new branch

Patch by Mikhail Kot <to@myrrc.dev>
With some modifications to behave more like xterm (see note below).

Example:

	printf '\033[48;2;255:0:0mtest\n'

https://invisible-island.net/xterm/ctlseqs/ctlseqs.html

Some notes:

"CSI Pm m  Character Attributes (SGR).
[...]
o   xterm allows either colons (standard) or semicolons
(legacy) to separate the subparameters (but after the
first colon, colons must be used).

.gitignore

@@ -0,0 +1,4 @@
+st 
+*.o
+*.orig
+*.rej

Makefile

@@ -4,7 +4,7 @@
 
 include config.mk
 
-SRC = st.c x.c
+SRC = st.c x.c boxdraw.c
 OBJ = $(SRC:.c=.o)
 
 all: st
@@ -17,6 +17,7 @@ config.h:
 
 st.o: config.h st.h win.h
 x.o: arg.h config.h st.h win.h
+boxdraw.o: config.h st.h boxdraw_data.h
 
 $(OBJ): config.h config.mk
 

boxdraw.c

@@ -0,0 +1,194 @@
+/*
+ * Copyright 2018 Avi Halachmi (:avih) avihpit@yahoo.com https://github.com/avih
+ * MIT/X Consortium License
+ */
+
+#include <X11/Xft/Xft.h>
+#include "st.h"
+#include "boxdraw_data.h"
+
+/* Rounded non-negative integers division of n / d  */
+#define DIV(n, d) (((n) + (d) / 2) / (d))
+
+static Display *xdpy;
+static Colormap xcmap;
+static XftDraw *xd;
+static Visual *xvis;
+
+static void drawbox(int, int, int, int, XftColor *, XftColor *, ushort);
+static void drawboxlines(int, int, int, int, XftColor *, ushort);
+
+/* public API */
+
+void
+boxdraw_xinit(Display *dpy, Colormap cmap, XftDraw *draw, Visual *vis)
+{
+	xdpy = dpy; xcmap = cmap; xd = draw, xvis = vis;
+}
+
+int
+isboxdraw(Rune u)
+{
+	Rune block = u & ~0xff;
+	return (boxdraw && block == 0x2500 && boxdata[(uint8_t)u]) ||
+	       (boxdraw_braille && block == 0x2800);
+}
+
+/* the "index" is actually the entire shape data encoded as ushort */
+ushort
+boxdrawindex(const Glyph *g)
+{
+	if (boxdraw_braille && (g->u & ~0xff) == 0x2800)
+		return BRL | (uint8_t)g->u;
+	if (boxdraw_bold && (g->mode & ATTR_BOLD))
+		return BDB | boxdata[(uint8_t)g->u];
+	return boxdata[(uint8_t)g->u];
+}
+
+void
+drawboxes(int x, int y, int cw, int ch, XftColor *fg, XftColor *bg,
+          const XftGlyphFontSpec *specs, int len)
+{
+	for ( ; len-- > 0; x += cw, specs++)
+		drawbox(x, y, cw, ch, fg, bg, (ushort)specs->glyph);
+}
+
+/* implementation */
+
+void
+drawbox(int x, int y, int w, int h, XftColor *fg, XftColor *bg, ushort bd)
+{
+	ushort cat = bd & ~(BDB | 0xff);  /* mask out bold and data */
+	if (bd & (BDL | BDA)) {
+		/* lines (light/double/heavy/arcs) */
+		drawboxlines(x, y, w, h, fg, bd);
+
+	} else if (cat == BBD) {
+		/* lower (8-X)/8 block */
+		int d = DIV((uint8_t)bd * h, 8);
+		XftDrawRect(xd, fg, x, y + d, w, h - d);
+
+	} else if (cat == BBU) {
+		/* upper X/8 block */
+		XftDrawRect(xd, fg, x, y, w, DIV((uint8_t)bd * h, 8));
+
+	} else if (cat == BBL) {
+		/* left X/8 block */
+		XftDrawRect(xd, fg, x, y, DIV((uint8_t)bd * w, 8), h);
+
+	} else if (cat == BBR) {
+		/* right (8-X)/8 block */
+		int d = DIV((uint8_t)bd * w, 8);
+		XftDrawRect(xd, fg, x + d, y, w - d, h);
+
+	} else if (cat == BBQ) {
+		/* Quadrants */
+		int w2 = DIV(w, 2), h2 = DIV(h, 2);
+		if (bd & TL)
+			XftDrawRect(xd, fg, x, y, w2, h2);
+		if (bd & TR)
+			XftDrawRect(xd, fg, x + w2, y, w - w2, h2);
+		if (bd & BL)
+			XftDrawRect(xd, fg, x, y + h2, w2, h - h2);
+		if (bd & BR)
+			XftDrawRect(xd, fg, x + w2, y + h2, w - w2, h - h2);
+
+	} else if (bd & BBS) {
+		/* Shades - data is 1/2/3 for 25%/50%/75% alpha, respectively */
+		int d = (uint8_t)bd;
+		XftColor xfc;
+		XRenderColor xrc = { .alpha = 0xffff };
+
+		xrc.red = DIV(fg->color.red * d + bg->color.red * (4 - d), 4);
+		xrc.green = DIV(fg->color.green * d + bg->color.green * (4 - d), 4);
+		xrc.blue = DIV(fg->color.blue * d + bg->color.blue * (4 - d), 4);
+
+		XftColorAllocValue(xdpy, xvis, xcmap, &xrc, &xfc);
+		XftDrawRect(xd, &xfc, x, y, w, h);
+		XftColorFree(xdpy, xvis, xcmap, &xfc);
+
+	} else if (cat == BRL) {
+		/* braille, each data bit corresponds to one dot at 2x4 grid */
+		int w1 = DIV(w, 2);
+		int h1 = DIV(h, 4), h2 = DIV(h, 2), h3 = DIV(3 * h, 4);
+
+		if (bd & 1)   XftDrawRect(xd, fg, x, y, w1, h1);
+		if (bd & 2)   XftDrawRect(xd, fg, x, y + h1, w1, h2 - h1);
+		if (bd & 4)   XftDrawRect(xd, fg, x, y + h2, w1, h3 - h2);
+		if (bd & 8)   XftDrawRect(xd, fg, x + w1, y, w - w1, h1);
+		if (bd & 16)  XftDrawRect(xd, fg, x + w1, y + h1, w - w1, h2 - h1);
+		if (bd & 32)  XftDrawRect(xd, fg, x + w1, y + h2, w - w1, h3 - h2);
+		if (bd & 64)  XftDrawRect(xd, fg, x, y + h3, w1, h - h3);
+		if (bd & 128) XftDrawRect(xd, fg, x + w1, y + h3, w - w1, h - h3);
+
+	}
+}
+
+void
+drawboxlines(int x, int y, int w, int h, XftColor *fg, ushort bd)
+{
+	/* s: stem thickness. width/8 roughly matches underscore thickness. */
+	/* We draw bold as 1.5 * normal-stem and at least 1px thicker.      */
+	/* doubles draw at least 3px, even when w or h < 3. bold needs 6px. */
+	int mwh = MIN(w, h);
+	int base_s = MAX(1, DIV(mwh, 8));
+	int bold = (bd & BDB) && mwh >= 6;  /* possibly ignore boldness */
+	int s = bold ? MAX(base_s + 1, DIV(3 * base_s, 2)) : base_s;
+	int w2 = DIV(w - s, 2), h2 = DIV(h - s, 2);
+	/* the s-by-s square (x + w2, y + h2, s, s) is the center texel.    */
+	/* The base length (per direction till edge) includes this square.  */
+
+	int light = bd & (LL | LU | LR | LD);
+	int double_ = bd & (DL | DU | DR | DD);
+
+	if (light) {
+		/* d: additional (negative) length to not-draw the center   */
+		/* texel - at arcs and avoid drawing inside (some) doubles  */
+		int arc = bd & BDA;
+		int multi_light = light & (light - 1);
+		int multi_double = double_ & (double_ - 1);
+		/* light crosses double only at DH+LV, DV+LH (ref. shapes)  */
+		int d = arc || (multi_double && !multi_light) ? -s : 0;
+
+		if (bd & LL)
+			XftDrawRect(xd, fg, x, y + h2, w2 + s + d, s);
+		if (bd & LU)
+			XftDrawRect(xd, fg, x + w2, y, s, h2 + s + d);
+		if (bd & LR)
+			XftDrawRect(xd, fg, x + w2 - d, y + h2, w - w2 + d, s);
+		if (bd & LD)
+			XftDrawRect(xd, fg, x + w2, y + h2 - d, s, h - h2 + d);
+	}
+
+	/* double lines - also align with light to form heavy when combined */
+	if (double_) {
+		/*
+		* going clockwise, for each double-ray: p is additional length
+		* to the single-ray nearer to the previous direction, and n to
+		* the next. p and n adjust from the base length to lengths
+		* which consider other doubles - shorter to avoid intersections
+		* (p, n), or longer to draw the far-corner texel (n).
+		*/
+		int dl = bd & DL, du = bd & DU, dr = bd & DR, dd = bd & DD;
+		if (dl) {
+			int p = dd ? -s : 0, n = du ? -s : dd ? s : 0;
+			XftDrawRect(xd, fg, x, y + h2 + s, w2 + s + p, s);
+			XftDrawRect(xd, fg, x, y + h2 - s, w2 + s + n, s);
+		}
+		if (du) {
+			int p = dl ? -s : 0, n = dr ? -s : dl ? s : 0;
+			XftDrawRect(xd, fg, x + w2 - s, y, s, h2 + s + p);
+			XftDrawRect(xd, fg, x + w2 + s, y, s, h2 + s + n);
+		}
+		if (dr) {
+			int p = du ? -s : 0, n = dd ? -s : du ? s : 0;
+			XftDrawRect(xd, fg, x + w2 - p, y + h2 - s, w - w2 + p, s);
+			XftDrawRect(xd, fg, x + w2 - n, y + h2 + s, w - w2 + n, s);
+		}
+		if (dd) {
+			int p = dr ? -s : 0, n = dl ? -s : dr ? s : 0;
+			XftDrawRect(xd, fg, x + w2 + s, y + h2 - p, s, h - h2 + p);
+			XftDrawRect(xd, fg, x + w2 - s, y + h2 - n, s, h - h2 + n);
+		}
+	}
+}

boxdraw_data.h

@@ -0,0 +1,214 @@
+/*
+ * Copyright 2018 Avi Halachmi (:avih) avihpit@yahoo.com https://github.com/avih
+ * MIT/X Consortium License
+ */
+
+/*
+ * U+25XX codepoints data
+ *
+ * References:
+ *   http://www.unicode.org/charts/PDF/U2500.pdf
+ *   http://www.unicode.org/charts/PDF/U2580.pdf
+ *
+ * Test page:
+ *   https://github.com/GNOME/vte/blob/master/doc/boxes.txt
+ */
+
+/* Each shape is encoded as 16-bits. Higher bits are category, lower are data */
+/* Categories (mutually exclusive except BDB): */
+/* For convenience, BDL/BDA/BBS/BDB are 1 bit each, the rest are enums */
+#define BDL (1<<8)   /* Box Draw Lines (light/double/heavy) */
+#define BDA (1<<9)   /* Box Draw Arc (light) */
+
+#define BBD (1<<10)  /* Box Block Down (lower) X/8 */
+#define BBL (2<<10)  /* Box Block Left X/8 */
+#define BBU (3<<10)  /* Box Block Upper X/8 */
+#define BBR (4<<10)  /* Box Block Right X/8 */
+#define BBQ (5<<10)  /* Box Block Quadrants */
+#define BRL (6<<10)  /* Box Braille (data is lower byte of U28XX) */
+
+#define BBS (1<<14)  /* Box Block Shades */
+#define BDB (1<<15)  /* Box Draw is Bold */
+
+/* (BDL/BDA) Light/Double/Heavy x Left/Up/Right/Down/Horizontal/Vertical      */
+/* Heavy is light+double (literally drawing light+double align to form heavy) */
+#define LL (1<<0)
+#define LU (1<<1)
+#define LR (1<<2)
+#define LD (1<<3)
+#define LH (LL+LR)
+#define LV (LU+LD)
+
+#define DL (1<<4)
+#define DU (1<<5)
+#define DR (1<<6)
+#define DD (1<<7)
+#define DH (DL+DR)
+#define DV (DU+DD)
+
+#define HL (LL+DL)
+#define HU (LU+DU)
+#define HR (LR+DR)
+#define HD (LD+DD)
+#define HH (HL+HR)
+#define HV (HU+HD)
+
+/* (BBQ) Quadrants Top/Bottom x Left/Right */
+#define TL (1<<0)
+#define TR (1<<1)
+#define BL (1<<2)
+#define BR (1<<3)
+
+/* Data for U+2500 - U+259F except dashes/diagonals */
+static const unsigned short boxdata[256] = {
+	/* light lines */
+	[0x00] = BDL + LH,       /* light horizontal */
+	[0x02] = BDL + LV,       /* light vertical */
+	[0x0c] = BDL + LD + LR,  /* light down and right */
+	[0x10] = BDL + LD + LL,  /* light down and left */
+	[0x14] = BDL + LU + LR,  /* light up and right */
+	[0x18] = BDL + LU + LL,  /* light up and left */
+	[0x1c] = BDL + LV + LR,  /* light vertical and right */
+	[0x24] = BDL + LV + LL,  /* light vertical and left */
+	[0x2c] = BDL + LH + LD,  /* light horizontal and down */
+	[0x34] = BDL + LH + LU,  /* light horizontal and up */
+	[0x3c] = BDL + LV + LH,  /* light vertical and horizontal */
+	[0x74] = BDL + LL,       /* light left */
+	[0x75] = BDL + LU,       /* light up */
+	[0x76] = BDL + LR,       /* light right */
+	[0x77] = BDL + LD,       /* light down */
+
+	/* heavy [+light] lines */
+	[0x01] = BDL + HH,
+	[0x03] = BDL + HV,
+	[0x0d] = BDL + HR + LD,
+	[0x0e] = BDL + HD + LR,
+	[0x0f] = BDL + HD + HR,
+	[0x11] = BDL + HL + LD,
+	[0x12] = BDL + HD + LL,
+	[0x13] = BDL + HD + HL,
+	[0x15] = BDL + HR + LU,
+	[0x16] = BDL + HU + LR,
+	[0x17] = BDL + HU + HR,
+	[0x19] = BDL + HL + LU,
+	[0x1a] = BDL + HU + LL,
+	[0x1b] = BDL + HU + HL,
+	[0x1d] = BDL + HR + LV,
+	[0x1e] = BDL + HU + LD + LR,
+	[0x1f] = BDL + HD + LR + LU,
+	[0x20] = BDL + HV + LR,
+	[0x21] = BDL + HU + HR + LD,
+	[0x22] = BDL + HD + HR + LU,
+	[0x23] = BDL + HV + HR,
+	[0x25] = BDL + HL + LV,
+	[0x26] = BDL + HU + LD + LL,
+	[0x27] = BDL + HD + LU + LL,
+	[0x28] = BDL + HV + LL,
+	[0x29] = BDL + HU + HL + LD,
+	[0x2a] = BDL + HD + HL + LU,
+	[0x2b] = BDL + HV + HL,
+	[0x2d] = BDL + HL + LD + LR,
+	[0x2e] = BDL + HR + LL + LD,
+	[0x2f] = BDL + HH + LD,
+	[0x30] = BDL + HD + LH,
+	[0x31] = BDL + HD + HL + LR,
+	[0x32] = BDL + HR + HD + LL,
+	[0x33] = BDL + HH + HD,
+	[0x35] = BDL + HL + LU + LR,
+	[0x36] = BDL + HR + LU + LL,
+	[0x37] = BDL + HH + LU,
+	[0x38] = BDL + HU + LH,
+	[0x39] = BDL + HU + HL + LR,
+	[0x3a] = BDL + HU + HR + LL,
+	[0x3b] = BDL + HH + HU,
+	[0x3d] = BDL + HL + LV + LR,
+	[0x3e] = BDL + HR + LV + LL,
+	[0x3f] = BDL + HH + LV,
+	[0x40] = BDL + HU + LH + LD,
+	[0x41] = BDL + HD + LH + LU,
+	[0x42] = BDL + HV + LH,
+	[0x43] = BDL + HU + HL + LD + LR,
+	[0x44] = BDL + HU + HR + LD + LL,
+	[0x45] = BDL + HD + HL + LU + LR,
+	[0x46] = BDL + HD + HR + LU + LL,
+	[0x47] = BDL + HH + HU + LD,
+	[0x48] = BDL + HH + HD + LU,
+	[0x49] = BDL + HV + HL + LR,
+	[0x4a] = BDL + HV + HR + LL,
+	[0x4b] = BDL + HV + HH,
+	[0x78] = BDL + HL,
+	[0x79] = BDL + HU,
+	[0x7a] = BDL + HR,
+	[0x7b] = BDL + HD,
+	[0x7c] = BDL + HR + LL,
+	[0x7d] = BDL + HD + LU,
+	[0x7e] = BDL + HL + LR,
+	[0x7f] = BDL + HU + LD,
+
+	/* double [+light] lines */
+	[0x50] = BDL + DH,
+	[0x51] = BDL + DV,
+	[0x52] = BDL + DR + LD,
+	[0x53] = BDL + DD + LR,
+	[0x54] = BDL + DR + DD,
+	[0x55] = BDL + DL + LD,
+	[0x56] = BDL + DD + LL,
+	[0x57] = BDL + DL + DD,
+	[0x58] = BDL + DR + LU,
+	[0x59] = BDL + DU + LR,
+	[0x5a] = BDL + DU + DR,
+	[0x5b] = BDL + DL + LU,
+	[0x5c] = BDL + DU + LL,
+	[0x5d] = BDL + DL + DU,
+	[0x5e] = BDL + DR + LV,
+	[0x5f] = BDL + DV + LR,
+	[0x60] = BDL + DV + DR,
+	[0x61] = BDL + DL + LV,
+	[0x62] = BDL + DV + LL,
+	[0x63] = BDL + DV + DL,
+	[0x64] = BDL + DH + LD,
+	[0x65] = BDL + DD + LH,
+	[0x66] = BDL + DD + DH,
+	[0x67] = BDL + DH + LU,
+	[0x68] = BDL + DU + LH,
+	[0x69] = BDL + DH + DU,
+	[0x6a] = BDL + DH + LV,
+	[0x6b] = BDL + DV + LH,
+	[0x6c] = BDL + DH + DV,
+
+	/* (light) arcs */
+	[0x6d] = BDA + LD + LR,
+	[0x6e] = BDA + LD + LL,
+	[0x6f] = BDA + LU + LL,
+	[0x70] = BDA + LU + LR,
+
+	/* Lower (Down) X/8 block (data is 8 - X) */
+	[0x81] = BBD + 7, [0x82] = BBD + 6, [0x83] = BBD + 5, [0x84] = BBD + 4,
+	[0x85] = BBD + 3, [0x86] = BBD + 2, [0x87] = BBD + 1, [0x88] = BBD + 0,
+
+	/* Left X/8 block (data is X) */
+	[0x89] = BBL + 7, [0x8a] = BBL + 6, [0x8b] = BBL + 5, [0x8c] = BBL + 4,
+	[0x8d] = BBL + 3, [0x8e] = BBL + 2, [0x8f] = BBL + 1,
+
+	/* upper 1/2 (4/8), 1/8 block (X), right 1/2, 1/8 block (8-X) */
+	[0x80] = BBU + 4, [0x94] = BBU + 1,
+	[0x90] = BBR + 4, [0x95] = BBR + 7,
+
+	/* Quadrants */
+	[0x96] = BBQ + BL,
+	[0x97] = BBQ + BR,
+	[0x98] = BBQ + TL,
+	[0x99] = BBQ + TL + BL + BR,
+	[0x9a] = BBQ + TL + BR,
+	[0x9b] = BBQ + TL + TR + BL,
+	[0x9c] = BBQ + TL + TR + BR,
+	[0x9d] = BBQ + TR,
+	[0x9e] = BBQ + BL + TR,
+	[0x9f] = BBQ + BL + TR + BR,
+
+	/* Shades, data is an alpha value in 25% units (1/4, 1/2, 3/4) */
+	[0x91] = BBS + 1, [0x92] = BBS + 2, [0x93] = BBS + 3,
+
+	/* U+2504 - U+250B, U+254C - U+254F: unsupported (dashes) */
+	/* U+2571 - U+2573: unsupported (diagonals) */
+};

config.def.h

@@ -5,7 +5,10 @@
  *
  * font: see http://freedesktop.org/software/fontconfig/fontconfig-user.html
  */
-static char *font = "Liberation Mono:pixelsize=12:antialias=true:autohint=true";
+static char *font = "monospace:pixelsize=32:antialias=true:autohint=true";
+/* Spare fonts */
+static char *font2[] = { "NotoColorEmoji:pixelsize=24:antialias=true:autohint=true" };
+
 static int borderpx = 2;
 
 /*
@@ -53,7 +56,7 @@ int allowwindowops = 0;
  * near minlatency, but it waits longer for slow updates to avoid partial draw.
  * low minlatency will tear/flicker more, as it can "detect" idle too early.
  */
-static double minlatency = 8;
+static double minlatency = 2;
 static double maxlatency = 33;
 
 /*
@@ -67,6 +70,18 @@ static unsigned int blinktimeout = 800;
  */
 static unsigned int cursorthickness = 2;
 
+/*
+ * 1: render most of the lines/blocks characters without using the font for
+ *    perfect alignment between cells (U2500 - U259F except dashes/diagonals).
+ *    Bold affects lines thickness if boxdraw_bold is not 0. Italic is ignored.
+ * 0: disable (render all U25XX glyphs normally from the font).
+ */
+const int boxdraw = 1;
+const int boxdraw_bold = 0;
+
+/* braille (U28XX):  1: render as adjacent "pixels",  0: use font */
+const int boxdraw_braille = 1;
+
 /*
  * bell volume. It must be a value between -100 and 100. Use 0 for disabling
  * it
@@ -93,6 +108,12 @@ char *termname = "st-256color";
  */
 unsigned int tabspaces = 8;
 
+/* bg opacity */
+float alpha = 0.8;
+
+/* Background opacity */
+float alpha_def;
+
 /* Terminal colors (16 first used in escape sequence) */
 static const char *colorname[] = {
 	/* 8 normal colors */
@@ -131,8 +152,8 @@ static const char *colorname[] = {
  */
 unsigned int defaultfg = 258;
 unsigned int defaultbg = 259;
-unsigned int defaultcs = 256;
-static unsigned int defaultrcs = 257;
+unsigned int defaultcs = 3;
+static unsigned int defaultrcs = 50;
 
 /*
  * Default shape of cursor
@@ -170,6 +191,43 @@ static unsigned int defaultattr = 11;
  */
 static uint forcemousemod = ShiftMask;
 
+/*
+ * Xresources preferences to load at startup
+ */
+ResourcePref resources[] = {
+		{ "font",         STRING,  &font },
+		{ "color0",       STRING,  &colorname[0] },
+		{ "color1",       STRING,  &colorname[1] },
+		{ "color2",       STRING,  &colorname[2] },
+		{ "color3",       STRING,  &colorname[3] },
+		{ "color4",       STRING,  &colorname[4] },
+		{ "color5",       STRING,  &colorname[5] },
+		{ "color6",       STRING,  &colorname[6] },
+		{ "color7",       STRING,  &colorname[7] },
+		{ "color8",       STRING,  &colorname[8] },
+		{ "color9",       STRING,  &colorname[9] },
+		{ "color10",      STRING,  &colorname[10] },
+		{ "color11",      STRING,  &colorname[11] },
+		{ "color12",      STRING,  &colorname[12] },
+		{ "color13",      STRING,  &colorname[13] },
+		{ "color14",      STRING,  &colorname[14] },
+		{ "color15",      STRING,  &colorname[15] },
+		{ "background",   STRING,  &colorname[256] },
+		{ "foreground",   STRING,  &colorname[257] },
+		{ "cursorColor",  STRING,  &colorname[258] },
+		{ "termname",     STRING,  &termname },
+		{ "shell",        STRING,  &shell },
+        { "alpha",        FLOAT,   &alpha },
+		{ "minlatency",   INTEGER, &minlatency },
+		{ "maxlatency",   INTEGER, &maxlatency },
+		{ "blinktimeout", INTEGER, &blinktimeout },
+		{ "bellvolume",   INTEGER, &bellvolume },
+		{ "tabspaces",    INTEGER, &tabspaces },
+		{ "borderpx",     INTEGER, &borderpx },
+		{ "cwscale",      FLOAT,   &cwscale },
+		{ "chscale",      FLOAT,   &chscale },
+};
+
 /*
  * Internal mouse shortcuts.
  * Beware that overloading Button1 will disable the selection.
@@ -193,14 +251,22 @@ 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_K,           zoom,           {.f = +2} },
+    { TERMMOD,              XK_J,           zoom,           {.f = -2} },
 	{ TERMMOD,              XK_Home,        zoomreset,      {.f =  0} },
 	{ TERMMOD,              XK_C,           clipcopy,       {.i =  0} },
 	{ TERMMOD,              XK_V,           clippaste,      {.i =  0} },
 	{ TERMMOD,              XK_Y,           selpaste,       {.i =  0} },
 	{ ShiftMask,            XK_Insert,      selpaste,       {.i =  0} },
 	{ TERMMOD,              XK_Num_Lock,    numlock,        {.i =  0} },
+    { TERMMOD,              XK_Escape,      keyboard_select,{ 0 } },
+    { ControlMask,          XK_Page_Up,     kscrollup,      {.i =  10} },
+    { ControlMask,          XK_Page_Down,   kscrolldown,    {.i =  10} },
+    { ControlMask,          XK_k,           kscrollup,      {.i =  1} },
+    { ControlMask,          XK_j,           kscrolldown,    {.i =  1} },
+	{ TERMMOD,              XK_N,           chgalpha,       {.f = -1} }, /* Decrease opacity */
+	{ TERMMOD,              XK_M,           chgalpha,       {.f = +1} }, /* Increase opacity */
+	{ TERMMOD,              XK_B,           chgalpha,       {.f =  0} }, /* Reset opacity */
 };
 
