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3
.gitignore vendored
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@ -1,3 +0,0 @@
st
st.o
x.o

66
FAQ
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@ -2,14 +2,12 @@
Use the excellent tool of [utmp](https://git.suckless.org/utmp/) for this task. Use the excellent tool of [utmp](https://git.suckless.org/utmp/) for this task.
## Some _random program_ complains that st is unknown/not recognised/unsupported/whatever! ## 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 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 did not `make install`. If you just want to test it without installing it,
you can manually run `tic -sx st.info`. you can manually run `tic -sx st.info`.
## Nothing works, and nothing is said about an unknown terminal! ## 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 * Some programs just assume they’re running in xterm i.e. they don’t rely on
@ -17,7 +15,6 @@ you can manually run `tic -sx st.info`.
* Some programs don’t complain about the lacking st description and default to * Some programs don’t complain about the lacking st description and default to
another terminal. In that case see the question about terminfo. another terminal. In that case see the question about terminfo.
## How do I scroll back up? ## How do I scroll back up?
* Using a terminal multiplexer. * Using a terminal multiplexer.
@ -26,12 +23,10 @@ you can manually run `tic -sx st.info`.
* Using the excellent tool of [scroll](https://git.suckless.org/scroll/). * Using the excellent tool of [scroll](https://git.suckless.org/scroll/).
* Using the scrollback [patch](https://st.suckless.org/patches/scrollback/). * Using the scrollback [patch](https://st.suckless.org/patches/scrollback/).
## I would like to have utmp and/or scroll functionality by default ## I would like to have utmp and/or scroll functionality by default
You can add the absolute path of both programs in your config.h file. You only You can add the absolute patch of both programs in your config.h
have to modify the value of utmp and scroll variables. file. You only have to modify the value of utmp and scroll variables.
## Why doesn't the Del key work in some programs? ## Why doesn't the Del key work in some programs?
@ -88,14 +83,12 @@ If you are using zsh, then read the zsh FAQ
Putting these lines into your .zshrc will fix the problems. Putting these lines into your .zshrc will fix the problems.
## How can I use meta in 8bit mode? ## How can I use meta in 8bit mode?
St supports meta in 8bit mode, but the default terminfo entry doesn't 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 use this capability. If you want it, you have to use the 'st-meta' value
in TERM. in TERM.
## I cannot compile st in OpenBSD ## I cannot compile st in OpenBSD
OpenBSD lacks librt, despite it being mandatory in POSIX OpenBSD lacks librt, despite it being mandatory in POSIX
@ -104,7 +97,6 @@ If you want to compile st for OpenBSD you have to remove -lrt from config.mk, an
st will compile without any loss of functionality, because all the functions are st will compile without any loss of functionality, because all the functions are
included in libc on this platform. included in libc on this platform.
## The Backspace Case ## The Backspace Case
St is emulating the Linux way of handling backspace being delete and delete being St is emulating the Linux way of handling backspace being delete and delete being
@ -166,60 +158,19 @@ terminal users wants its backspace to be how he feels it:
[1] http://www.ibb.net/~anne/keyboard.html [1] http://www.ibb.net/~anne/keyboard.html
[2] http://www.tldp.org/HOWTO/Keyboard-and-Console-HOWTO-5.html [2] http://www.tldp.org/HOWTO/Keyboard-and-Console-HOWTO-5.html
## But I really want the old grumpy behaviour of my terminal ## But I really want the old grumpy behaviour of my terminal
Apply [1]. Apply [1].
[1] https://st.suckless.org/patches/delkey [1] https://st.suckless.org/patches/delkey
## Why do images not work in st (in programs such as w3m)?
## Why do images not work in st using the w3m image hack? This is a terrible hack that overdraws an image on top of the terminal emulator
window. It also relies on a very specific way the terminal draws it's contents.
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);
A more proper (but limited way) would be using sixels. Which st doesn't
support.
## BadLength X error in Xft when trying to render emoji ## BadLength X error in Xft when trying to render emoji
@ -248,6 +199,3 @@ fonts:
Please don't bother reporting this bug to st, but notify the upstream Xft Please don't bother reporting this bug to st, but notify the upstream Xft
developers about fixing this bug. developers about fixing this bug.
As of 2022-09-05 this now seems to be finally fixed in libXft 2.3.5:
https://gitlab.freedesktop.org/xorg/lib/libxft/-/blob/libXft-2.3.5/NEWS

2
LICENSE
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@ -1,6 +1,6 @@
MIT/X Consortium License MIT/X Consortium License
© 2014-2022 Hiltjo Posthuma <hiltjo at codemadness dot org> © 2014-2018 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>

29
config.def.h
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@ -43,18 +43,9 @@ static unsigned int tripleclicktimeout = 600;
/* alt screens */ /* alt screens */
int allowaltscreen = 1; int allowaltscreen = 1;
/* allow certain non-interactive (insecure) window operations such as: /* frames per second st should at maximum draw to the screen */
setting the clipboard text */ static unsigned int xfps = 120;
int allowwindowops = 0; static unsigned int actionfps = 30;
/*
* 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
@ -120,8 +111,6 @@ static const char *colorname[] = {
/* more colors can be added after 255 to use with DefaultXX */ /* more colors can be added after 255 to use with DefaultXX */
"#cccccc", "#cccccc",
"#555555", "#555555",
"gray90", /* default foreground colour */
"black", /* default background colour */
}; };
@ -129,9 +118,9 @@ 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 = 258; unsigned int defaultfg = 7;
unsigned int defaultbg = 259; unsigned int defaultbg = 0;
unsigned int defaultcs = 256; static unsigned int defaultcs = 256;
static unsigned int defaultrcs = 257; static unsigned int defaultrcs = 257;
/* /*
@ -176,12 +165,8 @@ static uint forcemousemod = ShiftMask;
*/ */
static MouseShortcut mshortcuts[] = { static MouseShortcut mshortcuts[] = {
/* mask button function argument release */ /* mask button function argument release */
{ XK_ANY_MOD, Button4, kscrollup, {.i = 1}, 0, /* !alt */ -1 },
{ XK_ANY_MOD, Button5, kscrolldown, {.i = 1}, 0, /* !alt */ -1 },
{ XK_ANY_MOD, Button2, selpaste, {.i = 0}, 1 }, { XK_ANY_MOD, Button2, selpaste, {.i = 0}, 1 },
{ ShiftMask, Button4, ttysend, {.s = "\033[5;2~"} },
{ XK_ANY_MOD, Button4, ttysend, {.s = "\031"} }, { XK_ANY_MOD, Button4, ttysend, {.s = "\031"} },
{ ShiftMask, Button5, ttysend, {.s = "\033[6;2~"} },
{ XK_ANY_MOD, Button5, ttysend, {.s = "\005"} }, { XK_ANY_MOD, Button5, ttysend, {.s = "\005"} },
}; };
@ -203,8 +188,6 @@ static Shortcut shortcuts[] = {
{ TERMMOD, XK_Y, selpaste, {.i = 0} }, { TERMMOD, XK_Y, selpaste, {.i = 0} },
{ ShiftMask, 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_Page_Up, kscrollup, {.i = -1} },
{ ShiftMask, XK_Page_Down, kscrolldown, {.i = -1} },
}; };
/* /*

