xref: /dragonfly/usr.bin/ctags/lisp.c (revision ffe53622)
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: head/usr.bin/ctags/lisp.c 299355 2016-05-10 11:11:23Z bapt $
31  */
32 
33 #include <ctype.h>
34 #include <limits.h>
35 #include <stdio.h>
36 #include <string.h>
37 
38 #include "ctags.h"
39 
40 /*
41  * lisp tag functions
42  * just look for (def or (DEF
43  */
44 void
45 l_entries(void)
46 {
47 	int	special;
48 	char	*cp;
49 	char	savedc;
50 	char	tok[MAXTOKEN];
51 
52 	for (;;) {
53 		lineftell = ftell(inf);
54 		if (!fgets(lbuf, sizeof(lbuf), inf))
55 			return;
56 		++lineno;
57 		lbp = lbuf;
58 		if (!cicmp("(def"))
59 			continue;
60 		special = NO;
61 		switch(*lbp | ' ') {
62 		case 'm':
63 			if (cicmp("method"))
64 				special = YES;
65 			break;
66 		case 'w':
67 			if (cicmp("wrapper") || cicmp("whopper"))
68 				special = YES;
69 		}
70 		for (; !isspace(*lbp); ++lbp)
71 			continue;
72 		for (; isspace(*lbp); ++lbp)
73 			continue;
74 		for (cp = lbp; *cp && *cp != '\n'; ++cp)
75 			continue;
76 		*cp = EOS;
77 		if (special) {
78 			if (!(cp = strchr(lbp, ')')))
79 				continue;
80 			for (; cp >= lbp && *cp != ':'; --cp)
81 				continue;
82 			if (cp < lbp)
83 				continue;
84 			lbp = cp;
85 			for (; *cp && *cp != ')' && *cp != ' '; ++cp)
86 				continue;
87 		}
88 		else
89 			for (cp = lbp + 1;
90 			    *cp && *cp != '(' && *cp != ' '; ++cp)
91 				continue;
92 		savedc = *cp;
93 		*cp = EOS;
94 		strlcpy(tok, lbp, sizeof(tok));	/* possible trunc */
95 		*cp = savedc;
96 		get_line();
97 		pfnote(tok, lineno);
98 	}
99 	/*NOTREACHED*/
100 }
101