Merge remote-tracking branch 'upstream/master'

XCreateIC ICValues default XNFocusWindow to XNClientWindow if not
specified, it can be omitted since it is the same.

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

> Focus Window
>
> The XNFocusWindow argument specifies the focus window. The primary
> purpose of the XNFocusWindow is to identify the window that will receive
> the key event when input is composed.
>
> When this XIC value is left unspecified, the input method will use the
> client window as the default focus window.

FAQ

@@ -1,6 +1,6 @@
 ## Why does st not handle utmp entries?
 
-Use the excellent tool of [utmp](http://git.suckless.org/utmp/) for this task.
+Use the excellent tool of [utmp](https://git.suckless.org/utmp/) for this task.
 
 ## Some _random program_ complains that st is unknown/not recognised/unsupported/whatever!
 
@@ -15,13 +15,6 @@ you can manually run `tic -sx st.info`.
 * Some programs don’t complain about the lacking st description and default to
   another terminal. In that case see the question about terminfo.
 
-## I get some weird glitches/visual bug on _random program_!
-
-Try launching it with a different TERM: $ TERM=xterm myapp. toe(1) will give
-you a list of available terminals, but you’ll most likely switch between xterm,
-st or st-256color. The default value for TERM can be changed in config.h
-(TNAME).
-
 ## How do I scroll back up?
 
 Using a terminal multiplexer.
@@ -104,7 +97,7 @@ St is emulating the Linux way of handling backspace being delete and delete bein
 backspace.
 
 This is an issue that was discussed in suckless mailing list
-<http://lists.suckless.org/dev/1404/20697.html>. Here is why some old grumpy
+<https://lists.suckless.org/dev/1404/20697.html>. Here is why some old grumpy
 terminal users wants its backspace to be how he feels it:
 
 	Well, I am going to comment why I want to change the behaviour
@@ -163,5 +156,40 @@ terminal users wants its backspace to be how he feels it:
 
 Apply [1].
 
-[1] http://st.suckless.org/patches/delkey
+[1] https://st.suckless.org/patches/delkey
 
+## Why do images not work in st (in programs such as w3m)?
+
+This is a terrible hack that overdraws an image on top of the terminal emulator
+window. It also relies on a very specific way the terminal draws it's contents.
+
+A more proper (but limited way) would be using sixels. Which st doesn't
+support.
+
+## BadLength X error in Xft when trying to render emoji
+
+Xft makes st crash when rendering color emojis with the following error:
+
+"X Error of failed request:  BadLength (poly request too large or internal Xlib length error)"
+  Major opcode of failed request:  139 (RENDER)
+  Minor opcode of failed request:  20 (RenderAddGlyphs)
+  Serial number of failed request: 1595
+  Current serial number in output stream:  1818"
+
+This is a known bug in Xft (not st) which happens on some platforms and
+combination of particular fonts and fontconfig settings.
+
+See also:
+https://gitlab.freedesktop.org/xorg/lib/libxft/issues/6
+https://bugs.freedesktop.org/show_bug.cgi?id=107534
+https://bugzilla.redhat.com/show_bug.cgi?id=1498269
+
+The solution is to remove color emoji fonts or disable this in the fontconfig
+XML configuration.  As an ugly workaround (which may work only on newer
+fontconfig versions (FC_COLOR)), the following code can be used to mask color
+fonts:
+
+	FcPatternAddBool(fcpattern, FC_COLOR, FcFalse);
+
+Please don't bother reporting this bug to st, but notify the upstream Xft
+developers about fixing this bug.

config.def.h

@@ -5,8 +5,8 @@
  *
  * font: see http://freedesktop.org/software/fontconfig/fontconfig-user.html
  */
-static char *font = "Liberation Mono:pixelsize=12:antialias=true:autohint=true";
-static int borderpx = 2;
+static char *font = "Iosevka Term:pixelsize=14:antialias=true:autohint=true";
+static int borderpx = 3;
 
 /*
  * What program is execed by st depends of these precedence rules:
@@ -30,9 +30,9 @@ static float chscale = 1.0;
 /*
  * word delimiter string
  *
- * More advanced example: " `'\"()[]{}"
+ * More advanced example: L" `'\"()[]{}"
  */
-char *worddelimiters = " ";
+wchar_t *worddelimiters = L" ";
 