 /*

config.h

@@ -0,0 +1,540 @@
+/* See LICENSE file for copyright and license details. */
+
+/*
+ * appearance
+ *
+ * font: see http://freedesktop.org/software/fontconfig/fontconfig-user.html
+ */
+static char *font = "monospace:pixelsize=32:antialias=true:autohint=true";
+/* Spare fonts */
+static char *font2[] = { "NotoColorEmoji:pixelsize=24:antialias=true:autohint=true" };
+
+static int borderpx = 2;
+
+/*
+ * What program is execed by st depends of these precedence rules:
+ * 1: program passed with -e
+ * 2: scroll and/or utmp
+ * 3: SHELL environment variable
+ * 4: value of shell in /etc/passwd
+ * 5: value of shell in config.h
+ */
+static char *shell = "/bin/sh";
+char *utmp = NULL;
+/* scroll program: to enable use a string like "scroll" */
+char *scroll = NULL;
+char *stty_args = "stty raw pass8 nl -echo -iexten -cstopb 38400";
+
+/* identification sequence returned in DA and DECID */
+char *vtiden = "\033[?6c";
+
+/* Kerning / character bounding-box multipliers */
+static float cwscale = 1.0;
+static float chscale = 1.0;
+
+/*
+ * word delimiter string
+ *
+ * More advanced example: L" `'\"()[]{}"
+ */
+wchar_t *worddelimiters = L" ";
+
+/* selection timeouts (in milliseconds) */
+static unsigned int doubleclicktimeout = 300;
+static unsigned int tripleclicktimeout = 600;
+
+/* alt screens */
+int allowaltscreen = 1;
+
+/* allow certain non-interactive (insecure) window operations such as:
+   setting the clipboard text */
+int allowwindowops = 0;
+
+/*
+ * draw latency range in ms - from new content/keypress/etc until drawing.
+ * within this range, st draws when content stops arriving (idle). mostly it's
+ * near minlatency, but it waits longer for slow updates to avoid partial draw.
+ * low minlatency will tear/flicker more, as it can "detect" idle too early.
+ */
+static double minlatency = 8;
+static double maxlatency = 33;
+
+/*
+ * blinking timeout (set to 0 to disable blinking) for the terminal blinking
+ * attribute.
+ */
+static unsigned int blinktimeout = 800;
+
+/*
+ * thickness of underline and bar cursors
+ */
+static unsigned int cursorthickness = 2;
+
+/*
+ * 1: render most of the lines/blocks characters without using the font for
+ *    perfect alignment between cells (U2500 - U259F except dashes/diagonals).
+ *    Bold affects lines thickness if boxdraw_bold is not 0. Italic is ignored.
+ * 0: disable (render all U25XX glyphs normally from the font).
+ */
+const int boxdraw = 1;
+const int boxdraw_bold = 0;
+
+/* braille (U28XX):  1: render as adjacent "pixels",  0: use font */
+const int boxdraw_braille = 1;
+
+/*
+ * bell volume. It must be a value between -100 and 100. Use 0 for disabling
+ * it
+ */
+static int bellvolume = 0;
+
+/* default TERM value */
+char *termname = "st-256color";
+
+/*
+ * spaces per tab
+ *
+ * When you are changing this value, don't forget to adapt the »it« value in
+ * the st.info and appropriately install the st.info in the environment where
+ * you use this st version.
+ *
+ *	it#$tabspaces,
+ *
+ * Secondly make sure your kernel is not expanding tabs. When running `stty
+ * -a` »tab0« should appear. You can tell the terminal to not expand tabs by
+ *  running following command:
+ *
+ *	stty tabs
+ */
+unsigned int tabspaces = 8;
+
+/* bg opacity */
+float alpha = 0.8;
+
+/* Background opacity */
+float alpha_def;
+
+/* Terminal colors (16 first used in escape sequence) */
+static const char *colorname[] = {
+	/* 8 normal colors */
+	"black",
+	"red3",
+	"green3",
+	"yellow3",
+	"blue2",
+	"magenta3",
+	"cyan3",
+	"gray90",
+
+	/* 8 bright colors */
+	"gray50",
+	"red",
+	"green",
+	"yellow",
+	"#5c5cff",
+	"magenta",
+	"cyan",
+	"white",
+
+	[255] = 0,
+
+	/* more colors can be added after 255 to use with DefaultXX */
+	"#cccccc",
+	"#555555",
+	"gray90", /* default foreground colour */
+	"black", /* default background colour */
+};
+
+
+/*
+ * Default colors (colorname index)
+ * foreground, background, cursor, reverse cursor
+ */
+unsigned int defaultfg = 258;
+unsigned int defaultbg = 259;
+unsigned int defaultcs = 3;
+static unsigned int defaultrcs = 50;
+
+/*
+ * Default shape of cursor
+ * 2: Block ("█")
+ * 4: Underline ("_")
+ * 6: Bar ("|")
+ * 7: Snowman ("☃")
+ */
+static unsigned int cursorshape = 2;
+
+/*
+ * Default columns and rows numbers
+ */
+
+static unsigned int cols = 80;
+static unsigned int rows = 24;
+
+/*
+ * Default colour and shape of the mouse cursor
+ */
+static unsigned int mouseshape = XC_xterm;
+static unsigned int mousefg = 7;
+static unsigned int mousebg = 0;
+
+/*
+ * Color used to display font attributes when fontconfig selected a font which
+ * doesn't match the ones requested.
+ */
+static unsigned int defaultattr = 11;
+
+/*
+ * Force mouse select/shortcuts while mask is active (when MODE_MOUSE is set).
+ * Note that if you want to use ShiftMask with selmasks, set this to an other
+ * modifier, set to 0 to not use it.
+ */
+static uint forcemousemod = ShiftMask;
+
+/*
+ * Xresources preferences to load at startup
+ */
+ResourcePref resources[] = {
+		{ "font",         STRING,  &font },
+		{ "color0",       STRING,  &colorname[0] },
+		{ "color1",       STRING,  &colorname[1] },
+		{ "color2",       STRING,  &colorname[2] },
+		{ "color3",       STRING,  &colorname[3] },
+		{ "color4",       STRING,  &colorname[4] },
+		{ "color5",       STRING,  &colorname[5] },
+		{ "color6",       STRING,  &colorname[6] },
+		{ "color7",       STRING,  &colorname[7] },
+		{ "color8",       STRING,  &colorname[8] },
+		{ "color9",       STRING,  &colorname[9] },
+		{ "color10",      STRING,  &colorname[10] },
+		{ "color11",      STRING,  &colorname[11] },
+		{ "color12",      STRING,  &colorname[12] },
+		{ "color13",      STRING,  &colorname[13] },
+		{ "color14",      STRING,  &colorname[14] },
+		{ "color15",      STRING,  &colorname[15] },
+		{ "background",   STRING,  &colorname[256] },
+		{ "foreground",   STRING,  &colorname[257] },
+		{ "cursorColor",  STRING,  &colorname[258] },
+		{ "termname",     STRING,  &termname },
+		{ "shell",        STRING,  &shell },
+        { "alpha",        FLOAT,   &alpha },
+		{ "minlatency",   INTEGER, &minlatency },
+		{ "maxlatency",   INTEGER, &maxlatency },
+		{ "blinktimeout", INTEGER, &blinktimeout },
+		{ "bellvolume",   INTEGER, &bellvolume },
+		{ "tabspaces",    INTEGER, &tabspaces },
+		{ "borderpx",     INTEGER, &borderpx },
+		{ "cwscale",      FLOAT,   &cwscale },
+		{ "chscale",      FLOAT,   &chscale },
+};
+
+/*
+ * Internal mouse shortcuts.
+ * Beware that overloading Button1 will disable the selection.
+ */
+static MouseShortcut mshortcuts[] = {
+	/* mask                 button   function        argument       release */
+	{ XK_ANY_MOD,           Button2, selpaste,       {.i = 0},      1 },
+	{ ShiftMask,            Button4, ttysend,        {.s = "\033[5;2~"} },
+	{ XK_ANY_MOD,           Button4, ttysend,        {.s = "\031"} },
+	{ ShiftMask,            Button5, ttysend,        {.s = "\033[6;2~"} },
+	{ XK_ANY_MOD,           Button5, ttysend,        {.s = "\005"} },
+};
+
+/* Internal keyboard shortcuts. */
+#define MODKEY Mod1Mask
+#define TERMMOD (ControlMask|ShiftMask)
+
+static Shortcut shortcuts[] = {
+	/* mask                 keysym          function        argument */
+	{ XK_ANY_MOD,           XK_Break,       sendbreak,      {.i =  0} },
+	{ ControlMask,          XK_Print,       toggleprinter,  {.i =  0} },
+	{ ShiftMask,            XK_Print,       printscreen,    {.i =  0} },
+	{ XK_ANY_MOD,           XK_Print,       printsel,       {.i =  0} },
+    { TERMMOD,              XK_K,           zoom,           {.f = +2} },
+    { TERMMOD,              XK_J,           zoom,           {.f = -2} },
+	{ TERMMOD,              XK_Home,        zoomreset,      {.f =  0} },
+	{ TERMMOD,              XK_C,           clipcopy,       {.i =  0} },
+	{ TERMMOD,              XK_V,           clippaste,      {.i =  0} },
+	{ TERMMOD,              XK_Y,           selpaste,       {.i =  0} },
+	{ ShiftMask,            XK_Insert,      selpaste,       {.i =  0} },
+	{ TERMMOD,              XK_Num_Lock,    numlock,        {.i =  0} },
+    { TERMMOD,              XK_Escape,      keyboard_select,{ 0 } },
+    { ControlMask,          XK_Page_Up,     kscrollup,      {.i =  10} },
+    { ControlMask,          XK_Page_Down,   kscrolldown,    {.i =  10} },
+    { ControlMask,          XK_k,           kscrollup,      {.i =  1} },
+    { ControlMask,          XK_j,           kscrolldown,    {.i =  1} },
+	{ TERMMOD,              XK_N,           chgalpha,       {.f = -1} }, /* Decrease opacity */
+	{ TERMMOD,              XK_M,           chgalpha,       {.f = +1} }, /* Increase opacity */
+	{ TERMMOD,              XK_B,           chgalpha,       {.f =  0} }, /* Reset opacity */
+};
+
+/*
+ * Special keys (change & recompile st.info accordingly)
+ *
+ * Mask value:
+ * * Use XK_ANY_MOD to match the key no matter modifiers state
+ * * Use XK_NO_MOD to match the key alone (no modifiers)
+ * appkey value:
+ * * 0: no value
+ * * > 0: keypad application mode enabled
+ * *   = 2: term.numlock = 1
+ * * < 0: keypad application mode disabled
+ * appcursor value:
+ * * 0: no value
+ * * > 0: cursor application mode enabled
+ * * < 0: cursor application mode disabled
+ *
+ * Be careful with the order of the definitions because st searches in
+ * this table sequentially, so any XK_ANY_MOD must be in the last
+ * position for a key.
+ */
+
+/*
+ * If you want keys other than the X11 function keys (0xFD00 - 0xFFFF)
+ * to be mapped below, add them to this array.
+ */
+static KeySym mappedkeys[] = { -1 };
+
+/*
+ * State bits to ignore when matching key or button events.  By default,
+ * numlock (Mod2Mask) and keyboard layout (XK_SWITCH_MOD) are ignored.
+ */
+static uint ignoremod = Mod2Mask|XK_SWITCH_MOD;
+
+/*
+ * This is the huge key array which defines all compatibility to the Linux
+ * world. Please decide about changes wisely.
+ */
+static Key key[] = {
+	/* keysym           mask            string      appkey appcursor */
+	{ XK_KP_Home,       ShiftMask,      "\033[2J",       0,   -1},
+	{ XK_KP_Home,       ShiftMask,      "\033[1;2H",     0,   +1},
+	{ XK_KP_Home,       XK_ANY_MOD,     "\033[H",        0,   -1},
+	{ XK_KP_Home,       XK_ANY_MOD,     "\033[1~",       0,   +1},
+	{ XK_KP_Up,         XK_ANY_MOD,     "\033Ox",       +1,    0},
+	{ XK_KP_Up,         XK_ANY_MOD,     "\033[A",        0,   -1},
+	{ XK_KP_Up,         XK_ANY_MOD,     "\033OA",        0,   +1},
+	{ XK_KP_Down,       XK_ANY_MOD,     "\033Or",       +1,    0},
+	{ XK_KP_Down,       XK_ANY_MOD,     "\033[B",        0,   -1},
+	{ XK_KP_Down,       XK_ANY_MOD,     "\033OB",        0,   +1},
+	{ XK_KP_Left,       XK_ANY_MOD,     "\033Ot",       +1,    0},
+	{ XK_KP_Left,       XK_ANY_MOD,     "\033[D",        0,   -1},
+	{ XK_KP_Left,       XK_ANY_MOD,     "\033OD",        0,   +1},
+	{ XK_KP_Right,      XK_ANY_MOD,     "\033Ov",       +1,    0},
+	{ XK_KP_Right,      XK_ANY_MOD,     "\033[C",        0,   -1},
+	{ XK_KP_Right,      XK_ANY_MOD,     "\033OC",        0,   +1},
+	{ XK_KP_Prior,      ShiftMask,      "\033[5;2~",     0,    0},
+	{ XK_KP_Prior,      XK_ANY_MOD,     "\033[5~",       0,    0},
+	{ XK_KP_Begin,      XK_ANY_MOD,     "\033[E",        0,    0},
+	{ XK_KP_End,        ControlMask,    "\033[J",       -1,    0},
+	{ XK_KP_End,        ControlMask,    "\033[1;5F",    +1,    0},
+	{ XK_KP_End,        ShiftMask,      "\033[K",       -1,    0},
+	{ XK_KP_End,        ShiftMask,      "\033[1;2F",    +1,    0},
+	{ XK_KP_End,        XK_ANY_MOD,     "\033[4~",       0,    0},
+	{ XK_KP_Next,       ShiftMask,      "\033[6;2~",     0,    0},
+	{ XK_KP_Next,       XK_ANY_MOD,     "\033[6~",       0,    0},
+	{ XK_KP_Insert,     ShiftMask,      "\033[2;2~",    +1,    0},
+	{ XK_KP_Insert,     ShiftMask,      "\033[4l",      -1,    0},
+	{ XK_KP_Insert,     ControlMask,    "\033[L",       -1,    0},
+	{ XK_KP_Insert,     ControlMask,    "\033[2;5~",    +1,    0},
+	{ XK_KP_Insert,     XK_ANY_MOD,     "\033[4h",      -1,    0},
+	{ XK_KP_Insert,     XK_ANY_MOD,     "\033[2~",      +1,    0},
+	{ XK_KP_Delete,     ControlMask,    "\033[M",       -1,    0},
+	{ XK_KP_Delete,     ControlMask,    "\033[3;5~",    +1,    0},
+	{ XK_KP_Delete,     ShiftMask,      "\033[2K",      -1,    0},
+	{ XK_KP_Delete,     ShiftMask,      "\033[3;2~",    +1,    0},
+	{ XK_KP_Delete,     XK_ANY_MOD,     "\033[P",       -1,    0},
+	{ XK_KP_Delete,     XK_ANY_MOD,     "\033[3~",      +1,    0},
+	{ XK_KP_Multiply,   XK_ANY_MOD,     "\033Oj",       +2,    0},
+	{ XK_KP_Add,        XK_ANY_MOD,     "\033Ok",       +2,    0},
+	{ XK_KP_Enter,      XK_ANY_MOD,     "\033OM",       +2,    0},
+	{ XK_KP_Enter,      XK_ANY_MOD,     "\r",           -1,    0},
+	{ XK_KP_Subtract,   XK_ANY_MOD,     "\033Om",       +2,    0},
+	{ XK_KP_Decimal,    XK_ANY_MOD,     "\033On",       +2,    0},
+	{ XK_KP_Divide,     XK_ANY_MOD,     "\033Oo",       +2,    0},
+	{ XK_KP_0,          XK_ANY_MOD,     "\033Op",       +2,    0},
+	{ XK_KP_1,          XK_ANY_MOD,     "\033Oq",       +2,    0},
+	{ XK_KP_2,          XK_ANY_MOD,     "\033Or",       +2,    0},
+	{ XK_KP_3,          XK_ANY_MOD,     "\033Os",       +2,    0},
+	{ XK_KP_4,          XK_ANY_MOD,     "\033Ot",       +2,    0},
+	{ XK_KP_5,          XK_ANY_MOD,     "\033Ou",       +2,    0},
+	{ XK_KP_6,          XK_ANY_MOD,     "\033Ov",       +2,    0},
+	{ XK_KP_7,          XK_ANY_MOD,     "\033Ow",       +2,    0},
+	{ XK_KP_8,          XK_ANY_MOD,     "\033Ox",       +2,    0},
+	{ XK_KP_9,          XK_ANY_MOD,     "\033Oy",       +2,    0},
+	{ XK_Up,            ShiftMask,      "\033[1;2A",     0,    0},
+	{ XK_Up,            Mod1Mask,       "\033[1;3A",     0,    0},
+	{ XK_Up,         ShiftMask|Mod1Mask,"\033[1;4A",     0,    0},
+	{ XK_Up,            ControlMask,    "\033[1;5A",     0,    0},
+	{ XK_Up,      ShiftMask|ControlMask,"\033[1;6A",     0,    0},
+	{ XK_Up,       ControlMask|Mod1Mask,"\033[1;7A",     0,    0},
+	{ XK_Up,ShiftMask|ControlMask|Mod1Mask,"\033[1;8A",  0,    0},
+	{ XK_Up,            XK_ANY_MOD,     "\033[A",        0,   -1},
+	{ XK_Up,            XK_ANY_MOD,     "\033OA",        0,   +1},
+	{ XK_Down,          ShiftMask,      "\033[1;2B",     0,    0},
+	{ XK_Down,          Mod1Mask,       "\033[1;3B",     0,    0},
+	{ XK_Down,       ShiftMask|Mod1Mask,"\033[1;4B",     0,    0},
+	{ XK_Down,          ControlMask,    "\033[1;5B",     0,    0},
+	{ XK_Down,    ShiftMask|ControlMask,"\033[1;6B",     0,    0},
+	{ XK_Down,     ControlMask|Mod1Mask,"\033[1;7B",     0,    0},
+	{ XK_Down,ShiftMask|ControlMask|Mod1Mask,"\033[1;8B",0,    0},
+	{ XK_Down,          XK_ANY_MOD,     "\033[B",        0,   -1},
+	{ XK_Down,          XK_ANY_MOD,     "\033OB",        0,   +1},
+	{ XK_Left,          ShiftMask,      "\033[1;2D",     0,    0},
+	{ XK_Left,          Mod1Mask,       "\033[1;3D",     0,    0},
+	{ XK_Left,       ShiftMask|Mod1Mask,"\033[1;4D",     0,    0},
+	{ XK_Left,          ControlMask,    "\033[1;5D",     0,    0},
+	{ XK_Left,    ShiftMask|ControlMask,"\033[1;6D",     0,    0},
+	{ XK_Left,     ControlMask|Mod1Mask,"\033[1;7D",     0,    0},
+	{ XK_Left,ShiftMask|ControlMask|Mod1Mask,"\033[1;8D",0,    0},
+	{ XK_Left,          XK_ANY_MOD,     "\033[D",        0,   -1},
+	{ XK_Left,          XK_ANY_MOD,     "\033OD",        0,   +1},
+	{ XK_Right,         ShiftMask,      "\033[1;2C",     0,    0},
+	{ XK_Right,         Mod1Mask,       "\033[1;3C",     0,    0},
+	{ XK_Right,      ShiftMask|Mod1Mask,"\033[1;4C",     0,    0},
+	{ XK_Right,         ControlMask,    "\033[1;5C",     0,    0},
+	{ XK_Right,   ShiftMask|ControlMask,"\033[1;6C",     0,    0},
+	{ XK_Right,    ControlMask|Mod1Mask,"\033[1;7C",     0,    0},
+	{ XK_Right,ShiftMask|ControlMask|Mod1Mask,"\033[1;8C",0,   0},
+	{ XK_Right,         XK_ANY_MOD,     "\033[C",        0,   -1},
+	{ XK_Right,         XK_ANY_MOD,     "\033OC",        0,   +1},
+	{ XK_ISO_Left_Tab,  ShiftMask,      "\033[Z",        0,    0},
+	{ XK_Return,        Mod1Mask,       "\033\r",        0,    0},
+	{ XK_Return,        XK_ANY_MOD,     "\r",            0,    0},
+	{ XK_Insert,        ShiftMask,      "\033[4l",      -1,    0},
+	{ XK_Insert,        ShiftMask,      "\033[2;2~",    +1,    0},
+	{ XK_Insert,        ControlMask,    "\033[L",       -1,    0},
+	{ XK_Insert,        ControlMask,    "\033[2;5~",    +1,    0},
+	{ XK_Insert,        XK_ANY_MOD,     "\033[4h",      -1,    0},
+	{ XK_Insert,        XK_ANY_MOD,     "\033[2~",      +1,    0},
+	{ XK_Delete,        ControlMask,    "\033[M",       -1,    0},
+	{ XK_Delete,        ControlMask,    "\033[3;5~",    +1,    0},
+	{ XK_Delete,        ShiftMask,      "\033[2K",      -1,    0},
+	{ XK_Delete,        ShiftMask,      "\033[3;2~",    +1,    0},
+	{ XK_Delete,        XK_ANY_MOD,     "\033[P",       -1,    0},
+	{ XK_Delete,        XK_ANY_MOD,     "\033[3~",      +1,    0},
+	{ XK_BackSpace,     XK_NO_MOD,      "\177",          0,    0},
+	{ XK_BackSpace,     Mod1Mask,       "\033\177",      0,    0},
+	{ XK_Home,          ShiftMask,      "\033[2J",       0,   -1},
+	{ XK_Home,          ShiftMask,      "\033[1;2H",     0,   +1},
+	{ XK_Home,          XK_ANY_MOD,     "\033[H",        0,   -1},
+	{ XK_Home,          XK_ANY_MOD,     "\033[1~",       0,   +1},
+	{ XK_End,           ControlMask,    "\033[J",       -1,    0},
+	{ XK_End,           ControlMask,    "\033[1;5F",    +1,    0},
+	{ XK_End,           ShiftMask,      "\033[K",       -1,    0},
+	{ XK_End,           ShiftMask,      "\033[1;2F",    +1,    0},
+	{ XK_End,           XK_ANY_MOD,     "\033[4~",       0,    0},
+	{ XK_Prior,         ControlMask,    "\033[5;5~",     0,    0},
+	{ XK_Prior,         ShiftMask,      "\033[5;2~",     0,    0},
+	{ XK_Prior,         XK_ANY_MOD,     "\033[5~",       0,    0},
+	{ XK_Next,          ControlMask,    "\033[6;5~",     0,    0},
+	{ XK_Next,          ShiftMask,      "\033[6;2~",     0,    0},
+	{ XK_Next,          XK_ANY_MOD,     "\033[6~",       0,    0},
+	{ XK_F1,            XK_NO_MOD,      "\033OP" ,       0,    0},
+	{ XK_F1, /* F13 */  ShiftMask,      "\033[1;2P",     0,    0},
+	{ XK_F1, /* F25 */  ControlMask,    "\033[1;5P",     0,    0},
+	{ XK_F1, /* F37 */  Mod4Mask,       "\033[1;6P",     0,    0},
+	{ XK_F1, /* F49 */  Mod1Mask,       "\033[1;3P",     0,    0},
+	{ XK_F1, /* F61 */  Mod3Mask,       "\033[1;4P",     0,    0},
+	{ XK_F2,            XK_NO_MOD,      "\033OQ" ,       0,    0},
+	{ XK_F2, /* F14 */  ShiftMask,      "\033[1;2Q",     0,    0},
+	{ XK_F2, /* F26 */  ControlMask,    "\033[1;5Q",     0,    0},
+	{ XK_F2, /* F38 */  Mod4Mask,       "\033[1;6Q",     0,    0},
+	{ XK_F2, /* F50 */  Mod1Mask,       "\033[1;3Q",     0,    0},
+	{ XK_F2, /* F62 */  Mod3Mask,       "\033[1;4Q",     0,    0},
+	{ XK_F3,            XK_NO_MOD,      "\033OR" ,       0,    0},
+	{ XK_F3, /* F15 */  ShiftMask,      "\033[1;2R",     0,    0},
+	{ XK_F3, /* F27 */  ControlMask,    "\033[1;5R",     0,    0},
+	{ XK_F3, /* F39 */  Mod4Mask,       "\033[1;6R",     0,    0},
+	{ XK_F3, /* F51 */  Mod1Mask,       "\033[1;3R",     0,    0},
+	{ XK_F3, /* F63 */  Mod3Mask,       "\033[1;4R",     0,    0},
+	{ XK_F4,            XK_NO_MOD,      "\033OS" ,       0,    0},
+	{ XK_F4, /* F16 */  ShiftMask,      "\033[1;2S",     0,    0},
+	{ XK_F4, /* F28 */  ControlMask,    "\033[1;5S",     0,    0},
+	{ XK_F4, /* F40 */  Mod4Mask,       "\033[1;6S",     0,    0},
+	{ XK_F4, /* F52 */  Mod1Mask,       "\033[1;3S",     0,    0},
+	{ XK_F5,            XK_NO_MOD,      "\033[15~",      0,    0},
+	{ XK_F5, /* F17 */  ShiftMask,      "\033[15;2~",    0,    0},
+	{ XK_F5, /* F29 */  ControlMask,    "\033[15;5~",    0,    0},
+	{ XK_F5, /* F41 */  Mod4Mask,       "\033[15;6~",    0,    0},
+	{ XK_F5, /* F53 */  Mod1Mask,       "\033[15;3~",    0,    0},
+	{ XK_F6,            XK_NO_MOD,      "\033[17~",      0,    0},
+	{ XK_F6, /* F18 */  ShiftMask,      "\033[17;2~",    0,    0},
+	{ XK_F6, /* F30 */  ControlMask,    "\033[17;5~",    0,    0},
+	{ XK_F6, /* F42 */  Mod4Mask,       "\033[17;6~",    0,    0},
+	{ XK_F6, /* F54 */  Mod1Mask,       "\033[17;3~",    0,    0},
+	{ XK_F7,            XK_NO_MOD,      "\033[18~",      0,    0},
+	{ XK_F7, /* F19 */  ShiftMask,      "\033[18;2~",    0,    0},
+	{ XK_F7, /* F31 */  ControlMask,    "\033[18;5~",    0,    0},
+	{ XK_F7, /* F43 */  Mod4Mask,       "\033[18;6~",    0,    0},
+	{ XK_F7, /* F55 */  Mod1Mask,       "\033[18;3~",    0,    0},
+	{ XK_F8,            XK_NO_MOD,      "\033[19~",      0,    0},
+	{ XK_F8, /* F20 */  ShiftMask,      "\033[19;2~",    0,    0},
+	{ XK_F8, /* F32 */  ControlMask,    "\033[19;5~",    0,    0},
+	{ XK_F8, /* F44 */  Mod4Mask,       "\033[19;6~",    0,    0},
+	{ XK_F8, /* F56 */  Mod1Mask,       "\033[19;3~",    0,    0},
+	{ XK_F9,            XK_NO_MOD,      "\033[20~",      0,    0},
+	{ XK_F9, /* F21 */  ShiftMask,      "\033[20;2~",    0,    0},
+	{ XK_F9, /* F33 */  ControlMask,    "\033[20;5~",    0,    0},
+	{ XK_F9, /* F45 */  Mod4Mask,       "\033[20;6~",    0,    0},
+	{ XK_F9, /* F57 */  Mod1Mask,       "\033[20;3~",    0,    0},
+	{ XK_F10,           XK_NO_MOD,      "\033[21~",      0,    0},
+	{ XK_F10, /* F22 */ ShiftMask,      "\033[21;2~",    0,    0},
+	{ XK_F10, /* F34 */ ControlMask,    "\033[21;5~",    0,    0},
+	{ XK_F10, /* F46 */ Mod4Mask,       "\033[21;6~",    0,    0},
+	{ XK_F10, /* F58 */ Mod1Mask,       "\033[21;3~",    0,    0},
+	{ XK_F11,           XK_NO_MOD,      "\033[23~",      0,    0},
+	{ XK_F11, /* F23 */ ShiftMask,      "\033[23;2~",    0,    0},
+	{ XK_F11, /* F35 */ ControlMask,    "\033[23;5~",    0,    0},
+	{ XK_F11, /* F47 */ Mod4Mask,       "\033[23;6~",    0,    0},
+	{ XK_F11, /* F59 */ Mod1Mask,       "\033[23;3~",    0,    0},
+	{ XK_F12,           XK_NO_MOD,      "\033[24~",      0,    0},
+	{ XK_F12, /* F24 */ ShiftMask,      "\033[24;2~",    0,    0},
+	{ XK_F12, /* F36 */ ControlMask,    "\033[24;5~",    0,    0},
+	{ XK_F12, /* F48 */ Mod4Mask,       "\033[24;6~",    0,    0},
+	{ XK_F12, /* F60 */ Mod1Mask,       "\033[24;3~",    0,    0},
+	{ XK_F13,           XK_NO_MOD,      "\033[1;2P",     0,    0},
+	{ XK_F14,           XK_NO_MOD,      "\033[1;2Q",     0,    0},
+	{ XK_F15,           XK_NO_MOD,      "\033[1;2R",     0,    0},
+	{ XK_F16,           XK_NO_MOD,      "\033[1;2S",     0,    0},
+	{ XK_F17,           XK_NO_MOD,      "\033[15;2~",    0,    0},
+	{ XK_F18,           XK_NO_MOD,      "\033[17;2~",    0,    0},
+	{ XK_F19,           XK_NO_MOD,      "\033[18;2~",    0,    0},
+	{ XK_F20,           XK_NO_MOD,      "\033[19;2~",    0,    0},
+	{ XK_F21,           XK_NO_MOD,      "\033[20;2~",    0,    0},
+	{ XK_F22,           XK_NO_MOD,      "\033[21;2~",    0,    0},
+	{ XK_F23,           XK_NO_MOD,      "\033[23;2~",    0,    0},
+	{ XK_F24,           XK_NO_MOD,      "\033[24;2~",    0,    0},
+	{ XK_F25,           XK_NO_MOD,      "\033[1;5P",     0,    0},
+	{ XK_F26,           XK_NO_MOD,      "\033[1;5Q",     0,    0},
+	{ XK_F27,           XK_NO_MOD,      "\033[1;5R",     0,    0},
+	{ XK_F28,           XK_NO_MOD,      "\033[1;5S",     0,    0},
+	{ XK_F29,           XK_NO_MOD,      "\033[15;5~",    0,    0},
+	{ XK_F30,           XK_NO_MOD,      "\033[17;5~",    0,    0},
+	{ XK_F31,           XK_NO_MOD,      "\033[18;5~",    0,    0},
+	{ XK_F32,           XK_NO_MOD,      "\033[19;5~",    0,    0},
+	{ XK_F33,           XK_NO_MOD,      "\033[20;5~",    0,    0},
+	{ XK_F34,           XK_NO_MOD,      "\033[21;5~",    0,    0},
+	{ XK_F35,           XK_NO_MOD,      "\033[23;5~",    0,    0},
+};
+
+/*
+ * Selection types' masks.
+ * Use the same masks as usual.
+ * Button1Mask is always unset, to make masks match between ButtonPress.
+ * ButtonRelease and MotionNotify.
+ * If no match is found, regular selection is used.
+ */
+static uint selmasks[] = {
+	[SEL_RECTANGULAR] = Mod1Mask,
+};
+
+/*
+ * Printable characters in ASCII, used to estimate the advance width
+ * of single wide characters.
+ */
+static char ascii_printable[] =
+	" !\"#$%&'()*+,-./0123456789:;<=>?"
+	"@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_"
+	"`abcdefghijklmnopqrstuvwxyz{|}~";