478
config.h
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@ -1,478 +0,0 @@
/* 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=18: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",
"gray90", /* default foreground colour */
"black", /* default background colour */
};
/*
* Default colors (colorname index)
* foreground, background, cursor, reverse cursor
*/
unsigned int defaultfg = 258;
unsigned int defaultbg = 259;
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, Button4, kscrollup, {.i = 1}, 0, /* !alt */ -1 },
{ XK_ANY_MOD, Button5, kscrolldown, {.i = 1}, 0, /* !alt */ -1 },
{ 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} },
{ ShiftMask, XK_Page_Up, kscrollup, {.i = -1} },
{ ShiftMask, XK_Page_Down, kscrolldown, {.i = -1} },
};
/*
* 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{|}~";

7
config.mk
View File

@ -1,5 +1,5 @@
# st version # st version
VERSION = 0.9 VERSION = 0.8.3
# Customize below to fit your system # Customize below to fit your system
@ -28,9 +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`
#MANPREFIX = ${PREFIX}/man
# compiler and linker # compiler and linker
# CC = c99 # CC = c99

382
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) == 0x7f) #define ISCONTROLC0(c) (BETWEEN(c, 0, 0x1f) || (c) == '\177')
#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) (u && wcschr(worddelimiters, u)) #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,
@ -55,6 +51,7 @@ 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 {
@ -81,11 +78,12 @@ enum charset {
enum escape_state { enum escape_state {
ESC_START = 1, ESC_START = 1,
ESC_CSI = 2, ESC_CSI = 2,
ESC_STR = 4, /* DCS, OSC, PM, APC */ ESC_STR = 4, /* 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 {
@ -119,9 +117,6 @@ 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 */
@ -134,7 +129,6 @@ 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 */
@ -168,7 +162,6 @@ static void csidump(void);
static void csihandle(void); static void csihandle(void);
static void csiparse(void); static void csiparse(void);
static void csireset(void); static void csireset(void);
static void osc_color_response(int, int, int);
static int eschandle(uchar); static int eschandle(uchar);
static void strdump(void); static void strdump(void);
static void strhandle(void); static void strhandle(void);
@ -192,20 +185,20 @@ 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(const int *, int); static void tsetattr(int *, int);
static void tsetchar(Rune, const Glyph *, int, int); static void tsetchar(Rune, Glyph *, int, int);
static void tsetdirt(int, int); static void tsetdirt(int, int);
static void tsetscroll(int, int); static void tsetscroll(int, int);
static void tswapscreen(void); static void tswapscreen(void);
static void tsetmode(int, int, const int *, int); static void tsetmode(int, int, int *, int);
static int twrite(const char *, int, int); static int twrite(const char *, int, int);
static void tfulldirt(void); static void tfulldirt(void);
static void tcontrolcode(uchar ); static void tcontrolcode(uchar );
static void tdectest(char ); static void tdectest(char );
static void tdefutf8(char); static void tdefutf8(char);
static int32_t tdefcolor(const int *, int *, int); static int32_t tdefcolor(int *, int *, int);
static void tdeftran(char); static void tdeftran(char);
static void tstrsequence(uchar); static void tstrsequence(uchar);
@ -234,10 +227,10 @@ static int iofd = 1;
static int cmdfd; static int cmdfd;
static pid_t pid; static pid_t pid;
static const uchar utfbyte[UTF_SIZ + 1] = {0x80, 0, 0xC0, 0xE0, 0xF0}; static uchar utfbyte[UTF_SIZ + 1] = {0x80, 0, 0xC0, 0xE0, 0xF0};
static const uchar utfmask[UTF_SIZ + 1] = {0xC0, 0x80, 0xE0, 0xF0, 0xF8}; static uchar utfmask[UTF_SIZ + 1] = {0xC0, 0x80, 0xE0, 0xF0, 0xF8};
static const Rune utfmin[UTF_SIZ + 1] = { 0, 0, 0x80, 0x800, 0x10000}; static Rune utfmin[UTF_SIZ + 1] = { 0, 0, 0x80, 0x800, 0x10000};
static const Rune utfmax[UTF_SIZ + 1] = {0x10FFFF, 0x7F, 0x7FF, 0xFFFF, 0x10FFFF}; static Rune utfmax[UTF_SIZ + 1] = {0x10FFFF, 0x7F, 0x7FF, 0xFFFF, 0x10FFFF};
ssize_t ssize_t
xwrite(int fd, const char *s, size_t len) xwrite(int fd, const char *s, size_t len)
@ -277,14 +270,12 @@ xrealloc(void *p, size_t len)
} }
char * char *
xstrdup(const char *s) xstrdup(char *s)
{ {
char *p; if ((s = strdup(s)) == NULL)
if ((p = strdup(s)) == NULL)
die("strdup: %s\n", strerror(errno)); die("strdup: %s\n", strerror(errno));
return p; return s;
} }
size_t size_t
@ -357,10 +348,25 @@ utf8validate(Rune *u, size_t i)
return i; return i;
} }
static const char base64_digits[] = {
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 62, 0, 0, 0,
63, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 0, 0, 0, -1, 0, 0, 0, 0, 1,
2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21,
22, 23, 24, 25, 0, 0, 0, 0, 0, 0, 26, 27, 28, 29, 30, 31, 32, 33, 34,
35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
};
char char
base64dec_getc(const char **src) base64dec_getc(const char **src)
{ {
while (**src && !isprint((unsigned char)**src)) while (**src && !isprint(**src))
(*src)++; (*src)++;
return **src ? *((*src)++) : '='; /* emulate padding if string ends */ return **src ? *((*src)++) : '='; /* emulate padding if string ends */
} }
@ -370,13 +376,6 @@ base64dec(const char *src)
{ {
size_t in_len = strlen(src); size_t in_len = strlen(src);
char *result, *dst; char *result, *dst;
static const char base64_digits[256] = {
[43] = 62, 0, 0, 0, 63, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61,
0, 0, 0, -1, 0, 0, 0, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12,
13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 0, 0, 0, 0,
0, 0, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39,
40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51
};
if (in_len % 4) if (in_len % 4)
in_len += 4 - (in_len % 4); in_len += 4 - (in_len % 4);
@ -416,10 +415,10 @@ 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;
@ -520,7 +519,7 @@ selsnap(int *x, int *y, int direction)
{ {
int newx, newy, xt, yt; int newx, newy, xt, yt;
int delim, prevdelim; int delim, prevdelim;
const Glyph *gp, *prevgp; Glyph *gp, *prevgp;
switch (sel.snap) { switch (sel.snap) {
