blob: c8981c650e33b59a237924f3df8806619711b073 (
plain)
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
|
// SPDX-License-Identifier: GPL-3.0-or-later
#include "rcc/TableGen/Record.h"
#include <algorithm>
#include <cctype>
#include <ranges>
namespace rcc::targetgen {
[[nodiscard]] std::string lowerASCII(std::string_view Value) {
std::string Result(Value);
for (char &Character : Result) {
if (Character >= 'A' && Character <= 'Z')
Character = static_cast<char>(Character - 'A' + 'a');
}
return Result;
}
[[nodiscard]] bool isIdentifier(std::string_view Value) noexcept {
if (Value.empty())
return false;
const auto IsHead = [](unsigned char Character) {
return std::isalpha(Character) != 0 || Character == '_';
};
const auto IsTail = [](unsigned char Character) {
return std::isalnum(Character) != 0 || Character == '_';
};
if (!IsHead(static_cast<unsigned char>(Value.front())))
return false;
return std::ranges::all_of(Value.substr(1), [IsTail](char Character) {
return IsTail(static_cast<unsigned char>(Character));
});
}
[[nodiscard]] bool isAssemblyMnemonic(std::string_view Value) noexcept {
if (Value.empty())
return false;
if (std::islower(static_cast<unsigned char>(Value.front())) == 0)
return false;
if (std::islower(static_cast<unsigned char>(Value.back())) == 0 &&
std::isdigit(static_cast<unsigned char>(Value.back())) == 0)
return false;
return std::ranges::all_of(Value, [](char Character) {
const unsigned char Code = static_cast<unsigned char>(Character);
return std::islower(Code) != 0 || std::isdigit(Code) != 0 || Character == '.' ||
Character == '_';
});
}
[[nodiscard]] std::string upperIdentifier(std::string_view Value) {
std::string Result;
Result.reserve(Value.size());
for (const char Character : Value) {
if (Character >= 'a' && Character <= 'z')
Result.push_back(static_cast<char>(Character - 'a' + 'A'));
else if ((Character >= 'A' && Character <= 'Z') || (Character >= '0' && Character <= '9'))
Result.push_back(Character);
else
Result.push_back('_');
}
return Result;
}
void appendQuoted(std::ostream &Output, std::string_view Value) {
Output << '"';
for (const char Character : Value) {
switch (Character) {
case '\\':
Output << "\\\\";
break;
case '"':
Output << "\\\"";
break;
case '\n':
Output << "\\n";
break;
case '\r':
Output << "\\r";
break;
case '\t':
Output << "\\t";
break;
default:
Output << Character;
break;
}
}
Output << '"';
}
} // namespace rcc::targetgen
|
