ? SEL_IDLE : SEL_READY;
@ -546,7 +526,7 @@ selsnap(int *x, int *y, int direction)
* Snap around if the word wraps around at the end or * Snap around if the word wraps around at the end or
* beginning of a line. * beginning of a line.
*/ */
prevgp = &TLINE(*y)[*x]; prevgp = &term.line[*y][*x];
prevdelim = ISDELIM(prevgp->u); prevdelim = ISDELIM(prevgp->u);
for (;;) { for (;;) {
newx = *x + direction; newx = *x + direction;
@ -561,14 +541,14 @@ selsnap(int *x, int *y, int direction)
yt = *y, xt = *x; yt = *y, xt = *x;
else else
yt = newy, xt = newx; yt = newy, xt = newx;
if (!(TLINE(yt)[xt].mode & ATTR_WRAP)) if (!(term.line[yt][xt].mode & ATTR_WRAP))
break; break;
} }
if (newx >= tlinelen(newy)) if (newx >= tlinelen(newy))
break; break;
gp = &TLINE(newy)[newx]; gp = &term.line[newy][newx];
delim = ISDELIM(gp->u); delim = ISDELIM(gp->u);
if (!(gp->mode & ATTR_WDUMMY) && (delim != prevdelim if (!(gp->mode & ATTR_WDUMMY) && (delim != prevdelim
|| (delim && gp->u != prevgp->u))) || (delim && gp->u != prevgp->u)))
@ -589,14 +569,14 @@ selsnap(int *x, int *y, int direction)
*x = (direction < 0) ? 0 : term.col - 1; *x = (direction < 0) ? 0 : term.col - 1;
if (direction < 0) { if (direction < 0) {
for (; *y > 0; *y += direction) { for (; *y > 0; *y += direction) {
if (!(TLINE(*y-1)[term.col-1].mode if (!(term.line[*y-1][term.col-1].mode
& ATTR_WRAP)) { & ATTR_WRAP)) {
break; break;
} }
} }
} else if (direction > 0) { } else if (direction > 0) {
for (; *y < term.row-1; *y += direction) { for (; *y < term.row-1; *y += direction) {
if (!(TLINE(*y)[term.col-1].mode if (!(term.line[*y][term.col-1].mode
& ATTR_WRAP)) { & ATTR_WRAP)) {
break; break;
} }
@ -627,13 +607,13 @@ getsel(void)
} }
if (sel.type == SEL_RECTANGULAR) { if (sel.type == SEL_RECTANGULAR) {
gp = &TLINE(y)[sel.nb.x]; gp = &term.line[y][sel.nb.x];
lastx = sel.ne.x; lastx = sel.ne.x;
} else { } else {
gp = &TLINE(y)[sel.nb.y == y ? sel.nb.x : 0]; gp = &term.line[y][sel.nb.y == y ? sel.nb.x : 0];
lastx = (sel.ne.y == y) ? sel.ne.x : term.col-1; lastx = (sel.ne.y == y) ? sel.ne.x : term.col-1;
} }
last = &TLINE(y)[MIN(lastx, linelen-1)]; last = &term.line[y][MIN(lastx, linelen-1)];
while (last >= gp && last->u == ' ') while (last >= gp && last->u == ' ')
--last; --last;
@ -653,7 +633,8 @@ getsel(void)
* st. * st.
* FIXME: Fix the computer world. * 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++ = '\n';
} }
*ptr = 0; *ptr = 0;
@ -684,7 +665,7 @@ die(const char *errstr, ...)
void void
execsh(char *cmd, char **args) execsh(char *cmd, char **args)
{ {
char *sh, *prog; char *sh, *prog, *arg;
const struct passwd *pw; const struct passwd *pw;
errno = 0; errno = 0;
@ -698,13 +679,20 @@ execsh(char *cmd, char **args)
if ((sh = getenv("SHELL")) == NULL) if ((sh = getenv("SHELL")) == NULL)
sh = (pw->pw_shell[0]) ? pw->pw_shell : cmd; sh = (pw->pw_shell[0]) ? pw->pw_shell : cmd;
if (args) if (args) {
prog = args[0]; prog = args[0];
else if (utmp) arg = NULL;
} else if (scroll) {
prog = scroll;
arg = utmp ? utmp : sh;
} else if (utmp) {
prog = utmp; prog = utmp;
else arg = NULL;
} else {
prog = sh; prog = sh;
DEFAULT(args, ((char *[]) {prog, NULL})); arg = NULL;
}
DEFAULT(args, ((char *[]) {prog, arg, NULL}));
unsetenv("COLUMNS"); unsetenv("COLUMNS");
unsetenv("LINES"); unsetenv("LINES");
@ -742,7 +730,7 @@ sigchld(int a)
die("child exited with status %d\n", WEXITSTATUS(stat)); die("child exited with status %d\n", WEXITSTATUS(stat));
else if (WIFSIGNALED(stat)) else if (WIFSIGNALED(stat))
die("child terminated due to signal %d\n", WTERMSIG(stat)); die("child terminated due to signal %d\n", WTERMSIG(stat));
exit(0); _exit(0);
} }
void void
@ -835,30 +823,31 @@ ttyread(void)
{ {
static char buf[BUFSIZ]; static char buf[BUFSIZ];
static int buflen = 0; static int buflen = 0;
int written; int ret, written;
int ret;
/* append read bytes to unprocessed bytes */ /* append read bytes to unprocessed bytes */
if ((ret = read(cmdfd, buf+buflen, LEN(buf)-buflen)) < 0) 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)); die("couldn't read from shell: %s\n", strerror(errno));
buflen += ret; default:
buflen += ret;
written = twrite(buf, buflen, 0); written = twrite(buf, buflen, 0);
buflen -= written; 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) if (buflen > 0)
memmove(buf, buf + written, buflen); memmove(buf, buf + written, buflen);
return ret;
return ret; }
} }
void void
ttywrite(const char *s, size_t n, int may_echo) ttywrite(const char *s, size_t n, int may_echo)
{ {
const char *next; const char *next;
Arg arg = (Arg) { .i = term.scr };
kscrolldown(&arg);
if (may_echo && IS_SET(MODE_ECHO)) if (may_echo && IS_SET(MODE_ECHO))
twrite(s, n, 1); twrite(s, n, 1);
@ -1068,53 +1057,15 @@ tswapscreen(void)
term.mode ^= MODE_ALTSCREEN; term.mode ^= MODE_ALTSCREEN;
tfulldirt(); tfulldirt();
} }
void
kscrolldown(const Arg* a)
{
int n = a->i;
if (n < 0)
n = term.row + n;
if (n > term.scr)
n = term.scr;
if (term.scr > 0) {
term.scr -= n;
selscroll(0, -n);
tfulldirt();
}
}
void void
kscrollup(const Arg* a) tscrolldown(int orig, int n)
{
int n = a->i;
if (n < 0)
n = term.row + n;
if (term.scr <= HISTSIZE-n) {
term.scr += n;
selscroll(0, n);
tfulldirt();
}
}
void
tscrolldown(int orig, int n, int copyhist)
{ {
int i; int i;
Line temp; Line temp;
LIMIT(n, 0, term.bot-orig+1); LIMIT(n, 0, term.bot-orig+1);
