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-rw-r--r--.gitignore4
-rw-r--r--LICENSE31
-rw-r--r--README34
-rw-r--r--TODO28
-rw-r--r--st.1158
-rw-r--r--st.c4354
-rw-r--r--st.info213
7 files changed, 4822 insertions, 0 deletions
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..3ac9aa9
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,4 @@
+*~
+*\#*
+*.o
+wterm \ No newline at end of file
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..e61610a
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,31 @@
+MIT/X Consortium License
+
+© 2009-2012 Aurélien APTEL <aurelien dot aptel at gmail dot com>
+© 2009 Anselm R Garbe <garbeam at gmail dot com>
+© 2012-2015 Roberto E. Vargas Caballero <k0ga at shike2 dot com>
+© 2012-2015 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 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.
diff --git a/README b/README
new file mode 100644
index 0000000..b38c88b
--- /dev/null
+++ b/README
@@ -0,0 +1,34 @@
+st - simple terminal
+--------------------
+st is a simple terminal emulator for X which sucks less.
+
+
+Requirements
+------------
+In order to build st you need the Xlib header files.
+
+
+Installation
+------------
+Edit config.mk to match your local setup (st is installed into
+the /usr/local namespace by default).
+
+Afterwards enter the following command to build and install st (if
+necessary as root):
+
+ make clean install
+
+
+Running st
+----------
+If you did not install st with make clean install, you must compile
+the st terminfo entry with the following command:
+
+ tic -s st.info
+
+See the man page for additional details.
+
+Credits
+-------
+Based on Aurélien APTEL <aurelien dot aptel at gmail dot com> bt source code.
+
diff --git a/TODO b/TODO
new file mode 100644
index 0000000..5f74cd5
--- /dev/null
+++ b/TODO
@@ -0,0 +1,28 @@
+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
+
diff --git a/st.1 b/st.1
new file mode 100644
index 0000000..82e228a
--- /dev/null
+++ b/st.1
@@ -0,0 +1,158 @@
+.TH ST 1 st\-VERSION
+.SH NAME
+st \- simple terminal
+.SH SYNOPSIS
+.B st
+.RB [ \-a ]
+.RB [ \-c
+.IR class ]
+.RB [ \-f
+.IR font ]
+.RB [ \-g
+.IR geometry ]
+.RB [ \-i ]
+.RB [ \-o
+.IR file ]
+.RB [ \-t
+.IR title ]
+.RB [ \-T
+.IR title ]
+.RB [ \-l
+.IR line ]
+.RB [ \-w
+.IR windowid ]
+.RB [ \-v ]
+.RB [ \-e
+.IR command ...]
+.RI [ commands ...]
+.PP
+.B st
+.RB [ \-a ]
+.RB [ \-c
+.IR class ]
+.RB [ \-f
+.IR font ]
+.RB [ \-g
+.IR geometry ]
+.RB [ \-i ]
+.RB [ \-o
+.IR file ]
+.RB [ \-t
+.IR title ]
+.RB [ \-T
+.IR title ]
+.RB [ \-l
+.IR line ]
+.RB [ \-w
+.IR windowid ]
+.RB [ \-v ]
+.RB [ \-l
+.IR line ]
+.RI [ stty_args ...]
+.SH DESCRIPTION
+.B st
+is a simple terminal emulator.
+.SH OPTIONS
+.TP
+.B \-a
+disable alternate screens in terminal
+.TP
+.BI \-c " class"
+defines the window class (default $TERM).
+.TP
+.BI \-f " font"
+defines the
+.I font
+to use when st is run.
+.TP
+.BI \-g " geometry"
+defines the X11 geometry string.
+The form is [=][<cols>{xX}<rows>][{+-}<xoffset>{+-}<yoffset>]. See
+.BR XParseGeometry (3)
+for further details.
+.TP
+.B \-i
+will fixate the position given with the -g option.
+.TP
+.BI \-o " iofile"
+writes all the I/O to
+.I iofile.
+This feature is useful when recording st sessions. A value of "-" means
+standard output.
+.TP
+.BI \-t " title"
+defines the window title (default 'st').
+.TP
+.BI \-T " title"
+defines the window title (default 'st').
+.TP
+.BI \-w " windowid"
+embeds st within the window identified by
+.I windowid
+.TP
+.BI \-l " line"
+use a tty line instead of a pseudo terminal.
+When this flag is used
+remaining arguments are used as flags for stty.
+.TP
+.B \-v
+prints version information to stderr, then exits.
+.TP
+.BI \-e " program " [ " arguments " "... ]"
+st executes
+.I program
+instead of the shell. If this is used it
+.B must be the last option
+on the command line, as in xterm / rxvt.
+This option is only intended for compability,
+and all the remaining arguments are used as a command
+even without it.
+.SH SHORTCUTS
+.TP
+.B Ctrl-Print Screen
+Toggle if st should print to the
+.I iofile.
+.TP
+.B Shift-Print Screen
+Print the full screen to the
+.I iofile.
+.TP
+.B Print Screen
+Print the selection to the
+.I iofile.
+.TP
+.B Alt-Shift-Page Up
+Increase font size.
+.TP
+.B Alt-Shift-Page Down
+Decrease font size.
+.TP
+.B Alt-Shift-Home
+Reset to default font size.
+.TP
+.B Shift-Insert
+Paste from primary selection (middle mouse button).
+.TP
+.B Alt-Shift-Insert
+Paste from clipboard selection.
+.TP
+.B Alt-Shift-c
+Copy the selected text to the clipboard selection.
+.TP
+.B Alt-Shift-v
+Paste from the clipboard selection.
+.SH CUSTOMIZATION
+.B st
+can be customized by creating a custom config.h and (re)compiling the source
+code. This keeps it fast, secure and simple.
+.SH AUTHORS
+See the LICENSE file for the authors.
+.SH LICENSE
+See the LICENSE file for the terms of redistribution.
+.SH SEE ALSO
+.BR tabbed (1),
+.BR utmp (1),
+.BR stty (1)
+.SH BUGS
+See the TODO file in the distribution.
+
diff --git a/st.c b/st.c
new file mode 100644
index 0000000..871b0de
--- /dev/null
+++ b/st.c
@@ -0,0 +1,4354 @@
+/* See LICENSE for license details. */
+#include <ctype.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+/* for BTN_* definitions */
+#include <linux/input.h>
+#include <locale.h>
+#include <pwd.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <signal.h>
+#include <stdint.h>
+#include <sys/ioctl.h>
+#include <sys/mman.h>
+#include <sys/select.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <time.h>
+#include <unistd.h>
+#include <libgen.h>
+#include <wayland-client.h>
+#include <wayland-cursor.h>
+#include <xkbcommon/xkbcommon.h>
+#include "wld/wld.h"
+#include "wld/wayland.h"
+#include <fontconfig/fontconfig.h>
+#include <wchar.h>
+
+#include "arg.h"
+#include "xdg-shell-client-protocol.h"
+
+char *argv0;
+
+#if defined(__linux)
+ #include <pty.h>
+#elif defined(__OpenBSD__) || defined(__NetBSD__) || defined(__APPLE__)
+ #include <util.h>
+#elif defined(__FreeBSD__) || defined(__DragonFly__)
+ #include <libutil.h>
+#endif
+
+
+/* Arbitrary sizes */
+#define UTF_INVALID 0xFFFD
+#define UTF_SIZ 4
+#define ESC_BUF_SIZ (128*UTF_SIZ)
+#define ESC_ARG_SIZ 16
+#define STR_BUF_SIZ ESC_BUF_SIZ
+#define STR_ARG_SIZ ESC_ARG_SIZ
+#define DRAW_BUF_SIZ 20*1024
+#define XK_ANY_MOD UINT_MAX
+#define XK_NO_MOD 0
+#define XK_SWITCH_MOD (1<<13)
+
+#define MOD_MASK_ANY UINT_MAX
+#define MOD_MASK_NONE 0
+#define MOD_MASK_CTRL (1<<0)
+#define MOD_MASK_ALT (1<<1)
+#define MOD_MASK_SHIFT (1<<2)
+#define MOD_MASK_LOGO (1<<3)
+
+#define AXIS_VERTICAL WL_POINTER_AXIS_VERTICAL_SCROLL
+#define AXIS_HORIZONTAL WL_POINTER_AXIS_HORIZONTAL_SCROLL
+
+/* macros */
+#define MIN(a, b) ((a) < (b) ? (a) : (b))
+#define MAX(a, b) ((a) < (b) ? (b) : (a))
+#define LEN(a) (sizeof(a) / sizeof(a)[0])
+#define DEFAULT(a, b) (a) = (a) ? (a) : (b)
+#define BETWEEN(x, a, b) ((a) <= (x) && (x) <= (b))
+#define ISCONTROLC0(c) (BETWEEN(c, 0, 0x1f) || (c) == '\177')
+#define ISCONTROLC1(c) (BETWEEN(c, 0x80, 0x9f))
+#define ISCONTROL(c) (ISCONTROLC0(c) || ISCONTROLC1(c))
+#define ISDELIM(u) (utf8strchr(worddelimiters, u) != NULL)
+#define LIMIT(x, a, b) (x) = (x) < (a) ? (a) : (x) > (b) ? (b) : (x)
+#define ATTRCMP(a, b) ((a).mode != (b).mode || (a).fg != (b).fg || \
+ (a).bg != (b).bg)
+#define IS_SET(flag) ((term.mode & (flag)) != 0)
+#define TIMEDIFF(t1, t2) ((t1.tv_sec-t2.tv_sec)*1000 + \
+ (t1.tv_nsec-t2.tv_nsec)/1E6)
+#define MODBIT(x, set, bit) ((set) ? ((x) |= (bit)) : ((x) &= ~(bit)))
+
+#define TRUECOLOR(r,g,b) (1 << 24 | (r) << 16 | (g) << 8 | (b))
+#define IS_TRUECOL(x) (1 << 24 & (x))
+#define TRUERED(x) (((x) & 0xff0000) >> 8)
+#define TRUEGREEN(x) (((x) & 0xff00))
+#define TRUEBLUE(x) (((x) & 0xff) << 8)
+
+
+enum glyph_attribute {
+ ATTR_NULL = 0,
+ ATTR_BOLD = 1 << 0,
+ ATTR_FAINT = 1 << 1,
+ ATTR_ITALIC = 1 << 2,
+ ATTR_UNDERLINE = 1 << 3,
+ ATTR_BLINK = 1 << 4,
+ ATTR_REVERSE = 1 << 5,
+ ATTR_INVISIBLE = 1 << 6,
+ ATTR_STRUCK = 1 << 7,
+ ATTR_WRAP = 1 << 8,
+ ATTR_WIDE = 1 << 9,
+ ATTR_WDUMMY = 1 << 10,
+ ATTR_BOLD_FAINT = ATTR_BOLD | ATTR_FAINT,
+};
+
+enum cursor_movement {
+ CURSOR_SAVE,
+ CURSOR_LOAD
+};
+
+enum cursor_state {
+ CURSOR_DEFAULT = 0,
+ CURSOR_WRAPNEXT = 1,
+ CURSOR_ORIGIN = 2
+};
+
+enum term_mode {
+ MODE_WRAP = 1 << 0,
+ MODE_INSERT = 1 << 1,
+ MODE_APPKEYPAD = 1 << 2,
+ MODE_ALTSCREEN = 1 << 3,
+ MODE_CRLF = 1 << 4,
+ MODE_MOUSEBTN = 1 << 5,
+ MODE_MOUSEMOTION = 1 << 6,
+ MODE_REVERSE = 1 << 7,
+ MODE_KBDLOCK = 1 << 8,
+ MODE_HIDE = 1 << 9,
+ MODE_ECHO = 1 << 10,
+ MODE_APPCURSOR = 1 << 11,
+ MODE_MOUSESGR = 1 << 12,
+ MODE_8BIT = 1 << 13,
+ MODE_BLINK = 1 << 14,
+ MODE_FBLINK = 1 << 15,
+ MODE_FOCUS = 1 << 16,
+ MODE_MOUSEX10 = 1 << 17,
+ MODE_MOUSEMANY = 1 << 18,
+ MODE_BRCKTPASTE = 1 << 19,
+ MODE_PRINT = 1 << 20,
+ MODE_MOUSE = MODE_MOUSEBTN|MODE_MOUSEMOTION|MODE_MOUSEX10\
+ |MODE_MOUSEMANY,
+};
+
+enum charset {
+ CS_GRAPHIC0,
+ CS_GRAPHIC1,
+ CS_UK,
+ CS_USA,
+ CS_MULTI,
+ CS_GER,
+ CS_FIN
+};
+
+enum escape_state {
+ ESC_START = 1,
+ ESC_CSI = 2,
+ ESC_STR = 4, /* DCS, OSC, PM, APC */
+ ESC_ALTCHARSET = 8,
+ ESC_STR_END = 16, /* a final string was encountered */
+ ESC_TEST = 32, /* Enter in test mode */
+};
+
+enum window_state {
+ WIN_VISIBLE = 1,
+ WIN_FOCUSED = 2
+};
+
+enum selection_mode {
+ SEL_IDLE = 0,
+ SEL_EMPTY = 1,
+ SEL_READY = 2
+};
+
+enum selection_type {
+ SEL_REGULAR = 1,
+ SEL_RECTANGULAR = 2
+};
+
+enum selection_snap {
+ SNAP_WORD = 1,
+ SNAP_LINE = 2
+};
+
+typedef unsigned char uchar;
+typedef unsigned int uint;
+typedef unsigned long ulong;
+typedef unsigned short ushort;
+
+typedef uint_least32_t Rune;
+
+typedef struct {
+ Rune u; /* character code */
+ ushort mode; /* attribute flags */
+ uint32_t fg; /* foreground */
+ uint32_t bg; /* background */
+} Glyph;
+
+typedef Glyph *Line;
+
+typedef struct {
+ Glyph attr; /* current char attributes */
+ int x;
+ int y;
+ char state;
+} TCursor;
+
+/* CSI Escape sequence structs */
+/* ESC '[' [[ [<priv>] <arg> [;]] <mode> [<mode>]] */
+typedef struct {
+ char buf[ESC_BUF_SIZ]; /* raw string */
+ int len; /* raw string length */
+ char priv;
+ int arg[ESC_ARG_SIZ];
+ int narg; /* nb of args */
+ char mode[2];
+} CSIEscape;
+
+/* STR Escape sequence structs */
+/* ESC type [[ [<priv>] <arg> [;]] <mode>] ESC '\' */
+typedef struct {
+ char type; /* ESC type ... */
+ char buf[STR_BUF_SIZ]; /* raw string */
+ int len; /* raw string length */
+ char *args[STR_ARG_SIZ];
+ int narg; /* nb of args */
+} STREscape;
+
+/* Internal representation of the screen */
+typedef struct {
+ int row; /* nb row */
+ int col; /* nb col */
+ Line *line; /* screen */
+ Line *alt; /* alternate screen */
+ int *dirty; /* dirtyness of lines */
+ TCursor c; /* cursor */
+ int top; /* top scroll limit */
+ int bot; /* bottom scroll limit */
+ int mode; /* terminal mode flags */
+ int esc; /* escape state flags */
+ char trantbl[4]; /* charset table translation */
+ int charset; /* current charset */
+ int icharset; /* selected charset for sequence */
+ int numlock; /* lock numbers in keyboard */
+ int *tabs;
+} Term;
+
+typedef struct {
+ struct xkb_context *ctx;
+ struct xkb_keymap *keymap;
+ struct xkb_state *state;
+ xkb_mod_index_t ctrl, alt, shift, logo;
+ unsigned int mods;
+} XKB;
+
+typedef struct {
+ struct wl_display *dpy;
+ struct wl_compositor *cmp;
+ struct wl_shm *shm;
+ struct wl_seat *seat;
+ struct wl_keyboard *keyboard;
+ struct wl_pointer *pointer;
+ struct wl_data_device_manager *datadevmanager;
+ struct wl_data_device *datadev;
+ struct wl_data_offer *seloffer;
+ struct wl_surface *surface;
+ struct wl_buffer *buffer;
+ struct xdg_shell *shell;
+ struct xdg_surface *xdgsurface;
+ XKB xkb;
+ bool configured;
+ int px, py; /* pointer x and y */
+ int tw, th; /* tty width and height */
+ int w, h; /* window width and height */
+ int ch; /* char height */
+ int cw; /* char width */
+ int vis;
+ char state; /* focus, redraw, visible */
+ int cursor; /* cursor style */
+ struct wl_callback * framecb;
+} Wayland;
+
+typedef struct {
+ struct wld_context *ctx;
+ struct wld_font_context *fontctx;
+ struct wld_renderer *renderer;
+ struct wld_buffer *buffer, *oldbuffer;
+} WLD;
+
+typedef struct {
+ struct wl_cursor_theme *theme;
+ struct wl_cursor *cursor;
+ struct wl_surface *surface;
+} Cursor;
+
+typedef struct {
+ uint b;
+ uint mask;
+ char *s;
+} Mousekey;
+
+typedef struct {
+ int axis;
+ int dir;
+ uint mask;
+ char s[ESC_BUF_SIZ];
+} Axiskey;
+
+typedef struct {
+ xkb_keysym_t k;
+ uint mask;
+ char *s;
+ /* three valued logic variables: 0 indifferent, 1 on, -1 off */
+ signed char appkey; /* application keypad */
+ signed char appcursor; /* application cursor */
+ signed char crlf; /* crlf mode */
+} Key;
+
+typedef struct {
+ int mode;
+ int type;
+ int snap;
+ /*
+ * Selection variables:
+ * nb – normalized coordinates of the beginning of the selection
+ * ne – normalized coordinates of the end of the selection
+ * ob – original coordinates of the beginning of the selection
+ * oe – original coordinates of the end of the selection
+ */
+ struct {
+ int x, y;
+ } nb, ne, ob, oe;
+
+ char *primary;
+ struct wl_data_source *source;
+ int alt;
+ uint32_t tclick1, tclick2;
+} Selection;
+
+typedef union {
+ int i;
+ uint ui;
+ float f;
+ const void *v;
+} Arg;
+
+typedef struct {
+ uint mod;
+ xkb_keysym_t keysym;
+ void (*func)(const Arg *);
+ const Arg arg;
+} Shortcut;
+
+typedef struct {
+ char str[32];
+ uint32_t key;
+ int len;
+ bool started;
+ struct timespec last;
+} Repeat;
+
+/* function definitions used in config.h */
+static void numlock(const Arg *);
+static void selpaste(const Arg *);
+static void wlzoom(const Arg *);
+static void wlzoomabs(const Arg *);
+static void wlzoomreset(const Arg *);
+static void printsel(const Arg *);
+static void printscreen(const Arg *) ;
+static void toggleprinter(const Arg *);
+
+/* Config.h for applying patches and the configuration. */
+#include "config.h"
+
+/* Font structure */
+typedef struct {
+ int height;
+ int width;
+ int ascent;
+ int descent;
+ short lbearing;
+ short rbearing;
+ struct wld_font *match;
+ FcFontSet *set;
+ FcPattern *pattern;
+} Font;
+
+/* Drawing Context */
+typedef struct {
+ uint32_t col[MAX(LEN(colorname), 256)];
+ Font font, bfont, ifont, ibfont;
+} DC;
+
+static void die(const char *, ...);
+static void draw(void);
+static void redraw(void);
+static void drawregion(int, int, int, int);
+static void execsh(void);
+static void stty(void);
+static void sigchld(int);
+static void run(void);
+static void cresize(int, int);
+
+static void csidump(void);
+static void csihandle(void);
+static void csiparse(void);
+static void csireset(void);
+static int eschandle(uchar);
+static void strdump(void);
+static void strhandle(void);
+static void strparse(void);
+static void strreset(void);
+
+static int tattrset(int);
+static void tprinter(char *, size_t);
+static void tdumpsel(void);
+static void tdumpline(int);
+static void tdump(void);
+static void tclearregion(int, int, int, int);
+static void tcursor(int);
+static void tdeletechar(int);
+static void tdeleteline(int);
+static void tinsertblank(int);