config.mk

@@ -1,5 +1,5 @@
 # st version
-VERSION = 0.9
+VERSION = 0.9.2
 
 # Customize below to fit your system
 
@@ -16,7 +16,7 @@ PKG_CONFIG = pkg-config
 INCS = -I$(X11INC) \
        `$(PKG_CONFIG) --cflags fontconfig` \
        `$(PKG_CONFIG) --cflags freetype2`
-LIBS = -L$(X11LIB) -lm -lrt -lX11 -lutil -lXft \
+LIBS = -L$(X11LIB) -lm -lrt -lX11 -lutil -lXft -lXrender\
        `$(PKG_CONFIG) --libs fontconfig` \
        `$(PKG_CONFIG) --libs freetype2`
 

patches/st-alpha-20220206-0.8.5.diff

@@ -0,0 +1,146 @@
+diff --git a/config.def.h b/config.def.h
+index 91ab8ca..6af616e 100644
+--- a/config.def.h
++++ b/config.def.h
+@@ -93,6 +93,9 @@ char *termname = "st-256color";
+  */
+ unsigned int tabspaces = 8;
+ 
++/* bg opacity */
++float alpha = 0.8;
++
+ /* Terminal colors (16 first used in escape sequence) */
+ static const char *colorname[] = {
+ 	/* 8 normal colors */
+diff --git a/config.mk b/config.mk
+index 4c4c5d5..0114bad 100644
+--- a/config.mk
++++ b/config.mk
+@@ -16,7 +16,7 @@ PKG_CONFIG = pkg-config
+ INCS = -I$(X11INC) \
+        `$(PKG_CONFIG) --cflags fontconfig` \
+        `$(PKG_CONFIG) --cflags freetype2`
+-LIBS = -L$(X11LIB) -lm -lrt -lX11 -lutil -lXft \
++LIBS = -L$(X11LIB) -lm -lrt -lX11 -lutil -lXft -lXrender\
+        `$(PKG_CONFIG) --libs fontconfig` \
+        `$(PKG_CONFIG) --libs freetype2`
+ 
+diff --git a/st.h b/st.h
+index 519b9bd..8bb533d 100644
+--- a/st.h
++++ b/st.h
+@@ -126,3 +126,4 @@ extern unsigned int tabspaces;
+ extern unsigned int defaultfg;
+ extern unsigned int defaultbg;
+ extern unsigned int defaultcs;
++extern float alpha;
+diff --git a/x.c b/x.c
+index 8a16faa..ddf4178 100644
+--- a/x.c
++++ b/x.c
+@@ -105,6 +105,7 @@ typedef struct {
+ 	XSetWindowAttributes attrs;
+ 	int scr;
+ 	int isfixed; /* is fixed geometry? */
++	int depth; /* bit depth */
+ 	int l, t; /* left and top offset */
+ 	int gm; /* geometry mask */
+ } XWindow;
+@@ -243,6 +244,7 @@ static char *usedfont = NULL;
+ static double usedfontsize = 0;
+ static double defaultfontsize = 0;
+ 
++static char *opt_alpha = NULL;
+ static char *opt_class = NULL;
+ static char **opt_cmd  = NULL;
+ static char *opt_embed = NULL;
+@@ -736,7 +738,7 @@ xresize(int col, int row)
+ 
+ 	XFreePixmap(xw.dpy, xw.buf);
+ 	xw.buf = XCreatePixmap(xw.dpy, xw.win, win.w, win.h,
+-			DefaultDepth(xw.dpy, xw.scr));
++			xw.depth);
+ 	XftDrawChange(xw.draw, xw.buf);
+ 	xclear(0, 0, win.w, win.h);
+ 
+@@ -796,6 +798,13 @@ xloadcols(void)
+ 			else
+ 				die("could not allocate color %d\n", i);
+ 		}
++
++	/* set alpha value of bg color */
++	if (opt_alpha)
++		alpha = strtof(opt_alpha, NULL);
++	dc.col[defaultbg].color.alpha = (unsigned short)(0xffff * alpha);
++	dc.col[defaultbg].pixel &= 0x00FFFFFF;
++	dc.col[defaultbg].pixel |= (unsigned char)(0xff * alpha) << 24;
+ 	loaded = 1;
+ }
+ 
+@@ -1118,11 +1127,23 @@ xinit(int cols, int rows)
+ 	Window parent;
+ 	pid_t thispid = getpid();
+ 	XColor xmousefg, xmousebg;
++	XWindowAttributes attr;
++	XVisualInfo vis;
+ 
+ 	if (!(xw.dpy = XOpenDisplay(NULL)))
+ 		die("can't open display\n");
+ 	xw.scr = XDefaultScreen(xw.dpy);
+-	xw.vis = XDefaultVisual(xw.dpy, xw.scr);
++
++	if (!(opt_embed && (parent = strtol(opt_embed, NULL, 0)))) {
++		parent = XRootWindow(xw.dpy, xw.scr);
++		xw.depth = 32;
++	} else {
++		XGetWindowAttributes(xw.dpy, parent, &attr);
++		xw.depth = attr.depth;
++	}
++
++	XMatchVisualInfo(xw.dpy, xw.scr, xw.depth, TrueColor, &vis);
++	xw.vis = vis.visual;
+ 
+ 	/* font */
+ 	if (!FcInit())
+@@ -1132,7 +1153,7 @@ xinit(int cols, int rows)
+ 	xloadfonts(usedfont, 0);
+ 
+ 	/* colors */
+-	xw.cmap = XDefaultColormap(xw.dpy, xw.scr);
++	xw.cmap = XCreateColormap(xw.dpy, parent, xw.vis, None);
+ 	xloadcols();
+ 
+ 	/* adjust fixed window geometry */
+@@ -1152,19 +1173,15 @@ xinit(int cols, int rows)
+ 		| ButtonMotionMask | ButtonPressMask | ButtonReleaseMask;
+ 	xw.attrs.colormap = xw.cmap;
+ 
+-	if (!(opt_embed && (parent = strtol(opt_embed, NULL, 0))))
+-		parent = XRootWindow(xw.dpy, xw.scr);
+ 	xw.win = XCreateWindow(xw.dpy, parent, xw.l, xw.t,
+-			win.w, win.h, 0, XDefaultDepth(xw.dpy, xw.scr), InputOutput,
++			win.w, win.h, 0, xw.depth, InputOutput,
+ 			xw.vis, CWBackPixel | CWBorderPixel | CWBitGravity
+ 			| CWEventMask | CWColormap, &xw.attrs);
+ 
+ 	memset(&gcvalues, 0, sizeof(gcvalues));
+ 	gcvalues.graphics_exposures = False;
+-	dc.gc = XCreateGC(xw.dpy, parent, GCGraphicsExposures,
+-			&gcvalues);
+-	xw.buf = XCreatePixmap(xw.dpy, xw.win, win.w, win.h,
+-			DefaultDepth(xw.dpy, xw.scr));
++	xw.buf = XCreatePixmap(xw.dpy, xw.win, win.w, win.h, xw.depth);
++	dc.gc = XCreateGC(xw.dpy, xw.buf, GCGraphicsExposures, &gcvalues);
+ 	XSetForeground(xw.dpy, dc.gc, dc.col[defaultbg].pixel);
+ 	XFillRectangle(xw.dpy, xw.buf, dc.gc, 0, 0, win.w, win.h);
+ 
+@@ -2019,6 +2036,9 @@ main(int argc, char *argv[])
+ 	case 'a':
+ 		allowaltscreen = 0;
+ 		break;
++	case 'A':
++		opt_alpha = EARGF(usage());
++		break;
+ 	case 'c':
+ 		opt_class = EARGF(usage());
+ 		break;

