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
|
/*
* Copyright (c) 2020, the SerenityOS developers.
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/Debug.h>
#include <LibCpp/Lexer.h>
#include <LibCpp/SyntaxHighlighter.h>
#include <LibGUI/TextEditor.h>
#include <LibGfx/Font.h>
#include <LibGfx/Palette.h>
namespace Cpp {
static Syntax::TextStyle style_for_token_type(const Gfx::Palette& palette, Cpp::Token::Type type)
{
switch (type) {
case Cpp::Token::Type::Keyword:
return { palette.syntax_keyword(), true };
case Cpp::Token::Type::KnownType:
return { palette.syntax_type(), true };
case Cpp::Token::Type::Identifier:
return { palette.syntax_identifier(), false };
case Cpp::Token::Type::DoubleQuotedString:
case Cpp::Token::Type::SingleQuotedString:
case Cpp::Token::Type::RawString:
return { palette.syntax_string(), false };
case Cpp::Token::Type::Integer:
case Cpp::Token::Type::Float:
return { palette.syntax_number(), false };
case Cpp::Token::Type::IncludePath:
return { palette.syntax_preprocessor_value(), false };
case Cpp::Token::Type::EscapeSequence:
return { palette.syntax_keyword(), true };
case Cpp::Token::Type::PreprocessorStatement:
case Cpp::Token::Type::IncludeStatement:
return { palette.syntax_preprocessor_statement(), false };
case Cpp::Token::Type::Comment:
return { palette.syntax_comment(), false };
default:
return { palette.base_text(), false };
}
}
bool SyntaxHighlighter::is_identifier(void* token) const
{
auto cpp_token = static_cast<Cpp::Token::Type>(reinterpret_cast<size_t>(token));
return cpp_token == Cpp::Token::Type::Identifier;
}
bool SyntaxHighlighter::is_navigatable(void* token) const
{
auto cpp_token = static_cast<Cpp::Token::Type>(reinterpret_cast<size_t>(token));
return cpp_token == Cpp::Token::Type::IncludePath;
}
void SyntaxHighlighter::rehighlight(const Palette& palette)
{
auto text = m_client->get_text();
Cpp::Lexer lexer(text);
auto tokens = lexer.lex();
Vector<GUI::TextDocumentSpan> spans;
for (auto& token : tokens) {
dbgln_if(SYNTAX_HIGHLIGHTING_DEBUG, "{} @ {}:{} - {}:{}", token.type_as_string(), token.start().line, token.start().column, token.end().line, token.end().column);
GUI::TextDocumentSpan span;
span.range.set_start({ token.start().line, token.start().column });
span.range.set_end({ token.end().line, token.end().column });
auto style = style_for_token_type(palette, token.type());
span.attributes.color = style.color;
span.attributes.bold = style.bold;
span.is_skippable = token.type() == Cpp::Token::Type::Whitespace;
span.data = reinterpret_cast<void*>(token.type());
spans.append(span);
}
m_client->do_set_spans(move(spans));
m_has_brace_buddies = false;
highlight_matching_token_pair();
m_client->do_update();
}
Vector<SyntaxHighlighter::MatchingTokenPair> SyntaxHighlighter::matching_token_pairs() const
{
static Vector<SyntaxHighlighter::MatchingTokenPair> pairs;
if (pairs.is_empty()) {
pairs.append({ reinterpret_cast<void*>(Cpp::Token::Type::LeftCurly), reinterpret_cast<void*>(Cpp::Token::Type::RightCurly) });
pairs.append({ reinterpret_cast<void*>(Cpp::Token::Type::LeftParen), reinterpret_cast<void*>(Cpp::Token::Type::RightParen) });
pairs.append({ reinterpret_cast<void*>(Cpp::Token::Type::LeftBracket), reinterpret_cast<void*>(Cpp::Token::Type::RightBracket) });
}
return pairs;
}
bool SyntaxHighlighter::token_types_equal(void* token1, void* token2) const
{
return static_cast<Cpp::Token::Type>(reinterpret_cast<size_t>(token1)) == static_cast<Cpp::Token::Type>(reinterpret_cast<size_t>(token2));
}
SyntaxHighlighter::~SyntaxHighlighter()
{
}
}
|