+static void tinsertblankline(int);
+static int tlinelen(int);
+static void tmoveto(int, int);
+static void tmoveato(int, int);
+static void tnew(int, int);
+static void tnewline(int);
+static void tputtab(int);
+static void tputc(Rune);
+static void treset(void);
+static void tresize(int, int);
+static void tscrollup(int, int);
+static void tscrolldown(int, int);
+static void tsetattr(int *, int);
+static void tsetchar(Rune, Glyph *, int, int);
+static void tsetscroll(int, int);
+static void tswapscreen(void);
+static void tsetdirt(int, int);
+static void tsetdirtattr(int);
+static void tsetmode(int, int, int *, int);
+static void tfulldirt(void);
+static void techo(Rune);
+static void tcontrolcode(uchar );
+static void tdectest(char );
+static uint32_t tdefcolor(int *, int *, int);
+static void tdeftran(char);
+static inline int match(uint, uint);
+static void ttynew(void);
+static void ttyread(void);
+static void ttyresize(void);
+static void ttysend(char *, size_t);
+static void ttywrite(const char *, size_t);
+static void tstrsequence(uchar);
+
+static inline uchar sixd_to_8bit(int);
+static void wldraws(char *, Glyph, int, int, int, int);
+static void wldrawglyph(Glyph, int, int);
+static void wlclear(int, int, int, int);
+static void wldrawcursor(void);
+static void wlinit(void);
+static void wlloadcols(void);
+static int wlsetcolorname(int, const char *);
+static void wlloadcursor(void);
+static int wlloadfont(Font *, FcPattern *);
+static void wlloadfonts(char *, double);
+static void wlsettitle(char *);
+static void wlresettitle(void);
+static void wlseturgency(int);
+static void wlsetsel(char*, uint32_t);
+static void wltermclear(int, int, int, int);
+static void wlunloadfont(Font *f);
+static void wlunloadfonts(void);
+static void wlresize(int, int);
+
+static void regglobal(void *, struct wl_registry *, uint32_t, const char *,
+ uint32_t);
+static void regglobalremove(void *, struct wl_registry *, uint32_t);
+static void surfenter(void *, struct wl_surface *, struct wl_output *);
+static void surfleave(void *, struct wl_surface *, struct wl_output *);
+static void framedone(void *, struct wl_callback *, uint32_t);
+static void kbdkeymap(void *, struct wl_keyboard *, uint32_t, int32_t, uint32_t);
+static void kbdenter(void *, struct wl_keyboard *, uint32_t,
+ struct wl_surface *, struct wl_array *);
+static void kbdleave(void *, struct wl_keyboard *, uint32_t,
+ struct wl_surface *);
+static void kbdkey(void *, struct wl_keyboard *, uint32_t, uint32_t, uint32_t,
+ uint32_t);
+static void kbdmodifiers(void *, struct wl_keyboard *, uint32_t, uint32_t,
+ uint32_t, uint32_t, uint32_t);
+static void kbdrepeatinfo(void *, struct wl_keyboard *, int32_t, int32_t);
+static void ptrenter(void *, struct wl_pointer *, uint32_t, struct wl_surface *,
+ wl_fixed_t, wl_fixed_t);
+static void ptrleave(void *, struct wl_pointer *, uint32_t,
+ struct wl_surface *);
+static void ptrmotion(void *, struct wl_pointer *, uint32_t,
+ wl_fixed_t, wl_fixed_t);
+static void ptrbutton(void *, struct wl_pointer *, uint32_t, uint32_t,
+ uint32_t, uint32_t);
+static void ptraxis(void *, struct wl_pointer *, uint32_t, uint32_t,
+ wl_fixed_t);
+static void xdgshellping(void *, struct xdg_shell *, uint32_t);
+static void xdgsurfconfigure(void *, struct xdg_surface *,
+ int32_t, int32_t, struct wl_array *, uint32_t);
+static void xdgsurfclose(void *, struct xdg_surface *);
+static void datadevoffer(void *, struct wl_data_device *,
+ struct wl_data_offer *);
+static void datadeventer(void *, struct wl_data_device *, uint32_t,
+ struct wl_surface *, wl_fixed_t, wl_fixed_t, struct wl_data_offer *);
+static void datadevleave(void *, struct wl_data_device *);
+static void datadevmotion(void *, struct wl_data_device *, uint32_t,
+ wl_fixed_t x, wl_fixed_t y);
+static void datadevdrop(void *, struct wl_data_device *);
+static void datadevselection(void *, struct wl_data_device *,
+ struct wl_data_offer *);
+static void dataofferoffer(void *, struct wl_data_offer *, const char *);
+static void datasrctarget(void *, struct wl_data_source *, const char *);
+static void datasrcsend(void *, struct wl_data_source *, const char *, int32_t);
+static void datasrccancelled(void *, struct wl_data_source *);
+
+static void selinit(void);
+static void selnormalize(void);
+static inline int selected(int, int);
+static char *getsel(void);
+static void selcopy(uint32_t);
+static void selscroll(int, int);
+static void selsnap(int *, int *, int);
+static int x2col(int);
+static int y2row(int);
+
+static size_t utf8decode(char *, Rune *, size_t);
+static Rune utf8decodebyte(char, size_t *);
+static size_t utf8encode(Rune, char *);
+static char utf8encodebyte(Rune, size_t);
+static char *utf8strchr(char *s, Rune u);
+static size_t utf8validate(Rune *, size_t);
+
+static ssize_t xwrite(int, const char *, size_t);
+static void *xmalloc(size_t);
+static void *xrealloc(void *, size_t);
+static char *xstrdup(char *);
+
+static void usage(void);
+
+static struct wl_registry_listener reglistener = { regglobal, regglobalremove };
+static struct wl_surface_listener surflistener = { surfenter, surfleave };
+static struct wl_callback_listener framelistener = { framedone };
+static struct wl_keyboard_listener kbdlistener =
+ { kbdkeymap, kbdenter, kbdleave, kbdkey, kbdmodifiers, kbdrepeatinfo };
+static struct wl_pointer_listener ptrlistener =
+ { ptrenter, ptrleave, ptrmotion, ptrbutton, ptraxis };
+static struct xdg_shell_listener xdgshelllistener = { xdgshellping };
+static struct xdg_surface_listener xdgsurflistener =
+ { xdgsurfconfigure, xdgsurfclose };
+static struct wl_data_device_listener datadevlistener =
+ { datadevoffer, datadeventer, datadevleave, datadevmotion, datadevdrop,
+ datadevselection };
+static struct wl_data_offer_listener dataofferlistener = { dataofferoffer };
+static struct wl_data_source_listener datasrclistener =
+ { datasrctarget, datasrcsend, datasrccancelled };
+
+/* Globals */
+static DC dc;
+static Wayland wl;
+static WLD wld;
+static Cursor cursor;
+static Term term;
+static CSIEscape csiescseq;
+static STREscape strescseq;
+static int cmdfd;
+static pid_t pid;
+static Selection sel;
+static Repeat repeat;
+static bool needdraw = true;
+static int iofd = 1;
+static char **opt_cmd = NULL;
+static char *opt_io = NULL;
+static char *opt_title = NULL;
+static char *opt_embed = NULL;
+static char *opt_class = NULL;
+static char *opt_font = NULL;
+static char *opt_line = NULL;
+static int oldbutton = 3; /* button event on startup: 3 = release */
+static int oldx, oldy;
+static char *usedfont = NULL;
+static double usedfontsize = 0;
+static double defaultfontsize = 0;
+
+static uchar utfbyte[UTF_SIZ + 1] = {0x80, 0, 0xC0, 0xE0, 0xF0};
+static uchar utfmask[UTF_SIZ + 1] = {0xC0, 0x80, 0xE0, 0xF0, 0xF8};
+static Rune utfmin[UTF_SIZ + 1] = { 0, 0, 0x80, 0x800, 0x10000};
+static Rune utfmax[UTF_SIZ + 1] = {0x10FFFF, 0x7F, 0x7FF, 0xFFFF, 0x10FFFF};
+
+/* Font Ring Cache */
+enum {
+ FRC_NORMAL,
+ FRC_ITALIC,
+ FRC_BOLD,
+ FRC_ITALICBOLD
+};
+
+typedef struct {
+ struct wld_font *font;
+ int flags;
+ Rune unicodep;
+} Fontcache;
+
+/* Fontcache is an array now. A new font will be appended to the array. */
+static Fontcache frc[16];
+static int frclen = 0;
+
+ssize_t
+xwrite(int fd, const char *s, size_t len)
+{
+ size_t aux = len;
+ ssize_t r;
+
+ while (len > 0) {
+ r = write(fd, s, len);
+ if (r < 0)
+ return r;
+ len -= r;
+ s += r;
+ }
+
+ return aux;
+}
+
+void *
+xmalloc(size_t len)
+{
+ void *p = malloc(len);
+
+ if (!p)
+ die("Out of memory\n");
+
+ return p;
+}
+
+void *
+xrealloc(void *p, size_t len)
+{
+ if ((p = realloc(p, len)) == NULL)
+ die("Out of memory\n");
+
+ return p;
+}
+
+char *
+xstrdup(char *s)
+{
+ if ((s = strdup(s)) == NULL)
+ die("Out of memory\n");
+
+ return s;
+}
+
+size_t
+utf8decode(char *c, Rune *u, size_t clen)
+{
+ size_t i, j, len, type;
+ Rune udecoded;
+
+ *u = UTF_INVALID;
+ if (!clen)
+ return 0;
+ udecoded = utf8decodebyte(c[0], &len);
+ if (!BETWEEN(len, 1, UTF_SIZ))
+ return 1;
+ for (i = 1, j = 1; i < clen && j < len; ++i, ++j) {
+ udecoded = (udecoded << 6) | utf8decodebyte(c[i], &type);
+ if (type != 0)
+ return j;
+ }
+ if (j < len)
+ return 0;
+ *u = udecoded;
+ utf8validate(u, len);
+
+ return len;
+}
+
+Rune
+utf8decodebyte(char c, size_t *i)
+{
+ for (*i = 0; *i < LEN(utfmask); ++(*i))
+ if (((uchar)c & utfmask[*i]) == utfbyte[*i])
+ return (uchar)c & ~utfmask[*i];
+
+ return 0;
+}
+
+size_t
+utf8encode(Rune u, char *c)
+{
+ size_t len, i;
+
+ len = utf8validate(&u, 0);
+ if (len > UTF_SIZ)
+ return 0;
+
+ for (i = len - 1; i != 0; --i) {
+ c[i] = utf8encodebyte(u, 0);
+ u >>= 6;
+ }
+ c[0] = utf8encodebyte(u, len);
+
+ return len;
+}
+
+char
+utf8encodebyte(Rune u, size_t i)
+{
+ return utfbyte[i] | (u & ~utfmask[i]);
+}
+
+char *
+utf8strchr(char *s, Rune u)
+{
+ Rune r;
+ size_t i, j, len;
+
+ len = strlen(s);
+ for (i = 0, j = 0; i < len; i += j) {
+ if (!(j = utf8decode(&s[i], &r, len - i)))
+ break;
+ if (r == u)
+ return &(s[i]);
+ }
+
+ return NULL;
+}
+
+size_t
+utf8validate(Rune *u, size_t i)
+{
+ if (!BETWEEN(*u, utfmin[i], utfmax[i]) || BETWEEN(*u, 0xD800, 0xDFFF))
+ *u = UTF_INVALID;
+ for (i = 1; *u > utfmax[i]; ++i)
+ ;
+
+ return i;
+}
+
+void
+selinit(void)
+{
+ sel.tclick1 = 0;
+ sel.tclick2 = 0;
+ sel.mode = SEL_IDLE;
+ sel.ob.x = -1;
+ sel.primary = NULL;
+ sel.source = NULL;
+}
+
+int
+x2col(int x)
+{
+ x -= borderpx;
+ x /= wl.cw;
+
+ return LIMIT(x, 0, term.col-1);
+}
+
+int
+y2row(int y)
+{
+ y -= borderpx;
+ y /= wl.ch;
+
+ return LIMIT(y, 0, term.row-1);
+}
+
+int
+tlinelen(int y)
+{
+ int i = term.col;
+
+ if (term.line[y][i - 1].mode & ATTR_WRAP)
+ return i;
+
+ while (i > 0 && term.line[y][i - 1].u == ' ')
+ --i;
+
+ return i;
+}
+
+void
+selnormalize(void)
+{
+ int i;
+
+ if (sel.type == SEL_REGULAR && sel.ob.y != sel.oe.y) {
+ sel.nb.x = sel.ob.y < sel.oe.y ? sel.ob.x : sel.oe.x;
+ sel.ne.x = sel.ob.y < sel.oe.y ? sel.oe.x : sel.ob.x;
+ } else {
+ sel.nb.x = MIN(sel.ob.x, sel.oe.x);
+ sel.ne.x = MAX(sel.ob.x, sel.oe.x);
+ }
+ sel.nb.y = MIN(sel.ob.y, sel.oe.y);
+ sel.ne.y = MAX(sel.ob.y, sel.oe.y);
+
+ selsnap(&sel.nb.x, &sel.nb.y, -1);
+ selsnap(&sel.ne.x, &sel.ne.y, +1);
+
+ /* expand selection over line breaks */
+ if (sel.type == SEL_RECTANGULAR)
+ return;
+ i = tlinelen(sel.nb.y);
+ if (i < sel.nb.x)
+ sel.nb.x = i;
+ if (tlinelen(sel.ne.y) <= sel.ne.x)
+ sel.ne.x = term.col - 1;
+}
+
+int
+selected(int x, int y)
+{
+ if (sel.mode == SEL_EMPTY)
+ return 0;
+
+ if (sel.type == SEL_RECTANGULAR)
+ return BETWEEN(y, sel.nb.y, sel.ne.y)
+ && BETWEEN(x, sel.nb.x, sel.ne.x);
+
+ return BETWEEN(y, sel.nb.y, sel.ne.y)
+ && (y != sel.nb.y || x >= sel.nb.x)
+ && (y != sel.ne.y || x <= sel.ne.x);
+}
+
+void
+selsnap(int *x, int *y, int direction)
+{
+ int newx, newy, xt, yt;
+ int delim, prevdelim;
+ Glyph *gp, *prevgp;
+
+ switch (sel.snap) {
+ case SNAP_WORD:
+ /*
+ * Snap around if the word wraps around at the end or
+ * beginning of a line.
+ */
+ prevgp = &term.line[*y][*x];
+ prevdelim = ISDELIM(prevgp->u);
+ for (;;) {
+ newx = *x + direction;
+ newy = *y;
+ if (!BETWEEN(newx, 0, term.col - 1)) {
+ newy += direction;
+ newx = (newx + term.col) % term.col;
+ if (!BETWEEN(newy, 0, term.row - 1))
+ break;
+
+ if (direction > 0)
+ yt = *y, xt = *x;
+ else
+ yt = newy, xt = newx;
+ if (!(term.line[yt][xt].mode & ATTR_WRAP))
+ break;
+ }
+
+ if (newx >= tlinelen(newy))
+ break;
+
+ gp = &term.line[newy][newx];
+ delim = ISDELIM(gp->u);
+ if (!(gp->mode & ATTR_WDUMMY) && (delim != prevdelim
+ || (delim && gp->u != prevgp->u)))
+ break;
+
+ *x = newx;
+ *y = newy;
+ prevgp = gp;
+ prevdelim = delim;
+ }
+ break;
+ case SNAP_LINE:
+ /*
+ * Snap around if the the previous line or the current one
+ * has set ATTR_WRAP at its end. Then the whole next or
+ * previous line will be selected.
+ */
+ *x = (direction < 0) ? 0 : term.col - 1;
+ if (direction < 0) {
+ for (; *y > 0; *y += direction) {
+ if (!(term.line[*y-1][term.col-1].mode
+ & ATTR_WRAP)) {
+ break;
+ }
+ }
+ } else if (direction > 0) {
+ for (; *y < term.row-1; *y += direction) {
+ if (!(term.line[*y][term.col-1].mode
+ & ATTR_WRAP)) {
+ break;
+ }
+ }
+ }
+ break;
+ }
+}
+
+void
+getbuttoninfo(void)
+{
+ int type;
+ uint state = wl.xkb.mods & ~forceselmod;
+
+ sel.alt = IS_SET(MODE_ALTSCREEN);
+
+ sel.oe.x = x2col(wl.px);
+ sel.oe.y = y2row(wl.py);
+ selnormalize();
+
+ sel.type = SEL_REGULAR;
+ for (type = 1; type < LEN(selmasks); ++type) {
+ if (match(selmasks[type], state)) {
+ sel.type = type;
+ break;
+ }
+ }
+}
+
+void
+wlmousereport(int button, bool release, int x, int y)
+{
+ int len;
+ char buf[40];
+
+ if (!IS_SET(MODE_MOUSEX10)) {
+ button += ((wl.xkb.mods & MOD_MASK_SHIFT) ? 4 : 0)
+ + ((wl.xkb.mods & MOD_MASK_LOGO ) ? 8 : 0)
+ + ((wl.xkb.mods & MOD_MASK_CTRL ) ? 16 : 0);
+ }
+
+ if (IS_SET(MODE_MOUSESGR)) {
+ len = snprintf(buf, sizeof(buf), "\033[<%d;%d;%d%c",
+ button, x+1, y+1, release ? 'm' : 'M');
+ } else if (x < 223 && y < 223) {
+ len = snprintf(buf, sizeof(buf), "\033[M%c%c%c",
+ 32+button, 32+x+1, 32+y+1);
+ } else {
+ return;
+ }
+
+ ttywrite(buf, len);
+}
+
+void
+wlmousereportbutton(uint32_t button, uint32_t state)
+{
+ bool release = state == WL_POINTER_BUTTON_STATE_RELEASED;
+
+ if (!IS_SET(MODE_MOUSESGR) && release) {
+ button = 3;
+ } else {
+ switch (button) {
+ case BTN_LEFT:
+ button = 0;
+ break;
+ case BTN_MIDDLE:
+ button = 1;
+ break;
+ case BTN_RIGHT:
+ button = 2;
+ break;
+ }
+ }
+
+ oldbutton = release ? 3 : button;
+
+ /* don't report release events when in X10 mode */
+ if (IS_SET(MODE_MOUSEX10) && release) {
+ return;
+ }
+
+ wlmousereport(button, release, oldx, oldy);
+}
+
+void
+wlmousereportmotion(wl_fixed_t fx, wl_fixed_t fy)
+{
+ int x = x2col(wl_fixed_to_int(fx)), y = y2row(wl_fixed_to_int(fy));
+
+ if (x == oldx && y == oldy)
+ return;
+ if (!IS_SET(MODE_MOUSEMOTION) && !IS_SET(MODE_MOUSEMANY))
+ return;
+ /* MOUSE_MOTION: no reporting if no button is pressed */
+ if (IS_SET(MODE_MOUSEMOTION) && oldbutton == 3)
+ return;
+
+ oldx = x;
+ oldy = y;
+ wlmousereport(oldbutton + 32, false, x, y);
+}
+
+void
+wlmousereportaxis(uint32_t axis, wl_fixed_t amount)
+{
+ wlmousereport(64 + (axis == AXIS_VERTICAL ? 4 : 6)
+ + (amount > 0 ? 1 : 0), false, oldx, oldy);
+}
+
+char *
+getsel(void)
+{
+ char *str, *ptr;
+ int y, bufsize, lastx, linelen;
+ Glyph *gp, *last;
+
+ if (sel.ob.x == -1)
+ return NULL;
+
+ bufsize = (term.col+1) * (sel.ne.y-sel.nb.y+1) * UTF_SIZ;
+ ptr = str = xmalloc(bufsize);
+
+ /* append every set & selected glyph to the selection */
+ for (y = sel.nb.y; y <= sel.ne.y; y++) {
+ linelen = tlinelen(y);
+
+ if (sel.type == SEL_RECTANGULAR) {
+ gp = &term.line[y][sel.nb.x];
+ lastx = sel.ne.x;
+ } else {
+ gp = &term.line[y][sel.nb.y == y ? sel.nb.x : 0];
+ lastx = (sel.ne.y == y) ? sel.ne.x : term.col-1;
+ }
+ last = &term.line[y][MIN(lastx, linelen-1)];
+ while (last >= gp && last->u == ' ')
+ --last;
+
+ for ( ; gp <= last; ++gp) {
+ if (gp->mode & ATTR_WDUMMY)
+ continue;
+
+ ptr += utf8encode(gp->u, ptr);
+ }
+
+ /*
+ * Copy and pasting of line endings is inconsistent
+ * in the inconsistent terminal and GUI world.
