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/* Copyright (c) 1991 Regents of the University of California */
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/* SCCSid "$SunId$ LBL" */
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/* Copyright (c) 1991 Regents of the University of California */
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#include <ctype.h>
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#define ANGLE short
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#define AEND (-1)
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setscan(ang, arg) /* set up scan according to arg */
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register ANGLE *ang;
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register char *arg;
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{
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int state = ',';
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int start, finish, step;
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while (state) {
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switch (state) {
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case ',':
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start = atoi(arg);
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finish = start;
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step = 1;
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break;
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case '-':
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finish = atoi(arg);
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if (finish < start)
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return(-1);
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break;
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case ':':
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step = atoi(arg);
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break;
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default:
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return(-1);
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}
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if (!isdigit(*arg))
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return(-1);
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do
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arg++;
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while (isdigit(*arg));
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state = *arg++;
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if (!state || state == ',')
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while (start <= finish) {
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*ang++ = start;
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start += step;
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}
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}
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*ang = AEND;
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return(0);
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}
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