#include <u.h>#include <libc.h>#include <draw.h>#include <memdraw.h>#include "devdraw.h" intparsewinsize(char *s, Rectangle *r, int *havemin){	char c, *os;	int i, j, k, l; 	os = s;	*havemin = 0;	*r = Rect(0,0,0,0);	if(!isdigit((uchar)*s))		goto oops;	i = strtol(s, &s, 0);	if(*s == 'x'){		s++;		if(!isdigit((uchar)*s))			goto oops;		j = strtol(s, &s, 0);		r->max.x = i;		r->max.y = j;		if(*s == 0)			return 0;		if(*s != '@')			goto oops; 		s++;		if(!isdigit((uchar)*s))			goto oops;		i = strtol(s, &s, 0);		if(*s != ',' && *s != ' ')			goto oops;		s++;		if(!isdigit((uchar)*s))			goto oops;		j = strtol(s, &s, 0);		if(*s != 0)			goto oops;		*r = rectaddpt(*r, Pt(i,j));		*havemin = 1;		return 0;	} 	c = *s;	if(c != ' ' && c != ',')		goto oops;	s++;	if(!isdigit((uchar)*s))		goto oops;	j = strtol(s, &s, 0);	if(*s != c)		goto oops;	s++;	if(!isdigit((uchar)*s))		goto oops;	k = strtol(s, &s, 0);	if(*s != c)		goto oops;	s++;	if(!isdigit((uchar)*s))		goto oops;	l = strtol(s, &s, 0);	if(*s != 0)		goto oops;	*r = Rect(i,j,k,l);	*havemin = 1;	return 0; oops:	werrstr("bad syntax in window size '%s'", os);	return -1;}