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Code formatting + st refactoring.

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This commit is contained in:
Bartek Stalewski 2022-06-12 11:58:28 +02:00
parent b5878fc205
commit e15f7fb669
28 changed files with 5853 additions and 6321 deletions
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250
_suckless/st/FAQ
View file

@ -1,250 +0,0 @@
## 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 path of both programs in your config.h file. You only
have to modify the value of utmp and scroll variables.
## Why doesn't the Del key work in some programs?
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.

17
_suckless/st/LEGACY
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@ -1,17 +0,0 @@
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

34
_suckless/st/LICENSE Normal file
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@ -0,0 +1,34 @@
MIT/X Consortium License
© 2014-2022 Hiltjo Posthuma <hiltjo at codemadness dot org>
© 2018 Devin J. Pohly <djpohly at gmail dot com>
© 2014-2017 Quentin Rameau <quinq at fifth dot space>
© 2009-2012 Aurélien APTEL <aurelien dot aptel at gmail dot com>
© 2008-2017 Anselm R Garbe <garbeam at gmail dot com>
© 2012-2017 Roberto E. Vargas Caballero <k0ga at shike2 dot com>
© 2012-2016 Christoph Lohmann <20h at r-36 dot net>
© 2013 Eon S. Jeon <esjeon at hyunmu dot am>
© 2013 Alexander Sedov <alex0player at gmail dot com>
© 2013 Mark Edgar <medgar123 at gmail dot com>
© 2013-2014 Eric Pruitt <eric.pruitt at gmail dot com>
© 2013 Michael Forney <mforney at mforney dot org>
© 2013-2014 Markus Teich <markus dot teich at stusta dot mhn dot de>
© 2014-2015 Laslo Hunhold <dev at frign dot de>
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the "Software"),
to deal in the Software without restriction, including without limitation
the rights to use, copy, modify, merge, publish, distribute, sublicense,
and/or sell copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
DEALINGS IN THE SOFTWARE.

6
_suckless/st/README.md
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@ -4,8 +4,8 @@
These patches from suckless.org were applied from the newest versions, in order: These patches from suckless.org were applied from the newest versions, in order:
1. `st-w3m-0.8.3.diff`
1. `st-font2-20190416-ba72400.diff` 1. `st-font2-20190416-ba72400.diff`
1. `st-scrollback-0.8.4.diff` 1. `st-hidecursor-0.8.3.diff`
1. `st-scrollback-0.8.5.diff`
1. `st-externalpipe-0.8.4.diff` 1. `st-externalpipe-0.8.4.diff`
1. `fix-wide-glyphs.diff (local, see _patches/)` 1. `st-glyph-wide-support-20220411-ef05519.diff`

28
_suckless/st/TODO
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@ -1,28 +0,0 @@
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