if (copyhist) {
term.histi = (term.histi - 1 + HISTSIZE) % HISTSIZE;
temp = term.hist[term.histi];
term.hist[term.histi] = term.line[term.bot];
term.line[term.bot] = temp;
}
tsetdirt(orig, term.bot-n); tsetdirt(orig, term.bot-n);
tclearregion(0, term.bot-n+1, term.col-1, term.bot); tclearregion(0, term.bot-n+1, term.col-1, term.bot);
@ -1128,23 +1079,13 @@ tscrolldown(int orig, int n, int copyhist)
} }
void void
tscrollup(int orig, int n, int copyhist) tscrollup(int orig, int n)
{ {
int i; int i;
Line temp; Line temp;
LIMIT(n, 0, term.bot-orig+1); LIMIT(n, 0, term.bot-orig+1);
if (copyhist) {
term.histi = (term.histi + 1) % HISTSIZE;
temp = term.hist[term.histi];
term.hist[term.histi] = term.line[orig];
term.line[orig] = temp;
}
if (term.scr > 0 && term.scr < HISTSIZE)
term.scr = MIN(term.scr + n, HISTSIZE-1);
tclearregion(0, orig, term.col-1, orig+n-1); tclearregion(0, orig, term.col-1, orig+n-1);
tsetdirt(orig+n, term.bot); tsetdirt(orig+n, term.bot);
@ -1163,27 +1104,17 @@ selscroll(int orig, int n)
if (sel.ob.x == -1) if (sel.ob.x == -1)
return; return;
if (BETWEEN(sel.ob.y, orig, term.bot) || BETWEEN(sel.oe.y, orig, term.bot)) { if (BETWEEN(sel.nb.y, orig, term.bot) != BETWEEN(sel.ne.y, orig, term.bot)) {
if ((sel.ob.y += n) > term.bot || (sel.oe.y += n) < term.top) { 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(); 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 { } else {
if (sel.ob.y < term.top) { selnormalize();
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();
} }
} }
@ -1193,7 +1124,7 @@ tnewline(int first_col)
int y = term.c.y; int y = term.c.y;
if (y == term.bot) { if (y == term.bot) {
tscrollup(term.top, 1, 1); tscrollup(term.top, 1);
} else { } else {
y++; y++;
} }
@ -1358,14 +1289,14 @@ void
tinsertblankline(int n) tinsertblankline(int n)
{ {
if (BETWEEN(term.c.y, term.top, term.bot)) if (BETWEEN(term.c.y, term.top, term.bot))
tscrolldown(term.c.y, n, 0); tscrolldown(term.c.y, n);
} }
void void
tdeleteline(int n) tdeleteline(int n)
{ {
if (BETWEEN(term.c.y, term.top, term.bot)) if (BETWEEN(term.c.y, term.top, term.bot))
tscrollup(term.c.y, n, 0); tscrollup(term.c.y, n);
} }
int32_t int32_t
@ -1633,6 +1564,7 @@ tsetmode(int priv, int set, int *args, int narg)
case 1015: /* urxvt mangled mouse mode; incompatible case 1015: /* urxvt mangled mouse mode; incompatible
and can be mistaken for other control and can be mistaken for other control
codes. */ codes. */
break;
default: default:
fprintf(stderr, fprintf(stderr,
"erresc: unknown private set/reset mode %d\n", "erresc: unknown private set/reset mode %d\n",
@ -1714,6 +1646,12 @@ csihandle(void)
if (csiescseq.arg[0] == 0) if (csiescseq.arg[0] == 0)
ttywrite(vtiden, strlen(vtiden), 0); ttywrite(vtiden, strlen(vtiden), 0);
break; break;
case 'b': /* REP -- if last char is printable print it <n> more times */
DEFAULT(csiescseq.arg[0], 1);
if (term.lastc)
while (csiescseq.arg[0]-- > 0)
tputc(term.lastc);
break;
case 'C': /* CUF -- Cursor <n> Forward */ case 'C': /* CUF -- Cursor <n> Forward */
case 'a': /* HPR -- Cursor <n> Forward */ case 'a': /* HPR -- Cursor <n> Forward */
DEFAULT(csiescseq.arg[0], 1); DEFAULT(csiescseq.arg[0], 1);
@ -1795,11 +1733,11 @@ csihandle(void)
break; break;
case 'S': /* SU -- Scroll <n> line up */ case 'S': /* SU -- Scroll <n> line up */
DEFAULT(csiescseq.arg[0], 1); DEFAULT(csiescseq.arg[0], 1);
tscrollup(term.top, csiescseq.arg[0], 0); tscrollup(term.top, csiescseq.arg[0]);
break; break;
case 'T': /* SD -- Scroll <n> line down */ case 'T': /* SD -- Scroll <n> line down */
DEFAULT(csiescseq.arg[0], 1); DEFAULT(csiescseq.arg[0], 1);
tscrolldown(term.top, csiescseq.arg[0], 0); tscrolldown(term.top, csiescseq.arg[0]);
break; break;
case 'L': /* IL -- Insert <n> blank lines */ case 'L': /* IL -- Insert <n> blank lines */
DEFAULT(csiescseq.arg[0], 1); DEFAULT(csiescseq.arg[0], 1);
@ -1837,7 +1775,7 @@ csihandle(void)
break; break;
case 'n': /* DSR – Device Status Report (cursor position) */ case 'n': /* DSR – Device Status Report (cursor position) */
if (csiescseq.arg[0] == 6) { if (csiescseq.arg[0] == 6) {
len = snprintf(buf, sizeof(buf),"\033[%i;%iR", len = snprintf(buf, sizeof(buf), "\033[%i;%iR",
term.c.y+1, term.c.x+1); term.c.y+1, term.c.x+1);
ttywrite(buf, len, 0); ttywrite(buf, len, 0);
} }
@ -1874,7 +1812,7 @@ csihandle(void)
void void
csidump(void) csidump(void)
{ {
int i; size_t i;
uint c; uint c;
fprintf(stderr, "ESC["); fprintf(stderr, "ESC[");
@ -1904,7 +1842,7 @@ csireset(void)
void void
strhandle(void) strhandle(void)
{ {
char *p = NULL; char *p = NULL, *dec;
int j, narg, par; int j, narg, par;
term.esc &= ~(ESC_STR_END|ESC_STR); term.esc &= ~(ESC_STR_END|ESC_STR);
@ -1921,9 +1859,7 @@ strhandle(void)
xsettitle(strescseq.args[1]); xsettitle(strescseq.args[1]);
return; return;
case 52: case 52:
if (narg > 2) { if (narg > 2 && allowwindowops) {
char *dec;
dec = base64dec(strescseq.args[2]); dec = base64dec(strescseq.args[2]);
if (dec) { if (dec) {
xsetsel(dec); xsetsel(dec);
@ -1941,7 +1877,10 @@ strhandle(void)
case 104: /* color reset, here p = NULL */ case 104: /* color reset, here p = NULL */
j = (narg > 1) ? atoi(strescseq.args[1]) : -1; j = (narg > 1) ? atoi(strescseq.args[1]) : -1;
if (xsetcolorname(j, p)) { if (xsetcolorname(j, p)) {
