1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
|
/*
* string.c - string manipulation
*
* This file is part of zsh, the Z shell.
*
* Copyright (c) 2000 Peter Stephenson
* All rights reserved.
*
* Permission is hereby granted, without written agreement and without
* license or royalty fees, to use, copy, modify, and distribute this
* software and to distribute modified versions of this software for any
* purpose, provided that the above copyright notice and the following
* two paragraphs appear in all copies of this software.
*
* In no event shall Peter Stephenson or the Zsh Development Group be liable
* to any party for direct, indirect, special, incidental, or consequential
* damages arising out of the use of this software and its documentation,
* even if Peter Stephenson and the Zsh Development Group have been advised of
* the possibility of such damage.
*
* Peter Stephenson and the Zsh Development Group specifically disclaim any
* warranties, including, but not limited to, the implied warranties of
* merchantability and fitness for a particular purpose. The software
* provided hereunder is on an "as is" basis, and Peter Stephenson and the
* Zsh Development Group have no obligation to provide maintenance,
* support, updates, enhancements, or modifications.
*/
#include "zsh.mdh"
/**/
mod_export char *
dupstring(const char *s)
{
char *t;
if (!s)
return NULL;
t = (char *) zhalloc(strlen((char *)s) + 1);
strcpy(t, s);
return t;
}
/**/
mod_export char *
ztrdup(const char *s)
{
char *t;
if (!s)
return NULL;
t = (char *)zalloc(strlen((char *)s) + 1);
strcpy(t, s);
return t;
}
/* concatenate s1, s2, and s3 in dynamically allocated buffer */
/**/
mod_export char *
tricat(char const *s1, char const *s2, char const *s3)
{
/* This version always uses permanently-allocated space. */
char *ptr;
size_t l1 = strlen(s1);
size_t l2 = strlen(s2);
ptr = (char *)zalloc(l1 + l2 + strlen(s3) + 1);
strcpy(ptr, s1);
strcpy(ptr + l1, s2);
strcpy(ptr + l1 + l2, s3);
return ptr;
}
/**/
mod_export char *
zhtricat(char const *s1, char const *s2, char const *s3)
{
char *ptr;
size_t l1 = strlen(s1);
size_t l2 = strlen(s2);
ptr = (char *)zhalloc(l1 + l2 + strlen(s3) + 1);
strcpy(ptr, s1);
strcpy(ptr + l1, s2);
strcpy(ptr + l1 + l2, s3);
return ptr;
}
/* concatenate s1 and s2 in dynamically allocated buffer */
/**/
mod_export char *
dyncat(char *s1, char *s2)
{
/* This version always uses space from the current heap. */
char *ptr;
size_t l1 = strlen(s1);
ptr = (char *)zhalloc(l1 + strlen(s2) + 1);
strcpy(ptr, s1);
strcpy(ptr + l1, s2);
return ptr;
}
/**/
mod_export char *
dupstrpfx(const char *s, int len)
{
char *r = zhalloc(len + 1);
memcpy(r, s, len);
r[len] = '\0';
return r;
}
/**/
mod_export char *
ztrduppfx(const char *s, int len)
{
char *r = zalloc(len + 1);
memcpy(r, s, len);
r[len] = '\0';
return r;
}
/* Append a string to an allocated string, reallocating to make room. */
/**/
mod_export char *
appstr(char *base, char const *append)
{
return strcat(realloc(base, strlen(base) + strlen(append) + 1), append);
}
/* Duplicate a string, stripping delimiters. */
/**/
mod_export char *
ztrdupstrip(const char *nam, char delim)
{
char *p, *buf;
buf = zalloc(strlen(nam));
for (p = buf; *nam; nam++)
if (*nam == delim && nam[1])
*p++ = *++nam;
else
*p++ = *nam;
*p = '\0';
return buf;
}
|
