added scratchpad patch

PKGBUILD

@@ -23,6 +23,7 @@ _patches=(
         "local-hide_vacant_tags-git-20160626-7af4d43.diff"
         "local-statuscolors-20181008-b69c870.diff"
         "local-fancybar-2019018-b69c870.diff"
+        "local-scratchpad-20170207-bb3bd6f.diff"
         )
 
 source=(http://dl.suckless.org/dwm/dwm-$pkgver.tar.gz
@@ -31,7 +32,7 @@ source=(http://dl.suckless.org/dwm/dwm-$pkgver.tar.gz
 	"${_patches[@]}")
 
 md5sums=('9929845ccdec4d2cc191f16210dd7f3d'
-         'ad8b5866ac139c7ca7ee050b56799c3c'
+         '80b0fe720d05a2c2b0c5ee6c8baaf45d'
          '939f403a71b6e85261d09fc3412269ee'
          '2c19f1a3db59e158c45483668f4cee24'
          'fbb786263f2d714b18368ff64779d669'
@@ -42,7 +43,8 @@ md5sums=('9929845ccdec4d2cc191f16210dd7f3d'
          'aa3d5f3c45057a2a6ee73aede3fc218a'
          'd2781ac29048fc50e42e0f11e6cf7bce'
          'c5469c1457955a8447e05ec5118b3ce6'
-         '77e3bfab2270dde73caf4e1b14566386')
+         '77e3bfab2270dde73caf4e1b14566386'
+         '7381051e12596394791092f0d39a2dd2')
 
 prepare() {
   cd $srcdir/$pkgname-$pkgver

config.h

@@ -106,6 +106,8 @@ static const Layout layouts[] = {
 static char dmenumon[2] = "0"; /* component of dmenucmd, manipulated in spawn() */
 static const char *dmenucmd[] = { "dmenu_run", "-m", dmenumon, "-fn", dmenufont, "-nb", col_gray1, "-nf", col_gray3, "-sb", col_cyan, "-sf", col_gray4, NULL };
 static const char *termcmd[]  = { "st", NULL };
+static const char scratchpadname[] = "scratchpad";
+static const char *scratchpadcmd[] = { "st", "-t", scratchpadname, "-g", "120x34", NULL };
 
 #include "selfrestart.c"
 
@@ -113,6 +115,7 @@ static Key keys[] = {
 	/* modifier                     key        function        argument */
 	{ MODKEY,                       XK_p,      spawn,          {.v = dmenucmd } },
 	{ MODKEY|ShiftMask,             XK_Return, spawn,          {.v = termcmd } },
+	{ MODKEY,                       XK_grave,  togglescratch,  {.v = scratchpadcmd } },
 	{ MODKEY,                       XK_b,      togglebar,      {0} },
 	{ MODKEY,                       XK_j,      focusstack,     {.i = +1 } },
 	{ MODKEY,                       XK_k,      focusstack,     {.i = -1 } },

local-scratchpad-20170207-bb3bd6f.diff

@@ -0,0 +1,83 @@
+diff -up a/config.def.h b/config.def.h
+--- a/config.def.h
++++ b/config.def.h
+@@ -72,6 +72,8 @@ static const Layout layouts[] = {
+ static char dmenumon[2] = "0"; /* component of dmenucmd, manipulated in spawn() */
+ static const char *dmenucmd[] = { "dmenu_run", "-m", dmenumon, "-fn", dmenufont, "-nb", col_gray1, "-nf", col_gray3, "-sb", col_cyan, "-sf", col_gray4, NULL };
+ static const char *termcmd[]  = { "st", NULL };
++static const char scratchpadname[] = "scratchpad";
++static const char *scratchpadcmd[] = { "st", "-t", scratchpadname, "-g", "120x34", NULL };
+ 
+ #include "selfrestart.c"
+ 
+@@ -79,6 +81,7 @@ static Key keys[] = {
+ 	/* modifier                     key        function        argument */
+ 	{ MODKEY,                       XK_p,      spawn,          {.v = dmenucmd } },
+ 	{ MODKEY|ShiftMask,             XK_Return, spawn,          {.v = termcmd } },
++	{ MODKEY,                       XK_grave,  togglescratch,  {.v = scratchpadcmd } },
+ 	{ MODKEY,                       XK_b,      togglebar,      {0} },
+ 	{ MODKEY,                       XK_j,      focusstack,     {.i = +1 } },
+ 	{ MODKEY,                       XK_k,      focusstack,     {.i = -1 } },
+diff -up a/dwm.c b/dwm.c
+--- a/dwm.c
++++ b/dwm.c
+@@ -246,6 +246,7 @@ static void tagmon(const Arg *arg);
+ static void tile(Monitor *);
+ static void togglebar(const Arg *arg);
+ static void togglefloating(const Arg *arg);
++static void togglescratch(const Arg *arg);
+ static void toggletag(const Arg *arg);
+ static void toggleview(const Arg *arg);
+ static void unfocus(Client *c, int setfocus);
+@@ -312,6 +313,8 @@ static Window root, wmcheckwin;
+ /* configuration, allows nested code to access above variables */
+ #include "config.h"
+ 
++static unsigned int scratchtag = 1 << LENGTH(tags);
++
+ /* compile-time check if all tags fit into an unsigned int bit array. */
+ struct NumTags { char limitexceeded[LENGTH(tags) > 31 ? -1 : 1]; };
+ 
+@@ -1238,6 +1241,13 @@ manage(Window w, XWindowAttributes *wa)
+ 		&& (c->x + (c->w / 2) < c->mon->wx + c->mon->ww)) ? bh : c->mon->my);
+ 	c->bw = borderpx;
+ 
++	if (!strcmp(c->name, scratchpadname)) {
++		c->mon->tagset[c->mon->seltags] |= c->tags = scratchtag;
++		c->isfloating = True;
++		c->x = c->mon->wx + (c->mon->ww / 2 - WIDTH(c) / 2);
++		c->y = c->mon->wy + (c->mon->wh / 2 - HEIGHT(c) / 2);
++	}
++
+ 	wc.border_width = c->bw;
+ 	XConfigureWindow(dpy, w, CWBorderWidth, &wc);
+ 	XSetWindowBorder(dpy, w, scheme[SchemeNorm][ColBorder].pixel);
+@@ -2013,6 +2023,28 @@ togglefloating(const Arg *arg)
+ }
+ 
+ void
++togglescratch(const Arg *arg)
++{
++	Client *c;
++	unsigned int found = 0;
++
++	for (c = selmon->clients; c && !(found = c->tags & scratchtag); c = c->next);
++	if (found) {
++		unsigned int newtagset = selmon->tagset[selmon->seltags] ^ scratchtag;
++		if (newtagset) {
++			selmon->tagset[selmon->seltags] = newtagset;
++			focus(NULL);
++			arrange(selmon);
++		}
++		if (ISVISIBLE(c)) {
++			focus(c);
++			restack(selmon);
++		}
++	} else
++		spawn(arg);
++}
++
++void
+ toggletag(const Arg *arg)
+ {
+ 	unsigned int newtags;