case SNAP_WORD: case SNAP_WORD:
@ -528,7 +527,7 @@ 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;
@ -543,14 +542,14 @@ 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)))
@ -571,14 +570,14 @@ 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;
} }
@ -593,7 +592,7 @@ getsel(void)
{ {
char *str, *ptr; char *str, *ptr;
int y, bufsize, lastx, linelen; int y, bufsize, lastx, linelen;
const Glyph *gp, *last; Glyph *gp, *last;
if (sel.ob.x == -1) if (sel.ob.x == -1)
return NULL; return NULL;
@ -609,13 +608,13 @@ 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;
@ -635,8 +634,7 @@ getsel(void)
* st. * st.
* FIXME: Fix the computer world. * FIXME: Fix the computer world.
*/ */
if ((y < sel.ne.y || lastx >= linelen) && if ((y < sel.ne.y || lastx >= linelen) && !(last->mode & ATTR_WRAP))
(!(last->mode & ATTR_WRAP) || sel.type == SEL_RECTANGULAR))
*ptr++ = '\n'; *ptr++ = '\n';
} }
*ptr = 0; *ptr = 0;
@ -732,7 +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
@ -760,7 +758,7 @@ stty(char **args)
} }
int int
ttynew(const char *line, char *cmd, const char *out, char **args) ttynew(char *line, char *cmd, char *out, char **args)
{ {
int m, s; int m, s;
@ -793,15 +791,14 @@ ttynew(const char *line, char *cmd, const char *out, char **args)
break; break;
case 0: case 0:
close(iofd); close(iofd);
close(m);
setsid(); /* create a new process group */ setsid(); /* create a new process group */
dup2(s, 0); dup2(s, 0);
dup2(s, 1); dup2(s, 1);
dup2(s, 2); dup2(s, 2);
if (ioctl(s, TIOCSCTTY, NULL) < 0) if (ioctl(s, TIOCSCTTY, NULL) < 0)
die("ioctl TIOCSCTTY failed: %s\n", strerror(errno)); die("ioctl TIOCSCTTY failed: %s\n", strerror(errno));
if (s > 2) close(s);
close(s); close(m);
#ifdef __OpenBSD__ #ifdef __OpenBSD__
if (pledge("stdio getpw proc exec", NULL) == -1) if (pledge("stdio getpw proc exec", NULL) == -1)
die("pledge\n"); die("pledge\n");
@ -844,6 +841,7 @@ ttyread(void)
if (buflen > 0) if (buflen > 0)
memmove(buf, buf + written, buflen); memmove(buf, buf + written, buflen);
return ret; return ret;
} }
} }
@ -851,9 +849,6 @@ 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);
@ -949,7 +944,7 @@ ttyresize(int tw, int th)
} }
void void
ttyhangup(void) ttyhangup()
{ {
/* Send SIGHUP to shell */ /* Send SIGHUP to shell */
kill(pid, SIGHUP); kill(pid, SIGHUP);
@ -1053,12 +1048,6 @@ tnew(int col, int row)
treset(); treset();
} }
int
tisaltscr(void)
{
return IS_SET(MODE_ALTSCREEN);
}
void void
tswapscreen(void) tswapscreen(void)
{ {
@ -1071,53 +1060,13 @@ tswapscreen(void)
} }
void void
kscrolldown(const Arg* a) tscrolldown(int orig, int n)
{
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
kscrollup(const Arg* a)
{
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);
@ -1127,28 +1076,17 @@ tscrolldown(int orig, int n, int copyhist)
term.line[i-n] = temp; term.line[i-n] = temp;
} }
if (term.scr == 0) selscroll(orig, n);
selscroll(orig, n);
} }
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);
@ -1158,8 +1096,7 @@ tscrollup(int orig, int n, int copyhist)
term.line[i+n] = temp; term.line[i+n] = temp;
} }
if (term.scr == 0) selscroll(orig, -n);
selscroll(orig, -n);
} }
void void
@ -1168,17 +1105,27 @@ selscroll(int orig, int n)
if (sel.ob.x == -1) if (sel.ob.x == -1)
return; return;
if (BETWEEN(sel.nb.y, orig, term.bot) != BETWEEN(sel.ne.y, orig, term.bot)) { if (BETWEEN(sel.ob.y, orig, term.bot) || BETWEEN(sel.oe.y, orig, term.bot)) {
selclear(); if ((sel.ob.y += n) > term.bot || (sel.oe.y += n) < term.top) {
} 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();
} else { return;
selnormalize();
} }
if (sel.type == SEL_RECTANGULAR) {
if (sel.ob.y < term.top)
sel.ob.y = term.top;
if (sel.oe.y > term.bot)
sel.oe.y = term.bot;
} else {
if (sel.ob.y < term.top) {
sel.ob.y = term.top;
sel.ob.x = 0;
}
if (sel.oe.y > term.bot) {
sel.oe.y = term.bot;
sel.oe.x = term.col;
}
}
selnormalize();
} }
} }
@ -1188,7 +1135,7 @@ 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++;
} }
@ -1250,9 +1197,9 @@ tmoveto(int x, int y)
} }
void void
tsetchar(Rune u, const Glyph *attr, int x, int y) tsetchar(Rune u, Glyph *attr, int x, int y)
{ {
static const char *vt100_0[62] = { /* 0x41 - 0x7e */ static char *vt100_0[62] = { /* 0x41 - 0x7e */
"↑", "↓", "→", "←", "█", "▚", "☃", /* A - G */ "↑", "↓", "→", "←", "█", "▚", "☃", /* A - G */
0, 0, 0, 0, 0, 0, 0, 0, /* H - O */ 0, 0, 0, 0, 0, 0, 0, 0, /* H - O */
0, 0, 0, 0, 0, 0, 0, 0, /* P - W */ 0, 0, 0, 0, 0, 0, 0, 0, /* P - W */
@ -1353,18 +1300,18 @@ 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
tdefcolor(const int *attr, int *npar, int l) tdefcolor(int *attr, int *npar, int l)
{ {
int32_t idx = -1; int32_t idx = -1;
uint r, g, b; uint r, g, b;
@ -1414,7 +1361,7 @@ tdefcolor(const int *attr, int *npar, int l)
} }
void void
tsetattr(const int *attr, int l) tsetattr(int *attr, int l)
{ {
int i; int i;
int32_t idx; int32_t idx;
@ -1532,9 +1479,9 @@ tsetscroll(int t, int b)
} }
void void
tsetmode(int priv, int set, const int *args, int narg) tsetmode(int priv, int set, int *args, int narg)
{ {
int alt; const int *lim; int alt, *lim;
for (lim = args + narg; args < lim; ++args) { for (lim = args + narg; args < lim; ++args) {
if (priv) { if (priv) {
@ -1710,12 +1657,6 @@ 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);
@ -1797,11 +1738,11 @@ 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);
@ -1837,18 +1778,11 @@ csihandle(void)
case 'm': /* SGR -- Terminal attribute (color) */ case 'm': /* SGR -- Terminal attribute (color) */
tsetattr(csiescseq.arg, csiescseq.narg); tsetattr(csiescseq.arg, csiescseq.narg);
break; break;
case 'n': /* DSR -- Device Status Report */ case 'n': /* DSR – Device Status Report (cursor position) */
switch (csiescseq.arg[0]) { if (csiescseq.arg[0] == 6) {
case 5: /* Status Report "OK" `0n` */ len = snprintf(buf, sizeof(buf),"\033[%i;%iR",
ttywrite("\033[0n", sizeof("\033[0n") - 1, 0); term.c.y+1, term.c.x+1);
break;
case 6: /* Report Cursor Position (CPR) "<row>;<column>R" */
len = snprintf(buf, sizeof(buf), "\033[%i;%iR",
term.c.y+1, term.c.x+1);
ttywrite(buf, len, 0); ttywrite(buf, len, 0);
break;
default:
goto unknown;
} }
break; break;