204
_suckless/st/_patches/fix-wide-glyphs.diff
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@ -1,204 +0,0 @@
diff --git a/st.h b/st.h
index a25605c..96b285c 100644
--- a/st.h
+++ b/st.h
@@ -36,6 +36,12 @@ enum glyph_attribute {
ATTR_BOLD_FAINT = ATTR_BOLD | ATTR_FAINT,
};
+enum drawing_mode {
+ DRAW_NONE = 0,
+ DRAW_BG = 1 << 0,
+ DRAW_FG = 1 << 1,
+};
+
enum selection_mode {
SEL_IDLE = 0,
SEL_EMPTY = 1,
diff --git a/x.c b/x.c
index 12008ef..b668c83 100644
--- a/x.c
+++ b/x.c
@@ -142,7 +142,7 @@ typedef struct {
static inline ushort sixd_to_16bit(int);
static int xmakeglyphfontspecs(XftGlyphFontSpec *, const Glyph *, int, int, int);
-static void xdrawglyphfontspecs(const XftGlyphFontSpec *, Glyph, int, int, int);
+static void xdrawglyphfontspecs(const XftGlyphFontSpec *, Glyph, int, int, int, int);
static void xdrawglyph(Glyph, int, int);
static void xclear(int, int, int, int);
static int xgeommasktogravity(int);
@@ -1457,14 +1457,13 @@ xmakeglyphfontspecs(XftGlyphFontSpec *specs, const Glyph *glyphs, int len, int x
}
void
-xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, int x, int y)
+xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, int x, int y, int dmode)
{
int charlen = len * ((base.mode & ATTR_WIDE) ? 2 : 1);
int winx = borderpx + x * win.cw, winy = borderpx + y * win.ch,
width = charlen * win.cw;
Color *fg, *bg, *temp, revfg, revbg, truefg, truebg;
XRenderColor colfg, colbg;
- XRectangle r;
/* Fallback on color display for attributes not supported by the font */
if (base.mode & ATTR_ITALIC && base.mode & ATTR_BOLD) {
@@ -1548,47 +1547,47 @@ xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, int x, i
if (base.mode & ATTR_INVISIBLE)
fg = bg;
- /* Intelligent cleaning up of the borders. */
- if (x == 0) {
- xclear(0, (y == 0)? 0 : winy, borderpx,
- winy + win.ch +
- ((winy + win.ch >= borderpx + win.th)? win.h : 0));
- }
- if (winx + width >= borderpx + win.tw) {
- xclear(winx + width, (y == 0)? 0 : winy, win.w,
- ((winy + win.ch >= borderpx + win.th)? win.h : (winy + win.ch)));
- }
- if (y == 0)
- xclear(winx, 0, winx + width, borderpx);
- if (winy + win.ch >= borderpx + win.th)
- xclear(winx, winy + win.ch, winx + width, win.h);
-
- /* Clean up the region we want to draw to. */
- XftDrawRect(xw.draw, bg, winx, winy, width, win.ch);
-
- /* Set the clip region because Xft is sometimes dirty. */
- r.x = 0;
- r.y = 0;
- r.height = win.ch;
- r.width = width;
- XftDrawSetClipRectangles(xw.draw, winx, winy, &r, 1);
-
- /* Render the glyphs. */
- XftDrawGlyphFontSpec(xw.draw, fg, specs, len);
-
- /* Render underline and strikethrough. */
- if (base.mode & ATTR_UNDERLINE) {
- XftDrawRect(xw.draw, fg, winx, winy + dc.font.ascent + 1,
- width, 1);
- }
+ if (dmode & DRAW_BG) {
+ /* Intelligent cleaning up of the borders. */
+ if (x == 0) {
+ xclear(0, (y == 0)? 0 : winy, borderpx,
+ winy + win.ch +