 /* selection timeouts (in milliseconds) */
 static unsigned int doubleclicktimeout = 300;
@@ -80,7 +80,7 @@ char *termname = "st-256color";
  *
  *	stty tabs
  */
-unsigned int tabspaces = 8;
+unsigned int tabspaces = 4;
 
 /* Terminal colors (16 first used in escape sequence) */
 static const char *colorname[] = {
@@ -163,14 +163,22 @@ static unsigned int mousebg = 0;
  */
 static unsigned int defaultattr = 11;
 
+/*
+ * Force mouse select/shortcuts while mask is active (when MODE_MOUSE is set).
+ * Note that if you want to use ShiftMask with selmasks, set this to an other
+ * modifier, set to 0 to not use it.
+ */
+static uint forcemousemod = ShiftMask;
+
 /*
  * Internal mouse shortcuts.
  * Beware that overloading Button1 will disable the selection.
  */
 static MouseShortcut mshortcuts[] = {
-	/* button               mask            string */
-	{ Button4,              XK_ANY_MOD,     "\031" },
-	{ Button5,              XK_ANY_MOD,     "\005" },
+	/* mask                 button   function        argument       release */
+	{ XK_ANY_MOD,           Button2, selpaste,       {.i = 0},      1 },
+	{ XK_ANY_MOD,           Button4, ttysend,        {.s = "\031"} },
+	{ XK_ANY_MOD,           Button5, ttysend,        {.s = "\005"} },
 };
 
 /* Internal keyboard shortcuts. */
@@ -183,9 +191,9 @@ static Shortcut shortcuts[] = {
 	{ ControlMask,          XK_Print,       toggleprinter,  {.i =  0} },
 	{ ShiftMask,            XK_Print,       printscreen,    {.i =  0} },
 	{ XK_ANY_MOD,           XK_Print,       printsel,       {.i =  0} },
-	{ TERMMOD,              XK_Prior,       zoom,           {.f = +1} },
-	{ TERMMOD,              XK_Next,        zoom,           {.f = -1} },
-	{ TERMMOD,              XK_Home,        zoomreset,      {.f =  0} },
+	{ TERMMOD,              XK_plus,        zoom,           {.f = +1} },
+	{ TERMMOD,              XK_minus,       zoom,           {.f = -1} },
+	{ TERMMOD,              XK_equal,       zoomreset,      {.f =  0} },
 	{ TERMMOD,              XK_C,           clipcopy,       {.i =  0} },
 	{ TERMMOD,              XK_V,           clippaste,      {.i =  0} },
 	{ TERMMOD,              XK_Y,           selpaste,       {.i =  0} },
@@ -209,10 +217,6 @@ static Shortcut shortcuts[] = {
  * * 0: no value
  * * > 0: cursor application mode enabled
  * * < 0: cursor application mode disabled
- * crlf value
- * * 0: no value
- * * > 0: crlf mode is enabled
- * * < 0: crlf mode is disabled
  *
  * Be careful with the order of the definitions because st searches in
  * this table sequentially, so any XK_ANY_MOD must be in the last
@@ -231,13 +235,6 @@ static KeySym mappedkeys[] = { -1 };
  */
 static uint ignoremod = Mod2Mask|XK_SWITCH_MOD;
 
-/*
- * Override mouse-select while mask is active (when MODE_MOUSE is set).
- * Note that if you want to use ShiftMask with selmasks, set this to an other
- * modifier, set to 0 to not use it.
- */
-static uint forceselmod = ShiftMask;
-
 /*
  * This is the huge key array which defines all compatibility to the Linux
  * world. Please decide about changes wisely.