case 'r': /* DECSTBM -- Set Scrolling Region */ case 'r': /* DECSTBM -- Set Scrolling Region */
@ -1910,41 +1844,11 @@ csireset(void)
memset(&csiescseq, 0, sizeof(csiescseq)); memset(&csiescseq, 0, sizeof(csiescseq));
} }
void
osc_color_response(int num, int index, int is_osc4)
{
int n;
char buf[32];
unsigned char r, g, b;
if (xgetcolor(is_osc4 ? num : index, &r, &g, &b)) {
fprintf(stderr, "erresc: failed to fetch %s color %d\n",
is_osc4 ? "osc4" : "osc",
is_osc4 ? num : index);
return;
}
n = snprintf(buf, sizeof buf, "\033]%s%d;rgb:%02x%02x/%02x%02x/%02x%02x\007",
is_osc4 ? "4;" : "", num, r, r, g, g, b, b);
if (n < 0 || n >= sizeof(buf)) {
fprintf(stderr, "error: %s while printing %s response\n",
n < 0 ? "snprintf failed" : "truncation occurred",
is_osc4 ? "osc4" : "osc");
} else {
ttywrite(buf, n, 1);
}
}
void void
strhandle(void) strhandle(void)
{ {
char *p = NULL, *dec; char *p = NULL, *dec;
int j, narg, par; int j, narg, par;
const struct { int idx; char *str; } osc_table[] = {
{ defaultfg, "foreground" },
{ defaultbg, "background" },
{ defaultcs, "cursor" }
};
term.esc &= ~(ESC_STR_END|ESC_STR); term.esc &= ~(ESC_STR_END|ESC_STR);
strparse(); strparse();
@ -1954,21 +1858,13 @@ strhandle(void)
case ']': /* OSC -- Operating System Command */ case ']': /* OSC -- Operating System Command */
switch (par) { switch (par) {
case 0: case 0:
if (narg > 1) {
xsettitle(strescseq.args[1]);
xseticontitle(strescseq.args[1]);
}
return;
case 1: case 1:
if (narg > 1)
xseticontitle(strescseq.args[1]);
return;
case 2: case 2:
if (narg > 1) if (narg > 1)
xsettitle(strescseq.args[1]); xsettitle(strescseq.args[1]);
return; return;
case 52: case 52:
if (narg > 2 && allowwindowops) { if (narg > 2) {
dec = base64dec(strescseq.args[2]); dec = base64dec(strescseq.args[2]);
if (dec) { if (dec) {
xsetsel(dec); xsetsel(dec);
@ -1978,39 +1874,16 @@ strhandle(void)
} }
} }
return; return;
case 10:
case 11:
case 12:
if (narg < 2)
break;
p = strescseq.args[1];
if ((j = par - 10) < 0 || j >= LEN(osc_table))
break; /* shouldn't be possible */
if (!strcmp(p, "?")) {
osc_color_response(par, osc_table[j].idx, 0);
} else if (xsetcolorname(osc_table[j].idx, p)) {
fprintf(stderr, "erresc: invalid %s color: %s\n",
osc_table[j].str, p);
} else {
tfulldirt();
}
return;
case 4: /* color set */ case 4: /* color set */
if (narg < 3) if (narg < 3)
break; break;
p = strescseq.args[2]; p = strescseq.args[2];
/* FALLTHROUGH */ /* FALLTHROUGH */
case 104: /* color reset */ 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 (p && !strcmp(p, "?")) { if (par == 104 && narg <= 1)
osc_color_response(j, 0, 1);
} else if (xsetcolorname(j, p)) {
if (par == 104 && narg <= 1) {
xloadcols();
return; /* color reset without parameter */ return; /* color reset without parameter */
}
fprintf(stderr, "erresc: invalid color j=%d, p=%s\n", fprintf(stderr, "erresc: invalid color j=%d, p=%s\n",
j, p ? p : "(null)"); j, p ? p : "(null)");
} else { } else {
@ -2018,7 +1891,7 @@ strhandle(void)
* TODO if defaultbg color is changed, borders * TODO if defaultbg color is changed, borders
* are dirty * are dirty
*/ */
tfulldirt(); redraw();
} }
return; return;
} }
@ -2027,6 +1900,7 @@ 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;
@ -2144,12 +2018,12 @@ void
tdumpline(int n) tdumpline(int n)
{ {
char buf[UTF_SIZ]; char buf[UTF_SIZ];
const Glyph *bp, *end; Glyph *bp, *end;
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);
@ -2220,9 +2094,12 @@ 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 = '_';
@ -2234,7 +2111,6 @@ tstrsequence(uchar c)
c = ']'; c = ']';
break; break;
} }
strreset();
strescseq.type = c; strescseq.type = c;
term.esc |= ESC_STR; term.esc |= ESC_STR;
} }
@ -2277,7 +2153,6 @@ 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;
@ -2373,7 +2248,7 @@ 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);
} }
@ -2386,7 +2261,7 @@ 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);
} }
@ -2432,13 +2307,15 @@ tputc(Rune u)
Glyph *gp; Glyph *gp;
control = ISCONTROL(u); control = ISCONTROL(u);
if (u < 127 || !IS_SET(MODE_UTF8)) { if (!IS_SET(MODE_UTF8) && !IS_SET(MODE_SIXEL)) {
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))
@ -2453,11 +2330,23 @@ 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); term.esc &= ~(ESC_START|ESC_STR|ESC_DCS);
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 (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 >= strescseq.siz) { if (strescseq.len+len >= strescseq.siz) {
/* /*
* Here is a bug in terminals. If the user never sends * Here is a bug in terminals. If the user never sends
@ -2490,15 +2379,10 @@ check_control_code:
* they must not cause conflicts with sequences. * they must not cause conflicts with sequences.
*/ */
if (control) { if (control) {
/* in UTF-8 mode ignore handling C1 control characters */
if (IS_SET(MODE_UTF8) && ISCONTROLC1(u))
return;
tcontrolcode(u); tcontrolcode(u);
/* /*
* 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) {
@ -2529,7 +2413,7 @@ check_control_code:
*/ */
return; return;
} }
if (selected(term.c.x, term.c.y)) if (sel.ob.x != -1 && BETWEEN(term.c.y, sel.ob.y, sel.oe.y))
selclear(); selclear();
gp = &term.line[term.c.y][term.c.x]; gp = &term.line[term.c.y][term.c.x];
@ -2548,15 +2432,10 @@ 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;
if (term.c.x+1 < term.col) { if (term.c.x+1 < term.col) {
if (gp[1].mode == ATTR_WIDE && term.c.x+2 < term.col) {
gp[2].u = ' ';
gp[2].mode &= ~ATTR_WDUMMY;
}
gp[1].u = '\0'; gp[1].u = '\0';
gp[1].mode = ATTR_WDUMMY; gp[1].mode = ATTR_WDUMMY;
} }
@ -2576,7 +2455,7 @@ 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)) { if (IS_SET(MODE_UTF8) && !IS_SET(MODE_SIXEL)) {
/* 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)
@ -2603,7 +2482,7 @@ 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;
@ -2640,14 +2519,6 @@ 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));
@ -2706,7 +2577,7 @@ drawregion(int x1, int y1, int x2, int y2)
continue; continue;
term.dirty[y] = 0; term.dirty[y] = 0;
xdrawline(TLINE(y), x1, y, x2); xdrawline(term.line[y], x1, y, x2);
} }
} }
@ -2727,9 +2598,8 @@ 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.ocx = cx;
term.ocy = term.c.y; term.ocy = term.c.y;
xfinishdraw(); xfinishdraw();