+ * The best solution seems like to produce '\n' when
+ * something is copied from st and convert '\n' to
+ * '\r', when something to be pasted is received by
+ * st.
+ * FIXME: Fix the computer world.
+ */
+ if ((y < sel.ne.y || lastx >= linelen) && !(last->mode & ATTR_WRAP))
+ *ptr++ = '\n';
+ }
+ *ptr = 0;
+ return str;
+}
+
+void
+selcopy(uint32_t serial)
+{
+ wlsetsel(getsel(), serial);
+}
+
+static inline void
+selwritebuf(char *buf, int len)
+{
+ char *repl = buf;
+
+ /*
+ * As seen in getsel:
+ * Line endings are inconsistent in the terminal and GUI world
+ * copy and pasting. When receiving some selection data,
+ * replace all '\n' with '\r'.
+ * FIXME: Fix the computer world.
+ */
+ while ((repl = memchr(repl, '\n', len))) {
+ *repl++ = '\r';
+ }
+
+ if (IS_SET(MODE_BRCKTPASTE))
+ ttywrite("\033[200~", 6);
+ ttysend(buf, len);
+ if (IS_SET(MODE_BRCKTPASTE))
+ ttywrite("\033[201~", 6);
+}
+
+void
+selpaste(const Arg *dummy)
+{
+ int fds[2], len, left;
+ char buf[BUFSIZ], *str;
+
+ if (wl.seloffer) {
+ /* check if we are pasting from ourselves */
+ if (sel.source) {
+ str = sel.primary;
+ left = strlen(sel.primary);
+ while (left > 0) {
+ len = MIN(sizeof buf, left);
+ memcpy(buf, str, len);
+ selwritebuf(buf, len);
+ left -= len;
+ str += len;
+ }
+ } else {
+ pipe(fds);
+ wl_data_offer_receive(wl.seloffer, "text/plain", fds[1]);
+ wl_display_flush(wl.dpy);
+ close(fds[1]);
+ while ((len = read(fds[0], buf, sizeof buf)) > 0) {
+ selwritebuf(buf, len);
+ }
+ close(fds[0]);
+ }
+ }
+}
+
+void
+selclear(void)
+{
+ if (sel.ob.x == -1)
+ return;
+ sel.mode = SEL_IDLE;
+ sel.ob.x = -1;
+ tsetdirt(sel.nb.y, sel.ne.y);
+}
+
+void
+wlsetsel(char *str, uint32_t serial)
+{
+ free(sel.primary);
+ sel.primary = str;
+
+ if (str) {
+ sel.source = wl_data_device_manager_create_data_source(wl.datadevmanager);
+ wl_data_source_add_listener(sel.source, &datasrclistener, NULL);
+ wl_data_source_offer(sel.source, "text/plain; charset=utf-8");
+ } else {
+ sel.source = NULL;
+ }
+ wl_data_device_set_selection(wl.datadev, sel.source, serial);
+}
+
+void
+die(const char *errstr, ...)
+{
+ va_list ap;
+
+ va_start(ap, errstr);
+ vfprintf(stderr, errstr, ap);
+ va_end(ap);
+ exit(1);
+}
+
+void
+execsh(void)
+{
+ char **args, *sh, *prog;
+ const struct passwd *pw;
+
+ errno = 0;
+ if ((pw = getpwuid(getuid())) == NULL) {
+ if (errno)
+ die("getpwuid:%s\n", strerror(errno));
+ else
+ die("who are you?\n");
+ }
+
+ if ((sh = getenv("SHELL")) == NULL)
+ sh = (pw->pw_shell[0]) ? pw->pw_shell : shell;
+
+ if (opt_cmd)
+ prog = opt_cmd[0];
+ else if (utmp)
+ prog = utmp;
+ else
+ prog = sh;
+ args = (opt_cmd) ? opt_cmd : (char *[]) {prog, NULL};
+
+ unsetenv("COLUMNS");
+ unsetenv("LINES");
+ unsetenv("TERMCAP");
+ setenv("LOGNAME", pw->pw_name, 1);
+ setenv("USER", pw->pw_name, 1);
+ setenv("SHELL", sh, 1);
+ setenv("HOME", pw->pw_dir, 1);
+ setenv("TERM", termname, 1);
+
+ signal(SIGCHLD, SIG_DFL);
+ signal(SIGHUP, SIG_DFL);
+ signal(SIGINT, SIG_DFL);
+ signal(SIGQUIT, SIG_DFL);
+ signal(SIGTERM, SIG_DFL);
+ signal(SIGALRM, SIG_DFL);
+
+ execvp(prog, args);
+ _exit(1);
+}
+
+void
+sigchld(int a)
+{
+ int stat;
+ pid_t p;
+
+ if ((p = waitpid(pid, &stat, WNOHANG)) < 0)
+ die("Waiting for pid %hd failed: %s\n", pid, strerror(errno));
+
+ if (pid != p)
+ return;
+
+ if (!WIFEXITED(stat) || WEXITSTATUS(stat))
+ die("child finished with error '%d'\n", stat);
+ exit(0);
+}
+
+
+void
+stty(void)
+{
+ char cmd[_POSIX_ARG_MAX], **p, *q, *s;
+ size_t n, siz;
+
+ if ((n = strlen(stty_args)) > sizeof(cmd)-1)
+ die("incorrect stty parameters\n");
+ memcpy(cmd, stty_args, n);
+ q = cmd + n;
+ siz = sizeof(cmd) - n;
+ for (p = opt_cmd; p && (s = *p); ++p) {
+ if ((n = strlen(s)) > siz-1)
+ die("stty parameter length too long\n");
+ *q++ = ' ';
+ q = memcpy(q, s, n);
+ q += n;
+ siz-= n + 1;
+ }
+ *q = '\0';
+ if (system(cmd) != 0)
+ perror("Couldn't call stty");
+}
+
+void
+ttynew(void)
+{
+ int m, s;
+ struct winsize w = {term.row, term.col, 0, 0};
+
+ if (opt_io) {
+ term.mode |= MODE_PRINT;
+ iofd = (!strcmp(opt_io, "-")) ?
+ 1 : open(opt_io, O_WRONLY | O_CREAT, 0666);
+ if (iofd < 0) {
+ fprintf(stderr, "Error opening %s:%s\n",
+ opt_io, strerror(errno));
+ }
+ }
+
+ if (opt_line) {
+ if ((cmdfd = open(opt_line, O_RDWR)) < 0)
+ die("open line failed: %s\n", strerror(errno));
+ close(0);
+ dup(cmdfd);
+ stty();
+ return;
+ }
+
+ /* seems to work fine on linux, openbsd and freebsd */
+ if (openpty(&m, &s, NULL, NULL, &w) < 0)
+ die("openpty failed: %s\n", strerror(errno));
+
+ switch (pid = fork()) {
+ case -1:
+ die("fork failed\n");
+ break;
+ case 0:
+ close(iofd);
+ setsid(); /* create a new process group */
+ dup2(s, 0);
+ dup2(s, 1);
+ dup2(s, 2);
+ if (ioctl(s, TIOCSCTTY, NULL) < 0)
+ die("ioctl TIOCSCTTY failed: %s\n", strerror(errno));
+ close(s);
+ close(m);
+ execsh();
+ break;
+ default:
+ close(s);
+ cmdfd = m;
+ signal(SIGCHLD, sigchld);
+ break;
+ }
+}
+
+void
+ttyread(void)
+{
+ static char buf[BUFSIZ];
+ static int buflen = 0;
+ char *ptr;
+ int charsize; /* size of utf8 char in bytes */
+ Rune unicodep;
+ int ret;
+
+ /* append read bytes to unprocessed bytes */
+ if ((ret = read(cmdfd, buf+buflen, LEN(buf)-buflen)) < 0)
+ die("Couldn't read from shell: %s\n", strerror(errno));
+
+ /* process every complete utf8 char */
+ buflen += ret;
+ ptr = buf;
+ while ((charsize = utf8decode(ptr, &unicodep, buflen))) {
+ tputc(unicodep);
+ ptr += charsize;
+ buflen -= charsize;
+ }
+
+ /* keep any uncomplete utf8 char for the next call */
+ memmove(buf, ptr, buflen);
+ needdraw = true;
+}
+
+void
+ttywrite(const char *s, size_t n)
+{
+ fd_set wfd;
+ struct timespec tv;
+ ssize_t r;
+
+ /*
+ * Remember that we are using a pty, which might be a modem line.
+ * Writing too much will clog the line. That's why we are doing this
+ * dance.
+ * FIXME: Migrate the world to Plan 9.
+ */
+ while (n > 0) {
+ FD_ZERO(&wfd);
+ FD_SET(cmdfd, &wfd);
+ tv.tv_sec = 0;
+ tv.tv_nsec = 0;
+
+ /* Check if we can write. */
+ if (pselect(cmdfd+1, NULL, &wfd, NULL, &tv, NULL) < 0) {
+ if (errno == EINTR)
+ continue;
+ die("select failed: %s\n", strerror(errno));
+ }
+ if(!FD_ISSET(cmdfd, &wfd)) {
+ /* No, then free some buffer space. */
+ ttyread();
+ } else {
+ /*
+ * Only write 256 bytes at maximum. This seems to be a
+ * reasonable value for a serial line. Bigger values
+ * might clog the I/O.
+ */
+ r = write(cmdfd, s, (n < 256)? n : 256);
+ if (r < 0) {
+ die("write error on tty: %s\n",
+ strerror(errno));
+ }
+ if (r < n) {
+ /*
+ * We weren't able to write out everything.
+ * This means the buffer is getting full
+ * again. Empty it.
+ */
+ ttyread();
+ n -= r;
+ s += r;
+ } else {
+ /* All bytes have been written. */
+ break;
+ }
+ }
+ }
+}
+
+void
+ttysend(char *s, size_t n)
+{
+ int len;
+ Rune u;
+
+ ttywrite(s, n);
+ if (IS_SET(MODE_ECHO))
+ while ((len = utf8decode(s, &u, n)) > 0) {
+ techo(u);
+ n -= len;
+ s += len;
+ }
+}
+
+void
+ttyresize(void)
+{
+ struct winsize w;
+
+ w.ws_row = term.row;
+ w.ws_col = term.col;
+ w.ws_xpixel = wl.tw;
+ w.ws_ypixel = wl.th;
+ if (ioctl(cmdfd, TIOCSWINSZ, &w) < 0)
+ fprintf(stderr, "Couldn't set window size: %s\n", strerror(errno));
+}
+
+int
+tattrset(int attr)
+{
+ int i, j;
+
+ for (i = 0; i < term.row-1; i++) {
+ for (j = 0; j < term.col-1; j++) {
+ if (term.line[i][j].mode & attr)
+ return 1;
+ }
+ }
+
+ return 0;
+}
+
+void
+tsetdirt(int top, int bot)
+{
+ int i;
+
+ LIMIT(top, 0, term.row-1);
+ LIMIT(bot, 0, term.row-1);
+
+ for (i = top; i <= bot; i++)
+ term.dirty[i] = 1;
+
+ needdraw = true;
+}
+
+void
+tsetdirtattr(int attr)
+{
+ int i, j;
+
+ for (i = 0; i < term.row-1; i++) {
+ for (j = 0; j < term.col-1; j++) {
+ if (term.line[i][j].mode & attr) {
+ tsetdirt(i, i);
+ break;
+ }
+ }
+ }
+}
+
+void
+tfulldirt(void)
+{
+ tsetdirt(0, term.row-1);
+}
+
+void
+tcursor(int mode)
+{
+ static TCursor c[2];
+ int alt = IS_SET(MODE_ALTSCREEN);
+
+ if (mode == CURSOR_SAVE) {
+ c[alt] = term.c;
+ } else if (mode == CURSOR_LOAD) {
+ term.c = c[alt];
+ tmoveto(c[alt].x, c[alt].y);
+ }
+}
+
+void
+treset(void)
+{
+ uint i;
+
+ term.c = (TCursor){{
+ .mode = ATTR_NULL,
+ .fg = defaultfg,
+ .bg = defaultbg
+ }, .x = 0, .y = 0, .state = CURSOR_DEFAULT};
+
+ memset(term.tabs, 0, term.col * sizeof(*term.tabs));
+ for (i = tabspaces; i < term.col; i += tabspaces)
+ term.tabs[i] = 1;
+ term.top = 0;
+ term.bot = term.row - 1;
+ term.mode = MODE_WRAP;
+ memset(term.trantbl, CS_USA, sizeof(term.trantbl));
+ term.charset = 0;
+
+ for (i = 0; i < 2; i++) {
+ tmoveto(0, 0);
+ tcursor(CURSOR_SAVE);
+ tclearregion(0, 0, term.col-1, term.row-1);
+ tswapscreen();
+ }
+}
+
+void
+tnew(int col, int row)
+{
+ term = (Term){ .c = { .attr = { .fg = defaultfg, .bg = defaultbg } } };
+ tresize(col, row);
+ term.numlock = 1;
+
+ treset();
+}
+
+void
+tswapscreen(void)
+{
+ Line *tmp = term.line;
+
+ term.line = term.alt;
+ term.alt = tmp;
+ term.mode ^= MODE_ALTSCREEN;
+ tfulldirt();
+}
+
+void
+tscrolldown(int orig, int n)
+{
+ int i;
+ Line temp;
+
+ LIMIT(n, 0, term.bot-orig+1);
+
+ tsetdirt(orig, term.bot-n);
+ tclearregion(0, term.bot-n+1, term.col-1, term.bot);
+
+ for (i = term.bot; i >= orig+n; i--) {
+ temp = term.line[i];
+ term.line[i] = term.line[i-n];
+ term.line[i-n] = temp;
+ }
+
+ selscroll(orig, n);
+}
+
+void
+tscrollup(int orig, int n)
+{
+ int i;
+ Line temp;
+
+ LIMIT(n, 0, term.bot-orig+1);
+
+ tclearregion(0, orig, term.col-1, orig+n-1);
+ tsetdirt(orig+n, term.bot);
+
+ for (i = orig; i <= term.bot-n; i++) {
+ temp = term.line[i];
+ term.line[i] = term.line[i+n];
+ term.line[i+n] = temp;
+ }
+
+ selscroll(orig, -n);
+}
+
+void
+selscroll(int orig, int n)
+{
+ if (sel.ob.x == -1)
+ return;
+
+ if (BETWEEN(sel.ob.y, orig, term.bot) || BETWEEN(sel.oe.y, orig, term.bot)) {
+ if ((sel.ob.y += n) > term.bot || (sel.oe.y += n) < term.top) {
+ selclear();
+ return;
+ }
+ if (sel.type == SEL_RECTANGULAR) {
+ if (sel.ob.y < term.top)
+ sel.ob.y = term.top;
+ if (sel.oe.y > term.bot)
+ sel.oe.y = term.bot;
+ } else {
+ if (sel.ob.y < term.top) {
+ sel.ob.y = term.top;
+ sel.ob.x = 0;
+ }
+ if (sel.oe.y > term.bot) {
+ sel.oe.y = term.bot;
+ sel.oe.x = term.col;
+ }
+ }
+ selnormalize();
+ }
+}
+
+void
+tnewline(int first_col)
+{
+ int y = term.c.y;
+
+ if (y == term.bot) {
+ tscrollup(term.top, 1);
+ } else {
+ y++;
+ }
+ tmoveto(first_col ? 0 : term.c.x, y);
+}
+
+void
+csiparse(void)
+{
+ char *p = csiescseq.buf, *np;
+ long int v;
+
+ csiescseq.narg = 0;
+ if (*p == '?') {
+ csiescseq.priv = 1;
+ p++;
+ }
+
+ csiescseq.buf[csiescseq.len] = '\0';
+ while (p < csiescseq.buf+csiescseq.len) {
+ np = NULL;
+ v = strtol(p, &np, 10);
+ if (np == p)
+ v = 0;
+ if (v == LONG_MAX || v == LONG_MIN)
+ v = -1;
+ csiescseq.arg[csiescseq.narg++] = v;
+ p = np;
+ if (*p != ';' || csiescseq.narg == ESC_ARG_SIZ)
+ break;
+ p++;
+ }
+ csiescseq.mode[0] = *p++;
+ csiescseq.mode[1] = (p < csiescseq.buf+csiescseq.len) ? *p : '\0';
+}
+
+/* for absolute user moves, when decom is set */
+void
+tmoveato(int x, int y)
+{
+ tmoveto(x, y + ((term.c.state & CURSOR_ORIGIN) ? term.top: 0));
+}
+
+void
+tmoveto(int x, int y)
+{
+ int miny, maxy;
+
+ if (term.c.state & CURSOR_ORIGIN) {
+ miny = term.top;
+ maxy = term.bot;
+ } else {
+ miny = 0;
+ maxy = term.row - 1;
+ }
+ term.c.state &= ~CURSOR_WRAPNEXT;
+ term.c.x = LIMIT(x, 0, term.col-1);
+ term.c.y = LIMIT(y, miny, maxy);
+}
+
+void
+tsetchar(Rune u, Glyph *attr, int x, int y)
+{
+ static char *vt100_0[62] = { /* 0x41 - 0x7e */
+ "↑", "↓", "→", "←", "█", "▚", "☃", /* A - G */
+ 0, 0, 0, 0, 0, 0, 0, 0, /* H - O */
+ 0, 0, 0, 0, 0, 0, 0, 0, /* P - W */
+ 0, 0, 0, 0, 0, 0, 0, " ", /* X - _ */
+ "◆", "▒", "␉", "␌", "␍", "␊", "°", "±", /* ` - g */
+ "␤", "␋", "┘", "┐", "┌", "└", "┼", "⎺", /* h - o */
+ "⎻", "─", "⎼", "⎽", "├", "┤", "┴", "┬", /* p - w */
+ "│", "≤", "≥", "π", "≠", "£", "·", /* x - ~ */
+ };
+
+ /*
+ * The table is proudly stolen from rxvt.
