BSD 4_3_Net_2 release
[unix-history] / usr / src / usr.bin / ctags / print.c
CommitLineData
70f42695 1/*
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2 * Copyright (c) 1987 The Regents of the University of California.
3 * All rights reserved.
4 *
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C
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.
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32 */
33
34#ifndef lint
af359dea 35static char sccsid[] = "@(#)print.c 5.4 (Berkeley) 2/26/91";
ffa8a268 36#endif /* not lint */
70f42695 37
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38#include <unistd.h>
39#include <stdio.h>
40#include <stdlib.h>
41#include <string.h>
42#include "ctags.h"
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43
44extern char searchar; /* ex search character */
45
46/*
47 * getline --
48 * get the line the token of interest occurred on,
49 * prepare it for printing.
50 */
51getline()
52{
53 register long saveftell;
54 register int c,
55 cnt;
56 register char *cp;
57
58 saveftell = ftell(inf);
59 (void)fseek(inf,lineftell,L_SET);
60 if (xflag)
61 for (cp = lbuf;GETC(!=,'\n');*cp++ = c);
62 /*
63 * do all processing here, so we don't step through the
64 * line more than once; means you don't call this routine
65 * unless you're sure you've got a keeper.
66 */
67 else for (cnt = 0,cp = lbuf;GETC(!=,EOF) && cnt < ENDLINE;++cnt) {
68 if (c == (int)'\\') { /* backslashes */
69 if (cnt > ENDLINE - 2)
70 break;
71 *cp++ = '\\'; *cp++ = '\\';
72 ++cnt;
73 }
74 else if (c == (int)searchar) { /* search character */
75 if (cnt > ENDLINE - 2)
76 break;
77 *cp++ = '\\'; *cp++ = c;
78 ++cnt;
79 }
80 else if (c == (int)'\n') { /* end of keep */
81 *cp++ = '$'; /* can find whole line */
82 break;
83 }
84 else
85 *cp++ = c;
86 }
87 *cp = EOS;
88 (void)fseek(inf,saveftell,L_SET);
89}
90
91/*
92 * put_entries --
93 * write out the tags
94 */
95put_entries(node)
96 register NODE *node;
97{
98 extern FILE *outf; /* ioptr for tags file */
99 extern int vflag; /* -v: vgrind style output */
100
101 if (node->left)
102 put_entries(node->left);
103 if (vflag)
104 printf("%s %s %d\n",
105 node->entry,node->file,(node->lno + 63) / 64);
106 else if (xflag)
107 printf("%-16s%4d %-16s %s\n",
108 node->entry,node->lno,node->file,node->pat);
109 else
110 fprintf(outf,"%s\t%s\t%c^%s%c\n",
111 node->entry,node->file,searchar,node->pat,searchar);
112 if (node->right)
113 put_entries(node->right);
114}