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what.c revision 1.1 
      1 /*
      2  * Copyright (c) 1980, 1988 Regents of the University of California.
      3  * All rights reserved.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions
      7  * are met:
      8  * 1. Redistributions of source code must retain the above copyright
      9  *    notice, this list of conditions and the following disclaimer.
     10  * 2. Redistributions in binary form must reproduce the above copyright
     11  *    notice, this list of conditions and the following disclaimer in the
     12  *    documentation and/or other materials provided with the distribution.
     13  * 3. All advertising materials mentioning features or use of this software
     14  *    must display the following acknowledgement:
     15  *	This product includes software developed by the University of
     16  *	California, Berkeley and its contributors.
     17  * 4. Neither the name of the University nor the names of its contributors
     18  *    may be used to endorse or promote products derived from this software
     19  *    without specific prior written permission.
     20  *
     21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     31  * SUCH DAMAGE.
     32  */
     33 
     34 #ifndef lint
     35 char copyright[] =
     36 "@(#) Copyright (c) 1980, 1988 Regents of the University of California.\n\
     37  All rights reserved.\n";
     38 #endif /* not lint */
     39 
     40 #ifndef lint
     41 static char sccsid[] = "@(#)what.c	5.5 (Berkeley) 3/2/91";
     42 #endif /* not lint */
     43 
     44 #include <stdio.h>
     45 
     46 /*
     47  * what
     48  */
     49 /* ARGSUSED */
     50 main(argc, argv)
     51 	int argc;
     52 	char **argv;
     53 {
     54 	if (!*++argv)
     55 		search();
     56 	else do {
     57 		if (!freopen(*argv, "r", stdin)) {
     58 			perror(*argv);
     59 			exit(1);
     60 		}
     61 		printf("%s\n", *argv);
     62 		search();
     63 	} while(*++argv);
     64 	exit(0);
     65 }
     66 
     67 search()
     68 {
     69 	register int c;
     70 
     71 	while ((c = getchar()) != EOF) {
     72 loop:		if (c != '@')
     73 			continue;
     74 		if ((c = getchar()) != '(')
     75 			goto loop;
     76 		if ((c = getchar()) != '#')
     77 			goto loop;
     78 		if ((c = getchar()) != ')')
     79 			goto loop;
     80 		putchar('\t');
     81 		while ((c = getchar()) != EOF && c && c != '"' &&
     82 		    c != '>' && c != '\n')
     83 			putchar(c);
     84 		putchar('\n');
     85 	}
     86 }
     87