fprintf(stderr, "erresc: invalid color %s\n", p); if (par == 104 && narg <= 1)
return; /* color reset without parameter */
fprintf(stderr, "erresc: invalid color j=%d, p=%s\n",
j, p ? p : "(null)");
} else { } else {
/* /*
* TODO if defaultbg color is changed, borders * TODO if defaultbg color is changed, borders
@ -1956,7 +1895,6 @@ strhandle(void)
xsettitle(strescseq.args[0]); xsettitle(strescseq.args[0]);
return; return;
case 'P': /* DCS -- Device Control String */ case 'P': /* DCS -- Device Control String */
term.mode |= ESC_DCS;
case '_': /* APC -- Application Program Command */ case '_': /* APC -- Application Program Command */
case '^': /* PM -- Privacy Message */ case '^': /* PM -- Privacy Message */
return; return;
@ -1991,7 +1929,7 @@ strparse(void)
void void
strdump(void) strdump(void)
{ {
int i; size_t i;
uint c; uint c;
fprintf(stderr, "ESC%c", strescseq.type); fprintf(stderr, "ESC%c", strescseq.type);
@ -2018,7 +1956,10 @@ strdump(void)
void void
strreset(void) strreset(void)
{ {
memset(&strescseq, 0, sizeof(strescseq)); strescseq = (STREscape){
.buf = xrealloc(strescseq.buf, STR_BUF_SIZ),
.siz = STR_BUF_SIZ,
};
} }
void void
@ -2076,7 +2017,7 @@ tdumpline(int n)
bp = &term.line[n][0]; bp = &term.line[n][0];
end = &bp[MIN(tlinelen(n), term.col) - 1]; end = &bp[MIN(tlinelen(n), term.col) - 1];
if (bp != end || bp->u != ' ') { if (bp != end || bp->u != ' ') {
for ( ;bp <= end; ++bp) for ( ; bp <= end; ++bp)
tprinter(buf, utf8encode(bp->u, buf)); tprinter(buf, utf8encode(bp->u, buf));
} }
tprinter("\n", 1); tprinter("\n", 1);
@ -2147,12 +2088,9 @@ tdectest(char c)
void void
tstrsequence(uchar c) tstrsequence(uchar c)
{ {
strreset();
switch (c) { switch (c) {
case 0x90: /* DCS -- Device Control String */ case 0x90: /* DCS -- Device Control String */
c = 'P'; c = 'P';
term.esc |= ESC_DCS;
break; break;
case 0x9f: /* APC -- Application Program Command */ case 0x9f: /* APC -- Application Program Command */
c = '_'; c = '_';
@ -2164,6 +2102,7 @@ tstrsequence(uchar c)
c = ']'; c = ']';
break; break;
} }
strreset();
strescseq.type = c; strescseq.type = c;
term.esc |= ESC_STR; term.esc |= ESC_STR;
} }
@ -2206,6 +2145,7 @@ tcontrolcode(uchar ascii)
return; return;
case '\032': /* SUB */ case '\032': /* SUB */
tsetchar('?', &term.c.attr, term.c.x, term.c.y); tsetchar('?', &term.c.attr, term.c.x, term.c.y);
/* FALLTHROUGH */
case '\030': /* CAN */ case '\030': /* CAN */
csireset(); csireset();
break; break;
@ -2301,7 +2241,7 @@ eschandle(uchar ascii)
return 0; return 0;
case 'D': /* IND -- Linefeed */ case 'D': /* IND -- Linefeed */
if (term.c.y == term.bot) { if (term.c.y == term.bot) {
tscrollup(term.top, 1, 1); tscrollup(term.top, 1);
} else { } else {
tmoveto(term.c.x, term.c.y+1); tmoveto(term.c.x, term.c.y+1);
} }
@ -2314,7 +2254,7 @@ eschandle(uchar ascii)
break; break;
case 'M': /* RI -- Reverse index */ case 'M': /* RI -- Reverse index */
if (term.c.y == term.top) { if (term.c.y == term.top) {
tscrolldown(term.top, 1, 1); tscrolldown(term.top, 1);
} else { } else {
tmoveto(term.c.x, term.c.y-1); tmoveto(term.c.x, term.c.y-1);
} }
@ -2360,15 +2300,13 @@ tputc(Rune u)
Glyph *gp; Glyph *gp;
control = ISCONTROL(u); control = ISCONTROL(u);
if (!IS_SET(MODE_UTF8) && !IS_SET(MODE_SIXEL)) { if (u < 127 || !IS_SET(MODE_UTF8)) {
c[0] = u; c[0] = u;
width = len = 1; width = len = 1;
} else { } else {
len = utf8encode(u, c); len = utf8encode(u, c);
if (!control && (width = wcwidth(u)) == -1) { if (!control && (width = wcwidth(u)) == -1)
memcpy(c, "\357\277\275", 4); /* UTF_INVALID */
width = 1; width = 1;
}
} }
if (IS_SET(MODE_PRINT)) if (IS_SET(MODE_PRINT))
@ -2383,25 +2321,12 @@ tputc(Rune u)
if (term.esc & ESC_STR) { if (term.esc & ESC_STR) {
if (u == '\a' || u == 030 || u == 032 || u == 033 || if (u == '\a' || u == 030 || u == 032 || u == 033 ||
ISCONTROLC1(u)) { ISCONTROLC1(u)) {
term.esc &= ~(ESC_START|ESC_STR|ESC_DCS); term.esc &= ~(ESC_START|ESC_STR);
if (IS_SET(MODE_SIXEL)) {
/* TODO: render sixel */;
term.mode &= ~MODE_SIXEL;
return;
}
term.esc |= ESC_STR_END; term.esc |= ESC_STR_END;
goto check_control_code; goto check_control_code;
} }
if (strescseq.len+len >= strescseq.siz) {
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) {
/* /*
* Here is a bug in terminals. If the user never sends * Here is a bug in terminals. If the user never sends
* some code to stop the str or esc command, then st * some code to stop the str or esc command, then st
@ -2415,7 +2340,10 @@ tputc(Rune u)
* term.esc = 0; * term.esc = 0;
* strhandle(); * strhandle();
*/ */
return; 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); memmove(&strescseq.buf[strescseq.len], c, len);
@ -2434,6 +2362,8 @@ check_control_code:
/* /*
* control codes are not shown ever * control codes are not shown ever
*/ */
if (!term.esc)
term.lastc = 0;
return; return;
} else if (term.esc & ESC_START) { } else if (term.esc & ESC_START) {
if (term.esc & ESC_CSI) { if (term.esc & ESC_CSI) {
@ -2464,7 +2394,7 @@ check_control_code:
*/ */
return; 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(); selclear();
gp = &term.line[term.c.y][term.c.x]; gp = &term.line[term.c.y][term.c.x];
@ -2483,6 +2413,7 @@ check_control_code:
} }
tsetchar(u, &term.c.attr, term.c.x, term.c.y); tsetchar(u, &term.c.attr, term.c.x, term.c.y);
term.lastc = u;
if (width == 2) { if (width == 2) {
