1 |
|
|
/* $OpenBSD: tree.c,v 1.13 2015/09/29 03:19:24 guenther Exp $ */ |
2 |
|
|
/* $NetBSD: tree.c,v 1.4 1995/03/26 20:14:11 glass Exp $ */ |
3 |
|
|
|
4 |
|
|
/* |
5 |
|
|
* Copyright (c) 1987, 1993, 1994 |
6 |
|
|
* The Regents of the University of California. All rights reserved. |
7 |
|
|
* |
8 |
|
|
* Redistribution and use in source and binary forms, with or without |
9 |
|
|
* modification, are permitted provided that the following conditions |
10 |
|
|
* are met: |
11 |
|
|
* 1. Redistributions of source code must retain the above copyright |
12 |
|
|
* notice, this list of conditions and the following disclaimer. |
13 |
|
|
* 2. Redistributions in binary form must reproduce the above copyright |
14 |
|
|
* notice, this list of conditions and the following disclaimer in the |
15 |
|
|
* documentation and/or other materials provided with the distribution. |
16 |
|
|
* 3. Neither the name of the University nor the names of its contributors |
17 |
|
|
* may be used to endorse or promote products derived from this software |
18 |
|
|
* without specific prior written permission. |
19 |
|
|
* |
20 |
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
21 |
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
22 |
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
23 |
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
24 |
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
25 |
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
26 |
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
27 |
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
28 |
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
29 |
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
30 |
|
|
* SUCH DAMAGE. |
31 |
|
|
*/ |
32 |
|
|
|
33 |
|
|
#include <err.h> |
34 |
|
|
#include <limits.h> |
35 |
|
|
#include <stdio.h> |
36 |
|
|
#include <stdlib.h> |
37 |
|
|
#include <string.h> |
38 |
|
|
#include <sys/dirent.h> |
39 |
|
|
|
40 |
|
|
#include "ctags.h" |
41 |
|
|
|
42 |
|
|
bool in_preload = NO; |
43 |
|
|
|
44 |
|
|
static void add_node(NODE *, NODE *); |
45 |
|
|
static void free_tree(NODE *); |
46 |
|
|
|
47 |
|
|
/* |
48 |
|
|
* pfnote -- |
49 |
|
|
* enter a new node in the tree |
50 |
|
|
*/ |
51 |
|
|
void |
52 |
|
|
pfnote(char *name, int ln) |
53 |
|
|
{ |
54 |
|
|
NODE *np; |
55 |
|
|
char *fp; |
56 |
|
|
char nbuf[1+MAXNAMLEN+1]; |
57 |
|
|
|
58 |
|
|
if (!(np = malloc(sizeof(NODE)))) { |
59 |
|
|
warnx("too many entries to sort"); |
60 |
|
|
put_entries(head); |
61 |
|
|
free_tree(head); |
62 |
|
|
if (!(head = np = malloc(sizeof(NODE)))) |
63 |
|
|
err(1, NULL); |
64 |
|
|
} |
65 |
|
|
if (!xflag && !strcmp(name, "main")) { |
66 |
|
|
if (!(fp = strrchr(curfile, '/'))) |
67 |
|
|
fp = curfile; |
68 |
|
|
else |
69 |
|
|
++fp; |
70 |
|
|
(void)snprintf(nbuf, sizeof nbuf, "M%s", fp); |
71 |
|
|
fp = strrchr(nbuf, '.'); |
72 |
|
|
if (fp && !fp[2]) |
73 |
|
|
*fp = EOS; |
74 |
|
|
name = nbuf; |
75 |
|
|
} |
76 |
|
|
if (!(np->entry = strdup(name))) |
77 |
|
|
err(1, NULL); |
78 |
|
|
np->file = curfile; |
79 |
|
|
np->lno = ln; |
80 |
|
|
np->left = np->right = 0; |
81 |
|
|
np->been_warned = NO; |
82 |
|
|
np->dynfile = in_preload; |
83 |
|
|
if (!(np->pat = strdup(lbuf))) |
84 |
|
|
err(1, NULL); |
85 |
|
|
if (!head) |
86 |
|
|
head = np; |
87 |
|
|
else |
88 |
|
|
add_node(np, head); |
89 |
|
|
} |
90 |
|
|
|
91 |
|
|
static void |
92 |
|
|
add_node(NODE *node, NODE *cur_node) |
93 |
|
|
{ |
94 |
|
|
int dif; |
95 |
|
|
|
96 |
|
|
dif = strcmp(node->entry, cur_node->entry); |
97 |
|
|
if (!dif) { |
98 |
|
|
if (node->file == cur_node->file) { |
99 |
|
|
if (!wflag) |
100 |
|
|
fprintf(stderr, "Duplicate entry in file %s, " |
101 |
|
|
"line %d: %s\nSecond entry ignored\n", |
102 |
|
|
node->file, lineno, node->entry); |
103 |
|
|
return; |
104 |
|
|
} |
105 |
|
|
if (!cur_node->been_warned) |
106 |
|
|
if (!wflag) |
107 |
|
|
fprintf(stderr, "Duplicate entry in files %s " |
108 |
|
|
"and %s: %s (Warning only)\n", |
109 |
|
|
node->file, cur_node->file, node->entry); |
110 |
|
|
cur_node->been_warned = YES; |
111 |
|
|
} |
112 |
|
|
else if (dif < 0) |
113 |
|
|
if (cur_node->left) |
114 |
|
|
add_node(node, cur_node->left); |
115 |
|
|
else |
116 |
|
|
cur_node->left = node; |
117 |
|
|
else if (cur_node->right) |
118 |
|
|
add_node(node, cur_node->right); |
119 |
|
|
else |
120 |
|
|
cur_node->right = node; |
121 |
|
|
} |
122 |
|
|
|
123 |
|
|
static void |
124 |
|
|
free_tree(NODE *node) |
125 |
|
|
{ |
126 |
|
|
if (node) { |
127 |
|
|
free_tree(node->left); |
128 |
|
|
free_tree(node->right); |
129 |
|
|
|
130 |
|
|
free(node->entry); |
131 |
|
|
free(node->pat); |
132 |
|
|
if (node->dynfile == YES) |
133 |
|
|
free(node->file); |
134 |
|
|
free(node); |
135 |
|
|
} |
136 |
|
|
} |