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
|
/*
* libfud
* 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_VIEW_HPP
#define FUD_STRING_VIEW_HPP
#include "fud_status.hpp"
#include "fud_utf8.hpp"
#include <string_view>
namespace fud {
class String;
struct StringView {
constexpr StringView() noexcept = default;
constexpr StringView(const StringView& rhs) noexcept = default;
constexpr StringView(StringView&& rhs) noexcept = default;
constexpr ~StringView() noexcept = default;
constexpr StringView& operator=(const StringView& rhs) = default;
constexpr StringView& operator=(StringView&& rhs) = default;
constexpr StringView(size_t strLen, const utf8* strData) : m_length(strLen), m_data{strData}
{
}
StringView(size_t strLen, const char* strData) :
m_length(strLen), // line break
m_data{reinterpret_cast<const utf8*>(strData)} // NOLINT(cppcoreguidelines-pro-type-reinterpret-cast)
{
}
StringView(std::string_view rhs) noexcept : StringView(rhs.length(), rhs.data()) {}
explicit StringView(const String& fudString) noexcept;
[[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();
[[nodiscard]] bool advance();
void advanceUnsafe();
[[nodiscard]] bool advance(size_t size);
void advanceUnsafe(size_t size);
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;
size_t m_length{0};
const utf8* m_data{nullptr};
};
} // namespace fud
#endif
|