st.c

@@ -41,7 +41,7 @@
 #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 ISDELIM(u)		(u && wcschr(worddelimiters, u))
 
 enum term_mode {
 	MODE_WRAP        = 1 << 0,
@@ -135,7 +135,7 @@ typedef struct {
 /* ESC '[' [[ [<priv>] <arg> [;]] <mode> [<mode>]] */
 typedef struct {
 	char buf[ESC_BUF_SIZ]; /* raw string */
-	int len;               /* raw string length */
+	size_t len;            /* raw string length */
 	char priv;
 	int arg[ESC_ARG_SIZ];
 	int narg;              /* nb of args */
@@ -146,8 +146,9 @@ typedef struct {
 /* ESC type [[ [<priv>] <arg> [;]] <mode>] ESC '\' */
 typedef struct {
 	char type;             /* ESC type ... */
-	char buf[STR_BUF_SIZ]; /* raw string */
-	int len;               /* raw string length */
+	char *buf;             /* allocated raw string */
+	size_t siz;            /* allocation size */
+	size_t len;            /* raw string length */
 	char *args[STR_ARG_SIZ];
 	int narg;              /* nb of args */
 } STREscape;
@@ -210,7 +211,6 @@ static void selsnap(int *, int *, int);
 static size_t utf8decode(const char *, Rune *, size_t);
 static Rune utf8decodebyte(char, size_t *);
 static char utf8encodebyte(Rune, size_t);
-static char *utf8strchr(char *, Rune);
 static size_t utf8validate(Rune *, size_t);
 
 static char *base64dec(const char *);
@@ -337,23 +337,6 @@ utf8encodebyte(Rune u, size_t i)
 	return utfbyte[i] | (u & ~utfmask[i]);
 }
 
-char *
-utf8strchr(char *s, Rune u)
-{
-	Rune r;
-	size_t i, j, len;
-
-	len = strlen(s);
-	for (i = 0, j = 0; i < len; i += j) {
-		if (!(j = utf8decode(&s[i], &r, len - i)))
-			break;
-		if (r == u)
-			return &(s[i]);
-	}
-
-	return NULL;
-}
-
 size_t
 utf8validate(Rune *u, size_t i)
 {
@@ -384,7 +367,7 @@ char
 base64dec_getc(const char **src)
 {
 	while (**src && !isprint(**src)) (*src)++;
-	return *((*src)++);
+	return **src ? *((*src)++) : '=';  /* emulate padding if string ends */
 }
 
 char *
@@ -402,6 +385,10 @@ base64dec(const char *src)
 		int c = base64_digits[(unsigned char) base64dec_getc(&src)];
 		int d = base64_digits[(unsigned char) base64dec_getc(&src)];
 
+		/* invalid input. 'a' can be -1, e.g. if src is "\n" (c-str) */
+		if (a == -1 || b == -1)
+			break;
+
 		*dst++ = (a << 2) | ((b & 0x30) >> 4);
 		if (c == -1)
 			break;
@@ -476,7 +463,7 @@ selextend(int col, int row, int type, int done)
 	selnormalize();
 	sel.type = type;
 
-	if (oldey != sel.oe.y || oldex != sel.oe.x || oldtype != sel.type)
+	if (oldey != sel.oe.y || oldex != sel.oe.x || oldtype != sel.type || sel.mode == SEL_EMPTY)
 		tsetdirt(MIN(sel.nb.y, oldsby), MAX(sel.ne.y, oldsey));
 
 	sel.mode = done ? SEL_IDLE : SEL_READY;
@@ -1575,6 +1562,7 @@ tsetmode(int priv, int set, int *args, int narg)
 			case 1015: /* urxvt mangled mouse mode; incompatible
 				      and can be mistaken for other control
 				      codes. */
+				break;
 			default:
 				fprintf(stderr,
 					"erresc: unknown private set/reset mode %d\n",
@@ -1816,7 +1804,7 @@ csihandle(void)
 void
 csidump(void)
 {
-	int i;
+	size_t i;
 	uint c;
 
 	fprintf(stderr, "ESC[");
@@ -1846,7 +1834,7 @@ csireset(void)
 void
 strhandle(void)
 {
-	char *p = NULL;
+	char *p = NULL, *dec;
 	int j, narg, par;
 
 	term.esc &= ~(ESC_STR_END|ESC_STR);
@@ -1864,8 +1852,6 @@ strhandle(void)
 			return;
 		case 52:
 			if (narg > 2) {
-				char *dec;
-
 				dec = base64dec(strescseq.args[2]);
 				if (dec) {
 					xsetsel(dec);
@@ -1883,7 +1869,10 @@ strhandle(void)
 		case 104: /* color reset, here p = NULL */
 			j = (narg > 1) ? atoi(strescseq.args[1]) : -1;
 			if (xsetcolorname(j, p)) {
-				fprintf(stderr, "erresc: invalid color %s\n", p);
+				if (par == 104 && narg <= 1)
+					return; /* color reset without parameter */
+				fprintf(stderr, "erresc: invalid color j=%d, p=%s\n",
+				        j, p ? p : "(null)");
 			} else {
 				/*
 				 * TODO if defaultbg color is changed, borders
@@ -1933,7 +1922,7 @@ strparse(void)
 void
 strdump(void)
 {
-	int i;
+	size_t i;
 	uint c;
 