gp->mode |= ATTR_WIDE; gp->mode |= ATTR_WIDE;
@ -2506,7 +2437,7 @@ twrite(const char *buf, int buflen, int show_ctrl)
int n; int n;
for (n = 0; n < buflen; n += charsize) { 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 */ /* process a complete utf8 char */
charsize = utf8decode(buf + n, &u, buflen - n); charsize = utf8decode(buf + n, &u, buflen - n);
if (charsize == 0) if (charsize == 0)
@ -2533,7 +2464,7 @@ twrite(const char *buf, int buflen, int show_ctrl)
void void
tresize(int col, int row) tresize(int col, int row)
{ {
int i, j; int i;
int minrow = MIN(row, term.row); int minrow = MIN(row, term.row);
int mincol = MIN(col, term.col); int mincol = MIN(col, term.col);
int *bp; int *bp;
@ -2570,14 +2501,6 @@ tresize(int col, int row)
term.dirty = xrealloc(term.dirty, row * sizeof(*term.dirty)); term.dirty = xrealloc(term.dirty, row * sizeof(*term.dirty));
term.tabs = xrealloc(term.tabs, col * sizeof(*term.tabs)); term.tabs = xrealloc(term.tabs, col * sizeof(*term.tabs));
for (i = 0; i < HISTSIZE; i++) {
term.hist[i] = xrealloc(term.hist[i], col * sizeof(Glyph));
for (j = mincol; j < col; j++) {
term.hist[i][j] = term.c.attr;
term.hist[i][j].u = ' ';
}
}
/* resize each row to new width, zero-pad if needed */ /* resize each row to new width, zero-pad if needed */
for (i = 0; i < minrow; i++) { for (i = 0; i < minrow; i++) {
term.line[i] = xrealloc(term.line[i], col * sizeof(Glyph)); term.line[i] = xrealloc(term.line[i], col * sizeof(Glyph));
@ -2630,19 +2553,20 @@ void
drawregion(int x1, int y1, int x2, int y2) drawregion(int x1, int y1, int x2, int y2)
{ {
int y; int y;
for (y = y1; y < y2; y++) { for (y = y1; y < y2; y++) {
if (!term.dirty[y]) if (!term.dirty[y])
continue; continue;
term.dirty[y] = 0; term.dirty[y] = 0;
xdrawline(TLINE(y), x1, y, x2); xdrawline(term.line[y], x1, y, x2);
} }
} }
void void
draw(void) draw(void)
{ {
int cx = term.c.x; int cx = term.c.x, ocx = term.ocx, ocy = term.ocy;
if (!xstartdraw()) if (!xstartdraw())
return; return;
@ -2656,11 +2580,13 @@ draw(void)
cx--; cx--;
drawregion(0, 0, term.col, term.row); drawregion(0, 0, term.col, term.row);
if (term.scr == 0) xdrawcursor(cx, term.c.y, term.line[term.c.y][cx],
xdrawcursor(cx, term.c.y, term.line[term.c.y][cx],
term.ocx, term.ocy, term.line[term.ocy][term.ocx]); 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(); xfinishdraw();
if (ocx != term.ocx || ocy != term.ocy)
xximspot(term.ocx, term.ocy);
} }
void void

16
st.h
View file

@ -74,21 +74,13 @@ typedef union {
uint ui; uint ui;
float f; float f;
const void *v; const void *v;
const char *s;
} Arg; } Arg;
typedef struct {
uint b;
uint mask;
void (*func)(const Arg *);
const Arg arg;
} MouseKey;
void die(const char *, ...); void die(const char *, ...);
void redraw(void); void redraw(void);
void draw(void); void draw(void);
void kscrolldown(const Arg *);
void kscrollup(const Arg *);
void printscreen(const Arg *); void printscreen(const Arg *);
void printsel(const Arg *); void printsel(const Arg *);
void sendbreak(const Arg *); void sendbreak(const Arg *);
@ -121,13 +113,13 @@ char *xstrdup(char *);
/* config.h globals */ /* config.h globals */
extern char *utmp; extern char *utmp;
extern char *scroll;
extern char *stty_args; extern char *stty_args;
extern char *vtiden; extern char *vtiden;
extern char *worddelimiters; extern wchar_t *worddelimiters;
extern int allowaltscreen; extern int allowaltscreen;
extern int allowwindowops;
extern char *termname; extern char *termname;
extern unsigned int tabspaces; extern unsigned int tabspaces;
extern unsigned int defaultfg; extern unsigned int defaultfg;
extern unsigned int defaultbg; extern unsigned int defaultbg;
extern float alpha;
extern MouseKey mkeys[];

37
st.info
View file

@ -1,4 +1,4 @@
st| simpleterm, st-mono| simpleterm monocolor,
acsc=+C\,D-A.B0E``aaffgghFiGjjkkllmmnnooppqqrrssttuuvvwwxxyyzz{{||}}~~, acsc=+C\,D-A.B0E``aaffgghFiGjjkkllmmnnooppqqrrssttuuvvwwxxyyzz{{||}}~~,
am, am,
bce, bce,
@ -10,7 +10,7 @@ st| simpleterm,
civis=\E[?25l, civis=\E[?25l,
clear=\E[H\E[2J, clear=\E[H\E[2J,
cnorm=\E[?12l\E[?25h, cnorm=\E[?12l\E[?25h,
colors#8, colors#2,
cols#80, cols#80,
cr=^M, cr=^M,
csr=\E[%i%p1%d;%p2%dr, csr=\E[%i%p1%d;%p2%dr,
@ -158,6 +158,7 @@ st| simpleterm,
rc=\E8, rc=\E8,
rev=\E[7m, rev=\E[7m,
ri=\EM, ri=\EM,
rin=\E[%p1%dT,
ritm=\E[23m, ritm=\E[23m,
rmacs=\E(B, rmacs=\E(B,
rmcup=\E[?1049l, rmcup=\E[?1049l,
@ -168,13 +169,8 @@ st| simpleterm,
rs1=\Ec, rs1=\Ec,
rs2=\E[4l\E>\E[?1034l, rs2=\E[4l\E>\E[?1034l,
sc=\E7, 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, sitm=\E[3m,
sgr0=\E[0m,
smacs=\E(0, smacs=\E(0,
smcup=\E[?1049h, smcup=\E[?1049h,
smir=\E[4h, smir=\E[4h,
@ -188,11 +184,22 @@ st| simpleterm,
# XTerm extensions # XTerm extensions
rmxx=\E[29m, rmxx=\E[29m,
smxx=\E[9m, smxx=\E[9m,
# 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) # tmux extensions, see TERMINFO EXTENSIONS in tmux(1)
Se,
Ss,
Tc, Tc,
Ms=\E]52;%p1%s;%p2%s\007, 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, st-256color| simpleterm with 256 colors,
use=st, use=st,
@ -220,3 +227,13 @@ st-meta-256color| simpleterm with meta key and 256 colors,
smm=\E[?1034h, smm=\E[?1034h,
rs2=\E[4l\E>\E[?1034h, rs2=\E[4l\E>\E[?1034h,
is2=\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,

BIN
st.o Normal file
View file

Binary file not shown.