+ */
+ if (term.trantbl[term.charset] == CS_GRAPHIC0 &&
+ BETWEEN(u, 0x41, 0x7e) && vt100_0[u - 0x41])
+ utf8decode(vt100_0[u - 0x41], &u, UTF_SIZ);
+
+ if (term.line[y][x].mode & ATTR_WIDE) {
+ if (x+1 < term.col) {
+ term.line[y][x+1].u = ' ';
+ term.line[y][x+1].mode &= ~ATTR_WDUMMY;
+ }
+ } else if (term.line[y][x].mode & ATTR_WDUMMY) {
+ term.line[y][x-1].u = ' ';
+ term.line[y][x-1].mode &= ~ATTR_WIDE;
+ }
+
+ term.dirty[y] = 1;
+ term.line[y][x] = *attr;
+ term.line[y][x].u = u;
+}
+
+void
+tclearregion(int x1, int y1, int x2, int y2)
+{
+ int x, y, temp;
+ Glyph *gp;
+
+ if (x1 > x2)
+ temp = x1, x1 = x2, x2 = temp;
+ if (y1 > y2)
+ temp = y1, y1 = y2, y2 = temp;
+
+ LIMIT(x1, 0, term.col-1);
+ LIMIT(x2, 0, term.col-1);
+ LIMIT(y1, 0, term.row-1);
+ LIMIT(y2, 0, term.row-1);
+
+ for (y = y1; y <= y2; y++) {
+ term.dirty[y] = 1;
+ for (x = x1; x <= x2; x++) {
+ gp = &term.line[y][x];
+ if (selected(x, y))
+ selclear();
+ gp->fg = term.c.attr.fg;
+ gp->bg = term.c.attr.bg;
+ gp->mode = 0;
+ gp->u = ' ';
+ }
+ }
+}
+
+void
+tdeletechar(int n)
+{
+ int dst, src, size;
+ Glyph *line;
+
+ LIMIT(n, 0, term.col - term.c.x);
+
+ dst = term.c.x;
+ src = term.c.x + n;
+ size = term.col - src;
+ line = term.line[term.c.y];
+
+ memmove(&line[dst], &line[src], size * sizeof(Glyph));
+ tclearregion(term.col-n, term.c.y, term.col-1, term.c.y);
+}
+
+void
+tinsertblank(int n)
+{
+ int dst, src, size;
+ Glyph *line;
+
+ LIMIT(n, 0, term.col - term.c.x);
+
+ dst = term.c.x + n;
+ src = term.c.x;
+ size = term.col - dst;
+ line = term.line[term.c.y];
+
+ memmove(&line[dst], &line[src], size * sizeof(Glyph));
+ tclearregion(src, term.c.y, dst - 1, term.c.y);
+}
+
+void
+tinsertblankline(int n)
+{
+ if (BETWEEN(term.c.y, term.top, term.bot))
+ tscrolldown(term.c.y, n);
+}
+
+void
+tdeleteline(int n)
+{
+ if (BETWEEN(term.c.y, term.top, term.bot))
+ tscrollup(term.c.y, n);
+}
+
+uint32_t
+tdefcolor(int *attr, int *npar, int l)
+{
+ int32_t idx = -1;
+ uint r, g, b;
+
+ switch (attr[*npar + 1]) {
+ case 2: /* direct color in RGB space */
+ if (*npar + 4 >= l) {
+ fprintf(stderr,
+ "erresc(38): Incorrect number of parameters (%d)\n",
+ *npar);
+ break;
+ }
+ r = attr[*npar + 2];
+ g = attr[*npar + 3];
+ b = attr[*npar + 4];
+ *npar += 4;
+ if (!BETWEEN(r, 0, 255) || !BETWEEN(g, 0, 255) || !BETWEEN(b, 0, 255))
+ fprintf(stderr, "erresc: bad rgb color (%u,%u,%u)\n",
+ r, g, b);
+ else
+ idx = TRUECOLOR(r, g, b);
+ break;
+ case 5: /* indexed color */
+ if (*npar + 2 >= l) {
+ fprintf(stderr,
+ "erresc(38): Incorrect number of parameters (%d)\n",
+ *npar);
+ break;
+ }
+ *npar += 2;
+ if (!BETWEEN(attr[*npar], 0, 255))
+ fprintf(stderr, "erresc: bad fgcolor %d\n", attr[*npar]);
+ else
+ idx = attr[*npar];
+ break;
+ case 0: /* implemented defined (only foreground) */
+ case 1: /* transparent */
+ case 3: /* direct color in CMY space */
+ case 4: /* direct color in CMYK space */
+ default:
+ fprintf(stderr,
+ "erresc(38): gfx attr %d unknown\n", attr[*npar]);
+ break;
+ }
+
+ return idx;
+}
+
+void
+tsetattr(int *attr, int l)
+{
+ int i;
+ uint32_t idx;
+
+ for (i = 0; i < l; i++) {
+ switch (attr[i]) {
+ case 0:
+ term.c.attr.mode &= ~(
+ ATTR_BOLD |
+ ATTR_FAINT |
+ ATTR_ITALIC |
+ ATTR_UNDERLINE |
+ ATTR_BLINK |
+ ATTR_REVERSE |
+ ATTR_INVISIBLE |
+ ATTR_STRUCK );
+ term.c.attr.fg = defaultfg;
+ term.c.attr.bg = defaultbg;
+ break;
+ case 1:
+ term.c.attr.mode |= ATTR_BOLD;
+ break;
+ case 2:
+ term.c.attr.mode |= ATTR_FAINT;
+ break;
+ case 3:
+ term.c.attr.mode |= ATTR_ITALIC;
+ break;
+ case 4:
+ term.c.attr.mode |= ATTR_UNDERLINE;
+ break;
+ case 5: /* slow blink */
+ /* FALLTHROUGH */
+ case 6: /* rapid blink */
+ term.c.attr.mode |= ATTR_BLINK;
+ break;
+ case 7:
+ term.c.attr.mode |= ATTR_REVERSE;
+ break;
+ case 8:
+ term.c.attr.mode |= ATTR_INVISIBLE;
+ break;
+ case 9:
+ term.c.attr.mode |= ATTR_STRUCK;
+ break;
+ case 22:
+ term.c.attr.mode &= ~(ATTR_BOLD | ATTR_FAINT);
+ break;
+ case 23:
+ term.c.attr.mode &= ~ATTR_ITALIC;
+ break;
+ case 24:
+ term.c.attr.mode &= ~ATTR_UNDERLINE;
+ break;
+ case 25:
+ term.c.attr.mode &= ~ATTR_BLINK;
+ break;
+ case 27:
+ term.c.attr.mode &= ~ATTR_REVERSE;
+ break;
+ case 28:
+ term.c.attr.mode &= ~ATTR_INVISIBLE;
+ break;
+ case 29:
+ term.c.attr.mode &= ~ATTR_STRUCK;
+ break;
+ case 38:
+ if ((idx = tdefcolor(attr, &i, l)) >= 0)
+ term.c.attr.fg = idx;
+ break;
+ case 39:
+ term.c.attr.fg = defaultfg;
+ break;
+ case 48:
+ if ((idx = tdefcolor(attr, &i, l)) >= 0)
+ term.c.attr.bg = idx;
+ break;
+ case 49:
+ term.c.attr.bg = defaultbg;
+ break;
+ default:
+ if (BETWEEN(attr[i], 30, 37)) {
+ term.c.attr.fg = attr[i] - 30;
+ } else if (BETWEEN(attr[i], 40, 47)) {
+ term.c.attr.bg = attr[i] - 40;
+ } else if (BETWEEN(attr[i], 90, 97)) {
+ term.c.attr.fg = attr[i] - 90 + 8;
+ } else if (BETWEEN(attr[i], 100, 107)) {
+ term.c.attr.bg = attr[i] - 100 + 8;
+ } else {
+ fprintf(stderr,
+ "erresc(default): gfx attr %d unknown\n",
+ attr[i]), csidump();
+ }
+ break;
+ }
+ }
+}
+
+void
+tsetscroll(int t, int b)
+{
+ int temp;
+
+ LIMIT(t, 0, term.row-1);
+ LIMIT(b, 0, term.row-1);
+ if (t > b) {
+ temp = t;
+ t = b;
+ b = temp;
+ }
+ term.top = t;
+ term.bot = b;
+}
+
+void
+tsetmode(int priv, int set, int *args, int narg)
+{
+ int *lim, mode;
+ int alt;
+
+ for (lim = args + narg; args < lim; ++args) {
+ if (priv) {
+ switch (*args) {
+ case 1: /* DECCKM -- Cursor key */
+ MODBIT(term.mode, set, MODE_APPCURSOR);
+ break;
+ case 5: /* DECSCNM -- Reverse video */
+ mode = term.mode;
+ MODBIT(term.mode, set, MODE_REVERSE);
+ if (mode != term.mode)
+ redraw();
+ break;
+ case 6: /* DECOM -- Origin */
+ MODBIT(term.c.state, set, CURSOR_ORIGIN);
+ tmoveato(0, 0);
+ break;
+ case 7: /* DECAWM -- Auto wrap */
+ MODBIT(term.mode, set, MODE_WRAP);
+ break;
+ case 0: /* Error (IGNORED) */
+ case 2: /* DECANM -- ANSI/VT52 (IGNORED) */
+ case 3: /* DECCOLM -- Column (IGNORED) */
+ case 4: /* DECSCLM -- Scroll (IGNORED) */
+ case 8: /* DECARM -- Auto repeat (IGNORED) */
+ case 18: /* DECPFF -- Printer feed (IGNORED) */
+ case 19: /* DECPEX -- Printer extent (IGNORED) */
+ case 42: /* DECNRCM -- National characters (IGNORED) */
+ case 12: /* att610 -- Start blinking cursor (IGNORED) */
+ break;
+ case 25: /* DECTCEM -- Text Cursor Enable Mode */
+ MODBIT(term.mode, !set, MODE_HIDE);
+ break;
+ case 9: /* X10 mouse compatibility mode */
+ MODBIT(term.mode, 0, MODE_MOUSE);
+ MODBIT(term.mode, set, MODE_MOUSEX10);
+ break;
+ case 1000: /* 1000: report button press */
+ MODBIT(term.mode, 0, MODE_MOUSE);
+ MODBIT(term.mode, set, MODE_MOUSEBTN);
+ break;
+ case 1002: /* 1002: report motion on button press */
+ MODBIT(term.mode, 0, MODE_MOUSE);
+ MODBIT(term.mode, set, MODE_MOUSEMOTION);
+ break;
+ case 1003: /* 1003: enable all mouse motions */
+ MODBIT(term.mode, 0, MODE_MOUSE);
+ MODBIT(term.mode, set, MODE_MOUSEMANY);
+ break;
+ case 1004: /* 1004: send focus events to tty */
+ MODBIT(term.mode, set, MODE_FOCUS);
+ break;
+ case 1006: /* 1006: extended reporting mode */
+ MODBIT(term.mode, set, MODE_MOUSESGR);
+ break;
+ case 1034:
+ MODBIT(term.mode, set, MODE_8BIT);
+ break;
+ case 1049: /* swap screen & set/restore cursor as xterm */
+ if (!allowaltscreen)
+ break;
+ tcursor((set) ? CURSOR_SAVE : CURSOR_LOAD);
+ /* FALLTHROUGH */
+ case 47: /* swap screen */
+ case 1047:
+ if (!allowaltscreen)
+ break;
+ alt = IS_SET(MODE_ALTSCREEN);
+ if (alt) {
+ tclearregion(0, 0, term.col-1,
+ term.row-1);
+ }
+ if (set ^ alt) /* set is always 1 or 0 */
+ tswapscreen();
+ if (*args != 1049)
+ break;
+ /* FALLTHROUGH */
+ case 1048:
+ tcursor((set) ? CURSOR_SAVE : CURSOR_LOAD);
+ break;
+ case 2004: /* 2004: bracketed paste mode */
+ MODBIT(term.mode, set, MODE_BRCKTPASTE);
+ break;
+ /* Not implemented mouse modes. See comments there. */
+ case 1001: /* mouse highlight mode; can hang the
+ terminal by design when implemented. */
+ case 1005: /* UTF-8 mouse mode; will confuse
+ applications not supporting UTF-8
+ and luit. */
+ case 1015: /* urxvt mangled mouse mode; incompatible
+ and can be mistaken for other control
+ codes. */
+ default:
+ fprintf(stderr,
+ "erresc: unknown private set/reset mode %d\n",
+ *args);
+ break;
+ }
+ } else {
+ switch (*args) {
+ case 0: /* Error (IGNORED) */
+ break;
+ case 2: /* KAM -- keyboard action */
+ MODBIT(term.mode, set, MODE_KBDLOCK);
+ break;
+ case 4: /* IRM -- Insertion-replacement */
+ MODBIT(term.mode, set, MODE_INSERT);
+ break;
+ case 12: /* SRM -- Send/Receive */
+ MODBIT(term.mode, !set, MODE_ECHO);
+ break;
+ case 20: /* LNM -- Linefeed/new line */
+ MODBIT(term.mode, set, MODE_CRLF);
+ break;
+ default:
+ fprintf(stderr,
+ "erresc: unknown set/reset mode %d\n",
+ *args);
+ break;
+ }
+ }
+ }
+}
+
+void
+csihandle(void)
+{
+ char buf[40];
+ int len;
+
+ switch (csiescseq.mode[0]) {
+ default:
+ unknown:
+ fprintf(stderr, "erresc: unknown csi ");
+ csidump();
+ /* die(""); */
+ break;
+ case '@': /* ICH -- Insert <n> blank char */
+ DEFAULT(csiescseq.arg[0], 1);
+ tinsertblank(csiescseq.arg[0]);
+ break;
+ case 'A': /* CUU -- Cursor <n> Up */
+ DEFAULT(csiescseq.arg[0], 1);
+ tmoveto(term.c.x, term.c.y-csiescseq.arg[0]);
+ break;
+ case 'B': /* CUD -- Cursor <n> Down */
+ case 'e': /* VPR --Cursor <n> Down */
+ DEFAULT(csiescseq.arg[0], 1);
+ tmoveto(term.c.x, term.c.y+csiescseq.arg[0]);
+ break;
+ case 'i': /* MC -- Media Copy */
+ switch (csiescseq.arg[0]) {
+ case 0:
+ tdump();
+ break;
+ case 1:
+ tdumpline(term.c.y);
+ break;
+ case 2:
+ tdumpsel();
+ break;
+ case 4:
+ term.mode &= ~MODE_PRINT;
+ break;
+ case 5:
+ term.mode |= MODE_PRINT;
+ break;
+ }
+ break;
+ case 'c': /* DA -- Device Attributes */
+ if (csiescseq.arg[0] == 0)
+ ttywrite(vtiden, sizeof(vtiden) - 1);
+ break;
+ case 'C': /* CUF -- Cursor <n> Forward */
+ case 'a': /* HPR -- Cursor <n> Forward */
+ DEFAULT(csiescseq.arg[0], 1);
+ tmoveto(term.c.x+csiescseq.arg[0], term.c.y);
+ break;
+ case 'D': /* CUB -- Cursor <n> Backward */
+ DEFAULT(csiescseq.arg[0], 1);
+ tmoveto(term.c.x-csiescseq.arg[0], term.c.y);
+ break;
+ case 'E': /* CNL -- Cursor <n> Down and first col */
+ DEFAULT(csiescseq.arg[0], 1);
+ tmoveto(0, term.c.y+csiescseq.arg[0]);
+ break;
+ case 'F': /* CPL -- Cursor <n> Up and first col */
+ DEFAULT(csiescseq.arg[0], 1);
+ tmoveto(0, term.c.y-csiescseq.arg[0]);
+ break;
+ case 'g': /* TBC -- Tabulation clear */
+ switch (csiescseq.arg[0]) {
+ case 0: /* clear current tab stop */
+ term.tabs[term.c.x] = 0;
+ break;
+ case 3: /* clear all the tabs */
+ memset(term.tabs, 0, term.col * sizeof(*term.tabs));
+ break;
+ default:
+ goto unknown;
+ }
+ break;
+ case 'G': /* CHA -- Move to <col> */
+ case '`': /* HPA */
+ DEFAULT(csiescseq.arg[0], 1);
+ tmoveto(csiescseq.arg[0]-1, term.c.y);
+ break;
+ case 'H': /* CUP -- Move to <row> <col> */
+ case 'f': /* HVP */
+ DEFAULT(csiescseq.arg[0], 1);
+ DEFAULT(csiescseq.arg[1], 1);
+ tmoveato(csiescseq.arg[1]-1, csiescseq.arg[0]-1);
+ break;
+ case 'I': /* CHT -- Cursor Forward Tabulation <n> tab stops */
+ DEFAULT(csiescseq.arg[0], 1);
+ tputtab(csiescseq.arg[0]);
+ break;
+ case 'J': /* ED -- Clear screen */
+ selclear();
+ switch (csiescseq.arg[0]) {
+ case 0: /* below */
+ tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
+ if (term.c.y < term.row-1) {
+ tclearregion(0, term.c.y+1, term.col-1,
+ term.row-1);
+ }
+ break;
+ case 1: /* above */
+ if (term.c.y > 1)
+ tclearregion(0, 0, term.col-1, term.c.y-1);
+ tclearregion(0, term.c.y, term.c.x, term.c.y);
+ break;
+ case 2: /* all */
+ tclearregion(0, 0, term.col-1, term.row-1);
+ break;
+ default:
+ goto unknown;
+ }
+ break;
+ case 'K': /* EL -- Clear line */
+ switch (csiescseq.arg[0]) {
+ case 0: /* right */
+ tclearregion(term.c.x, term.c.y, term.col-1,
+ term.c.y);
+ break;
+ case 1: /* left */
+ tclearregion(0, term.c.y, term.c.x, term.c.y);
+ break;
+ case 2: /* all */
+ tclearregion(0, term.c.y, term.col-1, term.c.y);
+ break;
+ }
+ break;
+ case 'S': /* SU -- Scroll <n> line up */
+ DEFAULT(csiescseq.arg[0], 1);
+ tscrollup(term.top, csiescseq.arg[0]);
+ break;
+ case 'T': /* SD -- Scroll <n> line down */
+ DEFAULT(csiescseq.arg[0], 1);
+ tscrolldown(term.top, csiescseq.arg[0]);
+ break;
+ case 'L': /* IL -- Insert <n> blank lines */
+ DEFAULT(csiescseq.arg[0], 1);