 	fprintf(stderr, "ESC%c", strescseq.type);
@@ -1960,7 +1949,10 @@ strdump(void)
 void
 strreset(void)
 {
-	memset(&strescseq, 0, sizeof(strescseq));
+	strescseq = (STREscape){
+		.buf = xrealloc(strescseq.buf, STR_BUF_SIZ),
+		.siz = STR_BUF_SIZ,
+	};
 }
 
 void
@@ -2335,7 +2327,6 @@ tputc(Rune u)
 			goto check_control_code;
 		}
 
-
 		if (IS_SET(MODE_SIXEL)) {
 			/* TODO: implement sixel mode */
 			return;
@@ -2343,7 +2334,7 @@ tputc(Rune u)
 		if (term.esc&ESC_DCS && strescseq.len == 0 && u == 'q')
 			term.mode |= MODE_SIXEL;
 
-		if (strescseq.len+len >= sizeof(strescseq.buf)-1) {
+		if (strescseq.len+len >= strescseq.siz) {
 			/*
 			 * Here is a bug in terminals. If the user never sends
 			 * some code to stop the str or esc command, then st
@@ -2357,7 +2348,10 @@ tputc(Rune u)
 			 * term.esc = 0;
 			 * strhandle();
 			 */
-			return;
+			if (strescseq.siz > (SIZE_MAX - UTF_SIZ) / 2)
+				return;
+			strescseq.siz *= 2;
+			strescseq.buf = xrealloc(strescseq.buf, strescseq.siz);
 		}
 
 		memmove(&strescseq.buf[strescseq.len], c, len);

st.h

@@ -74,6 +74,7 @@ typedef union {
 	uint ui;
 	float f;
 	const void *v;
+	const char *s;
 } Arg;
 
 void die(const char *, ...);
@@ -114,7 +115,7 @@ char *xstrdup(char *);
 extern char *utmp;
 extern char *stty_args;
 extern char *vtiden;
-extern char *worddelimiters;
+extern wchar_t *worddelimiters;
 extern int allowaltscreen;
 extern char *termname;
 extern int usealtcolors;

st.info

@@ -189,10 +189,10 @@ st| simpleterm,
 	rmxx=\E[29m,
 	smxx=\E[9m,
 # tmux extensions, see TERMINFO EXTENSIONS in tmux(1)
-	Se,
-	Ss,
 	Tc,
 	Ms=\E]52;%p1%s;%p2%s\007,
+	Se=\E[2 q,
+	Ss=\E[%p1%d q,
 
 st-256color| simpleterm with 256 colors,
 	use=st,

x.c

@@ -29,9 +29,11 @@ typedef struct {
 } Shortcut;
 
 typedef struct {
-	uint b;
-	uint mask;
-	char *s;
+	uint mod;
+	uint button;
+	void (*func)(const Arg *);
+	const Arg arg;
+	uint  release;
 } MouseShortcut;
 
 typedef struct {
@@ -57,6 +59,7 @@ static void swapcolors(const Arg *);
 static void zoom(const Arg *);
 static void zoomabs(const Arg *);
 static void zoomreset(const Arg *);
+static void ttysend(const Arg *);
 