1
win.h
View file

@ -36,3 +36,4 @@ void xsetmode(int, unsigned int);
void xsetpointermotion(int); void xsetpointermotion(int);
void xsetsel(char *); void xsetsel(char *);
int xstartdraw(void); int xstartdraw(void);
void xximspot(int, int);

383
x.c
View file

@ -15,7 +15,7 @@
#include <X11/Xft/Xft.h> #include <X11/Xft/Xft.h>
#include <X11/XKBlib.h> #include <X11/XKBlib.h>
static char *argv0; char *argv0;
#include "arg.h" #include "arg.h"
#include "st.h" #include "st.h"
#include "win.h" #include "win.h"
@ -29,9 +29,11 @@ typedef struct {
} Shortcut; } Shortcut;
typedef struct { typedef struct {
uint b; uint mod;
uint mask; uint button;
char *s; void (*func)(const Arg *);
const Arg arg;
uint release;
} MouseShortcut; } MouseShortcut;
typedef struct { typedef struct {
@ -56,6 +58,7 @@ static void selpaste(const Arg *);
static void zoom(const Arg *); static void zoom(const Arg *);
static void zoomabs(const Arg *); static void zoomabs(const Arg *);
static void zoomreset(const Arg *); static void zoomreset(const Arg *);
static void ttysend(const Arg *);
/* config.h for applying patches and the configuration. */ /* config.h for applying patches and the configuration. */
#include "config.h" #include "config.h"
@ -91,14 +94,17 @@ typedef struct {
Drawable buf; Drawable buf;
GlyphFontSpec *specbuf; /* font spec buffer used for rendering */ GlyphFontSpec *specbuf; /* font spec buffer used for rendering */
Atom xembed, wmdeletewin, netwmname, netwmpid; Atom xembed, wmdeletewin, netwmname, netwmpid;
XIM xim; struct {
XIC xic; XIM xim;
XIC xic;
XPoint spot;
XVaNestedList spotlist;
} ime;
Draw draw; Draw draw;
Visual *vis; Visual *vis;
XSetWindowAttributes attrs; XSetWindowAttributes attrs;
int scr; int scr;
int isfixed; /* is fixed geometry? */ int isfixed; /* is fixed geometry? */
int depth; /* bit depth */
int l, t; /* left and top offset */ int l, t; /* left and top offset */
int gm; /* geometry mask */ int gm; /* geometry mask */
} XWindow; } XWindow;
@ -140,6 +146,10 @@ static void xdrawglyphfontspecs(const XftGlyphFontSpec *, Glyph, int, int, int);
static void xdrawglyph(Glyph, int, int); static void xdrawglyph(Glyph, int, int);
static void xclear(int, int, int, int); static void xclear(int, int, int, int);
static int xgeommasktogravity(int); static int xgeommasktogravity(int);
static int ximopen(Display *);
static void ximinstantiate(Display *, XPointer, XPointer);
static void ximdestroy(XIM, XPointer, XPointer);
static int xicdestroy(XIC, XPointer, XPointer);
static void xinit(int, int); static void xinit(int, int);
static void cresize(int, int); static void cresize(int, int);
static void xresize(int, int); static void xresize(int, int);
@ -161,6 +171,8 @@ static void kpress(XEvent *);
static void cmessage(XEvent *); static void cmessage(XEvent *);
static void resize(XEvent *); static void resize(XEvent *);
static void focus(XEvent *); static void focus(XEvent *);
static uint buttonmask(uint);
static int mouseaction(XEvent *, uint);
static void brelease(XEvent *); static void brelease(XEvent *);
static void bpress(XEvent *); static void bpress(XEvent *);
static void bmotion(XEvent *); static void bmotion(XEvent *);
@ -224,13 +236,13 @@ typedef struct {
} Fontcache; } Fontcache;
/* Fontcache is an array now. A new font will be appended to the array. */ /* Fontcache is an array now. A new font will be appended to the array. */
static Fontcache frc[16]; static Fontcache *frc = NULL;
static int frclen = 0; static int frclen = 0;
static int frccap = 0;
static char *usedfont = NULL; static char *usedfont = NULL;
static double usedfontsize = 0; static double usedfontsize = 0;
static double defaultfontsize = 0; static double defaultfontsize = 0;
static char *opt_alpha = NULL;
static char *opt_class = NULL; static char *opt_class = NULL;
static char **opt_cmd = NULL; static char **opt_cmd = NULL;
static char *opt_embed = NULL; static char *opt_embed = NULL;
@ -310,6 +322,12 @@ zoomreset(const Arg *arg)
} }
} }
void
ttysend(const Arg *arg)
{
ttywrite(arg->s, strlen(arg->s), 1);
}
int int
evcol(XEvent *e) evcol(XEvent *e)
{ {
@ -330,7 +348,7 @@ void
mousesel(XEvent *e, int done) mousesel(XEvent *e, int done)
{ {
int type, seltype = SEL_REGULAR; int type, seltype = SEL_REGULAR;
uint state = e->xbutton.state & ~(Button1Mask | forceselmod); uint state = e->xbutton.state & ~(Button1Mask | forcemousemod);
for (type = 1; type < LEN(selmasks); ++type) { for (type = 1; type < LEN(selmasks); ++type) {
if (match(selmasks[type], state)) { if (match(selmasks[type], state)) {
@ -406,34 +424,51 @@ mousereport(XEvent *e)
ttywrite(buf, len, 0); ttywrite(buf, len, 0);
} }
uint
buttonmask(uint button)
{
return button == Button1 ? Button1Mask
: button == Button2 ? Button2Mask
: button == Button3 ? Button3Mask
: button == Button4 ? Button4Mask
: button == Button5 ? Button5Mask
: 0;
}
int
mouseaction(XEvent *e, uint release)
{
MouseShortcut *ms;
/* ignore Button<N>mask for Button<N> - it's set on release */
uint state = e->xbutton.state & ~buttonmask(e->xbutton.button);
for (ms = mshortcuts; ms < mshortcuts + LEN(mshortcuts); ms++) {
if (ms->release == release &&
ms->button == e->xbutton.button &&
(match(ms->mod, state) || /* exact or forced */
match(ms->mod, state & ~forcemousemod))) {
ms->func(&(ms->arg));
return 1;
}
}
return 0;
}
void void
bpress(XEvent *e) bpress(XEvent *e)