patches/st-boxdraw_v2-0.8.5.diff

@@ -0,0 +1,583 @@
+From 46a1124957b8de5e7f827656b64bfc3baeaa097f Mon Sep 17 00:00:00 2001
+From: wael <40663@protonmail.com>
+Date: Mon, 11 Apr 2022 17:04:30 +0300
+Subject: [PATCH] [st][patch][boxdraw] update to 0.8.5
+
+---
+ Makefile       |   3 +-
+ boxdraw.c      | 194 ++++++++++++++++++++++++++++++++++++++++++++
+ boxdraw_data.h | 214 +++++++++++++++++++++++++++++++++++++++++++++++++
+ config.def.h   |  12 +++
+ st.c           |   3 +
+ st.h           |  10 +++
+ x.c            |  21 +++--
+ 7 files changed, 451 insertions(+), 6 deletions(-)
+ create mode 100644 boxdraw.c
+ create mode 100644 boxdraw_data.h
+
+diff --git a/Makefile b/Makefile
+index 470ac86..6dfa212 100644
+--- a/Makefile
++++ b/Makefile
+@@ -4,7 +4,7 @@
+ 
+ include config.mk
+ 
+-SRC = st.c x.c
++SRC = st.c x.c boxdraw.c
+ OBJ = $(SRC:.c=.o)
+ 
+ all: options st
+@@ -23,6 +23,7 @@ config.h:
+ 
+ st.o: config.h st.h win.h
+ x.o: arg.h config.h st.h win.h
++boxdraw.o: config.h st.h boxdraw_data.h
+ 
+ $(OBJ): config.h config.mk
+ 
+diff --git a/boxdraw.c b/boxdraw.c
+new file mode 100644
+index 0000000..28a92d0
+--- /dev/null
++++ b/boxdraw.c
+@@ -0,0 +1,194 @@
++/*
++ * Copyright 2018 Avi Halachmi (:avih) avihpit@yahoo.com https://github.com/avih
++ * MIT/X Consortium License
++ */
++
++#include <X11/Xft/Xft.h>
++#include "st.h"
++#include "boxdraw_data.h"
++
++/* Rounded non-negative integers division of n / d  */
++#define DIV(n, d) (((n) + (d) / 2) / (d))
++
++static Display *xdpy;
++static Colormap xcmap;
++static XftDraw *xd;
++static Visual *xvis;
++
++static void drawbox(int, int, int, int, XftColor *, XftColor *, ushort);
++static void drawboxlines(int, int, int, int, XftColor *, ushort);
++
++/* public API */
++
++void
++boxdraw_xinit(Display *dpy, Colormap cmap, XftDraw *draw, Visual *vis)
++{
++	xdpy = dpy; xcmap = cmap; xd = draw, xvis = vis;
++}
++
++int
++isboxdraw(Rune u)
++{
++	Rune block = u & ~0xff;
++	return (boxdraw && block == 0x2500 && boxdata[(uint8_t)u]) ||
++	       (boxdraw_braille && block == 0x2800);
++}
++
++/* the "index" is actually the entire shape data encoded as ushort */
++ushort
++boxdrawindex(const Glyph *g)
++{
++	if (boxdraw_braille && (g->u & ~0xff) == 0x2800)
++		return BRL | (uint8_t)g->u;
++	if (boxdraw_bold && (g->mode & ATTR_BOLD))
++		return BDB | boxdata[(uint8_t)g->u];
++	return boxdata[(uint8_t)g->u];
++}
++
++void
++drawboxes(int x, int y, int cw, int ch, XftColor *fg, XftColor *bg,
++          const XftGlyphFontSpec *specs, int len)
++{
++	for ( ; len-- > 0; x += cw, specs++)
++		drawbox(x, y, cw, ch, fg, bg, (ushort)specs->glyph);
++}
++
++/* implementation */
++
++void
++drawbox(int x, int y, int w, int h, XftColor *fg, XftColor *bg, ushort bd)
++{
++	ushort cat = bd & ~(BDB | 0xff);  /* mask out bold and data */
++	if (bd & (BDL | BDA)) {
++		/* lines (light/double/heavy/arcs) */
++		drawboxlines(x, y, w, h, fg, bd);
++
++	} else if (cat == BBD) {
++		/* lower (8-X)/8 block */
++		int d = DIV((uint8_t)bd * h, 8);
++		XftDrawRect(xd, fg, x, y + d, w, h - d);
++
++	} else if (cat == BBU) {
++		/* upper X/8 block */
++		XftDrawRect(xd, fg, x, y, w, DIV((uint8_t)bd * h, 8));
++
++	} else if (cat == BBL) {
++		/* left X/8 block */
++		XftDrawRect(xd, fg, x, y, DIV((uint8_t)bd * w, 8), h);
++
++	} else if (cat == BBR) {
++		/* right (8-X)/8 block */
++		int d = DIV((uint8_t)bd * w, 8);
++		XftDrawRect(xd, fg, x + d, y, w - d, h);
++
++	} else if (cat == BBQ) {
++		/* Quadrants */
++		int w2 = DIV(w, 2), h2 = DIV(h, 2);
++		if (bd & TL)
++			XftDrawRect(xd, fg, x, y, w2, h2);
++		if (bd & TR)
++			XftDrawRect(xd, fg, x + w2, y, w - w2, h2);
++		if (bd & BL)
++			XftDrawRect(xd, fg, x, y + h2, w2, h - h2);
++		if (bd & BR)
++			XftDrawRect(xd, fg, x + w2, y + h2, w - w2, h - h2);
++
++	} else if (bd & BBS) {
++		/* Shades - data is 1/2/3 for 25%/50%/75% alpha, respectively */
++		int d = (uint8_t)bd;
++		XftColor xfc;
++		XRenderColor xrc = { .alpha = 0xffff };
++
++		xrc.red = DIV(fg->color.red * d + bg->color.red * (4 - d), 4);
++		xrc.green = DIV(fg->color.green * d + bg->color.green * (4 - d), 4);
++		xrc.blue = DIV(fg->color.blue * d + bg->color.blue * (4 - d), 4);
++
++		XftColorAllocValue(xdpy, xvis, xcmap, &xrc, &xfc);
++		XftDrawRect(xd, &xfc, x, y, w, h);
++		XftColorFree(xdpy, xvis, xcmap, &xfc);
++
++	} else if (cat == BRL) {
++		/* braille, each data bit corresponds to one dot at 2x4 grid */
++		int w1 = DIV(w, 2);
++		int h1 = DIV(h, 4), h2 = DIV(h, 2), h3 = DIV(3 * h, 4);
++
++		if (bd & 1)   XftDrawRect(xd, fg, x, y, w1, h1);
++		if (bd & 2)   XftDrawRect(xd, fg, x, y + h1, w1, h2 - h1);
++		if (bd & 4)   XftDrawRect(xd, fg, x, y + h2, w1, h3 - h2);
++		if (bd & 8)   XftDrawRect(xd, fg, x + w1, y, w - w1, h1);
++		if (bd & 16)  XftDrawRect(xd, fg, x + w1, y + h1, w - w1, h2 - h1);
++		if (bd & 32)  XftDrawRect(xd, fg, x + w1, y + h2, w - w1, h3 - h2);
++		if (bd & 64)  XftDrawRect(xd, fg, x, y + h3, w1, h - h3);
++		if (bd & 128) XftDrawRect(xd, fg, x + w1, y + h3, w - w1, h - h3);
++
++	}
++}
++
++void
++drawboxlines(int x, int y, int w, int h, XftColor *fg, ushort bd)
++{
++	/* s: stem thickness. width/8 roughly matches underscore thickness. */
++	/* We draw bold as 1.5 * normal-stem and at least 1px thicker.      */
++	/* doubles draw at least 3px, even when w or h < 3. bold needs 6px. */
++	int mwh = MIN(w, h);
++	int base_s = MAX(1, DIV(mwh, 8));
++	int bold = (bd & BDB) && mwh >= 6;  /* possibly ignore boldness */
++	int s = bold ? MAX(base_s + 1, DIV(3 * base_s, 2)) : base_s;
++	int w2 = DIV(w - s, 2), h2 = DIV(h - s, 2);
++	/* the s-by-s square (x + w2, y + h2, s, s) is the center texel.    */
++	/* The base length (per direction till edge) includes this square.  */
++
++	int light = bd & (LL | LU | LR | LD);
++	int double_ = bd & (DL | DU | DR | DD);
++
++	if (light) {
++		/* d: additional (negative) length to not-draw the center   */
++		/* texel - at arcs and avoid drawing inside (some) doubles  */
++		int arc = bd & BDA;
++		int multi_light = light & (light - 1);
++		int multi_double = double_ & (double_ - 1);
++		/* light crosses double only at DH+LV, DV+LH (ref. shapes)  */
++		int d = arc || (multi_double && !multi_light) ? -s : 0;
++
++		if (bd & LL)
++			XftDrawRect(xd, fg, x, y + h2, w2 + s + d, s);
++		if (bd & LU)
++			XftDrawRect(xd, fg, x + w2, y, s, h2 + s + d);
++		if (bd & LR)
++			XftDrawRect(xd, fg, x + w2 - d, y + h2, w - w2 + d, s);
++		if (bd & LD)
++			XftDrawRect(xd, fg, x + w2, y + h2 - d, s, h - h2 + d);
++	}
++
++	/* double lines - also align with light to form heavy when combined */
++	if (double_) {
++		/*
++		* going clockwise, for each double-ray: p is additional length
++		* to the single-ray nearer to the previous direction, and n to
++		* the next. p and n adjust from the base length to lengths
++		* which consider other doubles - shorter to avoid intersections
++		* (p, n), or longer to draw the far-corner texel (n).
++		*/
++		int dl = bd & DL, du = bd & DU, dr = bd & DR, dd = bd & DD;
++		if (dl) {
++			int p = dd ? -s : 0, n = du ? -s : dd ? s : 0;
++			XftDrawRect(xd, fg, x, y + h2 + s, w2 + s + p, s);
++			XftDrawRect(xd, fg, x, y + h2 - s, w2 + s + n, s);
++		}
++		if (du) {
++			int p = dl ? -s : 0, n = dr ? -s : dl ? s : 0;
++			XftDrawRect(xd, fg, x + w2 - s, y, s, h2 + s + p);
++			XftDrawRect(xd, fg, x + w2 + s, y, s, h2 + s + n);
++		}
++		if (dr) {
++			int p = du ? -s : 0, n = dd ? -s : du ? s : 0;
++			XftDrawRect(xd, fg, x + w2 - p, y + h2 - s, w - w2 + p, s);
++			XftDrawRect(xd, fg, x + w2 - n, y + h2 + s, w - w2 + n, s);
++		}
++		if (dd) {
++			int p = dr ? -s : 0, n = dl ? -s : dr ? s : 0;
++			XftDrawRect(xd, fg, x + w2 + s, y + h2 - p, s, h - h2 + p);
++			XftDrawRect(xd, fg, x + w2 - s, y + h2 - n, s, h - h2 + n);
++		}
++	}
++}
+diff --git a/boxdraw_data.h b/boxdraw_data.h
+new file mode 100644
+index 0000000..7890500
+--- /dev/null
++++ b/boxdraw_data.h
+@@ -0,0 +1,214 @@
++/*
++ * Copyright 2018 Avi Halachmi (:avih) avihpit@yahoo.com https://github.com/avih
++ * MIT/X Consortium License
++ */
++
++/*
++ * U+25XX codepoints data
++ *
++ * References:
++ *   http://www.unicode.org/charts/PDF/U2500.pdf
++ *   http://www.unicode.org/charts/PDF/U2580.pdf
++ *
++ * Test page:
++ *   https://github.com/GNOME/vte/blob/master/doc/boxes.txt
++ */
++
++/* Each shape is encoded as 16-bits. Higher bits are category, lower are data */
++/* Categories (mutually exclusive except BDB): */
++/* For convenience, BDL/BDA/BBS/BDB are 1 bit each, the rest are enums */
++#define BDL (1<<8)   /* Box Draw Lines (light/double/heavy) */
++#define BDA (1<<9)   /* Box Draw Arc (light) */
++
++#define BBD (1<<10)  /* Box Block Down (lower) X/8 */
++#define BBL (2<<10)  /* Box Block Left X/8 */
++#define BBU (3<<10)  /* Box Block Upper X/8 */
++#define BBR (4<<10)  /* Box Block Right X/8 */
++#define BBQ (5<<10)  /* Box Block Quadrants */
++#define BRL (6<<10)  /* Box Braille (data is lower byte of U28XX) */
++
++#define BBS (1<<14)  /* Box Block Shades */
++#define BDB (1<<15)  /* Box Draw is Bold */
++
++/* (BDL/BDA) Light/Double/Heavy x Left/Up/Right/Down/Horizontal/Vertical      */
++/* Heavy is light+double (literally drawing light+double align to form heavy) */
++#define LL (1<<0)
++#define LU (1<<1)
++#define LR (1<<2)
++#define LD (1<<3)
++#define LH (LL+LR)
++#define LV (LU+LD)
++
++#define DL (1<<4)
++#define DU (1<<5)
++#define DR (1<<6)
++#define DD (1<<7)
++#define DH (DL+DR)
++#define DV (DU+DD)
++
++#define HL (LL+DL)
++#define HU (LU+DU)
++#define HR (LR+DR)
++#define HD (LD+DD)
++#define HH (HL+HR)
++#define HV (HU+HD)
++
++/* (BBQ) Quadrants Top/Bottom x Left/Right */
++#define TL (1<<0)
++#define TR (1<<1)
++#define BL (1<<2)
++#define BR (1<<3)
++
++/* Data for U+2500 - U+259F except dashes/diagonals */
++static const unsigned short boxdata[256] = {
++	/* light lines */
++	[0x00] = BDL + LH,       /* light horizontal */
++	[0x02] = BDL + LV,       /* light vertical */
++	[0x0c] = BDL + LD + LR,  /* light down and right */
++	[0x10] = BDL + LD + LL,  /* light down and left */
++	[0x14] = BDL + LU + LR,  /* light up and right */
++	[0x18] = BDL + LU + LL,  /* light up and left */
++	[0x1c] = BDL + LV + LR,  /* light vertical and right */
++	[0x24] = BDL + LV + LL,  /* light vertical and left */
++	[0x2c] = BDL + LH + LD,  /* light horizontal and down */
++	[0x34] = BDL + LH + LU,  /* light horizontal and up */
++	[0x3c] = BDL + LV + LH,  /* light vertical and horizontal */
++	[0x74] = BDL + LL,       /* light left */
++	[0x75] = BDL + LU,       /* light up */
++	[0x76] = BDL + LR,       /* light right */
++	[0x77] = BDL + LD,       /* light down */
++
++	/* heavy [+light] lines */
++	[0x01] = BDL + HH,
++	[0x03] = BDL + HV,
++	[0x0d] = BDL + HR + LD,
++	[0x0e] = BDL + HD + LR,
++	[0x0f] = BDL + HD + HR,
++	[0x11] = BDL + HL + LD,
++	[0x12] = BDL + HD + LL,
++	[0x13] = BDL + HD + HL,
++	[0x15] = BDL + HR + LU,
++	[0x16] = BDL + HU + LR,
++	[0x17] = BDL + HU + HR,
++	[0x19] = BDL + HL + LU,
++	[0x1a] = BDL + HU + LL,
++	[0x1b] = BDL + HU + HL,
++	[0x1d] = BDL + HR + LV,
++	[0x1e] = BDL + HU + LD + LR,
++	[0x1f] = BDL + HD + LR + LU,
++	[0x20] = BDL + HV + LR,
++	[0x21] = BDL + HU + HR + LD,
++	[0x22] = BDL + HD + HR + LU,
++	[0x23] = BDL + HV + HR,
++	[0x25] = BDL + HL + LV,
++	[0x26] = BDL + HU + LD + LL,
++	[0x27] = BDL + HD + LU + LL,
++	[0x28] = BDL + HV + LL,
++	[0x29] = BDL + HU + HL + LD,
++	[0x2a] = BDL + HD + HL + LU,
++	[0x2b] = BDL + HV + HL,
++	[0x2d] = BDL + HL + LD + LR,
++	[0x2e] = BDL + HR + LL + LD,
++	[0x2f] = BDL + HH + LD,
++	[0x30] = BDL + HD + LH,
++	[0x31] = BDL + HD + HL + LR,
++	[0x32] = BDL + HR + HD + LL,
++	[0x33] = BDL + HH + HD,
++	[0x35] = BDL + HL + LU + LR,
++	[0x36] = BDL + HR + LU + LL,
++	[0x37] = BDL + HH + LU,
++	[0x38] = BDL + HU + LH,
++	[0x39] = BDL + HU + HL + LR,
++	[0x3a] = BDL + HU + HR + LL,
++	[0x3b] = BDL + HH + HU,
++	[0x3d] = BDL + HL + LV + LR,
++	[0x3e] = BDL + HR + LV + LL,
++	[0x3f] = BDL + HH + LV,
++	[0x40] = BDL + HU + LH + LD,
++	[0x41] = BDL + HD + LH + LU,
++	[0x42] = BDL + HV + LH,
++	[0x43] = BDL + HU + HL + LD + LR,
++	[0x44] = BDL + HU + HR + LD + LL,
++	[0x45] = BDL + HD + HL + LU + LR,
++	[0x46] = BDL + HD + HR + LU + LL,
++	[0x47] = BDL + HH + HU + LD,
++	[0x48] = BDL + HH + HD + LU,
++	[0x49] = BDL + HV + HL + LR,
++	[0x4a] = BDL + HV + HR + LL,
++	[0x4b] = BDL + HV + HH,
++	[0x78] = BDL + HL,
++	[0x79] = BDL + HU,
++	[0x7a] = BDL + HR,
++	[0x7b] = BDL + HD,
++	[0x7c] = BDL + HR + LL,
++	[0x7d] = BDL + HD + LU,
++	[0x7e] = BDL + HL + LR,
++	[0x7f] = BDL + HU + LD,
++
++	/* double [+light] lines */
++	[0x50] = BDL + DH,
++	[0x51] = BDL + DV,
++	[0x52] = BDL + DR + LD,
++	[0x53] = BDL + DD + LR,
++	[0x54] = BDL + DR + DD,
++	[0x55] = BDL + DL + LD,
++	[0x56] = BDL + DD + LL,
++	[0x57] = BDL + DL + DD,
++	[0x58] = BDL + DR + LU,
++	[0x59] = BDL + DU + LR,
++	[0x5a] = BDL + DU + DR,
++	[0x5b] = BDL + DL + LU,
++	[0x5c] = BDL + DU + LL,
++	[0x5d] = BDL + DL + DU,
++	[0x5e] = BDL + DR + LV,
++	[0x5f] = BDL + DV + LR,
++	[0x60] = BDL + DV + DR,
++	[0x61] = BDL + DL + LV,
++	[0x62] = BDL + DV + LL,
++	[0x63] = BDL + DV + DL,
++	[0x64] = BDL + DH + LD,
++	[0x65] = BDL + DD + LH,
++	[0x66] = BDL + DD + DH,
++	[0x67] = BDL + DH + LU,
++	[0x68] = BDL + DU + LH,
++	[0x69] = BDL + DH + DU,
++	[0x6a] = BDL + DH + LV,
++	[0x6b] = BDL + DV + LH,
++	[0x6c] = BDL + DH + DV,
++
++	/* (light) arcs */
++	[0x6d] = BDA + LD + LR,
++	[0x6e] = BDA + LD + LL,
++	[0x6f] = BDA + LU + LL,
++	[0x70] = BDA + LU + LR,
++
++	/* Lower (Down) X/8 block (data is 8 - X) */
++	[0x81] = BBD + 7, [0x82] = BBD + 6, [0x83] = BBD + 5, [0x84] = BBD + 4,
++	[0x85] = BBD + 3, [0x86] = BBD + 2, [0x87] = BBD + 1, [0x88] = BBD + 0,
++
++	/* Left X/8 block (data is X) */
++	[0x89] = BBL + 7, [0x8a] = BBL + 6, [0x8b] = BBL + 5, [0x8c] = BBL + 4,
++	[0x8d] = BBL + 3, [0x8e] = BBL + 2, [0x8f] = BBL + 1,
++
++	/* upper 1/2 (4/8), 1/8 block (X), right 1/2, 1/8 block (8-X) */
++	[0x80] = BBU + 4, [0x94] = BBU + 1,
++	[0x90] = BBR + 4, [0x95] = BBR + 7,
++
++	/* Quadrants */
++	[0x96] = BBQ + BL,
++	[0x97] = BBQ + BR,
++	[0x98] = BBQ + TL,
++	[0x99] = BBQ + TL + BL + BR,
++	[0x9a] = BBQ + TL + BR,
++	[0x9b] = BBQ + TL + TR + BL,
++	[0x9c] = BBQ + TL + TR + BR,
++	[0x9d] = BBQ + TR,
++	[0x9e] = BBQ + BL + TR,
++	[0x9f] = BBQ + BL + TR + BR,
++
++	/* Shades, data is an alpha value in 25% units (1/4, 1/2, 3/4) */
++	[0x91] = BBS + 1, [0x92] = BBS + 2, [0x93] = BBS + 3,
++
++	/* U+2504 - U+250B, U+254C - U+254F: unsupported (dashes) */
++	/* U+2571 - U+2573: unsupported (diagonals) */
++};
+diff --git a/config.def.h b/config.def.h
+index 91ab8ca..7bb3ff7 100644
+--- a/config.def.h
++++ b/config.def.h
+@@ -67,6 +67,18 @@ static unsigned int blinktimeout = 800;
+  */
+ static unsigned int cursorthickness = 2;
+ 
++/*
++ * 1: render most of the lines/blocks characters without using the font for
++ *    perfect alignment between cells (U2500 - U259F except dashes/diagonals).
++ *    Bold affects lines thickness if boxdraw_bold is not 0. Italic is ignored.
++ * 0: disable (render all U25XX glyphs normally from the font).
++ */
++const int boxdraw = 0;
++const int boxdraw_bold = 0;
++
++/* braille (U28XX):  1: render as adjacent "pixels",  0: use font */
++const int boxdraw_braille = 0;
++
+ /*
+  * bell volume. It must be a value between -100 and 100. Use 0 for disabling
+  * it
+diff --git a/st.c b/st.c
+index f43cfd3..baa2bed 100644
+--- a/st.c
++++ b/st.c
+@@ -1214,6 +1214,9 @@ tsetchar(Rune u, const Glyph *attr, int x, int y)
+ 	term.dirty[y] = 1;
+ 	term.line[y][x] = *attr;
+ 	term.line[y][x].u = u;
++
++	if (isboxdraw(u))
++		term.line[y][x].mode |= ATTR_BOXDRAW;
+ }
+ 
+ void
+diff --git a/st.h b/st.h
+index 519b9bd..07a7c66 100644
+--- a/st.h
++++ b/st.h
+@@ -33,6 +33,7 @@ enum glyph_attribute {
+ 	ATTR_WRAP       = 1 << 8,
+ 	ATTR_WIDE       = 1 << 9,
+ 	ATTR_WDUMMY     = 1 << 10,
++	ATTR_BOXDRAW    = 1 << 11,
+ 	ATTR_BOLD_FAINT = ATTR_BOLD | ATTR_FAINT,
+ };
+ 
+@@ -113,6 +114,14 @@ char *xstrdup(const char *);
+ 
+ int xgetcolor(int x, unsigned char *r, unsigned char *g, unsigned char *b);
+ 
++int isboxdraw(Rune);
++ushort boxdrawindex(const Glyph *);
++#ifdef XFT_VERSION
++/* only exposed to x.c, otherwise we'll need Xft.h for the types */
++void boxdraw_xinit(Display *, Colormap, XftDraw *, Visual *);
++void drawboxes(int, int, int, int, XftColor *, XftColor *, const XftGlyphFontSpec *, int);
++#endif
++
+ /* config.h globals */
+ extern char *utmp;
+ extern char *scroll;
+@@ -126,3 +135,4 @@ extern unsigned int tabspaces;
+ extern unsigned int defaultfg;
+ extern unsigned int defaultbg;
+ extern unsigned int defaultcs;
++extern const int boxdraw, boxdraw_bold, boxdraw_braille;
+diff --git a/x.c b/x.c
+index 2a3bd38..bf6bbf9 100644
+--- a/x.c
++++ b/x.c
+@@ -1237,6 +1237,8 @@ xinit(int cols, int rows)
+ 	xsel.xtarget = XInternAtom(xw.dpy, "UTF8_STRING", 0);
+ 	if (xsel.xtarget == None)
+ 		xsel.xtarget = XA_STRING;
++
++	boxdraw_xinit(xw.dpy, xw.cmap, xw.draw, xw.vis);
+ }
+ 
+ int
+@@ -1283,8 +1285,13 @@ xmakeglyphfontspecs(XftGlyphFontSpec *specs, const Glyph *glyphs, int len, int x
+ 			yp = winy + font->ascent;
+ 		}
+ 
+-		/* Lookup character index with default font. */
+-		glyphidx = XftCharIndex(xw.dpy, font->match, rune);
++		if (mode & ATTR_BOXDRAW) {
++			/* minor shoehorning: boxdraw uses only this ushort */
++			glyphidx = boxdrawindex(&glyphs[i]);
++		} else {
++			/* Lookup character index with default font. */
++			glyphidx = XftCharIndex(xw.dpy, font->match, rune);
++		}
+ 		if (glyphidx) {
+ 			specs[numspecs].font = font->match;
+ 			specs[numspecs].glyph = glyphidx;
+@@ -1488,8 +1495,12 @@ xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, int x, i
+ 	r.width = width;
+ 	XftDrawSetClipRectangles(xw.draw, winx, winy, &r, 1);
+ 
+-	/* Render the glyphs. */
+-	XftDrawGlyphFontSpec(xw.draw, fg, specs, len);
++	if (base.mode & ATTR_BOXDRAW) {
++		drawboxes(winx, winy, width / len, win.ch, fg, bg, specs, len);
++	} else {
++		/* Render the glyphs. */
++		XftDrawGlyphFontSpec(xw.draw, fg, specs, len);
++	}
+ 
+ 	/* Render underline and strikethrough. */
+ 	if (base.mode & ATTR_UNDERLINE) {
+@@ -1532,7 +1543,7 @@ xdrawcursor(int cx, int cy, Glyph g, int ox, int oy, Glyph og)
+ 	/*
+ 	 * Select the right color for the right mode.
+ 	 */
+-	g.mode &= ATTR_BOLD|ATTR_ITALIC|ATTR_UNDERLINE|ATTR_STRUCK|ATTR_WIDE;
++	g.mode &= ATTR_BOLD|ATTR_ITALIC|ATTR_UNDERLINE|ATTR_STRUCK|ATTR_WIDE|ATTR_BOXDRAW;
+ 
+ 	if (IS_SET(MODE_REVERSE)) {
+ 		g.mode |= ATTR_REVERSE;
+-- 
+2.35.1
+

patches/st-changealpha-20230519-b44f2ad.diff

@@ -0,0 +1,80 @@
+diff --git a/config.def.h b/config.def.h
+index 91ab8ca..8a06176 100644
+--- a/config.def.h
++++ b/config.def.h
+@@ -93,6 +93,9 @@ char *termname = "st-256color";
+  */
+ unsigned int tabspaces = 8;
+ 
++/* Background opacity */
++float alpha_def;
++
+ /* Terminal colors (16 first used in escape sequence) */
+ static const char *colorname[] = {
+ 	/* 8 normal colors */
+@@ -201,6 +204,9 @@ static Shortcut shortcuts[] = {
+ 	{ TERMMOD,              XK_Y,           selpaste,       {.i =  0} },
+ 	{ ShiftMask,            XK_Insert,      selpaste,       {.i =  0} },
+ 	{ TERMMOD,              XK_Num_Lock,    numlock,        {.i =  0} },
++	{ MODKEY,               XK_bracketleft, chgalpha,       {.f = -1} }, /* Decrease opacity */
++	{ MODKEY|ShiftMask,     XK_braceright,  chgalpha,       {.f = +1} }, /* Increase opacity */
++	{ MODKEY,               XK_bracketright,chgalpha,       {.f =  0} }, /* Reset opacity */
+ };
+ 
+ /*
+diff --git a/st.h b/st.h
+index fd3b0d8..3bb587e 100644
+--- a/st.h
++++ b/st.h
+@@ -124,3 +124,4 @@ extern unsigned int tabspaces;
+ extern unsigned int defaultfg;
+ extern unsigned int defaultbg;
+ extern unsigned int defaultcs;
++extern float alpha_def;
+diff --git a/x.c b/x.c
+index aa09997..f8c8c1a 100644
+--- a/x.c
++++ b/x.c
+@@ -59,6 +59,7 @@ static void zoom(const Arg *);
+ static void zoomabs(const Arg *);
+ static void zoomreset(const Arg *);
+ static void ttysend(const Arg *);
++static void chgalpha(const Arg *);
+ 
+ /* config.h for applying patches and the configuration. */
+ #include "config.h"
+@@ -1147,6 +1148,9 @@ xinit(int cols, int rows)
+ 	usedfont = (opt_font == NULL)? font : opt_font;
+ 	xloadfonts(usedfont, 0);
+ 
++   /* Backup default alpha value */
++   alpha_def = alpha;
++
+ 	/* colors */
+ 	xw.cmap = XDefaultColormap(xw.dpy, xw.scr);
+ 	xloadcols();
+@@ -1371,6 +1375,24 @@ xmakeglyphfontspecs(XftGlyphFontSpec *specs, const Glyph *glyphs, int len, int x
+ 	return numspecs;
+ }
+ 
++void
++chgalpha(const Arg *arg)
++{
++   if (arg->f == -1.0f && alpha >= 0.1f)
++      alpha -= 0.1f;
++   else if (arg->f == 1.0f && alpha < 1.0f)
++      alpha += 0.1f;
++   else if (arg->f == 0.0f)
++      alpha = alpha_def;
++   else
++      return;
++
++   dc.col[defaultbg].color.alpha = (unsigned short)(0xFFFF * alpha);
++   /* Required to remove artifacting from borderpx */
++   cresize(0, 0);
++   redraw();
++}
++
+ void
+ xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, int x, int y)
+ {

patches/st-font2-0.8.5.diff

@@ -0,0 +1,163 @@
+From 1635e04d3643dd4caa0c7c2043b585c6d7e4705f Mon Sep 17 00:00:00 2001
+From: Rizqi Nur Assyaufi <bandithijo@gmail.com>
+Date: Mon, 18 Jul 2022 01:15:45 +0800
+Subject: [PATCH] [st][patch][font2] Add patch for st-0.8.5
+
+---
+ config.def.h |   6 +++
+ x.c          | 101 +++++++++++++++++++++++++++++++++++++++++++++++++++
+ 2 files changed, 107 insertions(+)
+
+diff --git a/config.def.h b/config.def.h
+index 91ab8ca..717b2f0 100644
+--- a/config.def.h
++++ b/config.def.h
+@@ -6,6 +6,12 @@
+  * font: see http://freedesktop.org/software/fontconfig/fontconfig-user.html
+  */
+ static char *font = "Liberation Mono:pixelsize=12:antialias=true:autohint=true";
++/* Spare fonts */
++static char *font2[] = {
++/*	"Inconsolata for Powerline:pixelsize=12:antialias=true:autohint=true", */
++/*	"Hack Nerd Font Mono:pixelsize=11:antialias=true:autohint=true", */
++};
++
+ static int borderpx = 2;
+
+ /*
+diff --git a/x.c b/x.c
+index 8a16faa..220fc4f 100644
+--- a/x.c
++++ b/x.c
+@@ -157,6 +157,8 @@ static void xhints(void);
+ static int xloadcolor(int, const char *, Color *);
+ static int xloadfont(Font *, FcPattern *);
+ static void xloadfonts(const char *, double);
++static int xloadsparefont(FcPattern *, int);
++static void xloadsparefonts(void);
+ static void xunloadfont(Font *);
+ static void xunloadfonts(void);
+ static void xsetenv(void);
+@@ -306,6 +308,7 @@ zoomabs(const Arg *arg)
+ {
+ 	xunloadfonts();
+ 	xloadfonts(usedfont, arg->f);
++	xloadsparefonts();
+ 	cresize(0, 0);
+ 	redraw();
+ 	xhints();
+@@ -1034,6 +1037,101 @@ xloadfonts(const char *fontstr, double fontsize)
+ 	FcPatternDestroy(pattern);
+ }
+
++int
++xloadsparefont(FcPattern *pattern, int flags)
++{
++	FcPattern *match;
++	FcResult result;
++
++	match = FcFontMatch(NULL, pattern, &result);
++	if (!match) {
++		return 1;
++	}
++
++	if (!(frc[frclen].font = XftFontOpenPattern(xw.dpy, match))) {
++		FcPatternDestroy(match);
++		return 1;
++	}
++
++	frc[frclen].flags = flags;
++	/* Believe U+0000 glyph will present in each default font */
++	frc[frclen].unicodep = 0;
++	frclen++;
++
++	return 0;
++}
++
++void
++xloadsparefonts(void)
++{
++	FcPattern *pattern;
++	double sizeshift, fontval;
++	int fc;
++	char **fp;
++
++	if (frclen != 0)
++		die("can't embed spare fonts. cache isn't empty");
++
++	/* Calculate count of spare fonts */
++	fc = sizeof(font2) / sizeof(*font2);
++	if (fc == 0)
++		return;
++
++	/* Allocate memory for cache entries. */
++	if (frccap < 4 * fc) {
++		frccap += 4 * fc - frccap;
++		frc = xrealloc(frc, frccap * sizeof(Fontcache));
++	}
++
++	for (fp = font2; fp - font2 < fc; ++fp) {
++
++		if (**fp == '-')
++			pattern = XftXlfdParse(*fp, False, False);
++		else
++			pattern = FcNameParse((FcChar8 *)*fp);
++
++		if (!pattern)
++			die("can't open spare font %s\n", *fp);
++
++		if (defaultfontsize > 0) {
++			sizeshift = usedfontsize - defaultfontsize;
++			if (sizeshift != 0 &&
++					FcPatternGetDouble(pattern, FC_PIXEL_SIZE, 0, &fontval) ==
++					FcResultMatch) {
++				fontval += sizeshift;
++				FcPatternDel(pattern, FC_PIXEL_SIZE);
++				FcPatternDel(pattern, FC_SIZE);
++				FcPatternAddDouble(pattern, FC_PIXEL_SIZE, fontval);
++			}
++		}
++
++		FcPatternAddBool(pattern, FC_SCALABLE, 1);
++
++		FcConfigSubstitute(NULL, pattern, FcMatchPattern);
++		XftDefaultSubstitute(xw.dpy, xw.scr, pattern);
++
++		if (xloadsparefont(pattern, FRC_NORMAL))
++			die("can't open spare font %s\n", *fp);
++
++		FcPatternDel(pattern, FC_SLANT);
++		FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ITALIC);
++		if (xloadsparefont(pattern, FRC_ITALIC))
++			die("can't open spare font %s\n", *fp);
++
++		FcPatternDel(pattern, FC_WEIGHT);
++		FcPatternAddInteger(pattern, FC_WEIGHT, FC_WEIGHT_BOLD);
++		if (xloadsparefont(pattern, FRC_ITALICBOLD))
++			die("can't open spare font %s\n", *fp);
++
++		FcPatternDel(pattern, FC_SLANT);
++		FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ROMAN);
++		if (xloadsparefont(pattern, FRC_BOLD))
++			die("can't open spare font %s\n", *fp);
++
++		FcPatternDestroy(pattern);
++	}
++}
++
+ void
+ xunloadfont(Font *f)
+ {
+@@ -1131,6 +1229,9 @@ xinit(int cols, int rows)
+ 	usedfont = (opt_font == NULL)? font : opt_font;
+ 	xloadfonts(usedfont, 0);
+
++	/* spare fonts */
++	xloadsparefonts();
++
+ 	/* colors */
+ 	xw.cmap = XDefaultColormap(xw.dpy, xw.scr);
+ 	xloadcols();
+--
+2.37.1
+