+ ((winy + win.ch >= borderpx + win.th)? win.h : 0));
+ }
+ if (winx + width >= borderpx + win.tw) {
+ xclear(winx + width, (y == 0)? 0 : winy, win.w,
+ ((winy + win.ch >= borderpx + win.th)? win.h : (winy + win.ch)));
+ }
+ if (y == 0)
+ xclear(winx, 0, winx + width, borderpx);
+ if (winy + win.ch >= borderpx + win.th)
+ xclear(winx, winy + win.ch, winx + width, win.h);
- if (base.mode & ATTR_STRUCK) {
- XftDrawRect(xw.draw, fg, winx, winy + 2 * dc.font.ascent / 3,
- width, 1);
+ /* Fill the background */
+ XftDrawRect(xw.draw, bg, winx, winy, width, win.ch);
}
- /* Reset clip to none. */
- XftDrawSetClip(xw.draw, 0);
+ if (dmode & DRAW_FG) {
+/*
+ if (base.mode & ATTR_BOXDRAW) {
+ drawboxes(winx, winy, width / len, win.ch, fg, bg, specs, len);
+ } else {
+*/
+ /* Render the glyphs. */
+ XftDrawGlyphFontSpec(xw.draw, fg, specs, len);
+// }
+
+ /* Render underline and strikethrough. */
+ if (base.mode & ATTR_UNDERLINE) {
+ XftDrawRect(xw.draw, fg, winx, winy + dc.font.ascent + 1,
+ width, 1);
+ }
+
+ if (base.mode & ATTR_STRUCK) {
+ XftDrawRect(xw.draw, fg, winx, winy + 2 * dc.font.ascent / 3,
+ width, 1);
+ }
+ }
}
void
@@ -1598,7 +1597,7 @@ xdrawglyph(Glyph g, int x, int y)
XftGlyphFontSpec spec;
numspecs = xmakeglyphfontspecs(&spec, &g, 1, x, y);
- xdrawglyphfontspecs(&spec, g, numspecs, x, y);
+ xdrawglyphfontspecs(&spec, g, numspecs, x, y, DRAW_BG | DRAW_FG);
}
void
@@ -1735,32 +1734,39 @@ xstartdraw(void)
void
xdrawline(Line line, int x1, int y1, int x2)
{
- int i, x, ox, numspecs;
+ int i, x, ox, numspecs, numspecs_cached;
Glyph base, new;
- XftGlyphFontSpec *specs = xw.specbuf;
-
- numspecs = xmakeglyphfontspecs(specs, &line[x1], x2 - x1, x1, y1);
- i = ox = 0;
- for (x = x1; x < x2 && i < numspecs; x++) {
- new = line[x];
- if (new.mode == ATTR_WDUMMY)
- continue;
- if (selected(x, y1))
- new.mode ^= ATTR_REVERSE;
- if (i > 0 && ATTRCMP(base, new)) {
- xdrawglyphfontspecs(specs, base, i, ox, y1);
- specs += i;
- numspecs -= i;
- i = 0;
- }
- if (i == 0) {
- ox = x;
- base = new;
+ XftGlyphFontSpec *specs;
+
+ numspecs_cached = xmakeglyphfontspecs(xw.specbuf, &line[x1], x2 - x1, x1, y1);
+
+ /* Draw line in 2 passes: background and foreground. This way wide glyphs
+ won't get truncated (#223) */
+ for (int dmode = DRAW_BG; dmode <= DRAW_FG; dmode <<= 1) {
+ specs = xw.specbuf;
+ numspecs = numspecs_cached;
+ i = ox = 0;
+ for (x = x1; x < x2 && i < numspecs; x++) {
+ new = line[x];
+ if (new.mode == ATTR_WDUMMY)
+ continue;
+ if (selected(x, y1))
+ new.mode ^= ATTR_REVERSE;
+ if (i > 0 && ATTRCMP(base, new)) {
+ xdrawglyphfontspecs(specs, base, i, ox, y1, dmode);
+ specs += i;
+ numspecs -= i;
+ i = 0;
+ }
+ if (i == 0) {
+ ox = x;
+ base = new;
+ }
+ i++;
}
- i++;
+ if (i > 0)
+ xdrawglyphfontspecs(specs, base, i, ox, y1, dmode);
}
- if (i > 0)
- xdrawglyphfontspecs(specs, base, i, ox, y1);
}
void