 /* config.h for applying patches and the configuration. */
 #include "config.h"
@@ -93,8 +96,12 @@ typedef struct {
 	Drawable buf;
 	GlyphFontSpec *specbuf; /* font spec buffer used for rendering */
 	Atom xembed, wmdeletewin, netwmname, netwmpid;
-	XIM xim;
-	XIC xic;
+	struct {
+		XIM xim;
+		XIC xic;
+		XPoint spot;
+		XVaNestedList spotlist;
+	} ime;
 	Draw draw;
 	Visual *vis;
 	XSetWindowAttributes attrs;
@@ -141,9 +148,10 @@ static void xdrawglyphfontspecs(const XftGlyphFontSpec *, Glyph, int, int, int);
 static void xdrawglyph(Glyph, int, int);
 static void xclear(int, int, int, int);
 static int xgeommasktogravity(int);
-static void ximopen(Display *);
+static int ximopen(Display *);
 static void ximinstantiate(Display *, XPointer, XPointer);
 static void ximdestroy(XIM, XPointer, XPointer);
+static int xicdestroy(XIC, XPointer, XPointer);
 static void xinit(int, int);
 static void cresize(int, int);
 static void xresize(int, int);
@@ -165,6 +173,7 @@ static void kpress(XEvent *);
 static void cmessage(XEvent *);
 static void resize(XEvent *);
 static void focus(XEvent *);
+static int mouseaction(XEvent *, uint);
 static void brelease(XEvent *);
 static void bpress(XEvent *);
 static void bmotion(XEvent *);
@@ -228,8 +237,9 @@ typedef struct {
 } Fontcache;
 
 /* Fontcache is an array now. A new font will be appended to the array. */
-static Fontcache frc[16];
+static Fontcache *frc = NULL;
 static int frclen = 0;
+static int frccap = 0;
 static char *usedfont = NULL;
 static double usedfontsize = 0;
 static double defaultfontsize = 0;
@@ -323,6 +333,12 @@ zoomreset(const Arg *arg)
 	}
 }
 
+void
+ttysend(const Arg *arg)
+{
+	ttywrite(arg->s, strlen(arg->s), 1);
+}
+
 int
 evcol(XEvent *e)
 {
@@ -343,7 +359,7 @@ void
 mousesel(XEvent *e, int done)
 {
 	int type, seltype = SEL_REGULAR;
-	uint state = e->xbutton.state & ~(Button1Mask | forceselmod);
+	uint state = e->xbutton.state & ~(Button1Mask | forcemousemod);
 
 	for (type = 1; type < LEN(selmasks); ++type) {
 		if (match(selmasks[type], state)) {
@@ -419,25 +435,37 @@ mousereport(XEvent *e)
 	ttywrite(buf, len, 0);
 }
 
+int
+mouseaction(XEvent *e, uint release)
+{
+	MouseShortcut *ms;
+
+	for (ms = mshortcuts; ms < mshortcuts + LEN(mshortcuts); ms++) {
+		if (ms->release == release &&
+		    ms->button == e->xbutton.button &&
+		    (match(ms->mod, e->xbutton.state) ||  /* exact or forced */
+		     match(ms->mod, e->xbutton.state & ~forcemousemod))) {
+			ms->func(&(ms->arg));
+			return 1;
+		}
+	}
+
+	return 0;
+}
+
 void
 bpress(XEvent *e)
 {
 	struct timespec now;
-	MouseShortcut *ms;
 	int snap;
 
-	if (IS_SET(MODE_MOUSE) && !(e->xbutton.state & forceselmod)) {
+	if (IS_SET(MODE_MOUSE) && !(e->xbutton.state & forcemousemod)) {
 		mousereport(e);
 		return;
 	}
 
-	for (ms = mshortcuts; ms < mshortcuts + LEN(mshortcuts); ms++) {
-		if (e->xbutton.button == ms->b
-				&& match(ms->mask, e->xbutton.state)) {
-			ttywrite(ms->s, strlen(ms->s), 1);
-			return;
-		}
-	}
+	if (mouseaction(e, 0))
+		return;
 
 	if (e->xbutton.button == Button1) {
 		/*
@@ -653,21 +681,21 @@ xsetsel(char *str)
 void
 brelease(XEvent *e)
 {
-	if (IS_SET(MODE_MOUSE) && !(e->xbutton.state & forceselmod)) {
+	if (IS_SET(MODE_MOUSE) && !(e->xbutton.state & forcemousemod)) {
 		mousereport(e);
 		return;
 	}
 
