fix(resize): patch to prevent truncate terminal content after resize term window

.gitignore

@@ -0,0 +1,3 @@
+*.o
+
+*.diff

config.def.h

@@ -5,8 +5,12 @@
  *
  * font: see http://freedesktop.org/software/fontconfig/fontconfig-user.html
  */
-static char *font = "FiraCode Nerd Font Propo:pixelsize=13";
-static int borderpx = 5;
+static char *font =
+    "JetBrainsMono NFP:pixelsize=15:antialias=true:autohint=true";
+static char *font2[] = {
+    "Noto Color Emoji:pixelsize=15:antialias=true:autohint=true",
+};
+static int borderpx = 2;
 
 /*
  * What program is execed by st depends of these precedence rules:
@@ -16,7 +20,7 @@ static int borderpx = 5;
  * 4: value of shell in /etc/passwd
  * 5: value of shell in config.h
  */
-static char *shell = "/bin/sh";
+static char *shell = "/bin/bash";
 char *utmp = NULL;
 /* scroll program: to enable use a string like "scroll" */
 char *scroll = NULL;
@@ -96,37 +100,31 @@ unsigned int tabspaces = 8;
 /* Terminal colors (16 first used in escape sequence) */
 static const char *colorname[] = {
     /* 8 normal colors */
-  "#323437",
-  "#ff5454",
-  "#8cc85f",
-  "#e3c78a",
-  "#80a0ff",
-  "#d183e8",
-  "#79dac8",
-  "#a1aab8",
-  "#7c8f8f",
-  "#ff5189",
-  "#36c692",
-  "#bfbf97",
-  "#74b2ff",
-  "#ae81ff",
-  "#85dc85",
-  "#e2637f",
+    [0] = "#282828",  /* hard contrast: #1d2021 / soft contrast: #32302f */
+    [1] = "#cc241d",  /* red     */
+    [2] = "#98971a",  /* green   */
+    [3] = "#d79921",  /* yellow  */
+    [4] = "#458588",  /* blue    */
+    [5] = "#b16286",  /* magenta */
+    [6] = "#689d6a",  /* cyan    */
+    [7] = "#a89984",  /* white   */
+    [8] = "#928374",  /* black   */
+    [9] = "#fb4934",  /* red     */
+    [10] = "#b8bb26", /* green   */
+    [11] = "#fabd2f", /* yellow  */
+    [12] = "#83a598", /* blue    */
+    [13] = "#d3869b", /* magenta */
+    [14] = "#8ec07c", /* cyan    */
+    [15] = "#ebdbb2", /* white   */
     [255] = 0,
-
-	/* more colors can be added after 255 to use with DefaultXX */
-	"#272727",
-  "#f8f8f2",
-  "#080808",
-  "#eeeeee", 
 };
 /*
  * Default colors (colorname index)
  * foreground, background, cursor, reverse cursor
  */
-unsigned int defaultfg = 259;
-unsigned int defaultbg = 256;
-unsigned int defaultcs = 257;
+unsigned int defaultfg = 15;
+unsigned int defaultbg = 0;
+unsigned int defaultcs = 15;
 static unsigned int defaultrcs = 257;
 
 /* https://invisible-island.net/xterm/ctlseqs/ctlseqs.html#h4-Functions-using-CSI-_-ordered-by-the-final-character-lparen-s-rparen:CSI-Ps-SP-q.1D81
@@ -175,9 +173,10 @@ static uint forcemousemod = ShiftMask;
  * Beware that overloading Button1 will disable the selection.
  */
 static MouseShortcut mshortcuts[] = {
-	/* mask                 button   function        argument      release alt */
-  { XK_ANY_MOD,           Button4, kscrollup,      {.i = 1},		0, -1 },
- 	{ XK_ANY_MOD,           Button5, kscrolldown,    {.i = 1},		0, -1 },
+    /* mask                 button   function        argument       release */
+    {XK_ANY_MOD, Button2, selpaste, {.i = 0}, 1},
+    {ShiftMask, Button4, kscrollup, {.i = 1}},
+    {ShiftMask, Button5, kscrolldown, {.i = 1}},
 };
 