{ {
struct timespec now; struct timespec now;
MouseShortcut *ms;
MouseKey *mk;
int snap; int snap;
if (IS_SET(MODE_MOUSE) && !(e->xbutton.state & forceselmod)) { if (IS_SET(MODE_MOUSE) && !(e->xbutton.state & forcemousemod)) {
mousereport(e); mousereport(e);
return; return;
} }
for (ms = mshortcuts; ms < mshortcuts + LEN(mshortcuts); ms++) { if (mouseaction(e, 0))
if (e->xbutton.button == ms->b return;
&& match(ms->mask, e->xbutton.state)) {
ttywrite(ms->s, strlen(ms->s), 1);
return;
}
}
for (mk = mkeys; mk < mkeys + LEN(mkeys); mk++) {
if (e->xbutton.button == mk->b
&& match(mk->mask, e->xbutton.state)) {
mk->func(&mk->arg);
return;
}
}
if (e->xbutton.button == Button1) { if (e->xbutton.button == Button1) {
/* /*
@ -649,21 +684,21 @@ xsetsel(char *str)
void void
brelease(XEvent *e) brelease(XEvent *e)
{ {
if (IS_SET(MODE_MOUSE) && !(e->xbutton.state & forceselmod)) { if (IS_SET(MODE_MOUSE) && !(e->xbutton.state & forcemousemod)) {
mousereport(e); mousereport(e);
return; return;
} }
if (e->xbutton.button == Button2 || e->xbutton.button == Button3) if (mouseaction(e, 1))
selpaste(NULL); return;
else if (e->xbutton.button == Button1) if (e->xbutton.button == Button1)
mousesel(e, 1); mousesel(e, 1);
} }
void void
bmotion(XEvent *e) bmotion(XEvent *e)
{ {
if (IS_SET(MODE_MOUSE) && !(e->xbutton.state & forceselmod)) { if (IS_SET(MODE_MOUSE) && !(e->xbutton.state & forcemousemod)) {
mousereport(e); mousereport(e);
return; return;
} }
@ -699,7 +734,7 @@ xresize(int col, int row)
XFreePixmap(xw.dpy, xw.buf); XFreePixmap(xw.dpy, xw.buf);
xw.buf = XCreatePixmap(xw.dpy, xw.win, win.w, win.h, xw.buf = XCreatePixmap(xw.dpy, xw.win, win.w, win.h,
xw.depth); DefaultDepth(xw.dpy, xw.scr));
XftDrawChange(xw.draw, xw.buf); XftDrawChange(xw.draw, xw.buf);
xclear(0, 0, win.w, win.h); xclear(0, 0, win.w, win.h);
@ -759,13 +794,6 @@ xloadcols(void)
else else
die("could not allocate color %d\n", i); die("could not allocate color %d\n", i);
} }
/* set alpha value of bg color */
if (opt_alpha)
alpha = strtof(opt_alpha, NULL);
dc.col[defaultbg].color.alpha = (unsigned short)(0xffff * alpha);
dc.col[defaultbg].pixel &= 0x00FFFFFF;
dc.col[defaultbg].pixel |= (unsigned char)(0xff * alpha) << 24;
loaded = 1; loaded = 1;
} }
@ -777,7 +805,6 @@ xsetcolorname(int x, const char *name)
if (!BETWEEN(x, 0, dc.collen)) if (!BETWEEN(x, 0, dc.collen))
return 1; return 1;
if (!xloadcolor(x, name, &ncolor)) if (!xloadcolor(x, name, &ncolor))
return 1; return 1;
@ -1014,6 +1041,60 @@ xunloadfonts(void)
xunloadfont(&dc.ibfont); xunloadfont(&dc.ibfont);
} }
int
ximopen(Display *dpy)
{
XIMCallback imdestroy = { .client_data = NULL, .callback = ximdestroy };
XICCallback icdestroy = { .client_data = NULL, .callback = xicdestroy };
xw.ime.xim = XOpenIM(xw.dpy, NULL, NULL, NULL);
if (xw.ime.xim == NULL)
return 0;
if (XSetIMValues(xw.ime.xim, XNDestroyCallback, &imdestroy, NULL))
fprintf(stderr, "XSetIMValues: "
"Could not set XNDestroyCallback.\n");
xw.ime.spotlist = XVaCreateNestedList(0, XNSpotLocation, &xw.ime.spot,
NULL);
if (xw.ime.xic == NULL) {
xw.ime.xic = XCreateIC(xw.ime.xim, XNInputStyle,
XIMPreeditNothing | XIMStatusNothing,
XNClientWindow, xw.win,
XNDestroyCallback, &icdestroy,
NULL);
}
if (xw.ime.xic == NULL)
fprintf(stderr, "XCreateIC: Could not create input context.\n");
return 1;
}
void
ximinstantiate(Display *dpy, XPointer client, XPointer call)
{
if (ximopen(dpy))
XUnregisterIMInstantiateCallback(xw.dpy, NULL, NULL, NULL,
ximinstantiate, NULL);
}
void
ximdestroy(XIM xim, XPointer client, XPointer call)
{
xw.ime.xim = NULL;
XRegisterIMInstantiateCallback(xw.dpy, NULL, NULL, NULL,
ximinstantiate, NULL);
XFree(xw.ime.spotlist);
}
int
xicdestroy(XIC xim, XPointer client, XPointer call)
{
xw.ime.xic = NULL;
return 1;
}
void void
xinit(int cols, int rows) xinit(int cols, int rows)
{ {
@ -1022,23 +1103,11 @@ xinit(int cols, int rows)
Window parent; Window parent;
pid_t thispid = getpid(); pid_t thispid = getpid();
XColor xmousefg, xmousebg; XColor xmousefg, xmousebg;
XWindowAttributes attr;
XVisualInfo vis;
if (!(xw.dpy = XOpenDisplay(NULL))) if (!(xw.dpy = XOpenDisplay(NULL)))
die("can't open display\n"); die("can't open display\n");
xw.scr = XDefaultScreen(xw.dpy); xw.scr = XDefaultScreen(xw.dpy);
xw.vis = XDefaultVisual(xw.dpy, xw.scr);
if (!(opt_embed && (parent = strtol(opt_embed, NULL, 0)))) {
parent = XRootWindow(xw.dpy, xw.scr);
xw.depth = 32;
} else {
XGetWindowAttributes(xw.dpy, parent, &attr);
xw.depth = attr.depth;
}
XMatchVisualInfo(xw.dpy, xw.scr, xw.depth, TrueColor, &vis);
xw.vis = vis.visual;
/* font */ /* font */
if (!FcInit()) if (!FcInit())
@ -1048,7 +1117,7 @@ xinit(int cols, int rows)
xloadfonts(usedfont, 0); xloadfonts(usedfont, 0);
/* colors */ /* colors */
xw.cmap = XCreateColormap(xw.dpy, parent, xw.vis, None); xw.cmap = XDefaultColormap(xw.dpy, xw.scr);
xloadcols(); xloadcols();
/* adjust fixed window geometry */ /* adjust fixed window geometry */
@ -1063,20 +1132,24 @@ xinit(int cols, int rows)
xw.attrs.background_pixel = dc.col[defaultbg].pixel; xw.attrs.background_pixel = dc.col[defaultbg].pixel;
xw.attrs.border_pixel = dc.col[defaultbg].pixel; xw.attrs.border_pixel = dc.col[defaultbg].pixel;
xw.attrs.bit_gravity = NorthWestGravity; xw.attrs.bit_gravity = NorthWestGravity;