-	if (e->xbutton.button == Button2)
-		selpaste(NULL);
-	else if (e->xbutton.button == Button1)
+	if (mouseaction(e, 1))
+		return;
+	if (e->xbutton.button == Button1)
 		mousesel(e, 1);
 }
 
 void
 bmotion(XEvent *e)
 {
-	if (IS_SET(MODE_MOUSE) && !(e->xbutton.state & forceselmod)) {
+	if (IS_SET(MODE_MOUSE) && !(e->xbutton.state & forcemousemod)) {
 		mousereport(e);
 		return;
 	}
@@ -785,7 +813,6 @@ xsetcolorname(int x, const char *name)
 	if (!BETWEEN(x, 0, dc.collen))
 		return 1;
 
-
 	if (!xloadcolor(x, name, &ncolor))
 		return 1;
 
@@ -1022,41 +1049,58 @@ xunloadfonts(void)
 	xunloadfont(&dc.ibfont);
 }
 
-void
+int
 ximopen(Display *dpy)
 {
-	XIMCallback destroy = { .client_data = NULL, .callback = ximdestroy };
+	XIMCallback imdestroy = { .client_data = NULL, .callback = ximdestroy };
+	XICCallback icdestroy = { .client_data = NULL, .callback = xicdestroy };
 
-	if ((xw.xim = XOpenIM(xw.dpy, NULL, NULL, NULL)) == NULL) {
-		XSetLocaleModifiers("@im=local");
-		if ((xw.xim = XOpenIM(xw.dpy, NULL, NULL, NULL)) == NULL) {
-			XSetLocaleModifiers("@im=");
-			if ((xw.xim = XOpenIM(xw.dpy, NULL, NULL, NULL)) == NULL)
-				die("XOpenIM failed. Could not open input device.\n");
-		}
+	xw.ime.xim = XOpenIM(xw.dpy, NULL, NULL, NULL);
+	if (xw.ime.xim == NULL)
+		return 0;
+
+	if (XSetIMValues(xw.ime.xim, XNDestroyCallback, &imdestroy, NULL))
+		fprintf(stderr, "XSetIMValues: "
+		                "Could not set XNDestroyCallback.\n");
+
+	xw.ime.spotlist = XVaCreateNestedList(0, XNSpotLocation, &xw.ime.spot,
+	                                      NULL);
+
+	if (xw.ime.xic == NULL) {
+		xw.ime.xic = XCreateIC(xw.ime.xim, XNInputStyle,
+		                       XIMPreeditNothing | XIMStatusNothing,
+		                       XNClientWindow, xw.win,
+		                       XNDestroyCallback, &icdestroy,
+		                       NULL);
 	}
-	if (XSetIMValues(xw.xim, XNDestroyCallback, &destroy, NULL) != NULL)
-		die("XSetIMValues failed. Could not set input method value.\n");
-	xw.xic = XCreateIC(xw.xim, XNInputStyle, XIMPreeditNothing | XIMStatusNothing,
-				XNClientWindow, xw.win, XNFocusWindow, xw.win, NULL);
-	if (xw.xic == NULL)
-		die("XCreateIC failed. Could not obtain input method.\n");
+	if (xw.ime.xic == NULL)
+		fprintf(stderr, "XCreateIC: Could not create input context.\n");
+
+	return 1;
 }
 
 void
 ximinstantiate(Display *dpy, XPointer client, XPointer call)
 {
-	ximopen(dpy);
-	XUnregisterIMInstantiateCallback(xw.dpy, NULL, NULL, NULL,
-					ximinstantiate, NULL);
+	if (ximopen(dpy))
+		XUnregisterIMInstantiateCallback(xw.dpy, NULL, NULL, NULL,
+		                                 ximinstantiate, NULL);
 }
 
 void
 ximdestroy(XIM xim, XPointer client, XPointer call)
 {
-	xw.xim = NULL;
+	xw.ime.xim = NULL;
 	XRegisterIMInstantiateCallback(xw.dpy, NULL, NULL, NULL,
-					ximinstantiate, NULL);
+	                               ximinstantiate, NULL);
+	XFree(xw.ime.spotlist);
+}
+
+int
+xicdestroy(XIC xim, XPointer client, XPointer call)
+{
+	xw.ime.xic = NULL;
+	return 1;
 }
 
 void
@@ -1124,7 +1168,10 @@ xinit(int cols, int rows)
 	xw.draw = XftDrawCreate(xw.dpy, xw.buf, xw.vis, xw.cmap);
 