 /* Internal keyboard shortcuts. */
@@ -198,11 +197,8 @@ 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} },
 };
 
-
 /*
  * Special keys (change & recompile st.info accordingly)
  *
@@ -468,7 +464,6 @@ static uint selmasks[] = {
  * Printable characters in ASCII, used to estimate the advance width
  * of single wide characters.
  */
-static char ascii_printable[] =
-	" !\"#$%&'()*+,-./0123456789:;<=>?"
+static char ascii_printable[] = " !\"#$%&'()*+,-./0123456789:;<=>?"
                                 "@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_"
                                 "`abcdefghijklmnopqrstuvwxyz{|}~";

config.h

@@ -5,8 +5,12 @@
  *
  * font: see http://freedesktop.org/software/fontconfig/fontconfig-user.html
  */
-static char *font = "FiraCode Nerd Font Propo:pixelsize=13";
-static int borderpx = 5;
+static char *font =
+    "JetBrainsMono NFP:pixelsize=15:antialias=true:autohint=true";
+static char *font2[] = {
+    "Noto Color Emoji:pixelsize=15:antialias=true:autohint=true",
+};
+static int borderpx = 2;
 
 /*
  * What program is execed by st depends of these precedence rules:
@@ -16,7 +20,7 @@ static int borderpx = 5;
  * 4: value of shell in /etc/passwd
  * 5: value of shell in config.h
  */
-static char *shell = "/bin/sh";
+static char *shell = "/bin/bash";
 char *utmp = NULL;
 /* scroll program: to enable use a string like "scroll" */
 char *scroll = NULL;
@@ -96,37 +100,31 @@ unsigned int tabspaces = 8;
 /* Terminal colors (16 first used in escape sequence) */
 static const char *colorname[] = {
     /* 8 normal colors */
-  "#323437",
-  "#ff5454",
-  "#8cc85f",
-  "#e3c78a",
-  "#80a0ff",
-  "#d183e8",
-  "#79dac8",
-  "#a1aab8",
-  "#7c8f8f",
-  "#ff5189",
-  "#36c692",
-  "#bfbf97",
-  "#74b2ff",
-  "#ae81ff",
-  "#85dc85",
-  "#e2637f",
+    [0] = "#282828",  /* hard contrast: #1d2021 / soft contrast: #32302f */
+    [1] = "#cc241d",  /* red     */
+    [2] = "#98971a",  /* green   */
+    [3] = "#d79921",  /* yellow  */
+    [4] = "#458588",  /* blue    */
+    [5] = "#b16286",  /* magenta */
+    [6] = "#689d6a",  /* cyan    */
+    [7] = "#a89984",  /* white   */
+    [8] = "#928374",  /* black   */
+    [9] = "#fb4934",  /* red     */
+    [10] = "#b8bb26", /* green   */
+    [11] = "#fabd2f", /* yellow  */
+    [12] = "#83a598", /* blue    */
+    [13] = "#d3869b", /* magenta */
+    [14] = "#8ec07c", /* cyan    */
+    [15] = "#ebdbb2", /* white   */
     [255] = 0,
-
-	/* more colors can be added after 255 to use with DefaultXX */
-	"#272727",
-  "#f8f8f2",
-  "#080808",
-  "#eeeeee", 
 };
 /*
  * Default colors (colorname index)
  * foreground, background, cursor, reverse cursor
  */
-unsigned int defaultfg = 259;
-unsigned int defaultbg = 256;
-unsigned int defaultcs = 257;
+unsigned int defaultfg = 15;
+unsigned int defaultbg = 0;
+unsigned int defaultcs = 15;
 static unsigned int defaultrcs = 257;
 
