1 #include <u.h>
2 #include <libc.h>
3 #include <draw.h>
4 #include <memdraw.h>
5 #include <memlayer.h>
6 #include <mouse.h>
7 #include <cursor.h>
8 #include <keyboard.h>
9 #include <drawfcall.h>
10 #include "devdraw.h"
11 
12 int
13 parsewinsize(char *s, Rectangle *r, int *havemin)
14 {
15 	char c, *os;
16 	int i, j, k, l;
17 
18 	os = s;
19 	*havemin = 0;
20 	*r = Rect(0,0,0,0);
21 	if(!isdigit((uchar)*s))
22 		goto oops;
23 	i = strtol(s, &s, 0);
24 	if(*s == 'x'){
25 		s++;
26 		if(!isdigit((uchar)*s))
27 			goto oops;
28 		j = strtol(s, &s, 0);
29 		r->max.x = i;
30 		r->max.y = j;
31 		if(*s == 0)
32 			return 0;
33 		if(*s != '@')
34 			goto oops;
35 
36 		s++;
37 		if(!isdigit((uchar)*s))
38 			goto oops;
39 		i = strtol(s, &s, 0);
40 		if(*s != ',' && *s != ' ')
41 			goto oops;
42 		s++;
43 		if(!isdigit((uchar)*s))
44 			goto oops;
45 		j = strtol(s, &s, 0);
46 		if(*s != 0)
47 			goto oops;
48 		*r = rectaddpt(*r, Pt(i,j));
49 		*havemin = 1;
50 		return 0;
51 	}
52 
53 	c = *s;
54 	if(c != ' ' && c != ',')
55 		goto oops;
56 	s++;
57 	if(!isdigit((uchar)*s))
58 		goto oops;
59 	j = strtol(s, &s, 0);
60 	if(*s != c)
61 		goto oops;
62 	s++;
63 	if(!isdigit((uchar)*s))
64 		goto oops;
65 	k = strtol(s, &s, 0);
66 	if(*s != c)
67 		goto oops;
68 	s++;
69 	if(!isdigit((uchar)*s))
70 		goto oops;
71 	l = strtol(s, &s, 0);
72 	if(*s != 0)
73 		goto oops;
74 	*r = Rect(i,j,k,l);
75 	*havemin = 1;
76 	return 0;
77 
78 oops:
79 	werrstr("bad syntax in window size '%s'", os);
80 	return -1;
81 }