patches/st-glyph-wide-support-20220411-ef05519.diff

@@ -0,0 +1,206 @@
+From 68de38fadd04f2f454bceccea0fccc8276b635cb Mon Sep 17 00:00:00 2001
+From: wael <40663@protonmail.com>
+Date: Mon, 11 Apr 2022 16:45:49 +0300
+Subject: [PATCH] add glyph wide support patch
+
+---
+ st.h |   6 +++
+ x.c  | 134 +++++++++++++++++++++++++++++------------------------------
+ 2 files changed, 73 insertions(+), 67 deletions(-)
+
+diff --git a/st.h b/st.h
+index 519b9bd..4f74621 100644
+--- a/st.h
++++ b/st.h
+@@ -36,6 +36,12 @@ enum glyph_attribute {
+ 	ATTR_BOLD_FAINT = ATTR_BOLD | ATTR_FAINT,
+ };
+ 
++enum drawing_mode {
++    DRAW_NONE = 0,
++    DRAW_BG = 1 << 0,
++    DRAW_FG = 1 << 1,
++};
++
+ enum selection_mode {
+ 	SEL_IDLE = 0,
+ 	SEL_EMPTY = 1,
+diff --git a/x.c b/x.c
+index 2a3bd38..d60df52 100644
+--- a/x.c
++++ b/x.c
+@@ -142,7 +142,7 @@ typedef struct {
+ 
+ static inline ushort sixd_to_16bit(int);
+ static int xmakeglyphfontspecs(XftGlyphFontSpec *, const Glyph *, int, int, int);
+-static void xdrawglyphfontspecs(const XftGlyphFontSpec *, Glyph, int, int, int);
++static void xdrawglyphfontspecs(const XftGlyphFontSpec *, Glyph, int, int, int, int);
+ static void xdrawglyph(Glyph, int, int);
+ static void xclear(int, int, int, int);
+ static int xgeommasktogravity(int);
+@@ -1372,7 +1372,7 @@ xmakeglyphfontspecs(XftGlyphFontSpec *specs, const Glyph *glyphs, int len, int x
+ }
+ 
+ void
+-xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, int x, int y)
++xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, int x, int y, int dmode)
+ {
+ 	int charlen = len * ((base.mode & ATTR_WIDE) ? 2 : 1);
+ 	int winx = borderpx + x * win.cw, winy = borderpx + y * win.ch,
+@@ -1463,47 +1463,40 @@ xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, int x, i
+ 	if (base.mode & ATTR_INVISIBLE)
+ 		fg = bg;
+ 
+-	/* Intelligent cleaning up of the borders. */
+-	if (x == 0) {
+-		xclear(0, (y == 0)? 0 : winy, borderpx,
+-			winy + win.ch +
+-			((winy + win.ch >= borderpx + win.th)? win.h : 0));
+-	}
+-	if (winx + width >= borderpx + win.tw) {
+-		xclear(winx + width, (y == 0)? 0 : winy, win.w,
+-			((winy + win.ch >= borderpx + win.th)? win.h : (winy + win.ch)));
+-	}
+-	if (y == 0)
+-		xclear(winx, 0, winx + width, borderpx);
+-	if (winy + win.ch >= borderpx + win.th)
+-		xclear(winx, winy + win.ch, winx + width, win.h);
+-
+-	/* Clean up the region we want to draw to. */
+-	XftDrawRect(xw.draw, bg, winx, winy, width, win.ch);
+-
+-	/* Set the clip region because Xft is sometimes dirty. */
+-	r.x = 0;
+-	r.y = 0;
+-	r.height = win.ch;
+-	r.width = width;
+-	XftDrawSetClipRectangles(xw.draw, winx, winy, &r, 1);
+-
+-	/* Render the glyphs. */
+-	XftDrawGlyphFontSpec(xw.draw, fg, specs, len);
+-
+-	/* Render underline and strikethrough. */
+-	if (base.mode & ATTR_UNDERLINE) {
+-		XftDrawRect(xw.draw, fg, winx, winy + dc.font.ascent * chscale + 1,
+-				width, 1);
+-	}
+-
+-	if (base.mode & ATTR_STRUCK) {
+-		XftDrawRect(xw.draw, fg, winx, winy + 2 * dc.font.ascent * chscale / 3,
+-				width, 1);
+-	}
+-
+-	/* Reset clip to none. */
+-	XftDrawSetClip(xw.draw, 0);
++    if (dmode & DRAW_BG) {
++        /* Intelligent cleaning up of the borders. */
++        if (x == 0) {
++            xclear(0, (y == 0)? 0 : winy, borderpx,
++                   winy + win.ch +
++                   ((winy + win.ch >= borderpx + win.th)? win.h : 0));
++        }
++        if (winx + width >= borderpx + win.tw) {
++            xclear(winx + width, (y == 0)? 0 : winy, win.w,
++                   ((winy + win.ch >= borderpx + win.th)? win.h : (winy + win.ch)));
++        }
++        if (y == 0)
++            xclear(winx, 0, winx + width, borderpx);
++        if (winy + win.ch >= borderpx + win.th)
++            xclear(winx, winy + win.ch, winx + width, win.h);
++        /* Fill the background */
++        XftDrawRect(xw.draw, bg, winx, winy, width, win.ch);
++    }
++
++    if (dmode & DRAW_FG) {
++        /* Render the glyphs. */
++        XftDrawGlyphFontSpec(xw.draw, fg, specs, len);
++
++        /* Render underline and strikethrough. */
++        if (base.mode & ATTR_UNDERLINE) {
++            XftDrawRect(xw.draw, fg, winx, winy + dc.font.ascent + 1,
++                        width, 1);
++        }
++
++        if (base.mode & ATTR_STRUCK) {
++            XftDrawRect(xw.draw, fg, winx, winy + 2 * dc.font.ascent / 3,
++                        width, 1);
++        }
++    }
+ }
+ 
+ void
+@@ -1513,7 +1506,7 @@ xdrawglyph(Glyph g, int x, int y)
+ 	XftGlyphFontSpec spec;
+ 
+ 	numspecs = xmakeglyphfontspecs(&spec, &g, 1, x, y);
+-	xdrawglyphfontspecs(&spec, g, numspecs, x, y);
++	xdrawglyphfontspecs(&spec, g, numspecs, x, y, DRAW_BG | DRAW_FG);
+ }
+ 
+ void
+@@ -1648,32 +1641,39 @@ xstartdraw(void)
+ void
+ xdrawline(Line line, int x1, int y1, int x2)
+ {
+-	int i, x, ox, numspecs;
++	int i, x, ox, numspecs, numspecs_cached;
+ 	Glyph base, new;
+-	XftGlyphFontSpec *specs = xw.specbuf;
+-
+-	numspecs = xmakeglyphfontspecs(specs, &line[x1], x2 - x1, x1, y1);
+-	i = ox = 0;
+-	for (x = x1; x < x2 && i < numspecs; x++) {
+-		new = line[x];
+-		if (new.mode == ATTR_WDUMMY)
+-			continue;
+-		if (selected(x, y1))
+-			new.mode ^= ATTR_REVERSE;
+-		if (i > 0 && ATTRCMP(base, new)) {
+-			xdrawglyphfontspecs(specs, base, i, ox, y1);
+-			specs += i;
+-			numspecs -= i;
+-			i = 0;
+-		}
+-		if (i == 0) {
+-			ox = x;
+-			base = new;
++	XftGlyphFontSpec *specs;
++
++	numspecs_cached = xmakeglyphfontspecs(xw.specbuf, &line[x1], x2 - x1, x1, y1);
++
++	/* Draw line in 2 passes: background and foreground. This way wide glyphs
++       won't get truncated (#223) */
++	for (int dmode = DRAW_BG; dmode <= DRAW_FG; dmode <<= 1) {
++		specs = xw.specbuf;
++		numspecs = numspecs_cached;
++		i = ox = 0;
++		for (x = x1; x < x2 && i < numspecs; x++) {
++			new = line[x];
++			if (new.mode == ATTR_WDUMMY)
++				continue;
++			if (selected(x, y1))
++				new.mode ^= ATTR_REVERSE;
++			if (i > 0 && ATTRCMP(base, new)) {
++				xdrawglyphfontspecs(specs, base, i, ox, y1, dmode);
++				specs += i;
++				numspecs -= i;
++				i = 0;
++			}
++			if (i == 0) {
++				ox = x;
++				base = new;
++			}
++			i++;
+ 		}
+-		i++;
++		if (i > 0)
++			xdrawglyphfontspecs(specs, base, i, ox, y1, dmode);
+ 	}
+-	if (i > 0)
+-		xdrawglyphfontspecs(specs, base, i, ox, y1);
+ }
+ 
+ void
+-- 
+2.35.1
+

patches/st-keyboard_select-0.8.2.diff

@@ -0,0 +1,336 @@
+From 45cadc1ce5d8d9dd3493c2e9979e8958d87e8bc5 Mon Sep 17 00:00:00 2001
+From: Bartosz Sosna <brtsos@gmail.com>
+Date: Sat, 4 May 2019 00:28:24 +0200
+Subject: [PATCH] Adjust patch to version st-0.8.2
+
+---
+ config.def.h |   1 +
+ st.c         | 222 +++++++++++++++++++++++++++++++++++++++++++++++++++
+ st.h         |   1 +
+ win.h        |   3 +
+ x.c          |  15 ++++
+ 5 files changed, 242 insertions(+)
+
+diff --git a/config.def.h b/config.def.h
+index 482901e..c1e9cce 100644
+--- a/config.def.h
++++ b/config.def.h
+@@ -178,6 +178,7 @@ static Shortcut shortcuts[] = {
+ 	{ TERMMOD,              XK_Y,           selpaste,       {.i =  0} },
+ 	{ ShiftMask,            XK_Insert,      selpaste,       {.i =  0} },
+ 	{ TERMMOD,              XK_Num_Lock,    numlock,        {.i =  0} },
++    { TERMMOD,              XK_Escape,      keyboard_select,{ 0 } },
+ };
+ 
+ /*
+diff --git a/st.c b/st.c
+index ede7ae6..c2116b2 100644
+--- a/st.c
++++ b/st.c
+@@ -16,6 +16,8 @@
+ #include <termios.h>
+ #include <unistd.h>
+ #include <wchar.h>
++#include <X11/keysym.h>
++#include <X11/X.h>
+ 
+ #include "st.h"
+ #include "win.h"
+@@ -2464,6 +2466,9 @@ tresize(int col, int row)
+ 	int *bp;
+ 	TCursor c;
+ 
++	if ( row < term.row  || col < term.col )
++        toggle_winmode(trt_kbdselect(XK_Escape, NULL, 0));
++
+ 	if (col < 1 || row < 1) {
+ 		fprintf(stderr,
+ 		        "tresize: error resizing to %dx%d\n", col, row);
+@@ -2586,3 +2591,220 @@ redraw(void)
+ 	tfulldirt();
+ 	draw();
+ }
++
++void set_notifmode(int type, KeySym ksym) {
++    static char *lib[] = { " MOVE ", " SEL  "};
++    static Glyph *g, *deb, *fin;
++    static int col, bot;
++
++    if ( ksym == -1 ) {
++        free(g);
++        col = term.col, bot = term.bot;
++        g = xmalloc(col * sizeof(Glyph));
++        memcpy(g, term.line[bot], col * sizeof(Glyph));
++    
++    }
++    else if ( ksym == -2 )
++        memcpy(term.line[bot], g, col * sizeof(Glyph));
++
++    if ( type < 2 ) {
++        char *z = lib[type];
++        for (deb = &term.line[bot][col - 6], fin = &term.line[bot][col]; deb < fin; z++, deb++)
++            deb->mode = ATTR_REVERSE,
++            deb->u = *z,
++            deb->fg = defaultfg, deb->bg = defaultbg;
++    }
++    else if ( type < 5 )
++        memcpy(term.line[bot], g, col * sizeof(Glyph));
++    else {
++        for (deb = &term.line[bot][0], fin = &term.line[bot][col]; deb < fin; deb++)
++            deb->mode = ATTR_REVERSE,
++            deb->u = ' ',
++            deb->fg = defaultfg, deb->bg = defaultbg;
++        term.line[bot][0].u = ksym;
++    }
++
++    term.dirty[bot] = 1;
++    drawregion(0, bot, col, bot + 1);
++}
++
++void select_or_drawcursor(int selectsearch_mode, int type) {
++    int done = 0;
++
++    if ( selectsearch_mode & 1 ) {
++        selextend(term.c.x, term.c.y, type, done);
++        xsetsel(getsel());
++    }
++    else
++        xdrawcursor(term.c.x, term.c.y, term.line[term.c.y][term.c.x],
++                    term.ocx, term.ocy, term.line[term.ocy][term.ocx]);
++}
++
++void search(int selectsearch_mode, Rune *target, int ptarget, int incr, int type, TCursor *cu) {
++    Rune *r;
++    int i, bound = (term.col * cu->y + cu->x) * (incr > 0) + incr;
++
++    for (i = term.col * term.c.y + term.c.x + incr; i != bound; i += incr) {
++        for (r = target; r - target < ptarget; r++) {
++            if ( *r == term.line[(i + r - target) / term.col][(i + r - target) % term.col].u ) {
++                if ( r - target == ptarget - 1 )     break;
++            } else {
++                r = NULL;
++                break;
++            }
++        }
++        if ( r != NULL )    break;
++    }
++        
++    if ( i != bound ) {
++        term.c.y = i / term.col, term.c.x = i % term.col;
++        select_or_drawcursor(selectsearch_mode, type);
++    }
++}
++
++int trt_kbdselect(KeySym ksym, char *buf, int len) {
++    static TCursor cu;
++    static Rune target[64];
++    static int type = 1, ptarget, in_use;
++    static int sens, quant;
++    static char selectsearch_mode;
++    int i, bound, *xy;
++    
++    
++    if ( selectsearch_mode & 2 ) {
++		if ( ksym == XK_Return ) {
++			selectsearch_mode ^= 2;
++			set_notifmode(selectsearch_mode, -2);
++            if ( ksym == XK_Escape )    ptarget = 0;
++			return 0;
++		}
++        else if ( ksym == XK_BackSpace ) {
++            if ( !ptarget )     return 0;
++            term.line[term.bot][ptarget--].u = ' ';
++		}
++        else if ( len < 1 ) {
++			return 0;
++		}
++        else if ( ptarget == term.col  || ksym == XK_Escape ) {
++            return 0;
++        }
++		else {
++            utf8decode(buf, &target[ptarget++], len);
++            term.line[term.bot][ptarget].u = target[ptarget - 1];
++		}
++
++        if ( ksym != XK_BackSpace )
++            search(selectsearch_mode, &target[0], ptarget, sens, type, &cu);
++
++        term.dirty[term.bot] = 1; 
++        drawregion(0, term.bot, term.col, term.bot + 1);
++        return 0;
++    }
++
++    switch ( ksym ) {
++    case -1 :
++        in_use = 1;
++        cu.x = term.c.x, cu.y = term.c.y;
++        set_notifmode(0, ksym);
++        return MODE_KBDSELECT;
++    case XK_s :
++        if ( selectsearch_mode & 1 )
++            selclear();
++        else
++            selstart(term.c.x, term.c.y, 0);
++        set_notifmode(selectsearch_mode ^= 1, ksym);
++        break;
++    case XK_t :
++        selextend(term.c.x, term.c.y, type ^= 3, i = 0);  /* 2 fois */
++        selextend(term.c.x, term.c.y, type, i = 0);
++        break;
++    case XK_slash :
++    case XK_KP_Divide :
++    case XK_question :
++        ksym &= XK_question;                /* Divide to slash */
++        sens = (ksym == XK_slash) ? -1 : 1;
++        ptarget = 0;
++        set_notifmode(15, ksym);
++        selectsearch_mode ^= 2;
++        break;
++    case XK_Escape :
++        if ( !in_use )  break;
++        selclear();
++    case XK_Return :
++        set_notifmode(4, ksym);
++        term.c.x = cu.x, term.c.y = cu.y;
++        select_or_drawcursor(selectsearch_mode = 0, type);
++        in_use = quant = 0;
++        return MODE_KBDSELECT;
++    case XK_n :
++    case XK_N :
++        if ( ptarget )
++            search(selectsearch_mode, &target[0], ptarget, (ksym == XK_n) ? -1 : 1, type, &cu);
++        break;
++    case XK_BackSpace :
++        term.c.x = 0;
++        select_or_drawcursor(selectsearch_mode, type);
++        break;
++    case XK_dollar :
++        term.c.x = term.col - 1;
++        select_or_drawcursor(selectsearch_mode, type);
++        break;
++    case XK_Home :
++        term.c.x = 0, term.c.y = 0;
++        select_or_drawcursor(selectsearch_mode, type);
++        break;
++    case XK_End :
++        term.c.x = cu.x, term.c.y = cu.y;
++        select_or_drawcursor(selectsearch_mode, type);
++        break;
++    case XK_Page_Up :
++    case XK_Page_Down :
++        term.c.y = (ksym == XK_Prior ) ? 0 : cu.y;
++        select_or_drawcursor(selectsearch_mode, type);
++        break;
++    case XK_exclam :
++        term.c.x = term.col >> 1;
++        select_or_drawcursor(selectsearch_mode, type);
++        break;
++    case XK_asterisk :
++    case XK_KP_Multiply :
++        term.c.x = term.col >> 1;
++    case XK_underscore :
++        term.c.y = cu.y >> 1;
++        select_or_drawcursor(selectsearch_mode, type);
++        break;
++    default :
++        if ( ksym >= XK_0 && ksym <= XK_9 ) {               /* 0-9 keyboard */
++            quant = (quant * 10) + (ksym ^ XK_0);
++            return 0;
++        }
++        else if ( ksym >= XK_KP_0 && ksym <= XK_KP_9 ) {    /* 0-9 numpad */
++            quant = (quant * 10) + (ksym ^ XK_KP_0);
++            return 0;
++        }
++        else if ( ksym == XK_k || ksym == XK_h )
++            i = ksym & 1;
++        else if ( ksym == XK_l || ksym == XK_j )
++            i = ((ksym & 6) | 4) >> 1;
++        else if ( (XK_Home & ksym) != XK_Home || (i = (ksym ^ XK_Home) - 1) > 3 )
++            break;
++
++        xy = (i & 1) ? &term.c.y : &term.c.x;
++        sens = (i & 2) ? 1 : -1;
++        bound = (i >> 1 ^ 1) ? 0 : (i ^ 3) ? term.col - 1 : term.bot;
++
++        if ( quant == 0 )
++            quant++;
++
++        if ( *xy == bound && ((sens < 0 && bound == 0) || (sens > 0 && bound > 0)) )
++            break;
++
++        *xy += quant * sens;
++        if ( *xy < 0 || ( bound > 0 && *xy > bound) )
++            *xy = bound;
++
++        select_or_drawcursor(selectsearch_mode, type);
++    }
++    quant = 0;
++    return 0;
++}
+diff --git a/st.h b/st.h
+index 4da3051..22125e4 100644
+--- a/st.h
++++ b/st.h
+@@ -109,6 +109,7 @@ size_t utf8encode(Rune, char *);
+ void *xmalloc(size_t);
+ void *xrealloc(void *, size_t);
+ char *xstrdup(char *);
++int trt_kbdselect(KeySym, char *, int);
+ 
+ /* config.h globals */
+ extern char *utmp;
+diff --git a/win.h b/win.h
+index a6ef1b9..a240783 100644
+--- a/win.h
++++ b/win.h
+@@ -21,6 +21,7 @@ enum win_mode {
+ 	MODE_NUMLOCK     = 1 << 17,
+ 	MODE_MOUSE       = MODE_MOUSEBTN|MODE_MOUSEMOTION|MODE_MOUSEX10\
+ 	                  |MODE_MOUSEMANY,
++    MODE_KBDSELECT   = 1 << 18,
+ };
+ 
+ void xbell(void);
+@@ -36,4 +37,6 @@ void xsetmode(int, unsigned int);
+ void xsetpointermotion(int);
+ void xsetsel(char *);
+ int xstartdraw(void);
++void toggle_winmode(int);
++void keyboard_select(const Arg *);
+ void xximspot(int, int);
+diff --git a/x.c b/x.c
+index 5828a3b..5221641 100644
+--- a/x.c
++++ b/x.c
+@@ -1731,6 +1731,13 @@ kpress(XEvent *ev)
+ 		return;
+ 
+ 	len = XmbLookupString(xw.xic, e, buf, sizeof buf, &ksym, &status);
++    if ( IS_SET(MODE_KBDSELECT) ) {
++		if ( match(XK_NO_MOD, e->state) ||
++            (XK_Shift_L | XK_Shift_R) & e->state )
++            win.mode ^= trt_kbdselect(ksym, buf, len);
++		return;
++    }
++
+ 	/* 1. shortcuts */
+ 	for (bp = shortcuts; bp < shortcuts + LEN(shortcuts); bp++) {
+ 		if (ksym == bp->keysym && match(bp->mod, e->state)) {
+@@ -1914,6 +1921,14 @@ usage(void)
+ 	    " [stty_args ...]\n", argv0, argv0);
+ }
+ 
++void toggle_winmode(int flag) {
++        win.mode ^= flag;
++}
++
++void keyboard_select(const Arg *dummy) {
++    win.mode ^= trt_kbdselect(-1, NULL, 0);
++}
++
+ int
+ main(int argc, char *argv[])
+ {
+-- 
+2.17.1
+

