xref: /netbsd/usr.bin/ctags/lisp.c (revision bf9ec67e)
1 /*	$NetBSD: lisp.c,v 1.6 2002/01/31 19:26:35 tv Exp $	*/
2 
3 /*
4  * Copyright (c) 1987, 1993, 1994
5  *	The Regents of the University of California.  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 the University of
18  *	California, Berkeley and its contributors.
19  * 4. Neither the name of the University nor the names of its contributors
20  *    may be used to endorse or promote products derived from this software
21  *    without specific prior written permission.
22  *
23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33  * SUCH DAMAGE.
34  */
35 
36 #include <sys/cdefs.h>
37 #if defined(__RCSID) && !defined(lint)
38 #if 0
39 static char sccsid[] = "@(#)lisp.c	8.3 (Berkeley) 4/2/94";
40 #else
41 __RCSID("$NetBSD: lisp.c,v 1.6 2002/01/31 19:26:35 tv Exp $");
42 #endif
43 #endif /* not lint */
44 
45 #include <ctype.h>
46 #include <limits.h>
47 #include <stdio.h>
48 #include <string.h>
49 
50 #include "ctags.h"
51 
52 /*
53  * lisp tag functions
54  * just look for (def or (DEF
55  */
56 void
57 l_entries()
58 {
59 	int	special;
60 	char	*cp;
61 	char	savedc;
62 	char	tok[MAXTOKEN];
63 
64 	for (;;) {
65 		lineftell = ftell(inf);
66 		if (!fgets(lbuf, sizeof(lbuf), inf))
67 			return;
68 		++lineno;
69 		lbp = lbuf;
70 		if (!cicmp("(def"))
71 			continue;
72 		special = NO;
73 		switch(*lbp | ' ') {
74 		case 'm':
75 			if (cicmp("method"))
76 				special = YES;
77 			break;
78 		case 'w':
79 			if (cicmp("wrapper") || cicmp("whopper"))
80 				special = YES;
81 		}
82 		for (; !isspace((unsigned char)*lbp); ++lbp)
83 			continue;
84 		for (; isspace((unsigned char)*lbp); ++lbp)
85 			continue;
86 		for (cp = lbp; *cp && *cp != '\n'; ++cp)
87 			continue;
88 		*cp = EOS;
89 		if (special) {
90 			if (!(cp = strchr(lbp, ')')))
91 				continue;
92 			for (; cp >= lbp && *cp != ':'; --cp)
93 				continue;
94 			if (cp < lbp)
95 				continue;
96 			lbp = cp;
97 			for (; *cp && *cp != ')' && *cp != ' '; ++cp)
98 				continue;
99 		}
100 		else
101 			for (cp = lbp + 1;
102 			    *cp && *cp != '(' && *cp != ' '; ++cp)
103 				continue;
104 		savedc = *cp;
105 		*cp = EOS;
106 		(void)strcpy(tok, lbp);
107 		*cp = savedc;
108 		getline();
109 		pfnote(tok, lineno);
110 	}
111 	/*NOTREACHED*/
112 }
113