9
st.h
View File

@ -81,20 +81,17 @@ 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 *);
void toggleprinter(const Arg *); void toggleprinter(const Arg *);
int tattrset(int); int tattrset(int);
int tisaltscr(void);
void tnew(int, int); void tnew(int, int);
void tresize(int, int); void tresize(int, int);
void tsetdirtattr(int); void tsetdirtattr(int);
void ttyhangup(void); void ttyhangup(void);
int ttynew(const char *, char *, const char *, char **); int ttynew(char *, char *, char *, char **);
size_t ttyread(void); size_t ttyread(void);
void ttyresize(int, int); void ttyresize(int, int);
void ttywrite(const char *, size_t, int); void ttywrite(const char *, size_t, int);
@ -112,7 +109,7 @@ size_t utf8encode(Rune, char *);
void *xmalloc(size_t); void *xmalloc(size_t);
void *xrealloc(void *, size_t); void *xrealloc(void *, size_t);
char *xstrdup(const char *); char *xstrdup(char *);
/* config.h globals */ /* config.h globals */
extern char *utmp; extern char *utmp;
@ -121,9 +118,7 @@ extern char *stty_args;
extern char *vtiden; extern char *vtiden;
extern wchar_t *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 unsigned int defaultcs;

3
st.info
View File

@ -158,7 +158,6 @@ st-mono| simpleterm monocolor,
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,
@ -184,8 +183,6 @@ st-mono| simpleterm monocolor,
# 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)
Tc, Tc,
Ms=\E]52;%p1%s;%p2%s\007, Ms=\E]52;%p1%s;%p2%s\007,

2
win.h
View File

@ -30,8 +30,6 @@ void xdrawline(Line, int, int, int);
void xfinishdraw(void); void xfinishdraw(void);
void xloadcols(void); void xloadcols(void);
int xsetcolorname(int, const char *); int xsetcolorname(int, const char *);
int xgetcolor(int, unsigned char *, unsigned char *, unsigned char *);
void xseticontitle(char *);
void xsettitle(char *); void xsettitle(char *);
int xsetcursor(int); int xsetcursor(int);
void xsetmode(int, unsigned int); void xsetmode(int, unsigned int);

