print.c revision 87628 
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 87628 2001-12-10 21:13:08Z dwmalone $");
42
43#include <limits.h>
44#include <stdio.h>
45#include <stdlib.h>
46#include <string.h>
47#include <unistd.h>
48
49#include "ctags.h"
50
51/*
52 * getline --
53 *	get the line the token of interest occurred on,
54 *	prepare it for printing.
55 */
56void
57getline()
58{
59	long	saveftell;
60	int	c;
61	int	cnt;
62	char	*cp;
63
64	saveftell = ftell(inf);
65	(void)fseek(inf, lineftell, L_SET);
66	if (xflag)
67		for (cp = lbuf; GETC(!=, EOF) && c != '\n'; *cp++ = c)
68			continue;
69	/*
70	 * do all processing here, so we don't step through the
71	 * line more than once; means you don't call this routine
72	 * unless you're sure you've got a keeper.
73	 */
74	else for (cnt = 0, cp = lbuf; GETC(!=, EOF) && cnt < ENDLINE; ++cnt) {
75		if (c == '\\') {		/* backslashes */
76			if (cnt > ENDLINE - 2)
77				break;
78			*cp++ = '\\'; *cp++ = '\\';
79			++cnt;
80		}
81		else if (c == (int)searchar) {	/* search character */
82			if (cnt > ENDLINE - 2)
83				break;
84			*cp++ = '\\'; *cp++ = c;
85			++cnt;
86		}
87		else if (c == '\n') {	/* end of keep */
88			*cp++ = '$';		/* can find whole line */
89			break;
90		}
91		else
92			*cp++ = c;
93	}
94	*cp = EOS;
95	(void)fseek(inf, saveftell, L_SET);
96}
97
98/*
99 * put_entries --
100 *	write out the tags
101 */
102void
103put_entries(node)
104	NODE	*node;
105{
106
107	if (node->left)
108		put_entries(node->left);
109	if (vflag)
110		printf("%s %s %d\n",
111		    node->entry, node->file, (node->lno + 63) / 64);
112	else if (xflag)
113		printf("%-16s %4d %-16s %s\n",
114		    node->entry, node->lno, node->file, node->pat);
115	else
116		fprintf(outf, "%s\t%s\t%c^%s%c\n",
117		    node->entry, node->file, searchar, node->pat, searchar);
118	if (node->right)
119		put_entries(node->right);
120}
121