xref: /dragonfly/usr.bin/ctags/lisp.c (revision 67640b13)
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. Neither the name of the University nor the names of its contributors
14  *    may be used to endorse or promote products derived from this software
15  *    without specific prior written permission.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  *
29  * @(#)lisp.c	8.3 (Berkeley) 4/2/94
30  * $FreeBSD: src/usr.bin/ctags/lisp.c,v 1.2.6.2 2002/07/30 00:55:07 tjr Exp $
31  * $DragonFly: src/usr.bin/ctags/lisp.c,v 1.2 2003/06/17 04:29:25 dillon Exp $
32  */
33 
34 #include <ctype.h>
35 #include <limits.h>
36 #include <stdio.h>
37 #include <string.h>
38 
39 #include "ctags.h"
40 
41 /*
42  * lisp tag functions
43  * just look for (def or (DEF
44  */
45 void
46 l_entries(void)
47 {
48 	int	special;
49 	char	*cp;
50 	char	savedc;
51 	char	tok[MAXTOKEN];
52 
53 	for (;;) {
54 		lineftell = ftell(inf);
55 		if (!fgets(lbuf, sizeof(lbuf), inf))
56 			return;
57 		++lineno;
58 		lbp = lbuf;
59 		if (!cicmp("(def"))
60 			continue;
61 		special = NO;
62 		switch(*lbp | ' ') {
63 		case 'm':
64 			if (cicmp("method"))
65 				special = YES;
66 			break;
67 		case 'w':
68 			if (cicmp("wrapper") || cicmp("whopper"))
69 				special = YES;
70 		}
71 		for (; !isspace(*lbp); ++lbp)
72 			continue;
73 		for (; isspace(*lbp); ++lbp)
74 			continue;
75 		for (cp = lbp; *cp && *cp != '\n'; ++cp)
76 			continue;
77 		*cp = EOS;
78 		if (special) {
79 			if (!(cp = strchr(lbp, ')')))
80 				continue;
81 			for (; cp >= lbp && *cp != ':'; --cp)
82 				continue;
83 			if (cp < lbp)
84 				continue;
85 			lbp = cp;
86 			for (; *cp && *cp != ')' && *cp != ' '; ++cp)
87 				continue;
88 		}
89 		else
90 			for (cp = lbp + 1;
91 			    *cp && *cp != '(' && *cp != ' '; ++cp)
92 				continue;
93 		savedc = *cp;
94 		*cp = EOS;
95 		(void)strlcpy(tok, lbp, sizeof(tok));	/* possible trunc */
96 		*cp = savedc;
97 		getline();
98 		pfnote(tok, lineno);
99 	}
100 	/*NOTREACHED*/
101 }
102