 	/* input methods */
-	ximopen(xw.dpy);
+	if (!ximopen(xw.dpy)) {
+		XRegisterIMInstantiateCallback(xw.dpy, NULL, NULL, NULL,
+	                                       ximinstantiate, NULL);
+	}
 
 	/* white cursor, black outline */
 	cursor = XCreateFontCursor(xw.dpy, mouseshape);
@@ -1155,8 +1202,8 @@ xinit(int cols, int rows)
 
 	win.mode = MODE_NUMLOCK;
 	resettitle();
-	XMapWindow(xw.dpy, xw.win);
 	xhints();
+	XMapWindow(xw.dpy, xw.win);
 	XSync(xw.dpy, False);
 
 	clock_gettime(CLOCK_MONOTONIC, &xsel.tclick1);
@@ -1266,13 +1313,10 @@ xmakeglyphfontspecs(XftGlyphFontSpec *specs, const Glyph *glyphs, int len, int x
 			fontpattern = FcFontSetMatch(0, fcsets, 1,
 					fcpattern, &fcres);
 
-			/*
-			 * Overwrite or create the new cache entry.
-			 */
-			if (frclen >= LEN(frc)) {
-				frclen = LEN(frc) - 1;
-				XftFontClose(xw.dpy, frc[frclen].font);
-				frc[frclen].unicodep = 0;
+			/* Allocate memory for the new cache entry. */
+			if (frclen >= frccap) {
+				frccap += 16;
+				frc = xrealloc(frc, frccap * sizeof(Fontcache));
 			}
 
 			frc[frclen].font = XftFontOpenPattern(xw.dpy,
@@ -1601,11 +1645,13 @@ xfinishdraw(void)
 void
 xximspot(int x, int y)
 {
-	XPoint spot = { borderpx + x * win.cw, borderpx + (y + 1) * win.ch };
-	XVaNestedList attr = XVaCreateNestedList(0, XNSpotLocation, &spot, NULL);
+	if (xw.ime.xic == NULL)
+		return;
 
-	XSetICValues(xw.xic, XNPreeditAttributes, attr, NULL);
-	XFree(attr);
+	xw.ime.spot.x = borderpx + x * win.cw;
+	xw.ime.spot.y = borderpx + (y + 1) * win.ch;
+
+	XSetICValues(xw.ime.xic, XNPreeditAttributes, xw.ime.spotlist, NULL);
 }
 
 void
@@ -1682,13 +1728,15 @@ focus(XEvent *ev)
 		return;
 
 	if (ev->type == FocusIn) {
-		XSetICFocus(xw.xic);
+		if (xw.ime.xic)
+			XSetICFocus(xw.ime.xic);
 		win.mode |= MODE_FOCUSED;
 		xseturgency(0);
 		if (IS_SET(MODE_FOCUS))
 			ttywrite("\033[I", 3, 0);
 	} else {
-		XUnsetICFocus(xw.xic);
+		if (xw.ime.xic)
+			XUnsetICFocus(xw.ime.xic);
 		win.mode &= ~MODE_FOCUSED;
 		if (IS_SET(MODE_FOCUS))
 			ttywrite("\033[O", 3, 0);
@@ -1743,7 +1791,7 @@ kpress(XEvent *ev)
 {
 	XKeyEvent *e = &ev->xkey;
 	KeySym ksym;
-	char buf[32], *customkey;
+	char buf[64], *customkey;
 	int len;
 	Rune c;
 	Status status;
@@ -1752,7 +1800,10 @@ kpress(XEvent *ev)
 	if (IS_SET(MODE_KBDLOCK))
 		return;
 
-	len = XmbLookupString(xw.xic, e, buf, sizeof buf, &ksym, &status);
+	if (xw.ime.xic)
+		len = XmbLookupString(xw.ime.xic, e, buf, sizeof buf, &ksym, &status);
+	else
+		len = XLookupString(e, buf, sizeof buf, &ksym, NULL);
 	/* 1. shortcuts */
 	for (bp = shortcuts; bp < shortcuts + LEN(shortcuts); bp++) {
 		if (ksym == bp->keysym && match(bp->mod, e->state)) {
@@ -1785,7 +1836,6 @@ kpress(XEvent *ev)
 	ttywrite(buf, len, 1);
 }
 
-
 void
 cmessage(XEvent *e)
 {