 /* https://invisible-island.net/xterm/ctlseqs/ctlseqs.html#h4-Functions-using-CSI-_-ordered-by-the-final-character-lparen-s-rparen:CSI-Ps-SP-q.1D81
@@ -175,9 +173,10 @@ static uint forcemousemod = ShiftMask;
  * Beware that overloading Button1 will disable the selection.
  */
 static MouseShortcut mshortcuts[] = {
-	/* mask                 button   function        argument      release alt */
-  { XK_ANY_MOD,           Button4, kscrollup,      {.i = 1},		0, -1 },
- 	{ XK_ANY_MOD,           Button5, kscrolldown,    {.i = 1},		0, -1 },
+    /* mask                 button   function        argument       release */
+    {XK_ANY_MOD, Button2, selpaste, {.i = 0}, 1},
+    {ShiftMask, Button4, kscrollup, {.i = 1}},
+    {ShiftMask, Button5, kscrolldown, {.i = 1}},
 };
 
 /* Internal keyboard shortcuts. */
@@ -198,11 +197,8 @@ 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} },
 };
 
-
 /*
  * Special keys (change & recompile st.info accordingly)
  *
@@ -468,7 +464,6 @@ static uint selmasks[] = {
  * Printable characters in ASCII, used to estimate the advance width
  * of single wide characters.
  */
-static char ascii_printable[] =
-	" !\"#$%&'()*+,-./0123456789:;<=>?"
+static char ascii_printable[] = " !\"#$%&'()*+,-./0123456789:;<=>?"
                                 "@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_"
                                 "`abcdefghijklmnopqrstuvwxyz{|}~";

st.h.orig

@@ -0,0 +1,129 @@
+/* See LICENSE for license details. */
+
+#include <stdint.h>
+#include <sys/types.h>
+
+/* macros */
+#define MIN(a, b)		((a) < (b) ? (a) : (b))
+#define MAX(a, b)		((a) < (b) ? (b) : (a))
+#define LEN(a)			(sizeof(a) / sizeof(a)[0])
+#define BETWEEN(x, a, b)	((a) <= (x) && (x) <= (b))
+#define DIVCEIL(n, d)		(((n) + ((d) - 1)) / (d))
+#define DEFAULT(a, b)		(a) = (a) ? (a) : (b)
+#define LIMIT(x, a, b)		(x) = (x) < (a) ? (a) : (x) > (b) ? (b) : (x)
+#define ATTRCMP(a, b)		(((a).mode & (~ATTR_WRAP)) != ((b).mode & (~ATTR_WRAP)) || \
+				(a).fg != (b).fg || \
+				(a).bg != (b).bg)
+#define TIMEDIFF(t1, t2)	((t1.tv_sec-t2.tv_sec)*1000 + \
+				(t1.tv_nsec-t2.tv_nsec)/1E6)
+#define MODBIT(x, set, bit)	((set) ? ((x) |= (bit)) : ((x) &= ~(bit)))
+
+#define TRUECOLOR(r,g,b)	(1 << 24 | (r) << 16 | (g) << 8 | (b))
+#define IS_TRUECOL(x)		(1 << 24 & (x))
+
+enum glyph_attribute {
+	ATTR_NULL       = 0,
+	ATTR_BOLD       = 1 << 0,
+	ATTR_FAINT      = 1 << 1,
+	ATTR_ITALIC     = 1 << 2,
+	ATTR_UNDERLINE  = 1 << 3,
+	ATTR_BLINK      = 1 << 4,
+	ATTR_REVERSE    = 1 << 5,
+	ATTR_INVISIBLE  = 1 << 6,
+	ATTR_STRUCK     = 1 << 7,
+	ATTR_WRAP       = 1 << 8,
+	ATTR_WIDE       = 1 << 9,
+	ATTR_WDUMMY     = 1 << 10,
+	ATTR_BOLD_FAINT = ATTR_BOLD | ATTR_FAINT,
+};
+
+enum selection_mode {
+	SEL_IDLE = 0,
+	SEL_EMPTY = 1,
+	SEL_READY = 2
+};
+
+enum selection_type {
+	SEL_REGULAR = 1,
+	SEL_RECTANGULAR = 2
+};
+
+enum selection_snap {
+	SNAP_WORD = 1,
+	SNAP_LINE = 2
+};
+
+typedef unsigned char uchar;
+typedef unsigned int uint;
+typedef unsigned long ulong;
+typedef unsigned short ushort;
+
+typedef uint_least32_t Rune;
+
+#define Glyph Glyph_
+typedef struct {
+	Rune u;           /* character code */
+	ushort mode;      /* attribute flags */
+	uint32_t fg;      /* foreground  */
+	uint32_t bg;      /* background  */
+} Glyph;
+
+typedef Glyph *Line;
+
+typedef union {
+	int i;
+	uint ui;
+	float f;
+	const void *v;
+	const char *s;
+} Arg;
+
+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 *);
+void toggleprinter(const Arg *);
+
+int tattrset(int);
+void tnew(int, int);
+void tresize(int, int);
+void tsetdirtattr(int);
+void ttyhangup(void);
+int ttynew(const char *, char *, const char *, char **);
+size_t ttyread(void);
+void ttyresize(int, int);
+void ttywrite(const char *, size_t, int);
+
+void resettitle(void);
+
+void selclear(void);
+void selinit(void);
+void selstart(int, int, int);
+void selextend(int, int, int, int);
+int selected(int, int);
+char *getsel(void);
+
+size_t utf8encode(Rune, char *);
+
+void *xmalloc(size_t);
+void *xrealloc(void *, size_t);
+char *xstrdup(const char *);
+
+/* config.h globals */
+extern char *utmp;
+extern char *scroll;
+extern char *stty_args;
+extern char *vtiden;
+extern wchar_t *worddelimiters;
+extern int allowaltscreen;
+extern int allowwindowops;
+extern char *termname;
+extern unsigned int tabspaces;
+extern unsigned int defaultfg;
+extern unsigned int defaultbg;
+extern unsigned int defaultcs;

