src/util/setscan.c

#ifndef lint
static const char       RCSid[] = "$Id: setscan.c,v 2.3 2003/06/27 11:32:12 schorsch Exp $";
#endif
/*
 * Convert angle ranges of the form a-b:s,c to discrete values
 */

#include <stdlib.h>
#include <ctype.h>

#include "setscan.h"

int
setscan(                        /* set up scan according to arg */
register ANGLE  *ang,
register char  *arg
)
{
        int  state = ',';
        int  start, finish, step;

        while (state) {
                switch (state) {
                case ',':
                        start = atoi(arg);
                        finish = start;
                        step = 1;
                        break;
                case '-':
                        finish = atoi(arg);
                        if (finish < start)
                                return(-1);
                        break;
                case ':':
                        step = atoi(arg);
                        break;
                default:
                        return(-1);
                }
                if (!isdigit(*arg))
                        return(-1);
                do
                        arg++;
                while (isdigit(*arg));
                state = *arg++;
                if (!state || state == ',')
                        while (start <= finish) {
                                *ang++ = start;
                                start += step;
                        }
        }
        *ang = AEND;
        return(0);
}
Revision:	2.4
Committed:	Fri Mar 26 23:34:23 2004 UTC (21 years, 7 months ago) by schorsch
Content type:	text/plain
Branch:	MAIN
CVS Tags:	rad5R4, rad5R2, rad5R3, rad5R0, rad5R1, rad4R2, rad3R7P2, rad3R7P1, rad6R0, rad4R1, rad4R0, rad3R6, rad3R6P1, rad3R8, rad3R9, rad4R2P1, rad4R2P2, HEAD
Changes since 2.3:	+2 -1 lines
Log Message:	Continued ANSIfication.
#	User	Rev	Content
1	greg	1.3	#ifndef lint
2	schorsch	2.4	static const char RCSid[] = "$Id: setscan.c,v 2.3 2003/06/27 11:32:12 schorsch Exp $";
3	greg	1.3	#endif
4			/*
5			* Convert angle ranges of the form a-b:s,c to discrete values
6			*/
7	greg	1.1
8	schorsch	2.4	#include <stdlib.h>
9	greg	1.1	#include <ctype.h>
10
11	greg	1.3	#include "setscan.h"
12
13	schorsch	2.3	int
14			setscan( /* set up scan according to arg */
15			register ANGLE *ang,
16			register char *arg
17			)
18	greg	1.1	{
19			int state = ',';
20			int start, finish, step;
21
22			while (state) {
23			switch (state) {
24			case ',':
25			start = atoi(arg);
26			finish = start;
27			step = 1;
28			break;
29			case '-':
30			finish = atoi(arg);
31			if (finish < start)
32			return(-1);
33			break;
34			case ':':
35			step = atoi(arg);
36			break;
37			default:
38			return(-1);
39			}
40	greg	1.2	if (!isdigit(*arg))
41	greg	1.1	return(-1);
42			do
43			arg++;
44			while (isdigit(*arg));
45			state = *arg++;
46			if (!state \|\| state == ',')
47			while (start <= finish) {
48			*ang++ = start;
49			start += step;
50			}
51			}
52			*ang = AEND;
53			return(0);
54			}