+ tinsertblankline(csiescseq.arg[0]);
+ break;
+ case 'l': /* RM -- Reset Mode */
+ tsetmode(csiescseq.priv, 0, csiescseq.arg, csiescseq.narg);
+ break;
+ case 'M': /* DL -- Delete <n> lines */
+ DEFAULT(csiescseq.arg[0], 1);
+ tdeleteline(csiescseq.arg[0]);
+ break;
+ case 'X': /* ECH -- Erase <n> char */
+ DEFAULT(csiescseq.arg[0], 1);
+ tclearregion(term.c.x, term.c.y,
+ term.c.x + csiescseq.arg[0] - 1, term.c.y);
+ break;
+ case 'P': /* DCH -- Delete <n> char */
+ DEFAULT(csiescseq.arg[0], 1);
+ tdeletechar(csiescseq.arg[0]);
+ break;
+ case 'Z': /* CBT -- Cursor Backward Tabulation <n> tab stops */
+ DEFAULT(csiescseq.arg[0], 1);
+ tputtab(-csiescseq.arg[0]);
+ break;
+ case 'd': /* VPA -- Move to <row> */
+ DEFAULT(csiescseq.arg[0], 1);
+ tmoveato(term.c.x, csiescseq.arg[0]-1);
+ break;
+ case 'h': /* SM -- Set terminal mode */
+ tsetmode(csiescseq.priv, 1, csiescseq.arg, csiescseq.narg);
+ break;
+ case 'm': /* SGR -- Terminal attribute (color) */
+ tsetattr(csiescseq.arg, csiescseq.narg);
+ break;
+ case 'n': /* DSR – Device Status Report (cursor position) */
+ if (csiescseq.arg[0] == 6) {
+ len = snprintf(buf, sizeof(buf),"\033[%i;%iR",
+ term.c.y+1, term.c.x+1);
+ ttywrite(buf, len);
+ }
+ break;
+ case 'r': /* DECSTBM -- Set Scrolling Region */
+ if (csiescseq.priv) {
+ goto unknown;
+ } else {
+ DEFAULT(csiescseq.arg[0], 1);
+ DEFAULT(csiescseq.arg[1], term.row);
+ tsetscroll(csiescseq.arg[0]-1, csiescseq.arg[1]-1);
+ tmoveato(0, 0);
+ }
+ break;
+ case 's': /* DECSC -- Save cursor position (ANSI.SYS) */
+ tcursor(CURSOR_SAVE);
+ break;
+ case 'u': /* DECRC -- Restore cursor position (ANSI.SYS) */
+ tcursor(CURSOR_LOAD);
+ break;
+ case ' ':
+ switch (csiescseq.mode[1]) {
+ case 'q': /* DECSCUSR -- Set Cursor Style */
+ DEFAULT(csiescseq.arg[0], 1);
+ if (!BETWEEN(csiescseq.arg[0], 0, 6)) {
+ goto unknown;
+ }
+ wl.cursor = csiescseq.arg[0];
+ break;
+ default:
+ goto unknown;
+ }
+ break;
+ }
+}
+
+void
+csidump(void)
+{
+ int i;
+ uint c;
+
+ printf("ESC[");
+ for (i = 0; i < csiescseq.len; i++) {
+ c = csiescseq.buf[i] & 0xff;
+ if (isprint(c)) {
+ putchar(c);
+ } else if (c == '\n') {
+ printf("(\\n)");
+ } else if (c == '\r') {
+ printf("(\\r)");
+ } else if (c == 0x1b) {
+ printf("(\\e)");
+ } else {
+ printf("(%02x)", c);
+ }
+ }
+ putchar('\n');
+}
+
+void
+csireset(void)
+{
+ memset(&csiescseq, 0, sizeof(csiescseq));
+}
+
+void
+strhandle(void)
+{
+ char *p = NULL;
+ int j, narg, par;
+
+ term.esc &= ~(ESC_STR_END|ESC_STR);
+ strparse();
+ par = (narg = strescseq.narg) ? atoi(strescseq.args[0]) : 0;
+
+ switch (strescseq.type) {
+ case ']': /* OSC -- Operating System Command */
+ switch (par) {
+ case 0:
+ case 1:
+ case 2:
+ if (narg > 1)
+ wlsettitle(strescseq.args[1]);
+ return;
+ case 4: /* color set */
+ if (narg < 3)
+ break;
+ p = strescseq.args[2];
+ /* FALLTHROUGH */
+ case 104: /* color reset, here p = NULL */
+ j = (narg > 1) ? atoi(strescseq.args[1]) : -1;
+ if (wlsetcolorname(j, p)) {
+ fprintf(stderr, "erresc: invalid color %s\n", p);
+ } else {
+ /*
+ * TODO if defaultbg color is changed, borders
+ * are dirty
+ */
+ redraw();
+ }
+ return;
+ }
+ break;
+ case 'k': /* old title set compatibility */
+ wlsettitle(strescseq.args[0]);
+ return;
+ case 'P': /* DCS -- Device Control String */
+ case '_': /* APC -- Application Program Command */
+ case '^': /* PM -- Privacy Message */
+ return;
+ }
+
+ fprintf(stderr, "erresc: unknown str ");
+ strdump();
+}
+
+void
+strparse(void)
+{
+ int c;
+ char *p = strescseq.buf;
+
+ strescseq.narg = 0;
+ strescseq.buf[strescseq.len] = '\0';
+
+ if (*p == '\0')
+ return;
+
+ while (strescseq.narg < STR_ARG_SIZ) {
+ strescseq.args[strescseq.narg++] = p;
+ while ((c = *p) != ';' && c != '\0')
+ ++p;
+ if (c == '\0')
+ return;
+ *p++ = '\0';
+ }
+}
+
+void
+strdump(void)
+{
+ int i;
+ uint c;
+
+ printf("ESC%c", strescseq.type);
+ for (i = 0; i < strescseq.len; i++) {
+ c = strescseq.buf[i] & 0xff;
+ if (c == '\0') {
+ return;
+ } else if (isprint(c)) {
+ putchar(c);
+ } else if (c == '\n') {
+ printf("(\\n)");
+ } else if (c == '\r') {
+ printf("(\\r)");
+ } else if (c == 0x1b) {
+ printf("(\\e)");
+ } else {
+ printf("(%02x)", c);
+ }
+ }
+ printf("ESC\\\n");
+}
+
+void
+strreset(void)
+{
+ memset(&strescseq, 0, sizeof(strescseq));
+}
+
+void
+tprinter(char *s, size_t len)
+{
+ if (iofd != -1 && xwrite(iofd, s, len) < 0) {
+ fprintf(stderr, "Error writing in %s:%s\n",
+ opt_io, strerror(errno));
+ close(iofd);
+ iofd = -1;
+ }
+}
+
+void
+toggleprinter(const Arg *arg)
+{
+ term.mode ^= MODE_PRINT;
+}
+
+void
+printscreen(const Arg *arg)
+{
+ tdump();
+}
+
+void
+printsel(const Arg *arg)
+{
+ tdumpsel();
+}
+
+void
+tdumpsel(void)
+{
+ char *ptr;
+
+ if ((ptr = getsel())) {
+ tprinter(ptr, strlen(ptr));
+ free(ptr);
+ }
+}
+
+void
+tdumpline(int n)
+{
+ char buf[UTF_SIZ];
+ Glyph *bp, *end;
+
+ bp = &term.line[n][0];
+ end = &bp[MIN(tlinelen(n), term.col) - 1];
+ if (bp != end || bp->u != ' ') {
+ for ( ;bp <= end; ++bp)
+ tprinter(buf, utf8encode(bp->u, buf));
+ }
+ tprinter("\n", 1);
+}
+
+void
+tdump(void)
+{
+ int i;
+
+ for (i = 0; i < term.row; ++i)
+ tdumpline(i);
+}
+
+void
+tputtab(int n)
+{
+ uint x = term.c.x;
+
+ if (n > 0) {
+ while (x < term.col && n--)
+ for (++x; x < term.col && !term.tabs[x]; ++x)
+ /* nothing */ ;
+ } else if (n < 0) {
+ while (x > 0 && n++)
+ for (--x; x > 0 && !term.tabs[x]; --x)
+ /* nothing */ ;
+ }
+ term.c.x = LIMIT(x, 0, term.col-1);
+}
+
+void
+techo(Rune u)
+{
+ if (ISCONTROL(u)) { /* control code */
+ if (u & 0x80) {
+ u &= 0x7f;
+ tputc('^');
+ tputc('[');
+ } else if (u != '\n' && u != '\r' && u != '\t') {
+ u ^= 0x40;
+ tputc('^');
+ }
+ }
+ tputc(u);
+ needdraw = true;
+}
+
+void
+tdeftran(char ascii)
+{
+ static char cs[] = "0B";
+ static int vcs[] = {CS_GRAPHIC0, CS_USA};
+ char *p;
+
+ if ((p = strchr(cs, ascii)) == NULL) {
+ fprintf(stderr, "esc unhandled charset: ESC ( %c\n", ascii);
+ } else {
+ term.trantbl[term.icharset] = vcs[p - cs];
+ }
+}
+
+void
+tdectest(char c)
+{
+ int x, y;
+
+ if (c == '8') { /* DEC screen alignment test. */
+ for (x = 0; x < term.col; ++x) {
+ for (y = 0; y < term.row; ++y)
+ tsetchar('E', &term.c.attr, x, y);
+ }
+ }
+}
+
+void
+tstrsequence(uchar c)
+{
+ switch (c) {
+ case 0x90: /* DCS -- Device Control String */
+ c = 'P';
+ break;
+ case 0x9f: /* APC -- Application Program Command */
+ c = '_';
+ break;
+ case 0x9e: /* PM -- Privacy Message */
+ c = '^';
+ break;
+ case 0x9d: /* OSC -- Operating System Command */
+ c = ']';
+ break;
+ }
+ strreset();
+ strescseq.type = c;
+ term.esc |= ESC_STR;
+}
+
+void
+tcontrolcode(uchar ascii)
+{
+ switch (ascii) {
+ case '\t': /* HT */
+ tputtab(1);
+ return;
+ case '\b': /* BS */
+ tmoveto(term.c.x-1, term.c.y);
+ return;
+ case '\r': /* CR */
+ tmoveto(0, term.c.y);
+ return;
+ case '\f': /* LF */
+ case '\v': /* VT */
+ case '\n': /* LF */
+ /* go to first col if the mode is set */
+ tnewline(IS_SET(MODE_CRLF));
+ return;
+ case '\a': /* BEL */
+ if (term.esc & ESC_STR_END) {
+ /* backwards compatibility to xterm */
+ strhandle();
+ } else {
+ if (!(wl.state & WIN_FOCUSED))
+ wlseturgency(1);
+ /* XXX: No bell on wayland
+ * if (bellvolume)
+ * XkbBell(xw.dpy, xw.win, bellvolume, (Atom)NULL);
+ */
+ }
+ break;
+ case '\033': /* ESC */
+ csireset();
+ term.esc &= ~(ESC_CSI|ESC_ALTCHARSET|ESC_TEST);
+ term.esc |= ESC_START;
+ return;
+ case '\016': /* SO (LS1 -- Locking shift 1) */
+ case '\017': /* SI (LS0 -- Locking shift 0) */
+ term.charset = 1 - (ascii - '\016');
+ return;
+ case '\032': /* SUB */
+ tsetchar('?', &term.c.attr, term.c.x, term.c.y);
+ case '\030': /* CAN */
+ csireset();
+ break;
+ case '\005': /* ENQ (IGNORED) */
+ case '\000': /* NUL (IGNORED) */
+ case '\021': /* XON (IGNORED) */
+ case '\023': /* XOFF (IGNORED) */
+ case 0177: /* DEL (IGNORED) */
+ return;
+ case 0x84: /* TODO: IND */
+ break;
+ case 0x85: /* NEL -- Next line */
+ tnewline(1); /* always go to first col */
+ break;
+ case 0x88: /* HTS -- Horizontal tab stop */
+ term.tabs[term.c.x] = 1;
+ break;
+ case 0x8d: /* TODO: RI */
+ case 0x8e: /* TODO: SS2 */
+ case 0x8f: /* TODO: SS3 */
+ case 0x98: /* TODO: SOS */
+ break;
+ case 0x9a: /* DECID -- Identify Terminal */
+ ttywrite(vtiden, sizeof(vtiden) - 1);
+ break;
+ case 0x9b: /* TODO: CSI */
+ case 0x9c: /* TODO: ST */
+ break;
+ case 0x90: /* DCS -- Device Control String */
+ case 0x9f: /* APC -- Application Program Command */
+ case 0x9e: /* PM -- Privacy Message */
+ case 0x9d: /* OSC -- Operating System Command */
+ tstrsequence(ascii);
+ return;
+ }
+ /* only CAN, SUB, \a and C1 chars interrupt a sequence */
+ term.esc &= ~(ESC_STR_END|ESC_STR);
+}
+
+/*
+ * returns 1 when the sequence is finished and it hasn't to read
+ * more characters for this sequence, otherwise 0
+ */
+int
+eschandle(uchar ascii)
+{
+ switch (ascii) {
+ case '[':
+ term.esc |= ESC_CSI;
+ return 0;
+ case '#':
+ term.esc |= ESC_TEST;
+ return 0;
+ case 'P': /* DCS -- Device Control String */
+ case '_': /* APC -- Application Program Command */
+ case '^': /* PM -- Privacy Message */
+ case ']': /* OSC -- Operating System Command */
+ case 'k': /* old title set compatibility */
+ tstrsequence(ascii);
+ return 0;
+ case 'n': /* LS2 -- Locking shift 2 */
+ case 'o': /* LS3 -- Locking shift 3 */
+ term.charset = 2 + (ascii - 'n');
+ break;
+ case '(': /* GZD4 -- set primary charset G0 */
+ case ')': /* G1D4 -- set secondary charset G1 */
+ case '*': /* G2D4 -- set tertiary charset G2 */
+ case '+': /* G3D4 -- set quaternary charset G3 */
+ term.icharset = ascii - '(';
+ term.esc |= ESC_ALTCHARSET;
+ return 0;
+ case 'D': /* IND -- Linefeed */
+ if (term.c.y == term.bot) {
+ tscrollup(term.top, 1);
+ } else {
+ tmoveto(term.c.x, term.c.y+1);
+ }
+ break;
+ case 'E': /* NEL -- Next line */
+ tnewline(1); /* always go to first col */
+ break;
+ case 'H': /* HTS -- Horizontal tab stop */
+ term.tabs[term.c.x] = 1;
+ break;
+ case 'M': /* RI -- Reverse index */
+ if (term.c.y == term.top) {
+ tscrolldown(term.top, 1);
+ } else {
+ tmoveto(term.c.x, term.c.y-1);
+ }
+ break;
+ case 'Z': /* DECID -- Identify Terminal */
+ ttywrite(vtiden, sizeof(vtiden) - 1);
+ break;
+ case 'c': /* RIS -- Reset to inital state */
+ treset();
+ wlresettitle();
+ wlloadcols();
+ break;
+ case '=': /* DECPAM -- Application keypad */
+ term.mode |= MODE_APPKEYPAD;
+ break;
+ case '>': /* DECPNM -- Normal keypad */
+ term.mode &= ~MODE_APPKEYPAD;
+ break;
+ case '7': /* DECSC -- Save Cursor */
+ tcursor(CURSOR_SAVE);
+ break;
+ case '8': /* DECRC -- Restore Cursor */
+ tcursor(CURSOR_LOAD);
+ break;
+ case '\\': /* ST -- String Terminator */
+ if (term.esc & ESC_STR_END)
+ strhandle();
+ break;
+ default:
+ fprintf(stderr, "erresc: unknown sequence ESC 0x%02X '%c'\n",
+ (uchar) ascii, isprint(ascii)? ascii:'.');
+ break;
+ }
+ return 1;
+}
+
+void
+tputc(Rune u)
+{
+ char c[UTF_SIZ];
+ int control;
+ int width, len;
+ Glyph *gp;
+
+ control = ISCONTROL(u);
+ len = utf8encode(u, c);
+ if (!control && (width = wcwidth(u)) == -1) {
+ memcpy(c, "\357\277\275", 4); /* UTF_INVALID */
+ width = 1;
+ }
+
+ if (IS_SET(MODE_PRINT))
+ tprinter(c, len);
+
+ /*
+ * STR sequence must be checked before anything else
+ * because it uses all following characters until it
+ * receives a ESC, a SUB, a ST or any other C1 control
+ * character.
+ */
+ if (term.esc & ESC_STR) {
+ if (u == '\a' || u == 030 || u == 032 || u == 033 ||
+ ISCONTROLC1(u)) {
+ term.esc &= ~(ESC_START|ESC_STR);
+ term.esc |= ESC_STR_END;
+ } else if (strescseq.len + len < sizeof(strescseq.buf) - 1) {
+ memmove(&strescseq.buf[strescseq.len], c, len);
+ strescseq.len += len;
+ return;
+ } else {
+ /*
+ * Here is a bug in terminals. If the user never sends
+ * some code to stop the str or esc command, then st
+ * will stop responding. But this is better than
+ * silently failing with unknown characters. At least
+ * then users will report back.
+ *
+ * In the case users ever get fixed, here is the code:
+ */
+ /*
+ * term.esc = 0;
+ * strhandle();
+ */
+ return;
+ }
+ }
+
+ /*
+ * Actions of control codes must be performed as soon they arrive
+ * because they can be embedded inside a control sequence, and
+ * they must not cause conflicts with sequences.