xw.attrs.event_mask = FocusChangeMask | KeyPressMask xw.attrs.event_mask = FocusChangeMask | KeyPressMask | KeyReleaseMask
| ExposureMask | VisibilityChangeMask | StructureNotifyMask | ExposureMask | VisibilityChangeMask | StructureNotifyMask
| ButtonMotionMask | ButtonPressMask | ButtonReleaseMask; | ButtonMotionMask | ButtonPressMask | ButtonReleaseMask;
xw.attrs.colormap = xw.cmap; xw.attrs.colormap = xw.cmap;
if (!(opt_embed && (parent = strtol(opt_embed, NULL, 0))))
parent = XRootWindow(xw.dpy, xw.scr);
xw.win = XCreateWindow(xw.dpy, parent, xw.l, xw.t, xw.win = XCreateWindow(xw.dpy, parent, xw.l, xw.t,
win.w, win.h, 0, xw.depth, InputOutput, win.w, win.h, 0, XDefaultDepth(xw.dpy, xw.scr), InputOutput,
xw.vis, CWBackPixel | CWBorderPixel | CWBitGravity xw.vis, CWBackPixel | CWBorderPixel | CWBitGravity
| CWEventMask | CWColormap, &xw.attrs); | CWEventMask | CWColormap, &xw.attrs);
memset(&gcvalues, 0, sizeof(gcvalues)); memset(&gcvalues, 0, sizeof(gcvalues));
gcvalues.graphics_exposures = False; gcvalues.graphics_exposures = False;
xw.buf = XCreatePixmap(xw.dpy, xw.win, win.w, win.h, xw.depth); dc.gc = XCreateGC(xw.dpy, parent, GCGraphicsExposures,
dc.gc = XCreateGC(xw.dpy, xw.buf, GCGraphicsExposures, &gcvalues); &gcvalues);
xw.buf = XCreatePixmap(xw.dpy, xw.win, win.w, win.h,
DefaultDepth(xw.dpy, xw.scr));
XSetForeground(xw.dpy, dc.gc, dc.col[defaultbg].pixel); XSetForeground(xw.dpy, dc.gc, dc.col[defaultbg].pixel);
XFillRectangle(xw.dpy, xw.buf, dc.gc, 0, 0, win.w, win.h); XFillRectangle(xw.dpy, xw.buf, dc.gc, 0, 0, win.w, win.h);
@ -1087,22 +1160,10 @@ xinit(int cols, int rows)
xw.draw = XftDrawCreate(xw.dpy, xw.buf, xw.vis, xw.cmap); xw.draw = XftDrawCreate(xw.dpy, xw.buf, xw.vis, xw.cmap);
/* input methods */ /* input methods */
if ((xw.xim = XOpenIM(xw.dpy, NULL, NULL, NULL)) == NULL) { if (!ximopen(xw.dpy)) {
XSetLocaleModifiers("@im=local"); XRegisterIMInstantiateCallback(xw.dpy, NULL, NULL, NULL,
if ((xw.xim = XOpenIM(xw.dpy, NULL, NULL, NULL)) == NULL) { ximinstantiate, NULL);
XSetLocaleModifiers("@im=");
if ((xw.xim = XOpenIM(xw.dpy,
NULL, NULL, NULL)) == NULL) {
die("XOpenIM failed. Could not open input"
" device.\n");
}
}
} }
xw.xic = XCreateIC(xw.xim, XNInputStyle, XIMPreeditNothing
| XIMStatusNothing, XNClientWindow, xw.win,
XNFocusWindow, xw.win, NULL);
if (xw.xic == NULL)
die("XCreateIC failed. Could not obtain input method.\n");
/* white cursor, black outline */ /* white cursor, black outline */
cursor = XCreateFontCursor(xw.dpy, mouseshape); cursor = XCreateFontCursor(xw.dpy, mouseshape);
@ -1133,8 +1194,8 @@ xinit(int cols, int rows)
win.mode = MODE_NUMLOCK; win.mode = MODE_NUMLOCK;
resettitle(); resettitle();
XMapWindow(xw.dpy, xw.win);
xhints(); xhints();
XMapWindow(xw.dpy, xw.win);
XSync(xw.dpy, False); XSync(xw.dpy, False);
clock_gettime(CLOCK_MONOTONIC, &xsel.tclick1); clock_gettime(CLOCK_MONOTONIC, &xsel.tclick1);
@ -1244,13 +1305,10 @@ xmakeglyphfontspecs(XftGlyphFontSpec *specs, const Glyph *glyphs, int len, int x
fontpattern = FcFontSetMatch(0, fcsets, 1, fontpattern = FcFontSetMatch(0, fcsets, 1,
fcpattern, &fcres); fcpattern, &fcres);
/* /* Allocate memory for the new cache entry. */
* Overwrite or create the new cache entry. if (frclen >= frccap) {
*/ frccap += 16;
if (frclen >= LEN(frc)) { frc = xrealloc(frc, frccap * sizeof(Fontcache));
frclen = LEN(frc) - 1;
XftFontClose(xw.dpy, frc[frclen].font);
frc[frclen].unicodep = 0;
} }
frc[frclen].font = XftFontOpenPattern(xw.dpy, frc[frclen].font = XftFontOpenPattern(xw.dpy,
@ -1468,8 +1526,9 @@ xdrawcursor(int cx, int cy, Glyph g, int ox, int oy, Glyph og)
/* draw the new one */ /* draw the new one */
if (IS_SET(MODE_FOCUSED)) { if (IS_SET(MODE_FOCUSED)) {
switch (win.cursor) { switch (win.cursor) {
case 7: /* st extension: snowman (U+2603) */ case 7: /* st extension */
g.u = 0x2603; g.u = 0x2603; /* snowman (U+2603) */
/* FALLTHROUGH */
case 0: /* Blinking Block */ case 0: /* Blinking Block */
case 1: /* Blinking Block (Default) */ case 1: /* Blinking Block (Default) */
case 2: /* Steady Block */ case 2: /* Steady Block */
@ -1580,6 +1639,18 @@ xfinishdraw(void)
defaultfg : defaultbg].pixel); defaultfg : defaultbg].pixel);
} }
void
xximspot(int x, int y)
{
if (xw.ime.xic == NULL)
return;
xw.ime.spot.x = borderpx + x * win.cw;
xw.ime.spot.y = borderpx + (y + 1) * win.ch;
XSetICValues(xw.ime.xic, XNPreeditAttributes, xw.ime.spotlist, NULL);
}
void void
expose(XEvent *ev) expose(XEvent *ev)
{ {
@ -1619,8 +1690,7 @@ xsetmode(int set, unsigned int flags)
int int
xsetcursor(int cursor) xsetcursor(int cursor)
{ {
DEFAULT(cursor, 1); if (!BETWEEN(cursor, 0, 7)) /* 7: st extension */
if (!BETWEEN(cursor, 0, 6))
return 1; return 1;
win.cursor = cursor; win.cursor = cursor;
return 0; return 0;
@ -1654,13 +1724,15 @@ focus(XEvent *ev)
return; return;
if (ev->type == FocusIn) { if (ev->type == FocusIn) {
XSetICFocus(xw.xic); if (xw.ime.xic)
XSetICFocus(xw.ime.xic);
win.mode |= MODE_FOCUSED; win.mode |= MODE_FOCUSED;
xseturgency(0); xseturgency(0);
if (IS_SET(MODE_FOCUS)) if (IS_SET(MODE_FOCUS))
ttywrite("\033[I", 3, 0); ttywrite("\033[I", 3, 0);
} else { } else {
XUnsetICFocus(xw.xic); if (xw.ime.xic)
XUnsetICFocus(xw.ime.xic);
win.mode &= ~MODE_FOCUSED; win.mode &= ~MODE_FOCUSED;
if (IS_SET(MODE_FOCUS)) if (IS_SET(MODE_FOCUS))
ttywrite("\033[O", 3, 0); ttywrite("\033[O", 3, 0);
@ -1715,7 +1787,7 @@ kpress(XEvent *ev)