280
x.c
View File

@ -34,7 +34,6 @@ typedef struct {
void (*func)(const Arg *); void (*func)(const Arg *);
const Arg arg; const Arg arg;
uint release; uint release;
int altscrn; /* 0: don't care, -1: not alt screen, 1: alt screen */
} MouseShortcut; } MouseShortcut;
typedef struct { typedef struct {
@ -49,7 +48,7 @@ typedef struct {
/* X modifiers */ /* X modifiers */
#define XK_ANY_MOD UINT_MAX #define XK_ANY_MOD UINT_MAX
#define XK_NO_MOD 0 #define XK_NO_MOD 0
#define XK_SWITCH_MOD (1<<13|1<<14) #define XK_SWITCH_MOD (1<<13)
/* function definitions used in config.h */ /* function definitions used in config.h */
static void clipcopy(const Arg *); static void clipcopy(const Arg *);
@ -94,7 +93,7 @@ typedef struct {
Window win; Window win;
Drawable buf; Drawable buf;
GlyphFontSpec *specbuf; /* font spec buffer used for rendering */ GlyphFontSpec *specbuf; /* font spec buffer used for rendering */
Atom xembed, wmdeletewin, netwmname, netwmiconname, netwmpid; Atom xembed, wmdeletewin, netwmname, netwmpid;
struct { struct {
XIM xim; XIM xim;
XIC xic; XIC xic;
@ -157,7 +156,7 @@ static void xresize(int, int);
static void xhints(void); static void xhints(void);
static int xloadcolor(int, const char *, Color *); static int xloadcolor(int, const char *, Color *);
static int xloadfont(Font *, FcPattern *); static int xloadfont(Font *, FcPattern *);
static void xloadfonts(const char *, double); static void xloadfonts(char *, double);
static void xunloadfont(Font *); static void xunloadfont(Font *);
static void xunloadfonts(void); static void xunloadfonts(void);
static void xsetenv(void); static void xsetenv(void);
@ -253,7 +252,7 @@ static char *opt_line = NULL;
static char *opt_name = NULL; static char *opt_name = NULL;
static char *opt_title = NULL; static char *opt_title = NULL;
static uint buttons; /* bit field of pressed buttons */ static int oldbutton = 3; /* button event on startup: 3 = release */
void void
clipcopy(const Arg *dummy) clipcopy(const Arg *dummy)
@ -365,68 +364,59 @@ mousesel(XEvent *e, int done)
void void
mousereport(XEvent *e) mousereport(XEvent *e)
{ {
int len, btn, code; int len, x = evcol(e), y = evrow(e),
int x = evcol(e), y = evrow(e); button = e->xbutton.button, state = e->xbutton.state;
int state = e->xbutton.state;
char buf[40]; char buf[40];
static int ox, oy; static int ox, oy;
if (e->type == MotionNotify) { /* from urxvt */
if (e->xbutton.type == MotionNotify) {
if (x == ox && y == oy) if (x == ox && y == oy)
return; return;
if (!IS_SET(MODE_MOUSEMOTION) && !IS_SET(MODE_MOUSEMANY)) if (!IS_SET(MODE_MOUSEMOTION) && !IS_SET(MODE_MOUSEMANY))
return; return;
/* MODE_MOUSEMOTION: no reporting if no button is pressed */ /* MOUSE_MOTION: no reporting if no button is pressed */
if (IS_SET(MODE_MOUSEMOTION) && buttons == 0) if (IS_SET(MODE_MOUSEMOTION) && oldbutton == 3)
return; return;
/* Set btn to lowest-numbered pressed button, or 12 if no
* buttons are pressed. */ button = oldbutton + 32;
for (btn = 1; btn <= 11 && !(buttons & (1<<(btn-1))); btn++) ox = x;
; oy = y;
code = 32;
} else { } else {
btn = e->xbutton.button; if (!IS_SET(MODE_MOUSESGR) && e->xbutton.type == ButtonRelease) {
/* Only buttons 1 through 11 can be encoded */ button = 3;
if (btn < 1 || btn > 11) } else {
return; button -= Button1;
if (e->type == ButtonRelease) { if (button >= 3)
button += 64 - 3;
}
if (e->xbutton.type == ButtonPress) {
oldbutton = button;
ox = x;
oy = y;
} else if (e->xbutton.type == ButtonRelease) {
oldbutton = 3;
/* MODE_MOUSEX10: no button release reporting */ /* MODE_MOUSEX10: no button release reporting */
if (IS_SET(MODE_MOUSEX10)) if (IS_SET(MODE_MOUSEX10))
return; return;
/* Don't send release events for the scroll wheel */ if (button == 64 || button == 65)
if (btn == 4 || btn == 5)
return; return;
} }
code = 0;
} }
ox = x;
oy = y;
/* Encode btn into code. If no button is pressed for a motion event in
* MODE_MOUSEMANY, then encode it as a release. */
if ((!IS_SET(MODE_MOUSESGR) && e->type == ButtonRelease) || btn == 12)
code += 3;
else if (btn >= 8)
code += 128 + btn - 8;
else if (btn >= 4)
code += 64 + btn - 4;
else
code += btn - 1;
if (!IS_SET(MODE_MOUSEX10)) { if (!IS_SET(MODE_MOUSEX10)) {
code += ((state & ShiftMask ) ? 4 : 0) button += ((state & ShiftMask ) ? 4 : 0)
+ ((state & Mod1Mask ) ? 8 : 0) /* meta key: alt */ + ((state & Mod4Mask ) ? 8 : 0)
+ ((state & ControlMask) ? 16 : 0); + ((state & ControlMask) ? 16 : 0);
} }
if (IS_SET(MODE_MOUSESGR)) { if (IS_SET(MODE_MOUSESGR)) {
len = snprintf(buf, sizeof(buf), "\033[<%d;%d;%d%c", len = snprintf(buf, sizeof(buf), "\033[<%d;%d;%d%c",
code, x+1, y+1, button, x+1, y+1,
e->type == ButtonRelease ? 'm' : 'M'); e->xbutton.type == ButtonRelease ? 'm' : 'M');
} else if (x < 223 && y < 223) { } else if (x < 223 && y < 223) {