2
_suckless/st/config.def.h
View file

@ -9,7 +9,7 @@ static char *font = "Liberation Mono:pixelsize=12:antialias=true:autohint=true";
/* Spare fonts */ /* Spare fonts */
static char *font2[] = { static char *font2[] = {
/* "Inconsolata for Powerline:pixelsize=12:antialias=true:autohint=true", */ /* "Inconsolata for Powerline:pixelsize=12:antialias=true:autohint=true", */
/* "Hack Nerd Font Mono:pixelsize=11:antialias=true:autohint=true", */ "Hack Nerd Font Mono:pixelsize=11:antialias=true:autohint=true",
}; };
static int borderpx = 2; static int borderpx = 2;

1
_suckless/st/config.h
View file

@ -187,7 +187,6 @@ static MouseShortcut mshortcuts[] = {
#define MODKEY ControlMask #define MODKEY ControlMask
#define SHTKEY (ControlMask|ShiftMask) #define SHTKEY (ControlMask|ShiftMask)
//static char *openurlcmd[] = { "/bin/sh", "-c", "st-url -o", "externalpipe", NULL };
static char *openurlcmd[] = {"/bin/sh", "-c", "xurls | dmenu -c -l 20 -i | xargs -r $BROWSER", static char *openurlcmd[] = {"/bin/sh", "-c", "xurls | dmenu -c -l 20 -i | xargs -r $BROWSER",
"externalpipe", NULL}; "externalpipe", NULL};

