3e1db26a5a
Removing elvis, importing nvi, ctags, updating libedit. Change-Id: I881eb04d2dc64cf112facd992de1114e1a59107f
276 lines
7 KiB
C
276 lines
7 KiB
C
/* $NetBSD: ctags.c,v 1.12 2008/07/21 14:19:22 lukem Exp $ */
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/*
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* Copyright (c) 1987, 1993, 1994, 1995
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#if HAVE_NBTOOL_CONFIG_H
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#include "nbtool_config.h"
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#endif
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#include <sys/cdefs.h>
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#if defined(__COPYRIGHT) && !defined(lint)
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__COPYRIGHT("@(#) Copyright (c) 1987, 1993, 1994, 1995\
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The Regents of the University of California. All rights reserved.");
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#endif /* not lint */
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#if defined(__RCSID) && !defined(lint)
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#if 0
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static char sccsid[] = "@(#)ctags.c 8.4 (Berkeley) 2/7/95";
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#endif
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__RCSID("$NetBSD: ctags.c,v 1.12 2008/07/21 14:19:22 lukem Exp $");
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#endif /* not lint */
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#include <err.h>
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#include <limits.h>
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include "ctags.h"
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/*
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* ctags: create a tags file
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*/
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NODE *head; /* head of the sorted binary tree */
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/* boolean "func" (see init()) */
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bool _wht[256], _etk[256], _itk[256], _btk[256], _gd[256];
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FILE *inf; /* ioptr for current input file */
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FILE *outf; /* ioptr for tags file */
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long lineftell; /* ftell after getc( inf ) == '\n' */
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int lineno; /* line number of current line */
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int dflag; /* -d: non-macro defines */
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int tflag; /* -t: create tags for typedefs */
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int vflag; /* -v: vgrind style index output */
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int wflag; /* -w: suppress warnings */
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int xflag; /* -x: cxref style output */
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char *curfile; /* current input file name */
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char searchar = '/'; /* use /.../ searches by default */
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char lbuf[LINE_MAX];
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void init(void);
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void find_entries(char *);
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int
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main(int argc, char **argv)
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{
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static const char *outfile = "tags"; /* output file */
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int aflag; /* -a: append to tags */
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int uflag; /* -u: update tags */
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int exit_val; /* exit value */
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int step; /* step through args */
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int ch; /* getopts char */
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char cmd[100]; /* too ugly to explain */
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aflag = uflag = NO;
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while ((ch = getopt(argc, argv, "BFadf:tuwvx")) != -1)
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switch(ch) {
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case 'B':
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searchar = '?';
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break;
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case 'F':
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searchar = '/';
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break;
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case 'a':
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aflag++;
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break;
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case 'd':
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dflag++;
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break;
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case 'f':
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outfile = optarg;
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break;
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case 't':
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tflag++;
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break;
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case 'u':
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uflag++;
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break;
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case 'w':
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wflag++;
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break;
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case 'v':
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vflag++;
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case 'x':
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xflag++;
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break;
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case '?':
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default:
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goto usage;
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}
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argv += optind;
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argc -= optind;
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if (!argc) {
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usage: (void)fprintf(stderr,
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"usage: ctags [-BFadtuwvx] [-f tagsfile] file ...\n");
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exit(1);
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}
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init();
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for (exit_val = step = 0; step < argc; ++step)
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if (!(inf = fopen(argv[step], "r"))) {
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warn("%s", argv[step]);
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exit_val = 1;
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}
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else {
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curfile = argv[step];
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find_entries(argv[step]);
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(void)fclose(inf);
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}
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if (head) {
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if (xflag)
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put_entries(head);
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else {
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if (uflag) {
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for (step = 0; step < argc; step++) {
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(void)snprintf(cmd, sizeof(cmd),
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"mv %s OTAGS; fgrep -v '\t%s\t' OTAGS >%s; rm OTAGS",
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outfile, argv[step],
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outfile);
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system(cmd);
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}
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++aflag;
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}
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if (!(outf = fopen(outfile, aflag ? "a" : "w")))
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err(exit_val, "%s", outfile);
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put_entries(head);
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(void)fclose(outf);
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if (uflag) {
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(void)snprintf(cmd, sizeof(cmd),
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"sort -o %s %s", outfile, outfile);
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system(cmd);
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}
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}
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}
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exit(exit_val);
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}
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/*
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* init --
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* this routine sets up the boolean psuedo-functions which work by
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* setting boolean flags dependent upon the corresponding character.
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* Every char which is NOT in that string is false with respect to
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* the pseudo-function. Therefore, all of the array "_wht" is NO
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* by default and then the elements subscripted by the chars in
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* CWHITE are set to YES. Thus, "_wht" of a char is YES if it is in
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* the string CWHITE, else NO.
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*/
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void
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init(void)
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{
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int i;
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unsigned const char *sp;
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for (i = 0; i < 256; i++) {
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_wht[i] = _etk[i] = _itk[i] = _btk[i] = NO;
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_gd[i] = YES;
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}
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#define CWHITE " \f\t\n"
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for (sp = CWHITE; *sp; sp++) /* white space chars */
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_wht[*sp] = YES;
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#define CTOKEN " \t\n\"'#()[]{}=-+%*/&|^~!<>;,.:?"
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for (sp = CTOKEN; *sp; sp++) /* token ending chars */
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_etk[*sp] = YES;
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#define CINTOK "ABCDEFGHIJKLMNOPQRSTUVWXYZ_abcdefghijklmnopqrstuvwxyz0123456789"
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for (sp = CINTOK; *sp; sp++) /* valid in-token chars */
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_itk[*sp] = YES;
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#define CBEGIN "ABCDEFGHIJKLMNOPQRSTUVWXYZ_abcdefghijklmnopqrstuvwxyz"
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for (sp = CBEGIN; *sp; sp++) /* token starting chars */
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_btk[*sp] = YES;
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#define CNOTGD ",;"
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for (sp = CNOTGD; *sp; sp++) /* invalid after-function chars */
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_gd[*sp] = NO;
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}
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/*
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* find_entries --
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* this routine opens the specified file and calls the function
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* which searches the file.
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*/
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void
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find_entries(char *file)
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{
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char *cp;
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lineno = 0; /* should be 1 ?? KB */
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if ((cp = strrchr(file, '.')) != NULL) {
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if (cp[1] == 'l' && !cp[2]) {
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int c;
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for (;;) {
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if (GETC(==, EOF))
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return;
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if (!iswhite(c)) {
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rewind(inf);
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break;
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}
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}
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#define LISPCHR ";(["
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/* lisp */ if (strchr(LISPCHR, c)) {
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l_entries();
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return;
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}
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/* lex */ else {
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/*
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* we search all 3 parts of a lex file
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* for C references. This may be wrong.
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*/
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toss_yysec();
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(void)strlcpy(lbuf, "%%$", sizeof(lbuf));
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pfnote("yylex", lineno);
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rewind(inf);
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}
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}
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/* yacc */ else if (cp[1] == 'y' && !cp[2]) {
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/*
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* we search only the 3rd part of a yacc file
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* for C references. This may be wrong.
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*/
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toss_yysec();
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(void)strlcpy(lbuf, "%%$", sizeof(lbuf));
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pfnote("yyparse", lineno);
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y_entries();
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}
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/* fortran */ else if ((cp[1] != 'c' && cp[1] != 'h') && !cp[2]) {
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if (PF_funcs())
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return;
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rewind(inf);
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}
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}
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/* C */ c_entries();
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}
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