patches/st-keyboard_select-20200617-9ba7ecf.diff

@@ -0,0 +1,319 @@
+diff --git a/config.def.h b/config.def.h
+index 6f05dce..54612d1 100644
+--- a/config.def.h
++++ b/config.def.h
+@@ -199,6 +199,7 @@ static Shortcut shortcuts[] = {
+ 	{ TERMMOD,              XK_Y,           selpaste,       {.i =  0} },
+ 	{ ShiftMask,            XK_Insert,      selpaste,       {.i =  0} },
+ 	{ TERMMOD,              XK_Num_Lock,    numlock,        {.i =  0} },
++	{ TERMMOD,              XK_Escape,      keyboard_select,{.i =  0} },
+ };
+ 
+ /*
+diff --git a/st.c b/st.c
+index ef8abd5..0c6c6ca 100644
+--- a/st.c
++++ b/st.c
+@@ -16,6 +16,8 @@
+ #include <termios.h>
+ #include <unistd.h>
+ #include <wchar.h>
++#include <X11/keysym.h>
++#include <X11/X.h>
+ 
+ #include "st.h"
+ #include "win.h"
+@@ -2487,6 +2489,9 @@ tresize(int col, int row)
+ 	int *bp;
+ 	TCursor c;
+ 
++	if ( row < term.row  || col < term.col )
++		toggle_winmode(trt_kbdselect(XK_Escape, NULL, 0));
++
+ 	if (col < 1 || row < 1) {
+ 		fprintf(stderr,
+ 		        "tresize: error resizing to %dx%d\n", col, row);
+@@ -2612,3 +2617,220 @@ redraw(void)
+ 	tfulldirt();
+ 	draw();
+ }
++
++void set_notifmode(int type, KeySym ksym) {
++	static char *lib[] = { " MOVE ", " SEL  "};
++	static Glyph *g, *deb, *fin;
++	static int col, bot;
++
++	if ( ksym == -1 ) {
++		free(g);
++		col = term.col, bot = term.bot;
++		g = xmalloc(col * sizeof(Glyph));
++		memcpy(g, term.line[bot], col * sizeof(Glyph));
++
++	}
++	else if ( ksym == -2 )
++		memcpy(term.line[bot], g, col * sizeof(Glyph));
++
++	if ( type < 2 ) {
++		char *z = lib[type];
++		for (deb = &term.line[bot][col - 6], fin = &term.line[bot][col]; deb < fin; z++, deb++)
++			deb->mode = ATTR_REVERSE,
++				deb->u = *z,
++				deb->fg = defaultfg, deb->bg = defaultbg;
++	}
++	else if ( type < 5 )
++		memcpy(term.line[bot], g, col * sizeof(Glyph));
++	else {
++		for (deb = &term.line[bot][0], fin = &term.line[bot][col]; deb < fin; deb++)
++			deb->mode = ATTR_REVERSE,
++				deb->u = ' ',
++				deb->fg = defaultfg, deb->bg = defaultbg;
++		term.line[bot][0].u = ksym;
++	}
++
++	term.dirty[bot] = 1;
++	drawregion(0, bot, col, bot + 1);
++}
++
++void select_or_drawcursor(int selectsearch_mode, int type) {
++	int done = 0;
++
++	if ( selectsearch_mode & 1 ) {
++		selextend(term.c.x, term.c.y, type, done);
++		xsetsel(getsel());
++	}
++	else
++		xdrawcursor(term.c.x, term.c.y, term.line[term.c.y][term.c.x],
++			    term.ocx, term.ocy, term.line[term.ocy][term.ocx]);
++}
++
++void search(int selectsearch_mode, Rune *target, int ptarget, int incr, int type, TCursor *cu) {
++	Rune *r;
++	int i, bound = (term.col * cu->y + cu->x) * (incr > 0) + incr;
++
++	for (i = term.col * term.c.y + term.c.x + incr; i != bound; i += incr) {
++		for (r = target; r - target < ptarget; r++) {
++			if ( *r == term.line[(i + r - target) / term.col][(i + r - target) % term.col].u ) {
++				if ( r - target == ptarget - 1 )     break;
++			} else {
++				r = NULL;
++				break;
++			}
++		}
++		if ( r != NULL )    break;
++	}
++
++	if ( i != bound ) {
++		term.c.y = i / term.col, term.c.x = i % term.col;
++		select_or_drawcursor(selectsearch_mode, type);
++	}
++}
++
++int trt_kbdselect(KeySym ksym, char *buf, int len) {
++	static TCursor cu;
++	static Rune target[64];
++	static int type = 1, ptarget, in_use;
++	static int sens, quant;
++	static char selectsearch_mode;
++	int i, bound, *xy;
++
++
++	if ( selectsearch_mode & 2 ) {
++		if ( ksym == XK_Return ) {
++			selectsearch_mode ^= 2;
++			set_notifmode(selectsearch_mode, -2);
++			if ( ksym == XK_Escape )    ptarget = 0;
++			return 0;
++		}
++		else if ( ksym == XK_BackSpace ) {
++			if ( !ptarget )     return 0;
++			term.line[term.bot][ptarget--].u = ' ';
++		}
++		else if ( len < 1 ) {
++			return 0;
++		}
++		else if ( ptarget == term.col  || ksym == XK_Escape ) {
++			return 0;
++		}
++		else {
++			utf8decode(buf, &target[ptarget++], len);
++			term.line[term.bot][ptarget].u = target[ptarget - 1];
++		}
++
++		if ( ksym != XK_BackSpace )
++			search(selectsearch_mode, &target[0], ptarget, sens, type, &cu);
++
++		term.dirty[term.bot] = 1;
++		drawregion(0, term.bot, term.col, term.bot + 1);
++		return 0;
++	}
++
++	switch ( ksym ) {
++	case -1 :
++		in_use = 1;
++		cu.x = term.c.x, cu.y = term.c.y;
++		set_notifmode(0, ksym);
++		return MODE_KBDSELECT;
++	case XK_s :
++		if ( selectsearch_mode & 1 )
++			selclear();
++		else
++			selstart(term.c.x, term.c.y, 0);
++		set_notifmode(selectsearch_mode ^= 1, ksym);
++		break;
++	case XK_t :
++		selextend(term.c.x, term.c.y, type ^= 3, i = 0);  /* 2 fois */
++		selextend(term.c.x, term.c.y, type, i = 0);
++		break;
++	case XK_slash :
++	case XK_KP_Divide :
++	case XK_question :
++		ksym &= XK_question;                /* Divide to slash */
++		sens = (ksym == XK_slash) ? -1 : 1;
++		ptarget = 0;
++		set_notifmode(15, ksym);
++		selectsearch_mode ^= 2;
++		break;
++	case XK_Escape :
++		if ( !in_use )  break;
++		selclear();
++	case XK_Return :
++		set_notifmode(4, ksym);
++		term.c.x = cu.x, term.c.y = cu.y;
++		select_or_drawcursor(selectsearch_mode = 0, type);
++		in_use = quant = 0;
++		return MODE_KBDSELECT;
++	case XK_n :
++	case XK_N :
++		if ( ptarget )
++			search(selectsearch_mode, &target[0], ptarget, (ksym == XK_n) ? -1 : 1, type, &cu);
++		break;
++	case XK_BackSpace :
++		term.c.x = 0;
++		select_or_drawcursor(selectsearch_mode, type);
++		break;
++	case XK_dollar :
++		term.c.x = term.col - 1;
++		select_or_drawcursor(selectsearch_mode, type);
++		break;
++	case XK_Home :
++		term.c.x = 0, term.c.y = 0;
++		select_or_drawcursor(selectsearch_mode, type);
++		break;
++	case XK_End :
++		term.c.x = cu.x, term.c.y = cu.y;
++		select_or_drawcursor(selectsearch_mode, type);
++		break;
++	case XK_Page_Up :
++	case XK_Page_Down :
++		term.c.y = (ksym == XK_Prior ) ? 0 : cu.y;
++		select_or_drawcursor(selectsearch_mode, type);
++		break;
++	case XK_exclam :
++		term.c.x = term.col >> 1;
++		select_or_drawcursor(selectsearch_mode, type);
++		break;
++	case XK_asterisk :
++	case XK_KP_Multiply :
++		term.c.x = term.col >> 1;
++	case XK_underscore :
++		term.c.y = cu.y >> 1;
++		select_or_drawcursor(selectsearch_mode, type);
++		break;
++	default :
++		if ( ksym >= XK_0 && ksym <= XK_9 ) {               /* 0-9 keyboard */
++			quant = (quant * 10) + (ksym ^ XK_0);
++			return 0;
++		}
++		else if ( ksym >= XK_KP_0 && ksym <= XK_KP_9 ) {    /* 0-9 numpad */
++			quant = (quant * 10) + (ksym ^ XK_KP_0);
++			return 0;
++		}
++		else if ( ksym == XK_k || ksym == XK_h )
++			i = ksym & 1;
++		else if ( ksym == XK_l || ksym == XK_j )
++			i = ((ksym & 6) | 4) >> 1;
++		else if ( (XK_Home & ksym) != XK_Home || (i = (ksym ^ XK_Home) - 1) > 3 )
++			break;
++
++		xy = (i & 1) ? &term.c.y : &term.c.x;
++		sens = (i & 2) ? 1 : -1;
++		bound = (i >> 1 ^ 1) ? 0 : (i ^ 3) ? term.col - 1 : term.bot;
++
++		if ( quant == 0 )
++			quant++;
++
++		if ( *xy == bound && ((sens < 0 && bound == 0) || (sens > 0 && bound > 0)) )
++			break;
++
++		*xy += quant * sens;
++		if ( *xy < 0 || ( bound > 0 && *xy > bound) )
++			*xy = bound;
++
++		select_or_drawcursor(selectsearch_mode, type);
++	}
++	quant = 0;
++	return 0;
++}
+diff --git a/st.h b/st.h
+index 3d351b6..2d1a11b 100644
+--- a/st.h
++++ b/st.h
+@@ -110,6 +110,7 @@ size_t utf8encode(Rune, char *);
+ void *xmalloc(size_t);
+ void *xrealloc(void *, size_t);
+ char *xstrdup(char *);
++int  trt_kbdselect(KeySym, char *, int);
+ 
+ /* config.h globals */
+ extern char *utmp;
+diff --git a/win.h b/win.h
+index a6ef1b9..9a47fbb 100644
+--- a/win.h
++++ b/win.h
+@@ -21,6 +21,7 @@ enum win_mode {
+ 	MODE_NUMLOCK     = 1 << 17,
+ 	MODE_MOUSE       = MODE_MOUSEBTN|MODE_MOUSEMOTION|MODE_MOUSEX10\
+ 	                  |MODE_MOUSEMANY,
++	MODE_KBDSELECT   = 1 << 18,
+ };
+ 
+ void xbell(void);
+@@ -36,4 +37,6 @@ void xsetmode(int, unsigned int);
+ void xsetpointermotion(int);
+ void xsetsel(char *);
+ int xstartdraw(void);
++void toggle_winmode(int);
++void keyboard_select(const Arg *);
+ void xximspot(int, int);
+diff --git a/x.c b/x.c
+index 210f184..b77ce54 100644
+--- a/x.c
++++ b/x.c
+@@ -1800,6 +1800,12 @@ kpress(XEvent *ev)
+ 		len = XmbLookupString(xw.ime.xic, e, buf, sizeof buf, &ksym, &status);
+ 	else
+ 		len = XLookupString(e, buf, sizeof buf, &ksym, NULL);
++	if ( IS_SET(MODE_KBDSELECT) ) {
++		if ( match(XK_NO_MOD, e->state) ||
++		     (XK_Shift_L | XK_Shift_R) & e->state )
++			win.mode ^= trt_kbdselect(ksym, buf, len);
++		return;
++	}
+ 	/* 1. shortcuts */
+ 	for (bp = shortcuts; bp < shortcuts + LEN(shortcuts); bp++) {
+ 		if (ksym == bp->keysym && match(bp->mod, e->state)) {
+@@ -1977,6 +1983,14 @@ usage(void)
+ 	    " [stty_args ...]\n", argv0, argv0);
+ }
+ 
++void toggle_winmode(int flag) {
++	win.mode ^= flag;
++}
++
++void keyboard_select(const Arg *dummy) {
++	win.mode ^= trt_kbdselect(-1, NULL, 0);
++}
++
+ int
+ main(int argc, char *argv[])
+ {

patches/st-scrollback-0.8.5.diff

@@ -0,0 +1,350 @@
+diff --git a/config.def.h b/config.def.h
+index 91ab8ca..e3b469b 100644
+--- a/config.def.h
++++ b/config.def.h
+@@ -201,6 +201,8 @@ static Shortcut shortcuts[] = {
+ 	{ TERMMOD,              XK_Y,           selpaste,       {.i =  0} },
+ 	{ ShiftMask,            XK_Insert,      selpaste,       {.i =  0} },
+ 	{ TERMMOD,              XK_Num_Lock,    numlock,        {.i =  0} },
++	{ ShiftMask,            XK_Page_Up,     kscrollup,      {.i = -1} },
++	{ ShiftMask,            XK_Page_Down,   kscrolldown,    {.i = -1} },
+ };
+ 
+ /*
+diff --git a/st.c b/st.c
+index 51049ba..cd750f2 100644
+--- a/st.c
++++ b/st.c
+@@ -35,6 +35,7 @@
+ #define ESC_ARG_SIZ   16
+ #define STR_BUF_SIZ   ESC_BUF_SIZ
+ #define STR_ARG_SIZ   ESC_ARG_SIZ
++#define HISTSIZE      2000
+ 
+ /* macros */
+ #define IS_SET(flag)		((term.mode & (flag)) != 0)
+@@ -42,6 +43,9 @@
+ #define ISCONTROLC1(c)		(BETWEEN(c, 0x80, 0x9f))
+ #define ISCONTROL(c)		(ISCONTROLC0(c) || ISCONTROLC1(c))
+ #define ISDELIM(u)		(u && wcschr(worddelimiters, u))
++#define TLINE(y)		((y) < term.scr ? term.hist[((y) + term.histi - \
++				term.scr + HISTSIZE + 1) % HISTSIZE] : \
++				term.line[(y) - term.scr])
+ 
+ enum term_mode {
+ 	MODE_WRAP        = 1 << 0,
+@@ -115,6 +119,9 @@ typedef struct {
+ 	int col;      /* nb col */
+ 	Line *line;   /* screen */
+ 	Line *alt;    /* alternate screen */
++	Line hist[HISTSIZE]; /* history buffer */
++	int histi;    /* history index */
++	int scr;      /* scroll back */
+ 	int *dirty;   /* dirtyness of lines */
+ 	TCursor c;    /* cursor */
+ 	int ocx;      /* old cursor col */
+@@ -184,8 +191,8 @@ static void tnewline(int);
+ static void tputtab(int);
+ static void tputc(Rune);
+ static void treset(void);
+-static void tscrollup(int, int);
+-static void tscrolldown(int, int);
++static void tscrollup(int, int, int);
++static void tscrolldown(int, int, int);
+ static void tsetattr(const int *, int);
+ static void tsetchar(Rune, const Glyph *, int, int);
+ static void tsetdirt(int, int);
+@@ -416,10 +423,10 @@ tlinelen(int y)
+ {
+ 	int i = term.col;
+ 
+-	if (term.line[y][i - 1].mode & ATTR_WRAP)
++	if (TLINE(y)[i - 1].mode & ATTR_WRAP)
+ 		return i;
+ 
+-	while (i > 0 && term.line[y][i - 1].u == ' ')
++	while (i > 0 && TLINE(y)[i - 1].u == ' ')
+ 		--i;
+ 
+ 	return i;
+@@ -528,7 +535,7 @@ selsnap(int *x, int *y, int direction)
+ 		 * Snap around if the word wraps around at the end or
+ 		 * beginning of a line.
+ 		 */
+-		prevgp = &term.line[*y][*x];
++		prevgp = &TLINE(*y)[*x];
+ 		prevdelim = ISDELIM(prevgp->u);
+ 		for (;;) {
+ 			newx = *x + direction;
+@@ -543,14 +550,14 @@ selsnap(int *x, int *y, int direction)
+ 					yt = *y, xt = *x;
+ 				else
+ 					yt = newy, xt = newx;
+-				if (!(term.line[yt][xt].mode & ATTR_WRAP))
++				if (!(TLINE(yt)[xt].mode & ATTR_WRAP))
+ 					break;
+ 			}
+ 
+ 			if (newx >= tlinelen(newy))
+ 				break;
+ 
+-			gp = &term.line[newy][newx];
++			gp = &TLINE(newy)[newx];
+ 			delim = ISDELIM(gp->u);
+ 			if (!(gp->mode & ATTR_WDUMMY) && (delim != prevdelim
+ 					|| (delim && gp->u != prevgp->u)))
+@@ -571,14 +578,14 @@ selsnap(int *x, int *y, int direction)
+ 		*x = (direction < 0) ? 0 : term.col - 1;
+ 		if (direction < 0) {
+ 			for (; *y > 0; *y += direction) {
+-				if (!(term.line[*y-1][term.col-1].mode
++				if (!(TLINE(*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
++				if (!(TLINE(*y)[term.col-1].mode
+ 						& ATTR_WRAP)) {
+ 					break;
+ 				}
+@@ -609,13 +616,13 @@ getsel(void)
+ 		}
+ 
+ 		if (sel.type == SEL_RECTANGULAR) {
+-			gp = &term.line[y][sel.nb.x];
++			gp = &TLINE(y)[sel.nb.x];
+ 			lastx = sel.ne.x;
+ 		} else {
+-			gp = &term.line[y][sel.nb.y == y ? sel.nb.x : 0];
++			gp = &TLINE(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)];
++		last = &TLINE(y)[MIN(lastx, linelen-1)];
+ 		while (last >= gp && last->u == ' ')
+ 			--last;
+ 
+@@ -851,6 +858,9 @@ void
+ ttywrite(const char *s, size_t n, int may_echo)
+ {
+ 	const char *next;
++	Arg arg = (Arg) { .i = term.scr };
++
++	kscrolldown(&arg);
+ 
+ 	if (may_echo && IS_SET(MODE_ECHO))
+ 		twrite(s, n, 1);
+@@ -1062,12 +1072,52 @@ tswapscreen(void)
+ }
+ 
+ void
+-tscrolldown(int orig, int n)
++kscrolldown(const Arg* a)
++{
++	int n = a->i;
++
++	if (n < 0)
++		n = term.row + n;
++
++	if (n > term.scr)
++		n = term.scr;
++
++	if (term.scr > 0) {
++		term.scr -= n;
++		selscroll(0, -n);
++		tfulldirt();
++	}
++}
++
++void
++kscrollup(const Arg* a)
++{
++	int n = a->i;
++
++	if (n < 0)
++		n = term.row + n;
++
++	if (term.scr <= HISTSIZE-n) {
++		term.scr += n;
++		selscroll(0, n);
++		tfulldirt();
++	}
++}
++
++void
++tscrolldown(int orig, int n, int copyhist)
+ {
+ 	int i;
+ 	Line temp;
+ 
+ 	LIMIT(n, 0, term.bot-orig+1);
++	if (copyhist) {
++		term.histi = (term.histi - 1 + HISTSIZE) % HISTSIZE;
++		temp = term.hist[term.histi];
++		term.hist[term.histi] = term.line[term.bot];
++		term.line[term.bot] = temp;
++	}
++
+ 
+ 	tsetdirt(orig, term.bot-n);
+ 	tclearregion(0, term.bot-n+1, term.col-1, term.bot);
+@@ -1078,17 +1128,28 @@ tscrolldown(int orig, int n)
+ 		term.line[i-n] = temp;
+ 	}
+ 
+-	selscroll(orig, n);
++	if (term.scr == 0)
++		selscroll(orig, n);
+ }
+ 
+ void
+-tscrollup(int orig, int n)
++tscrollup(int orig, int n, int copyhist)
+ {
+ 	int i;
+ 	Line temp;
+ 
+ 	LIMIT(n, 0, term.bot-orig+1);
+ 
++	if (copyhist) {
++		term.histi = (term.histi + 1) % HISTSIZE;
++		temp = term.hist[term.histi];
++		term.hist[term.histi] = term.line[orig];
++		term.line[orig] = temp;
++	}
++
++	if (term.scr > 0 && term.scr < HISTSIZE)
++		term.scr = MIN(term.scr + n, HISTSIZE-1);
++
+ 	tclearregion(0, orig, term.col-1, orig+n-1);
+ 	tsetdirt(orig+n, term.bot);
+ 
+@@ -1098,7 +1159,8 @@ tscrollup(int orig, int n)
+ 		term.line[i+n] = temp;
+ 	}
+ 
+-	selscroll(orig, -n);
++	if (term.scr == 0)
++		selscroll(orig, -n);
+ }
+ 
+ void
+@@ -1127,7 +1189,7 @@ tnewline(int first_col)
+ 	int y = term.c.y;
+ 
+ 	if (y == term.bot) {
+-		tscrollup(term.top, 1);
++		tscrollup(term.top, 1, 1);
+ 	} else {
+ 		y++;
+ 	}
+@@ -1292,14 +1354,14 @@ void
+ tinsertblankline(int n)
+ {
+ 	if (BETWEEN(term.c.y, term.top, term.bot))
+-		tscrolldown(term.c.y, n);
++		tscrolldown(term.c.y, n, 0);
+ }
+ 
+ void
+ tdeleteline(int n)
+ {
+ 	if (BETWEEN(term.c.y, term.top, term.bot))
+-		tscrollup(term.c.y, n);
++		tscrollup(term.c.y, n, 0);
+ }
+ 
+ int32_t
+@@ -1736,11 +1798,11 @@ csihandle(void)
+ 		break;
+ 	case 'S': /* SU -- Scroll <n> line up */
+ 		DEFAULT(csiescseq.arg[0], 1);
+-		tscrollup(term.top, csiescseq.arg[0]);
++		tscrollup(term.top, csiescseq.arg[0], 0);
+ 		break;
+ 	case 'T': /* SD -- Scroll <n> line down */
+ 		DEFAULT(csiescseq.arg[0], 1);
+-		tscrolldown(term.top, csiescseq.arg[0]);
++		tscrolldown(term.top, csiescseq.arg[0], 0);
+ 		break;
+ 	case 'L': /* IL -- Insert <n> blank lines */
+ 		DEFAULT(csiescseq.arg[0], 1);
+@@ -2330,7 +2392,7 @@ eschandle(uchar ascii)
+ 		return 0;
+ 	case 'D': /* IND -- Linefeed */
+ 		if (term.c.y == term.bot) {
+-			tscrollup(term.top, 1);
++			tscrollup(term.top, 1, 1);
+ 		} else {
+ 			tmoveto(term.c.x, term.c.y+1);
+ 		}
+@@ -2343,7 +2405,7 @@ eschandle(uchar ascii)
+ 		break;
+ 	case 'M': /* RI -- Reverse index */
+ 		if (term.c.y == term.top) {
+-			tscrolldown(term.top, 1);
++			tscrolldown(term.top, 1, 1);
+ 		} else {
+ 			tmoveto(term.c.x, term.c.y-1);
+ 		}
+@@ -2557,7 +2619,7 @@ twrite(const char *buf, int buflen, int show_ctrl)
+ void
+ tresize(int col, int row)
+ {
+-	int i;
++	int i, j;
+ 	int minrow = MIN(row, term.row);
+ 	int mincol = MIN(col, term.col);
+ 	int *bp;
+@@ -2594,6 +2656,14 @@ tresize(int col, int row)
+ 	term.dirty = xrealloc(term.dirty, row * sizeof(*term.dirty));
+ 	term.tabs = xrealloc(term.tabs, col * sizeof(*term.tabs));
+ 
++	for (i = 0; i < HISTSIZE; i++) {
++		term.hist[i] = xrealloc(term.hist[i], col * sizeof(Glyph));
++		for (j = mincol; j < col; j++) {
++			term.hist[i][j] = term.c.attr;
++			term.hist[i][j].u = ' ';
++		}
++	}
++
+ 	/* resize each row to new width, zero-pad if needed */
+ 	for (i = 0; i < minrow; i++) {
+ 		term.line[i] = xrealloc(term.line[i], col * sizeof(Glyph));
+@@ -2652,7 +2722,7 @@ drawregion(int x1, int y1, int x2, int y2)
+ 			continue;
+ 
+ 		term.dirty[y] = 0;
+-		xdrawline(term.line[y], x1, y, x2);
++		xdrawline(TLINE(y), x1, y, x2);
+ 	}
+ }
+ 
+@@ -2673,8 +2743,9 @@ draw(void)
+ 		cx--;
+ 
+ 	drawregion(0, 0, term.col, term.row);
+-	xdrawcursor(cx, term.c.y, term.line[term.c.y][cx],
+-			term.ocx, term.ocy, term.line[term.ocy][term.ocx]);
++	if (term.scr == 0)
++		xdrawcursor(cx, term.c.y, term.line[term.c.y][cx],
++				term.ocx, term.ocy, term.line[term.ocy][term.ocx]);
+ 	term.ocx = cx;
+ 	term.ocy = term.c.y;
+ 	xfinishdraw();
+diff --git a/st.h b/st.h
+index 519b9bd..da36b34 100644
+--- a/st.h
++++ b/st.h
+@@ -81,6 +81,8 @@ void die(const char *, ...);
+ void redraw(void);
+ void draw(void);
+ 
++void kscrolldown(const Arg *);
++void kscrollup(const Arg *);
+ void printscreen(const Arg *);
+ void printsel(const Arg *);
+ void sendbreak(const Arg *);

patches/st-xresources-20200604-9ba7ecf.diff

@@ -0,0 +1,184 @@
+From 2752a599ee01305a435729bfacf43b1dde7cf0ef Mon Sep 17 00:00:00 2001
+From: Benji Encalada Mora <benji@encalada.dev>
+Date: Thu, 4 Jun 2020 00:41:10 -0500
+Subject: [PATCH] fix: replace xfps and actionfps variables
+
+---
+ config.def.h | 36 ++++++++++++++++++++++++
+ x.c          | 78 +++++++++++++++++++++++++++++++++++++++++++++++++---
+ 2 files changed, 110 insertions(+), 4 deletions(-)
+
+diff --git a/config.def.h b/config.def.h
+index 6f05dce..9b99782 100644
+--- a/config.def.h
++++ b/config.def.h
+@@ -168,6 +168,42 @@ static unsigned int defaultattr = 11;
+  */
+ static uint forcemousemod = ShiftMask;
+ 
++/*
++ * Xresources preferences to load at startup
++ */
++ResourcePref resources[] = {
++		{ "font",         STRING,  &font },
++		{ "color0",       STRING,  &colorname[0] },
++		{ "color1",       STRING,  &colorname[1] },
++		{ "color2",       STRING,  &colorname[2] },
++		{ "color3",       STRING,  &colorname[3] },
++		{ "color4",       STRING,  &colorname[4] },
++		{ "color5",       STRING,  &colorname[5] },
++		{ "color6",       STRING,  &colorname[6] },
++		{ "color7",       STRING,  &colorname[7] },
++		{ "color8",       STRING,  &colorname[8] },
++		{ "color9",       STRING,  &colorname[9] },
++		{ "color10",      STRING,  &colorname[10] },
++		{ "color11",      STRING,  &colorname[11] },
++		{ "color12",      STRING,  &colorname[12] },
++		{ "color13",      STRING,  &colorname[13] },
++		{ "color14",      STRING,  &colorname[14] },
++		{ "color15",      STRING,  &colorname[15] },
++		{ "background",   STRING,  &colorname[256] },
++		{ "foreground",   STRING,  &colorname[257] },
++		{ "cursorColor",  STRING,  &colorname[258] },
++		{ "termname",     STRING,  &termname },
++		{ "shell",        STRING,  &shell },
++		{ "minlatency",   INTEGER, &minlatency },
++		{ "maxlatency",   INTEGER, &maxlatency },
++		{ "blinktimeout", INTEGER, &blinktimeout },
++		{ "bellvolume",   INTEGER, &bellvolume },
++		{ "tabspaces",    INTEGER, &tabspaces },
++		{ "borderpx",     INTEGER, &borderpx },
++		{ "cwscale",      FLOAT,   &cwscale },
++		{ "chscale",      FLOAT,   &chscale },
++};
++
+ /*
+  * Internal mouse shortcuts.
+  * Beware that overloading Button1 will disable the selection.
+diff --git a/x.c b/x.c
+index 210f184..76f167f 100644
+--- a/x.c
++++ b/x.c
+@@ -14,6 +14,7 @@
+ #include <X11/keysym.h>
+ #include <X11/Xft/Xft.h>
+ #include <X11/XKBlib.h>
++#include <X11/Xresource.h>
+ 
+ char *argv0;
+ #include "arg.h"
+@@ -45,6 +46,19 @@ typedef struct {
+ 	signed char appcursor; /* application cursor */
+ } Key;
+ 
++/* Xresources preferences */
++enum resource_type {
++	STRING = 0,
++	INTEGER = 1,
++	FLOAT = 2
++};
++
++typedef struct {
++	char *name;
++	enum resource_type type;
++	void *dst;
++} ResourcePref;
++
+ /* X modifiers */
+ #define XK_ANY_MOD    UINT_MAX
+ #define XK_NO_MOD     0
+@@ -828,8 +842,8 @@ xclear(int x1, int y1, int x2, int y2)
+ void
+ xhints(void)
+ {
+-	XClassHint class = {opt_name ? opt_name : termname,
+-	                    opt_class ? opt_class : termname};
++	XClassHint class = {opt_name ? opt_name : "st",
++	                    opt_class ? opt_class : "St"};
+ 	XWMHints wm = {.flags = InputHint, .input = 1};
+ 	XSizeHints *sizeh;
+ 
+@@ -1104,8 +1118,6 @@ xinit(int cols, int rows)
+ 	pid_t thispid = getpid();
+ 	XColor xmousefg, xmousebg;
+ 
+-	if (!(xw.dpy = XOpenDisplay(NULL)))
+-		die("can't open display\n");
+ 	xw.scr = XDefaultScreen(xw.dpy);
+ 	xw.vis = XDefaultVisual(xw.dpy, xw.scr);
+ 
+@@ -1964,6 +1976,59 @@ run(void)
+ 	}
+ }
+ 
++int
++resource_load(XrmDatabase db, char *name, enum resource_type rtype, void *dst)
++{
++	char **sdst = dst;
++	int *idst = dst;
++	float *fdst = dst;
++
++	char fullname[256];
++	char fullclass[256];
++	char *type;
++	XrmValue ret;
++
++	snprintf(fullname, sizeof(fullname), "%s.%s",
++			opt_name ? opt_name : "st", name);
++	snprintf(fullclass, sizeof(fullclass), "%s.%s",
++			opt_class ? opt_class : "St", name);
++	fullname[sizeof(fullname) - 1] = fullclass[sizeof(fullclass) - 1] = '\0';
++
++	XrmGetResource(db, fullname, fullclass, &type, &ret);
++	if (ret.addr == NULL || strncmp("String", type, 64))
++		return 1;
++
++	switch (rtype) {
++	case STRING:
++		*sdst = ret.addr;
++		break;
++	case INTEGER:
++		*idst = strtoul(ret.addr, NULL, 10);
++		break;
++	case FLOAT:
++		*fdst = strtof(ret.addr, NULL);
++		break;
++	}
++	return 0;
++}
++
++void
++config_init(void)
++{
++	char *resm;
++	XrmDatabase db;
++	ResourcePref *p;
++
++	XrmInitialize();
++	resm = XResourceManagerString(xw.dpy);
++	if (!resm)
++		return;
++
++	db = XrmGetStringDatabase(resm);
++	for (p = resources; p < resources + LEN(resources); p++)
++		resource_load(db, p->name, p->type, p->dst);
++}
++
+ void
+ usage(void)
+ {
+@@ -2037,6 +2102,11 @@ run:
+ 
+ 	setlocale(LC_CTYPE, "");
+ 	XSetLocaleModifiers("");
++
++	if(!(xw.dpy = XOpenDisplay(NULL)))
++		die("Can't open display\n");
++
++	config_init();
+ 	cols = MAX(cols, 1);
+ 	rows = MAX(rows, 1);
+ 	tnew(cols, rows);
+-- 
+2.26.2
+

st.c

@@ -16,6 +16,8 @@
 #include <termios.h>
 #include <unistd.h>
 #include <wchar.h>
+#include <X11/keysym.h>
+#include <X11/X.h>
 
