made the string-based setgeom working

config.def.h

@@ -9,7 +9,19 @@
 #define SELBORDERCOLOR		"#0066ff"
 #define SELBGCOLOR		"#0066ff"
 #define SELFGCOLOR		"#ffffff"
-#define GEOMETRY		"0 0 W B 0 B W H-B 0 B W*0.55 H-B W*0.45 B H-B 0 B W H-B"
+#define GEOMETRY		"0 0 W B " \
+				"0 B W H-B " \
+				"0 B W*0.55 H-B " \
+				"W*0.55 B W*0.45 H-B " \
+				"0 B W H-B"
+
+/* Anselm's dual head geometry in the office */
+#define DUALGEOMETRY		"0 0 1280 B " \
+				"0 B W H-B " \
+				"0 B 1280 800-B " \
+				"1280 0 W-1280 H " \
+				"0 B 1280 800-B"
+
 
 /* tagging */
 const char tags[][MAXTAGLEN] = { "1", "2", "3", "4", "5", "6", "7", "8", "9" };
@@ -38,7 +50,7 @@ Layout layouts[] = {
 #define MODKEY			Mod1Mask
 Key keys[] = {
 	/* modifier			key		function	argument */
-	{ MODKEY,			XK_a,		setgeom,	"0 0 W B 0 B W H-B 0 B 1280 800-B 1280 0 W-1280 H 0 B 1280 800-B" },
+	{ MODKEY,			XK_a,		setgeom,	DUALGEOMETRY },
 	{ MODKEY,			XK_d,		setgeom,	GEOMETRY },
 	{ MODKEY,			XK_p,		spawn,
 		"exec dmenu_run -fn '"FONT"' -nb '"NORMBGCOLOR"' -nf '"NORMFGCOLOR"' -sb '"SELBGCOLOR"' -sf '"SELFGCOLOR"'" },

config.mk

@@ -17,7 +17,7 @@ LIBS = -L/usr/lib -lc -L${X11LIB} -lX11
 # flags
 CFLAGS = -Os ${INCS} -DVERSION=\"${VERSION}\"
 LDFLAGS = -s ${LIBS}
-#CFLAGS = -g -std=c99 -pedantic -Wall -O2 ${INCS} -DVERSION=\"${VERSION}\" -DWORK
+#CFLAGS = -g -std=c99 -pedantic -Wall -O2 ${INCS} -DVERSION=\"${VERSION}\"
 #LDFLAGS = -g ${LIBS}
 
 # Solaris

dwm.c

@@ -107,6 +107,7 @@ typedef struct {
 } Rule;
 
 /* function declarations */
+void applygeom(const char *arg);
 void applyrules(Client *c);
 void arrange(void);
 void attach(Client *c);
@@ -235,6 +236,55 @@ static Bool tmp[LENGTH(tags)];
 
 /* function implementations */
 
+void
+applygeometry(const char *arg) {
+	static const char *lastArg = NULL;
+	char delim, op, *s, *e, *p;
+	double val;
+	int i, *map[] = { &bx,  &by,  &bw,  &bh,
+	                  &wx,  &wy,  &ww,  &wh,
+	                  &mx,  &my,  &mw,  &mh,
+	                  &tx,  &ty,  &tw,  &th,
+	                  &mox, &moy, &mow, &moh };
+
+	if(!arg)
+		arg = lastArg;
+	else
+		lastArg = arg;
+	if(!lastArg)
+		return;
+	strncpy(buf, arg, sizeof buf);
+	for(i = 0, e = s = buf; i < LENGTH(map) && e; e++)
+		if(*e == ' ' || *e == 0) {
+			delim = *e;
+			*e = 0;
+			op = 0;
+			/* check if there is an operator */
+			for(p = s; p < e && *p != '-' && *p != '+' && *p != '*'; p++);
+			if(*p) {
+				op = *p;
+				*p = 0;
+			}
+			val = getdouble(s);
+			if(op && p > s) { /* intermediate operand, e.g. H-B */
+				*(map[i]) = (int)val;
+				s = ++p;
+				val = getdouble(s);
+			}
+			switch(op) {
+			default:  *(map[i])  = (int)val; break;
+			case '-': *(map[i]) -= (int)val; break;
+			case '+': *(map[i]) += (int)val; break;
+			case '*': *(map[i])  = (int)(((double)*(map[i])) * val); break;
+			}
+			if(delim == 0)
+				e = NULL;
+			else
+				s = ++e;
+			i++;
+		}
+}
+
 void
 applyrules(Client *c) {
 	unsigned int i;
@@ -410,11 +460,8 @@ void
 configurenotify(XEvent *e) {
 	XConfigureEvent *ev = &e->xconfigure;
 