{ {
XKeyEvent *e = &ev->xkey; XKeyEvent *e = &ev->xkey;
KeySym ksym; KeySym ksym;
char buf[32], *customkey; char buf[64], *customkey;
int len; int len;
Rune c; Rune c;
Status status; Status status;
@ -1724,7 +1796,10 @@ kpress(XEvent *ev)
if (IS_SET(MODE_KBDLOCK)) if (IS_SET(MODE_KBDLOCK))
return; return;
len = XmbLookupString(xw.xic, e, buf, sizeof buf, &ksym, &status); if (xw.ime.xic)
len = XmbLookupString(xw.ime.xic, e, buf, sizeof buf, &ksym, &status);
else
len = XLookupString(e, buf, sizeof buf, &ksym, NULL);
/* 1. shortcuts */ /* 1. shortcuts */
for (bp = shortcuts; bp < shortcuts + LEN(shortcuts); bp++) { for (bp = shortcuts; bp < shortcuts + LEN(shortcuts); bp++) {
if (ksym == bp->keysym && match(bp->mod, e->state)) { if (ksym == bp->keysym && match(bp->mod, e->state)) {
@ -1757,7 +1832,6 @@ kpress(XEvent *ev)
ttywrite(buf, len, 1); ttywrite(buf, len, 1);
} }
void void
cmessage(XEvent *e) cmessage(XEvent *e)
{ {
@ -1793,10 +1867,9 @@ run(void)
XEvent ev; XEvent ev;
int w = win.w, h = win.h; int w = win.w, h = win.h;
fd_set rfd; fd_set rfd;
int xfd = XConnectionNumber(xw.dpy), xev, blinkset = 0, dodraw = 0; int xfd = XConnectionNumber(xw.dpy), ttyfd, xev, drawing;
int ttyfd; struct timespec seltv, *tv, now, lastblink, trigger;
struct timespec drawtimeout, *tv = NULL, now, last, lastblink; double timeout;
long deltatime;
/* Waiting for window mapping */ /* Waiting for window mapping */
do { do {
@ -1817,82 +1890,77 @@ run(void)
ttyfd = ttynew(opt_line, shell, opt_io, opt_cmd); ttyfd = ttynew(opt_line, shell, opt_io, opt_cmd);
cresize(w, h); cresize(w, h);
clock_gettime(CLOCK_MONOTONIC, &last); for (timeout = -1, drawing = 0, lastblink = (struct timespec){0};;) {
lastblink = last;
for (xev = actionfps;;) {
FD_ZERO(&rfd); FD_ZERO(&rfd);
FD_SET(ttyfd, &rfd); FD_SET(ttyfd, &rfd);
FD_SET(xfd, &rfd); FD_SET(xfd, &rfd);
if (XPending(xw.dpy))
timeout = 0; /* existing events might not set xfd */
seltv.tv_sec = timeout / 1E3;
seltv.tv_nsec = 1E6 * (timeout - 1E3 * seltv.tv_sec);
tv = timeout >= 0 ? &seltv : NULL;
if (pselect(MAX(xfd, ttyfd)+1, &rfd, NULL, NULL, tv, NULL) < 0) { if (pselect(MAX(xfd, ttyfd)+1, &rfd, NULL, NULL, tv, NULL) < 0) {
if (errno == EINTR) if (errno == EINTR)
continue; continue;
die("select failed: %s\n", strerror(errno)); die("select failed: %s\n", strerror(errno));
} }
if (FD_ISSET(ttyfd, &rfd)) {
ttyread();
if (blinktimeout) {
blinkset = tattrset(ATTR_BLINK);
if (!blinkset)
MODBIT(win.mode, 0, MODE_BLINK);
}
}
if (FD_ISSET(xfd, &rfd))
xev = actionfps;
clock_gettime(CLOCK_MONOTONIC, &now); clock_gettime(CLOCK_MONOTONIC, &now);
drawtimeout.tv_sec = 0;
drawtimeout.tv_nsec = (1000 * 1E6)/ xfps;
tv = &drawtimeout;
dodraw = 0; if (FD_ISSET(ttyfd, &rfd))
if (blinktimeout && TIMEDIFF(now, lastblink) > blinktimeout) { ttyread();
tsetdirtattr(ATTR_BLINK);
win.mode ^= MODE_BLINK; xev = 0;
lastblink = now; while (XPending(xw.dpy)) {
dodraw = 1; xev = 1;
} XNextEvent(xw.dpy, &ev);
deltatime = TIMEDIFF(now, last); if (XFilterEvent(&ev, None))
if (deltatime > 1000 / (xev ? xfps : actionfps)) { continue;
dodraw = 1; if (handler[ev.type])
last = now; (handler[ev.type])(&ev);
} }
if (dodraw) { /*
while (XPending(xw.dpy)) { * To reduce flicker and tearing, when new content or event
XNextEvent(xw.dpy, &ev); * triggers drawing, we first wait a bit to ensure we got
if (XFilterEvent(&ev, None)) * everything, and if nothing new arrives - we draw.
continue; * We start with trying to wait minlatency ms. If more content
if (handler[ev.type]) * arrives sooner, we retry with shorter and shorter periods,
(handler[ev.type])(&ev); * and eventually draw even without idle after maxlatency ms.
* Typically this results in low latency while interacting,
* maximum latency intervals during `cat huge.txt`, and perfect
* sync with periodic updates from animations/key-repeats/etc.
*/
if (FD_ISSET(ttyfd, &rfd) || xev) {
if (!drawing) {
trigger = now;
drawing = 1;
} }
timeout = (maxlatency - TIMEDIFF(now, trigger)) \
/ maxlatency * minlatency;
if (timeout > 0)
continue; /* we have time, try to find idle */
}
draw(); /* idle detected or maxlatency exhausted -> draw */
XFlush(xw.dpy); timeout = -1;
if (blinktimeout && tattrset(ATTR_BLINK)) {
if (xev && !FD_ISSET(xfd, &rfd)) timeout = blinktimeout - TIMEDIFF(now, lastblink);
xev--; if (timeout <= 0) {
if (!FD_ISSET(ttyfd, &rfd) && !FD_ISSET(xfd, &rfd)) { if (-timeout > blinktimeout) /* start visible */
if (blinkset) { win.mode |= MODE_BLINK;
if (TIMEDIFF(now, lastblink) \ win.mode ^= MODE_BLINK;
> blinktimeout) { tsetdirtattr(ATTR_BLINK);
drawtimeout.tv_nsec = 1000; lastblink = now;
} else { timeout = blinktimeout;
drawtimeout.tv_nsec = (1E6 * \
(blinktimeout - \
TIMEDIFF(now,
lastblink)));
}
drawtimeout.tv_sec = \
drawtimeout.tv_nsec / 1E9;
drawtimeout.tv_nsec %= (long)1E9;
} else {
tv = NULL;
}
} }
} }
draw();
XFlush(xw.dpy);
drawing = 0;
} }
} }
@ -1914,15 +1982,12 @@ main(int argc, char *argv[])
{ {
xw.l = xw.t = 0; xw.l = xw.t = 0;
xw.isfixed = False; xw.isfixed = False;
win.cursor = cursorshape; xsetcursor(cursorshape);
ARGBEGIN { ARGBEGIN {
case 'a': case 'a':
allowaltscreen = 0; allowaltscreen = 0;
break; break;
case 'A':
opt_alpha = EARGF(usage());
break;
case 'c': case 'c':
opt_class = EARGF(usage()); opt_class = EARGF(usage());
break; break;

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