len = snprintf(buf, sizeof(buf), "\033[M%c%c%c", len = snprintf(buf, sizeof(buf), "\033[M%c%c%c",
32+code, 32+x+1, 32+y+1); 32+button, 32+x+1, 32+y+1);
} else { } else {
return; return;
} }
@ -456,7 +446,6 @@ mouseaction(XEvent *e, uint release)
for (ms = mshortcuts; ms < mshortcuts + LEN(mshortcuts); ms++) { for (ms = mshortcuts; ms < mshortcuts + LEN(mshortcuts); ms++) {
if (ms->release == release && if (ms->release == release &&
ms->button == e->xbutton.button && ms->button == e->xbutton.button &&
(!ms->altscrn || (ms->altscrn == (tisaltscr() ? 1 : -1))) &&
(match(ms->mod, state) || /* exact or forced */ (match(ms->mod, state) || /* exact or forced */
match(ms->mod, state & ~forcemousemod))) { match(ms->mod, state & ~forcemousemod))) {
ms->func(&(ms->arg)); ms->func(&(ms->arg));
@ -470,13 +459,9 @@ mouseaction(XEvent *e, uint release)
void void
bpress(XEvent *e) bpress(XEvent *e)
{ {
int btn = e->xbutton.button;
struct timespec now; struct timespec now;
int snap; int snap;
if (1 <= btn && btn <= 11)
buttons |= 1 << (btn-1);
if (IS_SET(MODE_MOUSE) && !(e->xbutton.state & forcemousemod)) { if (IS_SET(MODE_MOUSE) && !(e->xbutton.state & forcemousemod)) {
mousereport(e); mousereport(e);
return; return;
@ -485,7 +470,7 @@ bpress(XEvent *e)
if (mouseaction(e, 0)) if (mouseaction(e, 0))
return; return;
if (btn == Button1) { if (e->xbutton.button == Button1) {
/* /*
* If the user clicks below predefined timeouts specific * If the user clicks below predefined timeouts specific
* snapping behaviour is exposed. * snapping behaviour is exposed.
@ -699,11 +684,6 @@ xsetsel(char *str)
void void
brelease(XEvent *e) brelease(XEvent *e)
{ {
int btn = e->xbutton.button;
if (1 <= btn && btn <= 11)
buttons &= ~(1 << (btn-1));
if (IS_SET(MODE_MOUSE) && !(e->xbutton.state & forcemousemod)) { if (IS_SET(MODE_MOUSE) && !(e->xbutton.state & forcemousemod)) {
mousereport(e); mousereport(e);
return; return;
@ -711,7 +691,7 @@ brelease(XEvent *e)
if (mouseaction(e, 1)) if (mouseaction(e, 1))
return; return;
if (btn == Button1) if (e->xbutton.button == Button1)
mousesel(e, 1); mousesel(e, 1);
} }
@ -817,19 +797,6 @@ xloadcols(void)
loaded = 1; loaded = 1;
} }
int
xgetcolor(int x, unsigned char *r, unsigned char *g, unsigned char *b)
{
if (!BETWEEN(x, 0, dc.collen))
return 1;
*r = dc.col[x].color.red >> 8;
*g = dc.col[x].color.green >> 8;
*b = dc.col[x].color.blue >> 8;
return 0;
}
int int
xsetcolorname(int x, const char *name) xsetcolorname(int x, const char *name)
{ {
@ -983,7 +950,7 @@ xloadfont(Font *f, FcPattern *pattern)
} }
void void
xloadfonts(const char *fontstr, double fontsize) xloadfonts(char *fontstr, double fontsize)
{ {
FcPattern *pattern; FcPattern *pattern;
double fontval; double fontval;
@ -991,7 +958,7 @@ xloadfonts(const char *fontstr, double fontsize)
if (fontstr[0] == '-') if (fontstr[0] == '-')
pattern = XftXlfdParse(fontstr, False, False); pattern = XftXlfdParse(fontstr, False, False);
else else
pattern = FcNameParse((const FcChar8 *)fontstr); pattern = FcNameParse((FcChar8 *)fontstr);
if (!pattern) if (!pattern)
die("can't open font %s\n", fontstr); die("can't open font %s\n", fontstr);
@ -1219,7 +1186,6 @@ xinit(int cols, int rows)
xw.xembed = XInternAtom(xw.dpy, "_XEMBED", False); xw.xembed = XInternAtom(xw.dpy, "_XEMBED", False);
xw.wmdeletewin = XInternAtom(xw.dpy, "WM_DELETE_WINDOW", False); xw.wmdeletewin = XInternAtom(xw.dpy, "WM_DELETE_WINDOW", False);
xw.netwmname = XInternAtom(xw.dpy, "_NET_WM_NAME", False); xw.netwmname = XInternAtom(xw.dpy, "_NET_WM_NAME", False);
xw.netwmiconname = XInternAtom(xw.dpy, "_NET_WM_ICON_NAME", False);
XSetWMProtocols(xw.dpy, xw.win, &xw.wmdeletewin, 1); XSetWMProtocols(xw.dpy, xw.win, &xw.wmdeletewin, 1);
xw.netwmpid = XInternAtom(xw.dpy, "_NET_WM_PID", False); xw.netwmpid = XInternAtom(xw.dpy, "_NET_WM_PID", False);
@ -1495,12 +1461,12 @@ xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, int x, i
/* Render underline and strikethrough. */ /* Render underline and strikethrough. */
if (base.mode & ATTR_UNDERLINE) { if (base.mode & ATTR_UNDERLINE) {
XftDrawRect(xw.draw, fg, winx, winy + dc.font.ascent * chscale + 1, XftDrawRect(xw.draw, fg, winx, winy + dc.font.ascent + 1,
width, 1); width, 1);
} }
if (base.mode & ATTR_STRUCK) { if (base.mode & ATTR_STRUCK) {
XftDrawRect(xw.draw, fg, winx, winy + 2 * dc.font.ascent * chscale / 3, XftDrawRect(xw.draw, fg, winx, winy + 2 * dc.font.ascent / 3,
width, 1); width, 1);
} }
@ -1560,9 +1526,8 @@ 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 */ case 7: /* st extension: snowman (U+2603) */
g.u = 0x2603; /* snowman (U+2603) */ g.u = 0x2603;
/* 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 */
@ -1613,29 +1578,14 @@ xsetenv(void)
setenv("WINDOWID", buf, 1); setenv("WINDOWID", buf, 1);
} }
void
