xref: /dragonfly/usr.bin/ctags/lisp.c (revision b40e316c)
1 /*
2  * Copyright (c) 1987, 1993, 1994
3  *	The Regents of the University of California.  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  * @(#)lisp.c	8.3 (Berkeley) 4/2/94
34  * $FreeBSD: src/usr.bin/ctags/lisp.c,v 1.2.6.2 2002/07/30 00:55:07 tjr Exp $
35  * $DragonFly: src/usr.bin/ctags/lisp.c,v 1.2 2003/06/17 04:29:25 dillon Exp $
36  */
37 
38 #include <ctype.h>
39 #include <limits.h>
40 #include <stdio.h>
41 #include <string.h>
42 
43 #include "ctags.h"
44 
45 /*
46  * lisp tag functions
47  * just look for (def or (DEF
48  */
49 void
50 l_entries(void)
51 {
52 	int	special;
53 	char	*cp;
54 	char	savedc;
55 	char	tok[MAXTOKEN];
56 
57 	for (;;) {
58 		lineftell = ftell(inf);
59 		if (!fgets(lbuf, sizeof(lbuf), inf))
60 			return;
61 		++lineno;
62 		lbp = lbuf;
63 		if (!cicmp("(def"))
64 			continue;
65 		special = NO;
66 		switch(*lbp | ' ') {
67 		case 'm':
68 			if (cicmp("method"))
69 				special = YES;
70 			break;
71 		case 'w':
72 			if (cicmp("wrapper") || cicmp("whopper"))
73 				special = YES;
74 		}
75 		for (; !isspace(*lbp); ++lbp)
76 			continue;
77 		for (; isspace(*lbp); ++lbp)
78 			continue;
79 		for (cp = lbp; *cp && *cp != '\n'; ++cp)
80 			continue;
81 		*cp = EOS;
82 		if (special) {
83 			if (!(cp = strchr(lbp, ')')))
84 				continue;
85 			for (; cp >= lbp && *cp != ':'; --cp)
86 				continue;
87 			if (cp < lbp)
88 				continue;
89 			lbp = cp;
90 			for (; *cp && *cp != ')' && *cp != ' '; ++cp)
91 				continue;
92 		}
93 		else
94 			for (cp = lbp + 1;
95 			    *cp && *cp != '(' && *cp != ' '; ++cp)
96 				continue;
97 		savedc = *cp;
98 		*cp = EOS;
99 		(void)strlcpy(tok, lbp, sizeof(tok));	/* possible trunc */
100 		*cp = savedc;
101 		getline();
102 		pfnote(tok, lineno);
103 	}
104 	/*NOTREACHED*/
105 }
106