1
_suckless/st/config.mk
View file

@ -30,6 +30,7 @@ STLDFLAGS = $(LIBS) $(LDFLAGS)
#LIBS = -L$(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

116
_suckless/st/st.c
View file

@ -168,6 +168,7 @@ 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);
@ -356,25 +357,10 @@ 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(**src)) while (**src && !isprint((unsigned char)**src))
(*src)++; (*src)++;
return **src ? *((*src)++) : '='; /* emulate padding if string ends */ return **src ? *((*src)++) : '='; /* emulate padding if string ends */
} }
@ -384,6 +370,13 @@ 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);
@ -1117,7 +1110,6 @@ tscrolldown(int orig, int n, int copyhist)
Line temp; Line temp;
LIMIT(n, 0, term.bot-orig+1); LIMIT(n, 0, term.bot-orig+1);
if (copyhist) { if (copyhist) {
term.histi = (term.histi - 1 + HISTSIZE) % HISTSIZE; term.histi = (term.histi - 1 + HISTSIZE) % HISTSIZE;
temp = term.hist[term.histi]; temp = term.hist[term.histi];
@ -1125,6 +1117,7 @@ tscrolldown(int orig, int n, int copyhist)
term.line[term.bot] = temp; 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);
@ -1911,39 +1904,28 @@ csireset(void)
} }
void void
osc4_color_response(int num) osc_color_response(int num, int index, int is_osc4)
{ {
int n; int n;
char buf[32]; char buf[32];
unsigned char r, g, b; unsigned char r, g, b;
if (xgetcolor(num, &r, &g, &b)) { if (xgetcolor(is_osc4 ? num : index, &r, &g, &b)) {
fprintf(stderr, "erresc: failed to fetch osc4 color %d\n", num); fprintf(stderr, "erresc: failed to fetch %s color %d\n",
is_osc4 ? "osc4" : "osc",
is_osc4 ? num : index);
return; return;
} }
n = snprintf(buf, sizeof buf, "\033]4;%d;rgb:%02x%02x/%02x%02x/%02x%02x\007", n = snprintf(buf, sizeof buf, "\033]%s%d;rgb:%02x%02x/%02x%02x/%02x%02x\007",
num, r, r, g, g, b, b); 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); ttywrite(buf, n, 1);
} }
void
osc_color_response(int index, int num)
{
int n;
char buf[32];
unsigned char r, g, b;
if (xgetcolor(index, &r, &g, &b)) {
fprintf(stderr, "erresc: failed to fetch osc color %d\n", index);
return;
}
n = snprintf(buf, sizeof buf, "\033]%d;rgb:%02x%02x/%02x%02x/%02x%02x\007",
num, r, r, g, g, b, b);
ttywrite(buf, n, 1);
} }
void void
@ -1951,6 +1933,11 @@ 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();
@ -1985,43 +1972,22 @@ strhandle(void)
} }
return; return;
case 10: case 10:
if (narg < 2)
break;
p = strescseq.args[1];
if (!strcmp(p, "?"))
osc_color_response(defaultfg, 10);
else if (xsetcolorname(defaultfg, p))
fprintf(stderr, "erresc: invalid foreground color: %s\n", p);
else
redraw();
return;
case 11: case 11:
if (narg < 2)
break;
p = strescseq.args[1];
if (!strcmp(p, "?"))
osc_color_response(defaultbg, 11);
else if (xsetcolorname(defaultbg, p))
fprintf(stderr, "erresc: invalid background color: %s\n", p);
else
redraw();
return;
case 12: case 12:
if (narg < 2) if (narg < 2)
break; break;
p = strescseq.args[1]; p = strescseq.args[1];
if ((j = par - 10) < 0 || j >= LEN(osc_table))
break; /* shouldn't be possible */
if (!strcmp(p, "?")) if (!strcmp(p, "?")) {
osc_color_response(defaultcs, 12); osc_color_response(par, osc_table[j].idx, 0);
else if (xsetcolorname(defaultcs, p)) } else if (xsetcolorname(osc_table[j].idx, p)) {
fprintf(stderr, "erresc: invalid cursor color: %s\n", p); fprintf(stderr, "erresc: invalid %s color: %s\n",
else osc_table[j].str, p);
redraw(); } else {
tfulldirt();
}
return; return;
case 4: /* color set */ case 4: /* color set */
if (narg < 3) if (narg < 3)
@ -2031,9 +1997,9 @@ strhandle(void)
case 104: /* color reset */ case 104: /* color reset */
j = (narg > 1) ? atoi(strescseq.args[1]) : -1; j = (narg > 1) ? atoi(strescseq.args[1]) : -1;
if (p && !strcmp(p, "?")) if (p && !strcmp(p, "?")) {
osc4_color_response(j); osc_color_response(j, 0, 1);
else if (xsetcolorname(j, p)) { } else if (xsetcolorname(j, p)) {
if (par == 104 && narg <= 1) if (par == 104 && narg <= 1)
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",
@ -2043,7 +2009,7 @@ strhandle(void)
* TODO if defaultbg color is changed, borders * TODO if defaultbg color is changed, borders
* are dirty * are dirty
*/ */
redraw(); tfulldirt();
} }
return; return;
} }

