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asa.c revision 1.16 
      1 /*	$NetBSD: asa.c,v 1.16 2007/06/24 23:23:10 christos Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1993,94 Winning Strategies, Inc.
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. All advertising materials mentioning features or use of this software
     16  *    must display the following acknowledgement:
     17  *      This product includes software developed by Winning Strategies, Inc.
     18  * 4. The name of the author may not be used to endorse or promote products
     19  *    derived from this software without specific prior written permission
     20  *
     21  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     22  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     23  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     24  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     25  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     26  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     27  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     28  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     29  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     30  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     31  */
     32 
     33 #include <sys/cdefs.h>
     34 #ifndef lint
     35 __RCSID("$NetBSD: asa.c,v 1.16 2007/06/24 23:23:10 christos Exp $");
     36 #endif
     37 
     38 #include <err.h>
     39 #include <stdio.h>
     40 #include <stdlib.h>
     41 
     42 static void asa(FILE *);
     43 int main(int, char *[]);
     44 
     45 int
     46 /*ARGSUSED*/
     47 main (int argc, char *argv[])
     48 {
     49 	FILE *fp;
     50 
     51 	/* skip progname */
     52 	argv++;
     53 
     54 	if (*argv == NULL)
     55 		asa(stdin);
     56 	else
     57         	do {
     58 			if ((fp = fopen(*argv, "r")) == NULL) {
     59 				warn("%s", *argv);
     60 				continue;
     61 			}
     62 			asa(fp);
     63 			(void)fclose(fp);
     64         	} while (*++argv != NULL);
     65 
     66 	return 0;
     67 }
     68 
     69 static void
     70 asa(FILE *f)
     71 {
     72 	char *buf;
     73 	size_t len;
     74 
     75 	if ((buf = fgetln(f, &len)) != NULL) {
     76 		if (len > 0 && buf[len - 1] == '\n')
     77 			buf[--len] = '\0';
     78 		/* special case the first line */
     79 		switch (buf[0]) {
     80 		case '0':
     81 			(void)putchar('\n');
     82 			break;
     83 		case '1':
     84 			(void)putchar('\f');
     85 			break;
     86 		}
     87 
     88 		if (len > 1 && buf[0] && buf[1])
     89 			(void)fwrite(buf + 1, 1, len - 1, stdout);
     90 
     91 		while ((buf = fgetln(f, &len)) != NULL) {
     92 			if (len > 0 && buf[len - 1] == '\n')
     93 				buf[--len] = '\0';
     94 			switch (buf[0]) {
     95 			default:
     96 			case ' ':
     97 				(void)putchar('\n');
     98 				break;
     99 			case '0':
    100 				(void)putchar('\n');
    101 				(void)putchar('\n');
    102 				break;
    103 			case '1':
    104 				(void)putchar('\f');
    105 				break;
    106 			case '+':
    107 				(void)putchar('\r');
    108 				break;
    109 			}
    110 
    111 			if (len > 1 && buf[0] && buf[1])
    112 				(void)fwrite(buf + 1, 1, len - 1, stdout);
    113 		}
    114 
    115 		(void)putchar('\n');
    116 	}
    117 }
    118