 #include "st.h"
 #include "win.h"
@@ -35,6 +37,7 @@
 #define ESC_ARG_SIZ   16
 #define STR_BUF_SIZ   ESC_BUF_SIZ
 #define STR_ARG_SIZ   ESC_ARG_SIZ
+#define HISTSIZE      2000
 
 /* macros */
 #define IS_SET(flag)		((term.mode & (flag)) != 0)
@@ -42,6 +45,9 @@
 #define ISCONTROLC1(c)		(BETWEEN(c, 0x80, 0x9f))
 #define ISCONTROL(c)		(ISCONTROLC0(c) || ISCONTROLC1(c))
 #define ISDELIM(u)		(u && wcschr(worddelimiters, u))
+#define TLINE(y)		((y) < term.scr ? term.hist[((y) + term.histi - \
+				term.scr + HISTSIZE + 1) % HISTSIZE] : \
+				term.line[(y) - term.scr])
 
 enum term_mode {
 	MODE_WRAP        = 1 << 0,
@@ -115,6 +121,9 @@ typedef struct {
 	int col;      /* nb col */
 	Line *line;   /* screen */
 	Line *alt;    /* alternate screen */
+	Line hist[HISTSIZE]; /* history buffer */
+	int histi;    /* history index */
+	int scr;      /* scroll back */
 	int *dirty;   /* dirtyness of lines */
 	TCursor c;    /* cursor */
 	int ocx;      /* old cursor col */
@@ -185,8 +194,8 @@ static void tnewline(int);
 static void tputtab(int);
 static void tputc(Rune);
 static void treset(void);
-static void tscrollup(int, int);
-static void tscrolldown(int, int);
+static void tscrollup(int, int, int);
+static void tscrolldown(int, int, int);
 static void tsetattr(const int *, int);
 static void tsetchar(Rune, const Glyph *, int, int);
 static void tsetdirt(int, int);
@@ -409,10 +418,10 @@ tlinelen(int y)
 {
 	int i = term.col;
 
-	if (term.line[y][i - 1].mode & ATTR_WRAP)
+	if (TLINE(y)[i - 1].mode & ATTR_WRAP)
 		return i;
 
-	while (i > 0 && term.line[y][i - 1].u == ' ')
+	while (i > 0 && TLINE(y)[i - 1].u == ' ')
 		--i;
 
 	return i;
@@ -521,7 +530,7 @@ selsnap(int *x, int *y, int direction)
 		 * Snap around if the word wraps around at the end or
 		 * beginning of a line.
 		 */
-		prevgp = &term.line[*y][*x];
+		prevgp = &TLINE(*y)[*x];
 		prevdelim = ISDELIM(prevgp->u);
 		for (;;) {
 			newx = *x + direction;
@@ -536,14 +545,14 @@ selsnap(int *x, int *y, int direction)
 					yt = *y, xt = *x;
 				else
 					yt = newy, xt = newx;
-				if (!(term.line[yt][xt].mode & ATTR_WRAP))
+				if (!(TLINE(yt)[xt].mode & ATTR_WRAP))
 					break;
 			}
 
 			if (newx >= tlinelen(newy))
 				break;
 
-			gp = &term.line[newy][newx];
+			gp = &TLINE(newy)[newx];
 			delim = ISDELIM(gp->u);
 			if (!(gp->mode & ATTR_WDUMMY) && (delim != prevdelim
 					|| (delim && gp->u != prevgp->u)))
@@ -564,14 +573,14 @@ selsnap(int *x, int *y, int direction)
 		*x = (direction < 0) ? 0 : term.col - 1;
 		if (direction < 0) {
 			for (; *y > 0; *y += direction) {
-				if (!(term.line[*y-1][term.col-1].mode
+				if (!(TLINE(*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
+				if (!(TLINE(*y)[term.col-1].mode
 						& ATTR_WRAP)) {
 					break;
 				}
@@ -602,13 +611,13 @@ getsel(void)
 		}
 
 		if (sel.type == SEL_RECTANGULAR) {
-			gp = &term.line[y][sel.nb.x];
+			gp = &TLINE(y)[sel.nb.x];
 			lastx = sel.ne.x;
 		} else {
-			gp = &term.line[y][sel.nb.y == y ? sel.nb.x : 0];
+			gp = &TLINE(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)];
+		last = &TLINE(y)[MIN(lastx, linelen-1)];
 		while (last >= gp && last->u == ' ')
 			--last;
 
@@ -844,6 +853,9 @@ void
 ttywrite(const char *s, size_t n, int may_echo)
 {
 	const char *next;
+	Arg arg = (Arg) { .i = term.scr };
+
+	kscrolldown(&arg);
 
 	if (may_echo && IS_SET(MODE_ECHO))
 		twrite(s, n, 1);
@@ -1055,12 +1067,52 @@ tswapscreen(void)
 }
 
 void
-tscrolldown(int orig, int n)
+kscrolldown(const Arg* a)
+{
+	int n = a->i;
+
+	if (n < 0)
+		n = term.row + n;
+
+	if (n > term.scr)
+		n = term.scr;
+
+	if (term.scr > 0) {
+		term.scr -= n;
+		selscroll(0, -n);
+		tfulldirt();
+	}
+}
+
+void
+kscrollup(const Arg* a)
+{
+	int n = a->i;
+
+	if (n < 0)
+		n = term.row + n;
+
+	if (term.scr <= HISTSIZE-n) {
+		term.scr += n;
+		selscroll(0, n);
+		tfulldirt();
+	}
+}
+
+void
+tscrolldown(int orig, int n, int copyhist)
 {
 	int i;
 	Line temp;
 
 	LIMIT(n, 0, term.bot-orig+1);
+	if (copyhist) {
+		term.histi = (term.histi - 1 + HISTSIZE) % HISTSIZE;
+		temp = term.hist[term.histi];
+		term.hist[term.histi] = term.line[term.bot];
+		term.line[term.bot] = temp;
+	}
+
 
 	tsetdirt(orig, term.bot-n);
 	tclearregion(0, term.bot-n+1, term.col-1, term.bot);
@@ -1071,17 +1123,28 @@ tscrolldown(int orig, int n)
 		term.line[i-n] = temp;
 	}
 
-	selscroll(orig, n);
+	if (term.scr == 0)
+		selscroll(orig, n);
 }
 
 void
-tscrollup(int orig, int n)
+tscrollup(int orig, int n, int copyhist)
 {
 	int i;
 	Line temp;
 
 	LIMIT(n, 0, term.bot-orig+1);
 
+	if (copyhist) {
+		term.histi = (term.histi + 1) % HISTSIZE;
+		temp = term.hist[term.histi];
+		term.hist[term.histi] = term.line[orig];
+		term.line[orig] = temp;
+	}
+
+	if (term.scr > 0 && term.scr < HISTSIZE)
+		term.scr = MIN(term.scr + n, HISTSIZE-1);
+
 	tclearregion(0, orig, term.col-1, orig+n-1);
 	tsetdirt(orig+n, term.bot);
 
@@ -1091,7 +1154,8 @@ tscrollup(int orig, int n)
 		term.line[i+n] = temp;
 	}
 
-	selscroll(orig, -n);
+	if (term.scr == 0)
+		selscroll(orig, -n);
 }
 
 void
@@ -1120,7 +1184,7 @@ tnewline(int first_col)
 	int y = term.c.y;
 
 	if (y == term.bot) {
-		tscrollup(term.top, 1);
+		tscrollup(term.top, 1, 1);
 	} else {
 		y++;
 	}
@@ -1132,6 +1196,7 @@ csiparse(void)
 {
 	char *p = csiescseq.buf, *np;
 	long int v;
+	int sep = ';'; /* colon or semi-colon, but not both */
 
 	csiescseq.narg = 0;
 	if (*p == '?') {
@@ -1149,7 +1214,9 @@ csiparse(void)
 			v = -1;
 		csiescseq.arg[csiescseq.narg++] = v;
 		p = np;
-		if (*p != ';' || csiescseq.narg == ESC_ARG_SIZ)
+		if (sep == ';' && *p == ':')
+			sep = ':'; /* allow override to colon once */
+		if (*p != sep || csiescseq.narg == ESC_ARG_SIZ)
 			break;
 		p++;
 	}
@@ -1215,6 +1282,9 @@ tsetchar(Rune u, const Glyph *attr, int x, int y)
 	term.dirty[y] = 1;
 	term.line[y][x] = *attr;
 	term.line[y][x].u = u;
+
+	if (isboxdraw(u))
+		term.line[y][x].mode |= ATTR_BOXDRAW;
 }
 
 void
@@ -1285,14 +1355,14 @@ void
 tinsertblankline(int n)
 {
 	if (BETWEEN(term.c.y, term.top, term.bot))
-		tscrolldown(term.c.y, n);
+		tscrolldown(term.c.y, n, 0);
 }
 
 void
 tdeleteline(int n)
 {
 	if (BETWEEN(term.c.y, term.top, term.bot))
-		tscrollup(term.c.y, n);
+		tscrollup(term.c.y, n, 0);
 }
 
 int32_t
@@ -1643,7 +1713,7 @@ csihandle(void)
 			ttywrite(vtiden, strlen(vtiden), 0);
 		break;
 	case 'b': /* REP -- if last char is printable print it <n> more times */
-		DEFAULT(csiescseq.arg[0], 1);
+		LIMIT(csiescseq.arg[0], 1, 65535);
 		if (term.lastc)
 			while (csiescseq.arg[0]-- > 0)
 				tputc(term.lastc);
@@ -1730,11 +1800,11 @@ csihandle(void)
 	case 'S': /* SU -- Scroll <n> line up */
 		if (csiescseq.priv) break;
 		DEFAULT(csiescseq.arg[0], 1);
-		tscrollup(term.top, csiescseq.arg[0]);
+		tscrollup(term.top, csiescseq.arg[0], 0);
 		break;
 	case 'T': /* SD -- Scroll <n> line down */
 		DEFAULT(csiescseq.arg[0], 1);
-		tscrolldown(term.top, csiescseq.arg[0]);
+		tscrolldown(term.top, csiescseq.arg[0], 0);
 		break;
 	case 'L': /* IL -- Insert <n> blank lines */
 		DEFAULT(csiescseq.arg[0], 1);
@@ -2306,7 +2376,7 @@ eschandle(uchar ascii)
 		return 0;
 	case 'D': /* IND -- Linefeed */
 		if (term.c.y == term.bot) {
-			tscrollup(term.top, 1);
+			tscrollup(term.top, 1, 1);
 		} else {
 			tmoveto(term.c.x, term.c.y+1);
 		}
@@ -2319,7 +2389,7 @@ eschandle(uchar ascii)
 		break;
 	case 'M': /* RI -- Reverse index */
 		if (term.c.y == term.top) {
-			tscrolldown(term.top, 1);
+			tscrolldown(term.top, 1, 1);
 		} else {
 			tmoveto(term.c.x, term.c.y-1);
 		}
@@ -2542,12 +2612,15 @@ twrite(const char *buf, int buflen, int show_ctrl)
 void
 tresize(int col, int row)
 {
-	int i;
+	int i, j;
 	int minrow = MIN(row, term.row);
 	int mincol = MIN(col, term.col);
 	int *bp;
 	TCursor c;
 
+	if ( row < term.row  || col < term.col )
+        toggle_winmode(trt_kbdselect(XK_Escape, NULL, 0));
+
 	if (col < 1 || row < 1) {
 		fprintf(stderr,
 		        "tresize: error resizing to %dx%d\n", col, row);
@@ -2579,6 +2652,14 @@ tresize(int col, int row)
 	term.dirty = xrealloc(term.dirty, row * sizeof(*term.dirty));
 	term.tabs = xrealloc(term.tabs, col * sizeof(*term.tabs));
 
+	for (i = 0; i < HISTSIZE; i++) {
+		term.hist[i] = xrealloc(term.hist[i], col * sizeof(Glyph));
+		for (j = mincol; j < col; j++) {
+			term.hist[i][j] = term.c.attr;
+			term.hist[i][j].u = ' ';
+		}
+	}
+
 	/* resize each row to new width, zero-pad if needed */
 	for (i = 0; i < minrow; i++) {
 		term.line[i] = xrealloc(term.line[i], col * sizeof(Glyph));
@@ -2637,7 +2718,7 @@ drawregion(int x1, int y1, int x2, int y2)
 			continue;
 
 		term.dirty[y] = 0;
-		xdrawline(term.line[y], x1, y, x2);
+		xdrawline(TLINE(y), x1, y, x2);
 	}
 }
 
@@ -2658,8 +2739,9 @@ draw(void)
 		cx--;
 
 	drawregion(0, 0, term.col, term.row);
-	xdrawcursor(cx, term.c.y, term.line[term.c.y][cx],
-			term.ocx, term.ocy, term.line[term.ocy][term.ocx]);
+	if (term.scr == 0)
+		xdrawcursor(cx, term.c.y, term.line[term.c.y][cx],
+				term.ocx, term.ocy, term.line[term.ocy][term.ocx]);
 	term.ocx = cx;
 	term.ocy = term.c.y;
 	xfinishdraw();
@@ -2673,3 +2755,220 @@ redraw(void)
 	tfulldirt();
 	draw();
 }
+
+void set_notifmode(int type, KeySym ksym) {
+    static char *lib[] = { " MOVE ", " SEL  "};
+    static Glyph *g, *deb, *fin;
+    static int col, bot;
+
+    if ( ksym == -1 ) {
+        free(g);
+        col = term.col, bot = term.bot;
+        g = xmalloc(col * sizeof(Glyph));
+        memcpy(g, term.line[bot], col * sizeof(Glyph));
+    
+    }
+    else if ( ksym == -2 )
+        memcpy(term.line[bot], g, col * sizeof(Glyph));
+
+    if ( type < 2 ) {
+        char *z = lib[type];
+        for (deb = &term.line[bot][col - 6], fin = &term.line[bot][col]; deb < fin; z++, deb++)
+            deb->mode = ATTR_REVERSE,
+            deb->u = *z,
+            deb->fg = defaultfg, deb->bg = defaultbg;
+    }
+    else if ( type < 5 )
+        memcpy(term.line[bot], g, col * sizeof(Glyph));
+    else {
+        for (deb = &term.line[bot][0], fin = &term.line[bot][col]; deb < fin; deb++)
+            deb->mode = ATTR_REVERSE,
+            deb->u = ' ',
+            deb->fg = defaultfg, deb->bg = defaultbg;
+        term.line[bot][0].u = ksym;
+    }
+
+    term.dirty[bot] = 1;
+    drawregion(0, bot, col, bot + 1);
+}
+
+void select_or_drawcursor(int selectsearch_mode, int type) {
+    int done = 0;
+
+    if ( selectsearch_mode & 1 ) {
+        selextend(term.c.x, term.c.y, type, done);
+        xsetsel(getsel());
+    }
+    else
+        xdrawcursor(term.c.x, term.c.y, term.line[term.c.y][term.c.x],
+                    term.ocx, term.ocy, term.line[term.ocy][term.ocx]);
+}
+
+void search(int selectsearch_mode, Rune *target, int ptarget, int incr, int type, TCursor *cu) {
+    Rune *r;
+    int i, bound = (term.col * cu->y + cu->x) * (incr > 0) + incr;
+
+    for (i = term.col * term.c.y + term.c.x + incr; i != bound; i += incr) {
+        for (r = target; r - target < ptarget; r++) {
+            if ( *r == term.line[(i + r - target) / term.col][(i + r - target) % term.col].u ) {
+                if ( r - target == ptarget - 1 )     break;
+            } else {
+                r = NULL;
+                break;
+            }
+        }
+        if ( r != NULL )    break;
+    }
+        
+    if ( i != bound ) {
+        term.c.y = i / term.col, term.c.x = i % term.col;
+        select_or_drawcursor(selectsearch_mode, type);
+    }
+}
+
+int trt_kbdselect(KeySym ksym, char *buf, int len) {
+    static TCursor cu;
+    static Rune target[64];
+    static int type = 1, ptarget, in_use;
+    static int sens, quant;
+    static char selectsearch_mode;
+    int i, bound, *xy;
+    
+    
+    if ( selectsearch_mode & 2 ) {
+		if ( ksym == XK_Return ) {
+			selectsearch_mode ^= 2;
+			set_notifmode(selectsearch_mode, -2);
+            if ( ksym == XK_Escape )    ptarget = 0;
+			return 0;
+		}
+        else if ( ksym == XK_BackSpace ) {
+            if ( !ptarget )     return 0;
+            term.line[term.bot][ptarget--].u = ' ';
+		}
+        else if ( len < 1 ) {
+			return 0;
+		}
+        else if ( ptarget == term.col  || ksym == XK_Escape ) {
+            return 0;
+        }
+		else {
+            utf8decode(buf, &target[ptarget++], len);
+            term.line[term.bot][ptarget].u = target[ptarget - 1];
+		}
+
+        if ( ksym != XK_BackSpace )
+            search(selectsearch_mode, &target[0], ptarget, sens, type, &cu);
+
+        term.dirty[term.bot] = 1; 
+        drawregion(0, term.bot, term.col, term.bot + 1);
+        return 0;
+    }
+
+    switch ( ksym ) {
+    case -1 :
+        in_use = 1;
+        cu.x = term.c.x, cu.y = term.c.y;
+        set_notifmode(0, ksym);
+        return MODE_KBDSELECT;
+    case XK_s :
+        if ( selectsearch_mode & 1 )
+            selclear();
+        else
+            selstart(term.c.x, term.c.y, 0);
+        set_notifmode(selectsearch_mode ^= 1, ksym);
+        break;
+    case XK_t :
+        selextend(term.c.x, term.c.y, type ^= 3, i = 0);  /* 2 fois */
+        selextend(term.c.x, term.c.y, type, i = 0);
+        break;
+    case XK_slash :
+    case XK_KP_Divide :
+    case XK_question :
+        ksym &= XK_question;                /* Divide to slash */
+        sens = (ksym == XK_slash) ? -1 : 1;
+        ptarget = 0;
+        set_notifmode(15, ksym);
+        selectsearch_mode ^= 2;
+        break;
+    case XK_Escape :
+        if ( !in_use )  break;
+        selclear();
+    case XK_Return :
+        set_notifmode(4, ksym);
+        term.c.x = cu.x, term.c.y = cu.y;
+        select_or_drawcursor(selectsearch_mode = 0, type);
+        in_use = quant = 0;
+        return MODE_KBDSELECT;
+    case XK_n :
+    case XK_N :
+        if ( ptarget )
+            search(selectsearch_mode, &target[0], ptarget, (ksym == XK_n) ? -1 : 1, type, &cu);
+        break;
+    case XK_BackSpace :
+        term.c.x = 0;
+        select_or_drawcursor(selectsearch_mode, type);
+        break;
+    case XK_dollar :
+        term.c.x = term.col - 1;
+        select_or_drawcursor(selectsearch_mode, type);
+        break;
+    case XK_Home :
+        term.c.x = 0, term.c.y = 0;
+        select_or_drawcursor(selectsearch_mode, type);
+        break;
+    case XK_End :
+        term.c.x = cu.x, term.c.y = cu.y;
+        select_or_drawcursor(selectsearch_mode, type);
+        break;
+    case XK_Page_Up :
+    case XK_Page_Down :
+        term.c.y = (ksym == XK_Prior ) ? 0 : cu.y;
+        select_or_drawcursor(selectsearch_mode, type);
+        break;
+    case XK_exclam :
+        term.c.x = term.col >> 1;
+        select_or_drawcursor(selectsearch_mode, type);
+        break;
+    case XK_asterisk :
+    case XK_KP_Multiply :
+        term.c.x = term.col >> 1;
+    case XK_underscore :
+        term.c.y = cu.y >> 1;
+        select_or_drawcursor(selectsearch_mode, type);
+        break;
+    default :
+        if ( ksym >= XK_0 && ksym <= XK_9 ) {               /* 0-9 keyboard */
+            quant = (quant * 10) + (ksym ^ XK_0);
+            return 0;
+        }
+        else if ( ksym >= XK_KP_0 && ksym <= XK_KP_9 ) {    /* 0-9 numpad */
+            quant = (quant * 10) + (ksym ^ XK_KP_0);
+            return 0;
+        }
+        else if ( ksym == XK_k || ksym == XK_h )
+            i = ksym & 1;
+        else if ( ksym == XK_l || ksym == XK_j )
+            i = ((ksym & 6) | 4) >> 1;
+        else if ( (XK_Home & ksym) != XK_Home || (i = (ksym ^ XK_Home) - 1) > 3 )
+            break;
+
+        xy = (i & 1) ? &term.c.y : &term.c.x;
+        sens = (i & 2) ? 1 : -1;
+        bound = (i >> 1 ^ 1) ? 0 : (i ^ 3) ? term.col - 1 : term.bot;
+
+        if ( quant == 0 )
+            quant++;
+
+        if ( *xy == bound && ((sens < 0 && bound == 0) || (sens > 0 && bound > 0)) )
+            break;
+
+        *xy += quant * sens;
+        if ( *xy < 0 || ( bound > 0 && *xy > bound) )
+            *xy = bound;
+
+        select_or_drawcursor(selectsearch_mode, type);
+    }
+    quant = 0;
+    return 0;
+}

st.h

@@ -33,9 +33,16 @@ enum glyph_attribute {
 	ATTR_WRAP       = 1 << 8,
 	ATTR_WIDE       = 1 << 9,
 	ATTR_WDUMMY     = 1 << 10,
+	ATTR_BOXDRAW    = 1 << 11,
 	ATTR_BOLD_FAINT = ATTR_BOLD | ATTR_FAINT,
 };
 
+enum drawing_mode {
+    DRAW_NONE = 0,
+    DRAW_BG = 1 << 0,
+    DRAW_FG = 1 << 1,
+};
+
 enum selection_mode {
 	SEL_IDLE = 0,
 	SEL_EMPTY = 1,
@@ -81,6 +88,8 @@ void die(const char *, ...);
 void redraw(void);
 void draw(void);
 