4
_suckless/st/st.h
View file

@ -87,9 +87,9 @@ void die(const char *, ...);
void redraw(void); void redraw(void);
void draw(void); void draw(void);
void externalpipe(const Arg *);
void kscrolldown(const Arg *); void kscrolldown(const Arg *);
void kscrollup(const Arg *); void kscrollup(const Arg *);
void externalpipe(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 *);
@ -120,8 +120,6 @@ void *xmalloc(size_t);
void *xrealloc(void *, size_t); void *xrealloc(void *, size_t);
char *xstrdup(const char *); char *xstrdup(const char *);
int xgetcolor(int x, unsigned char *r, unsigned char *g, unsigned char *b);
/* config.h globals */ /* config.h globals */
extern char *utmp; extern char *utmp;
extern char *scroll; extern char *scroll;

1
_suckless/st/win.h
View file

@ -30,6 +30,7 @@ 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 xseticontitle(char *);
void xsettitle(char *); void xsettitle(char *);
int xsetcursor(int); int xsetcursor(int);

126
_suckless/st/x.c
View file

@ -103,6 +103,11 @@ typedef struct {
Draw draw; Draw draw;
Visual *vis; Visual *vis;
XSetWindowAttributes attrs; XSetWindowAttributes attrs;
/* Here, we use the term *pointer* to differentiate the cursor
* one sees when hovering the mouse over the terminal from, e.g.,
* a green rectangle where text would be entered. */
Cursor vpointer, bpointer; /* visible and hidden pointers */
int pointerisvisible;
int scr; int scr;
int isfixed; /* is fixed geometry? */ int isfixed; /* is fixed geometry? */
int l, t; /* left and top offset */ int l, t; /* left and top offset */
@ -254,7 +259,7 @@ 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 int oldbutton = 3; /* button event on startup: 3 = release */ static uint buttons; /* bit field of pressed buttons */
void void
clipcopy(const Arg *dummy) clipcopy(const Arg *dummy)
@ -367,61 +372,68 @@ mousesel(XEvent *e, int done)
void void
mousereport(XEvent *e) mousereport(XEvent *e)
{ {
int len, x = evcol(e), y = evrow(e), int len, btn, code;
button = e->xbutton.button, state = e->xbutton.state; int x = evcol(e), y = evrow(e);
int state = e->xbutton.state;
char buf[40]; char buf[40];
static int ox, oy; static int ox, oy;
/* from urxvt */ if (e->type == MotionNotify) {
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;
/* MOUSE_MOTION: no reporting if no button is pressed */ /* MODE_MOUSEMOTION: no reporting if no button is pressed */
if (IS_SET(MODE_MOUSEMOTION) && oldbutton == 3) if (IS_SET(MODE_MOUSEMOTION) && buttons == 0)
return; return;
/* Set btn to lowest-numbered pressed button, or 12 if no
button = oldbutton + 32; * buttons are pressed. */
ox = x; for (btn = 1; btn <= 11 && !(buttons & (1<<(btn-1))); btn++)
oy = y; ;
code = 32;
} else { } else {
if (!IS_SET(MODE_MOUSESGR) && e->xbutton.type == ButtonRelease) { btn = e->xbutton.button;
button = 3; /* Only buttons 1 through 11 can be encoded */
} else { if (btn < 1 || btn > 11)
button -= Button1; return;
if (button >= 7) if (e->type == ButtonRelease) {
button += 128 - 7;
else 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;
if (button == 64 || button == 65) /* Don't send release events for the scroll wheel */
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)) {
button += ((state & ShiftMask ) ? 4 : 0) code += ((state & ShiftMask ) ? 4 : 0)
+ ((state & Mod4Mask ) ? 8 : 0) + ((state & Mod1Mask ) ? 8 : 0) /* meta key: alt */
+ ((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",
button, x+1, y+1, code, x+1, y+1,
e->xbutton.type == ButtonRelease ? 'm' : 'M'); e->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+button, 32+x+1, 32+y+1); 32+code, 32+x+1, 32+y+1);
} else { } else {
return; return;
} }
@ -464,9 +476,13 @@ 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;
@ -475,7 +491,7 @@ bpress(XEvent *e)
if (mouseaction(e, 0)) if (mouseaction(e, 0))
return; return;
if (e->xbutton.button == Button1) { if (btn == 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.
@ -689,6 +705,11 @@ 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;
@ -696,13 +717,20 @@ brelease(XEvent *e)
if (mouseaction(e, 1)) if (mouseaction(e, 1))
return; return;
if (e->xbutton.button == Button1) if (btn == Button1)
mousesel(e, 1); mousesel(e, 1);
} }