-	if(ev->window == root && (ev->width != sw || ev->height != sh)) {
+	if(ev->window == root && (ev->width != sw || ev->height != sh))
 		setgeom(NULL);
-		updatebarpos();
-		arrange();
-	}
 }
 
 void
@@ -1391,31 +1438,11 @@ setclientstate(Client *c, long state) {
 			PropModeReplace, (unsigned char *)data, 2);
 }
 
-/**
- * Idea:
- *
- * having a geom syntax as follows, which is interpreted as integer.
- *
- * [-,+][<0..n>|<W,H,B>]
- *
- *
- * B = bar height, W = DisplayWidth(), H = DisplayHeight()
- *
- * -/+/* /: is relative to current
- *
- * Then we would come down with <bx>,<by>,<bw>,<bh>,...
- *
- * "0 0 W B 0 0 W W N E B,W,B,
- *
- *
- */
-
 double
 getdouble(const char *s) {
 	char *endp;
 	double result = 0;
 
-	fprintf(stderr, "getdouble '%s'\n", s);
 	switch(*s) {
 	default: 
 		result = strtod(s, &endp);
@@ -1426,58 +1453,12 @@ getdouble(const char *s) {
 	case 'W': result = sw; break;
 	case 'H': result = sh; break;
 	}
-	fprintf(stderr, "getdouble returns '%f'\n", result);
 	return result;
 }
 
 void
 setgeom(const char *arg) {
-	static const char *lastArg = NULL;
-	char op, *s, *e, *p;
-	double val;
-	int i, *map[] = { &bx,  &by,  &bw,  &bh,
-	                  &wx,  &wy,  &ww,  &wh,
-	                  &mx,  &my,  &mw,  &mh,
-	                  &tx,  &ty,  &tw,  &th,
-	                  &mox, &moy, &mow, &moh };
-
-	if(!arg)
-		arg = lastArg;
-	else
-		lastArg = arg;
-	if(!lastArg)
-		return;
-	strncpy(buf, arg, sizeof buf);
-	for(i = 0, e = s = buf; e && *e; e++)
-		if(*e == ' ') {
-			*e = 0;
-			fprintf(stderr, "next geom arg='%s'\n", s);
-			op = 0;
-			/* check if there is an operator */
-			for(p = s; *p && *p != '-' && *p != '+' && *p != '*' && *p != ':'; p++);
-			if(*p) {
-				op = *p;
-				*p = 0;
-			}
-			val = getdouble(s);
-			fprintf(stderr, "val1: %d\n", val);
-			if(p > s) { /* intermediate operand, e.g. H-B */
-				*(map[i]) = val;
-				s = ++p;
-				val = getdouble(s);
-				fprintf(stderr, "val2: %d\n", val);
-			}
-			switch(op) {
-			default: *(map[i])   = val; break;
-			case '-': *(map[i]) -= val; break;
-			case '+': *(map[i]) += val; break;
-			case '*': *(map[i]) *= val; break;
-			case ':': if(val != 0) *(map[i]) /= val; break;
-			}
-			fprintf(stderr, "map[i]='%d'\n", val);
-			s = ++e;
-			i++;
-		}
+	applygeometry(arg);
 	updatebarpos();
 	arrange();
 }
@@ -1521,7 +1502,7 @@ setup(void) {
 	sy = 0;
 	sw = DisplayWidth(dpy, screen);
 	sh = DisplayHeight(dpy, screen);
-	setgeom(GEOMETRY);
+	applygeometry(GEOMETRY);
 
 	/* init atoms */
 	wmatom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False);