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
|
/*
* Copyright 2024 Dominick Allen
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef FUD_STRING_HPP
#define FUD_STRING_HPP
#include "utf8.hpp"
#include <climits>
#include <cstddef>
static_assert(CHAR_BIT == 8);
namespace fud {
class String {
public:
[[nodiscard]] constexpr size_t length() const
{
return m_length;
}
[[nodiscard]] constexpr size_t size() const
{
return m_length + 1;
}
[[nodiscard]] constexpr size_t capacity() const
{
return m_capacity;
}
[[nodiscard]] constexpr utf8* data() const
{
return m_data;
}
[[nodiscard]] bool nullTerminated() const;
[[nodiscard]] bool valid() const;
[[nodiscard]] bool utf8Valid() const;
[[nodiscard]] FudStatus nullTerminate() const;
[[nodiscard]] constexpr size_t remainingLength() const
{
if (m_length >= m_capacity) {
return 0;
}
return m_capacity - 1U - m_length;
}
[[nodiscard]] FudStatus pushBack(char letter);
[[nodiscard]] FudStatus pushBack(utf8 letter);
[[nodiscard]] FudStatus pushBack(const ExtUtf8& letter);
std::optional<utf8> pop();
[[nodiscard]] FudStatus catenate(StringView source);
private:
utf8* m_data;
size_t m_length;
size_t m_capacity;
};
class StringView {
public:
constexpr StringView() noexcept : m_length(0), m_data{nullptr}
{
}
constexpr StringView(size_t strLen, const utf8* strData) : m_length(0), m_data{strData}
{
}
StringView(size_t strLen, const char* strData) :
m_length(0), // line break
m_data{reinterpret_cast<const utf8*>(strData)} // NOLINT(cppcoreguidelines-pro-type-reinterpret-cast)
{
}
explicit constexpr StringView(const StringView& view) noexcept = default;
explicit constexpr StringView(const String& fudString) noexcept : StringView(fudString.length(), fudString.data())
{
}
[[nodiscard]] constexpr size_t length() const
{
return m_length;
}
[[nodiscard]] constexpr const utf8* data() const
{
return m_data;
}
[[nodiscard]] bool nullTerminated() const;
[[nodiscard]] bool utf8Valid() const;
Result<size_t, FudStatus> skipWhitespace();
Result<size_t, FudStatus> trimWhitespace();
FudStatus toUint8(uint8_t& number, uint8_t specifiedRadix, size_t& strLen) const;
FudStatus toUint16(uint16_t& number, uint8_t specifiedRadix, size_t& strLen) const;
FudStatus toUint32(uint32_t& number, uint8_t specifiedRadix, size_t& strLen) const;
FudStatus toUint64(uint64_t& number, uint8_t specifiedRadix, size_t& strLen) const;
FudStatus toInt8(int8_t& number, uint8_t specifiedRadix, size_t& strLen) const;
FudStatus toInt16(int16_t& number, uint8_t specifiedRadix, size_t& strLen) const;
FudStatus toInt32(int32_t& number, uint8_t specifiedRadix, size_t& strLen) const;
FudStatus toInt64(int64_t& number, uint8_t specifiedRadix, size_t& strLen) const;
FudStatus toFloat(float& number, size_t& strLen) const;
FudStatus toDouble(double& number, size_t& strLen) const;
private:
size_t m_length;
const utf8* m_data;
};
FudStatus skipWhitespace(StringView& view, size_t& skipIndex);
} // namespace fud
#endif
|
