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. 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 }