usr.bin/ctags/lisp.c

   1 /*      $NetBSD: lisp.c,v 1.11 2009/07/13 19:05:40 roy 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. Neither the name of the University nor the names of its contributors
  16  *    may be used to endorse or promote products derived from this software
  17  *    without specific prior written permission.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  29  * SUCH DAMAGE.
  30  */
  31
  32 #if HAVE_NBTOOL_CONFIG_H
  33 #include "nbtool_config.h"
  34 #endif
  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 1.11 2009/07/13 19:05:40 roy 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(void)
  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)strlcpy(tok, lbp, sizeof(tok));
 107                 *cp = savedc;
 108                 get_line();
 109                 pfnote(tok, lineno);
 110         }
 111         /*NOTREACHED*/
 112 }