print.c revision 100822 
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#if 0
35#ifndef lint
36static char sccsid[] = "@(#)print.c	8.3 (Berkeley) 4/2/94";
37#endif
38#endif
39
40#include <sys/cdefs.h>
41__FBSDID("$FreeBSD: head/usr.bin/ctags/print.c 100822 2002-07-28 15:50:38Z dwmalone $");
42
43#include <limits.h>
44#include <stdio.h>
45#include <unistd.h>
46
47#include "ctags.h"
48
49/*
50 * getline --
51 *	get the line the token of interest occurred on,
52 *	prepare it for printing.
53 */
54void
55getline(void)
56{
57	long	saveftell;
58	int	c;
59	int	cnt;
60	char	*cp;
61
62	saveftell = ftell(inf);
63	(void)fseek(inf, lineftell, L_SET);
64	if (xflag)
65		for (cp = lbuf; GETC(!=, EOF) && c != '\n'; *cp++ = c)
66			continue;
67	/*
68	 * do all processing here, so we don't step through the
69	 * line more than once; means you don't call this routine
70	 * unless you're sure you've got a keeper.
71	 */
72	else for (cnt = 0, cp = lbuf; GETC(!=, EOF) && cnt < ENDLINE; ++cnt) {
73		if (c == '\\') {		/* backslashes */
74			if (cnt > ENDLINE - 2)
75				break;
76			*cp++ = '\\'; *cp++ = '\\';
77			++cnt;
78		}
79		else if (c == (int)searchar) {	/* search character */
80			if (cnt > ENDLINE - 2)
81				break;
82			*cp++ = '\\'; *cp++ = c;
83			++cnt;
84		}
85		else if (c == '\n') {	/* end of keep */
86			*cp++ = '$';		/* can find whole line */
87			break;
88		}
89		else
90			*cp++ = c;
91	}
92	*cp = EOS;
93	(void)fseek(inf, saveftell, L_SET);
94}
95
96/*
97 * put_entries --
98 *	write out the tags
99 */
100void
101put_entries(NODE *node)
102{
103
104	if (node->left)
105		put_entries(node->left);
106	if (vflag)
107		printf("%s %s %d\n",
108		    node->entry, node->file, (node->lno + 63) / 64);
109	else if (xflag)
110		printf("%-16s %4d %-16s %s\n",
111		    node->entry, node->lno, node->file, node->pat);
112	else
113		fprintf(outf, "%s\t%s\t%c^%s%c\n",
114		    node->entry, node->file, searchar, node->pat, searchar);
115	if (node->right)
116		put_entries(node->right);
117}
118