xseticontitle(char *p)
{
XTextProperty prop;
DEFAULT(p, opt_title);
if (Xutf8TextListToTextProperty(xw.dpy, &p, 1, XUTF8StringStyle,
&prop) != Success)
return;
XSetWMIconName(xw.dpy, xw.win, &prop);
XSetTextProperty(xw.dpy, xw.win, &prop, xw.netwmiconname);
XFree(prop.value);
}
void void
xsettitle(char *p) xsettitle(char *p)
{ {
XTextProperty prop; XTextProperty prop;
DEFAULT(p, opt_title); DEFAULT(p, opt_title);
if (Xutf8TextListToTextProperty(xw.dpy, &p, 1, XUTF8StringStyle, Xutf8TextListToTextProperty(xw.dpy, &p, 1, XUTF8StringStyle,
&prop) != Success) &prop);
return;
XSetWMName(xw.dpy, xw.win, &prop); XSetWMName(xw.dpy, xw.win, &prop);
XSetTextProperty(xw.dpy, xw.win, &prop, xw.netwmname); XSetTextProperty(xw.dpy, xw.win, &prop, xw.netwmname);
XFree(prop.value); XFree(prop.value);
@ -1739,7 +1689,8 @@ xsetmode(int set, unsigned int flags)
int int
xsetcursor(int cursor) xsetcursor(int cursor)
{ {
if (!BETWEEN(cursor, 0, 7)) /* 7: st extension */ DEFAULT(cursor, 1);
if (!BETWEEN(cursor, 0, 6))
return 1; return 1;
win.cursor = cursor; win.cursor = cursor;
return 0; return 0;
@ -1835,7 +1786,7 @@ void
kpress(XEvent *ev) kpress(XEvent *ev)
{ {
XKeyEvent *e = &ev->xkey; XKeyEvent *e = &ev->xkey;
KeySym ksym = NoSymbol; KeySym ksym;
char buf[64], *customkey; char buf[64], *customkey;
int len; int len;
Rune c; Rune c;
@ -1845,13 +1796,10 @@ kpress(XEvent *ev)
if (IS_SET(MODE_KBDLOCK)) if (IS_SET(MODE_KBDLOCK))
return; return;
if (xw.ime.xic) { if (xw.ime.xic)
len = XmbLookupString(xw.ime.xic, e, buf, sizeof buf, &ksym, &status); len = XmbLookupString(xw.ime.xic, e, buf, sizeof buf, &ksym, &status);
if (status == XBufferOverflow) else
return;
} else {
len = XLookupString(e, buf, sizeof buf, &ksym, NULL); 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)) {
@ -1919,9 +1867,10 @@ 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), ttyfd, xev, drawing; int xfd = XConnectionNumber(xw.dpy), xev, blinkset = 0, dodraw = 0;
struct timespec seltv, *tv, now, lastblink, trigger; int ttyfd;
double timeout; struct timespec drawtimeout, *tv = NULL, now, last, lastblink;
long deltatime;
/* Waiting for window mapping */ /* Waiting for window mapping */
do { do {
@ -1942,77 +1891,82 @@ 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);
for (timeout = -1, drawing = 0, lastblink = (struct timespec){0};;) { clock_gettime(CLOCK_MONOTONIC, &last);
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));
} }
clock_gettime(CLOCK_MONOTONIC, &now); if (FD_ISSET(ttyfd, &rfd)) {
if (FD_ISSET(ttyfd, &rfd))
ttyread(); ttyread();
if (blinktimeout) {
xev = 0; blinkset = tattrset(ATTR_BLINK);
while (XPending(xw.dpy)) { if (!blinkset)
xev = 1; MODBIT(win.mode, 0, MODE_BLINK);
XNextEvent(xw.dpy, &ev);
if (XFilterEvent(&ev, None))
continue;
if (handler[ev.type])
(handler[ev.type])(&ev);
}
/*
* To reduce flicker and tearing, when new content or event
* triggers drawing, we first wait a bit to ensure we got
* everything, and if nothing new arrives - we draw.
* We start with trying to wait minlatency ms. If more content
* arrives sooner, we retry with shorter and shorter periods,
* 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 */
}
/* idle detected or maxlatency exhausted -> draw */
timeout = -1;
if (blinktimeout && tattrset(ATTR_BLINK)) {
timeout = blinktimeout - TIMEDIFF(now, lastblink);
if (timeout <= 0) {
if (-timeout > blinktimeout) /* start visible */
win.mode |= MODE_BLINK;
win.mode ^= MODE_BLINK;
tsetdirtattr(ATTR_BLINK);
lastblink = now;
timeout = blinktimeout;
} }
} }
draw(); if (FD_ISSET(xfd, &rfd))
XFlush(xw.dpy); xev = actionfps;
drawing = 0;
clock_gettime(CLOCK_MONOTONIC, &now);
drawtimeout.tv_sec = 0;
drawtimeout.tv_nsec = (1000 * 1E6)/ xfps;
tv = &drawtimeout;
dodraw = 0;
if (blinktimeout && TIMEDIFF(now, lastblink) > blinktimeout) {
tsetdirtattr(ATTR_BLINK);
win.mode ^= MODE_BLINK;
lastblink = now;
dodraw = 1;
}
deltatime = TIMEDIFF(now, last);
if (deltatime > 1000 / (xev ? xfps : actionfps)) {
dodraw = 1;
last = now;
}
if (dodraw) {
while (XPending(xw.dpy)) {
XNextEvent(xw.dpy, &ev);
if (XFilterEvent(&ev, None))
continue;
if (handler[ev.type])
(handler[ev.type])(&ev);
}
draw();
XFlush(xw.dpy);
if (xev && !FD_ISSET(xfd, &rfd))
xev--;
if (!FD_ISSET(ttyfd, &rfd) && !FD_ISSET(xfd, &rfd)) {
if (blinkset) {
if (TIMEDIFF(now, lastblink) \
> blinktimeout) {
drawtimeout.tv_nsec = 1000;
} else {
drawtimeout.tv_nsec = (1E6 * \
(blinktimeout - \
TIMEDIFF(now,
lastblink)));
}
drawtimeout.tv_sec = \
drawtimeout.tv_nsec / 1E9;
drawtimeout.tv_nsec %= (long)1E9;
} else {
tv = NULL;
}
}
}
} }
} }
@ -2034,7 +1988,7 @@ main(int argc, char *argv[])
{ {
xw.l = xw.t = 0; xw.l = xw.t = 0;
xw.isfixed = False; xw.isfixed = False;
xsetcursor(cursorshape); win.cursor = cursorshape;
ARGBEGIN { ARGBEGIN {
case 'a': case 'a':