void void
bmotion(XEvent *e) bmotion(XEvent *e)
{ {
if (!xw.pointerisvisible) {
XDefineCursor(xw.dpy, xw.win, xw.vpointer);
xw.pointerisvisible = 1;
if (!IS_SET(MODE_MOUSEMANY))
xsetpointermotion(0);
}
if (IS_SET(MODE_MOUSE) && !(e->xbutton.state & forcemousemod)) { if (IS_SET(MODE_MOUSE) && !(e->xbutton.state & forcemousemod)) {
mousereport(e); mousereport(e);
return; return;
@ -1212,10 +1240,10 @@ void
xinit(int cols, int rows) xinit(int cols, int rows)
{ {
XGCValues gcvalues; XGCValues gcvalues;
Cursor cursor;
Window parent; Window parent;
pid_t thispid = getpid(); pid_t thispid = getpid();
XColor xmousefg, xmousebg; XColor xmousefg, xmousebg;
Pixmap blankpm;
if (!(xw.dpy = XOpenDisplay(NULL))) if (!(xw.dpy = XOpenDisplay(NULL)))
die("can't open display\n"); die("can't open display\n");
@ -1282,8 +1310,9 @@ xinit(int cols, int rows)
} }
/* white cursor, black outline */ /* white cursor, black outline */
cursor = XCreateFontCursor(xw.dpy, mouseshape); xw.pointerisvisible = 1;
XDefineCursor(xw.dpy, xw.win, cursor); xw.vpointer = XCreateFontCursor(xw.dpy, mouseshape);
XDefineCursor(xw.dpy, xw.win, xw.vpointer);
if (XParseColor(xw.dpy, xw.cmap, colorname[mousefg], &xmousefg) == 0) { if (XParseColor(xw.dpy, xw.cmap, colorname[mousefg], &xmousefg) == 0) {
xmousefg.red = 0xffff; xmousefg.red = 0xffff;
@ -1297,7 +1326,10 @@ xinit(int cols, int rows)
xmousebg.blue = 0x0000; xmousebg.blue = 0x0000;
} }
XRecolorCursor(xw.dpy, cursor, &xmousefg, &xmousebg); XRecolorCursor(xw.dpy, xw.vpointer, &xmousefg, &xmousebg);
blankpm = XCreateBitmapFromData(xw.dpy, xw.win, &(char){0}, 1, 1);
xw.bpointer = XCreatePixmapCursor(xw.dpy, blankpm, blankpm,
&xmousefg, &xmousebg, 0, 0);
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);
@ -1464,6 +1496,7 @@ xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, int x, i
width = charlen * win.cw; width = charlen * win.cw;
Color *fg, *bg, *temp, revfg, revbg, truefg, truebg; Color *fg, *bg, *temp, revfg, revbg, truefg, truebg;
XRenderColor colfg, colbg; XRenderColor colfg, colbg;
XRectangle r;
/* Fallback on color display for attributes not supported by the font */ /* Fallback on color display for attributes not supported by the font */
if (base.mode & ATTR_ITALIC && base.mode & ATTR_BOLD) { if (base.mode & ATTR_ITALIC && base.mode & ATTR_BOLD) {
@ -1562,20 +1595,13 @@ xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, int x, i
xclear(winx, 0, winx + width, borderpx); xclear(winx, 0, winx + width, borderpx);
if (winy + win.ch >= borderpx + win.th) if (winy + win.ch >= borderpx + win.th)
xclear(winx, winy + win.ch, winx + width, win.h); xclear(winx, winy + win.ch, winx + width, win.h);
/* Fill the background */ /* Fill the background */
XftDrawRect(xw.draw, bg, winx, winy, width, win.ch); XftDrawRect(xw.draw, bg, winx, winy, width, win.ch);
} }
if (dmode & DRAW_FG) { if (dmode & DRAW_FG) {
/*
if (base.mode & ATTR_BOXDRAW) {
drawboxes(winx, winy, width / len, win.ch, fg, bg, specs, len);
} else {
*/
/* Render the glyphs. */ /* Render the glyphs. */
XftDrawGlyphFontSpec(xw.draw, fg, specs, len); XftDrawGlyphFontSpec(xw.draw, fg, specs, len);
// }
/* Render underline and strikethrough. */ /* Render underline and strikethrough. */
if (base.mode & ATTR_UNDERLINE) { if (base.mode & ATTR_UNDERLINE) {
@ -1726,8 +1752,6 @@ xsettitle(char *p)
int int
xstartdraw(void) xstartdraw(void)
{ {
if (IS_SET(MODE_VISIBLE))
XCopyArea(xw.dpy, xw.win, xw.buf, dc.gc, 0, 0, win.w, win.h, 0, 0);
return IS_SET(MODE_VISIBLE); return IS_SET(MODE_VISIBLE);
} }
@ -1814,6 +1838,8 @@ unmap(XEvent *ev)
void void
xsetpointermotion(int set) xsetpointermotion(int set)
{ {
if (!set && !xw.pointerisvisible)
return;
MODBIT(xw.attrs.event_mask, set, PointerMotionMask); MODBIT(xw.attrs.event_mask, set, PointerMotionMask);
XChangeWindowAttributes(xw.dpy, xw.win, CWEventMask, &xw.attrs); XChangeWindowAttributes(xw.dpy, xw.win, CWEventMask, &xw.attrs);
} }
@ -1933,6 +1959,12 @@ kpress(XEvent *ev)
Status status; Status status;
Shortcut *bp; Shortcut *bp;
if (xw.pointerisvisible) {
XDefineCursor(xw.dpy, xw.win, xw.bpointer);
xsetpointermotion(1);
xw.pointerisvisible = 0;
}
if (IS_SET(MODE_KBDLOCK)) if (IS_SET(MODE_KBDLOCK))
return; return;