+ */
+ if (control) {
+ tcontrolcode(u);
+ /*
+ * control codes are not shown ever
+ */
+ return;
+ } else if (term.esc & ESC_START) {
+ if (term.esc & ESC_CSI) {
+ csiescseq.buf[csiescseq.len++] = u;
+ if (BETWEEN(u, 0x40, 0x7E)
+ || csiescseq.len >= \
+ sizeof(csiescseq.buf)-1) {
+ term.esc = 0;
+ csiparse();
+ csihandle();
+ }
+ return;
+ } else if (term.esc & ESC_ALTCHARSET) {
+ tdeftran(u);
+ } else if (term.esc & ESC_TEST) {
+ tdectest(u);
+ } else {
+ if (!eschandle(u))
+ return;
+ /* sequence already finished */
+ }
+ term.esc = 0;
+ /*
+ * All characters which form part of a sequence are not
+ * printed
+ */
+ return;
+ }
+ if (sel.ob.x != -1 && BETWEEN(term.c.y, sel.ob.y, sel.oe.y))
+ selclear();
+
+ gp = &term.line[term.c.y][term.c.x];
+ if (IS_SET(MODE_WRAP) && (term.c.state & CURSOR_WRAPNEXT)) {
+ gp->mode |= ATTR_WRAP;
+ tnewline(1);
+ gp = &term.line[term.c.y][term.c.x];
+ }
+
+ if (IS_SET(MODE_INSERT) && term.c.x+width < term.col)
+ memmove(gp+width, gp, (term.col - term.c.x - width) * sizeof(Glyph));
+
+ if (term.c.x+width > term.col) {
+ tnewline(1);
+ gp = &term.line[term.c.y][term.c.x];
+ }
+
+ tsetchar(u, &term.c.attr, term.c.x, term.c.y);
+
+ if (width == 2) {
+ gp->mode |= ATTR_WIDE;
+ if (term.c.x+1 < term.col) {
+ gp[1].u = '\0';
+ gp[1].mode = ATTR_WDUMMY;
+ }
+ }
+ if (term.c.x+width < term.col) {
+ tmoveto(term.c.x+width, term.c.y);
+ } else {
+ term.c.state |= CURSOR_WRAPNEXT;
+ }
+}
+
+void
+tresize(int col, int row)
+{
+ int i;
+ int minrow = MIN(row, term.row);
+ int mincol = MIN(col, term.col);
+ int *bp;
+ TCursor c;
+
+ if (col < 1 || row < 1) {
+ fprintf(stderr,
+ "tresize: error resizing to %dx%d\n", col, row);
+ return;
+ }
+
+ /*
+ * slide screen to keep cursor where we expect it -
+ * tscrollup would work here, but we can optimize to
+ * memmove because we're freeing the earlier lines
+ */
+ for (i = 0; i <= term.c.y - row; i++) {
+ free(term.line[i]);
+ free(term.alt[i]);
+ }
+ /* ensure that both src and dst are not NULL */
+ if (i > 0) {
+ memmove(term.line, term.line + i, row * sizeof(Line));
+ memmove(term.alt, term.alt + i, row * sizeof(Line));
+ }
+ for (i += row; i < term.row; i++) {
+ free(term.line[i]);
+ free(term.alt[i]);
+ }
+
+ /* resize to new height */
+ term.line = xrealloc(term.line, row * sizeof(Line));
+ term.alt = xrealloc(term.alt, row * sizeof(Line));
+ term.dirty = xrealloc(term.dirty, row * sizeof(*term.dirty));
+ term.tabs = xrealloc(term.tabs, col * sizeof(*term.tabs));
+
+ /* resize each row to new width, zero-pad if needed */
+ for (i = 0; i < minrow; i++) {
+ term.line[i] = xrealloc(term.line[i], col * sizeof(Glyph));
+ term.alt[i] = xrealloc(term.alt[i], col * sizeof(Glyph));
+ }
+
+ /* allocate any new rows */
+ for (/* i == minrow */; i < row; i++) {
+ term.line[i] = xmalloc(col * sizeof(Glyph));
+ term.alt[i] = xmalloc(col * sizeof(Glyph));
+ }
+ if (col > term.col) {
+ bp = term.tabs + term.col;
+
+ memset(bp, 0, sizeof(*term.tabs) * (col - term.col));
+ while (--bp > term.tabs && !*bp)
+ /* nothing */ ;
+ for (bp += tabspaces; bp < term.tabs + col; bp += tabspaces)
+ *bp = 1;
+ }
+ /* update terminal size */
+ term.col = col;
+ term.row = row;
+ /* reset scrolling region */
+ tsetscroll(0, row-1);
+ /* make use of the LIMIT in tmoveto */
+ tmoveto(term.c.x, term.c.y);
+ /* Clearing both screens (it makes dirty all lines) */
+ c = term.c;
+ for (i = 0; i < 2; i++) {
+ if (mincol < col && 0 < minrow) {
+ tclearregion(mincol, 0, col - 1, minrow - 1);
+ }
+ if (0 < col && minrow < row) {
+ tclearregion(0, minrow, col - 1, row - 1);
+ }
+ tswapscreen();
+ tcursor(CURSOR_LOAD);
+ }
+ term.c = c;
+}
+
+void
+wlresize(int col, int row)
+{
+ union wld_object object;
+
+ wl.tw = MAX(1, col * wl.cw);
+ wl.th = MAX(1, row * wl.ch);
+
+ wld.oldbuffer = wld.buffer;
+ wld.buffer = wld_create_buffer(wld.ctx, wl.w, wl.h,
+ WLD_FORMAT_ARGB8888, 0);
+ wld_export(wld.buffer, WLD_WAYLAND_OBJECT_BUFFER, &object);
+ wl.buffer = object.ptr;
+}
+
+uchar
+sixd_to_8bit(int x)
+{
+ return x == 0 ? 0 : 0x37 + 0x28 * x;
+}
+
+int
+wlloadcolor(int i, const char *name, uint32_t *color)
+{
+ if (!name) {
+ if (BETWEEN(i, 16, 255)) { /* 256 color */
+ if (i < 6*6*6+16) { /* same colors as xterm */
+ *color = 0xff << 24 | sixd_to_8bit(((i-16)/36)%6) << 16
+ | sixd_to_8bit(((i-16)/6)%6) << 8
+ | sixd_to_8bit(((i-16)/1)%6);
+ } else { /* greyscale */
+ *color = 0xff << 24 | (0x8 + 0xa * (i-(6*6*6+16))) * 0x10101;
+ }
+ return true;
+ } else
+ name = colorname[i];
+ }
+
+ return wld_lookup_named_color(name, color);
+}
+
+void
+wlloadcols(void)
+{
+ int i;
+
+ for (i = 0; i < LEN(dc.col); i++)
+ if (!wlloadcolor(i, NULL, &dc.col[i])) {
+ if (colorname[i])
+ die("Could not allocate color '%s'\n", colorname[i]);
+ else
+ die("Could not allocate color %d\n", i);
+ }
+}
+
+int
+wlsetcolorname(int x, const char *name)
+{
+ uint32_t color;
+
+ if (!BETWEEN(x, 0, LEN(dc.col)))
+ return 1;
+
+ if (!wlloadcolor(x, name, &color))
+ return 1;
+
+ dc.col[x] = color;
+
+ return 0;
+}
+
+static void wlloadcursor(void)
+{
+ char *names[] = { mouseshape, "xterm", "ibeam", "text" };
+ int i;
+
+ cursor.theme = wl_cursor_theme_load(NULL, 32, wl.shm);
+
+ for (i = 0; !cursor.cursor && i < LEN(names); i++)
+ cursor.cursor = wl_cursor_theme_get_cursor(cursor.theme, names[i]);
+
+ cursor.surface = wl_compositor_create_surface(wl.cmp);
+}
+
+void
+wltermclear(int col1, int row1, int col2, int row2)
+{
+ uint32_t color = dc.col[IS_SET(MODE_REVERSE) ? defaultfg : defaultbg];
+ wld_fill_rectangle(wld.renderer, color, borderpx + col1 * wl.cw,
+ borderpx + row1 * wl.ch, (col2-col1+1) * wl.cw,
+ (row2-row1+1) * wl.ch);
+}
+
+/*
+ * Absolute coordinates.
+ */
+void
+wlclear(int x1, int y1, int x2, int y2)
+{
+ uint32_t color = dc.col[IS_SET(MODE_REVERSE) ? defaultfg : defaultbg];
+ wld_fill_rectangle(wld.renderer, color, x1, y1, x2 - x1, y2 - y1);
+}
+
+int
+wlloadfont(Font *f, FcPattern *pattern)
+{
+ FcPattern *match;
+ FcResult result;
+
+ match = FcFontMatch(NULL, pattern, &result);
+ if (!match)
+ return 1;
+
+ if (!(f->match = wld_font_open_pattern(wld.fontctx, match))) {
+ FcPatternDestroy(match);
+ return 1;
+ }
+
+ f->set = NULL;
+ f->pattern = FcPatternDuplicate(pattern);
+
+ f->ascent = f->match->ascent;
+ f->descent = f->match->descent;
+ f->lbearing = 0;
+ f->rbearing = f->match->max_advance;
+
+ f->height = f->ascent + f->descent;
+ f->width = f->lbearing + f->rbearing;
+
+ return 0;
+}
+
+void
+wlloadfonts(char *fontstr, double fontsize)
+{
+ FcPattern *pattern;
+ double fontval;
+ float ceilf(float);
+
+ if (fontstr[0] == '-') {
+ /* XXX: need XftXlfdParse equivalent */
+ pattern = NULL;
+ } else {
+ pattern = FcNameParse((FcChar8 *)fontstr);
+ }
+
+ if (!pattern)
+ die("st: can't open font %s\n", fontstr);
+
+ if (fontsize > 1) {
+ FcPatternDel(pattern, FC_PIXEL_SIZE);
+ FcPatternDel(pattern, FC_SIZE);
+ FcPatternAddDouble(pattern, FC_PIXEL_SIZE, (double)fontsize);
+ usedfontsize = fontsize;
+ } else {
+ if (FcPatternGetDouble(pattern, FC_PIXEL_SIZE, 0, &fontval) ==
+ FcResultMatch) {
+ usedfontsize = fontval;
+ } else if (FcPatternGetDouble(pattern, FC_SIZE, 0, &fontval) ==
+ FcResultMatch) {
+ usedfontsize = -1;
+ } else {
+ /*
+ * Default font size is 12, if none given. This is to
+ * have a known usedfontsize value.
+ */
+ FcPatternAddDouble(pattern, FC_PIXEL_SIZE, 12);
+ usedfontsize = 12;
+ }
+ defaultfontsize = usedfontsize;
+ }
+
+ FcConfigSubstitute(0, pattern, FcMatchPattern);
+ FcDefaultSubstitute(pattern);
+
+ if (wlloadfont(&dc.font, pattern))
+ die("st: can't open font %s\n", fontstr);
+
+ if (usedfontsize < 0) {
+ FcPatternGetDouble(dc.font.pattern,
+ FC_PIXEL_SIZE, 0, &fontval);
+ usedfontsize = fontval;
+ if (fontsize == 0)
+ defaultfontsize = fontval;
+ }
+
+ /* Setting character width and height. */
+ wl.cw = ceilf(dc.font.width * cwscale);
+ wl.ch = ceilf(dc.font.height * chscale);
+
+ FcPatternDel(pattern, FC_SLANT);
+ FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ITALIC);
+ if (wlloadfont(&dc.ifont, pattern))
+ die("st: can't open font %s\n", fontstr);
+
+ FcPatternDel(pattern, FC_WEIGHT);
+ FcPatternAddInteger(pattern, FC_WEIGHT, FC_WEIGHT_BOLD);
+ if (wlloadfont(&dc.ibfont, pattern))
+ die("st: can't open font %s\n", fontstr);
+
+ FcPatternDel(pattern, FC_SLANT);
+ FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ROMAN);
+ if (wlloadfont(&dc.bfont, pattern))
+ die("st: can't open font %s\n", fontstr);
+
+ FcPatternDestroy(pattern);
+}
+
+void
+wlunloadfont(Font *f)
+{
+ wld_font_close(f->match);
+ FcPatternDestroy(f->pattern);
+ if (f->set)
+ FcFontSetDestroy(f->set);
+}
+
+void
+wlunloadfonts(void)
+{
+ /* Free the loaded fonts in the font cache. */
+ while (frclen > 0)
+ wld_font_close(frc[--frclen].font);
+
+ wlunloadfont(&dc.font);
+ wlunloadfont(&dc.bfont);
+ wlunloadfont(&dc.ifont);
+ wlunloadfont(&dc.ibfont);
+}
+
+void
+wlzoom(const Arg *arg)
+{
+ Arg larg;
+
+ larg.f = usedfontsize + arg->f;
+ wlzoomabs(&larg);
+}
+
+void
+wlzoomabs(const Arg *arg)
+{
+ wlunloadfonts();
+ wlloadfonts(usedfont, arg->f);
+ cresize(0, 0);
+ redraw();
+ /* XXX: Should the window size be updated here because wayland doesn't
+ * have a notion of hints?
+ * xhints();
+ */
+}
+
+void
+wlzoomreset(const Arg *arg)
+{
+ Arg larg;
+
+ if (defaultfontsize > 0) {
+ larg.f = defaultfontsize;
+ wlzoomabs(&larg);
+ }
+}
+
+void
+wlinit(void)
+{
+ struct wl_registry *registry;
+
+ if (!(wl.dpy = wl_display_connect(NULL)))
+ die("Can't open display\n");
+
+ registry = wl_display_get_registry(wl.dpy);
+ wl_registry_add_listener(registry, &reglistener, NULL);
+ wld.ctx = wld_wayland_create_context(wl.dpy, WLD_SHM);
+ wld.renderer = wld_create_renderer(wld.ctx);
+ wl_display_roundtrip(wl.dpy);
+
+ if (!wl.shm)
+ die("Display has no SHM\n");
+ if (!wl.seat)
+ die("Display has no seat\n");
+ if (!wl.datadevmanager)
+ die("Display has no data device manager\n");
+
+ wl.keyboard = wl_seat_get_keyboard(wl.seat);
+ wl_keyboard_add_listener(wl.keyboard, &kbdlistener, NULL);
+ wl.pointer = wl_seat_get_pointer(wl.seat);
+ wl_pointer_add_listener(wl.pointer, &ptrlistener, NULL);
+ wl.datadev = wl_data_device_manager_get_data_device(wl.datadevmanager,
+ wl.seat);
+ wl_data_device_add_listener(wl.datadev, &datadevlistener, NULL);
+
+ /* font */
+ if (!FcInit())
+ die("Could not init fontconfig.\n");
+
+ usedfont = (opt_font == NULL)? font : opt_font;
+ wld.fontctx = wld_font_create_context();
+ wlloadfonts(usedfont, 0);
+
+ wlloadcols();
+ wlloadcursor();
+
+ wl.vis = 0;
+ wl.h = 2 * borderpx + term.row * wl.ch;
+ wl.w = 2 * borderpx + term.col * wl.cw;
+
+ wl.surface = wl_compositor_create_surface(wl.cmp);
+ wl_surface_add_listener(wl.surface, &surflistener, NULL);
+
+ wl.xdgsurface = xdg_shell_get_xdg_surface(wl.shell, wl.surface);
+ xdg_surface_add_listener(wl.xdgsurface, &xdgsurflistener, NULL);
+ xdg_surface_set_app_id(wl.xdgsurface, opt_class ? opt_class : termname);
+
+ wl.xkb.ctx = xkb_context_new(0);
+ wlresettitle();
+}
+
+/*
+ * TODO: Implement something like XftDrawGlyphFontSpec in wld, and then apply a
+ * similar patch to ae1923d27533ff46400d93765e971558201ca1ee
+ */
+
+void
+wldraws(char *s, Glyph base, int x, int y, int charlen, int bytelen)
+{
+ int winx = borderpx + x * wl.cw, winy = borderpx + y * wl.ch,
+ width = charlen * wl.cw, xp, i;
+ int frcflags, charexists;
+ int u8fl, u8fblen, u8cblen, doesexist;
+ char *u8c, *u8fs;
+ Rune unicodep;
+ Font *font = &dc.font;
+ FcResult fcres;
+ FcPattern *fcpattern, *fontpattern;
+ FcFontSet *fcsets[] = { NULL };
+ FcCharSet *fccharset;
+ uint32_t fg, bg, temp;
+ int oneatatime;
+
+ frcflags = FRC_NORMAL;
+
+ if (base.mode & ATTR_ITALIC) {
+ if (base.fg == defaultfg)
+ base.fg = defaultitalic;
+ font = &dc.ifont;
+ frcflags = FRC_ITALIC;
+ } else if ((base.mode & ATTR_ITALIC) && (base.mode & ATTR_BOLD)) {
+ if (base.fg == defaultfg)
+ base.fg = defaultitalic;
+ font = &dc.ibfont;
+ frcflags = FRC_ITALICBOLD;
+ } else if (base.mode & ATTR_UNDERLINE) {
+ if (base.fg == defaultfg)
+ base.fg = defaultunderline;
+ }
+
+ if (IS_TRUECOL(base.fg)) {
+ fg = base.fg;
+ } else {
+ fg = dc.col[base.fg];
+ }
+
+ if (IS_TRUECOL(base.bg)) {
+ bg = base.bg | 0xff000000;
+ } else {
+ bg = dc.col[base.bg];
+ }
+
+ if (base.mode & ATTR_BOLD) {
+ /*
+ * change basic system colors [0-7]
+ * to bright system colors [8-15]
+ */
+ if (BETWEEN(base.fg, 0, 7) && !(base.mode & ATTR_FAINT))
+ fg = dc.col[base.fg + 8];
+
+ if (base.mode & ATTR_ITALIC) {
+ font = &dc.ibfont;
+ frcflags = FRC_ITALICBOLD;
+ } else {
+ font = &dc.bfont;
+ frcflags = FRC_BOLD;
+ }
+ }
+
+ if (IS_SET(MODE_REVERSE)) {
+ if (fg == dc.col[defaultfg]) {
+ fg = dc.col[defaultbg];
+ } else {
+ fg = ~(fg & 0xffffff);
+ }
+
+ if (bg == dc.col[defaultbg]) {
+ bg = dc.col[defaultfg];
+ } else {
+ bg = ~(bg & 0xffffff);
+ }
+ }
+
+ if (base.mode & ATTR_REVERSE) {
+ temp = fg;
+ fg = bg;
+ bg = temp;
+ }
+
+ if (base.mode & ATTR_FAINT && !(base.mode & ATTR_BOLD)) {
+ fg = (fg & (0xff << 24))
+ | ((((fg >> 16) & 0xff) / 2) << 16)
+ | ((((fg >> 8) & 0xff) / 2) << 8)
+ | ((fg & 0xff) / 2);
+ }
+
+ if (base.mode & ATTR_BLINK && term.mode & MODE_BLINK)
+ fg = bg;
+
+ if (base.mode & ATTR_INVISIBLE)
+ fg = bg;
+
+ /* Intelligent cleaning up of the borders. */
+ if (x == 0) {
+ wlclear(0, (y == 0)? 0 : winy, borderpx,
+ ((y >= term.row-1)? wl.h : (winy + wl.ch)));
+ }
+ if (x + charlen >= term.col) {
+ wlclear(winx + width, (y == 0)? 0 : winy, wl.w,
+ ((y >= term.row-1)? wl.h : (winy + wl.ch)));
+ }
+ if (y == 0)
+ wlclear(winx, 0, winx + width, borderpx);
+ if (y == term.row-1)
+ wlclear(winx, winy + wl.ch, winx + width, wl.h);
+
+ /* Clean up the region we want to draw to. */
+ wld_fill_rectangle(wld.renderer, (bg & (term_alpha << 24)) | (bg & 0x00FFFFFF), winx, winy, width, wl.ch);
+ for (xp = winx; bytelen > 0;) {
+ /*
+ * Search for the range in the to be printed string of glyphs
+ * that are in the main font. Then print that range. If
+ * some glyph is found that is not in the font, do the
+ * fallback dance.
+ */
+ u8fs = s;
+ u8fblen = 0;
+ u8fl = 0;
+ oneatatime = font->width != wl.cw;
+ for (;;) {
+ u8c = s;
+ u8cblen = utf8decode(s, &unicodep, UTF_SIZ);
+ s += u8cblen;
+ bytelen -= u8cblen;
+
+ doesexist = wld_font_ensure_char(font->match, unicodep);
+ if (doesexist) {
+ u8fl++;
+ u8fblen += u8cblen;
+ if (!oneatatime && bytelen > 0)
+ continue;
+ }
+
+ if (u8fl > 0) {
+ wld_draw_text(wld.renderer,
+ font->match, fg, xp,
+ winy + font->ascent,
+ u8fs, u8fblen, NULL);
+ xp += wl.cw * u8fl;
+ }
+ break;
+ }
+ if (doesexist) {
+ if (oneatatime)
+ continue;
+ break;
+ }
+
+ /* Search the font cache. */
+ for (i = 0; i < frclen; i++) {
+ charexists = wld_font_ensure_char(frc[i].font, unicodep);
+ /* Everything correct. */
+ if (charexists && frc[i].flags == frcflags)
+ break;
+ /* We got a default font for a not found glyph. */
+ if (!charexists && frc[i].flags == frcflags \
+ && frc[i].unicodep == unicodep) {
+ break;
+ }
+ }
+
+ /* Nothing was found. */
+ if (i >= frclen) {
+ if (!font->set)
+ font->set = FcFontSort(0, font->pattern,
+ 1, 0, &fcres);
+ fcsets[0] = font->set;
+
+ /*
+ * Nothing was found in the cache. Now use
+ * some dozen of Fontconfig calls to get the
+ * font for one single character.
