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#include <u.h>
#include <libc.h>
#include <draw.h>
#include <memdraw.h>
#include "devdraw.h"
int
parsewinsize(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;
}
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