print.c revision 81782 
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
34#ifndef lint
35#if 0
36static const char sccsid[] = "@(#)print.c	8.3 (Berkeley) 4/2/94";
37#endif
38static const char rcsid[] =
39  "$FreeBSD: head/usr.bin/ctags/print.c 81782 2001-08-16 16:16:07Z mikeh $";
40#endif /* not lint */
41
42#include <limits.h>
43#include <stdio.h>
44#include <stdlib.h>
45#include <string.h>
46#include <unistd.h>
47
48#include "ctags.h"
49
50/*
51 * getline --
52 *	get the line the token of interest occurred on,
53 *	prepare it for printing.
54 */
55void
56getline()
57{
58	long	saveftell;
59	int	c;
60	int	cnt;
61	char	*cp;
62
63	saveftell = ftell(inf);
64	(void)fseek(inf, lineftell, L_SET);
65	if (xflag)
66		for (cp = lbuf; GETC(!=, EOF) && c != '\n'; *cp++ = c)
67			continue;
68	/*
69	 * do all processing here, so we don't step through the
70	 * line more than once; means you don't call this routine
71	 * unless you're sure you've got a keeper.
72	 */
73	else for (cnt = 0, cp = lbuf; GETC(!=, EOF) && cnt < ENDLINE; ++cnt) {
74		if (c == '\\') {		/* backslashes */
75			if (cnt > ENDLINE - 2)
76				break;
77			*cp++ = '\\'; *cp++ = '\\';
78			++cnt;
79		}
80		else if (c == (int)searchar) {	/* search character */
81			if (cnt > ENDLINE - 2)
82				break;
83			*cp++ = '\\'; *cp++ = c;
84			++cnt;
85		}
86		else if (c == '\n') {	/* end of keep */
87			*cp++ = '$';		/* can find whole line */
88			break;
89		}
90		else
91			*cp++ = c;
92	}
93	*cp = EOS;
94	(void)fseek(inf, saveftell, L_SET);
95}
96
97/*
98 * put_entries --
99 *	write out the tags
100 */
101void
102put_entries(node)
103	NODE	*node;
104{
105
106	if (node->left)
107		put_entries(node->left);
108	if (vflag)
109		printf("%s %s %d\n",
110		    node->entry, node->file, (node->lno + 63) / 64);
111	else if (xflag)
112		printf("%-16s%4d %-16s %s\n",
113		    node->entry, node->lno, node->file, node->pat);
114	else
115		fprintf(outf, "%s\t%s\t%c^%s%c\n",
116		    node->entry, node->file, searchar, node->pat, searchar);
117	if (node->right)
118		put_entries(node->right);
119}
120