+ *
+ * Xft and fontconfig are design failures.
+ */
+ fcpattern = FcPatternDuplicate(font->pattern);
+ fccharset = FcCharSetCreate();
+
+ FcCharSetAddChar(fccharset, unicodep);
+ FcPatternAddCharSet(fcpattern, FC_CHARSET,
+ fccharset);
+ FcPatternAddBool(fcpattern, FC_SCALABLE, 1);
+
+ FcConfigSubstitute(0, fcpattern,
+ FcMatchPattern);
+ FcDefaultSubstitute(fcpattern);
+
+ fontpattern = FcFontSetMatch(0, fcsets, 1,
+ fcpattern, &fcres);
+
+ /*
+ * Overwrite or create the new cache entry.
+ */
+ if (frclen >= LEN(frc)) {
+ frclen = LEN(frc) - 1;
+ wld_font_close(frc[frclen].font);
+ frc[frclen].unicodep = 0;
+ }
+
+ frc[frclen].font = wld_font_open_pattern(wld.fontctx,
+ fontpattern);
+ frc[frclen].flags = frcflags;
+ frc[frclen].unicodep = unicodep;
+
+ i = frclen;
+ frclen++;
+
+ FcPatternDestroy(fcpattern);
+ FcCharSetDestroy(fccharset);
+ }
+
+ wld_draw_text(wld.renderer, frc[i].font, fg,
+ xp, winy + frc[i].font->ascent,
+ u8c, u8cblen, NULL);
+
+ xp += wl.cw * wcwidth(unicodep);
+ }
+
+ if (base.mode & ATTR_UNDERLINE) {
+ wld_fill_rectangle(wld.renderer, fg, winx, winy + font->ascent + 1,
+ width, 1);
+ }
+
+ if (base.mode & ATTR_STRUCK) {
+ wld_fill_rectangle(wld.renderer, fg, winx, winy + 2 * font->ascent / 3,
+ width, 1);
+ }
+}
+
+void
+wldrawglyph(Glyph g, int x, int y)
+{
+ static char buf[UTF_SIZ];
+ size_t len = utf8encode(g.u, buf);
+ int width = g.mode & ATTR_WIDE ? 2 : 1;
+
+ wldraws(buf, g, x, y, width, len);
+}
+
+void
+wldrawcursor(void)
+{
+ static int oldx = 0, oldy = 0;
+ int curx;
+ Glyph g = {' ', ATTR_NULL, defaultbg, defaultcs};
+
+ LIMIT(oldx, 0, term.col-1);
+ LIMIT(oldy, 0, term.row-1);
+
+ curx = term.c.x;
+
+ /* adjust position if in dummy */
+ if (term.line[oldy][oldx].mode & ATTR_WDUMMY)
+ oldx--;
+ if (term.line[term.c.y][curx].mode & ATTR_WDUMMY)
+ curx--;
+
+ g.u = term.line[term.c.y][term.c.x].u;
+
+ /* remove the old cursor */
+ wldrawglyph(term.line[oldy][oldx], oldx, oldy);
+ if (oldx != curx || oldy != term.c.y) {
+ wl_surface_damage(wl.surface, borderpx + oldx * wl.cw,
+ borderpx + oldy * wl.ch, wl.cw, wl.ch);
+ }
+
+ if (IS_SET(MODE_HIDE))
+ return;
+ uint32_t cs = dc.col[defaultcs] & (term_alpha << 24);
+ /* draw the new one */
+ if (wl.state & WIN_FOCUSED) {
+ switch (wl.cursor) {
+ case 0: /* Blinking Block */
+ case 1: /* Blinking Block (Default) */
+ case 2: /* Steady Block */
+ if (IS_SET(MODE_REVERSE)) {
+ g.mode |= ATTR_REVERSE;
+ g.fg = defaultcs;
+ g.bg = defaultfg;
+ }
+
+ g.mode |= term.line[term.c.y][curx].mode & ATTR_WIDE;
+ wldrawglyph(g, term.c.x, term.c.y);
+ break;
+ case 3: /* Blinking Underline */
+ case 4: /* Steady Underline */
+ wld_fill_rectangle(wld.renderer, cs,
+ borderpx + curx * wl.cw,
+ borderpx + (term.c.y + 1) * wl.ch - cursorthickness,
+ wl.cw, cursorthickness);
+ break;
+ case 5: /* Blinking bar */
+ case 6: /* Steady bar */
+ wld_fill_rectangle(wld.renderer, cs,
+ borderpx + curx * wl.cw,
+ borderpx + term.c.y * wl.ch,
+ cursorthickness, wl.ch);
+ break;
+ }
+ } else {
+ wld_fill_rectangle(wld.renderer, cs,
+ borderpx + curx * wl.cw,
+ borderpx + term.c.y * wl.ch,
+ wl.cw - 1, 1);
+ wld_fill_rectangle(wld.renderer, cs,
+ borderpx + curx * wl.cw,
+ borderpx + term.c.y * wl.ch,
+ 1, wl.ch - 1);
+ wld_fill_rectangle(wld.renderer, cs,
+ borderpx + (curx + 1) * wl.cw - 1,
+ borderpx + term.c.y * wl.ch,
+ 1, wl.ch - 1);
+ wld_fill_rectangle(wld.renderer, cs,
+ borderpx + curx * wl.cw,
+ borderpx + (term.c.y + 1) * wl.ch - 1,
+ wl.cw, 1);
+ }
+ wl_surface_damage(wl.surface, borderpx + curx * wl.cw,
+ borderpx + term.c.y * wl.ch, wl.cw, wl.ch);
+ oldx = curx, oldy = term.c.y;
+}
+
+void
+wlsettitle(char *title)
+{
+ xdg_surface_set_title(wl.xdgsurface, title);
+}
+
+void
+wlresettitle(void)
+{
+ wlsettitle(opt_title ? opt_title : "st");
+}
+
+void
+redraw(void)
+{
+ tfulldirt();
+}
+
+void
+draw(void)
+{
+ int y, y0;
+
+ for (y = 0; y <= term.bot; ++y) {
+ if (!term.dirty[y])
+ continue;
+ for (y0 = y; y <= term.bot && term.dirty[y]; ++y);
+ wl_surface_damage(wl.surface, 0, borderpx + y0 * wl.ch,
+ wl.w, (y - y0) * wl.ch);
+ }
+
+ wld_set_target_buffer(wld.renderer, wld.buffer);
+ drawregion(0, 0, term.col, term.row);
+ wl.framecb = wl_surface_frame(wl.surface);
+ wl_callback_add_listener(wl.framecb, &framelistener, NULL);
+ wld_flush(wld.renderer);
+ wl_surface_attach(wl.surface, wl.buffer, 0, 0);
+ wl_surface_commit(wl.surface);
+ /* need to wait to destroy the old buffer until we commit the new
+ * buffer */
+ if (wld.oldbuffer) {
+ wld_buffer_unreference(wld.oldbuffer);
+ wld.oldbuffer = 0;
+ }
+ needdraw = false;
+}
+
+void
+drawregion(int x1, int y1, int x2, int y2)
+{
+ int ic, ib, x, y, ox;
+ Glyph base, new;
+ char buf[DRAW_BUF_SIZ];
+ int ena_sel = sel.ob.x != -1 && sel.alt == IS_SET(MODE_ALTSCREEN);
+
+ for (y = y1; y < y2; y++) {
+ if (!term.dirty[y])
+ continue;
+
+ wltermclear(0, y, term.col, y);
+ term.dirty[y] = 0;
+ base = term.line[y][0];
+ ic = ib = ox = 0;
+ for (x = x1; x < x2; x++) {
+ new = term.line[y][x];
+ if (new.mode == ATTR_WDUMMY)
+ continue;
+ if (ena_sel && selected(x, y))
+ new.mode ^= ATTR_REVERSE;
+ if (ib > 0 && (ATTRCMP(base, new)
+ || ib >= DRAW_BUF_SIZ-UTF_SIZ)) {
+ wldraws(buf, base, ox, y, ic, ib);
+ ic = ib = 0;
+ }
+ if (ib == 0) {
+ ox = x;
+ base = new;
+ }
+
+ ib += utf8encode(new.u, buf+ib);
+ ic += (new.mode & ATTR_WIDE)? 2 : 1;
+ }
+ if (ib > 0)
+ wldraws(buf, base, ox, y, ic, ib);
+ }
+ wldrawcursor();
+}
+
+void
+wlseturgency(int add)
+{
+ /* XXX: no urgency equivalent yet in wayland */
+}
+
+int
+match(uint mask, uint state)
+{
+ return mask == MOD_MASK_ANY || mask == (state & ~(ignoremod));
+}
+
+void
+numlock(const Arg *dummy)
+{
+ term.numlock ^= 1;
+}
+
+char*
+kmap(xkb_keysym_t k, uint state)
+{
+ Key *kp;
+ int i;
+
+ /* Check for mapped keys out of X11 function keys. */
+ for (i = 0; i < LEN(mappedkeys); i++) {
+ if (mappedkeys[i] == k)
+ break;
+ }
+ if (i == LEN(mappedkeys)) {
+ if ((k & 0xFFFF) < 0xFD00)
+ return NULL;
+ }
+
+ for (kp = key; kp < key + LEN(key); kp++) {
+ if (kp->k != k)
+ continue;
+
+ if (!match(kp->mask, state))
+ continue;
+
+ if (IS_SET(MODE_APPKEYPAD) ? kp->appkey < 0 : kp->appkey > 0)
+ continue;
+ if (term.numlock && kp->appkey == 2)
+ continue;
+
+ if (IS_SET(MODE_APPCURSOR) ? kp->appcursor < 0 : kp->appcursor > 0)
+ continue;
+
+ if (IS_SET(MODE_CRLF) ? kp->crlf < 0 : kp->crlf > 0)
+ continue;
+
+ return kp->s;
+ }
+
+ return NULL;
+}
+
+void
+cresize(int width, int height)
+{
+ int col, row;
+
+ if (width != 0)
+ wl.w = width;
+ if (height != 0)
+ wl.h = height;
+
+ col = (wl.w - 2 * borderpx) / wl.cw;
+ row = (wl.h - 2 * borderpx) / wl.ch;
+
+ tresize(col, row);
+ wlresize(col, row);
+ ttyresize();
+}
+
+void
+regglobal(void *data, struct wl_registry *registry, uint32_t name,
+ const char *interface, uint32_t version)
+{
+ if (strcmp(interface, "wl_compositor") == 0) {
+ wl.cmp = wl_registry_bind(registry, name,
+ &wl_compositor_interface, 3);
+ } else if (strcmp(interface, "xdg_shell") == 0) {
+ wl.shell = wl_registry_bind(registry, name,
+ &xdg_shell_interface, 1);
+ xdg_shell_add_listener(wl.shell, &xdgshelllistener, NULL);
+ xdg_shell_use_unstable_version(wl.shell,
+ XDG_SHELL_VERSION_CURRENT);
+ } else if (strcmp(interface, "wl_shm") == 0) {
+ wl.shm = wl_registry_bind(registry, name, &wl_shm_interface, 1);
+ } else if (strcmp(interface, "wl_seat") == 0) {
+ wl.seat = wl_registry_bind(registry, name,
+ &wl_seat_interface, 4);
+ } else if (strcmp(interface, "wl_data_device_manager") == 0) {
+ wl.datadevmanager = wl_registry_bind(registry, name,
+ &wl_data_device_manager_interface, 1);
+ } else if (strcmp(interface, "wl_output") == 0) {
+ /* bind to outputs so we can get surface enter events */
+ wl_registry_bind(registry, name, &wl_output_interface, 2);
+ }
+}
+
+void
+regglobalremove(void *data, struct wl_registry *registry, uint32_t name)
+{
+}
+
+void
+surfenter(void *data, struct wl_surface *surface, struct wl_output *output)
+{
+ wl.vis++;
+ if (!(wl.state & WIN_VISIBLE))
+ wl.state |= WIN_VISIBLE;
+}
+
+void
+surfleave(void *data, struct wl_surface *surface, struct wl_output *output)
+{
+ if (--wl.vis == 0)
+ wl.state &= ~WIN_VISIBLE;
+}
+
+void
+framedone(void *data, struct wl_callback *callback, uint32_t msecs)
+{
+ wl_callback_destroy(callback);
+ wl.framecb = NULL;
+ if (needdraw && wl.state & WIN_VISIBLE) {
+ draw();
+ }
+}
+
+void
+kbdkeymap(void *data, struct wl_keyboard *keyboard, uint32_t format, int32_t fd,
+ uint32_t size)
+{
+ char *string;
+
+ if (format != WL_KEYBOARD_KEYMAP_FORMAT_XKB_V1) {
+ close(fd);
+ return;
+ }
+
+ string = mmap(NULL, size, PROT_READ, MAP_SHARED, fd, 0);
+
+ if (string == MAP_FAILED) {
+ close(fd);
+ return;
+ }
+
+ wl.xkb.keymap = xkb_keymap_new_from_string(wl.xkb.ctx, string,
+ XKB_KEYMAP_FORMAT_TEXT_V1, 0);
+ munmap(string, size);
+ close(fd);
+ wl.xkb.state = xkb_state_new(wl.xkb.keymap);
+
+ wl.xkb.ctrl = xkb_keymap_mod_get_index(wl.xkb.keymap, XKB_MOD_NAME_CTRL);
+ wl.xkb.alt = xkb_keymap_mod_get_index(wl.xkb.keymap, XKB_MOD_NAME_ALT);
+ wl.xkb.shift = xkb_keymap_mod_get_index(wl.xkb.keymap, XKB_MOD_NAME_SHIFT);
+ wl.xkb.logo = xkb_keymap_mod_get_index(wl.xkb.keymap, XKB_MOD_NAME_LOGO);
+
+ wl.xkb.mods = 0;
+}
+
+void
+kbdenter(void *data, struct wl_keyboard *keyboard, uint32_t serial,
+ struct wl_surface *surface, struct wl_array *keys)
+{
+ wl.state |= WIN_FOCUSED;
+ if (IS_SET(MODE_FOCUS))
+ ttywrite("\033[I", 3);
+ /* need to redraw the cursor */
+ needdraw = true;
+}
+
+void
+kbdleave(void *data, struct wl_keyboard *keyboard, uint32_t serial,
+ struct wl_surface *surface)
+{
+ /* selection offers are invalidated when we lose keyboard focus */
+ wl.seloffer = NULL;
+ wl.state &= ~WIN_FOCUSED;
+ if (IS_SET(MODE_FOCUS))
+ ttywrite("\033[O", 3);
+ /* need to redraw the cursor */
+ needdraw = true;
+ /* disable key repeat */
+ repeat.len = 0;
+}
+
+void
+kbdkey(void *data, struct wl_keyboard *keyboard, uint32_t serial, uint32_t time,
+ uint32_t key, uint32_t state)
+{
+ xkb_keysym_t ksym;
+ char buf[32], *str;
+ int len;
+ Rune c;
+ Shortcut *bp;
+
+ if (IS_SET(MODE_KBDLOCK))
+ return;
+
+ if (state == WL_KEYBOARD_KEY_STATE_RELEASED) {
+ if (repeat.key == key)
+ repeat.len = 0;
+ return;
+ }
+
+ ksym = xkb_state_key_get_one_sym(wl.xkb.state, key + 8);
+ len = xkb_keysym_to_utf8(ksym, buf, sizeof buf);
+ if (len > 0)
+ --len;
+
+ /* 1. shortcuts */
+ for (bp = shortcuts; bp < shortcuts + LEN(shortcuts); bp++) {
+ if (ksym == bp->keysym && match(bp->mod, wl.xkb.mods)) {
+ bp->func(&(bp->arg));
+ return;
+ }
+ }
+
+ /* 2. custom keys from config.h */
+ if ((str = kmap(ksym, wl.xkb.mods))) {
+ len = strlen(str);
+ goto send;
+ }
+
+ /* 3. composed string from input method */
+ if (len == 0)
+ return;
+ if (len == 1 && wl.xkb.mods & MOD_MASK_ALT) {
+ if (IS_SET(MODE_8BIT)) {
+ if (*buf < 0177) {
+ c = *buf | 0x80;
+ len = utf8encode(c, buf);
+ }
+ } else {
+ buf[1] = buf[0];
+ buf[0] = '\033';
+ len = 2;
+ }
+ }
+ /* convert character to control character */
+ else if (len == 1 && wl.xkb.mods & MOD_MASK_CTRL) {
+ if ((*buf >= '@' && *buf < '\177') || *buf == ' ')
+ *buf &= 0x1F;
+ else if (*buf == '2') *buf = '\000';
+ else if (*buf >= '3' && *buf <= '7')
+ *buf -= ('3' - '\033');
+ else if (*buf == '8') *buf = '\177';
+ else if (*buf == '/') *buf = '_' & 0x1F;
+ }
+
+ str = buf;
+
+send:
+ memcpy(repeat.str, str, len);
+ repeat.key = key;
+ repeat.len = len;
+ repeat.started = false;
+ clock_gettime(CLOCK_MONOTONIC, &repeat.last);
+ ttysend(str, len);
+}
+
+void
+kbdmodifiers(void *data, struct wl_keyboard *keyboard, uint32_t serial,
+ uint32_t dep, uint32_t lat, uint32_t lck, uint32_t group)
+{
+ xkb_mod_mask_t mod_mask;
+
+ xkb_state_update_mask(wl.xkb.state, dep, lat, lck, group, 0, 0);
+
+ mod_mask = xkb_state_serialize_mods(wl.xkb.state, XKB_STATE_MODS_EFFECTIVE);
+ wl.xkb.mods = 0;
+
+ if (mod_mask & (1 << wl.xkb.ctrl))
+ wl.xkb.mods |= MOD_MASK_CTRL;
+ if (mod_mask & (1 << wl.xkb.alt))
+ wl.xkb.mods |= MOD_MASK_ALT;
+ if (mod_mask & (1 << wl.xkb.shift))
+ wl.xkb.mods |= MOD_MASK_SHIFT;
+ if (mod_mask & (1 << wl.xkb.logo))
+ wl.xkb.mods |= MOD_MASK_LOGO;
+}
+
+void
+kbdrepeatinfo(void *data, struct wl_keyboard *keyboard, int32_t rate,
+ int32_t delay)
+{
+ keyrepeatdelay = delay;
+ keyrepeatinterval = 1000 / rate;
+}
+
+void
+ptrenter(void *data, struct wl_pointer *pointer, uint32_t serial,
+ struct wl_surface *surface, wl_fixed_t x, wl_fixed_t y)
+{
+ struct wl_cursor_image *img = cursor.cursor->images[0];
+ struct wl_buffer *buffer;
+
+ wl_pointer_set_cursor(pointer, serial, cursor.surface,
+ img->hotspot_x, img->hotspot_y);
+ buffer = wl_cursor_image_get_buffer(img);
+ wl_surface_attach(cursor.surface, buffer, 0, 0);
+ wl_surface_damage(cursor.surface, 0, 0, img->width, img->height);
+ wl_surface_commit(cursor.surface);
+}
+
+void
+ptrleave(void *data, struct wl_pointer *pointer, uint32_t serial,
+ struct wl_surface *surface)
+{
+}
+
+void
+ptrmotion(void *data, struct wl_pointer * pointer, uint32_t serial,
+ wl_fixed_t x, wl_fixed_t y)
+{
+ int oldey, oldex, oldsby, oldsey;
+
+ if (IS_SET(MODE_MOUSE)) {
+ wlmousereportmotion(x, y);
+ return;
+ }
+
+ wl.px = wl_fixed_to_int(x);
+ wl.py = wl_fixed_to_int(y);
+
+ if (!sel.mode)
+ return;
+
+ sel.mode = SEL_READY;
+ oldey = sel.oe.y;
+ oldex = sel.oe.x;
+ oldsby = sel.nb.y;
+ oldsey = sel.ne.y;
+ getbuttoninfo();
+
+ if (oldey != sel.oe.y || oldex != sel.oe.x)
+ tsetdirt(MIN(sel.nb.y, oldsby), MAX(sel.ne.y, oldsey));
+}
+
+void
+ptrbutton(void * data, struct wl_pointer * pointer, uint32_t serial,
+ uint32_t time, uint32_t button, uint32_t state)
+{
+ Mousekey *mk;
+
+ if (IS_SET(MODE_MOUSE) && !(wl.xkb.mods & forceselmod)) {
+ wlmousereportbutton(button, state);
+ return;
+ }
+
+ switch (state) {
+ case WL_POINTER_BUTTON_STATE_RELEASED:
+ if (button == BTN_MIDDLE) {
+ selpaste(NULL);
+ } else if (button == BTN_LEFT) {
+ if (sel.mode == SEL_READY) {
+ getbuttoninfo();
+ selcopy(serial);
+ } else
+ selclear();
+ sel.mode = SEL_IDLE;
+ tsetdirt(sel.nb.y, sel.ne.y);
+ }
+ break;
+
+ case WL_POINTER_BUTTON_STATE_PRESSED:
+ for (mk = mshortcuts; mk < mshortcuts + LEN(mshortcuts); mk++) {
+ if (button == mk->b && match(mk->mask, wl.xkb.mods)) {
+ ttysend(mk->s, strlen(mk->s));
+ return;
+ }
+ }
+
+ if (button == BTN_LEFT) {
+ /* Clear previous selection, logically and visually. */
+ selclear();
+ sel.mode = SEL_EMPTY;
+ sel.type = SEL_REGULAR;
+ sel.oe.x = sel.ob.x = x2col(wl.px);
+ sel.oe.y = sel.ob.y = y2row(wl.py);
+
+ /*
+ * If the user clicks below predefined timeouts
+ * specific snapping behaviour is exposed.