+void kscrolldown(const Arg *);
+void kscrollup(const Arg *);
 void printscreen(const Arg *);
 void printsel(const Arg *);
 void sendbreak(const Arg *);
@@ -110,6 +119,15 @@ size_t utf8encode(Rune, char *);
 void *xmalloc(size_t);
 void *xrealloc(void *, size_t);
 char *xstrdup(const char *);
+int trt_kbdselect(KeySym, char *, int);
+
+int isboxdraw(Rune);
+ushort boxdrawindex(const Glyph *);
+#ifdef XFT_VERSION
+/* only exposed to x.c, otherwise we'll need Xft.h for the types */
+void boxdraw_xinit(Display *, Colormap, XftDraw *, Visual *);
+void drawboxes(int, int, int, int, XftColor *, XftColor *, const XftGlyphFontSpec *, int);
+#endif
 
 /* config.h globals */
 extern char *utmp;
@@ -124,3 +142,6 @@ extern unsigned int tabspaces;
 extern unsigned int defaultfg;
 extern unsigned int defaultbg;
 extern unsigned int defaultcs;
+extern const int boxdraw, boxdraw_bold, boxdraw_braille;
+extern float alpha;
+extern float alpha_def;

win.h

@@ -21,6 +21,7 @@ enum win_mode {
 	MODE_NUMLOCK     = 1 << 17,
 	MODE_MOUSE       = MODE_MOUSEBTN|MODE_MOUSEMOTION|MODE_MOUSEX10\
 	                  |MODE_MOUSEMANY,
+    MODE_KBDSELECT   = 1 << 18,
 };
 
 void xbell(void);
@@ -38,4 +39,6 @@ void xsetmode(int, unsigned int);
 void xsetpointermotion(int);
 void xsetsel(char *);
 int xstartdraw(void);
+void toggle_winmode(int);
+void keyboard_select(const Arg *);
 void xximspot(int, int);

x.c

@@ -14,6 +14,7 @@
 #include <X11/keysym.h>
 #include <X11/Xft/Xft.h>
 #include <X11/XKBlib.h>
+#include <X11/Xresource.h>
 
 char *argv0;
 #include "arg.h"
@@ -45,6 +46,19 @@ typedef struct {
 	signed char appcursor; /* application cursor */
 } Key;
 
+/* Xresources preferences */
+enum resource_type {
+	STRING = 0,
+	INTEGER = 1,
+	FLOAT = 2
+};
+
+typedef struct {
+	char *name;
+	enum resource_type type;
+	void *dst;
+} ResourcePref;
+
 /* X modifiers */
 #define XK_ANY_MOD    UINT_MAX
 #define XK_NO_MOD     0
@@ -59,6 +73,7 @@ static void zoom(const Arg *);
 static void zoomabs(const Arg *);
 static void zoomreset(const Arg *);
 static void ttysend(const Arg *);
+static void chgalpha(const Arg *);
 
 /* config.h for applying patches and the configuration. */
 #include "config.h"
@@ -105,6 +120,7 @@ typedef struct {
 	XSetWindowAttributes attrs;
 	int scr;
 	int isfixed; /* is fixed geometry? */
+	int depth; /* bit depth */
 	int l, t; /* left and top offset */
 	int gm; /* geometry mask */
 } XWindow;
@@ -142,7 +158,7 @@ typedef struct {
 
 static inline ushort sixd_to_16bit(int);
 static int xmakeglyphfontspecs(XftGlyphFontSpec *, const Glyph *, int, int, int);
-static void xdrawglyphfontspecs(const XftGlyphFontSpec *, Glyph, int, int, int);
+static void xdrawglyphfontspecs(const XftGlyphFontSpec *, Glyph, int, int, int, int);
 static void xdrawglyph(Glyph, int, int);
 static void xclear(int, int, int, int);
 static int xgeommasktogravity(int);
@@ -157,6 +173,8 @@ static void xhints(void);
 static int xloadcolor(int, const char *, Color *);
 static int xloadfont(Font *, FcPattern *);
 static void xloadfonts(const char *, double);
+static int xloadsparefont(FcPattern *, int);
+static void xloadsparefonts(void);
 static void xunloadfont(Font *);
 static void xunloadfonts(void);
 static void xsetenv(void);
@@ -243,6 +261,7 @@ static char *usedfont = NULL;
 static double usedfontsize = 0;
 static double defaultfontsize = 0;
 
+static char *opt_alpha = NULL;
 static char *opt_class = NULL;
 static char **opt_cmd  = NULL;
 static char *opt_embed = NULL;
@@ -306,6 +325,7 @@ zoomabs(const Arg *arg)
 {
 	xunloadfonts();
 	xloadfonts(usedfont, arg->f);
+	xloadsparefonts();
 	cresize(0, 0);
 	redraw();
 	xhints();
@@ -752,7 +772,7 @@ xresize(int col, int row)
 
 	XFreePixmap(xw.dpy, xw.buf);
 	xw.buf = XCreatePixmap(xw.dpy, xw.win, win.w, win.h,
-			DefaultDepth(xw.dpy, xw.scr));
+			xw.depth);
 	XftDrawChange(xw.draw, xw.buf);
 	xclear(0, 0, win.w, win.h);
 
@@ -812,6 +832,13 @@ xloadcols(void)
 			else
 				die("could not allocate color %d\n", i);
 		}
+
+	/* set alpha value of bg color */
+	if (opt_alpha)
+		alpha = strtof(opt_alpha, NULL);
+	dc.col[defaultbg].color.alpha = (unsigned short)(0xffff * alpha);
+	dc.col[defaultbg].pixel &= 0x00FFFFFF;
+	dc.col[defaultbg].pixel |= (unsigned char)(0xff * alpha) << 24;
 	loaded = 1;
 }
 
@@ -859,8 +886,8 @@ xclear(int x1, int y1, int x2, int y2)
 void
 xhints(void)
 {
-	XClassHint class = {opt_name ? opt_name : termname,
-	                    opt_class ? opt_class : termname};
+	XClassHint class = {opt_name ? opt_name : "st",
+	                    opt_class ? opt_class : "St"};
 	XWMHints wm = {.flags = InputHint, .input = 1};
 	XSizeHints *sizeh;
 
@@ -1050,6 +1077,101 @@ xloadfonts(const char *fontstr, double fontsize)
 	FcPatternDestroy(pattern);
 }
 
+int
+xloadsparefont(FcPattern *pattern, int flags)
+{
+	FcPattern *match;
+	FcResult result;
+
+	match = FcFontMatch(NULL, pattern, &result);
+	if (!match) {
+		return 1;
+	}
+
+	if (!(frc[frclen].font = XftFontOpenPattern(xw.dpy, match))) {
+		FcPatternDestroy(match);
+		return 1;
+	}
+
+	frc[frclen].flags = flags;
+	/* Believe U+0000 glyph will present in each default font */
+	frc[frclen].unicodep = 0;
+	frclen++;
+
+	return 0;
+}
+
+void
+xloadsparefonts(void)
+{
+	FcPattern *pattern;
+	double sizeshift, fontval;
+	int fc;
+	char **fp;
+
+	if (frclen != 0)
+		die("can't embed spare fonts. cache isn't empty");
+
+	/* Calculate count of spare fonts */
+	fc = sizeof(font2) / sizeof(*font2);
+	if (fc == 0)
+		return;
+
+	/* Allocate memory for cache entries. */
+	if (frccap < 4 * fc) {
+		frccap += 4 * fc - frccap;
+		frc = xrealloc(frc, frccap * sizeof(Fontcache));
+	}
+
+	for (fp = font2; fp - font2 < fc; ++fp) {
+
+		if (**fp == '-')
+			pattern = XftXlfdParse(*fp, False, False);
+		else
+			pattern = FcNameParse((FcChar8 *)*fp);
+
+		if (!pattern)
+			die("can't open spare font %s\n", *fp);
+
+		if (defaultfontsize > 0) {
+			sizeshift = usedfontsize - defaultfontsize;
+			if (sizeshift != 0 &&
+					FcPatternGetDouble(pattern, FC_PIXEL_SIZE, 0, &fontval) ==
+					FcResultMatch) {
+				fontval += sizeshift;
+				FcPatternDel(pattern, FC_PIXEL_SIZE);
+				FcPatternDel(pattern, FC_SIZE);
+				FcPatternAddDouble(pattern, FC_PIXEL_SIZE, fontval);
+			}
+		}
+
+		FcPatternAddBool(pattern, FC_SCALABLE, 1);
+
+		FcConfigSubstitute(NULL, pattern, FcMatchPattern);
+		XftDefaultSubstitute(xw.dpy, xw.scr, pattern);
+
+		if (xloadsparefont(pattern, FRC_NORMAL))
+			die("can't open spare font %s\n", *fp);
+
+		FcPatternDel(pattern, FC_SLANT);
+		FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ITALIC);
+		if (xloadsparefont(pattern, FRC_ITALIC))
+			die("can't open spare font %s\n", *fp);
+
+		FcPatternDel(pattern, FC_WEIGHT);
+		FcPatternAddInteger(pattern, FC_WEIGHT, FC_WEIGHT_BOLD);
+		if (xloadsparefont(pattern, FRC_ITALICBOLD))
+			die("can't open spare font %s\n", *fp);
+
+		FcPatternDel(pattern, FC_SLANT);
+		FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ROMAN);
+		if (xloadsparefont(pattern, FRC_BOLD))
+			die("can't open spare font %s\n", *fp);
+
+		FcPatternDestroy(pattern);
+	}
+}
+
 void
 xunloadfont(Font *f)
 {
@@ -1134,11 +1256,21 @@ xinit(int cols, int rows)
 	Window parent;
 	pid_t thispid = getpid();
 	XColor xmousefg, xmousebg;
+	XWindowAttributes attr;
+	XVisualInfo vis;
 
-	if (!(xw.dpy = XOpenDisplay(NULL)))
-		die("can't open display\n");
 	xw.scr = XDefaultScreen(xw.dpy);
-	xw.vis = XDefaultVisual(xw.dpy, xw.scr);
+
+	if (!(opt_embed && (parent = strtol(opt_embed, NULL, 0)))) {
+		parent = XRootWindow(xw.dpy, xw.scr);
+		xw.depth = 32;
+	} else {
+		XGetWindowAttributes(xw.dpy, parent, &attr);
+		xw.depth = attr.depth;
+	}
+
+	XMatchVisualInfo(xw.dpy, xw.scr, xw.depth, TrueColor, &vis);
+	xw.vis = vis.visual;
 
 	/* font */
 	if (!FcInit())
@@ -1147,8 +1279,14 @@ xinit(int cols, int rows)
 	usedfont = (opt_font == NULL)? font : opt_font;
 	xloadfonts(usedfont, 0);
 
+	/* spare fonts */
+	xloadsparefonts();
+
+   /* Backup default alpha value */
+   alpha_def = alpha;
+
 	/* colors */
-	xw.cmap = XDefaultColormap(xw.dpy, xw.scr);
+	xw.cmap = XCreateColormap(xw.dpy, parent, xw.vis, None);
 	xloadcols();
 
 	/* adjust fixed window geometry */
@@ -1168,19 +1306,15 @@ xinit(int cols, int rows)
 		| ButtonMotionMask | ButtonPressMask | ButtonReleaseMask;
 	xw.attrs.colormap = xw.cmap;
 
-	if (!(opt_embed && (parent = strtol(opt_embed, NULL, 0))))
-		parent = XRootWindow(xw.dpy, xw.scr);
 	xw.win = XCreateWindow(xw.dpy, parent, xw.l, xw.t,
-			win.w, win.h, 0, XDefaultDepth(xw.dpy, xw.scr), InputOutput,
+			win.w, win.h, 0, xw.depth, InputOutput,
 			xw.vis, CWBackPixel | CWBorderPixel | CWBitGravity
 			| CWEventMask | CWColormap, &xw.attrs);
 
 	memset(&gcvalues, 0, sizeof(gcvalues));
 	gcvalues.graphics_exposures = False;
-	dc.gc = XCreateGC(xw.dpy, parent, GCGraphicsExposures,
-			&gcvalues);
-	xw.buf = XCreatePixmap(xw.dpy, xw.win, win.w, win.h,
-			DefaultDepth(xw.dpy, xw.scr));
+	xw.buf = XCreatePixmap(xw.dpy, xw.win, win.w, win.h, xw.depth);
+	dc.gc = XCreateGC(xw.dpy, xw.buf, GCGraphicsExposures, &gcvalues);
 	XSetForeground(xw.dpy, dc.gc, dc.col[defaultbg].pixel);
 	XFillRectangle(xw.dpy, xw.buf, dc.gc, 0, 0, win.w, win.h);
 
@@ -1237,6 +1371,8 @@ xinit(int cols, int rows)
 	xsel.xtarget = XInternAtom(xw.dpy, "UTF8_STRING", 0);
 	if (xsel.xtarget == None)
 		xsel.xtarget = XA_STRING;
+
+	boxdraw_xinit(xw.dpy, xw.cmap, xw.draw, xw.vis);
 }
 
 int
@@ -1283,8 +1419,13 @@ xmakeglyphfontspecs(XftGlyphFontSpec *specs, const Glyph *glyphs, int len, int x
 			yp = winy + font->ascent;
 		}
 
-		/* Lookup character index with default font. */
-		glyphidx = XftCharIndex(xw.dpy, font->match, rune);
+		if (mode & ATTR_BOXDRAW) {
+			/* minor shoehorning: boxdraw uses only this ushort */
+			glyphidx = boxdrawindex(&glyphs[i]);
+		} else {
+			/* Lookup character index with default font. */
+			glyphidx = XftCharIndex(xw.dpy, font->match, rune);
+		}
 		if (glyphidx) {
 			specs[numspecs].font = font->match;
 			specs[numspecs].glyph = glyphidx;
@@ -1372,7 +1513,25 @@ xmakeglyphfontspecs(XftGlyphFontSpec *specs, const Glyph *glyphs, int len, int x
 }
 
 void
-xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, int x, int y)
+chgalpha(const Arg *arg)
+{
+   if (arg->f == -1.0f && alpha >= 0.1f)
+      alpha -= 0.1f;
+   else if (arg->f == 1.0f && alpha < 1.0f)
+      alpha += 0.1f;
+   else if (arg->f == 0.0f)
+      alpha = alpha_def;
+   else
+      return;
+
+   dc.col[defaultbg].color.alpha = (unsigned short)(0xFFFF * alpha);
+   /* Required to remove artifacting from borderpx */
+   cresize(0, 0);
+   redraw();
+}
+
+void
+xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, int x, int y, int dmode)
 {
 	int charlen = len * ((base.mode & ATTR_WIDE) ? 2 : 1);
 	int winx = borderpx + x * win.cw, winy = borderpx + y * win.ch,
@@ -1463,47 +1622,44 @@ xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, int x, i
 	if (base.mode & ATTR_INVISIBLE)
 		fg = bg;
 
-	/* Intelligent cleaning up of the borders. */
-	if (x == 0) {
-		xclear(0, (y == 0)? 0 : winy, borderpx,
-			winy + win.ch +
-			((winy + win.ch >= borderpx + win.th)? win.h : 0));
-	}
-	if (winx + width >= borderpx + win.tw) {
-		xclear(winx + width, (y == 0)? 0 : winy, win.w,
-			((winy + win.ch >= borderpx + win.th)? win.h : (winy + win.ch)));
-	}
-	if (y == 0)
-		xclear(winx, 0, winx + width, borderpx);
-	if (winy + win.ch >= borderpx + win.th)
-		xclear(winx, winy + win.ch, winx + width, win.h);
+    if (dmode & DRAW_BG) {
+        /* Intelligent cleaning up of the borders. */
+        if (x == 0) {
+            xclear(0, (y == 0)? 0 : winy, borderpx,
+                   winy + win.ch +
+                   ((winy + win.ch >= borderpx + win.th)? win.h : 0));
+        }
+        if (winx + width >= borderpx + win.tw) {
+            xclear(winx + width, (y == 0)? 0 : winy, win.w,
+                   ((winy + win.ch >= borderpx + win.th)? win.h : (winy + win.ch)));
+        }
+        if (y == 0)
+            xclear(winx, 0, winx + width, borderpx);
+        if (winy + win.ch >= borderpx + win.th)
+            xclear(winx, winy + win.ch, winx + width, win.h);
+        /* Fill the background */
+        XftDrawRect(xw.draw, bg, winx, winy, width, win.ch);
+    }
 
-	/* Clean up the region we want to draw to. */
-	XftDrawRect(xw.draw, bg, winx, winy, width, win.ch);
+    if (dmode & DRAW_FG) {
+	    if (base.mode & ATTR_BOXDRAW) {
+		    drawboxes(winx, winy, width / len, win.ch, fg, bg, specs, len);
+	    } else {
+		    /* Render the glyphs. */
+		    XftDrawGlyphFontSpec(xw.draw, fg, specs, len);
+	    }
 
-	/* Set the clip region because Xft is sometimes dirty. */
-	r.x = 0;
-	r.y = 0;
-	r.height = win.ch;
-	r.width = width;
-	XftDrawSetClipRectangles(xw.draw, winx, winy, &r, 1);
+        /* Render underline and strikethrough. */
+        if (base.mode & ATTR_UNDERLINE) {
+            XftDrawRect(xw.draw, fg, winx, winy + dc.font.ascent + 1,
+                        width, 1);
+        }
 
-	/* Render the glyphs. */
-	XftDrawGlyphFontSpec(xw.draw, fg, specs, len);
-
-	/* Render underline and strikethrough. */
-	if (base.mode & ATTR_UNDERLINE) {
-		XftDrawRect(xw.draw, fg, winx, winy + dc.font.ascent * chscale + 1,
-				width, 1);
-	}
-
-	if (base.mode & ATTR_STRUCK) {
-		XftDrawRect(xw.draw, fg, winx, winy + 2 * dc.font.ascent * chscale / 3,
-				width, 1);
-	}
-
-	/* Reset clip to none. */
-	XftDrawSetClip(xw.draw, 0);
+        if (base.mode & ATTR_STRUCK) {
+            XftDrawRect(xw.draw, fg, winx, winy + 2 * dc.font.ascent / 3,
+                        width, 1);
+        }
+    }
 }
 
 void
@@ -1513,7 +1669,7 @@ xdrawglyph(Glyph g, int x, int y)
 	XftGlyphFontSpec spec;
 
 	numspecs = xmakeglyphfontspecs(&spec, &g, 1, x, y);
-	xdrawglyphfontspecs(&spec, g, numspecs, x, y);
+	xdrawglyphfontspecs(&spec, g, numspecs, x, y, DRAW_BG | DRAW_FG);
 }
 
 void
@@ -1532,7 +1688,7 @@ xdrawcursor(int cx, int cy, Glyph g, int ox, int oy, Glyph og)
 	/*
 	 * Select the right color for the right mode.
 	 */
-	g.mode &= ATTR_BOLD|ATTR_ITALIC|ATTR_UNDERLINE|ATTR_STRUCK|ATTR_WIDE;
+	g.mode &= ATTR_BOLD|ATTR_ITALIC|ATTR_UNDERLINE|ATTR_STRUCK|ATTR_WIDE|ATTR_BOXDRAW;
 
 	if (IS_SET(MODE_REVERSE)) {
 		g.mode |= ATTR_REVERSE;
@@ -1617,6 +1773,9 @@ xseticontitle(char *p)
 	XTextProperty prop;
 	DEFAULT(p, opt_title);
 
+	if (p[0] == '\0')
+		p = opt_title;
+
 	if (Xutf8TextListToTextProperty(xw.dpy, &p, 1, XUTF8StringStyle,
 	                                &prop) != Success)
 		return;
@@ -1631,6 +1790,9 @@ xsettitle(char *p)
 	XTextProperty prop;
 	DEFAULT(p, opt_title);
 
+	if (p[0] == '\0')
+		p = opt_title;
+
 	if (Xutf8TextListToTextProperty(xw.dpy, &p, 1, XUTF8StringStyle,
 	                                &prop) != Success)
 		return;
@@ -1648,32 +1810,39 @@ xstartdraw(void)
 void
 xdrawline(Line line, int x1, int y1, int x2)
 {
-	int i, x, ox, numspecs;
+	int i, x, ox, numspecs, numspecs_cached;
 	Glyph base, new;
-	XftGlyphFontSpec *specs = xw.specbuf;
+	XftGlyphFontSpec *specs;
 
-	numspecs = xmakeglyphfontspecs(specs, &line[x1], x2 - x1, x1, y1);
-	i = ox = 0;
-	for (x = x1; x < x2 && i < numspecs; x++) {
-		new = line[x];
-		if (new.mode == ATTR_WDUMMY)
-			continue;
-		if (selected(x, y1))
-			new.mode ^= ATTR_REVERSE;
-		if (i > 0 && ATTRCMP(base, new)) {
-			xdrawglyphfontspecs(specs, base, i, ox, y1);
-			specs += i;
-			numspecs -= i;
-			i = 0;
+	numspecs_cached = xmakeglyphfontspecs(xw.specbuf, &line[x1], x2 - x1, x1, y1);
+
+	/* Draw line in 2 passes: background and foreground. This way wide glyphs
+       won't get truncated (#223) */
+	for (int dmode = DRAW_BG; dmode <= DRAW_FG; dmode <<= 1) {
+		specs = xw.specbuf;
+		numspecs = numspecs_cached;
+		i = ox = 0;
+		for (x = x1; x < x2 && i < numspecs; x++) {
+			new = line[x];
+			if (new.mode == ATTR_WDUMMY)
+				continue;
+			if (selected(x, y1))
+				new.mode ^= ATTR_REVERSE;
+			if (i > 0 && ATTRCMP(base, new)) {
+				xdrawglyphfontspecs(specs, base, i, ox, y1, dmode);
+				specs += i;
+				numspecs -= i;
+				i = 0;
+			}
+			if (i == 0) {
+				ox = x;
+				base = new;
+			}
+			i++;
 		}
-		if (i == 0) {
-			ox = x;
-			base = new;
-		}
-		i++;
+		if (i > 0)
+			xdrawglyphfontspecs(specs, base, i, ox, y1, dmode);
 	}
-	if (i > 0)
-		xdrawglyphfontspecs(specs, base, i, ox, y1);
 }
 
 void
@@ -1850,6 +2019,13 @@ kpress(XEvent *ev)
 	} else {
 		len = XLookupString(e, buf, sizeof buf, &ksym, NULL);
 	}
+    if ( IS_SET(MODE_KBDSELECT) ) {
+		if ( match(XK_NO_MOD, e->state) ||
+            (XK_Shift_L | XK_Shift_R) & e->state )
+            win.mode ^= trt_kbdselect(ksym, buf, len);
+		return;
+    }
+
 	/* 1. shortcuts */
 	for (bp = shortcuts; bp < shortcuts + LEN(shortcuts); bp++) {
 		if (ksym == bp->keysym && match(bp->mod, e->state)) {
@@ -2014,6 +2190,59 @@ run(void)
 	}
 }
 
+int
+resource_load(XrmDatabase db, char *name, enum resource_type rtype, void *dst)
+{
+	char **sdst = dst;
+	int *idst = dst;
+	float *fdst = dst;
+
+	char fullname[256];
+	char fullclass[256];
+	char *type;
+	XrmValue ret;
+
+	snprintf(fullname, sizeof(fullname), "%s.%s",
+			opt_name ? opt_name : "st", name);
+	snprintf(fullclass, sizeof(fullclass), "%s.%s",
+			opt_class ? opt_class : "St", name);
+	fullname[sizeof(fullname) - 1] = fullclass[sizeof(fullclass) - 1] = '\0';
+
+	XrmGetResource(db, fullname, fullclass, &type, &ret);
+	if (ret.addr == NULL || strncmp("String", type, 64))
+		return 1;
+
+	switch (rtype) {
+	case STRING:
+		*sdst = ret.addr;
+		break;
+	case INTEGER:
+		*idst = strtoul(ret.addr, NULL, 10);
+		break;
+	case FLOAT:
+		*fdst = strtof(ret.addr, NULL);
+		break;
+	}
+	return 0;
+}
+
+void
+config_init(void)
+{
+	char *resm;
+	XrmDatabase db;
+	ResourcePref *p;
+
+	XrmInitialize();
+	resm = XResourceManagerString(xw.dpy);
+	if (!resm)
+		return;
+
+	db = XrmGetStringDatabase(resm);
+	for (p = resources; p < resources + LEN(resources); p++)
+		resource_load(db, p->name, p->type, p->dst);
+}
+
 void
 usage(void)
 {
@@ -2027,6 +2256,14 @@ usage(void)
 	    " [stty_args ...]\n", argv0, argv0);
 }
 
+void toggle_winmode(int flag) {
+        win.mode ^= flag;
+}
+
+void keyboard_select(const Arg *dummy) {
+    win.mode ^= trt_kbdselect(-1, NULL, 0);
+}
+
 int
 main(int argc, char *argv[])
 {
@@ -2038,6 +2275,9 @@ main(int argc, char *argv[])
 	case 'a':
 		allowaltscreen = 0;
 		break;
+	case 'A':
+		opt_alpha = EARGF(usage());
+		break;
 	case 'c':
 		opt_class = EARGF(usage());
 		break;
@@ -2087,6 +2327,11 @@ run:
 
 	setlocale(LC_CTYPE, "");
 	XSetLocaleModifiers("");
+
+	if(!(xw.dpy = XOpenDisplay(NULL)))
+		die("Can't open display\n");
+
+	config_init();
 	cols = MAX(cols, 1);
 	rows = MAX(rows, 1);
 	tnew(cols, rows);