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
156
157
|
/*
* Copyright (C) 2003-2015 The Music Player Daemon Project
* http://www.musicpd.org
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "StringUtil.hxx"
#include "CharUtil.hxx"
#include "ASCII.hxx"
#include <algorithm>
#include <assert.h>
#include <string.h>
const char *
StripLeft(const char *p)
{
while (IsWhitespaceNotNull(*p))
++p;
return p;
}
const char *
StripLeft(const char *p, const char *end)
{
while (p < end && IsWhitespaceOrNull(*p))
++p;
return p;
}
const char *
StripRight(const char *p, const char *end)
{
while (end > p && IsWhitespaceOrNull(end[-1]))
--end;
return end;
}
size_t
StripRight(const char *p, size_t length)
{
while (length > 0 && IsWhitespaceOrNull(p[length - 1]))
--length;
return length;
}
void
StripRight(char *p)
{
size_t old_length = strlen(p);
size_t new_length = StripRight(p, old_length);
p[new_length] = 0;
}
char *
Strip(char *p)
{
p = StripLeft(p);
StripRight(p);
return p;
}
bool
StringStartsWith(const char *haystack, const char *needle)
{
const size_t length = strlen(needle);
return memcmp(haystack, needle, length) == 0;
}
bool
StringEndsWith(const char *haystack, const char *needle)
{
const size_t haystack_length = strlen(haystack);
const size_t needle_length = strlen(needle);
return haystack_length >= needle_length &&
memcmp(haystack + haystack_length - needle_length,
needle, needle_length) == 0;
}
const char *
FindStringSuffix(const char *p, const char *suffix)
{
const size_t p_length = strlen(p);
const size_t suffix_length = strlen(suffix);
if (p_length < suffix_length)
return nullptr;
const char *q = p + p_length - suffix_length;
return memcmp(q, suffix, suffix_length) == 0
? q
: nullptr;
}
char *
CopyString(char *gcc_restrict dest, const char *gcc_restrict src, size_t size)
{
size_t length = strlen(src);
if (length >= size)
length = size - 1;
char *p = std::copy_n(src, length, dest);
*p = '\0';
return p;
}
bool
string_array_contains(const char *const* haystack, const char *needle)
{
assert(haystack != nullptr);
assert(needle != nullptr);
for (; *haystack != nullptr; ++haystack)
if (StringEqualsCaseASCII(*haystack, needle))
return true;
return false;
}
void
ToUpperASCII(char *dest, const char *src, size_t size)
{
assert(dest != nullptr);
assert(src != nullptr);
assert(size > 1);
char *const end = dest + size - 1;
do {
char ch = *src++;
if (ch == 0)
break;
*dest++ = ToUpperASCII(ch);
} while (dest < end);
*dest = 0;
}
|