+ */
+ if (time - sel.tclick2 <= tripleclicktimeout) {
+ sel.snap = SNAP_LINE;
+ } else if (time - sel.tclick1 <= doubleclicktimeout) {
+ sel.snap = SNAP_WORD;
+ } else {
+ sel.snap = 0;
+ }
+ selnormalize();
+
+ if (sel.snap != 0)
+ sel.mode = SEL_READY;
+ tsetdirt(sel.nb.y, sel.ne.y);
+ sel.tclick2 = sel.tclick1;
+ sel.tclick1 = time;
+ }
+ break;
+ }
+}
+
+void
+ptraxis(void * data, struct wl_pointer * pointer, uint32_t time, uint32_t axis,
+ wl_fixed_t value)
+{
+ Axiskey *ak;
+ int dir = value > 0 ? +1 : -1;
+
+ if (IS_SET(MODE_MOUSE) && !(wl.xkb.mods & forceselmod)) {
+ wlmousereportaxis(axis, value);
+ return;
+ }
+
+ for (ak = ashortcuts; ak < ashortcuts + LEN(ashortcuts); ak++) {
+ if (axis == ak->axis && dir == ak->dir
+ && match(ak->mask, wl.xkb.mods)) {
+ ttysend(ak->s, strlen(ak->s));
+ return;
+ }
+ }
+}
+
+void
+xdgshellping(void *data, struct xdg_shell *shell, uint32_t serial)
+{
+ xdg_shell_pong(shell, serial);
+}
+
+void
+xdgsurfconfigure(void *data, struct xdg_surface *surf, int32_t w, int32_t h,
+ struct wl_array *states, uint32_t serial)
+{
+ xdg_surface_ack_configure(surf, serial);
+ if (w == wl.w && h == wl.h)
+ return;
+ wl.configured = true;
+ cresize(w, h);
+}
+
+void
+xdgsurfclose(void *data, struct xdg_surface *surf)
+{
+ /* Send SIGHUP to shell */
+ kill(pid, SIGHUP);
+ exit(0);
+}
+
+void
+datadevoffer(void *data, struct wl_data_device *datadev,
+ struct wl_data_offer *offer)
+{
+ wl_data_offer_add_listener(offer, &dataofferlistener, NULL);
+}
+
+void
+datadeventer(void *data, struct wl_data_device *datadev, uint32_t serial,
+ struct wl_surface *surf, wl_fixed_t x, wl_fixed_t y,
+ struct wl_data_offer *offer)
+{
+}
+
+void
+datadevleave(void *data, struct wl_data_device *datadev)
+{
+}
+
+void
+datadevmotion(void *data, struct wl_data_device *datadev, uint32_t time,
+ wl_fixed_t x, wl_fixed_t y)
+{
+}
+
+void
+datadevdrop(void *data, struct wl_data_device *datadev)
+{
+}
+
+void
+datadevselection(void *data, struct wl_data_device *datadev,
+ struct wl_data_offer *offer)
+{
+ if (offer && (uintptr_t) wl_data_offer_get_user_data(offer) == 1)
+ wl.seloffer = offer;
+ else
+ wl.seloffer = NULL;
+}
+
+void
+dataofferoffer(void *data, struct wl_data_offer *offer, const char *mimetype)
+{
+ /* mark the offer as usable if it supports plain text */
+ if (strncmp(mimetype, "text/plain", 10) == 0)
+ wl_data_offer_set_user_data(offer, (void *)(uintptr_t) 1);
+}
+
+void
+datasrctarget(void *data, struct wl_data_source *source, const char *mimetype)
+{
+}
+
+void
+datasrcsend(void *data, struct wl_data_source *source, const char *mimetype,
+ int32_t fd)
+{
+ char *buf = sel.primary;
+ int len = strlen(sel.primary);
+ ssize_t ret;
+ while ((ret = write(fd, buf, MIN(len, BUFSIZ))) > 0) {
+ len -= ret;
+ buf += ret;
+ }
+ close(fd);
+}
+
+void
+datasrccancelled(void *data, struct wl_data_source *source)
+{
+ if (sel.source == source) {
+ sel.source = NULL;
+ selclear();
+ }
+ wl_data_source_destroy(source);
+}
+
+void
+run(void)
+{
+ fd_set rfd;
+ int wlfd = wl_display_get_fd(wl.dpy), blinkset = 0;
+ struct timespec drawtimeout, *tv = NULL, now, last, lastblink;
+ ulong msecs;
+
+ ttynew();
+ /* Look for initial configure. */
+ wl_display_roundtrip(wl.dpy);
+ if (!wl.configured)
+ cresize(wl.w, wl.h);
+ draw();
+
+ clock_gettime(CLOCK_MONOTONIC, &last);
+ lastblink = last;
+
+ for (;;) {
+ FD_ZERO(&rfd);
+ FD_SET(cmdfd, &rfd);
+ FD_SET(wlfd, &rfd);
+
+ if (pselect(MAX(wlfd, cmdfd)+1, &rfd, NULL, NULL, tv, NULL) < 0) {
+ if (errno == EINTR)
+ continue;
+ die("select failed: %s\n", strerror(errno));
+ }
+
+ if (FD_ISSET(cmdfd, &rfd)) {
+ ttyread();
+ if (blinktimeout) {
+ blinkset = tattrset(ATTR_BLINK);
+ if (!blinkset)
+ MODBIT(term.mode, 0, MODE_BLINK);
+ }
+ }
+
+ if (FD_ISSET(wlfd, &rfd)) {
+ if (wl_display_dispatch(wl.dpy) == -1)
+ die("Connection error\n");
+ }
+
+ clock_gettime(CLOCK_MONOTONIC, &now);
+ msecs = -1;
+
+ if (blinkset && blinktimeout) {
+ if (TIMEDIFF(now, lastblink) >= blinktimeout) {
+ tsetdirtattr(ATTR_BLINK);
+ term.mode ^= MODE_BLINK;
+ lastblink = now;
+ } else {
+ msecs = MIN(msecs, blinktimeout - \
+ TIMEDIFF(now, lastblink));
+ }
+ }
+ if (repeat.len > 0) {
+ if (TIMEDIFF(now, repeat.last) >= \
+ (repeat.started ? keyrepeatinterval : \
+ keyrepeatdelay)) {
+ repeat.started = true;
+ repeat.last = now;
+ ttysend(repeat.str, repeat.len);
+ } else {
+ msecs = MIN(msecs, (repeat.started ? \
+ keyrepeatinterval : keyrepeatdelay) - \
+ TIMEDIFF(now, repeat.last));
+ }
+ }
+
+ if (needdraw) {
+ if (!wl.framecb) {
+ draw();
+ }
+ }
+
+ if (msecs == -1) {
+ tv = NULL;
+ } else {
+ drawtimeout.tv_nsec = 1E6 * msecs;
+ drawtimeout.tv_sec = 0;
+ tv = &drawtimeout;
+ }
+
+ wl_display_dispatch_pending(wl.dpy);
+ wl_display_flush(wl.dpy);
+ }
+}
+
+void
+usage(void)
+{
+ die("%s " VERSION " (c) 2010-2015 st engineers\n"
+ "usage: st [-a] [-v] [-c class] [-f font] [-g geometry] [-o file]\n"
+ " [-i] [-t title] [-T title] [-w windowid] [-e command ...]"
+ " [command ...]\n"
+ " st [-a] [-v] [-c class] [-f font] [-g geometry] [-o file]\n"
+ " [-i] [-t title] [-T title] [-w windowid] [-l line]"
+ " [stty_args ...]\n",
+ argv0);
+}
+
+int
+main(int argc, char *argv[])
+{
+ ARGBEGIN {
+ case 'a':
+ allowaltscreen = 0;
+ break;
+ case 'c':
+ opt_class = EARGF(usage());
+ break;
+ case 'e':
+ if (argc > 0)
+ --argc, ++argv;
+ goto run;
+ case 'f':
+ opt_font = EARGF(usage());
+ break;
+ case 'o':
+ opt_io = EARGF(usage());
+ break;
+ case 'l':
+ opt_line = EARGF(usage());
+ break;
+ case 't':
+ case 'T':
+ opt_title = EARGF(usage());
+ break;
+ case 'w':
+ opt_embed = EARGF(usage());
+ break;
+ case 'v':
+ default:
+ usage();
+ } ARGEND;
+
+run:
+ if (argc > 0) {
+ /* eat all remaining arguments */
+ opt_cmd = argv;
+ if (!opt_title && !opt_line)
+ opt_title = basename(xstrdup(argv[0]));
+ }
+ setlocale(LC_CTYPE, "");
+ tnew(80, 24);
+ wlinit();
+ selinit();
+ run();
+
+ return 0;
+}
+
diff --git a/st.info b/st.info
new file mode 100644
index 0000000..b70fefa
--- /dev/null
+++ b/st.info
@@ -0,0 +1,213 @@
+st| simpleterm,
+ acsc=+C\,D-A.B0E``aaffgghFiGjjkkllmmnnooppqqrrssttuuvvwwxxyyzz{{||}}~~,
+ am,
+ bce,
+ bel=^G,
+ blink=\E[5m,
+ bold=\E[1m,
+ cbt=\E[Z,
+ cvvis=\E[?25h,
+ civis=\E[?25l,
+ clear=\E[H\E[2J,
+ cnorm=\E[?12l\E[?25h,
+ colors#8,
+ cols#80,
+ cr=^M,
+ csr=\E[%i%p1%d;%p2%dr,
+ cub=\E[%p1%dD,
+ cub1=^H,
+ cud1=^J,
+ cud=\E[%p1%dB,
+ cuf1=\E[C,
+ cuf=\E[%p1%dC,
+ cup=\E[%i%p1%d;%p2%dH,
+ cuu1=\E[A,
+ cuu=\E[%p1%dA,
+ dch=\E[%p1%dP,
+ dch1=\E[P,
+ dl=\E[%p1%dM,
+ dl1=\E[M,
+ ech=\E[%p1%dX,
+ ed=\E[J,
+ el=\E[K,
+ el1=\E[1K,
+ enacs=\E)0,
+ flash=\E[?5h$<80/>\E[?5l,
+ fsl=^G,
+ home=\E[H,
+ hpa=\E[%i%p1%dG,
+ hs,
+ ht=^I,
+ hts=\EH,
+ ich=\E[%p1%d@,
+ il1=\E[L,
+ il=\E[%p1%dL,
+ ind=^J,
+ indn=\E[%p1%dS,
+ invis=\E[8m,
+ is2=\E[4l\E>\E[?1034l,
+ it#8,
+ kel=\E[1;2F,
+ ked=\E[1;5F,
+ ka1=\E[1~,
+ ka3=\E[5~,
+ kc1=\E[4~,
+ kc3=\E[6~,
+ kbs=\177,
+ kcbt=\E[Z,
+ kb2=\EOu,
+ kcub1=\EOD,
+ kcud1=\EOB,
+ kcuf1=\EOC,
+ kcuu1=\EOA,
+ kDC=\E[3;2~,
+ kent=\EOM,
+ kEND=\E[1;2F,
+ kIC=\E[2;2~,
+ kNXT=\E[6;2~,
+ kPRV=\E[5;2~,
+ kHOM=\E[1;2H,
+ kLFT=\E[1;2D,
+ kRIT=\E[1;2C,
+ kind=\E[1;2B,
+ kri=\E[1;2A,
+ kclr=\E[3;5~,
+ kdl1=\E[3;2~,
+ kdch1=\E[3~,
+ kich1=\E[2~,
+ kend=\E[4~,
+ kf1=\EOP,
+ kf2=\EOQ,
+ kf3=\EOR,
+ kf4=\EOS,
+ kf5=\E[15~,
+ kf6=\E[17~,
+ kf7=\E[18~,
+ kf8=\E[19~,
+ kf9=\E[20~,
+ kf10=\E[21~,
+ kf11=\E[23~,
+ kf12=\E[24~,
+ kf13=\E[1;2P,
+ kf14=\E[1;2Q,
+ kf15=\E[1;2R,
+ kf16=\E[1;2S,
+ kf17=\E[15;2~,
+ kf18=\E[17;2~,
+ kf19=\E[18;2~,
+ kf20=\E[19;2~,
+ kf21=\E[20;2~,
+ kf22=\E[21;2~,
+ kf23=\E[23;2~,
+ kf24=\E[24;2~,
+ kf25=\E[1;5P,
+ kf26=\E[1;5Q,
+ kf27=\E[1;5R,
+ kf28=\E[1;5S,
+ kf29=\E[15;5~,
+ kf30=\E[17;5~,
+ kf31=\E[18;5~,
+ kf32=\E[19;5~,
+ kf33=\E[20;5~,
+ kf34=\E[21;5~,
+ kf35=\E[23;5~,
+ kf36=\E[24;5~,
+ kf37=\E[1;6P,
+ kf38=\E[1;6Q,
+ kf39=\E[1;6R,
+ kf40=\E[1;6S,
+ kf41=\E[15;6~,
+ kf42=\E[17;6~,
+ kf43=\E[18;6~,
+ kf44=\E[19;6~,
+ kf45=\E[20;6~,
+ kf46=\E[21;6~,
+ kf47=\E[23;6~,
+ kf48=\E[24;6~,
+ kf49=\E[1;3P,
+ kf50=\E[1;3Q,
+ kf51=\E[1;3R,
+ kf52=\E[1;3S,
+ kf53=\E[15;3~,
+ kf54=\E[17;3~,
+ kf55=\E[18;3~,
+ kf56=\E[19;3~,
+ kf57=\E[20;3~,
+ kf58=\E[21;3~,
+ kf59=\E[23;3~,
+ kf60=\E[24;3~,
+ kf61=\E[1;4P,
+ kf62=\E[1;4Q,
+ kf63=\E[1;4R,
+ khome=\E[1~,
+ kil1=\E[2;5~,
+ krmir=\E[2;2~,
+ kich1=\E[2~,
+ knp=\E[6~,
+ kmous=\E[M,
+ kpp=\E[5~,
+ lines#24,
+ mir,
+ msgr,
+ ncv#3,
+ npc,
+ op=\E[39;49m,
+ pairs#64,
+ mc0=\E[i,
+ mc4=\E[4i,
+ mc5=\E[5i,
+ rc=\E8,
+ rev=\E[7m,
+ ri=\EM,
+ ritm=\E[23m,
+ rmacs=\E(B,
+ rmcup=\E[?1049l,
+ rmir=\E[4l,
+ rmkx=\E[?1l\E>,
+ rmso=\E[27m,
+ rmul=\E[24m,
+ rs1=\Ec,
+ rs2=\E[4l\E>\E[?1034l,
+ sc=\E7,
+ setab=\E[4%p1%dm,
+ setaf=\E[3%p1%dm,
+ setb=\E[4%?%p1%{1}%=%t4%e%p1%{3}%=%t6%e%p1%{4}%=%t1%e%p1%{6}%=%t3%e%p1%d%;m,
+ setf=\E[3%?%p1%{1}%=%t4%e%p1%{3}%=%t6%e%p1%{4}%=%t1%e%p1%{6}%=%t3%e%p1%d%;m,
+ sgr0=\E[0m,
+ sgr=%?%p9%t\E(0%e\E(B%;\E[0%?%p6%t;1%;%?%p2%t;4%;%?%p1%p3%|%t;7%;%?%p4%t;5%;%?%p7%t;8%;m,
+ sitm=\E[3m,
+ smacs=\E(0,
+ smcup=\E[?1049h,
+ smir=\E[4h,
+ smkx=\E[?1h\E=,
+ smso=\E[7m,
+ smul=\E[4m,
+ tbc=\E[3g,
+ tsl=\E]0;,
+ xenl,
+ vpa=\E[%i%p1%dd,
+
+
+st-256color| simpleterm with 256 colors,
+ use=st,
+ colors#256,
+ pairs#32767,
+# Nicked from xterm-256color
+ setab=\E[%?%p1%{8}%<%t4%p1%d%e%p1%{16}%<%t10%p1%{8}%-%d%e48;5;%p1%d%;m,
+ setaf=\E[%?%p1%{8}%<%t3%p1%d%e%p1%{16}%<%t9%p1%{8}%-%d%e38;5;%p1%d%;m,
+
+st-meta| simpleterm with meta key,
+ use=st,
+ km,
+ rmm=\E[?1034l,
+ smm=\E[?1034h,
+ rs2=\E[4l\E>\E[?1034h,
+ is2=\E[4l\E>\E[?1034h,
+
+st-meta-256color| simpleterm with meta key and 256 colors,
+ use=st-256color,
+ km,
+ rmm=\E[?1034l,
+ smm=\E[?1034h,
+ rs2=\E[4l\E>\E[?1034h,
+ is2=\E[4l\E>\E[?1034h,