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