x.c

@@ -4,6 +4,7 @@
 #include <limits.h>
 #include <locale.h>
 #include <signal.h>
+#include <stdlib.h>
 #include <sys/select.h>
 #include <time.h>
 #include <unistd.h>
@@ -159,6 +160,8 @@ 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);
@@ -309,6 +312,7 @@ zoomabs(const Arg *arg)
 {
 	xunloadfonts();
 	xloadfonts(usedfont, arg->f);
+	xloadsparefonts();
 	cresize(0, 0);
 	redraw();
 	xhints();
@@ -1053,6 +1057,101 @@ 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)
 {
@@ -1151,7 +1250,11 @@ xinit(int cols, int rows)
 		die("could not init fontconfig.\n");
 
 	usedfont = (opt_font == NULL)? font : opt_font;
-	xloadfonts(usedfont, 0);
+	
+	xloadfonts(usedfont, defaultfontsize);
+
+	/* spare fonts */
+	xloadsparefonts();
 
 	/* colors */
 	xw.cmap = XDefaultColormap(xw.dpy, xw.scr);
@@ -1649,7 +1752,7 @@ xdrawcursor(int cx, int cy, Glyph g, int ox, int oy, Glyph og, Line line, int le
 				break;
 			/* FALLTHROUGH */
 		case 8: /* steady st cursor */
-			g.u = xsetcursor;
+			g.u = (unsigned int) xsetcursor;
 			xdrawglyph(g, cx, cy);
 			break;
 		}
@@ -2158,6 +2261,11 @@ main(int argc, char *argv[])
 	case 'v':
 		die("%s " VERSION "\n", argv0);
 		break;
+	case 'z':
+		defaultfontsize = strtod(EARGF(usage()), NULL);
+		if (!(defaultfontsize > 0))
+			usage();
+		break;
 	default:
 		usage();
 	} ARGEND;