usr.bin/ctags/lisp.c

   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 }